Table of Contents

 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
___________________________________________________________________________
Form 10-Q
(Mark One)
xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2018March 31, 2019
OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
  
For the transition period from          to
Commission File Number 1-13232 (Apartment Investment and Management Company)
Commission File Number 0-24497 (AIMCO Properties, L.P.)
 
Apartment Investment and Management Company
AIMCO Properties, L.P.
(Exact name of registrant as specified in its charter)
 
Maryland (Apartment Investment and Management Company) 84-1259577 
Delaware (AIMCO Properties, L.P.) 84-1275621 
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
 
    
4582 South Ulster Street, Suite 1100   
Denver, Colorado 80237 
(Address of principal executive offices) (Zip Code) 
(303) 757-8101
(Registrant’s telephone number, including area code)
 
Not Applicable
(Former name, former address, and former fiscal year, if changed since last report)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Apartment Investment and Management Company: Yes x    No o
AIMCO Properties, L.P.: Yes x    No o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Apartment Investment and Management Company: Yes x    No o
AIMCO Properties, L.P.: Yes x    No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Apartment Investment and Management Company:
Large accelerated filerx Accelerated filero
Non-accelerated filero(Do not check if a smaller reporting company)Smaller reporting companyo
   Emerging growth companyo
     
AIMCO Properties, L.P.:
Large accelerated filero Accelerated filerx
Non-accelerated filero(Do not check if a smaller reporting company)Smaller reporting companyo
   Emerging growth companyo
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the exchange act.
Exchange Act.
Apartment Investment and Management Company:
o  
AIMCO Properties, L.P.:
o   
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Apartment Investment and Management Company: Yes
oNox
AIMCO Properties, L.P.: Yes
oNox 
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Aimco Investment and Management Company Class A Common StockAIVNew York Stock Exchange
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
The number of shares of Apartment Investment and Management Company Class A Common Stock outstanding as of November 1, 2018: 155,644,246May 2, 2019: 148,828,469
The number of AIMCO Properties, L.P. Partnership Common Units outstanding as of November 1, 2018: 164,665,715May 2, 2019: 158,492,651
 

EXPLANATORY NOTE
This filing combines the reports on Form 10-Q for the quarterly period ended September 30, 2018,March 31, 2019, of Apartment Investment and Management Company, or Aimco, and AIMCO Properties, L.P., or the Aimco Operating Partnership. Where it is important to distinguish between the two entities, we refer to them specifically. Otherwise, references to “we,” “us” or “our” mean, collectively, Aimco, the Aimco Operating Partnership and their consolidated entities.
Aimco, a Maryland corporation, is a self-administered and self-managed real estate investment trust, or REIT. Aimco, through wholly-owned subsidiaries, is the general and special limited partner of, and as of September 30, 2018,March 31, 2019, owned a 94.6%93.9% ownership interest in the common partnership units of, the Aimco Operating Partnership. The remaining 5.4%6.1% interest is owned by limited partners. As the sole general partner of the Aimco Operating Partnership, Aimco has exclusive control of the Aimco Operating Partnership’s day-to-day management.
The Aimco Operating Partnership holds all of Aimco’s assets and manages the daily operations of Aimco’s business. Pursuant to the Aimco Operating Partnership agreement, Aimco is required to contribute to the Aimco Operating Partnership any assets, which it may acquire including all proceeds from the offerings of its securities. In exchange for the contribution of these assets,such proceeds, Aimco receives additional interests in the Aimco Operating Partnership with similar terms (e.g., if Aimco contributes proceeds of a stock offering, Aimco receives partnership units with terms substantially similar to the stock issued by Aimco).
We believe combining the periodic reports of Aimco and the Aimco Operating Partnership into this single report provides the following benefits:
We present our business as a whole, in the same manner our management views and operates the business;
We eliminate duplicative disclosure and provide a more streamlined and readable presentation because a substantial portion of the disclosures apply to both Aimco and the Aimco Operating Partnership; and
We save time and cost through the preparation of a single combined report rather than two separate reports.
We operate Aimco and the Aimco Operating Partnership as one enterprise, the management of Aimco directs the management and operations of the Aimco Operating Partnership, and the members of the Board of Directors of Aimco are identical to those of the Aimco Operating Partnership.
We believe it is important to understand the few differences between Aimco and the Aimco Operating Partnership in the context of how Aimco and the Aimco Operating Partnership operate as a consolidated company. Aimco has no assets or liabilities other than its investment in the Aimco Operating Partnership. Also, Aimco is a corporation that issues publicly traded equity from time to time, whereas the Aimco Operating Partnership is a partnership that has no publicly traded equity. Except for the net proceeds from stock offerings by Aimco, which are contributed to the Aimco Operating Partnership in exchange for additional limited partnership interests (of a similar type and in an amount equal to the shares of stock sold in the offering), the Aimco Operating Partnership generates all remaining capital required by its business. These sources include the Aimco Operating Partnership’s working capital, net cash provided by operating activities, borrowings under its revolving credit facility, the issuance of debt and equity securities, including additional partnership units, and proceeds received from the sale of apartment communities.
Equity, partners’ capital and noncontrolling interests are the main areas of difference between the condensed consolidated financial statements of Aimco and those of the Aimco Operating Partnership. Interests in the Aimco Operating Partnership held by entities other than Aimco, which we refer to as OP Units, are classified within partners’ capital in the Aimco Operating Partnership’s financial statements and as noncontrolling interests in Aimco’s financial statements.
To help investors understand the differences between Aimco and the Aimco Operating Partnership, this report provides: separate condensed consolidated financial statements for Aimco and the Aimco Operating Partnership; a single set of condensed consolidated notes to such financial statements that includes separate discussions of each entity’s stockholders’ equity or partners’ capital, as applicable; and a combined Management’s Discussion and Analysis of Financial Condition and Results of Operations section that includes discrete information related to each entity, where appropriate.
This report also includes separate Part I, Item 4. Controls and Procedures sections and separate Exhibits 31 and 32 certifications for Aimco and the Aimco Operating Partnership in order to establish that the requisite certifications have been made and that Aimco and the Aimco Operating Partnership are both compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. §1350.

APARTMENT INVESTMENT AND MANAGEMENT COMPANY
AIMCO PROPERTIES, L.P.

TABLE OF CONTENTS

FORM 10-Q

  Page
  
ITEM 1. 
  
 
 
 
 Condensed Consolidated Statements of Equity (Unaudited)
  
 
 
 
Condensed Consolidated Statements of Partners’ Capital (Unaudited)
 
 
ITEM 2.
ITEM 3.
ITEM 4.
  
ITEM 1A.
ITEM 2.
ITEM 6.
Signatures.


PART I. FINANCIAL INFORMATION

ITEM 1.Financial Statements
 
APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except share data)
(Unaudited)
September 30,
2018
 December 31,
2017
March 31,
2019
 December 31,
2018
ASSETS      
Buildings and improvements$6,503,956
 $6,174,149
$6,493,539
 $6,552,065
Land1,765,678
 1,753,604
1,731,980
 1,756,525
Total real estate8,269,634
 7,927,753
8,225,519
 8,308,590
Accumulated depreciation(2,538,979) (2,522,358)(2,581,666) (2,585,115)
Net real estate5,730,655
 5,405,395
5,643,853
 5,723,475
Cash and cash equivalents58,032
 60,498
162,286
 36,858
Restricted cash46,267
 34,827
36,103
 35,737
Other assets350,067
 272,739
441,527
 351,541
Assets held for sale
 17,959

 42,393
Assets of partnerships served by Asset Management business:   
Real estate, net
 224,873
Cash and cash equivalents
 16,288
Restricted cash
 30,928
Other assets
 15,533
Total assets$6,185,021
 $6,079,040
$6,283,769
 $6,190,004
      
LIABILITIES AND EQUITY      
Non-recourse property debt secured by Real Estate communities, net$3,646,789
 $3,545,109
Term loan, net
 249,501
Non-recourse property debt, net$3,859,023
 $3,915,305
Revolving credit facility borrowings
 67,160
70,000
 160,360
Total indebtedness associated with Real Estate portfolio3,646,789
 3,861,770
Total indebtedness3,929,023
 4,075,665
Accrued liabilities and other242,782
 213,027
293,279
 226,230
Liabilities of partnerships served by Asset Management business:   
Non-recourse property debt, net
 227,141
Accrued liabilities and other
 19,812
Liabilities related to assets held for sale
 23,177
Total liabilities3,889,571
 4,321,750
4,222,302
 4,325,072
Preferred noncontrolling interests in Aimco Operating Partnership101,320
 101,537
101,195
 101,291
Commitments and contingencies (Note 4)
 
Commitments and contingencies (Note 5)
 
Equity:      
Perpetual Preferred Stock125,000
 125,000
125,000
 125,000
Common Stock, $0.01 par value, 500,787,260 shares authorized, 157,352,109 and 157,189,447 shares issued/outstanding at September 30, 2018 and December 31, 2017, respectively1,574
 1,572
Common Stock, $0.01 par value, 500,787,260 shares authorized, 148,758,031 and 144,623,034 shares issued/outstanding at March 31, 2019 and December 31, 2018, respectively1,488
 1,446
Additional paid-in capital3,888,312
 3,900,042
3,495,295
 3,515,686
Accumulated other comprehensive income4,850
 3,603
4,851
 4,794
Distributions in excess of earnings(1,894,054) (2,367,073)(1,742,998) (1,947,507)
Total Aimco equity2,125,682
 1,663,144
1,883,636
 1,699,419
Noncontrolling interests in consolidated real estate partnerships(1,605) (1,716)(2,857) (2,967)
Common noncontrolling interests in Aimco Operating Partnership70,053
 (5,675)79,493
 67,189
Total equity2,194,130
 1,655,753
1,960,272
 1,763,641
Total liabilities and equity$6,185,021
 $6,079,040
$6,283,769
 $6,190,004

See notes to condensed consolidated financial statements.

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
(Unaudited)

Three Months Ended Nine Months EndedThree Months Ended
September 30, September 30,March 31,
2018 2017 2018 20172019 2018
REVENUES          
Rental and other property revenues attributable to Real Estate$234,048
 $233,708
 $690,571
 $686,639
Rental and other property revenues of partnerships served by Asset Management business5,022
 18,232
 42,830
 55,327
Tax credit and transaction revenues3,411
 2,695
 6,987
 8,242
Rental and other property revenues attributable to real estate$230,235
 $225,393
Asset Management business rental and tax credit revenues
 22,327
Total revenues242,481
 254,635
 740,388
 750,208
230,235
 247,720
       
OPERATING EXPENSES          
Property operating expenses attributable to Real Estate78,254
 81,244
 232,572
 239,954
Property operating expenses attributable to real estate79,184
 78,287
Property operating expenses of partnerships served by Asset Management business2,608
 8,872
 20,865
 26,458

 9,195
Depreciation and amortization96,406
 92,513
 286,439
 268,836
93,565
 92,548
General and administrative expenses12,479
 10,529
 37,196
 31,599
10,369
 11,355
Other expenses, net5,780
 2,272
 13,624
 6,661
5,703
 2,958
Total operating expenses195,527
 195,430
 590,696
 573,508
188,821
 194,343
Operating income46,954
 59,205
 149,692
 176,700
   
Interest income2,712
 2,047
 7,768
 6,251
2,726
 2,172
Interest expense(45,492) (50,682) (143,193) (145,422)(41,409) (47,795)
Gain on dispositions of real estate291,473
 53,195
Other, net(283) 6,937
 141
 7,602
72
 224
Income before income taxes and gain (loss) on dispositions3,891
 17,507
 14,408
 45,131
Income tax benefit27,941
 4,870
 69,724
 14,878
Income before gain (loss) on dispositions31,832
 22,377
 84,132
 60,009
Gain (loss) on dispositions of real estate and the Asset Management business, inclusive of related income tax572,085
 (233) 622,631
 881
Income before income tax (expense) benefit294,276
 61,173
Income tax (expense) benefit(2,981) 34,517
Net income603,917
 22,144
 706,763
 60,890
291,295
 95,690
Noncontrolling interests:          
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships(1,794) 249
 (8,045) (1,515)
Net income attributable to noncontrolling interests in consolidated real estate partnerships(91) (6,206)
Net income attributable to preferred noncontrolling interests in Aimco Operating Partnership(1,934) (1,938) (5,805) (5,826)(1,934) (1,937)
Net income attributable to common noncontrolling interests in Aimco Operating Partnership(30,198) (820) (34,093) (2,164)(15,137) (3,755)
Net income attributable to noncontrolling interests(33,926) (2,509) (47,943) (9,505)(17,162) (11,898)
Net income attributable to Aimco569,991
 19,635
 658,820
 51,385
274,133
 83,792
Net income attributable to Aimco preferred stockholders(2,148) (2,148) (6,445) (6,445)(2,148) (2,148)
Net income attributable to participating securities(814) (57) (1,004) (176)(417) (119)
Net income attributable to Aimco common stockholders$567,029
 $17,430
 $651,371
 $44,764
$271,568
 $81,525
          
Net income attributable to Aimco per common share – basic$3.62
 $0.11
 $4.16
 $0.29
Net income attributable to Aimco per common share – diluted$3.61
 $0.11
 $4.15
 $0.29
Dividends declared per common share$0.38
 $0.36
 $1.14
 $1.08
Net income attributable to Aimco per common share – basic and diluted$1.88
 $0.54
          
Weighted average common shares outstanding – basic156,711
 156,306
 156,674
 156,290
144,232
 151,872
Weighted average common shares outstanding – diluted156,938
 156,835
 156,836
 156,768
144,445
 152,000

See notes to condensed consolidated financial statements.

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
(Unaudited)

Three Months Ended Nine Months EndedThree Months Ended
September 30, September 30,March 31,
2018 2017 2018 20172019 2018
Net income$603,917
 $22,144
 $706,763
 $60,890
$291,295
 $95,690
Other comprehensive gain:       
Realized and unrealized gains (losses) on interest rate swaps
 75
 
 (280)
Other comprehensive gain (loss):   
Unrealized gains (losses) on available for sale debt securities61
 (600)
Unrealized gains on interest rate swaps
 419
Losses on interest rate swaps reclassified into earnings from accumulated other comprehensive loss757
 594
 1,391
 1,349

 119
Unrealized gains (losses) on available for sale debt securities979
 381
 (72) (40)
Other comprehensive gain1,736
 1,050
 1,319
 1,029
Other comprehensive gain (loss)61
 (62)
Comprehensive income605,653
 23,194
 708,082
 61,919
291,356
 95,628
Comprehensive income attributable to noncontrolling interests(34,020) (2,557) (48,015) (9,647)(17,166) (11,895)
Comprehensive income attributable to Aimco$571,633
 $20,637
 $660,067
 $52,272
$274,190
 $83,733


See notes to condensed consolidated financial statements.
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5APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF EQUITY
(In thousands)
(Unaudited)
 Preferred Stock Common Stock Additional Paid-in Capital Accumulated Other Comprehensive Income (Loss) Distributions in Excess of Earnings Total Aimco Equity Common Noncontrolling interests in Aimco Operating Partnerships Noncontrolling interests in consolidated real estate partnerships Total Equity
 Shares Issued Amount Shares Issued Amount       
Balances at December 31, 20175,000
 $125,000
 152,435
 $1,524
 $3,900,090
 $3,603
 $(2,367,073) $1,663,144
 $(5,675) $(1,716) $1,655,753
Redemption of Aimco Operating Partnership Units
 
 
 
 
 
 
 
 (6,963) 
 (6,963)
Amortization of share-based compensation cost
 
 19
 
 2,631
 
 
 2,631
 357
 
 2,988
Effect in changes in ownership for consolidated entities
 
 
 
 (17,486) 
 
 (17,486) 6,579
 
 (10,907)
Change in accumulated other comprehensive income
 
 
 
 
 (59) 
 (59) (3) 
 (62)
Other, net
 
 114
 1
 92
 
 
 93
 
 
 93
Net income
 
 
 
 
 
 83,792
 83,792
 3,755
 6,206
 93,753
Distributions to noncontrolling interests
 
 
 
 
 
 
 
 
 (7,245) (7,245)
Cash dividends paid to Common Stock holders
 
 
 
 
 
 (59,777) (59,777) (2,838) 
 (62,615)
Cash dividends paid to Preferred Stock holders
 
 
 
 
 
 (2,148) (2,148) 
 
 (2,148)
Balances at March 31, 20185,000
 $125,000
 152,568
 $1,525
 $3,885,327
 $3,544
 $(2,345,206) $1,670,190
 $(4,788) $(2,755) $1,662,647
                      
Balances at December 31, 20185,000
 $125,000
 144,623
 $1,446
 $3,515,686
 $4,794
 $(1,947,507) $1,699,419
 $67,189
 $(2,967) $1,763,641
Repurchases of Common Stock
 
 (461) (5) (20,677) 
 
 (20,682) 
 
 (20,682)
Redemption of Aimco Operating Partnership Units
 
 
 
 
 
 
 
 (2,557) 
 (2,557)
Amortization of share-based compensation cost
 
 22
 
 2,442
 
 
 2,442
 796
 
 3,238
Effect in changes in ownership for consolidated entities
 
 
 
 (2,168) 
 
 (2,168) 2,168
 
 
Change in accumulated other comprehensive income
 
 
 
 
 57
 
 57
 4
 
 61
Other, net
 
 82
 2
 57
 
 
 59
 
 19
 78
Net income
 
 
 
 
 
 274,133
 274,133
 15,137
 91
 289,361
Distributions to noncontrolling interests
 
 
 
 
 
 
 
 (3,244) 
 (3,244)
Cash dividends paid to Common Stock holders
 
 
 
 
 
 (67,476) (67,476) 
 
 (67,476)
Common Stock issued in special dividend
 
 4,492
 45
 (45) 
 
 
 
 
 
Cash dividends paid to Preferred Stock holders
 
 
 
 
 
 (2,148) (2,148) 
 
 (2,148)
Balances at March 31, 20195,000
 $125,000
 148,758
 $1,488
 $3,495,295
 $4,851
 $(1,742,998) $1,883,636
 $79,493
 $(2,857) $1,960,272


See notes to condensed consolidated financial statements.
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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

Nine Months EndedThree Months Ended
September 30,March 31,
2018 20172019 2018
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income$706,763
 $60,890
$291,295
 $95,690
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization286,439
 268,836
93,565
 92,548
Gain on dispositions of real estate and the Asset Management business, inclusive of related income tax(622,631) (881)
Income tax benefit(69,724) (14,878)
Gain on dispositions of real estate(291,473) (53,195)
Income tax expense (benefit)2,981
 (34,517)
Other adjustments11,762
 398
3,201
 284
Net changes in operating assets and operating liabilities(9,683) (19,216)(17,952) (19,487)
Net cash provided by operating activities302,926
 295,149
81,617
 81,323
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of real estate and deposits related to purchases of real estate(212,358) (11,706)(2,236) (164,650)
Capital expenditures(253,149) (266,623)(85,546) (75,601)
Proceeds from dispositions of real estate708,464
 10,888
342,083
 69,788
Purchases of corporate assets(5,530) (7,358)(3,319) (947)
Other investing activities1,695
 (1,086)1,422
 (218)
Net cash provided by (used in) investing activities239,122
 (275,885)252,404
 (171,628)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from non-recourse property debt360,613
 165,785

 360,613
Principal repayments of non-recourse property debt(403,141) (250,674)(19,580) (206,262)
(Repayment of) proceeds from term loan(250,000) 250,000
Net (repayments of) borrowings on revolving credit facility(67,160) 338,290
(90,360) 11,475
Repurchases of Common Stock(20,682) 
Payment of dividends to holders of Common Stock(67,405) (59,652)
Payment of dividends to holders of Preferred Stock(6,445) (6,445)(2,148) (2,148)
Payment of dividends to holders of Common Stock(178,937) (168,987)
Payment of distributions to noncontrolling interests(22,549) (15,829)(5,701) (11,902)
Redemptions of noncontrolling interests in the Aimco Operating Partnership(2,653) (7,122)
Purchases and redemptions of noncontrolling interests(12,256) (324,265)
 (1,219)
Other financing activities(415) (4,693)302
 3,012
Net cash used in financing activities(580,290) (16,818)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(38,242) 2,446
Net cash (used in) provided by financing activities(208,227) 86,795
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH125,794
 (3,510)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
72,595
 142,541
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD$104,299
 $133,596
$198,389
 $139,031

See notes to condensed consolidated financial statements.

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AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)
(Unaudited)

September 30,
2018
 December 31,
2017
March 31,
2019
 December 31,
2018
ASSETS      
Buildings and improvements$6,503,956
 $6,174,149
$6,493,539
 $6,552,065
Land1,765,678
 1,753,604
1,731,980
 1,756,525
Total real estate8,269,634
 7,927,753
8,225,519
 8,308,590
Accumulated depreciation(2,538,979) (2,522,358)(2,581,666) (2,585,115)
Net real estate5,730,655
 5,405,395
5,643,853
 5,723,475
Cash and cash equivalents58,032
 60,498
162,286
 36,858
Restricted cash46,267
 34,827
36,103
 35,737
Other assets350,067
 272,739
441,527
 351,541
Assets held for sale
 17,959

 42,393
Assets of partnerships served by Asset Management business:   
Real estate, net
 224,873
Cash and cash equivalents
 16,288
Restricted cash
 30,928
Other assets
 15,533
Total assets$6,185,021
 $6,079,040
$6,283,769
 $6,190,004
      
LIABILITIES AND EQUITY      
Non-recourse property debt secured by Real Estate communities, net$3,646,789
 $3,545,109
Term loan, net
 249,501
Non-recourse property debt, net$3,859,023
 $3,915,305
Revolving credit facility borrowings
 67,160
70,000
 160,360
Total indebtedness associated with Real Estate portfolio3,646,789
 3,861,770
Total indebtedness3,929,023
 4,075,665
Accrued liabilities and other242,782
 213,027
293,279
 226,230
Liabilities of partnerships served by Asset Management business:   
Non-recourse property debt, net
 227,141
Accrued liabilities and other
 19,812
Liabilities related to assets held for sale
 23,177
Total liabilities3,889,571
 4,321,750
4,222,302
 4,325,072
Redeemable preferred units101,320
 101,537
101,195
 101,291
Commitments and contingencies (Note 4)
 
Commitments and contingencies (Note 5)
 
Partners’ capital:      
Preferred units125,000
 125,000
125,000
 125,000
General Partner and Special Limited Partner2,000,682
 1,538,144
1,758,636
 1,574,419
Limited Partners70,053
 (5,675)79,493
 67,189
Partners’ capital attributable to the Aimco Operating Partnership2,195,735
 1,657,469
1,963,129
 1,766,608
Noncontrolling interests in consolidated real estate partnerships(1,605) (1,716)(2,857) (2,967)
Total partners’ capital2,194,130
 1,655,753
1,960,272
 1,763,641
Total liabilities and partners’ capital$6,185,021
 $6,079,040
$6,283,769
 $6,190,004

See notes to condensed consolidated financial statements.

