EXHIBIT 1

                                350,000 Shares

                           GUARANTY BANCSHARES, INC.

                                 Common Stock

                            UNDERWRITING AGREEMENT

                                 May __, 1998

HOEFER & ARNETT INCORPORATED
353 Sacramento Street, 10th Floor
San Francisco, California  94111

Ladies and Gentlemen:

     Guaranty Bancshares, Inc., a Texas corporation (the "Company"), proposes,
subject to the terms and conditions of this Underwriting Agreement (the
"Agreement"), to issue and sell 350,000 shares (the "Shares") of common stock,
par value $1.00 per share (the "Common Stock"), of the Company to Hoefer &
Arnett Incorporated (the "Underwriter").

     The Company and the Underwriter hereby agree to the following matters with
respect to the purchase and sale of the Shares:

     SECTION 1.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company
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represents and warrants to the Underwriter that:

          a.  The Company has prepared and filed with the Securities and
     Exchange Commission (the "Commission") in accordance with the provisions of
     the Securities Act of 1933, as amended, and the rules and regulations
     promulgated thereunder (collectively, the "Act"), a registration statement
     on Form S-1 (No. 333-48959), including a preliminary prospectus, and
     certain amendments thereto, relating to the Shares.  The Company will next
     file with the Commission a final prospectus in accordance with Rules 430A
     and 424(b) under the Act.  As filed, the final prospectus shall include all
     Rule 430A Information (as defined below).  There have been or will promptly
     be delivered to the Underwriter and its counsel three signed copies of such
     registration statement and amendments, three copies of each exhibit filed
     therewith, and conformed copies of such registration statement and
     amendments (but without exhibits) and of the related preliminary prospectus
     or prospectuses and final forms of prospectus.  The term "Registration
     Statement" as used in this Agreement shall mean such registration statement
     at the time such registration statement becomes effective and, in the event
     any amendment thereto becomes effective prior to the Closing Date (as
     hereinafter defined), shall also mean such registration statement as so
     amended; provided, however, that such term shall also include all Rule 430A
     Information deemed to be included in such registration statement at the
     time such registration statement becomes effective as provided by Rule
     430A, provided that if the Company files a registration statement under the
     Act to register a portion of the Shares and relies on Rule 462(b) for such
     registration statement to

 
     become effective upon filing with the Commission (the "Rule 462
     Registration Statement"), then any reference to "Registration Statement"
     herein shall be deemed to be to both the registration statement referred to
     above (No. 333-48959) and the Rule 462 Registration Statement, as each such
     registration statement may be amended pursuant to the Act. The term
     "Prospectus" as used in this Agreement shall mean: (X) the prospectus
     relating to the Shares in the form in which it is first filed with the
     Commission pursuant to Rule 424(b) under the Act; or (Y) if no filing
     pursuant to Rule 424(b) under the Act is required, the form of final
     prospectus included in the Registration Statement at the time the
     Registration Statement becomes effective. The term "Rule 430A Information"
     as used in this Agreement shall mean information with respect to the Shares
     and the offering thereof permitted to be omitted from the Registration
     Statement when it becomes effective pursuant to Rule 430A under the Act.
     The Securities Exchange Act of 1934, as amended, and the rules and
     regulations promulgated thereunder are hereinafter collectively referred to
     as the "Exchange Act."

          b.  The Registration Statement has been declared effective by the
     Commission under the Act.  The Commission has not issued any order
     preventing or suspending the effectiveness of the Registration Statement
     and no proceedings for such purpose have been instituted or are pending, or
     to the best knowledge of the Company, are contemplated or threatened by the
     Commission.

          c.  Each preliminary prospectus when filed complied in all material
     respects with the requirements of the Act.  The Registration Statement and
     the Prospectus comply, and on the Closing Date (as hereinafter defined) the
     Prospectus will comply, in all material respects, with the provisions of
     the Act; on the Effective Date, the Registration Statement did not contain
     any untrue statement of a material fact and did not omit to state any
     material fact required to be stated therein or necessary in order to make
     the statements therein not misleading; and the Prospectus did not and, on
     the Closing Date will not, contain any untrue statements therein, in the
     light of the circumstances under which they were made, not misleading;
     provided, however, that none of the representations and warranties in this
     paragraph (c) shall apply to statements in, or omission from, the
     Registration Statement or the Prospectus made in reliance upon and in
     conformity with information concerning the Underwriter set forth herein or
     otherwise furnished in writing to the Company by or on behalf of the
     Underwriter expressly for use in the Registration Statement or the
     Prospectus.

          d.  There are no contracts or other documents of a character required
     to be described in the Registration Statement or to be filed as exhibits to
     the Registration Statement which have not been described or filed as
     required.

          e.  Arnold, Walker, Arnold & Co., P.C., who have expressed their
     opinion with respect to certain of the financial statements of the Company
     included in the Registration Statement, are independent public accountants
     within the meaning of the Act.

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          f.  The consolidated financial statements, together with the notes
     thereto, of the Company included in the Registration Statement comply in
     all material respects with the Act and present fairly in all material
     respects the consolidated financial position of the Company as of the dates
     indicated (including, without limitation, the allowance for possible loan
     losses), and the consolidated results of operations, cash flows and changes
     in financial position of the Company for the respective periods covered
     thereby are in conformity with generally accepted accounting principles
     applied on a consistent basis throughout the periods involved, except to
     the extent disclosed therein.

          g.  The Company has been duly organized and is validly existing as a
     corporation in good standing under the laws of the State of Texas, with
     full corporate power and authority to own, lease and operate its properties
     and conduct its business as described in the Prospectus.  The Company is
     duly qualified to do business as a foreign corporation and is in good
     standing in each jurisdiction in which the ownership or leasing of its
     properties or the conduct of its business requires such qualification,
     except in any such case in which the failure to so qualify or be in good
     standing would not have a material adverse effect upon the business of the
     Company, and no proceeding of which the Company has knowledge has been
     instituted in any such jurisdiction, revoking, limiting or curtailing, or
     seeking to revoke, limit or curtail, such power and authority or
     qualification.

          h.  The Company does not own any capital stock of, or other securities
     evidencing an equity interest in, any corporation, partnership or other
     entity, other than as set forth in this paragraph.  Guaranty Financial
     Corp., Inc., a Delaware corporation, is a wholly owned subsidiary of the
     Company.  Guaranty Financial Corp., Inc., in turn, owns 100 percent of the
     outstanding shares of Guaranty Bank, Mt. Pleasant, Texas, a Texas
     corporation and state bank (the "Bank"), and Guaranty Company, Inc., an
     inactive Texas corporation.  The Bank, in turn, owns 90 percent of the
     outstanding shares of Guaranty Leasing Co., Inc., a Texas corporation, a
     16.67 percent membership interest in BSC Securities L.C., a Texas limited
     company, and a 16.67 percent membership interest in IBS, L.C., a Texas
     limited company.  For purposes of this Agreement, Guaranty Financial Corp.,
     Inc., the Bank, Guaranty Company, Inc., Guaranty Leasing Company, Inc., BSC
     Securities L.C. and IBS, L.C. are subsidiaries of the Company.  There are
     no persons or entities which have the right to acquire any shares of
     capital stock of the Bank or the Company's other subsidiaries.

