COLONIAL BANCGROUP INC
S-4, 1997-10-31
STATE COMMERCIAL BANKS
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<PAGE>   1
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 31, 1997.
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ---------------------
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                             ---------------------
                          THE COLONIAL BANCGROUP, INC.
             (Exact name of Registrant as specified in its charter)
                             ---------------------
 
<TABLE>
<S>                                <C>                                <C>
             DELAWARE                             6711                            63-0661573
     (State of Incorporation)         (Primary Standard Industrial             (I.R.S. Employer
                                      Classification Code Number)            Identification No.)
 
  ONE COMMERCE STREET, SUITE 800                                                (334) 240-5000
    MONTGOMERY, ALABAMA 36104                                                  (Telephone No.)
 (Address of principal executive
             offices)
</TABLE>
 
                             ---------------------
                              W. FLAKE OAKLEY, IV
                                   SECRETARY
                              POST OFFICE BOX 1108
                         MONTGOMERY, ALABAMA 36101-1108
                    (Name and address of agent for service)
                             ---------------------
                                   COPIES TO:
 
<TABLE>
<C>                                                  <C>
               WILLIAM A. MCCRARY                                  JOHN P. GREELEY, ESQ.
        VICE PRESIDENT AND LEGAL COUNSEL               SMITH, MACKINNON, GREELEY, BOWDOIN & EDWARDS,
               COLONIAL BANCGROUP                                          P.A.
                  P.O. BOX 1108                                  CITRUS CENTER, SUITE 800
         MONTGOMERY, ALABAMA 36101-1108                           255 SOUTH ORANGE AVENUE
             TELEPHONE: 334-240-5315                              ORLANDO, FLORIDA 32801
             FACSIMILE: 334-265-5312                              TELEPHONE: 407-843-7300
                                                                  FACSIMILE: 407-843-2448
</TABLE>
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As soon
as practicable after the effective time of the proposed merger of United
American Holding Corporation ("United American") with and into the Registrant
(the "Merger") as described in the Agreement and Plan of Merger, dated as of
September 8, 1997, attached as Exhibit A to the Proxy Statement and Prospectus
forming a part of this Registration Statement.
 
     If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. []
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
=========================================================================================================================
                                                                 PROPOSED             PROPOSED
                                             AMOUNT              MAXIMUM               MAXIMUM             AMOUNT OF
  TITLE OF EACH CLASS OF SECURITIES           TO BE           OFFERING PRICE          AGGREGATE          REGISTRATION
           TO BE REGISTERED               REGISTERED(1)          PER UNIT         OFFERING PRICE(2)           FEE
- -------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>                <C>                   <C>                  <C>
Common Stock, par value $2.50 per
  share...............................      3,776,714         Not Applicable         $22,321,233           $6,764.01
=========================================================================================================================
</TABLE>
 
(1) This Registration Statement covers the maximum number of shares of common
    stock of the Registrant which is expected to be issued in connection with
    the Merger.
(2) Estimated solely for purposes of calculating the registration fee and,
    pursuant to Rule 457(f)(2) under the Securities Act of 1933, as amended,
    based upon the June 30, 1997 book value of $11.33 per share of 1,970,100
    shares of United American, including 190,500 shares subject to stock
    options.
 
                             --------------------------
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON EACH SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SECTION 8(A), MAY
DETERMINE.
================================================================================
<PAGE>   2
 
                      UNITED AMERICAN HOLDING CORPORATION
                            105 WEST COLONIAL DRIVE
                             ORLANDO, FLORIDA 32801
 
                                            , 1997
 
Dear Shareholder:
 
     You are cordially invited to attend the Special Meeting of Shareholders
(the "Special Meeting") of United American Holding Corporation ("United
American"), which will be held on             , 1997, at           p.m. local
time. The Special Meeting will be held at the main office of United American,
located at 105 West Colonial Drive, Orlando, Florida.
 
     At the Special Meeting, shareholders of United American will be asked to
consider and vote on approval of an Agreement and Plan of Merger, dated as of
September 8, 1997, between United American and The Colonial BancGroup, Inc.
("BancGroup"), pursuant to which United American would be merged (the "Merger")
with BancGroup. In the Merger, United American shareholders will receive whole
shares of BancGroup Common Stock in exchange for shares of United American
Common Stock held by them. Each share of United American Common Stock
outstanding at the time of the effectiveness of the Merger will be converted
into the right to receive shares of BancGroup Common Stock with a market value
(as calculated in accordance with the terms of the Agreement) at the time of the
Merger of $36.50, subject to a maximum and minimum number of shares to be
issued. Cash will be paid for any fractional shares. Please see the attached
Proxy Statement and Prospectus for a complete description of the terms of the
Merger and the formula for converting shares of United American Common Stock
into shares of BancGroup Common Stock in the Merger.
 
     THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE AGREEMENT AND THE
MERGER AS BEING IN THE BEST INTEREST OF UNITED AMERICAN SHAREHOLDERS AND
RECOMMENDS THAT YOU VOTE IN FAVOR OF THE APPROVAL OF THE AGREEMENT.
 
     Additional information regarding the Agreement, the Merger, United American
and BancGroup is set forth in the attached Proxy Statement, which also serves as
the Prospectus for the shares of BancGroup Common Stock to be issued in
connection with the Merger. Please read these materials and carefully consider
the information contained in them.
 
     The affirmative vote of the holders of a majority of the outstanding shares
of United American Common Stock is required to approve the Agreement.
Accordingly, your vote is important no matter how large or small your holdings
may be. Whether or not you plan to attend the Special Meeting, you are urged to
complete, sign and promptly return the enclosed Proxy Card to assure that your
shares will be voted at the Special Meeting. If you attend the Special Meeting,
you may vote in person if you wish and your proxy will not be used.
 
                                          Sincerely,
 
                                          --------------------------------------
                                                     James L. Hewitt
                                              Chairman, President and Chief
                                                    Executive Officer
<PAGE>   3
 
                      UNITED AMERICAN HOLDING CORPORATION
                            105 WEST COLONIAL DRIVE
                             ORLANDO, FLORIDA 32801
                                 (407) 648-0546
                             ---------------------
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
             TO BE HELD ON                     , 1997, AT      A.M.
                             ---------------------
 
     NOTICE IS HEREBY GIVEN that a special meeting of shareholders (the "Special
Meeting") of United American Holding Corporation ("United American") will be
held at the           , located at           ,           , Florida, on
                    , 1997, at      a.m., local time, for the following
purposes:
 
          1. Merger.  To consider and vote upon the proposed merger (the
     "Merger") of United American with and into The Colonial BancGroup, Inc.
     ("BancGroup"), in accordance with an Agreement and Plan of Merger, dated as
     of September 8, 1997, between United American and BancGroup (the
     "Agreement"). BancGroup will be the surviving corporation in the Merger.
     Each share of common stock of United American outstanding at the time of
     the Merger will be converted into the right to receive shares of BancGroup
     Common Stock with a market value (as calculated in accordance with the
     terms of the Agreement) at the time of the Merger of $36.50, subject to a
     maximum and minimum number of shares to be issued, with cash paid in lieu
     of fractional shares at the market value of such fractional shares, as
     described more fully in the accompanying Proxy Statement and Prospectus.
     The Agreement is attached to the Proxy Statement and Prospectus as Appendix
     A.
 
          2. Other Matters.  To transact such other business as may properly
     come before the Special Meeting or any adjournments or postponements
     thereof.
 
     The Board of Directors of United American has fixed the close of business
on                     , 1997, as the record date for the determination of
shareholders entitled to notice of and to vote at the Special Meeting. Only
holders of record of the common stock of United American at the close of
business on that date will be entitled to notice of and to vote at the Special
Meeting or any adjournments or postponements thereof. United American
shareholders are entitled to assert dissenters' rights pursuant to the Florida
Business Corporation Act. A copy of the dissenters' rights provisions is
attached to the enclosed Proxy Statement and Prospectus as Appendix B.
 
     You are cordially invited to attend the Special Meeting, but whether or not
you plan to attend, please complete and sign the enclosed form of proxy and mail
it promptly in the enclosed envelope. The proxy may be revoked at any time by
filing a written revocation with the Secretary of United American, by executing
a later dated proxy and delivering it to the Secretary of United American at or
prior to the Special Meeting, or by attending the Special Meeting and voting in
person.
 
                                          BY ORDER OF THE BOARD OF DIRECTORS
 
                                          --------------------------------------
                                                     James L. Hewitt
                                              Chairman, President and Chief
                                                    Executive Officer
 
          , 1997
<PAGE>   4
 
                                   PROSPECTUS
 
                         COMMON STOCK, $2.50 PAR VALUE
                          THE COLONIAL BANCGROUP, INC.
 
                                PROXY STATEMENT
 
                     FOR SPECIAL MEETING OF SHAREHOLDERS OF
 
                      UNITED AMERICAN HOLDING CORPORATION
 
                      TO BE HELD ON                , 1997
 
     This Proxy Statement and Prospectus (the "Prospectus") relates to the
proposed merger (the "Merger") of United American Holding Corporation, a Florida
corporation ("United American"), with and into The Colonial BancGroup, Inc., a
Delaware corporation ("BancGroup"). This Prospectus is being furnished to the
shareholders of United American in connection with the solicitation of proxies
by the Board of Directors of United American for use at a special meeting of the
shareholders of United American to be held on                , 1997, at
     a.m., local time, at the               ,              , Florida (the
"Special Meeting"), and any adjournments or postponements thereof. At the
Special Meeting, shareholders of United American will consider and vote upon the
matters set forth in the preceding Notice of Special Meeting of the
Shareholders, as more fully described in this Prospectus.
 
     The Merger will be consummated pursuant to the terms of a certain Agreement
and Plan of Merger dated as of September 8, 1997 by and between BancGroup and
United American (the "Agreement"). The Agreement provides that, subject to the
approval of the Agreement by the shareholders of United American at the Special
Meeting and the satisfaction (or waiver, to the extent that such waiver is
permitted by law) of other conditions contained in the Agreement, United
American will be merged with and into BancGroup, and BancGroup will be the
surviving corporation. Each issued and outstanding share of common stock, par
value $.01 per share, of United American (the "United American Common Stock"),
shall be converted into shares of the common stock (the number of which shall be
calculated in accordance with the terms of the Agreement), par value $2.50 per
share, of BancGroup (the "BancGroup Common Stock") with a market value of
$36.50, subject to a maximum and minimum number of shares to be issued, with the
market value determined by the average of the closing prices of BancGroup Common
Stock for the ten trading days ending on the trading day that is five calendar
days immediately preceding the Effective Date of the Merger. See "The
Merger -- Conversion of United American Common Stock." The shares of BancGroup
Common Stock are listed on the New York Stock Exchange ("NYSE"). The closing
price per share of the BancGroup Common Stock on the NYSE on October 21, 1997
was $30.75.
 
     Consummation of the Merger requires, among other things, the affirmative
vote of the holders of at least a majority of the outstanding shares of United
American Common Stock.
 
     BancGroup has filed a Registration Statement pursuant to the Securities Act
of 1933, as amended (the "Securities Act"), to register the shares of the
BancGroup Common Stock to be issued in connection with the Merger as well as to
register shares of BancGroup Common Stock to be issued upon the exercise of
stock options relating to United American Common Stock assumed by BancGroup as
part of the Merger. This document constitutes a Proxy Statement of United
American in connection with the solicitation of proxies by United American for
use at the Special Meeting, and any adjournments or postponements thereof, and a
Prospectus of BancGroup with respect to the BancGroup Common Stock to be issued
in the Merger and with respect to the BancGroup Common Stock to be issued upon
the exercise of stock options assumed in the Merger. This Prospectus and
accompanying form of proxy are first being mailed to shareholders of United
American on or about the date set forth below.
 
        THE BOARD OF DIRECTORS OF UNITED AMERICAN UNANIMOUSLY RECOMMENDS
                           APPROVAL OF THE AGREEMENT.
                             ---------------------
   THE SECURITIES TO WHICH THIS PROSPECTUS RELATES HAVE NOT BEEN APPROVED OR
 DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
    COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE
 SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                             ---------------------
THE SHARES OF BANCGROUP COMMON STOCK OFFERED HEREBY ARE NOT SAVINGS ACCOUNTS OR
DEPOSITS AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY
                           OTHER GOVERNMENTAL AGENCY.
 
     The principal office and mailing address of United American are 105 West
Colonial Drive, Orlando, Florida 32801 (telephone (407)648-0546), and the
principal office and mailing address of BancGroup are Colonial Financial Center,
One Commerce Street, Post Office Box 1108, Montgomery, Alabama 36101 (telephone
334-240-5000).
                     THE DATE OF THIS PROSPECTUS IS, 1997.
<PAGE>   5
 
                             AVAILABLE INFORMATION
 
     BancGroup is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports and other information with the Securities and Exchange
Commission (the "Commission"). Such reports and other information filed by
BancGroup, including proxy and information statements, can be inspected and
copied at the public reference facilities of the Commission, Judiciary Plaza,
450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549, and at certain
regional offices: 7 World Trade Center, 13th Floor, New York, New York 10048;
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois
60661-2511; 1401 Brickell Avenue, Suite 200, Miami, Florida 33131; 1801
California Street, Suite 4800, Denver, Colorado 80202-2648; and 5670 Wilshire
Boulevard, 11th Floor, Los Angeles, California 90036-3648. Copies of such
material can be obtained from the Public Reference Section of the Commission at
450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed rates.
 