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AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per unit data)
(Unaudited)

Three Months Ended Nine Months EndedThree Months Ended
September 30, September 30,March 31,
2018 2017 2018 20172019 2018
REVENUES          
Rental and other property revenues attributable to Real Estate$234,048
 $233,708
 $690,571
 $686,639
Rental and other property revenues of partnerships served by Asset Management business5,022
 18,232
 42,830
 55,327
Tax credit and transaction revenues3,411
 2,695
 6,987
 8,242
Rental and other property revenues attributable to real estate$230,235
 $225,393
Asset Management business rental and tax credit revenues
 22,327
Total revenues242,481
 254,635
 740,388
 750,208
230,235
 247,720
          
OPERATING EXPENSES          
Property operating expenses attributable to Real Estate78,254
 81,244
 232,572
 239,954
Property operating expenses attributable to real estate79,184
 78,287
Property operating expenses of partnerships served by Asset Management business2,608
 8,872
 20,865
 26,458

 9,195
Depreciation and amortization96,406
 92,513
 286,439
 268,836
93,565
 92,548
General and administrative expenses12,479
 10,529
 37,196
 31,599
10,369
 11,355
Other expenses, net5,780
 2,272
 13,624
 6,661
5,703
 2,958
Total operating expenses195,527
 195,430
 590,696
 573,508
188,821
 194,343
Operating income46,954
 59,205
 149,692
 176,700
   
Interest income2,712
 2,047
 7,768
 6,251
2,726
 2,172
Interest expense(45,492) (50,682) (143,193) (145,422)(41,409) (47,795)
Gain on dispositions of real estate291,473
 53,195
Other, net(283) 6,937
 141
 7,602
72
 224
Income before income taxes and gain (loss) on dispositions3,891
 17,507
 14,408
 45,131
Income tax benefit27,941
 4,870
 69,724
 14,878
Income before gain (loss) on dispositions31,832
 22,377
 84,132
 60,009
Gain (loss) on dispositions of real estate and the Asset Management business, inclusive of related income tax572,085
 (233) 622,631
 881
Income before income tax (expense) benefit294,276
 61,173
Income tax (expense) benefit(2,981) 34,517
Net income603,917
 22,144
 706,763
 60,890
291,295
 95,690
Net (income) loss attributable to noncontrolling interests in consolidated real estate partnerships(1,794) 249
 (8,045) (1,515)
Net income attributable to noncontrolling interests in consolidated real estate partnerships(91) (6,206)
Net income attributable to the Aimco Operating Partnership602,123
 22,393
 698,718
 59,375
291,204
 89,484
Net income attributable to the Aimco Operating Partnership’s preferred unitholders(4,082) (4,086) (12,250) (12,271)(4,082) (4,085)
Net income attributable to participating securities(941) (61) (1,145) (184)(483) (125)
Net income attributable to the Aimco Operating Partnership’s common unitholders$597,100
 $18,246
 $685,323
 $46,920
$286,639
 $85,274
          
Net income attributable to the Aimco Operating Partnership per common unit – basic$3.62
 $0.11
 $4.17
 $0.29
Net income attributable to the Aimco Operating Partnership per common unit – diluted$3.61
 $0.11
 $4.16
 $0.29
Distributions declared per common unit$0.38
 $0.36
 $1.14
 $1.08
Net income attributable to the Aimco Operating Partnership per common unit – basic and diluted$1.88
 $0.54
          
Weighted average common units outstanding – basic165,081
 163,664
 164,493
 163,739
152,303
 158,875
Weighted average common units outstanding – diluted165,326
 164,194
 164,654
 164,218
152,632
 159,006
 

See notes to condensed consolidated financial statements.

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AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
(Unaudited)

Three Months Ended Nine Months EndedThree Months Ended
September 30, September 30,March 31,
2018 2017 2018 20172019 2018
Net income$603,917
 $22,144
 $706,763
 $60,890
$291,295
 $95,690
Other comprehensive gain:       
Realized and unrealized gains (losses) on interest rate swaps
 75
 
 (280)
Other comprehensive gain (loss):   
Unrealized gains (losses) on available for sale debt securities61
 (600)
Unrealized gains on interest rate swaps
 419
Losses on interest rate swaps reclassified into earnings from accumulated other comprehensive loss757
 594
 1,391
 1,349

 119
Unrealized gains (losses) on available for sale debt securities979
 381
 (72) (40)
Other comprehensive gain1,736
 1,050
 1,319
 1,029
Other comprehensive gain (loss)61
 (62)
Comprehensive income605,653
 23,194
 708,082
 61,919
291,356
 95,628
Comprehensive (income) loss attributable to noncontrolling interests(1,794) 249
 (8,045) (1,616)
Comprehensive income attributable to noncontrolling interests(91) (6,206)
Comprehensive income attributable to the Aimco Operating Partnership$603,859
 $23,443
 $700,037
 $60,303
$291,265
 $89,422


See notes to condensed consolidated financial statements.
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9AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS’ CAPITAL
(In thousands)
(Unaudited)


 
Preferred
Units
 
General Partner
and Special
Limited Partner
 Limited Partners Partners’ capital attributable to the Aimco Operating Partnership Noncontrolling interests Total Partners’ capital
Balances at December 31, 2017$125,000
 $1,538,144
 $(5,675) $1,657,469
 $(1,716) $1,655,753
Redemption of partnership units held by non-Aimco partners
 
 (6,963) (6,963) 
 (6,963)
Amortization of share-based compensation
 2,631
 357
 2,988
 
 2,988
Effect of changes in ownership for consolidated entities
 (17,486) 6,579
 (10,907) 
 (10,907)
Change in accumulated other comprehensive income
 (59) (3) (62) 
 (62)
Other, net
 93
 
 93
 
 93
Net income
 83,792
 3,755
 87,547
 6,206
 93,753
Distributions to noncontrolling interests
 
 
 
 (7,245) (7,245)
Distributions to common unitholders
 (59,777) (2,838) (62,615) 
 (62,615)
Distributions to preferred unitholders
 (2,148) 
 (2,148) 
 (2,148)
Balances at March 31, 2018$125,000

$1,545,190
 $(4,788) $1,665,402
 $(2,755) $1,662,647
            
Balance at December 31, 2018$125,000
 $1,574,419
 $67,189
 $1,766,608
 $(2,967) $1,763,641
Repurchases of common partnership units
 (20,682) 
 (20,682) 
 (20,682)
Redemption of partnership units held by non-Aimco partners
 
 (2,557) (2,557) 
 (2,557)
Amortization of share-based compensation
 2,442
 796
 3,238
 
 3,238
Effect of changes in ownership for consolidated entities
 (2,168) 2,168
 
 
 
Change in accumulated other comprehensive income
 57
 4
 61
 
 61
Other, net
 59
 
 59
 19
 78
Net income
 274,133
 15,137
 289,270
 91
 289,361
Distributions to common unitholders
 (67,476) (3,244) (70,720) 
 (70,720)
Distributions to preferred unitholders
 (2,148) 
 (2,148) 
 (2,148)
Balances at March 31, 2019$125,000
 $1,758,636
 $79,493
 $1,963,129
 $(2,857) $1,960,272

See notes to condensed consolidated financial statements.
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AIMCO PROPERTIES, L.P.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

Nine Months EndedThree Months Ended
September 30,March 31,
2018 20172019 2018
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income$706,763
 $60,890
$291,295
 $95,690
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization286,439
 268,836
93,565
 92,548
Gain on dispositions of real estate and the Asset Management business, inclusive of related income tax(622,631) (881)
Income tax benefit(69,724) (14,878)
Gain on dispositions of real estate(291,473) (53,195)
Income tax expense (benefit)2,981
 (34,517)
Other adjustments11,762
 398
3,201
 284
Net changes in operating assets and operating liabilities(9,683) (19,216)(17,952) (19,487)
Net cash provided by operating activities302,926
 295,149
81,617
 81,323
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of real estate and deposits related to purchases of real estate(212,358) (11,706)(2,236) (164,650)
Capital expenditures(253,149) (266,623)(85,546) (75,601)
Proceeds from dispositions of real estate708,464
 10,888
342,083
 69,788
Purchases of corporate assets(5,530) (7,358)(3,319) (947)
Other investing activities1,695
 (1,086)1,422
 (218)
Net cash provided by (used in) investing activities239,122
 (275,885)252,404
 (171,628)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from non-recourse property debt360,613
 165,785

 360,613
Principal repayments of non-recourse property debt(403,141) (250,674)(19,580) (206,262)
(Repayment of) proceeds from term loan(250,000) 250,000
Net (repayments of) borrowings on revolving credit facility(67,160) 338,290
(90,360) 11,475
Repurchases of common partnership units held by General Partner and Special Limited Partner(20,682) 
Payment of distributions to holders of Preferred Units(12,250) (12,271)(4,082) (4,085)
Payment of distributions to General Partner and Special Limited Partner(178,937) (168,987)(67,405) (59,652)
Payment of distributions to Limited Partners(8,810) (8,026)(3,767) (2,737)
Payment of distributions to noncontrolling interests(7,934) (1,977)
 (7,228)
Purchases and redemptions of noncontrolling interests in the Aimco Operating Partnership(2,653) (7,122)
Purchases of noncontrolling interests in consolidated real estate partnerships(3,581) (311,079)
 (1,219)
Purchases and redemptions of noncontrolling interests in the Aimco Operating Partnership(8,675) (13,187)
Other financing activities(415) (4,692)302
 3,012
Net cash used in financing activities(580,290) (16,818)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(38,242) 2,446
Net cash (used in) provided by financing activities(208,227) 86,795
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH125,794
 (3,510)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD142,541
 131,150
72,595
 142,541
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD$104,299
 $133,596
$198,389
 $139,031

See notes to condensed consolidated financial statements.

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APARTMENT INVESTMENT AND MANAGEMENT COMPANY
AIMCO PROPERTIES, L.P.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
September 30, 2018March 31, 2019
(Unaudited)

Note 1 — Organization
Apartment Investment and Management Company, or Aimco, is a Maryland corporation incorporated on January 10, 1994. Aimco is a self-administered and self-managed real estate investment trust, or REIT. AIMCO Properties, L.P., or the Aimco Operating Partnership, is a Delaware limited partnership formed on May 16, 1994, to conduct our business, which is focused on the ownership, management, redevelopment and limitedsome development of quality apartment communities located in several of the largest markets in the United States.
Aimco, through its wholly-owned subsidiaries, AIMCO-GP, Inc. and AIMCO-LP Trust, owns a majority of the ownership interests in the Aimco Operating Partnership. Aimco conducts all of its business and owns all of its assets through the Aimco Operating Partnership. Interests in the Aimco Operating Partnership that are held by limited partners other than Aimco are referred to as OP Units. OP Units include common partnership units, which we refer to as common OP Units, as well as partnership preferred units, which we refer to as preferred OP Units. As of September 30, 2018,March 31, 2019, after eliminations for units held by consolidated subsidiaries, the Aimco Operating Partnership had 166,384,727158,435,979 common partnership units outstanding. As of September 30, 2018,March 31, 2019, Aimco owned 157,352,109148,758,031 of the common partnership units (94.6%(93.9% of the common partnership units) of the Aimco Operating Partnership and Aimco had outstanding an equal number of shares of its Class A Common Stock, which we refer to as Common Stock.
Except as the context otherwise requires, “we,” “our” and “us” refer to Aimco, the Aimco Operating Partnership and their consolidated subsidiaries, collectively.
As of September 30, 2018,March 31, 2019, we owned an equity interest in 133128 apartment communities with 36,48134,349 apartment homes in our Real Estate portfolio. Our Real Estate portfolio is diversified by both price point and geography and consists primarily of market rate apartment communities in which we own a substantial interest. We consolidated 129124 of these apartment communities with 36,33934,207 apartment homes and these communities comprise our reportable segment.segments.
Note 2 — Basis of Presentation and Summary of Significant Accounting Policies
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with such rules and regulations, although management believes the disclosures are adequate to prevent the information presented from being misleading. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2018,March 31, 2019, are not necessarily indicative of the results that may be expected for the year ending December 31, 2018.2019.
The balance sheets of Aimco and the Aimco Operating Partnership at December 31, 2017,2018, have been derived from their respective audited financial statements at that date, but do not include all of the information and disclosures required by GAAP for complete financial statements. For further information, refer to the financial statements and notes thereto included in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017.2018. Except where indicated, the footnotes refer to both Aimco and the Aimco Operating Partnership.

Principles of Consolidation
Aimco’s accompanying condensed consolidated financial statements include the accounts of Aimco, the Aimco Operating Partnership, and their consolidated subsidiaries. The Aimco Operating Partnership’s condensed consolidated financial statements include the accounts of the Aimco Operating Partnership and its consolidated subsidiaries (see Note 89). All significant intercompany balances and transactions have been eliminated in consolidation.
Interests in the Aimco Operating Partnership that are held by limited partners other than Aimco are reflected in Aimco’s accompanying condensed consolidated balance sheets as noncontrolling interests in the Aimco Operating Partnership. Interests in partnerships consolidated by the Aimco Operating Partnership that are held by third parties are reflected in our accompanying condensed consolidated balance sheets as noncontrolling interests in consolidated real estate partnerships.

Temporary Equity and Partners’ Capital
The following table presents a reconciliation of the Aimco Operating Partnership’s preferred OP Units from December 31, 20172018 to September 30, 2018.March 31, 2019. The preferred OP Units may be redeemed at the holders’ option (as further discussed in Note 56), and are therefore presented within temporary equity in Aimco’s condensed consolidated balance sheets and within temporary capital in the Aimco Operating Partnership’s condensed consolidated balance sheets (in thousands).
Balance, December 31, 2017$101,537
Distributions to holders of preferred OP Units(5,805)
Redemption of preferred OP Units and other(217)
Net income attributable to preferred OP Units5,805
Balance, September 30, 2018$101,320
Aimco Equity (including Noncontrolling Interests)
The following table presents a reconciliation of Aimco’s consolidated permanent equity accounts from December 31, 2017 to September 30, 2018 (in thousands):
 
Aimco
Equity
 
Noncontrolling
interests in
consolidated real estate
partnerships
 
Common
noncontrolling
interests in
Aimco Operating
Partnership
 
Total
Equity
Balance, December 31, 2017$1,663,144
 $(1,716) $(5,675) $1,655,753
Issuance of common OP Units
 
 50,151
 50,151
Dividends on Preferred Stock(6,445) 
 
 (6,445)
Dividends and distributions on Common Stock and common OP Units(179,351) (7,934) (9,402) (196,687)
Redemptions of common OP Units
 
 (8,458) (8,458)
Amortization of stock-based compensation cost6,285
 
 1,236
 7,521
Effect of changes in ownership for consolidated entities(18,137) 
 8,036
 (10,101)
Change in accumulated other comprehensive loss1,247
 
 72
 1,319
Other119
 
 
 119
Net income658,820
 8,045
 34,093
 700,958
Balance, September 30, 2018$2,125,682
 $(1,605) $70,053
 $2,194,130

Partners’ Capital attributable to the Aimco Operating Partnership
The following table presents a reconciliation of the consolidated partners’ capital balances in permanent capital that are attributable to the Aimco Operating Partnership from December 31, 2017 to September 30, 2018 (in thousands):
 
Partners’ capital
 attributable to
the Aimco Operating Partnership
Balance, December 31, 2017$1,657,469
Issuance of common OP Units50,151
Distributions to preferred units held by Aimco(6,445)
Distributions to common units held by Aimco(179,351)
Distributions to common units held by Limited Partners(9,402)
Redemption of common OP Units(8,458)
Amortization of Aimco stock-based compensation cost7,521
Effect of changes in ownership for consolidated entities(10,101)
Change in accumulated other comprehensive loss1,319
Other119
Net income692,913
Balance, September 30, 2018$2,195,735
A separate reconciliation of noncontrolling interests in consolidated real estate partnerships and total partners’ capital for the Aimco Operating Partnership is not presented as these amounts are identical to the corresponding noncontrolling interests in consolidated real estate partnerships and total equity for Aimco, which are presented above.
Balance, December 31, 2018$101,291
Distributions to holders of preferred OP Units(1,934)
Redemption of preferred OP Units and other(96)
Net income attributable to preferred OP Units1,934
Balance, March 31, 2019$101,195
Use of Estimates
The preparation of our condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts included in the financial statements and accompanying notes thereto. Actual results could differ from those estimates.
Reclassifications and Revisions
Certain items included in the year-to-date 2018 and 2017condensed consolidated financial statements have been reclassified to conform to the current presentation. We have also reclassified gain on dispositions of real estate and related income taxes, which were previously reported net on our condensed consolidated statements of operations, to now present gain on dispositions of real estate as a component of income before income taxes in our condensed consolidated statements of operations, as follows (in thousands):
Income Taxes
 March 31, 2018
 As Previously Reported Adjustments As Revised
Income tax benefit$37,388
 $(2,871) $34,517
Gain on dispositions of real estate50,324
 2,871
 53,195
During the three months ended March 31, 2019, Aimco and the Aimco Operating Partnership effected a reverse split of share of common shares and common partnership units, respectively, at a ratio of 1 share or unit for every 1.03119 shares or units outstanding on the date of effectiveness. The accounting guidance for recapitalization events requires that we revise Aimco’s equity and the Aimco Operating Partnership’s partners’ capital as if the reverse split had occurred at the beginning of the earliest period presented. As discussed in Note 9 tosuch, we have revised the consolidated financial statements in Item 8outstanding share and unit counts, presentation of our Form 10-K forshare and unit activity, and earnings per share and unit, as if the year endedreverse split had occurred on December 31, 2017, we have not completed our accounting for the tax effects of the enactment of the Tax Cuts and Jobs Act in late December 2017. Due to the sale of our Asset Management business, discussed further in Note 3, during the nine months ended September 30, 2018, we reversed the remaining valuation allowance recognized as of December 31, 2017, against our deferred tax benefits that we now expect to utilize.
Accounting Pronouncements Adopted in the Current Year
Effective January 1, 2018,2019, we adopted a newthe lease accounting standard issued by the Financial Accounting Standards Board, or FASB, that affects accounting for revenue. Under this new standard, revenue is generally recognized when an entity has transferred control of goods or servicesFASB. We elected to a customer for an amount reflecting the consideration to which the entity expects to be entitled for such exchange. In evaluating the contracts we enter into in the ordinary course of business, substantially all of our revenue is generated by lease agreements, which will continue to be subject to existing GAAP until 2019, when we will adopt the new lease accounting standard.
The new revenue standard also introduced new guidance for accounting for other income, including how we measure gains or losses on the sale of real estate. We adopted the new standard using practical expedients that: do not require a look back to expired or existing contracts for embedded leases; allow us to retain the modified retrospectiveclassification of existing leases; and allow us to retain the previous accounting for the initial direct costs of existing leases. Under the new standard, a contract is or contains a lease when it provides the right to control the use of an asset for a period of time in exchange for consideration.
Lessor accounting remains largely unchanged. In our position as a lessor, we have elected the practical expedient that allows us to combine revenue attributable to nonlease components with associated lease components where the timing and pattern of transfer of the components are the same. As a result, we will combine rent payments with payments for other services we provide to our residents, including residents’ reimbursement of utility expenses. We have adopted the standard using the optional transition method effective January 1, 2018, with no effect on our results of operations or financial position.

Effective January 1, 2018, we also adopted new standards issued by the FASB that affect the presentation and disclosure of the statements of cash flows. We are now requiredallows for prior reporting periods to present combined inflows and outflows of cash, cash equivalents, and restricted cash in the consolidated statement of cash flows. Previously our consolidated statements of cash flows presented transfers between restricted and unrestricted cash accountsremain as operating, financing, and investing cash activities depending upon the required or intended purpose for the restricted funds. The new guidance also requires debt prepayment and other extinguishment related paymentsoriginally presented. Please refer to be classified as financing activities. We previously classified such payments as operating activities. We have revised our condensed consolidated statements of cash flows for the nine months ended September 30, 2017 to conform to this presentation, and the effect of the revisions to net cash flows from operating, investing, and financing activities as previously reported for the nine months ended September 30, 2017 are summarized in the following table (in thousands):
 As Previously Reported Adjustments As Revised
Net cash provided by operating activities$285,025
 $10,124
 $295,149
Net cash used in investing activities(274,139) (1,746) (275,885)
Net cash used in financing activities(16,449) (369) (16,818)
Recent Accounting PronouncementsNote 4.
In 2018, the Securities Exchange Commission, or SEC, amended its rules to eliminate, modify, or integrate into other SEC requirements certain disclosure rules. The amendments are intended to simplify compliance without significantly changing the total mix of information provided to investors and are generally effective on November 5, 2018.investors. The amendments remove the SEC rule that requires REITs to present gain or loss on the sale of real estate, net of income tax, in the statement of operations. Consistent with the SEC’s historical requirements, we present gain or loss on dispositions of real estate below continuing operations and net of tax. Accordingly we will recast our consolidated statements of operations to present gain or loss on dispositions of real estate as a component of income before income taxes beginning in our financial statements for the year ending December 31, 2018. Additionally, SEC rules currently require changes in equity subsequent to the prior year-end as either a separate financial statement or in the notes to interim financial statements. We present changes in equity within a footnote to our interim condensed consolidated financial statements in accordance with the SEC rule. The amendments createcreated a requirement to report changes in equity and dividends per share in interim periods as a separate financial statement or within a footnote on a comparative basis for both quarter-to-date and year-to-date periods presented. This disclosure is required for interim financial statements of quarters beginning after the effective date; therefore, we will present We have presented