          i.  The Bank has been duly organized and is validly existing as a
     Texas corporation in good standing under the laws of the State of Texas,
     with full corporate power and authority to own, lease and operate its
     properties and conduct its business as described in the Prospectus.  The
     Bank is duly qualified to do business as a foreign corporation and is in
     good standing in each jurisdiction in which the ownership or leasing of its
     properties or the conduct of its business requires such qualification,
     except in any such case in which the failure to so qualify or be in good
     standing would not have a material adverse effect upon its business, and no
     proceeding of which the Company has

                                      -3-

 
     knowledge has been instituted in any such jurisdiction revoking, limiting
     or curtailing, or seeking to revoke, limit or curtail, such power and
     authority or qualification.

          j.  The Company's subsidiaries other than the Bank have been duly
     organized and are validly existing as Texas corporations or Texas limited
     companies, as the case may be, in good standing under the laws of the State
     of Texas, with full power and authority to own, lease and operate their
     respective properties and to conduct their respective businesses as
     described in the Prospectus.  The Company's subsidiaries other than the
     Bank are duly qualified to do business as foreign entities and are in good
     standing in each jurisdiction in which the ownership or leasing of their
     respective properties or the conduct of their respective businesses
     requires such qualification, except in any such case in which the failure
     to so qualify or be in good standing does not have a material adverse
     affect on their respective businesses, and no proceeding of which the
     Company has knowledge has been instituted in any such jurisdiction
     revoking, limiting or curtailing, or seeking to revoke, limit or curtail,
     such power and authority or qualification.

          k.  The Company has an authorized and outstanding capitalization as
     set forth in the Prospectus under the actual column under the caption
     "Capitalization."  All of the issued and outstanding shares of Common Stock
     have been duly authorized, validly issued and are fully paid and non-
     assessable and are free of preemptive or other similar rights and except as
     set forth in the Prospectus, there are no options, agreements, contracts or
     other rights in existence to acquire from the Company any shares of Common
     Stock.

          l.  The Shares to be sold by the Company pursuant to this Agreement
     have been duly authorized and, when issued and paid for in accordance with
     this Agreement, will be validly issued, fully paid and non-assessable; the
     holders of the Shares will not be subject to personal liability by reason
     of being such holders; except as set forth in the Prospectus, there are no
     holders of securities of the Company having rights, contractual or
     otherwise, to registration thereof or preemptive rights to purchase Common
     Stock; all corporate actions required to be taken for the authorization,
     issuance, and sale of the Shares have been validly and sufficiently taken.

          m.  Since the respective dates as of which information is given in the
     Registration Statement and the Prospectus, except as otherwise stated or
     contemplated therein, there has not been (A) any material adverse change in
     the condition (financial or otherwise), earnings, affairs or business of
     the Company and its subsidiaries, taken as a whole, whether or not arising
     in the ordinary course of business; (B) any material transaction entered
     into, or any material liability or obligation incurred, by the Company or
     its subsidiaries other than in the ordinary course of business; (C) any
     change in the capital stock or material increase in the short-term debt or
     long-term debt of the Company or its subsidiaries; or (D) any dividend or
     distribution of any kind declared, paid or made by the Company, except
     dividends paid in accordance with past practices, on its capital stock.

                                      -4-

 
          n.  The Company and its subsidiaries have good and marketable title to
     all properties and assets reflected as owned in the financial statements
     hereinabove described (or described elsewhere in the Prospectus), free and
     clear of all liens, charges, encumbrances or restrictions of any kind,
     except such as are referred to in such financial statements or the
     Prospectus or which are not material to the Company and its subsidiaries;
     all of the leases and subleases material to their respective businesses or
     under which the Company and its subsidiaries hold properties are in full
     force and effect; and the Company has received no notice of any material
     claim of any sort which has been asserted by anyone adverse to the rights
     of the Company or its subsidiaries as owner or as lessee or sublessee under
     any of the leases or subleases mentioned above, or affecting or questioning
     the rights of the Company or its subsidiaries to the continued possession
     of the leased or subleased premises under any such lease or sublease.

          o.  The Company and its subsidiaries are not in default in the
     observance of any provision of their respective articles of incorporation
     or association, bylaws or other governing documents, in each case as
     amended, or in the performance or observance of any obligation, agreement,
     covenant or condition contained in any contract, indenture, mortgage, loan
     agreement, note, lease or other instrument to which any of them is a party
     or by which any of them or any of their properties may be bound, the effect
     of which could be materially adverse to the condition (financial or
     otherwise), earnings, affairs or business of the Company or its
     subsidiaries.

          p.  The execution, delivery and performance of this Agreement, the
     issuance and delivery of the Shares, the consummation of the transactions
     contemplated herein and in the Registration Statement have been duly
     authorized by all necessary corporate action and will not result in any
     violation of the articles of incorporation or bylaws of the Company, and
     will not conflict with or result in a breach of any of the terms or
     provisions of, or constitute a default under, or result in the creation or
     imposition of any lien, charge, encumbrance or restriction of any kind upon
     any property or assets of the Company under any material contract,
     indenture, mortgage, loan agreement, note, lease or other agreement or
     instrument to which the Company is a party or by which the Company or its
     properties is bound, or any existing applicable law, rule, regulation, or
     any judgment, order or decree of any government, governmental
     instrumentality or court, domestic or foreign, known to the Company and
     having jurisdiction over the Company or its properties.  No approval,
     authorization or consent of any court, regulatory body, administrative
     agency or other governmental body having jurisdiction over the Company is
     required in connection with the sale of the Shares to the Underwriter,
     except such as may be required under the Act, state securities or Blue Sky
     laws or from the clearance of the offering with the National Association of
     Securities Dealers, Inc. (the "NASD").

          q.  Other than the Notices of Beginning of Administrative Proceeding
     received from the Internal Revenue Service relating to the Company's
     leveraged leasing activities ("IRS Notices"), there is no action, suit or
     proceeding before or by any court or governmental agency or body, domestic
     or foreign, or any arbitrator or arbitration panel,

                                      -5-

 
     now pending or, to the knowledge of the Company, threatened against or
     affecting the Company or its subsidiaries which could reasonably be
     expected to result in any material adverse change to the condition
     (financial or otherwise), earnings, affairs or business of the Company or
     its subsidiaries; and there is no decree, judgment or order of any kind
     known to the Company in existence against or restraining the Company or its
     subsidiaries or their officers, employees or directors, from taking any
     actions of any kind in connection with their respective businesses.