     The Commission also maintains a Web site (http://www.sec.gov) that contains
reports, proxy and information statements and other information regarding
registrants, such as BancGroup, that file electronically with the Commission.
 
     The BancGroup Common Stock is listed for trading on the NYSE. Reports,
including proxy and information statements, of BancGroup and other information
may be inspected at the NYSE, 20 Broad Street, New York, New York 10005.
 
     BancGroup has filed with the Commission a Registration Statement under the
Securities Act to register the shares of BancGroup Common Stock being issued in
connection with the Merger. This Prospectus omits certain information contained
in the Registration Statement and exhibits thereto. Such Registration Statement,
including the exhibits thereto, can be inspected at the Public Reference Section
of the Commission, 450 Fifth Street, N.W., Washington, D.C. 20549, and copies of
such Registration Statement can be obtained at prescribed rates from the
Commission at that address.
 
     The information in this Prospectus concerning BancGroup and its
subsidiaries has been furnished by BancGroup, and the information concerning
United American and its subsidiary has been furnished by United American.
 
     This Prospectus contains certain forward-looking statements with respect to
the financial condition, results of operations, and business of BancGroup
following the consummation of the Merger and the proposed acquisition of other
banking institutions (the "Other Pending Acquisitions"), including statements
relating to the expected impact of the Merger and the Other Pending Acquisitions
on BancGroup's financial performance. These forward-looking statements involve
certain risks and uncertainties. Factors that may cause actual results to differ
materially from those contemplated by such forward-looking statements include,
among other things, the following possibilities: (i) expected cost savings from
the Merger and the Other Pending Acquisitions, if any or all of such
transactions are consummated, cannot be fully realized; (ii) deposit attrition,
customer loss, or revenue loss following the Merger and the Other Pending
Acquisitions is greater than expected; (iii) competitive pressure in the banking
industry increases significantly; (iv) costs or difficulties related to the
integration of the businesses of BancGroup and the institutions to be acquired
are greater than expected; (v) changes in the interest rate environment reduce
margins; (vi) general economic conditions, either nationally or regionally, are
less favorable than expected, resulting in, among other things, a deterioration
in credit quality; (vii) changes occur in the regulatory environment; (viii)
changed occur in business conditions and the rate of inflation; and (ix) changes
occur in the securities markets. Forward-looking earnings estimates (if any)
included in this Prospectus have not been examined or compiled by the
independent public accountants of BancGroup and United American, nor have such
accountants applied any procedures thereto. Accordingly, such accountants do not
express an opinion or any other form of assurance on them. When used in this
Prospectus, the words "believes," "estimates," "plans," "expects," "should,"
"may," "might," "outlook," and "anticipates," and similar expressions as they
relate to BancGroup (including its subsidiaries), or its management are intended
to identify forward-looking statements. Further information on other factors
that could affect the financial results of BancGroup after the Merger and the
Other Pending Acquisitions is included in the filings with the Commission
incorporated by reference herein.
 
                                        i
<PAGE>   6
 
     NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED OR INCORPORATED BY REFERENCE IN THIS
PROSPECTUS IN CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF
SECURITIES MADE HEREBY AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY BANCGROUP OR UNITED
AMERICAN. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A
SOLICITATION OF AN OFFER TO BUY, ANY SECURITIES, OR THE SOLICITATION OF A PROXY,
IN ANY JURISDICTION, TO OR FROM ANY PERSON TO WHOM OR FROM WHOM IT IS UNLAWFUL
TO MAKE ANY SUCH OFFER OR SOLICITATION IN SUCH JURISDICTION. NEITHER THE
DELIVERY OF THIS PROSPECTUS NOR ANY DISTRIBUTION OF SECURITIES MADE HEREUNDER
SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS BEEN NO
CHANGE IN THE AFFAIRS OF BANCGROUP OR UNITED AMERICAN SINCE THE DATE OF THIS
PROSPECTUS OR THAT INFORMATION IN THIS PROSPECTUS OR IN THE DOCUMENTS
INCORPORATED BY REFERENCE HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE
DATE HEREOF OR THE DATES THEREOF.
 
                                       ii
<PAGE>   7
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
          THIS PROSPECTUS INCORPORATES DOCUMENTS OF BANCGROUP BY REFERENCE WHICH
     ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. THESE DOCUMENTS ARE
     AVAILABLE, WITHOUT CHARGE, UPON REQUEST FROM THE PERSONS SPECIFIED BELOW.
     IN ORDER TO ENSURE TIMELY DELIVERY OF THE DOCUMENTS, ANY REQUEST SHOULD BE
     RECEIVED BY BANCGROUP NO LATER THAN FIVE BUSINESS DAYS PRIOR TO THE SPECIAL
     MEETING.
 
          The following documents filed by BancGroup with the Commission are
     hereby incorporated by reference into this Prospectus:
 
          (1) BancGroup's Annual Report on Form 10-K for the fiscal year ended
     December 31, 1996;
 
          (2) BancGroup's Quarterly Reports on Form 10-Q for the quarters ended
     March 31, 1997 and June 30, 1997;
 
          (3) BancGroup's Report on Form 8-K dated January 20, 1997;
 
          (4) BancGroup's Report on Form 8-K dated March 10, 1997;
 
          (5) BancGroup's Report on Form 8-K dated April 15, 1997;
 
          (6) BancGroup's Report on Form 8-K dated June 11, 1997;
 
          (7) BancGroup's Report on Form 8-K dated June 24, 1997;
 
          (8) BancGroup's Report on Form 8-K/A dated August 13, 1997 (replacing
     a Form 8-K filed on August 12, 1997);
 
          (9) BancGroup's Report on Form 8-K dated October 30, 1997;
 
          (10) The description of the current management and Board of Directors
     contained in the Proxy Statement distributed pursuant to Section 14(a) of
     the Exchange Act for BancGroup's Annual Meeting of shareholders held on
     April 16, 1997; and
 
          (11) BancGroup's Registration Statement on Form 8-A dated November 22,
     1994, effective February 22, 1995, containing a description of the
     BancGroup Common Stock.
 
     All documents filed by BancGroup pursuant to Section 13(a), 13(c), 14 or
15(d) of the Exchange Act after the date of this Prospectus and prior to the
Special Meeting, or, in the case of the exercise of stock options that are being
assumed by BancGroup, prior to the exercise of such options, shall be deemed
incorporated by reference in this Prospectus and made a part hereof from the
date of filing of such documents. Any statement contained in a document
incorporated or deemed incorporated herein by reference will be deemed to be
modified or superseded for the purpose of this Prospectus to the extent that a
statement contained herein or in another subsequently filed document which also
is, or is deemed to be, incorporated herein by reference modifies or supersedes
such statement. Any such statement so modified or superseded will not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.
 
     BancGroup has entered into the Agreement with United American regarding the
Merger described herein. Various provisions of the Agreement are summarized or
referred to in this Prospectus, and the Agreement is incorporated by reference
into this Prospectus and attached hereto as Appendix A.
 
     BancGroup will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, on the request of any
such person, a copy of any and all of the documents which have been incorporated
herein by reference but not delivered herewith (other than the exhibits to such
documents unless specifically incorporated herein). Such request, in writing or
by telephone, should be directed to W. Flake Oakley, IV, Secretary, The Colonial
BancGroup, Inc., One Commerce Street, Post Office Box 1108, Montgomery, Alabama
36192 (telephone 334-240-5000).
 
                                       iii
<PAGE>   8
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
SUMMARY.....................................................     1
THE SPECIAL MEETING.........................................    11
  General...................................................    11
  Record Date; Shares Entitled to Vote; Vote Required for
     the Merger.............................................    11
  Solicitation, Voting and Revocation of Proxies............    11
  Effect of Merger on Outstanding BancGroup Common Stock....    12
THE MERGER..................................................    13
  General...................................................    13
  Background of the Merger..................................    13
  United American's Board of Directors' Reasons for
     Approving the Merger...................................    14
  Recommendation of the Board of Directors of United
     American...............................................    14
  BancGroup's Reasons for the Merger........................    14
  Related Transactions -- Stock Option......................    15
  Interests of Certain Persons in the Merger................    16
  Conversion of United American Common Stock................    17
  Surrender of United American Common Stock Certificates....    17
  Certain Federal Income Tax Consequences...................    18
  Other Possible Consequences...............................    20
  Conditions to Consummation of the Merger..................    20
  Amendment or Termination of Agreement.....................    21
  Regulatory Approvals......................................    21
  Conduct of Business Pending the Merger....................    23
  Commitments with Respect to Other Offers..................    24
  Indemnification...........................................    24
  Rights of Dissenting Shareholders.........................    25
  Resale of BancGroup Common Stock Issued in the Merger.....    26
  Accounting Treatment......................................    27
  NYSE Reporting of BancGroup Common Stock Issued in the
     Merger.................................................    27
  Treatment of United American Options......................    27
COMPARATIVE MARKET PRICES AND DIVIDENDS.....................    31
  BancGroup.................................................    31
  United American...........................................    32
BANCGROUP CAPITAL STOCK AND DEBENTURES......................    32
  BancGroup Common Stock....................................    33
  Preference Stock..........................................    33
  1986 Debentures...........................................    33
  Other Indebtedness........................................    34
  Changes in Control........................................    34
COMPARATIVE RIGHTS OF SHAREHOLDERS..........................    37
  Director Elections........................................    37
  Removal of Directors......................................    37
  Voting....................................................    37
  Preemptive Rights.........................................    37
  Directors' Liability......................................    37
</TABLE>
 
                                       iv
<PAGE>   9
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
</TABLE>
 
  Indemnification...........................................    38
  Special Meetings of Shareholders; Action Without a
     Meeting................................................    39
  Mergers, Share Exchanges and Sales of Assets..............    39
  Amendment of Certificate of Incorporation and Bylaws......    40
  Rights of Dissenting Stockholders.........................    40
  Preferred Stock...........................................    40
  Effect of the Merger on United American Shareholders......    41
THE COLONIAL BANCGROUP, INC. AND SUBSIDIARIES...............    42
  Condensed Pro Forma Statements of Condition (Unaudited)...    42
  Condensed Pro Forma Statement of Income (Unaudited).......    48
  Recent Developments.......................................    55
  Selected Financial and Operating Information..............    56
UNITED AMERICAN HOLDING CORPORATION.........................    59
  Selected Financial Data...................................    59
  Management's Discussion and Analysis of Financial
     Condition and Results of Operations for the six months
     Ended June 30, 1997 and 1996, the for the Fiscal Years
     Ended December 31, 1996, 1995 and 1994.................    60
BUSINESS OF BANCGROUP.......................................    78
  General...................................................    78
  Recently Completed and Other Proposed Business
     Combinations...........................................    78
  Year 2000 Compliance......................................    79
  Voting Securities and Principal Stockholders..............    79
  Security Ownership of Management..........................    80
  Management Information....................................    81
BUSINESS OF UNITED AMERICAN.................................    82
  General...................................................    82
  Deposit Activities........................................    82
  Lending Activities........................................    82
  Investments...............................................    83
  Employees.................................................    83
  Properties................................................    84
  Legal Proceedings.........................................    84
  Principal Holders of Common Stock.........................    85
ADJOURNMENT OF SPECIAL MEETING..............................    85
OTHER MATTERS...............................................    86
DATE FOR SUBMISSION OF BANCGROUP SHAREHOLDER PROPOSALS......    86
LEGAL MATTERS...............................................    86
EXPERTS.....................................................    86
INDEX TO FINANCIAL STATEMENTS...............................   F-1
APPENDIX A -- Agreement and Plan of Merger..................   A-1
APPENDIX B -- Sections 607.1301, 607.1302 and 607.1320 of
  the Florida Business Corporation Act Regarding Dissenter's
  Rights....................................................   B-1
APPENDIX C -- Stock Option Agreement........................   C-1
 
                                        v
<PAGE>   10
 
                                    SUMMARY
 
     The following provides a summary of certain information included in this
Prospectus. This summary is qualified in its entirety by the more detailed
information appearing elsewhere herein, the Appendices hereto and the documents
incorporated herein by reference. Shareholders of United American are urged to
read this Prospectus, including the Appendices, in full.
 
GENERAL
 
     This Prospectus relates to the issuance of shares of BancGroup Common Stock
in connection with the proposed Merger of United American with and into
BancGroup.
 