comparative interim statements of stockholdersstockholders’ and partners’ equity beginning in our condensed consolidated financial statements for the three months endingended March 31, 2019.2019 and 2018.
Recent Accounting Pronouncements
In 2018,June 2016, the FASB amendedissued a new standard for accounting for financial instruments and credit losses thereon, which changes the method and timing of the recognition of credit losses on financial assets. The standard will require us to estimate and record credit losses over the life of a receivable at its inception. We have limited loans receivable and we invest in debt securities, which are subject to the new standard. Receivables related to operating leases are excluded from the new standard onas they are subject to the lease accounting whichstandard. This standard is required to be applied using a modified-retrospective approach and requires a cumulative-effect adjustment to retained earnings be recorded as of the date of adoption. The new standard is effective for us on January 1, 2019. The amendment introduced an optional transition method, which allows the recognition of a cumulative-effect adjustment in the period of adoption and for prior reporting periods to remain as originally presented. Additionally, the amendment introduced a practical expedient for lessors to account for lease and nonlease components as a single component if the timing and pattern of transfer of components2020. We are the same, and the lease component would be classified as an operating lease if accounted for separately. We have substantially completed our evaluation of the amendment and expect to elect both the transition option and lessor practical expedient concurrent with our adoption of the standard. We do not anticipate significant changes in the timing of income from our leases with residents. However, in circumstances where we are a lessee, primarily a few ground leases and leases for corporate office space, we will be required to recognize right of use assets and related lease liabilities on our consolidated balance sheets. We arecurrently in the process of determining the amountcompleting our analysis of the rightimpact of use assetsthe standard and related lease liabilities that will be recognized upon adoption.do not expect it to have a material effect on our financial position or results of operations.
Note 3 — Significant Transactions Acquisitions and Dispositions of Apartment Communities
AcquisitionDispositions of Apartment Communities
During the ninethree months ended September 30, 2018,March 31, 2019, we acquired for $160.0 million Bent Tree Apartments, a 748-apartment home community in Fairfax County, Virginia. The purchase price, plus $1.0 million of capitalized transaction costs, was allocated as follows: $47.0 million to land; $113.0 million to buildings and improvements; and $1.0 million to other items.
During the nine months ended September 30, 2018, we acquired foursold apartment communities as summarized below (dollars in the Philadelphia area, including 665 apartment homes and 153,000 square feet of office and retail space. The gross purchase price consisted of $208.9 million of assumed property-level debt and the issuance of 1.2 million OP Units. In accordance with GAAP, the OP Units were valued at $41.08 per unit, the closing price of Aimco’s common share on May 1, 2018. Total consideration, plus $6.4 million of capitalized transaction costs, was allocated as follows: $14.1 million to land; $289.7 million to buildings and improvements; $8.3 million to intangible assets; and $12.3 millionto intangible liabilities. In connection with the foregoing, we have also contracted to acquirethousands):

an additional apartment community in the Philadelphia area, which is expected to be purchased upon completion of the construction in the first half of 2019.
Apartment communities sold7
Apartment homes sold2,206
Gain on dispositions of real estate$291,473
Dispositions of Apartment Communities and Assets Held for Sale
During the nine months ended September 30, 2018, we sold fourThe apartment communities with 1,334sold were predominantly located outside of our primary markets or in lower-rated locations within our primary markets, and had average revenues per apartment homes for a gain on dispositionhome significantly below those of $173.2 million, net of income tax, and gross proceeds of $242.3 million resulting in $230.1 million in net proceeds to us. Two of these communities are located in southern Virginia, one in suburban Maryland, and one in north Philadelphia.
During the nine months ended September 30, 2018, we sold our interests in the entities owning the La Jolla Cove property in settlement of legal actions filed in 2014 by a group of disappointed buyers who had hoped to acquire the property. We provided seller financing with a stated value of $48.6 million and received net cash proceeds of approximately $5.0 million in the sale.
During the nine months ended September 30, 2018, we sold for $590.0 million our Asset Management business and our four affordable apartment communities located in the Hunters Point area of San Francisco. The sale resulted in a gain of $448.2 million, net of $54.1 million of taxes, and net cash proceeds of $512.2 million after payment of transaction costs and repayment of property-level debt encumbering the Hunters Point apartment communities.retained portfolio.
In addition to the apartment communities we sold during the periods presented,current period, from time to time we may be marketing for sale certain apartment communities that are inconsistent with our long-term investment strategy. At the end of each reporting period, we evaluate whether such communities meet the criteria to be classified as held for sale. As of September 30, 2018,March 31, 2019, no apartment communities were classified as held for sale.
Note 4 — Leases
The majority of payments that we receive for our residential and commercial leases are fixed. We receive variable payments from our residents and commercial tenants primarily for utility and other expense reimbursements. For the three months ended March 31, 2019, our total lease income was comprised of the following amounts for all operating leases (in thousands):
Fixed lease income$215,581
Variable lease income14,144
Total lease income$229,725
In general, our leases have options to extend for a certain period of time at the lessee’s option. Future minimum annual rental payments we will receive under commercial operating leases are as follows (in thousands). We do not include our residential operating leases due to their shorter duration.
April 1, 2019 to December 31, 2019$13,431
202016,103
202113,736
202213,246
202312,394
Thereafter57,942
Total$126,852
Beginning in 2019, we are required to recognize right of use assets and related lease liabilities on our consolidated balance sheets when we are the lessee. Upon adoption of the standard, we recognized right of use assets of $87.5 million, which is presented in the Other assets line item on our condensed consolidated balance sheets, net of accumulated amortization. We also recognized

the related lease liabilities of $79.7 million, which are presented in the Accrued liabilities and other line item on our condensed consolidated balance sheets. We estimated the value of the lease liabilities using a discount rate equivalent to an incremental borrowing rate, or the rate Aimco would pay on a secured borrowing with similar terms to the lease, based on Aimco’s borrowing profile and the term of the underlying lease.
Substantially all of the payments under our ground and office leases are fixed. Rents for extension periods, when provided for in the lease, are generally determined based on a fair value factor at the time the option is exercised; therefore, these extension periods are not included in our determination of the right of use asset and lease liability. For the three months ended March 31, 2019, our total lease cost for ground and office leases was $3.2 million and $0.7 million, respectively.
The ground and office leases have weighted average remaining terms of 79.4 years and 9.5 years, respectively, and weighted average discount rates of 4.12% and 3.65%, respectively. Minimum annual rental payments under operating leases, reconciled to the lease liabilities recognized on our condensed consolidated balance sheets are as follows (in thousands):
 Office Lease Obligations Ground Lease Obligations Total Operating Lease Obligations
April 1, 2019 to December 31, 2019$1,957
 $1,586
 $3,543
20202,806
 2,350
 5,156
20212,704
 2,439
 5,143
20222,561
 2,492
 5,053
20231,871
 2,492
 4,363
Thereafter10,644
 422,169
 432,813
Total$22,543
 $433,528
 $456,071
Less: Discount(17,891) (357,386)  
Total lease liability$4,652
 $76,142
  
Note 5 — Commitments and Contingencies
Commitments
In connection with our redevelopment, development and capital improvement activities, we have entered into various construction-related contracts and we have made commitments to complete redevelopment and development of certain apartment communities, pursuant to financing or other arrangements. As of September 30, 2018,March 31, 2019, our commitments related to these capital activities totaled approximately $130.6$184.7 million, most of which we expect to incur during the next 12 months.
We enter into certain commitments for future purchases of goods and services in connection with the operations of our apartment communities. Those commitments generally have terms of one year or less and reflect expenditure levels comparable to our historical expenditures.
Tax Credit Arrangements
For various partnerships served by our Asset Management business prior to its sale, we were required to manage the partnerships and related apartment communities in compliance with various laws, regulations and contractual provisions that apply to historic and low-income housing tax credit syndication arrangements. In some instances, noncompliance with applicable requirements could result in projected tax benefits not being realized by the limited partners in these partnerships and would require a refund or reduction of investor capital contributions for actions taken during our ownership. In connection with the July 25, 2018, sale of our Asset Management business, the performance obligation related to continuing compliance was assumed by the purchaser.
Income Taxes
In 2014, the Internal Revenue Service initiated an audit of the Aimco Operating Partnership’s 2011 and 2012 tax years. We do not believe the audit will have any material effect on our unrecognized tax benefits, financial condition or results of operations.
Legal Matters
In addition to the matters described below, we are a party to various legal actions and administrative proceedings arising in the ordinary course of business, some of which are covered by our general liability insurance program, and none of which we expect to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
Environmental
Various federal, state and local laws subject apartment community owners or operators to liability for management, and the costs of removal or remediation, of certain potentially hazardous materials that may be present in the land or buildings of an apartment community. Such laws often impose liability without regard to fault or whether the owner or operator knew of, or was responsible for, the presence of such materials. The presence of, or the failure to manage or remediate properly, these materials may adversely affect occupancy at such apartment communities as well as the ability to sell or finance such apartment communities.

In addition, governmental agencies may bring claims for costs associated with investigation and remediation actions. Moreover,

private plaintiffs may potentially make claims for investigation and remediation costs they incur or for personal injury, disease, disability or other infirmities related to the alleged presence of hazardous materials. In addition to potential environmental liabilities or costs associated with our current apartment communities, we may also be responsible for such liabilities or costs associated with communities we acquire or manage in the future, or apartment communities we no longer own or operate.
We are engaged in discussions with the Environmental Protection Agency, or EPA, and the Indiana Department of Environmental Management, or IDEM, regarding contaminated groundwater in a residential area in the vicinity ofnear an Indiana apartment community that has not been owned by us since 2008. The contamination allegedly derives from a dry cleaner that operated on our former property, prior to our ownership. We have undertakenundertook a voluntary remediation of the dry cleaner contamination under IDEM’s oversight, and in previous years accrued our share of the then-estimated cleanup and abatement costs.oversight. In 2016, EPA listed our former community and a number of residential communities in the vicinity on the National Priorities List, or NPL (i.e. as a Superfund site). In May 2018, we prevailed on our federal judicial appeal vacating the Superfund listing. We continue to work with EPA and IDEM to identify options for clean-up of the site. Although the outcome of these processes are uncertain, we do not expect their resolution to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
We also have been contacted by regulators and the current owner ofa contingent liability stemming from a property in Lake Tahoe, California, regarding environmental issues allegedly stemmingcontamination from the historic operation of a dry cleaner. An entity owned by us was the former general partner of a now-dissolved partnership that previously owned a site that was used for dry cleaning. That entity and the current property owner have been remediating the dry cleaner site since 2009, under the oversight of the Lahontan Regional Water Quality Control Board, or Lahontan. In May 2017, Lahontan issued a final cleanup and abatement order that names four potentially-responsible parties, acknowledges that there may be additional responsible parties, and requires the named parties to perform additional groundwater investigation and corrective actions with respect to onsite and offsite contamination. We are appealing the final order while simultaneously complying with it. Although the outcome of this process is uncertain, we do not expect its resolution to have a material adverse effect on our consolidated financial condition, results of operations or cash flows.
We have determined that our legal obligations to remove or remediate certain potentially hazardous materials may be conditional asset retirement obligations, as defined in GAAP. Except in limited circumstances where the asset retirement activities are expected to be performed in connection with a planned construction project or apartment community casualty, we believe that the fair value of our asset retirement obligations cannot be reasonably estimated due to significant uncertainties in the timing and manner of settlement of those obligations. Asset retirement obligations that are reasonably estimable as of September 30, 2018,March 31, 2019, are immaterial to our consolidated financial condition, results of operations and cash flows.
Note 56 — Earnings and Dividends per Share and Unit
Aimco and the Aimco Operating Partnership calculate basic earnings per common share and basic earnings per common unit based on the weighted average number of shares of Common Stock and common partnership units and participating securities outstanding, and calculate diluted earnings per share and diluted earnings per unit taking into consideration dilutive common stock and common partnership unit equivalents and dilutive convertible securities outstanding during the period.
Our common stock and common partnership unit equivalents include options to purchase shares of Common Stock, which, if exercised, would result in Aimco’s issuance of additional shares and the Aimco Operating Partnership’s issuance to Aimco of additional common partnership units equal to the number of shares purchased under the options. These equivalents also include unvested total stockholder return, or TSR, restricted stock awards that do not meet the definition of participating securities, which would result in an increase in the number of common shares of Common Stock and common partnership units outstanding equal to the number of shares that vest. The dilutive effect of these securities was 0.2 million and 0.1 million shares orand 0.3 million and 0.1 million units for the three and nine months ended September 30, 2018. The dilutive effect of these securities was 0.5 million shares or units for the threeMarch 31, 2019 and nine months ended September 30, 2017.2018, respectively. Securities with dilutive effect are included in the denominator for calculating diluted earnings per share and per unit during these periods. There were no shares and 0.2 million potential shares, and 0.4 million and 0.2 million potential units not dilutive and excluded from the denominator for calculating diluted earnings per share and per unit, respectively, for both the three and nine months ended September 30, 2018March 31, 2019 and 2017.2018.
Our time-based restricted stock awards receive dividends similar to shares of Common Stock and common partnership units prior to vesting, and our TSR long-term incentive partnership units receive a percentage of the distributions paid to common partnership units prior to vesting. These dividends and distributions are not forfeited if the awards fail to vest. Therefore, the unvested shares and units related to these awards are participating securities. The effect of participating securities is included in basic and diluted earnings per share and unit computations using the two-class method of allocating distributed and undistributed earnings when the two-class method is more dilutive than the treasury method. There were 0.2 million and 0.3 million unvested restricted participating shares and 0.2 million and 0.3 million unvested restricted participating securities as of September 30,units, for the three months ended March 31, 2019 and 2018, and 2017, respectively.

The Aimco Operating Partnership has various classes of preferred OP Units, which may be redeemed at the holders’ option. The Aimco Operating Partnership may redeem these units for cash, or at its option, shares of Common Stock. As of September 30, 2018,March 31, 2019, these preferred OP Units were potentially redeemable for approximately 2.32.0 million shares of Common Stock (based on the period end market price), or cash. The Aimco Operating Partnership has a redemption policy that requires cash settlement of redemption requests for the preferred OP Units, subject to limited exceptions. Accordingly, we have excluded these securities from earnings per share and unit computations and we expect to exclude them in future periods.
During the three months ended March 31, 2019 and 2018, we paid $2.02 and $0.38, respectively, in dividends and distributions per share and per unit. The $2.02 paid during the three months ended March 31, 2019 represents the per share and unit value of the special dividend and special distribution. The special dividend consisted of $67.1 million in cash, 4.5 million shares of Common Stock and $0.4 million of cash in paid lieu of issuing fractional shares. The special distribution consisted of $72.7 million in cash, 4.8 million common partnership units and $0.4 million of cash paid in lieu of issuing fractional units.
Note 67 — Fair Value Measurements
Recurring Fair Value Measurements
We measure at fair value on a recurring basis our investments in the securitization trust that holds certain of our property debt, which we classify as available for sale, or AFS, debt securities, whichsecurities.
These investments are classified within Level 2 of the GAAP fair value hierarchy.
Our investmentsincluded in debt securities classified as AFS are presented within otherOther assets in the accompanying condensed consolidated balance sheets. We hold several positions in the securitization trust that pay interest currently and we also hold the first loss position in the securitization trust, which accrues interest over the term of the investment. WeThese investments were acquired at a discount to face value and we are accreting the discount to the $100.9 million face value of the investments intothrough interest income using the effective interest method over the remaining expected term of the investments, which, as of September 30, 2018,March 31, 2019, was approximately 2.72.2 years. Our amortized cost basis for these investments, which represents the original cost adjusted for interest accretion less interest payments received, was $82.1$85.1 million and $77.7$83.6 million at September 30, 2018March 31, 2019 and December 31, 2017,2018, respectively. We estimated the fair value of these investments to be $87.0$90.1 million and $82.8$88.5 million at September 30, 2018March 31, 2019 and December 31, 2017,2018, respectively.
Our investments in AFS debt securities are classified within Level 2 of the GAAP fair value hierarchy. We estimate the fair value of these investments using an income and market approach with primarily observable inputs, including yields and other information regarding similar types of investments, and adjusted for certain unobservable inputs specific to these investments. The fair value of the positions that pay interest currently typically moves in an inverse relationship with movements in interest rates. The fair value of the first loss position is primarily correlated to collateral quality and demand for similar subordinate commercial mortgage-backed securities.
Prior to the July 2018 sale of our Asset Management business, we consolidated certain partnerships served by our Asset Management business. These partnerships entered into interest rate swap agreements to limit exposure to interest rate risk on the partnerships’ debt by effectively converting the interest from a variable rate to a fixed rate. We estimated the fair value of interest rate swaps as of September 30, 2017, using an income approach with primarily observable inputs, including information regarding the hedged variable cash flows and forward yield curves relating to the variable interest rates on which the hedged cash flows are based. The fair value of these interest rate swaps was classified within Level 2 of the GAAP fair value hierarchy.
The following table sets forth a summary of the changes in fair value of these interest rate swaps (in thousands):
 Nine Months Ended September 30,
 2018 2017
Beginning balance$(1,795) $(3,175)
Realized losses included in interest expense404
 73
Realized losses on derecognition of interest rate swaps1,115
 273
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss276
 1,076
Unrealized losses included in equity and partners’ capital
 (280)
Ending balance$
 $(2,033)
For the nine months ended September 30, 2018, realized losses on derecognition of interest rate swaps included in earnings represents previously unrealized losses related to interest rate swaps to which certain partnerships served by our Asset Management business were parties. Upon sale of our Asset Management business, the accumulated other comprehensive income related to the swaps was realized as a component of the gain on disposition. Please refer to Note 3 for further discussion of this transaction.
For the nine months ended September 30, 2017, realized losses on derecognition of interest rate swaps included in earnings represents previously unrealized losses related to an interest rate swap to which the partnership owning the final Napico property was a party, as described in Note 11 to our consolidated financial statements included in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K.

Fair Value Disclosures
We believe that the carrying valuesvalue of the consolidated amounts of cash and cash equivalents, receivables and payables approximateapproximated their fair valuesvalue at September 30, 2018,March 31, 2019, and December 31, 2017,2018, due to their relatively short-term nature and high probability of realization. The carrying amounts of longer term seller financing notes receivable approximated their estimated fair value at March 31, 2019 and December 31, 2018. The carrying amount of theour total indebtedness associated with our Real Estate portfolio approximated its estimated fair value at September 30, 2018March 31, 2019 and December 31, 2017.2018. We estimate the fair value of our seller financing notes and our consolidated debt using an income and market approach, including comparison of the contractual terms to observable and unobservable inputs such as market interest rate risk spreads, contractual interest rates, remaining periods to maturity, collateral quality and loan to value ratios on similarly encumbered apartment communities within our portfolio. We classify the fair value of debt and seller financing notes within Level 3 of the GAAP valuation hierarchy based on the significance of certain of the unobservable inputs used to estimate its fair value.
Note 78 — Business Segments
OurDuring the three months ended March 31, 2019, as a result of the 2018 sale of the Asset Management business, we revised the information regularly reviewed by our chief executive officer, who is our chief operating decision maker, to assess our operating performance. We have determined we have four segments: Same Store, Redevelopment and Development, Acquisition, and Other Real Estate.

Our Same Store segment includes communities that have reached a stabilized level of operations as of the beginning of a two-year comparable period and maintained it throughout the current and comparable prior year, and are not expected to be sold within 12 months. Our Redevelopment and Development segment includes apartment communities that are currently under construction that have not achieved a stabilized level of operations, and those that have been completed in recent years that have not achieved and maintained stabilized operations for both the current and comparable prior year. Our Acquisition segment includes apartment communities that we have acquired since the beginning of a two-year comparable period. Our Other Real Estate segment primarily includes apartment communities that are subject to limitations on rent increases and communities that we expect to sell within 12 months but do not yet meet the criteria to be classified as held for sale.
Our chief operating decision maker uses proportionate property net operating income to assess the operating performance of our apartment communities. Proportionate property net operating income is defined as our share of rental and other property revenue less our share of property operating expenses including real estate taxes, for consolidated apartment communities we own and manage. Beginning in 2018, wecommunities. We exclude from rental and other property revenues the amount of utilities costutility costs reimbursed by residents and reflect such amount as a reduction of the related utility expense within property operating expenses in our evaluation of segment results. In our condensed consolidated statements of operations, utility reimbursements are included in rental and other property revenues, in accordance with GAAP. The tables below have been revised to conform to this presentation.
Apartment communities are classified as either part of our Real Estate portfolio or, prior to the sale in July 2018, those owned through partnerships served by our Asset Management business. As of September 30, 2018, forMarch 31, 2019, our Same-Store segment performance evaluation,included 96 consolidated apartment communities with 28,039 apartment homes; our Redevelopment and Development segment included seven consolidated apartment communities with 3,373 apartment homes; our Acquisition segment included six consolidated apartment communities with 1,480 apartment homes; and our Other Real Estate segment included 129 consolidated15 apartment communities with 36,3391,315 apartment homes and excluded four apartment communities with 142 apartment homes that we neither manage nor consolidate.
Prior to the July 2018 sale of our Asset Management business, we consolidated certain partnerships in which we held nominal ownership positions. These partnerships own low-income housing tax credit apartment communities. Neither the results of operations nor the assets of these partnerships and apartment communities were quantitatively material; therefore, we have one reportable segment, Real Estate.homes.
The following tables present the revenues, proportionate property net operating income and income before gain on dispositionsincome tax (expense) benefit of our Real Estate segmentsegments on a proportionate basis and excluding our proportionate share of four communities with 142 apartment homes, which we do not consolidate, and amounts related to apartment communities sold as of September 30, 2018March 31, 2019 for the three and nine months ended September 30,March 31, 2019 and 2018 and 2017 (in thousands):
 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Three months ended September 30, 2018:       
Rental and other property revenues attributable to Real Estate$222,856
 $8,926
 $2,266
 $234,048
Rental and other property revenues of partnerships served by Asset Management business
 
 5,022
 5,022
Tax credit and transaction revenues
 
 3,411
 3,411
Total revenues222,856
 8,926
 10,699
 242,481
Property operating expenses attributable to Real Estate62,863
 8,405
 6,986
 78,254
Property operating expenses of partnerships served by Asset Management business
 
 2,608
 2,608
Other operating expenses not allocated to reportable
segment (3)

 
 114,665
 114,665
Total operating expenses62,863
 8,405
 124,259
 195,527
Operating income159,993
 521
 (113,560) 46,954
Other items included in income before gain on
dispositions (4)

 
 (15,122) (15,122)
Income before gain on dispositions$159,993
 $521
 $(128,682) $31,832
 Same Store Redevelopment and Development Acquisition Other Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to
Segments (2)
 Consolidated
Three months ended March 31, 2019:            
Total revenues$175,719
 $20,350
 $9,993
 $9,467
 $8,747
 $5,959
 $230,235
Property operating expenses attributable to real estate47,137
 7,290
 2,855
 3,883
 8,189
 9,830
 79,184
Other operating expenses not allocated to segments (3)
 
 
 
 
 109,637
 109,637
Total operating expenses47,137
 7,290
 2,855
 3,883
 8,189
 119,467
 188,821
Proportionate property net operating income128,582
 13,060
 7,138
 5,584
 558
 (113,508) 41,414
Other items included in income before income tax expense (4)
 
 
 
 
 252,862
 252,862
Income before income tax expense$128,582
 $13,060
 $7,138
 $5,584
 $558
 $139,354
 $294,276

 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Three months ended September 30, 2017:       
Rental and other property revenues attributable to Real Estate$203,935
 $8,155
 $21,618
 $233,708
Rental and other property revenues of partnerships served by Asset Management business
 
 18,232
 18,232
Tax credit and transaction revenues
 
 2,695
 2,695
Total revenues203,935
 8,155
 42,545
 254,635
Property operating expenses attributable to Real Estate57,592
 7,609
 16,043
 81,244
Property operating expenses of partnerships served by Asset Management business
 
 8,872
 8,872
Other operating expenses not allocated to reportable
segment (3)

 
 105,314
 105,314
Total operating expenses57,592
 7,609
 130,229
 195,430
Operating income146,343
 546
 (87,684) 59,205
Other items included in income before gain on
dispositions (4)