          r.  The Company and its subsidiaries own or possess or have obtained
     all material governmental licenses, permits, consents, orders, approvals
     and other authorizations necessary to lease or own, as the case may be, and
     to operate their properties and to carry on their businesses as presently
     conducted, and the Company has received no notice of proceedings related to
     revocation or modification of any such licenses, permits, consents, orders,
     approvals or authorizations which individually or in the aggregate, if the
     subject of an unfavorable ruling or finding, would be materially adverse to
     the condition (financial or otherwise), earnings, affairs or business of
     the Company or its subsidiaries.

          s.  The conduct of the business of the Company and its subsidiaries is
     in compliance with all applicable federal, state and local laws and
     regulations that regulate or are concerned in any way with the business of
     the Company or the Bank, where the effect of the failure to comply would be
     materially adverse to the condition (financial or otherwise), earnings,
     affairs or business of the Company or the Bank.

          t.  The Company and its subsidiaries own or possess, or can acquire on
     reasonable terms, all right, title and interest in or to, or have duly
     licensed from third parties, all patents, trademarks, service marks,
     copyrights, trade names, trade secrets and other proprietary rights ("Trade
     Rights") material to the business now or proposed to be conducted by them,
     and the Company has received no notice of, and has no knowledge of,
     infringement of or conflict with asserted rights of others with respect to
     any such Trade Rights which, individually or in the aggregate, if the
     subject of an unfavorable decision, ruling or finding, would be materially
     adverse to the condition (financial or otherwise), earnings, affairs or
     business of the Company or its subsidiaries.

          u.  The Company has filed all tax returns required to be filed and has
     paid all taxes which were payable pursuant to said returns or any
     assessments with respect thereto, other than any tax returns being
     contested in good faith or which are not material to the Company and other
     than the IRS Notices there is no tax deficiency that has been, or to the
     knowledge of the Company might be, asserted against the Company or any of
     its properties or assets that would or could reasonably be expected to have
     a material adverse affect upon the condition (financial or otherwise) or
     results of operations of the Company.

          v.  This Agreement has been duly executed and delivered by the
     Company.

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          w.   The Company has filed a registration statement pursuant to
     Section 12(g) of the Exchange Act to register its Common Stock thereunder,
     has filed an application to list the Shares for quotation on The Nasdaq
     National Market and has received notification that the Shares have been
     authorized for quotation on The Nasdaq National Market, subject to notice
     of issuance or sale, as the case may be.

          x.   The Company and its subsidiaries are not and do not intend to
     conduct their business in a manner in which any of them would become an
     "investment company" as defined in Section 3(a) of the Investment Company
     Act of 1940, as amended (the "Investment Company Act").

          y.   All offers and sales of the Company's capital stock prior to the
     date hereof were at all relevant times either exempt from the registration
     requirements of the Act and the registration requirements of all applicable
     state securities or blue sky laws or were duly registered in accordance
     with the provisions thereof.

          z.   The Company has not taken and will not take, directly or
     indirectly, any action designed to cause or result in, or that has
     constituted or might reasonably be expected to constitute, the
     stabilization or manipulation of the price of any security of the Company.

          aa.  Except as disclosed in the Registration Statement and the
     Prospectus, no transaction has occurred between or among the Company or its
     subsidiaries, on the one hand, and any of the Company's officers or
     directors or any affiliate or affiliates of any such officer or director,
     on the other hand, that is required to be so disclosed, including, but not
     limited to, any outstanding loans, advances or guaranties of indebtedness
     by the Company or its subsidiaries to or for the benefit of any affiliates
     of the Company, or any of the officers or directors of the Company, or any
     family member of any of them.

          bb.  The Company and its subsidiaries have not, directly or
     indirectly, at any time (A) made any contributions to any candidate for
     foreign political office, or if made, failed to disclose fully any such
     contribution made in violation of law, or (B) made any payment to any
     state, federal or foreign governmental officer or official, or other person
     charged with similar public or quasi-public duties, other than payments or
     contributions required or allowed by applicable law.  The Company's
     internal accounting controls and procedures are sufficient to cause the
     Company to comply in all material respects with the Foreign Corrupt
     Practices Act of 1977, as amended.

          cc.  The Company and its subsidiaries do no business with the
     government of Cuba or with any person or entity located in Cuba, which
     would require compliance with Florida Statute Section 517.075.

          dd.  The Company and the Bank are in compliance with all applicable
     federal and state laws and regulations that regulate the business of
     banking, including, without

                                      -7-

 
     limitation, the National Bank Act, the Federal Deposit Insurance Act, the
     Bank Holding Company Act, the Federal Reserve Act and all other applicable
     laws and regulations where the failure to comply would have a material and
     adverse effect on the financial condition, earnings or business of the
     Company or the Bank.

     SECTION 2.      AGREEMENT TO SELL AND PURCHASE.  On the basis of the
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representations, warranties and agreements of the Company herein contained and
subject to the terms and conditions set forth herein, (i) the Company hereby
agrees to issue and sell to the Underwriter and the Underwriter agrees to
purchase the Shares.  The purchase price per share to be paid by the Underwriter
to the Company shall be $___________, except for shares the purchaser of which
was introduced to the Underwriter by the Company and who is listed on Exhibit A
hereto as amended from time to time as agreed by the Company and the
Underwriter, for which the price shall be $_________ per share.

     SECTION 3.     DELIVERY OF AND PAYMENT FOR THE SHARES.
                    -------------------------------------- 

          a.  Delivery to the Underwriter of the Shares shall be made against
     payment therefor at 9:00 a.m., San Francisco, California, time, on the
     fourth full business day following the date of this Agreement (the "Closing
     Date") at the offices of Hoefer & Arnett Incorporated, 353 Sacramento
     Street, 10th Floor, San Francisco, California 94111. The place of the
     closing and the Closing Date may be varied by agreement between the
     Underwriter and the Company.

          b.  Certificates for the Shares shall be registered in such names and
     in such denominations as the Underwriter shall request upon at least 48
     hours prior notice to the Company preceding the Closing Date.  Such
     certificates shall be made available to the Underwriter at the office of
     The Depository Trust Company, New York, New York, for inspection and
     packaging not later than at least 24 hours prior to the Closing Date.  The
     certificates evidencing the Shares shall be delivered to the Underwriter on
     the Closing Date, with any transfer taxes thereon duly paid by the Company
     for the Underwriter, against payment of the purchase price therefor by
     certified or official company check or checks payable in Chicago Clearing
     House (next day) funds to the order of the Company, or, at the option of
     the Company, by wire transfer in federal (same day) funds for which the
     Company will pay one day's interest at the broker call rate as reported in
     The Wall Street Journal on the business day immediately prior to the
     Closing Date, subject to change by written agreement of the Company and the
     Underwriter.