THE SPECIAL MEETING
 
     This Prospectus is being furnished to the holders of United American Common
Stock in connection with the solicitation by the United American Board of
Directors of proxies for use at the Special Meeting and at any and all
adjournments and postponements thereof at which United American shareholders
will be asked to vote upon (i) a proposal to approve the Agreement; and (ii)
such other business as may properly come before the meeting. The Special Meeting
will be held at the           , Florida on           ,           , 1997, at
 
a.m., local time, for the purpose of considering and voting upon the Merger and
the Agreement. Only holders of record of United American Common Stock at the
close of business on           ,           , 1997 (the "Record Date") are
entitled to the notice of and to vote at the Special Meeting. As of the Record
Date,        shares of United American Common Stock were issued and outstanding.
See "The Special Meeting."
 
THE COMPANIES
 
     BancGroup.  BancGroup is a bank holding company within the meaning of the
Bank Holding Company Act of 1956, as amended (the "BHCA"). It was organized in
Delaware in 1974 and has operated under its current name and management since
1981. BancGroup operates a wholly owned commercial banking subsidiary, Colonial
Bank, in the states of Alabama, Florida, Georgia and Tennessee. Colonial Bank
conducts a full service commercial banking business through 118 branches in
Alabama, five branches in Tennessee, 14 branches in Georgia and 51 branches in
Florida. BancGroup has also entered into agreements to acquire four additional
banks. Colonial Mortgage Company, a subsidiary of the Colonial Bank in Alabama,
is a mortgage banking company which services approximately $12.3 billion in
residential loans and which originates residential mortgages in 37 states
through four divisional offices. At June 30, 1997, BancGroup had consolidated
total assets of $6.1 billion and consolidated stockholders' equity of $431.4
million. Since June 30, 1997, BancGroup has acquired four banks with aggregate
assets of $419.9 million and aggregate stockholders' equity of $40.2 million.
These acquisitions are included in the pro forma statements included herein. See
"Business of BancGroup."
 
     United American.  United American is a bank holding company within the
meaning of the BHCA and was incorporated on September 12, 1988. United American
owns all of the outstanding shares of United American Bank of Central Florida, a
Florida banking corporation (the "Bank"), which is headquartered in Orlando,
Florida. Currently, the Bank operates nine banking offices in Orange, Seminole,
and Osceola Counties, Florida. At June 30, 1997, United American had total
consolidated assets of approximately $240.9 million, total consolidated deposits
of approximately $209.9 million, and total consolidated shareholders' equity of
approximately $19.4 million. See "Business of United American."
 
THE MERGER
 
     The Agreement provides for the Merger of United American with and into
BancGroup, with BancGroup to be the surviving corporation. Upon the date of
consummation of the Merger (the "Effective Date"), each outstanding share of
United American Common Stock (except shares as to which dissenters' rights are
perfected) shall be converted by operation of law and without any action by any
holder thereof into shares of BancGroup Common Stock. The number of shares of
BancGroup Common Stock into which each
                                        1
<PAGE>   11
 
outstanding share of United American Common Stock shall be converted on the
Effective Date shall be equal to $36.50 divided by the Market Value (the "Merger
Consideration"). The "Market Value" shall represent the per share market value
of the BancGroup Common Stock at the Effective Date and shall be determined by
calculating the average of the closing prices of the BancGroup Common Stock as
reported by the NYSE on each of the ten trading days ending on the trading day
five calendar days immediately preceding the Effective Date, provided that the
Market Value shall not be less than $23.80 nor more than $32.20, regardless of
the actual Market Value as calculated. Accordingly, the maximum number of shares
of BancGroup Common Stock to be issued in the Merger shall be 2,729,218 (based
upon a minimum Market Value of $23.80), and the minimum number of shares of
BancGroup Common Stock to be issued in the Merger shall be 2,017,248 (based upon
a maximum Market Value of $32.20), based upon the 1,779,600 shares of United
American Common Stock outstanding as of September 8, 1997, the date of the
Agreement. The number of shares of BancGroup Common Stock to be issued in the
Merger will increase proportionately with each share of United American Common
Stock issued pursuant to the exercise, before the Effective Date of, certain
options to acquire United American Common Stock.
 
     No fractional shares of BancGroup Common Stock will be issued in connection
with the Merger. Each shareholder of United American otherwise entitled to
receive a fractional share of BancGroup Common Stock will receive instead a cash
payment (without interest) equal to such fractional share multiplied by the
Market Value.
 
     As of the date of this Prospectus, United American had granted options (the
"United American Options") which entitle the holders thereof to acquire up to
190,500 shares of United American Common Stock. Subject to terms of the United
American stock option plan under which such options were issued, the Agreement
provides that, no later than five days prior to the Effective Date, the holders
of United American Options that have vested for such holders may provide written
notice to United American (in form and substance reasonably satisfactory to
BancGroup) that they wish to surrender their United American Options to
BancGroup, effective at the Effective Date, and, in lieu of having their United
American Options being assumed by BancGroup as detailed in the immediately
following paragraph, to receive an amount of BancGroup Common Stock in exchange
therefor equal to the difference between the total value of the shares of
BancGroup Common Stock to be issued pursuant to such United American Options
(based upon the number of shares of BancGroup Common Stock to be issued pursuant
to the United American Options multiplied by the Market Value) less the
aggregate exercise price of such United American Options at the Effective Date,
divided by the Market Value (the "Cashless Exchange"). No fractions of shares
shall be issued and fractions shall be paid in cash at the Market Value. Any
United American Options that have not vested at the Effective Date shall be
assumed by BancGroup in accordance with the immediately following paragraph. See
"The Merger -- Cashless Exchange of Options."
 
     On the Effective Date, BancGroup shall assume all United American Options
outstanding which have not been exercised or terminated prior to the Effective
Date or converted to BancGroup Common Stock in accordance with the immediately
preceding paragraph, and each such option shall represent the right to acquire
BancGroup Common Stock on substantially the same terms applicable to the United
American Options. The number of shares of BancGroup Common Stock to be issued
pursuant to such options shall equal the number of shares of United American
Common Stock subject to such United American Options multiplied by the Exchange
Ratio, as defined below, provided that no fractions of shares of BancGroup
Common Stock shall be issued. The number of shares of BancGroup Common Stock to
be issued upon the exercise of United American Options, if a fractional share
exists, shall equal the number of whole shares obtained by rounding to the
nearest whole number, giving account to such fraction, or by paying for such
fraction in cash. The exercise price for the acquisition of BancGroup Common
Stock shall be the exercise price for each share of United American Common Stock
subject to such options divided by the Exchange Ratio, adjusted appropriately
for any rounding to whole shares that may be required. The "Exchange Ratio"
shall mean the result obtained by dividing $36.50 by the Market Value.
 
     Promptly after the Effective Date, United American shareholders will be
given notice of the consummation of the Merger and instructions for the exchange
of such shareholders' certificates representing shares of United American Common
Stock for certificates representing shares of BancGroup Common Stock.
                                        2
<PAGE>   12
 
Certificates for the shares of BancGroup Common Stock issued will not be
distributed or dividends paid on such shares until shareholders surrender their
certificates representing their shares of United American Common Stock in
accordance with those instructions. UNITED AMERICAN SHAREHOLDERS SHOULD NOT SEND
IN THEIR UNITED AMERICAN STOCK CERTIFICATES UNTIL THEY HAVE RECEIVED THE
INSTRUCTIONS.
 
     See "The Merger -- Conversion of United American Common Stock,"
"-- Surrender of United American Common Stock Certificates," "-- Treatment of
United American Options" and "-- Cashless Exchange of Options."
 
     For certain information concerning dissenters' rights, voting at the
Special Meeting, and management of BancGroup and United American, see "The
Merger -- Rights of Dissenting Shareholders," "-- Conversion of United American
Common Stock;" "The Special Meeting -- Solicitation, Voting and Revocation of
Proxies," "-- Record Date; Shares Entitled to Vote; Vote Required;" "Business of
BancGroup -- Voting Securities and Principal Shareholders," "-- Security
Ownership of Management," and "Business of United American -- Principal Holders
of Common Stock."
 
RECOMMENDATION OF UNITED AMERICAN'S BOARD OF DIRECTORS
 
     The Board of Directors of United American has unanimously approved the
Agreement. THE BOARD OF DIRECTORS OF UNITED AMERICAN BELIEVES THAT THE MERGER IS
IN THE BEST INTEREST OF THE SHAREHOLDERS OF UNITED AMERICAN AND RECOMMENDS THAT
SHAREHOLDERS VOTE FOR THE APPROVAL OF THE AGREEMENT. For a discussion of the
factors considered by the Board of Directors in reaching its conclusions, see
"The Merger -- Background of the Merger" and "THE MERGER -- United American's
Board of Directors' Reasons for Approving the Merger."
 
RELATED TRANSACTIONS -- STOCK OPTION
 
     In connection with the Agreement, United American has granted to BancGroup
an option to purchase up to 19% of the United American Common Stock at a
purchase price of $36.50 per share. The option will become exercisable upon the
occurrence of certain events which are generally related to the potential
acquisition of United American by another party. The option was granted by
United American as a condition of, and in consideration for, BancGroup's
entering into the Agreement; and, the option is intended to increase the
likelihood that the Merger will be consummated by making it more difficult and
expensive for any third party to acquire control of United American while
BancGroup is seeking to consummate the Merger. See "The Merger -- Related
Transactions -- Stock Option."
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     Certain of the directors and executive officers of United American hold
United American Options which entitle them to purchase, in the aggregate, up to
190,500 shares of United American Common Stock. Under the terms of the
Agreement, any United American Options which are not exercised or terminated
prior to the Effective Date or exchanged for BancGroup Common Stock in the
Cashless Exchange will be assumed by BancGroup. See "The Merger -- Conversion of
United American Common Stock," "-- Treatment of United American Options," and
"-- Cashless Exchange of Options."
 
     The Agreement provides that it is a condition to BancGroup's obligation to
close the Merger that each of James L. Hewitt, David G. Powers, David M. McLeod
and Russell Salerno, executive officers of United American or the Bank, enters
into an employment agreement with Colonial Bank, which will provide for (i)
terms of one year, (ii) annual salaries for Messrs. Hewitt, Powers, McLeod and
Salerno of $250,000, $130,000, $114,000 and $75,000, respectively, which amounts
are equal to their respective current salaries, (iii) the grant of options to
buy 10,000 and 5,000 shares of BancGroup Common Stock at a per share exercise
price equal to the market value as of the Effective Date to Messrs. Powers and
McLeod, respectively, such options vesting ratably over a five year period, and
(iv) non-competition agreements to run concurrently with the one year terms. M.
Alan Rowe, an officer of the Bank, will receive a lump sum severance payment of
                                        3
<PAGE>   13
 
$130,000 if his employment is terminated. BancGroup has also agreed to consider
making lump sum severance payments equal to three months to six months salary
for certain key employees.
 
     On the Effective Date, and subject to the employment agreements described
above, all employees of United American will, at BancGroup's option, either
become employees of BancGroup or its subsidiaries or be entitled to severance
benefits in accordance with Colonial Bank's severance policy as of the date of
the Agreement. All employees of United American who become employees of
BancGroup or its subsidiaries on the Effective Date will be entitled, to the
extent permitted by applicable law, to participate in all benefit plans of
BancGroup to the same extent as BancGroup's employees.
 
     On January 9, 1995, the Bank and Messrs. Hewitt, Powers, McLeod, Rowe and
Charles W. Hall (Executive Vice President and Chief Financial Officer of United
American) entered into Indexed Executive Salary Continuation Agreements ("Salary
Continuation Agreement"), which will grant them certain rights to payments upon
retirement or to their beneficiaries upon their earlier death. The amounts
payable are subject to a vesting schedule which provides that the executive is
deemed 100% vested as to benefits upon a change of control. The closing of the
Merger will constitute a change of control under the Salary Continuation
Agreements entitling each executive to receive, if his employment is
subsequently terminated, 100% of the benefits thereunder upon obtaining Normal
Retirement Age (as defined in such agreement), as if the executive had been
continuously employed by the Bank until Normal Retirement Age.
 
     James L. Hewitt will be nominated to the BancGroup Board of Directors and
will be offered the positions of Chairman and Chief Executive Officer of
Colonial Bank's Central Florida Regional Board of Directors, Chairman of the
Central Florida Region Loan Committee, Chairman of any Executive Committee that
may be established for the Central Florida Region, and will be added as a member
of Colonial Bank's Executive Committee for the State of Florida.
 
     Under the Agreement, BancGroup has agreed to indemnify the directors and
executive officers of United American against certain claims and liabilities
arising out of or pertaining to matters existing or occurring at or prior to the
Effective Date, to the extent that United American would have been authorized
under Florida law, or under its Articles of Incorporation or Bylaws, to
indemnify such persons.
 
     See "The Merger -- Interests of Certain Persons in the Merger."
 
VOTE REQUIRED
 
     Under Florida law, the Agreement must be approved by the affirmative vote
of the holders of at least a majority of the outstanding shares of United
American Common Stock. Each share of United American Common Stock is entitled to
one vote on the Agreement. Approval of the Agreement and the Merger by BancGroup
stockholders is not required under Delaware, Florida or other applicable law, or
the rules of the NYSE on which the BancGroup Common Stock is listed. See "The
Special Meeting."
 