 
 (36,828) (36,828)
Income before gain on dispositions$146,343
 $546
 $(124,512) $22,377
 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Nine months ended September 30, 2018:       
Rental and other property revenues attributable to Real Estate$643,656
 $25,903
 $21,012
 $690,571
Rental and other property revenues of partnerships served by Asset Management business
 
 42,830
 42,830
Tax credit and transaction revenues
 
 6,987
 6,987
Total revenues643,656
 25,903
 70,829
 740,388
Property operating expenses attributable to Real Estate183,119
 24,337
 25,116
 232,572
Property operating expenses of partnerships served by Asset Management business
 
 20,865
 20,865
Other operating expenses not allocated to reportable
segment (3)

 
 337,259
 337,259
Total operating expenses183,119
 24,337
 383,240
 590,696
Operating income460,537
 1,566
 (312,411) 149,692
Other items included in income before gain on
dispositions (4)

 
 (65,560) (65,560)
Income before gain on dispositions$460,537
 $1,566
 $(377,971) $84,132

 Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Reportable
Segment (2)
 Consolidated
Nine months ended September 30, 2017:       
Rental and other property revenues attributable to Real Estate$589,349
 $35,542
 $61,748
 $686,639
Rental and other property revenues of partnerships served by Asset Management business
 
 55,327
 55,327
Tax credit and transaction revenues
 
 8,242
 8,242
Total revenues589,349
 35,542
 125,317
 750,208
Property operating expenses attributable to Real Estate169,311
 25,505
 45,138
 239,954
Property operating expenses of partnerships served by Asset Management business
 
 26,458
 26,458
Other operating expenses not allocated to reportable
segment (3)

 
 307,096
 307,096
Total operating expenses169,311
 25,505
 378,692
 573,508
Operating income420,038
 10,037
 (253,375) 176,700
Other items included in income before gain on
dispositions (4)

 
 (116,691) (116,691)
Income before gain on dispositions$420,038
 $10,037
 $(370,066) $60,009
 Same Store Redevelopment and Development Acquisition Other Real Estate 
Proportionate and Other
Adjustments (1)
 
Corporate and
Amounts Not
Allocated to Segments (2)
 Consolidated
Three months ended March 31, 2018:            
Rental and other property revenues attributable to real estate$168,606
 $18,077
 $1,580
 $9,312
 $8,236
 $19,582
 $225,393
Asset Management business rental and tax credit revenues
 
 
 
 
 22,327
 22,327
Total revenues168,606
 18,077
 1,580
 9,312
 8,236
 41,909
 247,720
Property operating expenses attributable to real estate46,755
 6,499
 523
 3,839
 7,726
 12,945
 78,287
Property operating expenses of partnerships served by Asset Management business
 
 
 
 
 9,195
 9,195
Other operating expenses not allocated to segments (3)
 
 
 
 
 106,861
 106,861
Total operating expenses46,755
 6,499
 523
 3,839
 7,726
 129,001
 194,343
Proportionate property net operating income121,851
 11,578
 1,057
 5,473
 510
 (87,092) 53,377
Other items included in income before income tax benefit (4)
 
 
 
 
 7,796
 7,796
Income before income tax benefit$121,851
 $11,578
 $1,057
 $5,473
 $510
 $(79,296) $61,173
(1)Represents adjustments for the noncontrolling interests in consolidated real estate partnerships’ share of the results of consolidated apartment communities in our Real Estate segment,segments, which are included in the related consolidated amounts, but excluded from proportionate property net operating income for our segment evaluation. Also includes the reclassification of utility reimbursements from revenues to property operating expenses for the purpose of evaluating segment results. Utility reimbursements are included in rental and other property revenues in our condensed consolidated statements of operations prepared in accordance with GAAP.
(2)Includes the operating results of apartment communities sold during the periods shown or held for sale at the end of the period, if any, and the operating results of apartment communities owned by consolidated partnerships served by our Asset Management business prior to its sale in July 2018. Corporate and Amounts Not Allocated to Reportable SegmentSegments also includes property management expenses and casualty gains and losses, which are included in consolidated property operating expenses and are not part of our segment performance measure.
(3)Other operating expenses not allocated to reportable segmentsegments consists of depreciation and amortization, general and administrative expenses and other operating expenses, which are not included in our measure of segment performance.
(4)Other items included in income before income tax (expense) benefit primarily consists of gain on dispositions primarily consists of real estate and interest and income tax benefit.expense.
The assets of our reportable segmentsegments and the consolidated assets not allocated to our segment aresegments were as follows (in thousands):
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Real Estate$5,861,647
 $5,391,816
Same Store$4,148,435
 $4,148,787
Redevelopment and Development822,348
 792,126
Acquisition546,467
 507,190
Other Real Estate326,241
 327,099
Corporate and other assets (1)323,374
 687,224
440,278
 414,802
Total consolidated assets$6,185,021
 $6,079,040
$6,283,769
 $6,190,004
(1)Includes the assets not allocated to our reportable segment,segments, primarily corporate assets and as of December 31, 2017, assets of apartment communities and the Asset Management business, which were sold as of September 30, 2018.March 31, 2019.

For the ninethree months ended September 30,March 31, 2019 and 2018, and 2017, capital additions related to our Real Estate segment totaled $241.6 million and $243.3 million, respectively.segments were as follows (in thousands):
 Three Months Ended March 31,
 2019 2018
Same Store$30,211
 $27,522
Redevelopment and Development39,048
 43,481
Acquisition3,868
 483
Other Real Estate2,771
 2,141
Total capital additions$75,898
 $73,627
Note 89 — Variable Interest Entities
Generally, a variable interest entity, or VIE, is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership is considered a VIE when the majority of the limited partners unrelated to the general partner possess neither the right to remove the general partner without cause, nor certain rights to participate in the decisions that most significantly affect the financial results of the partnership. In determining whether we are the primary

beneficiary of a VIE, we consider qualitative and quantitative factors, including, but not limited to: which activities most significantly impact the VIE’s economic performance and which party controls such activities; the amount and characteristics of our investment; the obligation or likelihood for us or other investors to provide financial support; and the similarity with and significance to our business activities and the business activities of the other investors. Significant judgments related to these determinations include estimates about the current and future fair values and performance of real estate held by these VIEs and general market conditions.
Aimco consolidates the Aimco Operating Partnership, which is a VIE for which Aimco is the primary beneficiary. Aimco, through the Aimco Operating Partnership, consolidates all VIEs for which the Aimco Operating Partnership is the primary beneficiary.
All of the VIEs we consolidatethe Aimco Operating Partnership consolidates own interests in one or more apartment communities. VIEs that own apartment communities we classify as part of our Real Estate segmentand are typically structured to generate a return for their partners through the operation and ultimate sale of the communities. We areThe Aimco Operating Partnership is the primary beneficiary in the limited partnerships in which we areit is the sole decision maker and havehas a substantial economic interest. The table below summarizes information regarding VIEs consolidated by the Aimco Operating Partnership:
As described in Note 3, we sold our Asset Management business in July 2018, including the nominal ownership interest we held in partnerships served by this business.
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Real Estate portfolio:   
VIEs with interests in apartment communities9
 14
9
 9
Apartment communities owned by VIEs9
 14
9
 9
Apartment homes in communities owned by VIEs3,592
 4,321
3,592
 3,592
Consolidated partnerships served by Asset Management business:   
VIEs with interests in apartment communities
 49
Apartment communities owned by VIEs
 37
Apartment homes in communities owned by VIEs
 5,893
Assets of the Aimco Operating Partnership’s consolidated VIEs must first be used to settle the liabilities of such consolidated VIEs. These consolidated VIEs’ creditors do not have recourse to the general credit of the Aimco Operating Partnership. Assets and liabilities of consolidated VIEs are summarized in the table below (in thousands):
September 30, 2018 December 31, 2017March 31, 2019 December 31, 2018
Real Estate portfolio:   
Assets      
Net real estate$481,390
 $529,898
$494,193
 $488,127
Cash and cash equivalents13,193
 16,111
17,508
 15,416
Restricted cash7,295
 4,798
4,868
 4,461
Other assets28,500
 3,973
Liabilities      
Non-recourse property debt secured by Real Estate communities, net339,278
 412,205
Non-recourse property debt secured by Aimco communities, net320,995
 322,685
Accrued liabilities and other17,096
 10,623
39,639
 13,576
Consolidated partnerships served by Asset Management business:   
Assets   
Real estate, net
 215,580
Cash and cash equivalents
 15,931
Restricted cash
 30,107
Liabilities   
Non-recourse property debt
 220,356
Accrued liabilities and other
 20,241


ITEM 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations
Forward Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements in certain circumstances. Certain information included in this Quarterly Report contains or may contain information that is forward-looking, within the meaning of the federal securities laws, including, without limitation, statements regarding: our ability to maintain current or meet projected occupancy, rental rate and property operating results; the effect of acquisitions, dispositions, redevelopments and developments; our ability to meet budgeted costs and timelines, and achieve budgeted rental rates related to our redevelopment and development investments; expectations regarding sales of our apartment communities and the use of proceeds thereof; and our ability to comply with debt covenants, including financial coverage ratios.
Actual results may differ materially from those described in these forward-looking statements and, in addition, will be affected by a variety of risks and factors, some of which are beyond our control, including, without limitation:
Real estate and operating risks, including fluctuations in real estate values and the general economic climate in the markets in which we operate and competition for residents in such markets; national and local economic conditions, including the pace of job growth and the level of unemployment; the amount, location and quality of competitive new housing supply; the timing of acquisitions, dispositions, redevelopments and developments; and changes in operating costs, including energy costs;
Financing risks, including the availability and cost of capital markets’ financing; the risk that our cash flows from operations may be insufficient to meet required payments of principal and interest; and the risk that our earnings may not be sufficient to maintain compliance with debt covenants;
Insurance risks, including the cost of insurance, natural disasters and severe weather such as hurricanes; and
Legal and regulatory risks, including costs associated with prosecuting or defending claims and any adverse outcomes; the terms of governmental regulations that affect us and interpretations of those regulations; and possible environmental liabilities, including costs, fines or penalties that may be incurred due to necessary remediation of contamination of apartment communities presently or previously owned by us.
In addition, our current and continuing qualification as a real estate investment trust involves the application of highly technical and complex provisions of the Internal Revenue Code and depends on our ability to meet the various requirements imposed by the Internal Revenue Code, through actual operating results, distribution levels and diversity of stock ownership.
Readers should carefully review our financial statements and the notes thereto, as well as the section entitled “Risk Factors” described in Item 1A of Apartment Investment and Management Company’s and AIMCO Properties, L.P.’s combined Annual Report on Form 10-K for the year ended December 31, 2017,2018, and the other documents we file from time to time with the Securities and Exchange Commission.
As used herein and except as the context otherwise requires, “we,” “our” and “us” refer to Apartment Investment and Management Company (which we refer to as Aimco), AIMCO Properties, L.P. (which we refer to as the Aimco Operating Partnership) and their consolidated entities, collectively.
Certain financial and operating measures found herein and used by management are not defined under accounting principles generally accepted in the United States, or GAAP. These measures are defined and reconciled to the most comparable GAAP measures under the Non-GAAP Measures heading and include: Nareit Funds From Operations, Pro forma Funds From Operations, Adjusted Funds From Operations, Free Cash Flow, Economic Income, and the measures used to compute our leverage ratios.
Executive Overview
We are focused on the ownership, management, redevelopment and limitedsome development of quality apartment communities located in several of the largest markets in the United States.
Our principal financial objective is to provide predictable and attractive returns to our equity holders. We measure our long-term total return using Economic Income, defined as Net Asset Value, or NAV, growth plus dividends. NAV is used by many investors because the value of company assets can be readily estimated, even for non-earning assets such as land or properties under development. NAV has the advantage of incorporating the investment decisions of thousands of real estate investors, enhancing comparability among companies that have differences in their accounting, and avoiding disparity that can result from application of GAAP to investment properties and various ownership structures. Some investors focus on multiples of Adjusted Funds From Operations, or AFFO, and Funds From Operations, or FFO. Our disclosure of AFFO, oura measure of current return,

complements our focus on Economic Income. We also use Pro forma Funds From Operations, or Pro forma FFO, as a secondary measure of operational performance.
Our business plan to achieve thisour principal financial objective is to:
operate our portfolio of desirable apartment homes with a high level of focus on customer selection and customer satisfaction and in an efficient manner that produces predictable and growing Free Cash Flow;
improve our portfolio of apartment communities, which is diversified both by geography and price point, by selling apartment communities with lower projected Free Cash Flow internal rates of return and investing the proceeds from such sales through capital enhancements, redevelopment, limitedsome development, and acquisitions with greater land value, higher expected rent growth, and projected Free Cash Flow internal rates of return in excess of those expected from the communities sold;
use low levels of financial leverage primarily in the form of non-recourse, long-dated, fixed-rate property debt and perpetual preferred equity, a combination whichthat reduces our refunding and re-pricing risk and which provides a hedge against increases in interest rates; and
focus intentionally on a collaborative and productive culture based on respect for others and personal responsibility.
Our business is organized around five areas of strategic focus: operational excellence; redevelopment;redevelopment and development; portfolio management; balance sheet; and team and culture.
The results from the execution of our business plan during the three months ended September 30, 2018,March 31, 2019, are further described below.
Net income attributable to common stockholders per common share increased by $3.50 during the three months ended September 30, 2018 compared to 2017, primarily due to gains on the sale of apartment communities and the Asset Management business.
AFFO per share increased $0.02 for the three months ended September 30, 2018, as compared to the same period in 2017. Real Estate operations contributed to the increase in AFFO, as follows:
$0.02 from Same Store property net operating income growth of 2.6%, driven by a 3.1% increase in revenue offset by a 4.5% increase in expenses; and
$0.06 from leasing activity related to redevelopment and recently acquired communities; offset by
($0.06) in AFFO from apartment communities sold in the last twelve months.
For the three months ended September 30, 2018, the sale of the Asset Management business is estimated to have reduced AFFO per share by $0.03.
Operational Excellence
We own and operate a portfolio of market rate apartment communities, diversified by both geography and price point, which we refer to aspoint. At March 31, 2019, our Real Estate portfolio. At September 30, 2018, our Real Estate portfolio included 133128 apartment communities with 36,48134,349 apartment homes in which we held an average ownership of approximately 99%. This portfolio was divided about two thirds by value to our “Same Store” portfolio of stabilized apartment communities and about one third by value to “Other Real Estate,” which includes recently acquired communities and communities under redevelopment or development whose long-term financial contribution is not yet stabilized.
Our property operations team produced solid results for our Real Estate portfolio for the three months ended September 30, 2018.March 31, 2019. Highlights include:
Same Store portfolio maintained average daily occupancy of 97.0% throughout the three months ended March 31, 2019, a 90 basis point increase over the same period in 2018;
Same Store net operating income growth driven byincreased 5.5% with net operating income margins of 73.2%, a 90 basis point increase over the factors discussed below;three months ended March 31, 2018; and
Same Store rent increases on renewals and new leases averaged 4.2%5.2% and 2.2%0.8%, respectively, for a weighted average increase of 3.2%;2.9%.
Our focus on efficient operations through productivity initiatives such as centralization of administrative tasks, optimization of economies of scale at the corporate level, and investment in more durable, longer-lived materials has helped us control operating expenses. These and other innovations contributed to limiting growth in controllable operating expense (defined as property expenses less taxes, insurance and utility expenses).
Average daily occupancy of 96.3%, 30 basis points higher than the same period in 2017.

Redevelopment and Development
Our second line of business is the redevelopment and limitedsome development of apartment communities, wherecommunities. Through these activities, we expect to create value by repositioning communities within our portfolio. We measure the rate and quality of financial returns by net asset valueNAV creation, an important component of Economic Income, our primary measure of long-term financial performance. We also undertake limited ground-up development when warranted by risk-adjusted investment returns, either directly or in connection with the redevelopment of an existing apartment community. When warranted, we rely on the expertise and credit of a third-party developer familiar with the local market to limit our exposure to construction risk.
We invest to earn leverage-neutral risk-adjusted returns in excess of those expected from the apartment communities sold in paired trades“paired trades” to fund the redevelopment or development. Of these two activities, we generally favor redevelopment because it permits adjustment to the scope and timing of spending to align with changing market conditions and customer preferences.
During the three months ended September 30, 2018,March 31, 2019, we invested $36.7$45.1 million in redevelopment and development. In Center City, Philadelphia, we have substantially completedWe continued phased redevelopment ofactivities in Miami at our Flamingo South Beach and Bay Parc communities, and ground-up construction

at Parc Mosaic in Boulder, Colorado, The Fremont on the vacated fourthAnschutz Medical Campus in Denver, Colorado, and final tower of Park Towne Place. During the three months ended September 30, 2018, average daily occupancy at the three completed towers was 89.1%. As of September 30, 2018, the three completed towers were 95% leased and the fourth tower was 71% leased.Elm Creek Townhomes in Elmhurst, Illinois.
We also commenced the next phasebegan a $23.7 million full redevelopment of redevelopment at our Flamingo707 Leahy in Redwood City, California. This 110-home community is located in Miami Beach. This $30 million phase includes extensive redevelopmentone of retail, leasing,the most dynamic job markets in the world and common areas, including major enhancements tobenefits from higher density than permitted under the entryway.
During the three months ended September 30, 2018, we exercised our option to acquire approximately two acres of land adjacent to our 21 Fitzsimons community, located on the University of Colorado Anschutz Medical Campus, and broke ground on the development of a 253-apartment home community.current zoning code. We expect this investment to invest approximately $87.0 million to construct the community, which is expected to be complete in the third quarter of 2020. We anticipate a stabilized net operating income yield in the low 6% range, driven by an 80% net operating income margin due to operational efficiencies derived from owning the adjacent 600 apartment homes, and a Free Cash Flow internal rate of return greater than 10%, resulting in value creation (defined as the amount by which the completed property value exceeds the pre-redevelopment value plus redevelopment spend) of more than 35%.
During the three months ended September 30, 2018, we leased 145 apartment homes at our redevelopment communities. As of September 30, 2018, our exposure to lease-up at active redevelopment and development communities was approximately 341 apartment homes, of which 62 were in the fourth tower of Park Towne Place, 213 were being constructed at Parc Mosaic, and 66 were located in three other communities.
In October 2018, we commenced construction on the development of 58 rental townhomes on approximately four acres of land contiguous to our Elm Creek apartment community in Elmhurst, Illinois. Given the success five years ago of a similar project at the community, we opportunistically purchased an adjacent land parcel in 2017. We expect to achieve a projected stabilized net operating income yield of 7% andgenerate a Free Cash Flow internal rate of return of greater than 11% on this $35 million investment. We expect initial occupancy in the first quarter of 2020 and completion of construction in the second quarter of 2020.approximately 9%.
Please see below under the Liquidity and Capital Resources – Redevelopment and Development heading for additional information regarding our redevelopment and development investment during the ninethree months ended September 30, 2018.March 31, 2019.
Portfolio Management
Our portfolio of apartment communities is diversified across “A,” “B,” and “C+” price points, averaging “B/B+” in quality, and is alsogeographically diversified across several of the largest markets in the United States. We measure the quality of our apartment communities in our Real Estate portfolio based on average rents of our apartment homes compared to local market average rents as reported by a third-party provider of commercial real estate performance and analysis. Under this rating system, we classify as “A” quality apartment communities those earning rents greater than 125% of the local market average; as “B” quality apartment communities those earning rents between 90% and 125% of the local market average; as “C+” quality apartment communities those earning rents greater than $1,100 per month, but lower than 90% of the local market average; and as “C” quality apartment communities those earning rents less than $1,100 per month and lower than 90% of the local market average. We classify as “B/B+” quality a portfolio that on average earns rents between 100% and 125% of the local market average rents where the portfolio is located.rents. Although some companies and analysts within the multifamily real estate industry use apartment community quality ratings of “A,” “B” and “C,” some of which are tied to the local market rent averages, the metrics used to classify apartment community quality as well as the period for which the local market rents are calculated may vary from company to company. Accordingly, our rating system for measuring apartment community quality is neither broadly nor consistently used in the multifamily real estate industry.

As part of our portfolio strategy, we seek to sell up to 10% of our portfolio annually and to reinvest the proceeds from such sales in accretive uses such as capital enhancements, redevelopments, occasional development,some developments, and selective acquisitions with projected Free Cash Flow internal rates of return higher than expected from the communities being sold. Through this disciplined approach to capital recycling, since 2011, we have sold $4.2 billion in lower-rated apartment communities and we have significantly increasedincrease the quality and expected growth rate of our portfolio.
 Three Months Ended
 September 30,
 2018 2017
Average revenue per Aimco apartment home (1)$2,131
 $2,005
Portfolio average rents as a percentage of local market average rents113% 112%
Percentage A (3Q 2018 average revenue per Aimco apartment home $2,809)51% 53%
Percentage B (3Q 2018 average revenue per Aimco apartment home $1,854)33% 34%
Percentage C+ (3Q 2018 average revenue per Aimco apartment home $1,702)16% 13%
(1) Represents average monthly rental and other property revenues (excluding resident reimbursement of utility cost) divided by the number of occupied apartment homes as of the end of the current period.
 Three Months Ended
 March 31,
 2019 2018
Average Revenue per Aimco apartment home (1)$2,181
 $2,052
Portfolio average rents as a percentage of local market average rents113% 113%
Percentage A (1Q 2019 average revenue per Aimco apartment home $2,839)52% 49%
Percentage B (1Q 2019 average revenue per Aimco apartment home $1,918)32% 35%
Percentage C+ (1Q 2019 average revenue per Aimco apartment home $1,727)16% 16%
(1) Represents average monthly rental and other property revenues (excluding resident reimbursement of utility cost) divided by the number of occupied apartment homes as of the end of the period.
Our average revenue per apartment home was $2,131$2,181 for the three months ended September 30, 2018,March 31, 2019, a 6% increase compared to 2017.2018. This increase is due to year-over-year growth in Same Store revenue as well as our acquisition activities, lease-up of redevelopment and acquisition communities, and the sale of communities with average monthly revenues per apartment home lower than those of the retained portfolio.
As we execute our portfolio strategy, we expect to increase average revenue per Aimco apartment home at a rate greater than market rent growth; increase Free Cash Flow margins; and maintain sufficient geographic and price point diversification to limit volatility and concentration risk.
Apartment Community Acquisitions
We evaluate potential acquisitions with an eye for unique and opportunistic investments and fund acquisitions pursuant to our strict paired trade“paired trade” discipline.
During the nine months ended September 30, 2018, we acquired five apartment communities. We acquired for $307.9 million four apartment communities in the Philadelphia area including 665 apartment homes and 153,000 square feet of office and retail space. We also acquired for $160 million Bent Tree Apartments, a 748-apartment home community in Fairfax County, Virginia.
In April 2018, we agreed to acquire six communities in the Philadelphia area, including the four that have been acquired year-to-date. During the three months ended September 30, 2018, we terminated our agreement to acquire the fifth community, The Victor, in Camden, New Jersey, due to the lack of required approvals from the City of Camden. The purchase of the sixth community is expected upon completion of construction in the first half of 2019. The rate of return expected on our investment in the Philadelphia communities are not materially impacted by the removal of The Victor.
Dispositions
During the three months ended September 30, 2018,March 31, 2019, we sold for $590made no acquisitions. In April 2019, we closed the $65.0 million our Asset Management businessacquisition of One Ardmore, the fifth and four affordablefinal community included in the Philadelphia portfolio acquisition announced in 2018. This 110-home apartment communitiescommunity is located in the Hunters Point areaheart of San Francisco. After paymentone of transaction costsPhiladelphia’s Main Line suburbs and repaymentmost desirable submarkets. We acquired One Ardmore at the completion of property-level debt encumberingconstruction and expect the Hunters Point apartment communities, net proceedscommunity to us were $512.2 million.be fully occupied before year-end.