     SECTION 4.     AGREEMENTS OF THE COMPANY.  The Company covenants and agrees
                    -------------------------                                   
with the Underwriter that:

          a.  The Company will advise the Underwriter promptly and, if requested
     by the Underwriter, will confirm such advice in writing, (i) when any post-
     effective amendment to the Registration Statement is filed or becomes
     effective, and of the filing of any final prospectus or supplement or
     amendment to the Prospectus, (ii) of any request by

                                      -8-

 
     the Commission for amendments or supplements to the Registration Statement
     or Prospectus or any Preliminary Prospectus or for additional information,
     (iii) of the issuance by the Commission of any stop order suspending the
     effectiveness of the Registration Statement or of the suspension of
     qualification of the Shares for offering or sale in any jurisdiction, or
     the initiation or contemplation of any proceeding for such purposes, and
     (iv) within the period of time referred to in paragraph (g) below, of the
     happening of any event which makes any statement made in the Registration
     Statement or Prospectus (as then amended or supplemented) untrue in any
     material respect or which requires the making of any additions to or
     changes in the Registration Statement or Prospectus (as then amended or
     supplemented) in order to make the statements therein not misleading or to
     amend or supplement the Prospectus to comply with the Act or any other law.
     If at any time the Commission shall issue any stop order suspending the
     effectiveness of the Registration Statement, the Company will make every
     reasonable effort to obtain the withdrawal of such order at the earliest
     possible moment. If the Company elects not to rely on Rule 434, the Company
     will provide the Underwriter with copies of the form of Prospectus in such
     numbers as the Underwriter may reasonably request and file or transmit for
     filing with the Commission such Prospectus in accordance with Rule 424(b)
     of the Act, by the close of business in San Francisco on the business day
     immediately succeeding the date hereof.

          b.  The Company will prepare and file with the Commission, in
     accordance with Rule 430A and Rule 424(b) under the Act, copies of an
     amended Prospectus, or, if required by Rule 430A, a post-effective
     amendment to the Registration Statement (including an amended Prospectus)
     containing all information so omitted.

          c.  The Company will, prior to the Closing Date, not incur any
     material liability or obligation, direct or contingent, or enter into any
     material transaction, other than in the ordinary course of business, except
     as contemplated in the Prospectus.

          d.  The Company will not file any amendment to the Registration
     Statement or make any amendment or supplement to the Prospectus of which
     the Underwriter shall not previously have been advised or to which the
     Underwriter shall promptly after being so advised reasonably object in
     writing.

          e.  On the effective date of the Registration Statement and thereafter
     from time to time during such period as in the opinion of counsel for the
     Underwriter a prospectus relating to the Shares is required by law to be
     delivered in connection with offers or sales of the Shares by the
     Underwriter or a dealer, the Company will deliver to the Underwriter and
     each dealer, without charge, as many copies of the Registration Statement
     and the Prospectus (and of any amendment or supplement to such documents)
     as they may reasonably request.  During such period, if any event occurs
     which in the judgment of the Company, or in the opinion of counsel for the
     Underwriter, should be set forth in the Prospectus in order to ensure that
     no part of the Prospectus includes an untrue statement of a material fact
     or omits to state a material fact necessary in order to make the

                                      -9-

 
     statements therein, in the light of the circumstances at the time the
     Prospectus is delivered to a purchaser, not misleading, the Company will
     forthwith prepare, submit to the Underwriter, file with the Commission and
     deliver, without charge to the dealers (whose names and addresses will be
     furnished by the Underwriter to the Company) to whom shares have been sold
     by the Underwriter or to other dealers any amendments or supplements to the
     Prospectus so that the statements in the Prospectus, as so amended or
     supplemented, will comply with the standards set forth in this sentence.
     The Company consents to the use of such Prospectus (and of any amendments
     or supplements thereto) in accordance with the provisions of the Act and
     with the securities or Blue Sky laws of the jurisdictions described in the
     preliminary Blue Sky memorandum in which the Shares are lawfully offered by
     the Underwriter and by all dealers to whom Shares may be sold, both in
     connection with the offering or sale of the Shares and for such period of
     time thereafter as the Prospectus is required by law to be delivered in
     connection therewith. In case the Underwriter is required to deliver a
     Prospectus (and any amendment or supplement thereto) more than nine months
     after the first date upon which the Shares are offered to the public, the
     Company will, upon request, but at the expense of the Underwriter, promptly
     prepare and furnish the Underwriter with reasonable quantities of a
     Prospectus complying with Section 10(a)(3) of the Act.

          f.  The Company will cooperate with the Underwriter and counsel for
     the Underwriter in connection with the registration or qualification of the
     Shares for offer and sale by the Underwriter and by dealers under the
     securities or Blue Sky laws of such jurisdictions as the Underwriter may
     designate, will continue such registrations or qualifications in effect so
     long as reasonably required for the distribution of the Shares and will
     file such consents to service of process or other documents as may be
     necessary in order to effect such registration or qualification; provided
     that in no event shall the Company be obligated to (i) qualify to do
     business in any jurisdiction where it is not now so qualified, (ii) file
     any general consent to service of process, or (iii) take any action that
     would subject it to income taxation in any jurisdiction where it is not so
     qualified.

          g.  For a period of five years after the date hereof:

              i.   the Company will furnish to the Underwriter (A) as soon as
          available a copy of each report of the Company of general interest
          mailed to any class of its security holders (B) copies of all periodic
          reports and current reports filed with the Commission on Forms 10-K,
          10-Q and 8-K and any amendment thereto or such other similar forms as
          may be designated by the Commission, and (C) from time to time, such
          other information concerning the Company as the Underwriter may
          reasonably request;

              ii.  if at any time during such five-year period the Company
          shall cease filing with the Commission the periodic reports and
          current reports on Forms 10-K, 10-Q and 8-K or other similar forms
          referred to in clause (g)(i) above, the Company will forward to its
          shareholders generally and the Underwriter (A) as

                                      -10-

 
          soon as practicable after the end of each fiscal year copies of a
          balance sheet and statements of income and retained earnings of the
          Company as of the end of and for such fiscal year, certified by
          independent public accountants, and (B) as soon as practicable after
          the end of each quarterly fiscal period, except for the last quarterly
          fiscal period in each fiscal year, a summary statement (which need not
          be certified) of income and retained earnings of the Company for such
          period, which shall also be made publicly available; and

               iii.  the Company will furnish to the Underwriter and to the
          NASD, and by issuance of a press release, on the date of declaration,
          notice of all dividends, including the amount and medium of payment,
          the record date (which shall be not less than ten days subsequent to
          the declaration date) and the payment date (which shall be not less
          than ten days subsequent to the record date).

          h.  The Company will make generally available to its security holders
     an earnings statement of the Company, which need not be audited, covering a
     12-month period commencing after the effective date of the Registration
     Statement and ending not later than 15 months thereafter, as soon as
     practicable after the end of such period, which earnings statement shall
     satisfy the provisions of Section 11(a) of the Act and the rules and
     regulations promulgated thereunder (including Rule 158).

          i.  The Company will not sell, contract to sell or otherwise dispose
     of any Common Stock or rights to purchase Common Stock for a period of 120
     days after the date of the Prospectus without the prior written consent of
     the Underwriter (other than the issuance of shares of Common Stock pursuant
     to the Company's stock option plan(s) and certain other employment benefit
     arrangements of the Company in an aggregate amount not to exceed 5 percent
     of the Shares).  The Company will also use its best efforts to obtain
     similar agreements from each of its executive officers and directors and
     all persons who own at least 5 percent of the Common Stock after the
     consummation of the Offering.

          j.  The Company will apply the net proceeds from the sale of the
     Shares to be sold by it under this Agreement for the purposes set forth in
     the Prospectus under the caption "Use of Proceeds."