     Only holders of record of United American Common Stock at the close of
business on the Record Date are entitled to notice of and to vote at the Special
Meeting. As of such date,           shares of United American Common Stock were
issued and outstanding. As of the Record Date, the directors and executive
officers of United American and the Bank held approximately   % of the
outstanding shares of United American Common Stock. As of the same date, the
directors, executive officers and affiliates of BancGroup held no shares of
United American Common Stock. See "The Special Meeting."
 
     The directors of United American own        shares of United American
Common Stock representing approximately   % of the outstanding shares and have
agreed with BancGroup to vote their shares in favor of the Agreement. See "The
Special Meeting." As of April 30, 1997, Directors and executive officers of
BancGroup beneficially owned in the aggregate 4,574,597 shares of BancGroup
Common Stock representing approximately 10.64% of BancGroup's outstanding
shares.
 
     Proxies should be returned to United American in the envelope enclosed
herewith. Shareholders of United American submitting proxies may revoke their
proxies by (i) giving notice of such revocation in writing to the Secretary of
United American at or prior to the Special Meeting, (ii) executing and
delivering a
                                        4
<PAGE>   14
 
proxy bearing a later date to the Secretary of United American at or prior to
the Special Meeting, or (iii) attending the Special Meeting and voting in
person. Because approval of the Agreement requires the approval of at least a
majority of the outstanding shares of United American Common Stock, failure to
submit a proxy or failure to vote in person at the Special Meeting will have the
same effect as a negative vote. See "The Special Meeting -- Solicitation, Voting
and Revocation of Proxies."
 
RIGHTS OF DISSENTING SHAREHOLDERS
 
     Holders of United American Common Stock as of the Record Date are entitled
to dissenters' rights of appraisal pursuant to Sections 607.1301, 607.1302 and
607.1320 of the Florida Business Corporation Act (the "FBCA"). The FBCA, as
described in greater detail in "The Merger -- Rights of Dissenting
Shareholders," permits a shareholder to dissent from the Merger and obtain
payment for the fair value of his shares. Such "fair value" may be determined in
a judicial proceeding, the result of which cannot be predicted. Shareholders
wishing to exercise dissenters' rights must follow strictly all requirements for
the exercise of such rights as set forth in Sections 607.1301, 607.1302 and
607.1320 of the FBCA, a copy of which is attached as Appendix B to this
Prospectus. See "The Merger -- Rights of Dissenting Shareholders." Any
shareholder who properly exercises dissenters' rights and receives cash for his
or her shares will encounter income tax treatment different from the tax
treatment of shareholders who do not exercise dissenters' rights. See "The
Merger -- Rights of Dissenting Shareholders."
 
CONDITIONS TO THE MERGER
 
     The parties' respective obligations to consummate the Merger are subject to
the satisfaction (or waiver, to the extent permitted by law) of various
conditions set forth in the Agreement.
 
     The mutual obligations of the parties to consummate the Merger are subject
to the following conditions, among others: (i) the approval of the Agreement by
the holders of at least a majority of the outstanding shares of United American
Common Stock; (ii) the notification to or approval of the Merger by The Board of
Governors of the Federal Reserve System (the "Federal Reserve") and the Florida
Department of Banking and Finance (the "Florida Department") and the approval of
the merger of the Bank with Colonial Bank (the "Bank Merger") by the Alabama
Banking Department (the "Alabama Department") and the Federal Reserve; (iii) the
absence of any pending or threatened litigation which seeks to restrain or
prohibit the Merger; (iv) the consummation of the Merger on or before April 15,
1998; (v) receipt of opinions of counsel as to certain matters; and (vi) receipt
of an opinion from Coopers and Lybrand L.L.P. as to certain tax matters.
 
     The obligation of United American to consummate the Merger is further
subject to several conditions, including: (i) the absence of any material
adverse changes in the financial condition or affairs of BancGroup; and (ii) the
shares of BancGroup Common Stock to be issued under the Agreement shall have
been approved for listing on the NYSE.
 
     The obligations of BancGroup to consummate the Merger are subject to
various conditions, including: (i) the absence of any material adverse change in
the financial condition or affairs of United American; (ii) the number of shares
as to which holders of United America Common Stock exercise dissenters' rights
not exceeding 10% of the outstanding shares of United American Common Stock; and
(iii) the receipt of a letter from Coopers & Lybrand L.L.P., BancGroup's
independent accountants, to the effect that the independent accountants concur
with the conclusions of BancGroup's and United American's respective managements
that no conditions exist with respect to each company which would preclude
accounting for the Merger as a pooling of interests.
 
     Applications for appropriate regulatory approvals by the Federal Reserve,
the Florida Department and the Alabama Department were filed with such agencies
on or about        , 1997. The regulatory approval process is expected to take
approximately two months from that date. NO ASSURANCE CAN BE PROVIDED THAT THE
NECESSARY SHAREHOLDER AND REGULATORY APPROVALS CAN BE OBTAINED OR THAT THE OTHER
CONDITIONS PRECEDENT TO THE MERGER CAN OR WILL BE SATISFIED. BANCGROUP AND
UNITED AMERICAN ANTICIPATE THAT THE MERGER WILL BE
                                        5
<PAGE>   15
 
CONSUMMATED DURING THE FIRST QUARTER OF 1998. HOWEVER, DELAYS IN THE
CONSUMMATION OF THE MERGER COULD OCCUR.
 
     See "The Merger -- Conditions to Consummation of the Merger" and
"Regulatory Approvals."
 
AMENDMENT OR TERMINATION OF AGREEMENT
 
     To the extent permitted by law, the Agreement may be amended by a
subsequent writing signed by each of the parties upon the approval of the Boards
of Directors of each of the parties. However, after adoption of the Agreement
and the merger by the holders of United American Common Stock, no amendment
decreasing the consideration to be received by United American stockholders may
be made without the further approval of such stockholders. Such amendments may
require the filing with the Commission of an amendment of the Registration
Statement, of which this Prospectus forms a part. The Agreement may be
terminated at any time prior to or on the Effective Date, whether before or
after adoption of the Agreement by the stockholders of United American, by the
mutual consent of the respective Boards of Directors of United American and
BancGroup, or by the Board of Directors of either BancGroup or United American
under certain circumstances including, but not limited to, the failure of the
transactions contemplated by the Agreement to be consummated on or prior to
April 15, 1998, if such failure to consummate is not caused by any breach of the
Agreement by the party electing to terminate. See "THE MERGER -- Amendment or
Termination of Agreement."
 
COMPARATIVE RIGHTS OF SHAREHOLDERS
 
     The rights of the holders of the United American Common Stock may be
different from the rights of the holders of the BancGroup Common Stock. A
discussion of these rights and a comparison thereof is set forth at "Comparative
Rights of Stockholders."
 
FEDERAL INCOME TAX CONSEQUENCES
 
     No ruling with respect to the federal income tax consequences of the Merger
to United American's shareholders will be requested from the Internal Revenue
Service (the "IRS"). United American has received an opinion from Coopers &
Lybrand L.L.P., that, among other things, a shareholder of United American who
exchanges shares of United American Common Stock for BancGroup Common Stock will
not recognize gain except that, shareholders of United American will recognize
gain to the extent such shareholders receive cash in lieu of fractional shares
of BancGroup Common Stock. Shareholders who receive cash for their shares of
United American Common Stock upon perfection of dissenters' rights will realize
gain or loss for federal income tax purposes with respect to such shares. See
"Approval of the Merger -- Certain Federal Income Tax Consequences." United
American shareholders are urged to consult their own tax advisors as to the
specific tax consequences to them of the Merger.
 
ACCOUNTING TREATMENT
 
     The merger of United American into BancGroup will be treated as a
"pooling-of-interests" transaction by BancGroup for accounting purposes. See
"The Merger -- Accounting Treatment."
                                        6
<PAGE>   16
 
RECENT PER SHARE MARKET PRICES
 
     United American.  There is no established public trading market for the
United American Common Stock. The shares of United American Common Stock are not
actively traded, and such trading activity, as it occurs, takes place in
privately negotiated transactions. Management of United American is aware of
certain transactions in shares of United American that have occurred since
January 1, 1995, although the trading prices of all stock transactions are not
known. The following table sets forth the trading prices for the shares of
United American Common Stock that have occurred since January 1, 1995 for
transactions in which the trading prices are known to management of United
American:
 
<TABLE>
<CAPTION>
                                                       PRICE PER SHARE
                                                       OF COMMON STOCK        DIVIDENDS
                                                      ------------------         PER
                                                       HIGH        LOW          SHARE
                                                      ------      ------      ---------
<S>                                                   <C>         <C>         <C>
1995
First Quarter.......................................      --          --          --
Second Quarter......................................  $10.00      $10.00          --
Third Quarter.......................................      --          --          --
Fourth Quarter......................................   10.00       10.00          --
1996
First Quarter.......................................   10.00       10.00        $.50
Second Quarter......................................      --          --          --
Third Quarter.......................................      --          --          --
Fourth Quarter......................................      --          --          --
1997
First Quarter.......................................   10.00       10.00         .50
Second Quarter......................................   15.00       10.00          --
Third Quarter.......................................   20.00       10.00          --
Fourth Quarter (through October 31, 1997)...........      --          --          --
</TABLE>
 
     In March, 1995, United American sold 659,200 shares of United American
Common Stock in a private placement transaction at $10.00 per share. Each United
American shareholder of record on January 31, 1995 who purchased shares of
United American Common Stock in the offering, also was issued a nontransferable
stock purchase warrant entitling the shareholder to purchase for each two shares
of United American Common Stock purchased in the offering an additional share of
United American Common Stock on or before July 1, 1997 at a per share amount
equal to $10.00. An aggregate of 220,100 stock purchase warrants were issued in
the offering, all of which were exercised for shares of United American Common
Stock before July 1, 1997. On August 22, 1997, United American issued an
aggregate of 59,500 shares of United American Common Stock, valued at $20.00 per
share, to acquire an entity (owned in part by certain directors of United
American) which owned United American's main office and certain property
adjacent to the office. See "BUSINESS OF UNITED AMERICAN -- Properties."
                                        7
<PAGE>   17
 
     BancGroup.  BancGroup Common Stock is listed for trading on the NYSE under
the symbol "CNB." The following table indicates the high and low closing prices
of the BancGroup Class A Common Stock and the BancGroup Common Stock as reported
on the Nasdaq National Market System ("the Nasdaq NMS") and the NYSE,
respectively, for the last two full fiscal years. Prior to February 21, 1995,
BancGroup had two classes of Common Stock outstanding, Class A and Class B.
Class B was not publicly traded. Class A was traded on the Nasdaq NMS under the
symbol "CLBGA" until February 24, 1995. On February 21, 1995, the BancGroup
Class A and Class B Common Stock were reclassified into BancGroup Common Stock.
 
<TABLE>
<CAPTION>
                                                               PRICE PER SHARE OF
                                                                COMMON STOCK(1)
                                                              --------------------
                                                               HIGH          LOW
                                                              -------      -------
<S>                                                           <C> <C>      <C> <C>
1995
First Quarter(2)............................................  $11 13/16    $ 9 3/4
Second Quarter..............................................   13 5/8       11 9/16
Third Quarter...............................................   14 15/16     13 3/4
Fourth Quarter..............................................   16 7/16      14 1/4
1996
First Quarter...............................................   18 1/4       15
Second Quarter..............................................   18 1/16      15 5/8
Third Quarter...............................................   17 15/16     15 5/8
Fourth Quarter..............................................   20 1/8       17 3/8
1997
First Quarter...............................................   24           18 2/3
Second Quarter..............................................   24 7/8       22
Third Quarter...............................................   29 3/16      24 1/4
Fourth Quarter (through October 20, 1997)...................   29 15/16     28 15/16
</TABLE>
 
- ---------------
 
(1) Restated to reflect the impact of a two-for-one stock split effected in the
    form of a 100% stock dividend paid February 11, 1997.
(2) Trading on the NYSE commenced on February 24, 1995.
 
     On September 8, 1997, the business day immediately prior to the public
announcement of the Merger, the closing price of the BancGroup Common Stock on
the NYSE was $27.9375 per share. The following table presents the market value
per share of BancGroup Common Stock on that date, and the market value and
equivalent per share value of United American Common Stock on that date:
 
<TABLE>
<CAPTION>
                                                                               EQUIVALENT
                                           BANCGROUP      UNITED AMERICAN       PRICE PER
                                          COMMON STOCK     COMMON STOCK      UNITED AMERICAN
                                              (1)               (2)             SHARE(3)
                                          ------------    ---------------    ---------------
<S>                                       <C>             <C>                <C>
Comparative Market Value................    $27.9375          $20.00             $36.50
</TABLE>
 
- ---------------
(1) Closing price as reported by the NYSE on September 8, 1997.
(2) There is no established public trading market for the shares of United
    American Common Stock. The value shown is the price at which shares of
    United American Common Stock were issued on August 22, 1997, and was the
    last sale price prior to the public announcement of the Merger on September
    9, 1997, of which management of United American is aware.
(3) If the Merger had closed on September 8, 1997, assuming the Market Value had
    also been $27.9375, 1.306 (36.50 divided by 27.9375) shares of BancGroup
    Common Stock would have been exchanged for each share of United American
    Common Stock.
 