Dispositions
During the three months ended September 30, 2018,March 31, 2019, we also sold seven apartment communities with 2,206 apartment homes for $170.4gross proceeds of $408.6 million. Proceeds, net of debt repayment and transaction costs, were $340.2 million Chestnut Hill Village, an 821-apartment home community. Three communities are located in north Philadelphia. Net proceeds to us were $165.5 million.
We used the proceeds from thesuburban Chicago, one in Alexandria, Virginia, one in Virginia Beach, Virginia, and two sales to fund 2018 acquisitions, effectively completing the paired trades. The sale of Chestnut Hill Village rebalanced our capital allocation to Philadelphia from a lower-rated apartment community in north Philadelphia to communities in the more desirable Center City and University City submarkets. The acquisition communities have expected Free Cash Flow internal rates of return approximately 400 basis points higher than those of the disposition communities.
We used excess proceedsNashville, Tennessee. Proceeds from the sales were used to repay in full our revolving credit facility and term loan, reduce property-level borrowings, andcomplete the leverage-neutral, “paired trade” funding for general corporate purposes.the Common Stock repurchases made during the three months ended December 31, 2018.

Balance Sheet
Leverage
Our leverage strategy seeks to increase financial returns while using leverage with appropriate caution. We limit risk through balance sheet structure, employing low leverage, primarily non-recourse and long-dated property debt; build financial flexibility by maintaining ample unused and available credit as well as holding properties with substantial value unencumbered by property debt; and use partners’ capital when it enhances financial returns or reduces investment risk.
Our leverage includes our share of long-term, non-recourse, property debt encumbering apartment communities, outstanding borrowings under ouron the revolving credit facility, and outstanding preferred equity.
WeFor additional information regarding our leverage, please see the discussion under the Liquidity and Capital Resources heading.
Leverage Ratios
Our target the ratio ofratios are Proportionate Debt and Preferred Equity to Adjusted EBITDA to beEBITDAre below 7.0x and we target the ratio of Adjusted EBITDAEBITDAre to Adjusted Interest Expense and Preferred Dividends to be greater than 2.5x. Our leverage ratios for the three months ended September 30, 2018,March 31, 2019, are presented below:
Leverage Ratios (1)Pro forma Leverage Ratios (2)
Proportionate Debt to Adjusted EBITDA (1)EBITDAre6.5x6.8x 7.0x
Proportionate Debt and Preferred Equity to Adjusted EBITDA (1)EBITDAre6.9x7.2x 7.2x
Adjusted EBITDAEBITDAre to Adjusted Interest Expense3.4x 3.3x
Adjusted EBITDAEBITDAre to Adjusted Interest Expense and Preferred Dividends3.1x 3.2x
(1)Adjusted EBITDAEBITDAre has been adjustedcalculated on a pro forma basis to reflect ourthe disposition of Chestnut Hill Village, the Asset Management business, and the four Hunters Pointseven apartment communities during the period as if the transactions had been closed on JulyJanuary 1, 2018.2019.
(2)Our ratio of Pro forma Proportionate Debt and Preferred Equity to Adjusted EBITDAre has been calculated on a pro forma basis to reflect the redemption of our Class A Perpetual Preferred Stock as if it had occurred using cash on hand on March 31, 2019. Our Pro forma coverage ratios have been calculated on a pro forma basis to reflect the redemption of our Class A Perpetual Preferred Stock as if it had occurred on January 1, 2019.
We calculate Adjusted EBITDAEBITDAre and Adjusted Interest Expense used in our leverage ratios based on the most recent three month amounts, annualized. As used in the ratios above, Preferred Equity represents Aimco’s preferred stock and the Aimco Operating Partnership’s preferred OP Units.
We expectIn 2019, we retitled our Proportionate DebtAdjusted EBITDA measure to Adjusted EBITDA and Proportionate Debt and Preferred EquityEBITDAre in our calculation of leverage ratios. The computation of Adjusted EBITDAre has been modified from our prior measure to Adjusted EBITDA ratios to decrease to 6.3x and 6.7x, respectively, before year-end.
As of June 30, 2018, we had $1.6 billion of property-level debt scheduled to mature between 2019 and 2021 and $125 million of 6.875% preferred stock callable in 2019. During the three months ended September 30, 2018, we repaid $120 million of the property-level debt. We intend to redeem the preferred stock in May 2019. We are addressing the majority of these remaining maturities and have rate-locked $620 million of non-recourse, property loans: $500 million of these loans are fixed-rate with a weighted average maturity of nine years and a weighted average interest rate of 4.17%, and $120 million of these loans have five-year terms and interest rates floating at a weighted average of 115 basis points over 30-day LIBOR. In connection with the expected refinancing activity, we expect to incur approximately $14 millioninclude amortization of debt extinguishment costs.issuance costs as a component of interest expense in both the computation of Adjusted Interest Expense and EBITDAre. The impact of this change is less than 0.1x to each ratio. We also began including a reconciliation of net income to earnings before interest, taxes, depreciation and amortization for real estate, or EBITDAre, as defined by Nareit. Please refer to the Leverage Ratios section below.
In October 2018, we repurchased 1.7 million shares of our common stock for a total of $75 million, at a weighted average price of $43.89 per share, approximately a 20% discount to our March 31, 2018 estimated net asset value per share.Liquidity
Our liquidity consists of cash balances and available capacity on our revolving line of credit. As of September 30, 2018,March 31, 2019, we had cash and restricted cash of $104.3$198.4 million and had the capacity to borrow $592.9up to $723.1 million underon our revolving credit facility, after consideration of $7.1$6.9 million of letters of credit backed by the facility. We use our credit facility primarily for working capital and other short-term purposes and to secure letters of credit.
We manage our financial flexibility by maintaining an investment grade rating and holding apartment communities that are unencumbered by property debt. At September 30, 2018,March 31, 2019, we held unencumbered apartment communities with an estimated fair market value of approximately $2.3$2.5 billion. In April 2019, we repaid, at par, $167.5 million of property-level debt maturing during the

three months ended September 30, 2019, increasing the estimated value of our pool of unencumbered apartment communities to by $740.0 million to $3.3 billion.
Two credit rating agencies rate our creditworthiness using different methodologies and ratios for assessing our credit, and both have rated our credit and outlook as BBB- (stable), an investment grade rating. Although some of the ratios they use are similar to those we use to measure our leverage, there are differences in our methods of calculation and therefore our leverage ratios disclosed above mayare not be indicative of the ratios that may be calculated by these agencies.
For additional information regardingEquity Capital Activities
On February 3, 2019, our leverage, please seeBoard of Directors declared a special dividend valued at $2.02 per share of Common Stock that consisted of $67.1 million in cash and 4.5 million shares of Common Stock, which was distributed on March 22, 2019. In order to facilitate comparisons with previous periods, our Board of Directors authorized a reverse split to neutralize the discussion undereffect of the Liquiditystock dividend. Taken together, the total number of shares outstanding after the stock dividend and Capital Resources heading.reverse split was unchanged by the two actions.

On April 29, 2019, our Board of Directors declared a quarterly cash dividend of $0.39 per share of Class A Common Stock for the quarter ended March 31, 2019, representing an increase of 3% compared to the dividends paid during the three months ended June 30, 2018. This dividend is payable on May 31, 2019 to stockholders of record on May 17, 2019.
Team and Culture
Our team and culture are keys to our success. Our intentional focus on a collaborative and productive culture based on respect for others and personal responsibility is reinforced by a preference for promotion from within. We focuswithin based on succession planning and talent development to produce a strong, stable team that is the enduring foundation of our success. In 2018, we were recognized by the Denver Post as a Top Work Place for the sixth consecutive year, an accomplishment shared with only seven other companies in Colorado.
Key Financial Indicators
The key financial indicators that we use in managing our business and in evaluating our operating performance are Economic Income, our measure of long-term total return, and Adjusted Funds From Operations,AFFO, our measure of current return. In addition to these indicators, we evaluate our operating performance and financial condition using: Pro forma FFO; Free Cash Flow; same storeSame Store property net operating income; proportionate property net operating income; average revenue per effective apartment home; leverage ratios; and net leverage.
Results of Operations
Because our operating results depend primarily on income from our apartment communities, the supply of and demand for apartments influences our operating results. Additionally, the level of expenses required to operate and maintain our apartment communities and the pace and price at which we redevelop, acquire and dispose of our apartment communities affect our operating results.
The following discussion and analysis of the results of our operations and financial condition should be read in conjunction with the accompanying condensed consolidated financial statements included in Item 1.
ThreeFinancial Highlights
Net income attributable to common stockholders per common share increased by $1.34 during the three months ended March 31, 2019 compared to 2018, primarily due to gains on the sale of apartment communities in 2019.
Pro forma FFO per share increased $0.02 for the three months ended March 31, 2019 compared to 2018 due to the following items:
$0.04 from Same Store property net operating income growth of 5.5%, driven by a 4.2% increase in revenue, offset by a 0.8% increase in expenses;
$0.05 from net operating income contributions from redevelopment communities and Nine2018 property acquisitions; and
$0.01 lower interest expense; offset by
($0.08) contribution eliminated following the 2018 sale of the Asset Management business and sales in 2018 and 2019 of apartment communities to fund our investment activities.

AFFO per share increased $0.01 year-over-year due to the $0.02 increase in Pro forma FFO, offset $0.01 by an acceleration of capital replacement spending as compared to the previous year. For the year ended December 31, 2019, we expect total capital replacement spending to decline year-over-year as our portfolio continues to be upgraded with our capital invested in fewer, but more valuable, properties.
Detailed Results of Operations for the Three Months Ended September 30, 2018March 31, 2019 compared to September 30, 2017March 31, 2018
Net income attributable to Aimco increased by $550.4$190.3 million and increased by $607.4 million, respectively, during the three and nine months ended September 30, 2018March 31, 2019 as compared to 2017.2018. Net income attributable to the Aimco Operating Partnership increased by $579.7$201.7 million and $639.3 million, respectively, during the three and nine months ended September 30, 2018March 31, 2019 as compared to 2017. The following discussion describes2018. Details regarding the primary drivers of the changesincreases in the net income attributable to Aimco and the Aimco Operating Partnership for the three and nine months ended September 30, 2018 compared to 2017.are described more fully below.
Property Operations
As further described under the preceding Executive Overview heading, our Real Estate portfolio consists of market rate apartment communities in whichbelow, we hold a substantial equity ownership interest.
We use proportionate property net operating income to assess the operating performance of our Real Estate Portfolio. Proportionate property net operating income reflects our share of rental and other property revenues less direct property operating expenses, including real estate taxes, for consolidated apartment communities we manage. Accordingly, the results of operations of our Real Estate segment discussed below are presented on a proportionate basis and exclude the results ofhave four apartment communities with 142 apartment homes that we neither manage nor consolidate.
Additionally, we evaluate the revenue and expense performance of our segment as adjusted for utility reimbursements. Nearly two-thirds of our utility costs are reimbursed by residents. These reimbursements are included in rental and other property revenues in our condensed consolidated statements of operations prepared in accordance with GAAP, but beginning in 2018, our segment results below reflect utility reimbursements as a reduction of the corresponding expense. We have revised the 2017 amounts to conform to this presentation.
We do not include offsite costs associated with property management or casualty-related amounts in our assessment of segment performance. Accordingly, these items are not allocated to our segment results discussed below.
Refer to Note 7 in the condensed consolidated financial statements in Item 1 for further discussion regarding our reportable segment including a reconciliation of these proportionate amounts to the corresponding amounts in our condensed consolidated statements of operations.
Real Estate Proportionate Property Net Operating Income
We classify apartment communities within our Real Estate segment assegments: Same Store, Redevelopment and Development, Acquisition and Other Real Estate. Our Same Store segment includes Same Store communities, which are those that have reached a stabilized level of operations as of the beginning of a two-year comparable period and maintained it throughout the current and comparable prior periods,year, and are not expected to be sold within 12 months. Other Real

EstateOur Redevelopment and Development segment includes apartment communities that do not meet the Same Store definition, including, but not limited to: redevelopment and development apartment communities, which are those currently under construction that have not achieved a stabilized level of operations, and those that have been completed in recent years that have not achieved and maintained stabilized operations for both the current and comparable prior year; acquisitionyear. Our Acquisition segment includes those apartment communities which are those we have acquired since the beginning of a two-year comparable period;period. Our Other Real Estate segment primarily includes apartment communities that are subject to limitations on rent increases and communities that we expect to sell within 12 months but do not yet meet the criteria to be classified as held for sale.
As of September 30, 2018,March 31, 2019, our Real EstateSame Store segment consisted of 95included 96 Same Store apartment communities with 26,367 apartment homes and 34 Other Real Estate communities with 9,97228,039 apartment homes.
From December 31, 20172018 to September 30, 2018,March 31, 2019, on a net basis, our Same Store portfoliosegment increased by three apartment communities and decreased by 192,134 apartment homes. These changes consisted of:
the addition of seven redeveloped apartment communities with 2,698 apartment homes and one developed apartment community with 91310 apartment homes, previously classified in the Redevelopment and one redeveloped apartment community with 104 apartment homes that wereDevelopment segment, now classified as Same Store upon maintaining stabilized operations for the entirety of the periods presented;
the addition of one acquired apartment community with 115463 apartment homes, that waspreviously classified in the Acquisition segment, now classified as Same Store because we have now owned it for the entirety of both periods presented;
the addition of one apartment community with 492246 apartments homes, previously classified in the Other Real Estate segment, which maintained stabilized operations for the entirety of the periods presented following a casualty event;
the addition of one apartment community with 72 apartment homes that we separated into a newly branded stand-alone community from an existing community that was previously classified in the Redevelopment and Development segment, resulting in an increase of one community with no longer expectchange in the total number of apartment homes;
the reduction of two apartment communities with 153 apartment homes for which we commenced redevelopment during the period and were reclassified to sell within 12 months;the Redevelopment and Development segment;
the reduction of one apartment community with 82178 apartment homes which wasthat we expect to sell within 12 months that is now classified in the Other Real Estate segment; and
the reduction of five apartment communities with 1,424 apartment homes that were sold as of September 30, 2018.March 31, 2019.
AsAlso as of September 30, 2018,March 31, 2019, our Redevelopment and Development segment included seven apartment communities with 3,373 apartment homes; our Acquisition segment included six apartment communities with 1,480 apartment homes; and our Other Real Estate communities included:
13 apartment communities with 6,293 apartment homes in redevelopment or development;
6 apartment communities with 1,876 apartment homes recently acquired; and
segment included 15 apartment communities with 1,8031,315 apartment homes.
We use proportionate property net operating income to assess the operating performance of our apartment communities. Proportionate property net operating income reflects our share of rental and other property revenues, excluding resident utility reimbursement, less direct property operating expenses, net of resident utility reimbursement, for consolidated apartment communities. Accordingly, the results of operations of our segments discussed below are presented on a proportionate basis and exclude the results of four apartment communities with 142 apartment homes that we do not meetconsolidate.
We do not include offsite costs associated with property management or casualty-related amounts in our assessment of segment performance. Accordingly, these items are not allocated to our segment results discussed below.

Refer to Note 8 in the definitioncondensed consolidated financial statements in Item 1 for further discussion regarding our segments, including a reconciliation of Same Store because they are either subjectthese proportionate amounts to agreements that limit the amount by which we may increase rents or have not reached or maintained a stabilized levelconsolidated rental and other property revenues and property operating expense.
The results of occupancy as of the beginning of a two-year comparable period, often due to a casualty event.
Our Real Estate segment resultsour segments for the three months ended September 30,March 31, 2019 and 2018, and 2017, as presented below, are based on the apartment community populations as of September 30, 2018.March 31, 2019.
 Three Months Ended September 30,    
(in thousands)2018 2017 $ Change % Change
Rental and other property revenues before utility reimbursements:       
Same Store communities$148,877
 $144,441
 $4,436
 3.1%
Other Real Estate communities73,979
 59,494
 14,485
 24.3%
Total222,856
 203,935
 18,921
 9.3%
Property operating expenses, net of utility reimbursements:       
Same Store communities39,034
 37,352
 1,682
 4.5%
Other Real Estate communities23,829
 20,240
 3,589
 17.7%
Total62,863
 57,592
 5,271
 9.2%
Proportionate property net operating income:       
Same Store communities109,843
 107,089
 2,754
 2.6%
Other Real Estate communities50,150
 39,254
 10,896
 27.8%
Total$159,993
 $146,343
 $13,650
 9.3%
 Three Months Ended March 31,    
(in thousands)2019 2018 $ Change % Change
Rental and other property revenues, before utility reimbursements:       
Same Store$175,719
 $168,606
 $7,113
 4.2%
Redevelopment and Development20,350
 18,077
 2,273
 12.6%
Acquisition9,993
 1,580
 8,413
 532.5%
Other Real Estate9,467
 9,312
 155
 1.7%
Total215,529
 197,575
 17,954
 9.1%
Property operating expenses, net of utility reimbursements:       
Same Store47,137
 46,755
 382
 0.8%
Redevelopment and Development7,290
 6,499
 791
 12.2%
Acquisition2,855
 523
 2,332
 445.9%
Other Real Estate3,883
 3,839
 44
 1.1%
Total61,165
 57,616
 3,549
 6.2%
Proportionate property net operating income:       
Same Store128,582
 121,851
 6,731
 5.5%
Redevelopment and Development13,060
 11,578
 1,482
 12.8%
Acquisition7,138
 1,057
 6,081
 575.3%
Other Real Estate5,584
 5,473
 111
 2.0%
Total$154,364
 $139,959
 $14,405
 10.3%
For the three months ended September 30, 2018March 31, 2019 compared to 2017,2018, our Real Estate segment’s proportionate property net operating income increased $13.7 million, or 9.3%.
Same Store proportionate property net operating income increased by $2.8$6.7 million, or 2.6%5.5%. This increase was primarily attributable to a $4.4$7.1 million, or 3.1%4.2%, increase in rental and other property revenues due to higher average revenues of $53$68 per Aimco apartment home comprised of increases in rental rates and a 30 basis point increase in average daily occupancy. Renewal

rents, which is the rent paid by an existing resident who renewed a lease compared to the rent paid prior to renewal, were up 4.2% for the three months ended September 30, 2018, and new lease rents, which is the rent paid by a new resident compared to the rent paid by the previous resident of the same apartment home, were up 2.2%, resulting in a weighted average increase of 3.2%. The increase in Same Store rental and other property revenues was partially offset by a $1.7 million, or 4.5%, increase in property operating expenses primarily due to repairs and maintenance costs and increases in real estate taxes. During the three months ended September 30, 2018 compared to 2017, controllable operating expenses, which exclude utility costs, real estate taxes and insurance, increased by $1.1 million, or 5.6%.
The proportionate property net operating income of Other Real Estate communities increased by $10.9 million, or 27.8%, for the three months ended September 30, 2018 compared to 2017 primarily due to:
an $8.4 million increase in property net operating income due to the 2018 acquisitions of Bent Tree Apartments and the four Philadelphia communities as well as the stabilization of Indigo located in Redwood City, California; and
a $2.1 million increase in property net operating income due to leasing activities at redevelopment and development communities, partially offset by decreases due to apartment homes taken out of service for redevelopment and development.
 Nine Months Ended September 30,    
(in thousands)2018 2017 $ Change % Change
Rental and other property revenues before utility reimbursements:       
Same Store communities$440,681
 $428,028
 $12,653
 3.0%
Other Real Estate communities202,975
 161,321
 41,654
 25.8%
Total643,656
 589,349
 54,307
 9.2%
Property operating expenses, net of utility reimbursements:       
Same Store communities116,453
 112,725
 3,728
 3.3%
Other Real Estate communities66,666
 56,586
 10,080
 17.8%
Total183,119
 169,311
 13,808
 8.2%
Proportionate property net operating income:       
Same Store communities324,228
 315,303
 8,925
 2.8%
Other Real Estate communities136,309
 104,735
 31,574
 30.1%
Total$460,537
 $420,038
 $40,499
 9.6%
For the nine months ended September 30, 2018 compared to 2017, our Real Estate segment’s proportionate property net operating income increased $40.5 million, or 9.6%.
Same Store proportionate property net operating income increased by $8.9 million, or 2.8%. This increase was primarily attributable to a $12.7 million, or 3.0%, increase in rental and other property revenues due to higher average revenues of approximately $50 per effective home, comprised primarily of increases in rental rates and a 3090 basis point increase in average daily occupancy. Renewal rents, which is the rent paid by an existing resident who renewed a lease compared to the rent paid prior to renewal, were up 4.6% for the nine months ended September 30, 2018,5.2%, and new lease rents, which is the rent paid by a new resident compared to the rent paid by the previous resident of the same apartment home, were up 1.7%0.8%, resulting in a weighted average increase of 3.2%2.9%. The increase in Same Store rental and other property revenues was partially offset by a $3.7$0.4 million, or 3.3%0.8%, increase in property operating expenses primarily due to increase inhigher real estate taxes and repairs and maintenance costs.partially offset by a decrease in utility expenses. During the ninethree months ended September 30, 2018March 31, 2019 compared to 2017,2018, controllable operating expenses, which exclude utility costs, real estate taxes and insurance, increaseddecreased by $1.9$0.5 million, or 3.2%2.1%.
TheRedevelopment and Development proportionate property net operating income of our Other Real Estate communities increased by $31.6$1.5 million or 30.1% for the nine months ended September 30, 2018 compared12.8%. This increase was primarily attributable to 2017, due to:
a $16.3 million increase in propertyincreased occupancy as redevelopments reach further stages of completion, partially offset by reduced net operating income due to the 2018 acquisition of Bent Tree Apartments and the four Philadelphia properties as well as the stabilization of Indigo;de-leasing communities in preparation for redevelopment.
a $6.0 million increase inAcquisition proportionate property net operating income dueincreased by $6.1 million or 575.3%. This increase was primarily attributable to leasing activitiesa full period of operating activity at redevelopment and development communities partially offset by decreases dueacquired in 2018, compared to apartment homes taken outa partial quarter of service for redevelopment; andone community’s operations during the three months ended March 31, 2018.

higherOther Real Estate proportionate property net operating income of $8.5increased by $0.1 million, from other communities,or 2.0%, for the three months ended March 31, 2019 compared to 2018 primarily the effect of ourdue to increased ownership interest in the Palazzo communities from our June 2017 reacquisition of a 47% limited partner interest in the related joint venture.lease rates.
Non-Segment Real Estate Operations
Operating income amounts not attributed to our Real Estate segmentsegments include offsite costs associated with property management, casualty losses, and the results of apartment communities sold, reported in consolidated amounts, which we do not allocate to our Real Estate segmentsegments for purposes of evaluating segment performance, (seeplease see Note 78 to the condensed consolidated financial statements in Item 1).1.