     SECTION 5.      PAYMENT OF EXPENSES.
                     ------------------- 

          a.  Except as provided in Sections 4(e) and 5(b) hereof, and in the
     following sentence, the Underwriter will bear its own expenses including
     expenses of Underwriter's counsel.  All other expenses relating to the
     offering circular and underwriting documents, including all printing
     expenses; all filing fees with the SEC and the National Association of
     Securities Dealers, Inc.; and all filing fees and expenses for
     qualification under the blue sky laws of states designated by the
     Underwriter will be borne by the Company.  The

                                      -11-

 
     Company will be responsible for the fees and expenses of its counsel and
     accountants and its own travel and roadshow expenses.

          b.  In the event that the Underwriter determines to terminate the
     proposed offering because (i) an adverse development shall occur which
     materially and adversely affects the business, financial condition, assets,
     results of operations or prospects of the Company and the Bank, considered
     as one enterprise; and (ii) the Prospectus does not comply with all
     applicable laws and regulations; then the Company shall reimburse the
     Underwriter for accountable out-of-pocket expenses, which shall include
     reasonable travel and related expenses and reasonable fees and
     disbursements of counsel, but shall not include hourly or other fixed rates
     for time spent on the project by representatives or staff of Underwriter or
     reimbursement of Underwriter for normal office expenses incurred in the
     ordinary course of business.  In the event that the Company determines to
     terminate its proposed offering because the offering price is not
     satisfactory to the Company or if the Underwriter determines to terminate
     the proposed offering for reasons other than as stated in the preceding
     sentence, the Underwriter will be responsible for its own out-of-pocket
     expenses.  Any such termination shall be without liability of any party to
     any other party except that the provisions of this section, Section 4(e),
     Section 5(a) and Section 7 shall at all times be effective and shall apply.

     SECTION 6.      CONDITION OF THE UNDERWRITER'S OBLIGATIONS.  The obligation
                     ------------------------------------------                 
of the Underwriter to purchase the Shares hereunder is subject to the following
conditions:

          a.  The price of the Shares and any price-related or other information
     previously omitted from the effective Registration Statement pursuant to
     such Rule 430A shall have been transmitted to the Commission for filing
     pursuant to Rule 424(b) within the prescribed time period and on or prior
     to the Closing Date, the Company shall have provided evidence satisfactory
     to the Underwriter of such timely filing, or a post-effective amendment
     providing such information shall have been promptly filed and declared
     effective in accordance with the requirements of Rule 430A.  No stop order
     suspending the effectiveness of the Registration Statement shall have been
     issued and no proceedings for the purpose shall have been instituted or
     shall be pending or, to the knowledge of' the Company, shall be
     contemplated by the Commission and there shall not have come to the
     attention of the Underwriter any facts that would cause them to believe
     that the Prospectus, at the time it was required to be delivered to
     purchasers of the Shares, contained any untrue statement of material fact
     or omitted to state any material fact necessary in order to make the
     statements therein, in light of the circumstances under which there were
     made, not misleading.

          b.  Subsequent to the effective date of the Registration Statement (i)
     there shall not have occurred any material adverse change, or any
     development involving a material adverse change, in or affecting
     particularly the business or properties of the Company or its subsidiaries,
     taken as a whole, not contemplated by the Prospectus, which, in the
     Underwriter's opinion, would materially adversely affect the market for the
     Shares

                                      -12-

 
     or make it impracticable or inadvisable to proceed with the offering or the
     delivery of the Shares, as contemplated herein and in the Prospectus, or to
     attempt to enforce contracts for the purchase of Shares, and (ii) the
     business and operations of the Company shall not have been adversely
     affected by strike, fire, flood, accident or other calamity (whether or not
     insured).

          c.  The Underwriter shall have received from Bracewell & Patterson,
     L.L.P., counsel for the Company, a favorable opinion dated the Closing Date
     and satisfactory to the Underwriter and the Underwriter's counsel to the
     effect that:

              i.   The Company and the Bank have been duly incorporated and are
          validly existing as corporations in good standing under the laws of
          the State of Texas, both with full power and authority to own, lease
          and operate their respective properties and conduct their business as
          described in the Prospectus. The Company and the Bank are duly
          qualified to do business and are in good standing in each jurisdiction
          where the ownership or leasing of their properties or the conduct of
          their business requires such qualification, except in any such case
          where the failure to so qualify or be in good standing would not
          reasonably be expected to have a material adverse effect on the
          condition (financial or otherwise) or results of operations of the
          Company.

              ii.  The issued and outstanding capital stock of the Company has
          been duly authorized and validly issued and is fully paid and non-
          assessable and free of preemptive rights.

              iii. The authorized capitalization of the Company consists
          entirely of 15,000,000 shares of preferred stock, $5.00 par value
          ("Preferred Stock"), issuable in series, 165,456 of which are issued
          and outstanding as Series A Preferred Stock, and 50,000,000 shares of
          Common Stock, of which 2,548,280 were outstanding on the date of the
          Prospectus, all of which conform to the descriptions thereof in the
          Prospectus.

              iv.  The form of certificate for the Shares to be delivered
          hereunder is in due and proper form, and when duly countersigned by
          the Company's transfer agent and delivered to the Underwriter against
          payment of the agreed consideration therefor in accordance with the
          provisions of this Agreement, the Shares represented thereby will be
          duly authorized and validly issued, fully paid and nonassessable and
          free of preemptive rights and, to the knowledge of such counsel, will
          be free of any security interest, claim, lien, encumbrance or adverse
          interest of any nature, or rights of first refusal in favor of,
          shareholders with respect to any of the Shares or the issuance or sale
          thereof, pursuant to the articles of incorporation or bylaws of the
          Company and, to such counsel's knowledge other than as disclosed in
          the Prospectus, there are no contractual preemptive rights, rights of
          first refusal, rights of co-sale or other similar rights which exist
          with

                                      -13-

 
          respect to any of the Shares or the issuance and sale thereof; and the
          Shares to be sold hereunder have been qualified for inclusion on The
          Nasdaq National Market, subject to notice of issuance.

               v.    This Agreement has been duly and validly authorized,
          executed and delivered by the Company and constitutes a valid and
          binding obligation of the Company, enforceable in accordance with its
          terms, except as enforceability may be limited by bankruptcy,
          insolvency, reorganization, moratorium or other similar laws affecting
          creditors' rights generally and by general principles of equity, and
          except that such counsel need express no opinion as to those
          provisions relating to indemnities for liabilities under the Act.