     See "Comparative Market Prices and Dividends."
 
CERTAIN LEGAL RESTRICTIONS ON ACQUISITIONS OF CONTROL
 
     Certain restrictions under Delaware law prevent a person who beneficially
owns 15% or more of the BancGroup Common Stock from engaging in a "business
combination" with BancGroup unless certain
                                        8
<PAGE>   18
 
conditions are satisfied. Also, the Change in Bank Control Act of 1978 prohibits
a person from acquiring "control" of BancGroup unless certain notice provisions
with the Federal Reserve Board have been satisfied.
 
     BancGroup's Restated Certificate of Incorporation (the "BancGroup
Certificate") and its Bylaws also contain provisions which may deter or prevent
a takeover of BancGroup that is not supported by BancGroup's Board of Directors.
These provisions include: (1) a classified board of directors, (2) supermajority
voting requirements for certain "business combinations" that exceed the
provisions of Delaware law described above, (3) flexibility for the board to
consider non-economic and other factors in evaluating a "business combination,"
(4) inability of Shareholders to call special meetings and act by written
consent, and (5) certain advance notice provisions for the conduct of business
at Shareholder meetings.
 
     See "BancGroup Capital Stock and Debentures" and "Comparative Rights of
Shareholders."
 
PER SHARE DATA
 
     The table below presents on a per share basis the book value, cash
dividends and income from continuing operations of BancGroup and United American
on a historical basis and on a pro forma equivalent basis assuming consummation
of the Merger. Certain information from the table has been taken from the
condensed pro forma statements of condition and income included elsewhere in
this document. The table should be read in conjunction with those pro forma
statements.
 
                                 PER SHARE DATA
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS      SIX MONTHS      YEAR     YEAR    YEAR
                                                                 ENDED           ENDED       ENDED    ENDED    ENDED
                                                             JUNE 30, 1997   JUNE 30, 1996    1996     1995    1994
                                                             -------------   -------------   ------   ------   -----
<S>                                                          <C>             <C>             <C>      <C>      <C>
BANCGROUP -- HISTORICAL (AS RESTATED):
Net income
  Primary*.................................................     $ 0.88          $ 0.78       $ 1.26   $ 1.23   $0.96
  Fully diluted*...........................................       0.87            0.77         1.25     1.19    0.95
Book value at end of period*...............................      10.54           10.11        10.29     9.43    7.93
Dividends per share:
  Common Stock*............................................       0.30            0.27         0.54   0.3375
  Common A*................................................                                           0.1125    0.40
  Common B*................................................                                           0.0825    0.20
UNITED AMERICAN
Net income
  Historical:
    Primary................................................       0.72            0.69         1.66     1.24    0.94
    Fully diluted..........................................       0.72            0.69         1.66     1.24    0.94
  Pro forma equivalent assuming combination with United
    American and completed business combinations(a):
    Primary................................................       0.97            0.94         1.51     1.46    1.17
    Fully diluted..........................................       0.96            0.93         1.48     1.42    1.15
  Pro forma equivalent assuming combination with United
    American and other proposed business combinations(a):
    Primary................................................       0.96            0.93         1.51     1.44    1.18
    Fully diluted..........................................       0.94            0.92         1.48     1.41    1.17
Book value at end of period
  Historical...............................................      11.33            9.90        10.93     9.79    7.42
  Pro forma equivalent assuming combination with United
    American(a)............................................      13.15             N/A          N/A      N/A     N/A
  Pro forma equivalent assuming combination with United
    American and other proposed business
    combinations(a):.......................................      13.30             N/A          N/A      N/A     N/A
Dividends per share
  Historical...............................................       0.50            0.50         0.00     0.00    0.00
  Pro forma equivalent assuming combination with United
    American(b)............................................       0.37            0.33         0.66     0.55    0.49
  Pro forma equivalent assuming combination with United
    American and other proposed business
    combinations(b):.......................................       0.37            0.33         0.66     0.55    0.49
</TABLE>
 
                                        9
<PAGE>   19
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS      SIX MONTHS      YEAR     YEAR    YEAR
                                                                 ENDED           ENDED       ENDED    ENDED    ENDED
                                                             JUNE 30, 1997   JUNE 30, 1996    1996     1995    1994
                                                             -------------   -------------   ------   ------   -----
<S>                                                          <C>             <C>             <C>      <C>      <C>
BANCGROUP -- PRO FORMA COMBINED (UNITED AMERICAN AND
  COMPLETED BUSINESS COMBINATIONS):
Net income
  Primary..................................................       0.79            0.77         1.23     1.19    0.95
  Fully diluted............................................       0.78            0.76         1.21     1.16    0.94
Book value at end of period................................      10.24             N/A          N/A      N/A     N/A
BANCGROUP -- PRO FORMA COMBINED (UNITED AMERICAN AND OTHER
  PROPOSED BUSINESS COMBINATIONS):
Net income
  Primary..................................................       0.78            0.76         1.23     1.17    0.96
  Fully diluted............................................       0.77            0.76         1.21     1.15    0.95
Book value at end of period................................      10.84             N/A          N/A      N/A     N/A
</TABLE>
 
- ---------------
 
           *
     Restated to reflect the impact of a two-for-one stock split effected in the
     form of a 100% stock dividend paid February 11, 1997.
N/A  Not applicable due to pro forma balance sheet being presented only at June
     30, 1997 which assumes the transaction was consummated on the latest
     balance sheet date in accordance with Rule 11.02(b) of Regulation S-X.
(a)  Pro forma equivalent per share amounts are calculated by multiplying the
     pro forma combined total income per share and the pro forma combined total
     book value per share of BancGroup by the conversion ratio so that the per
     share amounts are equated to the respective values for one share of United
     American. For the purposes of these pro forma equivalent per share amounts,
     a 1.227 BancGroup common stock share conversion ratio is utilized. The
     ratio is based on a ten-day average of the closing market price of Colonial
     BancGroup, Inc. common stock of $29.75 ($36.50/29.75 = 1.227).
(b)  Pro forma equivalent dividends per share are shown at BancGroup's Common
     Stock dividend per share rate multiplied by the 1.227 conversion ratio per
     share of United American common stock (see note (a)). BancGroup presently
     contemplates that dividends will be declared in the future. However, the
     payment of cash dividends is subject to BancGroup's actual results of
     operations as well as certain other internal and external factors.
     Accordingly, there is no assurance that cash dividends will either be
     declared and paid in the future, or, if declared and paid, that such
     dividends will approximate the pro forma amounts indicated.
                                       10
<PAGE>   20
 
                              THE SPECIAL MEETING
 
GENERAL
 
     This Prospectus is being furnished to the shareholders of United American
in connection with the solicitation of proxies by the Board of Directors of
United American for use at the Special Meeting and at any adjournments or
postponements thereof. The purpose of the Special Meeting is to consider and
vote upon the Agreement which provides for the proposed Merger of United
American with and into BancGroup. BancGroup will be the surviving corporation in
the Merger.
 
     THE BOARD OF DIRECTORS OF UNITED AMERICAN BELIEVES THAT THE MERGER IS IN
THE BEST INTERESTS OF UNITED AMERICAN SHAREHOLDERS AND UNANIMOUSLY RECOMMENDS
THAT SHAREHOLDERS VOTE "FOR" THE AGREEMENT (ITEM 1 ON THE PROXY CARD).
 
     This Prospectus is also furnished by BancGroup in connection with the offer
of shares of BancGroup Common Stock to be issued in the Merger. No vote of
BancGroup shareholders is required to approve the Merger.
 
RECORD DATE; SHARES ENTITLED TO VOTE; VOTE REQUIRED FOR THE MERGER
 
     The Board of Directors of United American has fixed the close of business
on           , 1997, as the Record Date for determination of shareholders
entitled to vote at the Special Meeting. There were
record holders of United American Common Stock and      shares of United
American Common Stock outstanding, each entitled to one vote per share, as of
the Record Date. United American is obligated to issue an additional 190,500
shares of United American Common Stock upon the exercise of outstanding United
American Options.
 
     The presence at the Special Meeting, in person or by proxy, of the holders
of a majority of the outstanding shares of United American Common Stock on the
Record Date is necessary to constitute a quorum for the transaction of business
at the Special Meeting. In the absence of a quorum, the Special Meeting may be
postponed from time to time until United American shareholders holding the
requisite number of shares of United American Common Stock are represented in
person or by proxy. If a quorum is present, the affirmative vote of the holders
of at least a majority of the outstanding shares of United American Common
Stock, whether or not present or represented at the Special Meeting, is required
to approve the Agreement. Broker non-votes and abstentions will not be counted
as votes cast "FOR" or "AGAINST" the proposal to approve the Agreement, and, as
a result, such non-votes will have the same effect as votes cast "AGAINST" the
Agreement. Each holder of record of shares of United American Common Stock is
entitled to cast, for each share registered in his or her name, one vote on the
Agreement as well as on each other matter presented to a vote of shareholders at
the Special Meeting.
 
     As of the Record Date, directors of United American owned      shares of
United American Common Stock representing approximately   % of the outstanding
shares. These individuals have agreed with BancGroup to vote their shares in
favor of the Merger.
 
     If the Agreement is approved at the Special Meeting, United American is
expected to merge with and into BancGroup promptly after the other conditions to
the Agreement are satisfied. See "The Merger -- Conditions of Consummation of
the Merger."
 
     THE BOARD OF DIRECTORS OF UNITED AMERICAN URGES THE SHAREHOLDERS OF UNITED
AMERICAN TO EXECUTE AND RETURN THE ENCLOSED PROXY CARD AS SOON AS POSSIBLE AND
UNANIMOUSLY RECOMMENDS THAT THE SHARES REPRESENTED BY THE PROXY BE VOTED IN
FAVOR OF THE AGREEMENT.
 
SOLICITATION, VOTING AND REVOCATION OF PROXIES
 
     In addition to soliciting proxies by mail, directors, officers and other
employees of United American, without receiving special compensation therefor,
may solicit proxies from United American's shareholders by
 
                                       11
<PAGE>   21
 
telephone, by telegram or in person. Arrangements will also be made with
brokerage firms and other custodians, nominees and fiduciaries, if any, to
forward solicitation materials to any beneficial owners of shares of United
American Common Stock.
 
     United American will bear the cost of assembling and mailing this
Prospectus and other materials furnished to shareholders of United American. It
will also pay all other expenses of solicitation, including the expenses of
brokers, custodians, nominees, and other fiduciaries who, at the request of
United American, mail material to, or otherwise communicate with, beneficial
owners of the shares held by them. BancGroup will pay all expenses incident to
the registration of the BancGroup Common Stock to be issued in connection with
the Merger.
 
     Shares of United American Common Stock represented by a proxy properly
signed and received at or prior to the Special Meeting, unless properly revoked,
will be voted in accordance with the instructions on the proxy. If a proxy is
signed and returned without any voting instructions, shares of United American
Common Stock represented by the proxy will be voted "FOR" the proposal to
approve the Agreement and in accordance with the determination of the majority
of the Board of Directors of United American as to any other matter which may
properly come before the Special Meeting, including any adjournment or
postponement thereof. A shareholder may revoke any proxy given pursuant to this
solicitation by: (i) delivering to the Secretary of United American, prior to or
at the Special Meeting, a written notice revoking the proxy; (ii) delivering to
the Secretary of United American, at or prior to the Special Meeting, a duly
executed proxy relating to the same shares and bearing a later date; or (iii)
voting in person at the Special Meeting. Attendance at the Special Meeting will
not, in and of itself, constitute a revocation of a proxy. All written notices
of revocation and other communications with respect to the revocation of United
American's proxies should be addressed to:
 
                      United American Holding Corporation
                            105 West Colonial Drive
                             Orlando, Florida 32801
  Attention: James L. Hewitt, Chairman, President and Chief Executive Officer
 
     Proxies marked as abstentions and shares held in street name which have
been designated by brokers on proxy cards as not voted will not be counted as
votes cast. Such proxies will, however, be counted for purposes of determining
whether a quorum is present at the Special Meeting.
 
     The Board of Directors of United American is not aware of any business to
be acted upon at the Special Meeting other than consideration of the Agreement
and the Merger described herein. If, however, other matters are properly brought
before the Special Meeting, or any adjournments or postponements thereof, the
persons appointed as proxies will have the discretion to vote or act on such
matters according to their best judgment. Proxies voted in favor of the approval
of the Agreement, or proxies as to which no voting instructions are given, will
be voted to adjourn the Special Meeting, if necessary, in order to solicit
additional proxies in favor of the approval of the Agreement. Proxies voted
against the approval of the Agreement and abstentions will not be voted for an
adjournment. See "Adjournment of the Special Meeting."
 