For the three months ended September 30, 2018,March 31, 2019, casualty losses totaled $0.8$2.1 million and included five claims related to fires and water and winter storm damage, with expected losses between $0.2 million and $0.4 million, and several minor claims. For the three months ended September 30, 2017, casualty losses totaled $2.8 million and included several large claims primarily related to hurricane damage.
For the nine months ended September 30,March 31, 2018, casualty losses totaled $2.4$1.1 million and included several claims primarily related to water and winter storm damage, partially offset by recovery from insurance carriers for insured losses in excess of policy limits. For the nine months ended September 30, 2017, casualty losses totaled $7.1 million and included several large claims primarily related to damage from Hurricane Irma.
Net operating income also decreased for the three and nine months ended September 30, 2018March 31, 2019 compared to 2017,2018, by $12.4$8.5 million and $25.9 million, respectively, due to apartment communities previously in our Real Estate portfolio that were sold as of September 30, 2018.
Asset Management Results
Prior to the July 2018 sale of our Asset Management business, we provided asset management and other services to certain consolidated partnerships owning apartment communities that qualify for low-income housing tax credits and are structured to provide for the pass-through of tax credits and tax deductions to their partners.
Contribution from Asset Management in our condensed consolidated financial statements included: fees and other amounts paid to us from the net operating income of partnerships served by our Asset Management business, less interest expense incurred on non-recourse property debt obligations of the partnerships; income associated with delivery of tax credits to the third-party investors in the partnerships; and transactional revenue and other income less asset management expenses, which included certain allocated offsite costs related to the operation of this business.
For the three and nine months ended September 30, 2018 compared to 2017, contribution from Asset Management decreasedprimarily due to the July 2018 sale of our Asset Management business.
Depreciation and Amortization
For the three and nine months ended September 30, 2018March 31, 2019 compared to 2017,2018, depreciation and amortization increased $3.9by $1.0 million, or 4.2%1.1%, and $17.6 million, or 6.5%, respectively, primarily due to apartment homes acquired in 2018 and renovated apartment homes placed in service after their completion, partially offset by decreases associated with apartment communities sold.
General and Administrative Expenses
For the three and nine months ended September 30, 2018,March 31, 2019, compared to 2017,2018, general and administrative expenses increased $2.0decreased by $1.0 million, or 18.5%, and $5.6 million, or 17.7%, respectively, primarily due to the timing of incentive compensation costs, legal and consulting fees, and travel expenses.8.7%.
Other Expenses, netNet
Other expenses, net includes costs associated with our risk management activities, partnership administration expenses and certain non-recurring items.
For the three and nine months ended September 30, 2018March 31, 2019 compared to 2017,2018, other expenses increased by $3.5$2.7 million, and $7.0 million, respectively, primarily due to higher legal costs associated with our ongoing litigation against Airbnb to protect our property right to select our residents and their neighbors and severance costs incurred duringan increase in ground lease rent expense for a ground lease assumed in 2018.
Interest Expense
For the three months ended September 30, 2018, offset by a reduction in other legal costs.

Interest Income
For the three and nine months ended September 30, 2018March 31, 2019 compared to 2017, interest income increased $0.7 million and $1.5 million, respectively, primarily due to interest earned on the seller financing notes received as consideration in the sale of La Jolla Cove.
Interest Expense
For the three and nine months ended September 30, 2018, compared to 2017, interest expense, which includes the amortization of debt issuance costs, decreased by $5.2$6.4 million, or 10.2%,13.4%. Lower interest on property-level debt following refinancing activity that occurred during 2018 and $2.2 million, or 1.5%, respectively. The decreases were primarily due tointerest on corporate-level debt following the 2018 repayment of our term loan, and borrowings againstpartially offset by an increase in interest on property-level debt assumed in connection with our credit facility and certain property level debt with proceeds2018 acquisition of the Philadelphia portfolio, contributed $3.1 million to the decrease. The remaining $3.3 million decrease was due to lower interest from the sale ofpartnerships served by our Asset Management business, partially offset by interest on debt assumed with the Philadelphia portfolio acquisition.which we sold in 2018.
Income Tax (Expense) Benefit
Certain of our operations, including property management and risk management, are conducted through taxable REIT subsidiaries, or TRS entities. Additionally, some of our apartment communities are owned through TRS entities.
Our income tax (expense) benefit calculated in accordance with GAAP includes: (a) income taxes associated with the income or loss of our TRS entities including tax on gains on dispositions, for which the tax consequences have been realized or will be realized in future periods; (b) low income housing tax credits generated prior to the sale of our Asset Management business and four Hunters Point apartment communities that offset REIT taxable income, primarily from retained capital gains; and (c) historic tax credits that offset income tax obligations of our TRS entities. Income taxes related to these items, (before gains on dispositions), as well as changes in valuation allowance and the establishment of incremental deferred tax items in conjunction with intercompany asset transfers (if applicable), are included in income tax (expense) benefit in our condensed consolidated statements of operations.
For the three and nine months ended September 30, 2018 compared to 2017,We incurred income tax benefit increased by $23.1expense of $3.0 million and $54.8 million, respectively. Income tax benefit increased during the three months ended March 31, 2019, compared to income tax benefit of $34.5 million during the same period in 2018, primarily due to the release of a previously established valuation allowance as a result of the sale of the Asset Management business. Income taxdecrease in benefit increased during the nine months ended September 30,recognized in 2018 primarily due to a tax benefit recognized in connection with an intercompany transfer of assets related to ourthe Asset Management business and an increase in expense related to gains on the releasesales of apartment communities owned by the valuation allowance.TRS entities.

Gain on Dispositions of Real Estate and the Asset Management Business, Inclusive
The table below summarizes dispositions of Related Income Tax
Real Estate
During the three months ended September 30, 2018, we sold for $170 million Chestnut Hill Village, an 821-apartment community located in north Philadelphia for a gain of $122.6 million, net of income tax, and gross proceeds of $170.4 million, resulting in $165.5 million in net proceeds to us. During the nine months ended September 30, 2018, we sold four apartment communities with 1,334 apartment homes for a gain of $173.2 million, net of income tax, and gross proceeds of $242.3 million, resulting in $230.1 million in net proceeds to us.
We did not sell any apartment communities from our Real Estate portfolio during the nine months ended September 30, 2017.
During the three months ended September 30, 2018, we also sold four affordable communities located in the Hunters Point area of San Francisco in connection with our sale of our Asset Management business described below.
Asset Management
During the three months ended September 30, 2018, we sold for $590.0 million our Asset Management business and our four Hunters Point communities for a gain of $448.2 million, net of income tax. After payment of transaction costs and repayment of property-level debt encumbering the Hunters Point apartment communities, net proceeds to us were $512.2 million.
Consolidated partnerships served by our Asset Management business did not sell any apartment communities during the three months ended September 30, 2017. During the nine months ended September 30, 2017, consolidated partnerships sold two apartment communities for gross proceeds of $10.9 million, resultingMarch 31, 2019 and 2018 (dollars in a gain on disposition of real estate of $2.6 million and related tax expense of $0.9 million.millions):

 Three Months Ended March 31,
 2019 2018
Number of apartment communities sold7
 3
Gross proceeds$408.6
 $71.9
Net proceeds (1)$340.2
 $64.6
Gain on disposition$291.5
 $52.6
(1)
Net proceeds are after repayment of debt, if any, net working capital settlements, payments of transaction costs and debt prepayment penalties, if applicable.
Noncontrolling Interests in Consolidated Real Estate Partnerships
Noncontrolling interests in consolidated real estate partnerships reflects the results of our consolidated real estate partnerships allocated to the owners who are not affiliated with Aimco. The amounts of income or loss of our consolidated real estate partnerships that we allocate to owners not affiliated with Aimco include their share of property management fees, interest on notes and other amounts that we charge to these partnerships.
The amount of net income allocated to noncontrolling interests was driven by two primary factors: the operations of the consolidated apartment communities and gains on the sale of apartment communities with noncontrolling interest holders, as further discussed below.
For the three months ended September 30,March 31, 2019 and 2018, and 2017, we allocated net income of $1.8$0.1 million and net loss of $0.2$6.2 million, respectively, to noncontrolling interests in consolidated real estate partnerships.
The allocation to noncontrolling interests resulting from operations of the consolidated apartment communities was $0.1 million of income for each of the three months ended September 30, 2018,March 31, 2019 and $0.2 million of loss for the three months ended September 30, 2017.March 31, 2018.
GainsWe allocated gains on the sale of apartment communities allocated to noncontrolling interests totaled $1.7totaling $6.1 million for the three months ended September 30, 2018 and there were no gains to allocate in the three months ended September 30, 2017.
For the nine months ended September 30, 2018 and 2017, we allocated net income of $8.0 million and $1.5 million, respectively, to noncontrolling interests in consolidated real estate partnerships.
The amount of net income allocated to noncontrolling interests resulting from operations of the consolidated apartment communities was $0.2 million and $1.5 million for the nine months ended September 30, 2018 and 2017, respectively. The decrease was primarily due to the June 2017 reacquisition of our limited partner’s interests in the Palazzo joint venture.
Gains on the sale of apartment communities allocated to noncontrolling interests totaled $7.8 million for the nine months ended September 30, 2018, and there were no gains to allocate in the nine months ended September 30, 2017.March 31, 2018.
Noncontrolling Interests in Aimco Operating Partnership
In Aimco’s consolidated financial statements, noncontrolling interests in the Aimco Operating Partnership reflects the resultsallocation of the Aimco Operating Partnership that are allocatedresults to the OP Unit holders. For the three and nine months ended September 30, 2018March 31, 2019 compared to 2017,2018, net income allocated to noncontrolling interests in the Aimco Operating Partnership increased $29.4 million and $31.9 million, respectively.by $11.4 million. Allocations to noncontrolling interests in the Aimco Operating Partnership fluctuate in proportion to variations in net income, as described above. The allocationoverall percentage of net income allocated to noncontrolling interests in the Aimco Operating Partnership increased due to the issuance of OP Units as partial consideration for the acquisition of apartment communities in May 2018 and the four Philadelphia properties, discussed furtherrepurchases of Common Stock completed in Note 32018. These transactions increased the noncontrolling interests’ share in the Aimco Operating Partnership relative to the condensed consolidated financial statements in Item 1.Aimco’s ownership.
Critical Accounting Policies and Estimates
We prepare our condensed consolidated financial statements in accordance with GAAP, which requires us to make estimates and assumptions. We believe that the critical accounting policies that involve our more significant judgments and estimates used in the preparation of our condensed consolidated financial statements relate to the impairment of long-lived assets and capitalized costs.
Our critical accounting policies are described in more detail in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, of Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017.2018. There have been no significant changes in our critical accounting policies from those reported in our Form 10-K and we believe that the related judgments and assessments have been consistently applied and produce financial information that fairly depicts the financial condition, results of operations, and cash flows for all periods presented.

Non-GAAP Measures
Various of the key financial indicators we use in managing our business and in evaluating our financial condition and operating performance are non-GAAP measures. Key non-GAAP measures we use are defined and described below, and for those non-GAAP measures used or disclosed within this quarterly report, reconciliations of the non-GAAP measures to the most comparable financial measure computed in accordance with GAAP are provided.

We measure our long-term total return using Economic Income, which is a non-GAAP financial measure. Economic Income represents stockholder value creation as measured by the per share change in estimated net asset value, or NAV, plus cash dividends. We believe Economic Income is important to investors as it represents a measure of the total return we have earned for our stockholders. We report and reconcile Economic Income annually. Please refer to the section entitled Management’s Discussion and Analysis of Financial Condition and Results of Operations described in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2017,2018, for more information about Economic Income.
Funds From Operations, orNareit FFO, Pro forma FFO and AFFO are non-GAAP financial measures, which are defined and further described below under the Nareit Funds From Operations, Pro forma Funds From Operations and Adjusted Funds From Operations heading.
Free Cash Flow, or FCF, as calculated for our retained portfolio, represents an apartment community’s property net operating income, or NOI, less spending for capital replacements,Capital Replacements, which represents our estimation of the capital additions made to replace capital assets consumed during our ownership period (further discussed herein under the Nareit Funds From Operations, Pro forma Funds From Operations and Adjusted Funds From Operations heading and the Liquidity and Capital Resources heading). Free Cash FlowFCF margin as calculated for apartment communities sold represents anthe sold apartment community’s NOI less $1,200 per apartment home of assumed annual capital replacement spending, as a percentage of the apartment community’s rental and other property revenues. Capital replacement spending represents a measure of the cost of capital asset usage during the period; therefore, we believe that Free Cash FlowFCF is useful to investors as a supplemental measure of apartment community performance because it takes into consideration costs incurred during the period to replace capital assets that have been consumed during our ownership.
Nareit Funds From Operations, Pro Forma Funds From Operations and Adjusted Funds From Operations
Nareit FFO is a non-GAAP financial measure that we believe, when considered with the financial statements determined in accordance with GAAP, is helpful to investors in understanding our performance because it captures features particular to real estate performance by recognizing that real estate generally appreciates over time or maintains residual value to a much greater extent than do other depreciable assets such as machinery, computers or other personal property. The National Association of Real Estate Investment Trusts, or NAREIT,Nareit, defines FFO as net income or loss computed in accordance with GAAP, excluding gains from sales of, and impairment losses recognized with respect to, depreciable property, plusexcluding: depreciation and amortization related to real estate; gains and after adjustments forlosses from sales and impairment of depreciable assets and land used in our primary business; and income taxes directly associated with a gain or loss on sale of real estate, and including our share of the FFO of unconsolidated partnerships and joint ventures. Adjustments for unconsolidated partnerships and joint ventures are calculated on the same basis to determine FFO. We calculate Nareit FFO attributable to Aimco common stockholders (diluted) by subtracting dividends on preferred stock and amounts allocated from FFO to participating securities.
In addition to Nareit FFO, we compute Pro forma FFO and AFFO, which are also non-GAAP financial measures that we believe are helpful to investors in understanding our short-term performance. Pro forma FFO represents Nareit FFO attributable to Aimco common stockholders (diluted), excluding preferred equity redemption-relatedcertain amounts and certain litigation costs. Preferred equity redemption-related amounts (gainsthat are unique or losses) are items that periodically affect our operating results and we exclude these items from our calculation ofoccur infrequently.
In computing 2019 Pro forma FFO, because such amounts are not representativewe made the following adjustments:
Straight-line rent: In 2018, we assumed a 99-year ground lease with scheduled rent increases. Due to the terms of our operating performance.the lease, GAAP rent expense will exceed cash rent payments until 2076. We areinclude the cash rent payments for this ground lease in Pro forma FFO, but exclude the incremental straight-line non-cash rent expense.
Litigation: During 2018, we were engaged in litigation with Airbnb, to protect our property right to select our residents and their neighbors.which was resolved in December 2018. Due to the unpredictable nature of these cases and associated legal costs, we exclude such costsproceedings, related amounts recognized, net of income tax effect, are excluded from Pro forma FFO.
In connection with the sale of our Asset Management business, we incurred severance costs during the nine months ended September 30, 2018. We believe these costs incurred are closely related to the sale of the business and exclude such costs from Pro forma FFO. We also excluded fromcomputing 2018 Pro forma FFO, we made the tax benefit duefollowing adjustments:
Litigation: Adjustment is described above.
Change in lease accounting: Effective January 1, 2019, we adopted accounting guidance that changed how we recognize costs incurred to the valuation allowance release, net of common noncontrolling interests in Aimco Operating Partnership and participating securities. Due to the sale of the Asset Management business, we expect to realize our deferred tax benefits. As a result,obtain resident leases. For comparability between periods, we have determined that a valuation allowancerecast 2018 as if the new standard was effective January 1, 2018. AFFO is no longer necessary. We excludedunchanged by the effect of the establishment of the valuation allowance from Pro forma FFO and, as such, have excluded the benefit from its release.new standard.

AFFO represents Pro forma FFO reduced by Capital Replacements, which represents our estimation of the actual capital additions made to replace capital assets consumed during our ownership period. When we make capital additions at an apartment community, we evaluate whether the additions extend the useful life of an asset as compared to its condition at the time we purchased the apartment community. We classify as Capital Improvements those capital additions that meet thesethis criteria, and we classify as Capital Replacements those that do not. AFFO is a key financial indicator that we use to evaluate our short-term operational performance and measure our current return. AFFO is one of the factors that we use to determine the amounts of our dividend payments.
Nareit FFO, Pro forma FFO and AFFO should not be considered alternatives to net income, as determined in accordance with GAAP, as indications of our performance. Although we use these non-GAAP measures for comparability in assessing our performance compared to other REITs, not all REITs compute these same measures and those who do may not compute them in the same manner. Additionally, our computation of AFFO is subject to our definition of Capital Replacement spending. Accordingly, there can be no assurance that our basis for computing these non-GAAP measures is comparable with that of other REITs.

For the three and nine months ended September 30,March 31, 2019 and 2018, and 2017, Aimco’s Nareit FFO, Pro forma FFO and AFFO are calculated as follows (in thousands):
Three Months Ended September 30, Nine Months Ended September 30,Three Months Ended March 31,
2018 2017 2018 20172019 2018
Net income attributable to Aimco common stockholders (1)$567,029
 $17,430
 $651,371
 $44,764
$271,568
 $81,525
Adjustments:          
Real estate depreciation and amortization, net of noncontrolling partners’ interest94,166
 89,879
 279,798
 257,409
91,374
 90,394
Gain on dispositions and other, net noncontrolling partners’ interest(624,521) (5,772) (671,761) (7,952)
Income tax adjustments related to gain on dispositions and other items (2)54,448
 733
 23,813
 2,175
Gain on dispositions and other, net of noncontrolling partners’ interest(291,473) (47,023)
Income tax adjustments related to gain on dispositions and tax-related other items (2)6,526
 (30,720)
Common noncontrolling interests in Aimco Operating Partnership’s share of above adjustments24,130
 (3,814) 18,963
 (11,447)10,249
 (557)
Amounts allocable to participating securities626
 (43) 529
 (122)316
 (15)
FFO attributable to Aimco common stockholders – diluted$115,878
 $98,413
 $302,713
 $284,827
Tax benefit due to valuation allowance release, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (3)(19,349) 
 (19,349) 
Litigation costs, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (4)2,727
 
 4,633
 
Severance costs, net of common noncontrolling interests in Aimco Operating Partnership and participating securities (5)67
 
 1,282
 
Nareit FFO attributable to Aimco common stockholders – diluted$88,560
 $93,604
Litigation, net (3)25
 349
Change in lease accounting (4)
 (707)
Straight-line rent (5)2,307
 
Pro forma FFO attributable to Aimco common stockholders – diluted$99,323
 $98,413
 $289,279
 $284,827
$90,892
 $93,246
Capital Replacements, net of common noncontrolling interests in Aimco Operating Partnership and participating securities(10,768) (14,446) (32,245) (40,752)(9,711) (9,060)
AFFO attributable to Aimco common stockholders – diluted$88,555
 $83,967
 $257,034
 $244,075
$81,181
 $84,186
          
Weighted average common shares outstanding – diluted (FFO, Pro forma FFO and AFFO) (6)156,938
 156,835
 156,836
 156,768
Total shares and dilutive share equivalents used to calculate Net income and Nareit FFO per share (6)144,445
 152,000
Adjustment to weight reverse stock split (7)3,888
 4,740
Pro forma shares and dilutive share equivalents used to calculate Pro forma FFO and AFFO per share148,333
 156,740
          
Net income attributable to Aimco per common share – diluted$3.61
 $0.11
 $4.15
 $0.29
$1.88
 $0.54
FFO per share – diluted$0.74
 $0.63
 $1.93
 $1.82
$0.61
 $0.62
Pro forma FFO per share – diluted$0.63
 $0.63
 $1.84
 $1.82
$0.61
 $0.59
AFFO per share – diluted$0.56
 $0.54
 $1.64
 $1.56
$0.55
 $0.54
(1)Represents the numerator for calculating Aimco’s earnings per common share in accordance with GAAP.
(2)Income taxes related to gain on dispositions and other items for the three months ended September 30,March 31, 2018 includes the reversal ofincluded a $33.3$33.6 million deferred tax assetbenefit related to an intercompany transfer of assets which was realized upon the sale of the Asset Management business. The remaining income tax provision of $21.1 million relates to the tax on the gain on the sale. For the nine months ended September 30, 2018, income taxes related to gain on dispositions and other items includes tax on the gain on the sale of the Asset Management business, as well as tax on the gain onwhich was sold in July 2018. Upon completion of the sale, of apartment communities during the nine months ended September 30, 2018.deferred tax asset that resulted from the intercompany transfer was realized. Accordingly, we excluded the benefit related to the reorganization from Nareit FFO.
(3)During 2018, we were engaged in litigation with Airbnb, which was resolved in December 2018. Due to the saleunpredictable nature of the Asset Management business, we expect to realize our deferredthese proceedings, related amounts recognized, net of income tax benefits. As a result, we have determined that a valuation allowance is no longer necessary. Weeffect, are excluded the effect of the establishment of the valuation allowance from Pro forma FFO and as such have excluded the benefit from its release.FFO. These costs are included in other expenses, net, in our condensed consolidated statements of operations.
(4)We are engaged in litigation with AirbnbEffective January 1, 2019, we adopted accounting guidance that changed how we recognize costs incurred to protect our property right to select our residents and their neighbors. Due to the unpredictable natureobtain resident leases. For comparability of these cases and associated legal costs, we exclude such costs from Pro forma FFO and AFFO.between periods, we have recast 2018 as if the new standard was effective January 1, 2018. AFFO is unchanged by the new standard.