               vi.   No authorization, approval, order or consent of any
          governmental authority or agency is required for the valid issuance
          and sale of the Shares, except such as may be required under the Act
          or state securities laws as to which such counsel need express no
          opinion.

               vii.  The execution, delivery and performance by the Company of
          this Agreement and the issue and sale of the Shares will not conflict
          with or result in a breach of any of the provisions of, or constitute
          a default under (A) the Company's articles of incorporation or bylaws
          or any agreement, franchise, license, indenture, mortgage, deed of
          trust or other instrument or agreement known to such counsel to which
          the Company is a party or by which the Company is bound or to which
          its properties are subject or (B) so far as known to such counsel, any
          statute, order, rule or regulation applicable to the Company of any
          court or other governmental authority or body having jurisdiction over
          the Company or its properties.

               viii. The Registration Statement has become effective under the
          Act, and, to the knowledge of such counsel, no stop order suspending
          the effectiveness of the Registration Statement has been issued and no
          proceedings for that purpose have been instituted or are pending or
          contemplated under the Act.

               ix.   The Registration Statement (including the information
          deemed to be part of the Registration Statement at the time of
          effectiveness pursuant to Rule 430A(b), if applicable) as amended or
          supplemented (except for the financial statements and notes thereto,
          the financial statement schedules and other statistical or financial
          data included therein, as to which such counsel need express no
          opinion) and the Prospectus and any supplements or amendments thereto
          (except for the financial statements and notes thereto, the financial
          statement schedules and other statistical or financial data included
          therein, as to which such counsel need express no opinion) comply as
          to form in all material respects with the requirements of the Act and
          the rules promulgated thereunder and nothing has come to the attention
          of such counsel that would cause such counsel to believe that the
          Registration Statement (including the information deemed to be part of
          the

                                      -14-

 
          Registration Statement at the time of effectiveness pursuant to Rule
          430A(b), if applicable) as amended or supplemented (except for the
          financial statements and notes thereto, the financial statement
          schedules and other statistical or financial data included therein, as
          to which such counsel need express no opinion) at the time it became
          effective, and at the Closing Date, contained any untrue statement of
          a material fact or omitted or omits to state any material fact
          required to be stated therein or necessary to make the statements
          therein not misleading, or that, as of its date, the Prospectus or any
          amendment or supplement thereto (except for the financial statements
          and notes thereto, the financial statement schedules and other
          statistical or financial data included therein, as to which such
          counsel need express no opinion) included or includes any untrue
          statement of a material fact or omitted or omits to state any material
          fact necessary to make the statements therein, in light of the
          circumstances under which they were made, not misleading. [If used,
          the Rule 434 Prospectus conforms to the requirements of Rule 434 of
          the Act.]

               x.    The statements in the Prospectus in the sections captioned
          "Description of Securities of the Company," and "Supervision and
          Regulation" in each case insofar as such statements constitute matters
          of law, summaries of law or legal conclusions have been reviewed by
          counsel and accurately present and summarize, in all material
          respects, the matters described herein.

               xi.   To the knowledge of such counsel there are no statutes or
          regulations or any pending or threatened litigation or governmental
          proceedings against the Company required to be described in the
          Prospectus which are not so described, nor of any contracts or
          documents of a character required to be described in or filed as a
          part of the Registration Statement which are not described or filed as
          required.

               xii.  To such counsel's knowledge, except as disclosed in the
          Prospectus, no person has the right, contractual or otherwise, to
          cause the Company to register pursuant to the Act any shares of
          capital stock of the Company upon the issuance and sale of the Shares
          to be sold by the Company to the Underwriter pursuant to this
          Agreement.

               xiii. Neither the Company nor the Bank is an "investment
          company" or a person "controlled by" an "investment company" within
          the meaning of the Investment Company Act.

               xiv.  To such counsel's knowledge, all offers and sales of the
          Company's capital stock prior to the date hereof were at all relevant
          times exempt from the registration requirements of the Act and were
          duly registered or the subject of an available exemption from the
          registration requirements of the applicable state securities or Blue
          Sky laws.

                                      -15-

 
     In rendering such opinion, such counsel may state that it is relying upon
the certificate of the officers of the Company and the transfer agent for the
Common Stock, as to the number of shares of Common Stock at any time or times
outstanding, and that insofar as its opinion under clause (x) above relates to
the accuracy and completeness of the Prospectus and Registration Statement, it
is based upon a general review with the Company's representatives and
independent accountants of the information contained therein, without
independent verification by such counsel of the accuracy or completeness of such
information.  Such counsel may also rely upon the opinions of other competent
counsel and, as to factual matters, on certificates of officers of the Company
and its subsidiaries and of state officials, in which case its opinion is to
state that it is so doing and copies of such opinions or certificates are to be
attached to the opinion unless such opinions or certificates (or, in the case of
certificates, the information therein) have been furnished to the Underwriter
otherwise.

          d.  The Underwriter shall have received on the Closing Date a
     favorable opinion dated the Closing Date from Rothgerber Johnson & Lyons
     LLP, counsel for the Underwriter, as to such matters as the Underwriter may
     reasonably require.

          e.  On the Closing Date, the Underwriter shall have received letters
     addressed to the Underwriter and dated the date hereof and the Closing Date
     from Arnold, Walker, Arnold & Co., P.C., in a form and substance reasonably
     satisfactory to the Underwriter. There shall not have been any change or
     decrease specified in the letters referred to in this paragraph which makes
     it impractical or inadvisable in the judgment of the Underwriter to proceed
     with the public offering or purchase of the Shares as contemplated hereby.

          f.  (i) no stop order suspending the effectiveness of the Registration
     Statement shall have been issued and no proceedings for that purpose shall
     have been taken or, to the knowledge of the Company, shall be contemplated
     by the Commission at or prior to the Closing Date; (ii) there shall not
     have been any change in the capital stock of the Company nor any material
     increase in the short- or long-term debt of the Company or its subsidiaries
     from that set forth or contemplated in the Registration Statement; (iii)
     there shall not have been, since the respective dates as to which
     information is given in the Registration Statement and the Prospectus,
     except as may otherwise be set forth or contemplated in the Registration
     Statement and the Prospectus, any material adverse change in the financial
     condition or results of operations of the Company or its subsidiaries taken
     as a whole; (iv) the Company and its subsidiaries shall not have incurred
     any material liabilities or obligations, direct or contingent (whether or
     not in the ordinary course of business), other than those reflected in the
     Registration Statement; and (v) all of the representations and warranties
     of the Company contained in this Agreement shall be true and correct in all
     material respects on and as of the date hereof and the Closing Date as if
     made on and as of each such date and the Underwriter shall have received a
     certificate, dated the Closing Date and signed by the chief executive
     officer and the principal financial officer (or such other officers as are
     acceptable to the Underwriter) to the effect set forth in this Section 6(f)
     and in Section 6(g) hereof.