EFFECT OF MERGER ON OUTSTANDING BANCGROUP COMMON STOCK
 
     Assuming that no dissenters' rights of appraisal are exercised in the
Merger, that 90,500 United American Options are exercised prior to the Effective
Date, that no United American Options are exchanged in the Cashless Exchange,
and the Market Value of BancGroup Common Stock is $29.75 on the Effective Date
(which was the Market Value calculated as of October 21, 1997), BancGroup will
issue 2,294,613 shares of BancGroup Common Stock to the shareholders of United
American pursuant to the Merger. Based on those assumptions, the 2,294,613
shares of BancGroup Common Stock will represent approximately 5.18% of the total
number of shares of BancGroup Common Stock outstanding following the Merger, not
counting any additional shares BancGroup may issue, including shares to be
issued pursuant to other pending acquisitions.
 
                                       12
<PAGE>   22
 
                                   THE MERGER
 
     The following sets forth a summary of the material provisions of the
Agreement and the transactions contemplated thereby. The description does not
purport to be complete and is qualified in its entirety by reference to the
Agreement attached hereto as Appendix A and certain provisions of Florida law
relating to the rights of dissenting shareholders, a copy of which is attached
hereto as Appendix B. All United American shareholders are urged to read the
Agreement and the Appendices in their entirety.
 
GENERAL
 
     The Agreement provides that, subject to approval by the shareholders of
United American, receipt of necessary regulatory approvals and satisfaction of
certain other conditions described below at "Conditions to Consummation of the
Merger," United American will merge with and into BancGroup. Upon completion of
the Merger, the corporate existence of United American will cease, and BancGroup
will succeed to the business formerly conducted by United American.
 
BACKGROUND OF THE MERGER
 
     On November 21, 1996, James L. Hewitt (the Chairman, Chief Executive
Officer and President of United American) met with Robert E. Lowder (the
Chairman, Chief Executive Officer and President of BancGroup). Mr. Hewitt had
been contacted by a BancGroup representative to arrange a meeting with Mr.
Lowder to discuss United American's possible interest in pursuing a merger with
BancGroup. Messrs. Lowder and Hewitt discussed the philosophies and directions
of their respective organizations. Among other things, Mr. Hewitt indicated that
United American was interested in pursuing a possible public offering for its
shares during the next several years, unless an alternative was presented that
would bring greater value to United American shareholders. The meeting did not
lead to any further discussions or exchange of information between the two
organizations.
 
     During the last week of July, 1997, a BancGroup representative contacted
Mr. Hewitt and indicated that Mr. Lowder would be in the Orlando area during
that week and was interested in further discussions regarding a possible merger
between BancGroup and United American. On July 27, 1997, Messrs. Lowder and
Hewitt met. During the meeting, Mr. Lowder discussed BancGroup's history and
prospects and its interest in acquiring United American. Mr. Hewitt similarly
reviewed United American's progress since the prior meeting with Mr. Lowder in
November, 1996, including the growth of United American's assets and its opening
of new offices. They also discussed the benefits of a transaction to their
respective organizations, including the possible value to United American
shareholders and the strategic advantage of a merger due to the lack of overlap
between the BancGroup and United American banking offices in the Central Florida
area. The parties discussed pricing issues related to a possible transaction,
and agreed that certain information regarding United American would be forwarded
to BancGroup for its review. Mr. Lowder also delivered to Mr. Hewitt copies of
certain BancGroup filings with the Commission during the prior 12 months.
Following the meeting, United American sent information regarding its financial
condition and operations to BancGroup.
 
     On August 7, 1997, Mr. Hewitt traveled to BancGroup's executive offices in
Montgomery, Alabama, and met with Mr. Lowder and W. Flake Oakley, IV, the Chief
Financial Officer of BancGroup. The representatives discussed information
regarding BancGroup and United American and reviewed pricing and related issues.
During the meeting, the parties agreed in principal to the terms and conditions
of a possible transaction, including the receipt by United American shareholders
of $36.50 in value per share in an exchange of BancGroup Common Stock, subject a
minimum and maximum number of BancGroup shares to be issued and BancGroup's due
diligence review of United American. On August 8, 1997, Mr. Hewitt met with the
outside directors of United American to review certain information regarding
BancGroup and the terms of a proposed transaction. The directors concurred that
United American should continue negotiation of a merger transaction with
BancGroup in accordance with the terms proposed at the August 7 meeting.
 
     On August 11, 1997, BancGroup and United American entered into a
Confidentiality Agreement. During mid to late August, BancGroup performed a due
diligence review of United American. On August 25, 1997, BancGroup forwarded to
United American a draft definitive agreement and a related stock option
agreement
 
                                       13
<PAGE>   23
 
pursuant to which BancGroup would be granted an option to acquire at an exercise
price of $36.50 per share up to 19% of the outstanding shares of United American
Common Stock under certain circumstances.
 
     From August 25, 1997 to September 8, 1997, representatives of BancGroup and
representatives of United American negotiated the terms of the definitive
agreement and the stock option agreement. On September 8, 1997, a special
meeting of the United American Board of Directors was held in which United
American's legal counsel participated. During this meeting, legal counsel
reviewed generally for United American's Board of Directors the fiduciary
obligations of directors in mergers of financial institutions. Following
discussion and review by the United American Board of Directors of the terms and
conditions of the Agreement and the stock option agreement (the "Option
Agreement"), the Merger and related information and issues, the Board of
Directors unanimously approved the Agreement and the Option Agreement and the
transactions contemplated thereby. BancGroup and United American signed the
Agreement and the Option Agreement as of September 8, 1997.
 
UNITED AMERICAN'S BOARD OF DIRECTORS' REASONS FOR APPROVING THE MERGER
 
     United American's Board of Directors believes that the Merger is in the
best interests of United American and its shareholders. The Board of Directors
of United American considered a number of factors in deciding to approve and
recommend the terms of the Agreement to United American shareholders, including,
among other things, (i) the terms of the proposed transaction; (ii) the
financial condition, results of operations, and future prospects of United
American; (iii) the value of the consideration to be received by United American
shareholders relative to the book value and earnings per share of United
American Common Stock; (iv) the competitive and regulatory environment for
financial institutions generally; (v) the fact that the Merger will enable
United American shareholders to exchange their shares of United American Common
Stock for shares of common stock of a larger and more diversified entity, the
stock of which is more widely held and more actively traded; (vi) that the
Merger will enable United American shareholders to hold stock in a financial
institution that has historically paid higher cash dividends for a longer term
to its shareholders as compared to United American, which commenced paying
dividends in 1996; (vii) the likelihood of receiving the requisite regulatory
approvals; (viii) that it is expected that the Merger will be a tax-free
transaction (except in respect of cash received for United American Common
Stock) for federal income tax purposes; (ix) that the Merger affords an
opportunity to minimize the potential displacement of United American employees
due to the lack of overlap in the banking officer of BancGroup and United
American; and (x) other information. The foregoing discussion of the information
and factors considered by the Board of Directors is a summary and is not
intended to be complete. The United American Board of Directors did not assign
any relative or specific weights to the foregoing factors, and individual
directors may have given different weights to different factors.
 
RECOMMENDATION OF THE BOARD OF DIRECTORS OF UNITED AMERICAN
 
     The Board of Directors of United American has determined that the Merger is
in the best interest of United American shareholders. THE BOARD OF DIRECTORS
UNANIMOUSLY RECOMMENDS THAT THE SHAREHOLDERS OF UNITED AMERICAN VOTE IN FAVOR OF
THE APPROVAL AND ADOPTION OF THE MERGER AND THE AGREEMENT.
 
BANCGROUP'S REASONS FOR THE MERGER
 
     The Board of Directors of BancGroup has unanimously approved the Merger and
the Agreement. BancGroup has been seeking to expand its banking operations in
the state of Florida. BancGroup currently operates a commercial bank with
branches in the Orlando, Ormond Beach, Tampa, Ft. Myers, Winter Haven, West Palm
Beach, Miami and the Miami Beach areas, with acquisitions pending in the Bonita
Springs and St. Petersburg areas. The Board of Directors of BancGroup believes
that the combination with United American and the Bank is consistent with that
expansion strategy.
 
     In approving the Merger and the Agreement, the Board of Directors of
BancGroup took into account: (i) the financial performance and condition of
United American, including its capital and asset quality;
 
                                       14
<PAGE>   24
 
(ii) similarities in the philosophies of BancGroup and United American,
including United American's commitment to delivering high quality personalized
financial services to its customers; and (iii) United American's management's
knowledge of, and experience in, the Central Florida market.
 
RELATED TRANSACTIONS -- STOCK OPTION
 
     United American and BancGroup have entered into the Option Agreement
whereby United American has granted to BancGroup an option to purchase up to
338,124 shares of United American Common Stock at a purchase price of $36.50 per
share. The Option Agreement is attached hereto as Appendix C. See "-- Background
of the Merger." Both the number of shares subject to the option and the purchase
price per option share are subject to adjustment in certain circumstances. The
Option Agreement was entered into as an inducement for, and as a condition to,
BancGroup's execution of the Agreement. The Option Agreement is intended to
increase the likelihood that the Merger will be consummated by making it more
difficult and expensive for a third party to acquire control of United American
while BancGroup is seeking to consummate the Merger.
 
     The option granted under the Option Agreement may be exercised by
BancGroup, in whole or in part, in the event a "Purchase Event" precedes the
termination of the Agreement. If the option becomes exercisable, United American
may be required to repurchase the option or any shares issued thereunder at a
price calculated in accordance with the Option Agreement. In addition, under
certain circumstances, the option may be converted into a similar option to
acquire shares of an entity engaging in certain transactions with United
American.
 
     The term "Purchase Event" is defined to include: (i) United American's
agreement, without BancGroup's prior written consent, to effect an "Acquisition
Transaction" with any person other than BancGroup, or United American's
authorization, recommendation, or public proposal of (or public announcement of
its intention to authorize, recommend, or propose) such an agreement; or (ii)
the acquisition by any person of beneficial ownership of 25% or more of the
outstanding shares of United American Common Stock. The term "Acquisition
Transaction" is defined to include: (i) a merger, consolidation, or other
business combination involving United American; (ii) the disposition, by sale,
exchange, lease, or otherwise, of substantially all of the consolidated assets
of United American; or (iii) the issuance of securities representing 25% or more
of the voting power of United American.
 
     The Option Agreement and the option granted thereunder terminate upon the
earliest to occur of: (i) the Effective Date; (ii) termination of the Agreement
in accordance with its terms prior to the occurrence of a Purchase Event or a
"Preliminary Purchase Event" (generally, a tender offer or exchange offer by a
third party to acquire more than 25% of the outstanding shares of United
American Common Stock or the failure of United American's shareholders to
approve the Merger following the public announcement of a proposed Acquisition
Transaction or tender offer); (iii) termination of the Agreement by BancGroup
prior to the occurrence of a Purchase Event or a Preliminary Purchase Event for
reasons other than a breach of the Agreement by United American or the failure
to occur of certain conditions precedent to the Merger; or (iv) the passage of
eighteen months after termination of the Agreement by BancGroup because of a
material breach of the Agreement by United American, or the failure to occur of
certain conditions precedent to the consummation of the Merger.
 
     To the knowledge of United American, no event that would permit the
exercise of the option has occurred as of the date hereof. The rights and
obligations of United American and BancGroup under the Option Agreement are
subject to receipt of any required regulatory approval, including approval by
the Federal Reserve under the BHCA.
 
     The Option Agreement, together with United American's agreement not to
negotiate or entertain any proposals for the sale of United American or its
subsidiaries to another party (see "The Merger -- Commitments with Respect to
Other Offers"), have the effect of discouraging persons who might now, or prior
to the Effective Date, be interested in acquiring all or a significant interest
in United American from considering or proposing such an acquisition, even if
such persons were prepared to pay a higher price per share for the United
American Common Stock than the price per share to be paid by Bancgroup in the
 
                                       15
<PAGE>   25
 
Merger. The option granted to BancGroup under the Option Agreement will become
exercisable in the event of the occurrence of certain proposals to acquire
United American or the Bank. The possibility that BancGroup might exercise the
option, and thus acquire a substantial block of United American Common Stock,
might deter offers of other bidders interested in such an acquisition.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     Certain of the directors and executive officers of United American hold
United American Options which entitle them to purchase, in the aggregate, up to
190,500 shares of United American Common Stock. Under the terms of the
Agreement, any United American Options which are not exercised or terminated
prior to the Effective Date or exchanged for BancGroup Common Stock in the
Cashless Exchange will be assumed by BancGroup. See "The Merger -- Conversion of
United American Common Stock," "-- Treatment of United American Options," and
"-- Cashless Exchange of Options."
 
     The Agreement provides as a condition to BancGroup's obligation to the
Merger that each of James L. Hewitt, David G. Powers, David M. McLeod and
Russell Salerno, executive officers of United American or the Bank, enters into
an employment agreement with Colonial Bank, which will provide for (i) terms of
one year, (ii) annual salaries for Messrs. Hewitt, Powers, McLeod and Salerno of
$250,000, $130,000, $114,000 and $75,000, respectively, which amounts are equal
to their respective current salaries, (iii) the grant of options to buy 10,000
and 5,000 shares of BancGroup Common Stock at a per share exercise price equal
to the market value as of the Effective Date to Messrs. Powers and McLeod,
respectively, such options vesting ratably over a five year period, and (iv)
non-competition agreements to run concurrently with the one year terms. M. Alan
Rowe, an officer of the Bank, will receive a lump sum severance payment of
$130,000 if his employment is terminated. BancGroup has also agreed to consider
making lump sum severance payments equal to three months to six months salary
for certain key employees.
 