(5)In connection2018, we assumed a 99-year ground lease with the sale of our Asset Management business, we incurred severance costs of $0.1 million and $1.3 million during the three and nine months ended September 30, 2018, respectively. We believe these costs are closely relatedscheduled rent increases. Due to the saleterms of the business and have excluded such costs fromlease, GAAP rent expense will exceed cash rent payments until 2076. We include the cash payments for this ground lease in Pro forma FFO, and AFFO.but exclude the incremental straight-line non-cash rent expense. The rent expense for this lease is included in other expenses, net, in our condensed consolidated statements of operations.
(6)Represents the denominator for Aimco’s earnings per common share – diluted, calculated in accordance with GAAP.
(7)During the three months ended March 31, 2019, we completed a reverse stock split and a special dividend paid primarily in stock. For stock splits, GAAP requires the restatement of weighted average shares as if the reverse stock split occurred at the beginning of the period presented; while shares issued in the special dividend are included in weighted average shares outstanding from the date issued. To minimize confusion and facilitate comparison of period-over-period Pro forma FFO and AFFO, we calculated pro forma weighted average shares for the three months ended March 31, 2019 based on the effective date of the reverse stock split and ex-dividend date for the shares issued in the special dividend, thereby eliminating the per-share impact of the GAAP treatment to Aimco’s reported Pro forma FFO and AFFO.
Refer to the Executive OverviewResults of Operations heading for discussion of our Pro forma FFO and AFFO results for 20182019 compared to 2017.their comparable periods in 2018.
Refer to the Liquidity and Capital Resources section for further information regarding our capital investing activities, including Capital Replacements.
The Aimco Operating Partnership does not separately compute or report Nareit FFO, Pro forma FFO or AFFO. However, based on Aimco’s method for allocation of such amounts to noncontrolling interests in the Aimco Operating Partnership, as well as limited differences between the amounts of net income attributable to Aimco’s common stockholders and the Aimco Operating Partnership’s

unit holders during the periods presented, Nareit FFO, Pro forma FFO and AFFO amounts on a per unit basis for the Aimco Operating Partnership would be expected to be substantially the same as the corresponding per share amounts for Aimco.
Leverage Ratios
We targetOur leverage strategy targets the ratio of Proportionate Debt and Preferred Equity to Adjusted EBITDAEBITDAre to be below 7.0x and we target the ratio of Adjusted EBITDAEBITDAre to Adjusted Interest Expense and Preferred Dividends to be greater than 2.5x. We believe these ratios, which are important measures as theybased in part on non-GAAP financial information, are commonly used by investors and analysts to assess the relative financial risk associated with balance sheets of companies within the same industry, and they are believed to be similar to measures used by rating agencies to assess entity credit quality.
We calculate Adjusted EBITDA EBITDAre and Adjusted Interest usedEBITDAre should not be considered alternatives to net income (loss) as determined in accordance with GAAP as indicators of performance. There can be no assurance that our leverage ratios based on the most recent three month amounts, annualized.method of calculating EBITDAre and Adjusted EBITDAre is comparable with that of other real estate investment trusts.
Proportionate Debt, as used in our leverage ratios, is a non-GAAP measure and includes our share of the long-term, non-recourse property debt secured by apartment communities in the Real Estate portfolio and outstanding borrowings under our revolving credit facility and term loan, reduced by our share of the cash and restricted cash of our consolidated and unconsolidated partnerships owning communities in our Real Estate portfolio, and also by our investment in the subordinate tranches of a securitization trust that holds certain of our property debt, which is essentially an investment in our own non-recourse property loans.
In ourfacility. Proportionate Debt computation, we increase our recorded debt byexcludes unamortized debt issue costs because these amounts represent cash expended in earlier periods and do not reduce our contractual obligations, and weobligations. We reduce our recorded debt by the amounts of cash and restricted cash on-hand, which are primarily restricted under the terms of our property debt agreements, assuming these amounts would be used to reduce our outstanding leverage. We further reduce our recorded debt by the value of our investment in a securitization trust that holds certain of our property debt, as our payments of principal and interest associated with such property debt will ultimately repay our investments in the trust.
We believe Proportionate Debt is useful to investors as it is a measure of our net exposure to debt obligations. Proportionate Debt, as used in our leverage ratios, is calculated as set forth in the table below.

Preferred Equity, as used in our leverage ratios, represents the redemption amounts for Aimco’s preferred stock and the Aimco Operating Partnership’s preferred OP Units. Preferred Equity, although perpetual in nature, is another component of our overall leverage. The reconciliation of total indebtedness to Proportionate Debt and Preferred Equity, as used in our leverage ratios, is as follows (in thousands):
 March 31, 2019
Total indebtedness$3,929,023
Adjustments: 
Debt issue costs related to non-recourse property debt20,430
Proportionate share adjustments related to debt obligations of consolidated and unconsolidated partnerships(9,529)
Cash and restricted cash(198,389)
Proportionate share adjustments related to cash and restricted cash held by consolidated and unconsolidated partnerships891
Securitization trust investment(90,064)
Proportionate Debt$3,652,362
Pro forma adjustment to cash (1)125,000
Pro forma Proportionate Debt$3,777,362
  
Preferred stock$125,000
Preferred OP Units101,195
Preferred Equity$226,195
Pro forma adjustment to Preferred Stock (1)(125,000)
Pro forma Preferred Equity$101,195
  
Proportionate Debt and Preferred Equity$3,878,557
  
(1) Proportionate Debt and Preferred Equity have been adjusted on a pro forma basis to reflect the redemption of the Class A Perpetual Preferred Stock as if it had occurred using cash on hand on March 31, 2019.
We calculate Adjusted EBITDA isEBITDAre used in our leverage ratios based on the most recent three month amounts, annualized. EBITDAre and Adjusted EBITDAre are non-GAAP measures, which we believe are useful to investors, creditors and rating agencies as a non-GAAP measure. We believe Adjusted EBITDA provides investors relevantsupplemental measure of our ability to incur and useful informationservice debt because itthey are recognized measures of performance by the real estate industry and allows investorsfor comparison of our credit strength to viewdifferent companies. Nareit defines EBITDAre as net income from our operations on an unleveraged basis,computed in accordance with GAAP, before the effects ofinterest expense, income taxes, depreciation and amortization expense, further adjusted for:
gains orand losses on salesthe dispositions of and depreciated property;
impairment losses relatedwrite-downs of depreciated property;
impairment write-downs of investments in unconsolidated partnerships caused by a decrease in the value of the depreciated property in such partnerships; and
adjustments to real estate, and various other items described below. Adjusted EBITDA representsreflect the Aimco’s share of the consolidated amountEBITDAre of our net income,investments in unconsolidated entities.

We define Adjusted EBITDAre as EBITDAre adjusted to exclude the effect of the following items for the reasons set forth below:
Adjusted Interest Expense, defined below,net income attributable to noncontrolling interests consolidated real estate partnerships and EBITDAre adjustments attributable to noncontrolling interests, to allow investors to compare a measure of our earnings before the effects of our capital structure and indebtedness with that of other companies in the real estate industry;
preferred dividends,the amount of interest income related to allow investors to compare a measure of our performance before the effects of our capital structure (including indebtedness) with that of other companiesinvestment in the real estate industry;
subordinated tranches in a securitization trust holding primarily Aimco property debt, as we view our interest cost on this debt to be net of any interest income taxes, to allow investors to measure our performance independent of income taxes, which may vary significantlyreceived from other companies within our industry due to leverage and tax planning strategies, among other factors;
depreciation and amortization, gains or losses on dispositions and impairment losses related to real estate, for similar reasons to those set forth in our discussion of FFO, Pro forma FFO and AFFO in the preceding section;investment; and
other items, including gains on dispositionsthe amount by which GAAP rent expense exceeds cash rents for a long-term ground lease for which expense exceeds cash payments until 2076. The excess of non-depreciable assets, as these are itemsthe GAAP rent expense over the cash payments for this lease does not reflect a current obligation that periodically affect our operations but that are not necessarily representative ofaffects our ability to service our debt obligations.debt.
WhileIn 2019, we retitled our Adjusted EBITDA is a relevant measure to Adjusted EBITDAre in our calculation of performance and is commonly used in leverage ratios, it does not represent net income as defined by GAAP, and should not be considered an alternative to net income in evaluating our performance.  Further, our definition andratios. The computation of Adjusted EBITDA may not be comparableEBITDAre has been modified from our prior measure to similar measures reportedinclude amortization of debt issuance costs as a component of interest expense in both the computation of Adjusted Interest Expense and EBITDAre. The impact of this change is less than 0.1x to each ratio. We also began including a reconciliation of net income to EBITDAre. EBITDAre is defined by other companies.Nareit and provides for an additional performance measure independent of capital structure for greater comparability between real estate investment trusts. The reconciliation of net income to EBITDAre and Adjusted EBITDAre, as used in our leverage ratios, is as follows (in thousands):

 Three Months Ended March 31, 2019
Net income$291,295
Adjustments: 
Interest expense41,409
Income tax expense2,981
Depreciation and amortization93,565
Gain on disposition of real estate(291,473)
Adjustment related to EBITDAre of unconsolidated partnerships210
EBITDAre$137,987
Net income attributable to noncontrolling interests in Aimco Operating Partnership(91)
EBITDAre adjustments attributable to noncontrolling interests(414)
Interest income received on securitization investment(2,002)
Straight-line rent adjustment2,460
Pro forma adjustment (1)(3,651)
Adjusted EBITDAre$134,289
Annualized Adjusted EBITDAre$537,156
  
(1) Adjusted EBITDAre has been calculated on a pro forma basis to reflect the disposition of seven apartment communities during the period as if the transactions had closed on January 1, 2019.
We calculated Adjusted Interest Expense, as calculatedused in our leverage ratios, based on the most recent three months, annualized. Adjusted Interest Expense is a non-GAAP measure that we believe is meaningful for investors and analysts as it presents our share of current recurring interest requirements associated with leverage. Adjusted Interest Expense represents our proportionate share of interest expense on non-recourse property debt encumbering apartment communities in the Real Estate portfolio and interest expense on our term loan and revolving credit facility borrowings. We exclude from our calculation of Adjusted Interest Expense:
debt prepayment penalties, which are items that, from time to time, affect our operating resultsinterest expense but are not representative of our scheduled interest obligations;
the amortization of debt issue costs, as these amounts have been expended in previous periods and are not representative of our current or prospective debt service requirements; and
the income we receive on our investment in the securitization trust that holds certain of our property debt, as this income is being generated indirectly from interest we pay with respect to property debt held by the trust.

Preferred Dividends represents the preferred dividends paid on Aimco’s preferred stock and the preferred distributions paid on the Aimco Operating Partnership’s preferred OP Units, exclusive of preferred equity redemption related amounts. We add Preferred Dividends to Adjusted Interest Expense for a more complete picture of the interest and dividend requirements of our leverage, inclusive of perpetual preferred equity.
ReconciliationsThe reconciliation of the most closely related GAAP measuresinterest expense to our calculations of Proportionate Debt, Preferred Equity, Adjusted EBITDA, Adjusted Interest Expense and Preferred Dividends, as used in our leverage ratios, areis as follows (in thousands):
 September 30, 2018
Total indebtedness associated with Real Estate portfolio$3,646,789
Adjustments: 
Debt issue costs related to non-recourse property debt18,488
Proportionate share adjustments related to debt obligations of consolidated and unconsolidated partnerships(9,550)
Cash and restricted cash(104,299)
Proportionate share adjustments related to cash and restricted cash held by consolidated and unconsolidated partnerships2,380
Securitization trust investment and other(87,011)
Proportionate Debt$3,466,797
  
Preferred stock$125,000
Preferred OP Units101,320
Preferred Equity226,320
Proportionate Debt and Preferred Equity$3,693,117

 Three Months Ended September 30, 2018
Net income attributable to Aimco Common Stockholders$567,029
Adjustments: 
Adjusted Interest Expense39,545
Income tax benefit(27,941)
Depreciation and amortization, net of noncontrolling interest96,349
Gain on disposition and other, inclusive of related income taxes and net of noncontrolling partners’ interests(570,384)
Preferred stock dividends2,148
Net income attributable to noncontrolling interests in Aimco Operating Partnership32,946
Pro forma adjustment (1)(6,212)
Adjusted EBITDA$133,480
  
Annualized Adjusted EBITDA$533,920
  
(1) Adjusted EBITDA has been adjusted on a pro forma basis to reflect the dispositions of Chestnut Hill Village, the Asset Management business, and the four Hunters Point communities during the period as if the transactions had been closed on July 1, 2018.
Three Months Ended March 31, 2019
Three Months Ended September 30, 2018Adjusted Interest Expense and Preferred Dividends Pro forma adjustment (1) Pro forma Adjusted Interest Expense and Preferred Dividends
Interest expense$45,492
$41,409
 $1,125
 $42,534
Interest expense related to non-recourse property debt obligations of consolidated partnerships served by our Asset Management business(854)
Interest expense attributable to Real Estate portfolio44,638
Adjustments:      
Proportionate share adjustments related to interest of consolidated and unconsolidated partnerships(102)(93) 
 (93)
Debt prepayment penalties and other non-interest items(1,410)
Amortization of debt issue costs(1,658)
Interest income earned on securitization trust investment(1,923)(2,002) 
 (2,002)
Adjusted Interest Expense$39,545
$39,314
 $1,125
 $40,439
      
Preferred stock dividends2,148
2,148
 (2,148) 
Preferred OP Unit distributions1,934
1,934
 
 1,934
Preferred Dividends4,082
4,082
 (2,148) 1,934
Adjusted Interest Expense and Preferred Dividends$43,627
$43,396
 $(1,023) $42,373
      
Annualized Adjusted Interest Expense$158,180
$157,256
   $161,756
Annualized Adjusted Interest Expense and Preferred Dividends$174,508
$173,584
   $169,492
     
(1) Pro forma Adjusted Interest Expense and Pro forma Preferred Dividends have been calculated on a pro forma basis to to reflect the redemption of the Class A Perpetual Preferred Stock as if it had occurred on January 1, 2019.(1) Pro forma Adjusted Interest Expense and Pro forma Preferred Dividends have been calculated on a pro forma basis to to reflect the redemption of the Class A Perpetual Preferred Stock as if it had occurred on January 1, 2019.
Liquidity and Capital Resources
Liquidity
Liquidity is the ability to meet present and future financial obligations. Our primary source of liquidity is cash flow from operations. Additional sources are proceeds from sales of apartment communities, proceeds from refinancings of existing property debt, borrowings under new property debt, borrowings under our revolving credit facility and proceeds from equity offerings.
Our principal uses for liquidity include normal operating activities, payments of principal and interest on outstanding property debt, capital expenditures, dividends paid to stockholders, distributions paid to noncontrolling interest partners and acquisitions of apartment communities. We use our cash and cash equivalents and our cash provided by operating activities to meet short-term liquidity needs. In the event that our cash and cash equivalents and cash provided by operating activities are not sufficient to cover our short-term liquidity needs, we have additional means, such as short-term borrowing availability and proceeds from apartment community sales and refinancings. We may use our revolving credit facility for working capital and other short-term purposes, such as funding investments on an interim basis. We expect to meet our long-term liquidity requirements, such as debt maturities,

redevelopment spending and apartment community acquisitions, through primarily non-recourse, long-term borrowings, the issuance of equity securities (including OP Units), the sale of apartment communities and cash generated from operations.
As of September 30, 2018,March 31, 2019, our primary sources of liquidity were as follows:
$58.0162.3 million in cash and cash equivalents;
$46.336.1 million of restricted cash, which consists primarily of escrows related to resident security deposits and reserves and escrows held by lenders for capital additions, property taxes and insurance; and
$592.9723.1 million of capacity to borrow under our revolving credit facility after consideration of $7.1$6.9 million of letters of credit backed by the facility.
At September 30, 2018,
As of March 31, 2019, we also held unencumbered apartment communities with an estimated fair market value of approximately $2.3$2.5 billion. In April 2019, we repaid, at par, $167.5 million of property-level debt maturing during the three months ended September 30, 2019, increasing the estimated value of our pool of unencumbered apartment communities by $740.0 million to $3.3 billion.
Leverage and Capital Resources
The availability of credit and its related effect on the overall economy may affect our liquidity and future financing activities, both through changes in interest rates and access to financing. Currently, interest rates are low compared to historical levels and many lenders are active in the market. However, any adverse changes in the lending environment could negatively affect our liquidity. We believe we have mitigated much of this exposure by reducing our short and intermediate term maturity risk through refinancing such loans with long-dated, fixed-rate property debt. However, if property financing options become unavailable for our further debt needs, we may consider alternative sources of liquidity, such as reductions in capital spending or proceeds from apartment community dispositions.
Two credit rating agencies rate our creditworthiness and both have rated our credit and outlook as BBB- (stable), an investment grade rating. Our investment grade rating would be useful in accessing capital through the sale of bonds in private or public transactions. However, our intention and historical practice has been to raise debt capital in the form of property-level, non-recourse, long-dated, fixed-rate, amortizing debt, the cost of which is generally less than that of recourse debt and the terms of which also provide for greater balance sheet safety.
As of September 30, 2018,March 31, 2019, approximately 94.2%92.9% of our leverage consisted of property-level, non-recourse, long-dated, amortizing debt. Approximately 96.4%93.3% of this property-level debt is fixed-rate, which provides a hedge against increases in interest rates, capitalization rates and inflation. The weighted average maturity of our property-level debt was 7.07.8 years. There are no unpaid principal balances maturing during the remainder of 2018, and onOn average, 12.2%7.4% of our unpaid principal balancebalances will mature each year from 20192020 through 2021.2022.
While our primary source of leverage is property-level, non-recourse, long-dated, fixed-rate, amortizing debt, we also have a credit facility with a syndicate of financial institutions. Our credit facility provides for $600.0 million of revolving loan commitments. As of September 30, 2018,March 31, 2019, we had no outstanding borrowings under$70.0 million, or 1.7% of leverage, drawn against our revolving credit facility. The revolvingfacility and the capacity to borrow an additional $723.1 million after consideration of $6.9 million of letters of credit facility provides us with an option to expandbacked by the aggregate loan commitments, subject to customary conditions, by up to $200.0 million. The credit facility also provided for a $250.0 million term loan, which we repaid in full during the three months ended September 30, 2018.facility.
As of September 30, 2018,March 31, 2019, our outstanding perpetual preferred equity represented approximately 5.8%5.4% of our total leverage. Our preferred securities areOn April 15, 2019, we called our Class A Perpetual Preferred Stock to be redeemed on May 16, 2019. Preferred Equity is perpetual in nature; however, for illustrative purposes, we computehave computed the weighted average maturity of our total leverage assuming a 40-year40 year maturity foron our preferred securities.securities other than our Class A Perpetual Preferred Stock.
The combination of non-recourse property-level debt, borrowings under our revolving credit facility and perpetual preferred equity that comprises our total leverage, reduces our refunding and re-pricing risk. The weighted average maturity for our total leverage described above was 8.98.5 years as of September 30, 2018.March 31, 2019 excluding the Class A Perpetual Preferred Stock, which we called for redemption on May 16, 2019.
Under the revolving credit facility, we have agreed to maintain a Fixed Charge Coverage ratio of 1.40x, as well as comply with other covenants customary for similar revolving credit arrangements. For the trailing twelve month period ended September 30, 2018,March 31, 2019, our Fixed Charge Coverage ratio was 2.01x,2.05x, compared to a ratio of 1.99x2.02x for the trailing twelve month period ended September 30, 2017.March 31, 2018. We expect to remain in compliance with this covenant during the next 12 months.

As of June 30, 2018, we had $1.6 billion of property-level debt scheduled to mature between 2019 and 2021 and $125 million of 6.875% preferred stock callable in 2019. During the three months ended September 30, 2018, we repaid $120 million of the property-level debt. We intend to redeem the preferred stock in May 2019. We are addressing the majority of these remaining maturities and have rate-locked $620 million of non-recourse, property loans: $500 million of these loans are fixed rate with a weighted average maturity of nine years and a weighted average interest rate of 4.17%, and $120 million of these loans have five-year terms and interest rates floating at a weighted average of 115 basis points over 30-day LIBOR. In connection with the expected refinancing activity, we expect to incur approximately $14 million of debt extinguishment costs. The completion of the refinancing activity will result in reduced refunding risk, lowered interest expense, an improved ladder of maturities, and an increase in the value of our unencumbered pool to over $3 billion, an almost 70% increase from December 31, 2017.
We like the discipline of financing our investments in real estate through the use of fixed-rate, amortizing, non-recourse property debt, as the amortization gradually reduces our leverage and reduces our refunding risk, and the fixed-rate provides a hedge against increases in interest rates, and the non-recourse feature avoids entity risk.
Changes in Cash, Cash Equivalents and Restricted Cash
The following discussion relates to changes in consolidated cash, cash equivalents and restricted cash due to operating, investing and financing activities, which are presented in our condensed consolidated statements of cash flows included in Item 1 of this report.

Operating Activities
For the ninethree months ended September 30, 2018,March 31, 2019, net cash provided by operating activities was $302.9$81.6 million. Our operating cash flow is affected primarily by rental rates, occupancy levels and operating expenses related to our portfolio of apartment communities. Cash provided by operating activities for the ninethree months ended September 30, 2018,March 31, 2019 increased by $7.8$0.3 million compared to 2017,2018, due to improved operating results of our Same Store communities and increased contribution from our redevelopment and lease-up communities, partially offset by lower net operating income associated with apartment communities and the sale of our Asset Management business.business sold in 2018.
Investing Activities
For the ninethree months ended September 30, 2018,March 31, 2019, net cash provided by investing activities of $239.1$252.4 million consisted primarily of proceeds from the disposition of the Asset Management business, four affordable apartment communities located in the Hunters Point area of San Francisco, and four conventionalseven apartment communities, partially offset by the acquisitions of Bent Tree Apartments and four apartment communities in Philadelphia and capital expenditures. Capital expenditures totaled $253.1$85.5 million and $266.6$75.6 million during the ninethree months ended September 30,March 31, 2019 and 2018, and 2017, respectively. We generally fund capital expenditures with cash provided by operating activities and cash proceeds from apartment community sales.
Further information about the acquisitions and dispositions completed during the ninethree months ended September 30, 2018,March 31, 2019 is included in Note 3 to the condensed consolidated financial statements in Item 1.
Capital additions for our Real Estate segment totaled $241.6$75.9 million and $243.3$73.6 million during the ninethree months ended September 30,March 31, 2019 and 2018, and 2017, respectively. We generally fund capital additions with cash provided by operating activities and cash proceeds from sales of apartment communities.
We categorize capital spending for communities in our Real Estate portfolio broadly into sixseven primary categories:
capital replacements, which do not increase the useful life of an asset from its original purchase condition. Capital replacements represent capital additions made to replace the portion of acquired apartment communities consumed during our period of ownership;
capital improvements, which represent capital additions made to replace the portion of acquired apartment communities consumed prior to our period of ownership;ownership, and not contemplated in our underwriting of an acquisition;
capital enhancements, which may include kitchen and bath remodeling, energy conservation projects and investments in longer-lived materials designed to reduce turnover costs and maintenance, all of which are generally lesser in scope than redevelopment additions and do not significantly disrupt property operations;
initial capital expenditures, which represent capital additions contemplated in the underwriting of our recently acquired communities;
redevelopment additions, which represent capital additions intended to enhance the value of the apartment community through the ability to generate higher average rental rates, and may include costs related to entitlement, which enhance the value of a community through increased density, and costs related to renovation of exteriors, common areas or apartment homes;

development additions, which represent construction and related capitalized costs associated with development of apartment communities; and
casualty capital additions, which represent construction and related capitalized costs incurred in connection with the restoration of an apartment community after a casualty event such as a severe snow storm, hurricane, tornado, flood or fire.
We exclude the amounts of capital spending related to apartment communities sold or classified as held for sale at the end of the period from the foregoing measures. We have also excluded from these measures indirect capitalized costs, which are not yet allocated to apartment communities with capital additions, and their related capital spending categories.