                                      -16-

 
          g.  The Company shall not have failed at or prior to the Closing Date
     to have performed or complied in all material respects with any of the
     agreements herein contained and required to be performed or complied with
     by it at or prior to the Closing Date.

          h.  Within 24 hours after the Registration Statement becomes
     effective, or within such longer period as to which the Underwriter shall
     have consented, the Shares shall have been qualified for sale or exempted
     from such qualification under the securities laws of such jurisdictions as
     the Underwriter shall have designated and such qualification or exemption
     shall continue in effect to and including the Closing Date.

          i.  Prior to the Closing Date, the Company shall have furnished to the
     Underwriter or the Underwriter's counsel such further information,
     certificates and documents as the Underwriter or the Underwriter's counsel
     may reasonably request.

     SECTION 7.      INDEMNIFICATION AND CONTRIBUTION.
                     -------------------------------- 

          a.  The Company agrees to indemnify and hold harmless the Underwriter
     and each person, if any, who controls the Underwriter within the meaning of
     the Act or the Exchange Act from and against any and all losses, claims,
     damages or liabilities, joint or several, whatsoever (including any
     investigation, legal or other expenses incurred in connection with, and any
     amount paid in settlement of, any action, suit or proceeding or any claim
     asserted) to which the Underwriter, or such controlling person may become
     subject under the Act, the Exchange Act or otherwise, insofar as arising
     out of or based upon any untrue statement or alleged untrue statement of a
     material fact contained in any preliminary prospectus or the Registration
     Statement or the Prospectus or in any amendment or supplement thereto or
     arising out of or based upon any omission or alleged omission to state
     therein a material fact required to be stated therein or necessary to make
     the statements therein not misleading and will reimburse the Underwriter
     for any legal or other expenses reasonably incurred by the Underwriter in
     connection with investigating or defending any such action or claim as such
     expenses are incurred, except insofar as such losses, claims, damages or
     liabilities arise out of or are based upon any such untrue statement or
     omission or allegation thereof which has been made therein or omitted
     therefrom in reliance upon and in conformity with information relating to
     the Underwriter furnished in writing to the Company by the Underwriter
     expressly for use therein; provided, however, that the indemnification
     contained in this paragraph with respect to any preliminary prospectus
     shall not inure to the benefit of the Underwriter (or of any person
     controlling the Underwriter) with respect to any action or claim arising
     from the sale of the Shares by the Underwriter brought by any person who
     purchased Shares from the Underwriter if (i) a copy of the Prospectus (as
     amended or supplemented if any amendments or supplements thereto shall have
     been furnished to the Underwriter prior to the written confirmation of the
     sale involved) shall not have been given or sent to such person by or on
     behalf of the Underwriter with or prior to the written confirmation of the
     sale involved and (ii) the untrue statement or omission of a material fact
     contained in such

                                      -17-

 
     preliminary prospectus was corrected in the Prospectus (as amended or
     supplemented if amended or supplemented as aforesaid).

          b.  If any action or claim shall be brought against the Underwriter or
     any person controlling the Underwriter, in respect of which indemnity may
     be sought against the Company, the Underwriter shall promptly notify the
     Company in writing, and the Company shall assume the defense thereof,
     including the employment of counsel and payment of all fees and expenses.
     The Underwriter or any such person controlling the Underwriter shall have
     the right to employ separate counsel in any such action and participate in
     the defense thereof, but the fees and expenses of such counsel shall be at
     the expense of the Underwriter or such controlling person unless (i) the
     Company has agreed in writing to pay such fees and expenses, (ii) the
     Company has failed to assume the defense and employ counsel, or (iii) the
     named parties to any such action (including any impleaded party) included
     the Underwriter or controlling person and the Company and the Underwriter
     or controlling person shall have been advised by such counsel that there
     may be one or more legal defenses available to it which are different from
     or additional to those available to the Company and which may also result
     in a conflict of interest (in which case if the Underwriter or controlling
     person notifies the Company, the Company shall not have the right to assume
     the defense of such action on behalf of the Underwriter or controlling
     person, it being understood, however, that the Company shall not, in
     connection with any one such action or separate but substantially similar
     or related actions in the same jurisdiction arising out of the same general
     allegations or circumstances, be liable for the reasonable fees and
     expenses of more than one separate firm of attorneys for the Underwriter
     and any such controlling persons, which firm shall be designated in writing
     by the Underwriter).  The Company shall not be liable for any settlement or
     any such action effected without the written consent of the Company, but if
     settled with the written consent of the Company, or if there shall be a
     final judgment for the plaintiff in any such action and the time for filing
     all appeals has expired, the Company agrees to indemnify and hold harmless
     the Underwriter and any such controlling person from and against any loss
     or liability by reason of such settlement or judgment.

          c.  The Underwriter will indemnify and hold harmless the Company, its
     directors, its officers who sign the Registration Statement and any person
     controlling the Company within the meaning of the Act or the Exchange Act
     to the same extent as the foregoing indemnity from the Company to the
     Underwriter, but only with respect to information relating to the
     Underwriter furnished in writing to the Company by the Underwriter
     expressly for use in the Registration Statement, the Prospectus or any
     preliminary prospectus.  If any action or claim shall be brought or
     asserted against the Company, any of its directors, any such officer, or
     any such controlling person based on the Registration Statement, the
     Prospectus or any preliminary prospectus and in respect of which indemnity
     may be sought against the Underwriter, the Underwriter shall have the
     rights and duties given to the Company pursuant to Section 7(b) hereof
     (except that if the Company shall have assumed the defense thereof, the
     Underwriter shall not be required to do so, but may employ separate counsel
     therein and participate in the defense thereof but

                                      -18-

 
     the fees and expenses of such counsel shall be at the expense of the
     Underwriter), and the Company, its directors, any such officer, and any
     such controlling person shall have the rights and duties given to the
     Underwriter by Section 7(b) hereof.

          d.  (i)  If the indemnification provided for in this Section 7 is
          unavailable as a matter of law to any indemnified party under this
          Section 7 in respect of any losses, claims, damages, liabilities or
          expenses referred to therein, then the indemnifying party in lieu of
          indemnifying such indemnified party thereunder shall contribute to the
          amount paid or payable by damages, liabilities or expenses (A) in such
          proportion as is appropriate to reflect the relative benefits received
          by the Company and the Underwriter from the offering of the Shares or
          (B) if the allocation provided by clause (A) above is not permitted by
          applicable law, in such proportion as is appropriate to reflect not
          only the relative benefits referred to in clause (A) above but also
          the relative fault of the Company and the Underwriter in connection
          with the statements or omissions which resulted in such losses,
          claims, damages, liabilities or expenses, as well as any other
          relevant equitable considerations.  The respective relative benefits
          received by the Company and the Underwriter shall be deemed to be in
          the same proportion, in the case of the Company as the total price
          paid to the Company for the Shares by the Underwriter (net of
          underwriting discount but before deducting expenses), and in the case
          of the Underwriter as the underwriting discount received by it, bears
          to the total of such amounts paid to the Company and received by the
          Underwriter as underwriting discount, in each case as contemplated by
          the Prospectus.  The relative fault of the Company and the Underwriter
          shall be determined by reference to, among other things, whether the
          untrue or alleged untrue statement of a material fact or the omission
          or alleged omission to state a material fact relates to information
          supplied by the Company or by the Underwriter and the parties'
          relative intent, knowledge, access to information and opportunity to
          correct or prevent such statement or omission.  The amount paid or
          payable by an indemnified party as a result of the losses, claims,
          damages, liabilities and expenses referred to in this section shall be
          deemed to include, subject to the limitations set forth in this
          section, any legal or other expenses reasonably incurred by such
          indemnified party in connection with investigating or defending any
          such action or claim.