     On the Effective Date, and subject to the employment agreements described
above, all employees of United American will, at BancGroup's option, either
become employees of BancGroup or its subsidiaries or be entitled to severance
benefits in accordance with Colonial Bank's severance policy as of the date of
the Agreement. All employees of United American who become employees of
BancGroup or its subsidiaries on the Effective Date will be entitled, to the
extent permitted by applicable law, to participate in all benefit plans of
BancGroup to the same extent as BancGroup's employees.
 
     On January 9, 1995, the Bank and Messrs. Hewitt, Powers, McLeod, Rowe and
Charles W. Hall (Executive Vice President and Chief Financial Officer of United
American) entered into Indexed Executive Salary Continuation Agreements ("Salary
Continuation Agreement"), which will grant them certain rights to payments upon
retirement or to their beneficiaries upon their earlier death. The amounts
payable are subject to a vesting schedule which provides that the executive is
deemed 100% vested as to benefits upon a change of control. The closing of the
Merger will constitute a change of control under the Salary Continuation
Agreements entitling each executive to receive, if his employment is
subsequently terminated, 100% of the benefits thereunder upon obtaining Normal
Retirement Age (as defined in such agreement), as if the executive had been
continuously employed by the Bank until Normal Retirement Age.
 
     James L. Hewitt will be nominated to the BancGroup Board of Directors and
will be offered the positions of Chairman and Chief Executive Officer of
Colonial Bank's Central Florida Regional Board of Directors, Chairman of the
Central Florida Region Loan Committee, Chairman of any Executive Committee that
may be established for the Central Florida Region and will be added as a member
of the Colonial Bank's Executive Committee for the State of Florida.
 
     Under the Agreement, BancGroup has agreed to indemnify the directors and
executive officers of United American against certain claims and liabilities
arising out of or pertaining to matters existing or occurring at or prior to the
Effective Date, to the extent that United American would have been authorized
under Florida law, or under its Articles of Incorporation or Bylaws, to
indemnify such persons.
 
                                       16
<PAGE>   26
 
CONVERSION OF UNITED AMERICAN COMMON STOCK
 
     On the Effective Date, each share of United American Common Stock
outstanding and held by United American's shareholders (except shares as to
which dissenters' rights are perfected) will be converted by operation of law
and without any action by any holder thereof into shares of BancGroup Common
Stock. The number of shares, or fractions of a share of BancGroup Common Stock
into which each outstanding share of United American Common Stock on the
Effective Date will be converted, will be equal to $36.50 divided by the Market
Value. The Market Value will be the average of the closing prices of the Common
Stock of BancGroup as reported by the NYSE on each of the ten consecutive
trading days ending on the trading day five calendar days immediately preceding
the Effective Date, provided that the Market Value will not be less than $23.80
nor more than $32.20, regardless of the actual market value as calculated.
Accordingly, based upon the 1,779,600 shares of United American Common Stock
outstanding as of the September 8, 1997 date of the Agreement the maximum number
of shares of BancGroup Common Stock that may be issued in the Merger will be
2,729,218 (based upon a minimum Market Value of $23.80) and the minimum number
of shares of BancGroup Common Stock that may be issued in the Merger will be
2,017,248 (based upon a maximum Market Value of $32.20). The number of shares of
BancGroup Common Stock to be issued in the Merger will increase proportionally
with each share of United American Common Stock issued pursuant to the exercise,
before the Effective Date, of the United American Options.
 
     No fractional shares of BancGroup Common Stock will be issued in connection
with the Merger. Each shareholder of United American otherwise entitled to
receive a fractional share of BancGroup Common Stock will receive instead a cash
payment (without interest) equal to such fractional interest multiplied by the
Market Value.
 
     As an example, assuming the Market Value is $29.75 (which was the Market
Value as of October 21, 1997), each share of United American Common Stock will
be converted on the Effective Date into 1.227 shares of BancGroup Common Stock
(i.e., $36.50 divided by $29.75). As a result, a shareholder of United American
who owns 500 shares of United American Common Stock would be entitled to receive
613.5 shares of BancGroup Common Stock ($36.50/29.75 multiplied by 500) and
would receive 613 shares of BancGroup Common Stock, with the one-half share paid
in cash (without interest) equal to $14.88 (.5 X $29.75). Subject to the maximum
and minimum Market Values of $32.20 and $23.80. As the Market Value of the
BancGroup Common Stock rises, the number of shares of BancGroup Common Stock to
be issued in the Merger will decrease, and as the Market Value falls, the number
of such shares to be issued will increase, subject to the minimum and maximum
amounts to be issued, as described above.
 
     The closing sales price on the NYSE of the BancGroup Common Stock on
October 21, 1997 was $30.75 per share. Shareholders are advised to obtain
current market quotations for BancGroup Common Stock. The market price of
BancGroup Common Stock at the Effective Date, or on the date on which
certificates representing such shares are received by United American
shareholders, may be higher or lower than the market price of BancGroup Common
Stock as of the Record Date or at the time of the Special Meeting.
 
     The Agreement provides that if, prior to the Effective Date, BancGroup
Common Stock is changed into a different number of shares or a different class
of shares by reason of any recapitalization or reclassification, stock dividend,
combination, stock split, or reverse stock split of the BancGroup Common Stock,
an appropriate and proportionate adjustment will be made in the number of shares
of BancGroup Common Stock into which the United American Common Stock will be
converted in the Merger.
 
     For a description of the assumption or exchange of United American Options,
see "Treatment of United American Options."
 
SURRENDER OF UNITED AMERICAN COMMON STOCK CERTIFICATES
 
     On the Effective Date and subject to the conditions described at
"Conditions to Consummation of the Merger," United American's shareholders
(except those shareholders perfect dissenters' rights under applicable law) will
automatically, and without further action by such shareholders or by BancGroup,
become
 
                                       17
<PAGE>   27
 
owners of BancGroup Common Stock, as described herein. Outstanding certificates
representing shares of the United American Common Stock will represent shares of
BancGroup Common Stock. Thereafter, upon surrender of the certificates formerly
representing shares of United American Common Stock, the holders will be
entitled to receive certificates for the BancGroup Common Stock. Dividends on
the shares of BancGroup Common Stock will accumulate without interest and will
not be distributed to any former shareholder of United American unless and until
such shareholder surrenders for cancellation his certificate for United American
Common Stock. SunTrust Bank, Atlanta, Atlanta, Georgia, transfer agent for
BancGroup Common Stock, will act as the Exchange Agent with respect to the
shares of United American Common Stock surrendered in connection with the
Merger. A detailed explanation of these arrangements will be mailed to United
American shareholders promptly following the Effective Date. STOCK CERTIFICATES
SHOULD NOT BE SENT TO THE EXCHANGE AGENT UNTIL SUCH NOTICE IS RECEIVED.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     The Merger is intended to qualify as a "reorganization" for federal income
tax purposes under Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as
amended (the "Code"). The obligation of each of United American and BancGroup to
consummate the Merger is conditioned on the receipt of an opinion from Coopers &
Lybrand L.L.P., BancGroup's independent public accountant, to the effect that
the Merger will constitute such a reorganization. The opinion has been delivered
to BancGroup. In delivering its opinion, Coopers & Lybrand L.L.P., has received
and relied upon certain representations contained in certificates of officers of
BancGroup and United American and certain other information, data, documentation
and other materials as it deems necessary. The tax opinion is based upon
customary assumptions contained therein, including the assumption that United
American has no knowledge of any plan or intention on the part of the United
American shareholders to sell or dispose of BancGroup Common Stock that would
reduce their holdings to the number of shares having in the aggregate a fair
market value of less than 50% of the total fair market value of the United
American Common Stock outstanding immediately upon consummation of the Merger.
 
     Neither United American nor BancGroup intends to seek a ruling from the IRS
as to the federal income tax consequences of the Merger. United American's
shareholders should be aware that the opinion will not be binding on the IRS or
the courts. United American's shareholders also should be aware that some of the
tax consequences of the Merger are governed by provisions of the Code as to
which there are no final regulations and little or no judicial or administrative
guidance. There can be no assurance that future legislation, administrative
rulings, or court decisions will not adversely affect the accuracy of the
statements contained herein.
 
     The tax opinion states that, provided the assumptions stated therein are
satisfied, the Merger will constitute a reorganization as defined in Section
368(a) of the Code, and the following federal income tax consequences will
result to United American's shareholders who exchange their shares of United
American Common Stock for shares of BancGroup Common Stock:
 
          (i) No gain or loss will be recognized by United American's
     shareholders on the exchange of shares of United American Common Stock for
     shares of BancGroup Common Stock;
 
          (ii) The aggregate basis of BancGroup Common Stock received by each
     United American shareholder (including any fractional shares of BancGroup
     Common Stock deemed received, but not actually received), will be the same
     as the aggregate tax basis of the shares of United American Common Stock
     surrendered in exchange therefor;
 
          (iii) The holding period of the shares of BancGroup Common Stock
     received by each United American shareholder will include the period during
     which the shares of United American Common Stock exchanged therefor were
     held, provided that the shares of United American Common Stock were a
     capital asset in the holder's hands as of the Effective Date;
 
          (iv) Cash payments received by each United American shareholder in
     lieu of a fractional share of BancGroup Common Stock will be treated for
     federal income tax purposes as if the fractional share had
 
                                       18
<PAGE>   28
 
     been issued in the exchange and then redeemed by BancGroup. Gain or loss
     will be recognized on the redemption of the fractional share and generally
     will be capital gain or loss if the United American Common Stock is a
     capital asset in the hands of the holder;
 
          (vi) No gain or loss will be recognized by United American upon the
     transfer of its assets and liabilities to BancGroup. No gain or loss will
     be recognized by BancGroup upon the receipt of the assets and liabilities
     of United American;
 
          (vii) The basis of the assets of United American acquired by BancGroup
     will be the same as the basis of the assets in the hands of United American
     immediately prior to the Merger;
 
          (viii) The holding period of the assets of United American in the
     hands of BancGroup will include the period during which such assets were
     held by United American; and
 
          (ix) No gain or loss will be recognized by United American's
     shareholders on the assumption and conversion of United American Options
     into options to acquire BancGroup Common Stock;
 
          (x) The Cashless Exchange will result in the United American Option
     holders recognizing ordinary income equal to the fair market value of
     BancGroup stock received in the exchange; and
 
          (xi) A United American shareholder who dissents and receives only cash
     pursuant to dissenters, rights will recognize gain or loss. Such gain or
     loss will, in general, be treated as capital gain or loss, measured by the
     difference between the amount of cash received and the tax basis of the
     shares of United American Common Stock converted, if the shares of United
     American Common Stock were held as capital assets. However, a United
     American shareholder who receives only cash may need to consider the
     effects of Section 302 and 318 of the Code in determining the federal
     income tax consequences of the transaction.
 
     Each United American shareholder will be required to report on such
shareholder's federal income tax return for the fiscal year of such shareholder
in which the Merger occurs that such shareholder has received BancGroup Common
Stock in a reorganization.
 
     THE FOREGOING DISCUSSION IS INTENDED ONLY AS A SUMMARY OF CERTAIN MATERIAL
FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER TO THE SHAREHOLDERS OF UNITED
AMERICAN, TO UNITED AMERICAN AND TO BANCGROUP AND DOES NOT PURPORT TO BE A
COMPLETE DESCRIPTION OF ALL POTENTIAL TAX EFFECTS OF THE MERGER. THE DISCUSSION
DOES NOT ADDRESS THE TAX CONSEQUENCES THAT MAY BE RELEVANT TO A PARTICULAR
SHAREHOLDER SUBJECT TO SPECIAL TREATMENT UNDER CERTAIN FEDERAL INCOME TAX LAWS,
SUCH AS DEALERS IN SECURITIES, BANKS, INSURANCE COMPANIES, TAX-EXEMPT
ORGANIZATIONS, NON-UNITED STATES PERSONS, STOCKHOLDERS WHO DO NOT HOLD THEIR
SHARES OF UNITED AMERICAN COMMON STOCK AS "CAPITAL ASSETS" WITHIN THE MEANING OF
SECTION 1221 OF THE CODE, AND SHAREHOLDERS WHO ACQUIRED THEIR SHARES OF UNITED
AMERICAN COMMON STOCK PURSUANT TO THE EXERCISE OF OPTIONS OR OTHERWISE AS
COMPENSATION, NOR ANY CONSEQUENCES ARISING UNDER THE LAWS OF ANY STATE, LOCALITY
OR FOREIGN JURISDICTION; MOREOVER, THE TAX CONSEQUENCES TO HOLDERS OF UNITED
AMERICAN OPTIONS ARE NOT DISCUSSED. THE DISCUSSION IS BASED UPON THE CODE,
TREASURY REGULATIONS THEREUNDER AND ADMINISTRATIVE RULINGS AND COURT DECISIONS
AS OF THE DATE HEREOF. ALL OF THE FOREGOING IS SUBJECT TO CHANGE AND ANY SUCH
CHANGE COULD AFFECT THE CONTINUING VALIDITY OF THIS DISCUSSION. UNITED AMERICAN
SHAREHOLDERS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS CONCERNING THE
PARTICULAR FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES OF THE MERGER TO
THEM.
 