A summary of the capital spending for these categories, along with a reconciliation of the total for these categories to the capital expenditures reported in the accompanying condensed consolidated statements of cash flows for the ninethree months ended September 30,March 31, 2019 and 2018, and 2017, are presented below (in thousands):
Nine Months Ended September 30,Three Months Ended March 31,
2018 20172019 2018
Real Estate      
Capital replacements$24,222
 $29,607
$8,104
 $6,136
Capital improvements9,086
 11,857
2,311
 1,763
Capital enhancements78,516
 75,569
15,828
 17,796
Redevelopment additions94,568
 114,165
18,918
 40,181
Development additions30,229
 5,783
26,211
 5,720
Initial capital expenditures2,705
 159
Casualty capital additions4,992
 6,284
1,821
 1,872
Real Estate capital additions241,613
 243,265
75,898
 73,627
Plus: additions related to apartment communities sold or held for sale and unallocated indirect capitalized costs13,470
 17,678
Plus: additions related to consolidated asset managed communities
 814
Plus: additions related to consolidated Asset Management communities and apartment communities sold or held for sale1,755
 6,273
Consolidated capital additions255,083
 261,757
77,653
 79,900
Plus: net change in accrued capital spending(1,934) 4,866
7,893
 (4,299)
Capital expenditures per condensed consolidated statement of cash flows$253,149
 $266,623
$85,546
 $75,601
For the ninethree months ended September 30,March 31, 2019 and 2018, and 2017, we capitalized $5.7$2.1 million and $5.9$2.0 million of interest costs, respectively, and $26.8 million and $26.8$8.9 million of other direct and indirect costs respectively.for both periods.
We invested $78.5$15.8 million in capital enhancements during the ninethree months ended September 30, 2018,March 31, 2019, and we anticipate a full year investment ranging from $90$80 million to $100 million.
Redevelopment and Development
We execute redevelopments using a range of approaches. We prefer to limit risk by executing redevelopments using a phased approach, in which we renovate an apartment community in stages. Smaller phases provide us the flexibility to maintain current earnings while aligning the timing of the completed apartment homes with market demand. The following table summarizes ongoing redevelopments of this nature at September 30, 2018March 31, 2019 (dollars in millions):
 Location Apartment Homes Approved for Redevelopment Estimated/Potential Net Investment Inception-to-Date Net Investment
Bay ParcMiami, FL 60
 $24.1
 $19.7
Calhoun Beach ClubMinneapolis, MN 275
 28.7
 10.5
Flamingo South BeachMiami Beach, FL 
 39.7
 12.0
Palazzo West at The GroveLos Angeles, CA 389
 24.5
 18.7
Saybrook PointeSan Jose, CA 324
 18.8
 18.6
YorktownLombard, IL 292
 25.7
 19.9
OtherVarious 92
 12.9
 11.6
Total  1,432
 $174.4
 $111.0
 Location Apartment Homes Approved for Redevelopment Estimated Net Investment Inception-to-Date Net Investment
Bay ParcMiami, FL 60
 $24.1
 $21.8
Flamingo South BeachMiami Beach, FL 
 39.7
 21.3
Total  60
 $63.8
 $43.1

We alsoWhen smaller redevelopment phases are not possible, we may engage in redevelopment activities where an entire building or community is vacated. Additionally, we undertake ground-up development when warranted by risk-adjusted investment returns, either directly or in connection with the redevelopment of an existing apartment community. When smaller redevelopment phases are not possible, we may engage in redevelopment activities where an entire building or community is vacated. The following table summarizes our investments related to these developments and redevelopments at September 30, 2018March 31, 2019 (dollars in millions):
Location Apartment Homes Approved for Redevelopment or Development Estimated/Potential Net Investment Inception-to-Date Net Investment Stabilized Occupancy NOI StabilizationLocation Apartment Homes Approved for Redevelopment or Development Estimated Net Investment Inception-to-Date Net Investment Stabilized Occupancy NOI Stabilization
Anschutz ExpansionAurora, CO 253
 $87.0
 $4.1
  3Q 2021  4Q 2022
707 LeahyRedwood City, CA 110
 $23.7
 $2.0
 3Q 2020 4Q 2021
The FremontDenver, CO (MSA) 253
 87.0
 18.7
 3Q 2021 4Q 2022
Elm Creek TownhomesElmhurst, IL 58
 35.1
 11.3
 2Q 2021 3Q 2022
Parc Mosaic Boulder, CO 226
 117.0
 51.2
  4Q 2020  1Q 2022Boulder, CO 226
 117.0
 86.9
 4Q 2020 1Q 2022
Park Towne Place Philadelphia, PA 940
 176.0
 172.3
  1Q 2019  2Q 2020
Total 1,419
 $380.0
 $227.6
  647
 $262.8
 $118.9
 
Net investment represents the total actual or estimated investment, net of tax and other credits earned as a direct result of our redevelopment or development of the community. For phased redevelopments, potential net investment relates to the current phase of the redevelopment.
Stabilized Occupancy represents the period in which we expect to achieve stabilized occupancy, generally greater than 90%.
NOI Stabilization represents the period in which we expect the communities to achieve stabilized rents and operating costs, generally five quarters after occupancy stabilization.
Our total estimated or potential net investment in redevelopment and development is $554.4$326.6 million with a projected weighted average net operating income yield on these investments of 6.1%5.9%, assuming untrended rents. Of this total, $338.6$162.0 million has been funded. We expect to fund the remaining redevelopment and development investment through a combination of leverage and proceeds from community sales.
During the ninethree months ended September 30, 2018,March 31, 2019, we invested $124.8$45.1 million in redevelopment and development. In Center City, Philadelphia, we have substantially completedWe continued phased redevelopment ofactivities in Miami at our Flamingo South Beach and Bay Parc communities, and ground-up construction at Parc Mosaic in Boulder, Colorado, The Fremont on the vacated fourthAnschutz Medical Campus in Denver, Colorado, and final tower of Park Towne Place. During the three months ended September 30, 2018, average daily occupancy at the three completed towers was 89.1%. As of September 30, 2018, the three completed towers were 95% leased and the fourth tower was 71% leased.Elm Creek Townhomes in Elmhurst, Illinois.
We also commenced the next phase of redevelopment at our Flamingo community, located in Miami Beach. This $30began a $23.7 million phase includes extensivefull redevelopment of retail, leasing,707 Leahy in Redwood City, California. This 110-home community is well positioned, surrounded by one of the most dynamic job markets in the world, and common areas, including major enhancements to the entryway.
During the nine months ended September 30, 2018, we exercised our option to acquire approximately two acres of land adjacent to our 21 Fitzsimons apartment community, located on the University of Colorado Anschutz Medical Campus, and broke ground on the development of a 253-apartment home community.has higher density than could be built in this location under current zoning code. We expect this investment to investgenerate a Free Cash Flow internal rate of return of approximately $87 million to construct the community, which is expected to be complete in the third quarter of 2020.
During the nine months ended September 30, 2018, we leased 329 apartment homes at our redevelopment communities. As of September 30, 2018, our exposure to lease-up at active redevelopment and development communities was approximately 341 apartment homes, of which 62 were in the fourth tower of Park Towne Place, 213 were being constructed at Parc Mosaic, and 66 were located in three other communities.
We expect our total development and redevelopment spending to range from $170 million to $190 million for the year ending December 31, 2018.9%.
Financing Activities
For the ninethree months ended September 30, 2018,March 31, 2019, net cash used in financing activities of $580.3$208.2 million was primarily attributed to repayments on non-recourse property debt, the pay down of the term loan and revolving credit facility, dividends paid to common security holders, distributions paid to noncontrolling interests, and redemptions of noncontrolling interest, partially offset by proceeds from non-recourse property debt.items discussed below.
Net borrowings on our revolving credit facility primarily relate to the timing of apartment community acquisitions and dispositions and of property debt financing activities.
Proceeds from non-recourse property debt borrowings during the period consisted of the closing of two fixed-rate, amortizing, non-recourse property loans totaling $242.0 million. These loans have 10-year terms and a weighted average interest rate of 3.48%,

126 basis points more than the corresponding Treasury rate at the time of pricing. The net effect of 2018 fixed-rate property debt refinancing activities has been to lower our weighted average fixed interest rate by 16 basis points since December 31, 2017, to 4.48%, reducing prospective interest expense by more than $5.7 million.
Proceeds from non-recourse property debt borrowing during the period also included the closing of two non-recourse, variable-rate property loans totaling $118.6 million. These loans each have a 5-year term and bear interest at 30-day LIBOR plus 1.25%. The five-year terms fill a hole in our laddered maturities and, taken together with the repayment of the variable term loan, reduce our exposure to increasing short-term interest rates to approximately 3% of our leverage.
Principal payments on property loans during the period totaled $403.1$19.6 million consisting of scheduled principal amortization of $63.0 million and repayments of $340.1 million.amortization.
Net cash used in financing activities also includes $207.9$75.3 million of payments to equity holders, as further detailed in the table below.

Equity and Partners’ Capital Transactions
The following table presents the Aimco Operating Partnership’s distribution activity (including distributions paid to Aimco) during the ninethree months ended September 30, 2018March 31, 2019 (in thousands):
Cash distributions paid to holders of noncontrolling interests in consolidated real estate partnerships$7,934
Cash distributions paid by the Aimco Operating Partnership to preferred unitholders (1)12,250
$4,082
Cash distributions paid by the Aimco Operating Partnership to common unitholders (2)187,747
71,172
Total cash distributions paid by the Aimco Operating Partnership$207,931
$75,254
(1)$6.42.1 million represented distributions to Aimco, and $5.8$1.9 million represented distributions paid to holders of OP Units.
(2)$178.967.4 million represented distributions to Aimco, and $8.8$3.8 million represented distributions paid to holders of OP Units.
The following table presents Aimco’s dividend activitydividends paid to outside stock or OP Unit holders during the ninethree months ended September 30, 2018March 31, 2019 (in thousands):
Cash distributions paid to holders of noncontrolling interests in consolidated real estate partnerships$7,934
Cash distributions paid to holders of OP Units14,615
Cash dividends paid by Aimco to preferred stockholders6,445
Cash dividends paid by Aimco to common stockholders178,937
Total cash dividends and distributions paid by Aimco$207,931
During the nine months ended September 30, 2018, we repurchased $8.5 million of OP Units at an average discount of approximately 20% to our estimated net asset value per share.
Cash distributions paid to holders of OP Units$5,701
Cash dividends paid by Aimco to preferred stockholders2,148
Cash dividends paid by Aimco to common stockholders67,405
Total cash dividends and distributions paid by Aimco$75,254
Future Capital Needs
We expect to fund any future acquisitions, redevelopment, development, and other capital spending principally with proceeds from apartment community sales, short-term borrowings, debt and equity financing and operating cash flows. Our near term business plan does not contemplate the issuance of equity.

ITEM 3.Quantitative and Qualitative Disclosures About Market Risk
As of September 30, 2018, on a consolidated basis, we had approximately $133.1 millionthe date of variable-rate property debt outstanding, andthis report, there have been no borrowings under our revolving credit facility. We estimate that a changematerial changes from the market risk information provided in 30-day LIBOR of 100 basis points with constant credit risk spreads would reduce or increase net income attributable to Aimco common stockholdersAimco’s and the Aimco Operating Partnership’s common unitholders by approximately $1.3 millioncombined Annual Report on an annual basis.
At September 30, 2018, our Real Estate segment had approximately $104.3 million in cash and cash equivalents and restricted cash, a portion of which bears interest at variable rates, which may offset somewhat a change in rates on our variable-rate debt discussed above.
We estimateForm 10-K for the fair value for debt instruments as described in Note 6 to the condensed consolidated financial statements in Item 1. The estimated fair value of total indebtedness associated with the Real Estate portfolio was approximately $3.6 billion at September 30, 2018, inclusive of a $64.0 million mark-to-market asset. The mark-to-market liability atyear ended December 31, 2017 was $55.1 million.
If market rates for consolidated fixed-rate debt in our Real Estate segment were higher by 100 basis points with constant credit risk spreads, the estimated fair value of consolidated debt discussed above would decrease from $3.6 billion in the aggregate to $3.5 billion. If market rates for consolidated debt discussed above were lower by 100 basis points with constant credit risk spreads, the estimated fair value of consolidated fixed-rate debt would increase from $3.6 billion in the aggregate to $3.7 billion.2018.
ITEM 4.Controls and Procedures
Aimco
Disclosure Controls and Procedures
Aimco’s management, with the participation of Aimco’s chief executive officer and chief financial officer, has evaluated the effectiveness of Aimco’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, Aimco’s chief executive officer and chief financial officer have concluded that, as of the end of such period, Aimco’s disclosure controls and procedures are effective.
Changes in Internal Control Over Financial Reporting
There has been no change in Aimco’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the thirdfirst quarter of 20182019 that has materially affected, or is reasonably likely to materially affect, Aimco’s internal control over financial reporting.

The Aimco Operating Partnership
Disclosure Controls and Procedures
The Aimco Operating Partnership’s management, with the participation of the chief executive officer and chief financial officer of both Aimco and AIMCO-GP, Inc., the Aimco Operating Partnership’s general partner, has evaluated the effectiveness of the Aimco Operating Partnership’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange) as of the end of the period covered by this report. Based on such evaluation, the chief executive officer and chief financial officer of AIMCO-GP, Inc. have concluded that, as of the end of such period, the Aimco Operating Partnership’s disclosure controls and procedures are effective.
Changes in Internal Control Over Financial Reporting
There has been no change in the Aimco Operating Partnership’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the thirdfirst quarter of 20182019 that has materially affected, or is reasonably likely to materially affect, the Aimco Operating Partnership’s internal control over financial reporting.

PART II. OTHER INFORMATION
ITEM 1A.Risk Factors
As of the date of this report, there have been no material changes from the risk factors in Aimco’s and the Aimco Operating Partnership’s combined Annual Report on Form 10-K for the year ended December 31, 2017.2018.
ITEM 2.Unregistered Sales of Equity Securities and Use of Proceeds
Aimco
(a) Unregistered Sales of Equity Securities. Aimco did not issue any unregistered shares of Common Stock during the three months ended September 30, 2018.March 31, 2019.
(c) Repurchases of Equity Securities. SecuritiesThere were no. The following table summarizes Aimco’s share repurchases by Aimco of its common equity securities during(in thousands, except for per share data) for the three months ended September 30, 2018. Aimco’s Board of Directors has, from time to time, authorized Aimco to repurchase shares of its outstanding capital stock. As of September 30, 2018, Aimco was authorized to repurchase approximately 19.3 million additional shares. This authorization has no expiration date. These repurchases may be made from time to time in the open market or in privately negotiated transactions.March 31, 2019.
Fiscal periodTotal Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Maximum Number of Shares That May Yet Be Purchased Under Plans or Programs (1)
January 1 - January 31, 2019475
 $43.54
 475
 10,630
February 1 - February 28, 2019
 
 
 10,630
March 1 - March 31, 2019
 
 
 10,630
Total475
 $43.54
 475
  
(1)Aimco’s Board of Directors has, from time to time, authorized Aimco to repurchase shares of its outstanding capital stock. This authorization has no expiration date. These repurchases may be made from time to time in the open market or in privately negotiated transactions.
The Aimco Operating Partnership
(a) Unregistered Sales of Equity Securities. The Aimco Operating Partnership did not issue any unregistered OP Units during the three months ended September 30, 2018.March 31, 2019.
(c) Repurchases of Equity Securities. The Aimco Operating Partnership’s Partnership Agreement generally provides that after holding the common OP Units for one year, limited partners have the right to redeem their common OP Units for cash, subject to the Aimco Operating Partnership’s prior right to cause Aimco to acquire some or all of the common OP Units tendered for redemption in exchange for shares of Common Stock. Common OP Units redeemed for Common Stock are exchanged on a one-for-one basis (subject to antidilution adjustments). During the three months ended September 30, 2018,March 31, 2019, no common OP Units were redeemed in exchange for shares of Common Stock. The following table summarizes repurchases, or redemptions in exchange for cash, of the Aimco Operating Partnership’s equity securities for the three months ended September 30, 2018.March 31, 2019.




Period
Total
Number
of Units
Purchased
 
Average
Price
Paid
per Unit
 
Total Number of
Units Purchased
as Part of
Publicly
Announced
Plans or
Programs (1)
 
Maximum Number
of Units that
May Yet Be
Purchased Under the Plans or Programs (1)
July 1 - July 31, 20185,466
 $41.50
 N/A N/A
August 1 - August 31, 20186,094
 42.69
 N/A N/A
September 1 - September 30, 20188,245
 43.59
 N/A N/A
Total19,805
 $42.74
    




Fiscal period
Total Number of Units Purchased Average
Price Paid per Unit
 Total Number of Units Purchased as Part of Publicly Announced Plans or Programs (1) Maximum Number of Units That May Yet Be Purchased Under the Plans or Programs (1)
January 1 - January 31, 2019319
 $45.46
 N/A N/A
February 1 - February 28, 201917,373
 48.62
 N/A N/A
March 1 - March 31, 201934,400
 49.34
 N/A N/A
Total52,092
 $49.08
    
(1)The terms of the Aimco Operating Partnership’s Partnership Agreement do not provide for a maximum number of units that may be repurchased, and other than the express terms of its Partnership Agreement, the Aimco Operating Partnership has no publicly announced plans or programs of repurchase. However, for Aimco to repurchase shares of its Common Stock, the Aimco Operating Partnership must make a concurrent repurchase of its common partnership units held by Aimco at a price per unit that is equal to the price per share Aimco pays for its Common Stock.

Aimco and the Aimco Operating Partnership
Dividend and Distribution Payments. Our revolving credit facility includes customary covenants, including a restriction on dividends and distributions and other restricted payments, but permits dividends and distributions during any 12-month period in an aggregate amount of up to 95% of Aimco’s Funds From Operations, subject to certain non-cash adjustments, for such period or such amount as may be necessary for Aimco to maintain its REIT status.

ITEM 6.Exhibits
The following exhibits are filed with this report:
EXHIBIT NO. (1)DESCRIPTION
  Charter (Exhibit 3.1 to Aimco’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018, is incorporated herein by this reference)
Charter - Articles of Amendment (Exhibit 3.1 to Aimco’s Current Report on Form 8-K dated February 20, 2019, is incorporated herein by this reference)
  Amended and Restated Bylaws (Exhibit 3.1 to Aimco’s Current Report on Form 8-K dated January 26, 2016, is incorporated herein by this reference)
  FourthFifth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 29, 1994, as amended and restated as of February 28, 2007April 5, 2019 (Exhibit 10.1 to Aimco’s Annual Report on Form 10-K for the year ended December 31, 2006, is8-K dated April 9, 2019, in incorporated herein by this reference)
First Amendment to Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of December 31, 2007 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated December 31, 2007, is incorporated herein by this reference)
Second Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 30, 2009 (Exhibit 10.1 to Aimco’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, is incorporated herein by this reference)
Third Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of September 2, 2010 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated September 3, 2010, is incorporated herein by this reference)
Fourth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of July 26, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated July 26, 2011, is incorporated herein by this reference)
Fifth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of August 24, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated August 24, 2011, is incorporated herein by this reference)
Sixth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of December 31, 2011 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated December 31, 2011, is incorporated herein by this reference)
Seventh Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of May 13, 2014 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated May 13, 2014, is incorporated herein by this reference)
Eighth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of October 31, 2014 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated November 4, 2014, is incorporated herein by this reference)
Ninth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of August 16, 2016 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated August 16, 2016, is incorporated herein by this reference)
Tenth Amendment to the Fourth Amended and Restated Agreement of Limited Partnership of the Aimco Operating Partnership, dated as of January 31, 2017 (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated January 31, 2017, is incorporated herein by this reference)
Second Amended and Restated Senior Secured Credit Agreement, dated as of June 30, 2017, among Aimco, the Aimco Operating Partnership, AIMCO/Bethesda Holdings, Inc., the lenders party thereto and KeyBank N. A., as administrative agent, swing line lender and letter of credit issuer. (Exhibit 10.1 to Aimco’s Current Report on Form 8-K, dated June 30, 2017, is incorporated herein by this reference)
Aimco Executive Severance Policy (Exhibit 10.1 to Aimco’s Current Report on Form 8-K dated February 22, 2018, is incorporated herein by this reference)*
Aimco Second Amended and Restated 2015 Stock Award and Incentive Plan (as amended and restated effective February 22, 2018) (Exhibit A to Aimco’s Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on March 8, 2018 is incorporated herein by this reference)*
Form of Performance Vesting LTIP II Unit Agreement (2015 Stock Award and Incentive Plan) (Exhibit 10.15 to Aimco’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018, is incorporated herein by this reference)*
  Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership
  Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership


EXHIBIT NO. (1)DESCRIPTION
  Certifications of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – Aimco
  Certifications of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – the Aimco Operating Partnership
  Agreement Regarding Disclosure of Long-Term Debt Instruments – Aimco
  Agreement Regarding Disclosure of Long-Term Debt Instruments – the Aimco Operating Partnership
101  XBRL (Extensible Business Reporting Language). The following materials from Aimco’s and the Aimco Operating Partnership’s combined Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2018,March 31, 2019, tagged in XBRL: (i) condensed consolidated balance sheets; (ii) condensed consolidated statements of operations; (iii) condensed consolidated statements of comprehensive income; (iv) condensed consolidated statements of cash flows; and (v) notes to condensed consolidated financial statements.
    
(1)Schedules and supplemental materials to the exhibits have been omitted but will be provided to the Securities and Exchange Commission upon request.
*Management contract or compensatory plan or arrangement



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 
APARTMENT INVESTMENT AND
MANAGEMENT COMPANY
 
By:/s/ PAUL BELDIN
 Paul Beldin
 
Executive Vice President and Chief Financial
Officer
 (duly authorized officer and
 principal financial officer)
 

 AIMCO PROPERTIES, L.P.
 
By:AIMCO-GP, Inc., its general partner
 
By:/s/ PAUL BELDIN
 Paul Beldin
 
Executive Vice President and Chief Financial
Officer
 (duly authorized officer and
 principal financial officer)
  

Date: November 2, 2018May 3, 2019


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