              (ii) The Company and the Underwriter agree that the determination
          of contribution pursuant to this section based on pro rata allocation
          or by any other method of allocation which does not take account of
          the equitable considerations referred to in the immediately preceding
          paragraph would not be just and equitable. No person guilty of
          fraudulent misrepresentation (within the meaning of Section 11(f) of
          the Act) shall be entitled to contribution from any person who was not
          guilty of such fraudulent misrepresentation.

                                      -19-

 
          e.  The indemnity and contribution agreements contained in this
     Section 7 and the representations and warranties of the Company set forth
     in this Agreement shall remain operative and in full force and effect,
     regardless of (i) any investigation made by or on behalf of the Underwriter
     or any person controlling the Underwriter, the Company or its directors or
     officers (or any person controlling the Company), (ii) acceptance of any
     Shares and payment therefor hereunder and (iii) any termination of this
     Agreement.  A successor or assign of the Underwriter, the Company or its
     directors or officers, and their legal and personal representatives (or of
     any person controlling the Underwriter or the Company) shall be entitled to
     the benefits of the indemnity, contribution and reimbursement agreements
     contained in this section.

     SECTION 8.      EFFECTIVE DATE OF AGREEMENT.  This Agreement shall become
                     ---------------------------                              
effective immediately as to Sections 5, 7, 8 and 9 and as to all other
provisions at 10:00 a.m., San Francisco time, on the day following the date upon
which this Agreement is executed and delivered, unless such a day is a Saturday,
Sunday or holiday (and in that event this Agreement shall become effective at
such hour on the business day next succeeding such Saturday, Sunday or holiday).

     SECTION 9.      TERMINATION OF AGREEMENT.  The Underwriter shall have the
                     ------------------------                                 
right to terminate this Agreement at any time prior to the Closing Date by
notice to the Company from the Underwriter, without liability (other than with
respect to Section 7) on the Underwriter's part to the Company if, on or prior
to such date, (i) the Company shall have failed, refused or been unable to
perform in any material respect any agreement on its part to be performed
hereunder, (ii) any other condition to the obligations of the Underwriter
hereunder as provided in Section 6 is not fulfilled when and as required in any
material respect, (iii) trading in securities generally on the New York Stock
Exchange, the American Stock Exchange or the NASD Automated Quotation System
shall have been suspended or materially limited, or minimum prices shall have
been established on any such exchange by the Commission, or by such exchange or
other regulatory body or governmental authority having jurisdiction, (iv) a
general Banking moratorium shall have been declared by federal or Texas state
authorities, (v) there is a material outbreak or escalation of armed hostilities
involving the United States on or after the date hereof, or if there has been a
declaration by the United States of a national emergency or war, the effect of
which shall be, in the Underwriter's reasonable judgment, to make it inadvisable
or impracticable to proceed with the public offering or delivery of the Shares
on the terms and in the manner contemplated in the Prospectus as supplemented or
amended prior to the occurrence of such event, (vi) in the Underwriter's
reasonable opinion any material adverse change shall have occurred since the
respective dates as of which information is given in the Registration Statement
or the Prospectus (as supplemented or amended prior to the occurrence of such
event) in the condition (financial or other) of the Company whether or not
arising in the ordinary course of business other than as set forth in the
Prospectus as supplemented or amended prior to the occurrence of such event, or
(vii) there shall have been such a material adverse change in general economic,
political or financial conditions or if the effect of international conditions
on the financial markets in the United States shall be such as, in the
Underwriter's reasonable opinion, makes it inadvisable or impracticable to

                                      -20-

 
proceed with the delivery of the Shares as contemplated hereby.  Notice of such
cancellation shall be given to the Company by telecopy or telephone but shall be
subsequently confirmed by letter.

     SECTION 10.     NOTICES.  Except as otherwise provided in Section 9 hereof,
                     -------                                                    
notice given pursuant to any of the provisions of this Agreement shall be in
writing and shall be delivered (a) if to the Company, at the office of the
Company at 100 West Arkansas, P.O. Box 1158, Mt. Pleasant, Texas 75456,
Attention:  Arthur B. Scharlach, Jr., President; with a copy to Bracewell &
Patterson, L.L.P., 711 Louisiana Street, Suite 2900, Houston, Texas 77002,
Attention:  William T. Luedke IV; or (b) if to the Underwriter, at the offices
of Hoefer & Arnett Incorporated, 353 Sacramento Street, 10th Floor, San
Francisco, California 94111, Attention: Steven J. Didion; with a copy to
Rothgerber Johnson & Lyons LLP, 1200 17th Street, Suite 3000, Denver, Colorado
80202-5839, Attention: Herbert H. Davis III, Esq., or in any case to such other
address as the person to be notified may have requested in writing.

     SECTION 11.     SUCCESSORS.  The Agreement is made solely for the benefit
                     ----------                                               
of the Underwriter, the Company, their directors and officers and other
controlling persons referred to in Section 7 hereof, and their respective
successors and assigns, and no other person shall acquire or have any right
under or by virtue of this Agreement.  The term "successors and assigns" as used
in this Agreement shall not include a purchaser from the Underwriter of any of
the Shares in his status as such purchaser.

     SECTION 12.     PARTIAL UNENFORCEABILITY.  If any section, paragraph or
                     ------------------------                               
provision of this Agreement is for any reason determined to be invalid or
unenforceable, such determination shall not affect the validity or
enforceability of any other section, paragraph or provision hereof.

     SECTION 13.     APPLICABLE LAW.  This Agreement shall be governed by and
                     --------------                                          
construed in accordance with the laws of the State of Texas.

     SECTION 14.     COUNTERPARTS.  This Agreement may be signed in various
                     ------------                                          
counterparts which together shall constitute one and the same instrument.

     Please confirm that the foregoing correctly sets forth the agreement
between the Company and the Underwriter.

                              Very truly yours,

                              GUARANTY BANCSHARES, INC.


                              By:
                                  -------------------------------------
                              Name:      Arthur B. Scharlach, Jr.
                              Title:     President

                                      -21-

 
Accepted and delivered as of
the date first written above

HOEFER & ARNETT INCORPORATED


By:
    -----------------------------

                                      -22-