                                       19
<PAGE>   29
 
OTHER POSSIBLE CONSEQUENCES
 
     If the Merger is consummated, the shareholders of United American, a
Florida corporation, will become shareholders of BancGroup, a Delaware business
corporation.
 
     For a discussion of the differences, if any, in the rights, preferences,
and privileges attaching to United American Common Stock as compared with
BancGroup Common Stock, see "Comparative Rights of Stockholders."
 
CONDITIONS TO CONSUMMATION OF THE MERGER
 
     The parties' respective obligations to consummate the Merger are subject to
the satisfaction (or waiver, to the extent permitted by law) of various
conditions set forth in the Agreement.
 
     The obligations of United American and BancGroup to consummate the Merger
are conditioned upon, among other things, (i) the approval of the Agreement by
the holders of at least a majority of the outstanding shares of United American
Common Stock; (ii) the notification to or approval of the Merger by the Federal
Reserve and the Florida Department and approval of the Bank Merger by the
Alabama Department and the Federal Reserve; (iii) the absence of pending or
threatened litigation with a view to restraining or prohibiting consummation of
the Merger or in which it is sought to obtain divestiture, rescission or damages
in connection with the Merger; (iv) the absence of any investigation by any
governmental agency which might result in any such proceeding; (v) consummation
of the Merger no later than April 15, 1998; and (vi) receipt of opinions of
counsel regarding certain matters.
 
     The obligation of United American to consummate the Merger is further
subject to several other conditions, including: (i) the absence of any material
adverse change in the financial condition or affairs of BancGroup; (ii) the
shares of BancGroup Common Stock to be issued under the Agreement shall have
been approved for listing on the NYSE; and (iii) the accuracy in all material
respects of the representations and warranties of BancGroup contained in the
Agreement and the performance by BancGroup of all of its covenants and
agreements under the Agreement.
 
     The obligation of BancGroup to consummate the Merger is subject to several
other conditions, including: (i) the absence of any material adverse change in
the financial condition or affairs of United American; (ii) the number of shares
as to which holders of United American Common Stock exercise dissenters' rights
not exceeding 10% of the outstanding shares of United American Common Stock;
(iii) the receipt of a letter from Coopers & Lybrand L.L.P. concurring with the
conclusions of BancGroup's and United American's management that no conditions
exist with respect to each company which would preclude accounting for the
Merger as a pooling of interests; (iv) the accuracy in all material respects of
the representations and warranties of United American contained in the
Agreement, and the performance by United American of all of its covenants and
agreements under the Agreement; and (v) the receipt by BancGroup of certain
undertakings from holders of United American Common Stock who may be deemed to
be "affiliates" of United American pursuant to the rules of the Commission.
 
     It is anticipated that the foregoing conditions, as well as certain other
conditions contained in the Agreement, such as the receipt of certificates of
officers of each party as to compliance with the Agreement, and satisfaction of
each party of all representations, warranties and covenants, will be satisfied.
The Agreement provides that each of United American and BancGroup may waive all
conditions to its respective obligation to consummate the Merger, other than the
receipt of the requisite approvals of regulatory authorities and approval of the
Agreement by the shareholders of United American. In making any decision
regarding a waiver of one or more conditions to consummation of the Merger or an
amendment of the Agreement, the Boards of Directors of United American and
BancGroup would be subject to the fiduciary duty standards imposed upon such
boards by relevant law that would require such boards to act in the best
interests of their respective shareholders.
 
                                       20
<PAGE>   30
 
AMENDMENT OR TERMINATION OF AGREEMENT
 
     To the extent permitted by law, the Agreement may be amended by a
subsequent writing signed by each of the parties upon the approval of the Boards
of Directors of each of the parties. However, after adoption of the Agreement
and the merger by the holders of United American Common Stock, no amendment
decreasing the consideration to be received by United American stockholders may
be made without the further approval of such stockholders. Such amendments may
require the filing with the Commission of an amendment of the Registration
Statement, of which this Prospectus forms a part. The Agreement may be
terminated at any time prior to or on the Effective Date, whether before or
after adoption of the Agreement by the stockholders of United American, by the
mutual consent of the respective Boards of Directors of United American and
BancGroup, or by the Board of Directors of either BancGroup or United American
under certain circumstances including, but not limited to, the failure of the
transactions contemplated by the Agreement to be consummated on or prior to
April 15, 1998, if such failure to consummate is not caused by any breach of the
Agreement by the party electing to terminate. See "THE MERGER -- Conditions to
Consummation of the Merger."
 
REGULATORY APPROVALS
 
     The Merger is subject to prior approval of the Federal Reserve under the
BHCA and by the "Florida Department pursuant to applicable provisions of the
Florida Banking Code. It is contemplated that subsequent to the Merger, the Bank
will be merged with and into Colonial Bank (the "Bank Merger"). The approval of
the Federal Reserve and the Alabama Department must be obtained prior to the
Bank Merger. In addition, notification of the Bank Merger must be filed with the
Florida Department. Applications were filed with the Federal Reserve and the
Alabama Department on        , 1997, and notification was filed with the Florida
Department on        , 1997. The regulatory approval process is expected to take
approximately two months from this date.
 
     Federal Reserve Approval.  Pursuant to Section 3 of the BHCA, and the
regulations promulgated pursuant thereto, the approval of the Federal Reserve
must be obtained prior to the Merger. The Federal Reserve must withhold approval
of the Merger if it finds that the transaction will result in a monopoly or be
in furtherance of any combination or conspiracy to monopolize or attempt to
monopolize the business of banking in any part of the United States. In
addition, the Federal Reserve may not approve the Merger if it finds that the
effect thereof may be substantially to lessen competition in any section of the
country, or tend to create a monopoly, or would in any other manner be in
restraint of trade, unless it finds that the anti-competitive effects of the
Merger are clearly outweighed by the probable effect of the Merger in meeting
the convenience and needs of the communities to be served. The Federal Reserve
will also take into consideration the financial condition and managerial
resources of BancGroup, its subsidiaries, any banks related to BancGroup through
common ownership or management, and the Bank. Finally, the Federal Reserve will
consider the compliance records of BancGroup's subsidy varies under the
Community Reinvestment Act.
 
     In addition, the Federal Reserve is expressly permitted to approve
applications under Section 3 of the BHCA for a bank holding company that is
adequately capitalized and adequately managed to acquire control of a bank
located in a state other than the home state of such bank holding company (an
"Interstate Acquisition"), without regard to whether such transaction is
prohibited under the law of any state. However, if the law of the state in which
the target bank is located requires the target bank to have been in existence
for some minimum period of time, the Federal Reserve is prohibited from
approving an application by a bank holding company to acquire such target bank
if such target bank does not satisfy this state law requirement, so long as the
state law specifying such minimum period of time does not specify a period of
more than five years.
 
     Also, the Federal Reserve is prohibited from approving an Interstate
Acquisition if the acquiring bank holding company controls, or upon consummation
of the acquisition, would control, more than 10% of the total amount of deposits
of insured depository institutions in the United States. Finally, subject to
certain exceptions, the Federal Reserve may not approve an application
pertaining to an Interstate Acquisition if, among other things, the bank holding
company, upon consummation of the acquisition, would control 30% or
 
                                       21
<PAGE>   31
 
more of the total amount of deposits of insured depository institutions in the
state where the target bank is located.
 
     The BHCA provides for the publication of notice and public comment on the
application and authorizes the Federal Reserve to permit interested parties to
intervene in the proceedings. If an interested party is permitted to intervene,
such intervention could delay the regulatory approvals required for consummation
of the Merger. Section 11 of the BHCA imposes a waiting period which prohibits
the consummation of the Merger, in ordinary circumstances, for a period ranging
from 15-30 days following the Federal Reserve's approval of the Merger. During
such period, the United States Department of Justice, should it object to the
Merger for antitrust reasons, may challenge the consummation of the Merger.
 
     Pursuant to Section 18(c) of the Federal Deposit Insurance Act (the "Bank
Merger Act"), the Federal Reserve's approval also must be obtained prior to the
Bank Merger. The Federal Reserve is prohibited from approving the Bank Merger if
it would result in a monopoly or would be in furtherance of any combination or
conspiracy to monopolize or to attempt to monopolize the business of banking in
any part of the United States. In addition, the Federal Reserve is prohibited
from approving the Bank Merger if its effect, in any section of the country,
would be substantially to lessen competition, or to tend to create a monopoly,
or which in any other manner would be in restraint of trade, unless it finds
that the anti-competitive effects of the Bank Merger are clearly outweighed in
the public interest by the probable effect of the Bank Merger in meeting the
convenience and needs of the community to be served. The Federal Reserve is
required to take into consideration the financial and managerial resources and
future prospects of the existing and proposed institutions, and the convenience
and needs of the community to be served.
 
     In that the Bank Merger constitutes an interstate bank merger, certain
additional requirements are applicable to the Bank Merger. For example, subject
to certain exceptions, the Federal Reserve is prohibited from approving the Bank
Merger if Colonial Bank materially fails to comply with filing requirements
imposed by the Florida Department of Banking and Finance for interstate bank
merger transactions. In addition, the Federal Reserve is prohibited from
approving the Bank Merger if the bank resulting from the Bank Merger, including
all insured depository institutions which are affiliates of such resulting bank,
upon consummation of the transaction, would control more than 10% of the total
amount of deposits of insured depository institutions in the United States. The
Federal Reserve is also prohibited from approving the Bank Merger if either
party to the Bank Merger has a branch in any state in which any other bank
involved in the Bank Merger has a branch, and the resulting bank, upon
consummation of the Bank Merger, would control 30% or more of the total amount
of deposits of insured depository institutions in any such state. Finally, the
Federal Reserve may approve the interstate bank merger only if each bank
involved in the transaction is adequately capitalized as of the date the
application is filed, and the Federal Reserve determines that the resulting bank
will continue to be adequately capitalized and adequately managed upon
consummation of the Bank Merger.
 
     The Bank Merger Act imposes a waiting period which prohibits consummation
of the Bank Merger, in ordinary circumstances, for a period ranging from 15-30
days following the Federal Reserve's approval of the Bank Merger. During such
period, the United States Department of Justice, should it object to the Merger
for antitrust reasons, may challenge the consummation of the Merger.
 
     Florida Department Approval.  The Florida Department must approve the
change of control of the Bank which would be effected by the Merger. Under
Section 658.28 of the Florida Banking Code, the Florida Department shall issue a
Certificate of Approval for a change of control of a Florida state bank only
after it has made an investigation and has determined that the proposed new
owner of a controlling interest is qualified by reputation, character,
experience and financial responsibility to control and operate the bank in a
legal and proper manner and that the interest of the other shareholders, if any,
and the depositors and creditors of the bank and the interest of the public
generally will not be jeopardized by the proposed change in ownership,
controlling interest or management.
 
     In addition, pursuant to Section 658.295 of the Florida Banking Code, the
Florida Department shall not permit the Merger unless the bank has been in
existence and continuously operating, on the date of its acquisition, for more
than three years. Also, the Florida Department shall not permit the Merger if,
upon consummation of the transaction, BancGroup, including all of its insured
depository institutions that would be
 
                                       22
<PAGE>   32
 
"affiliates," as defined in 12 U.S.C. sec. 1841(k), would control 30% or more of
the total amount of deposits held by all insured depository institutions in the
State of Florida.
 
     Alabama Department Approval.  The Bank Merger must be approved by the
Alabama Department pursuant to applicable provisions of the Alabama Banking
Code. If the Superintendent of the Alabama Department finds that (1) the
proposed transaction will not be detrimental to the safety and soundness of the
bank resulting from the Bank Merger, (2) any new officers and directors of the
resulting bank are qualified by character, experience, and financial
responsibility to direct and manage the resulting bank, and (3) the proposed
Bank Merger is consistent with the convenience and needs of the communities to
be served by the resulting bank in the State of Alabama and is otherwise in the
public interest, the Bank Merger shall be approved by the Superintendent.
 
     The Agreement provides that the obligation of each of BancGroup and United
American to consummate the Merger is conditioned upon the receipt of all
necessary regulatory approvals. There can be no assurance that the applications
necessary for BancGroup to consummate the Merger with United American will be
approved, and, if such approvals are received, that such approvals will not be
conditioned upon terms and conditions that would cause the parties to abandon
the Merger.
 
     Any approval received from bank regulatory agencies reflects only their
view that the Merger does not contravene applicable competitive standards
imposed by law, and that the Merger is consistent with regulatory policies
relating to safety and soundness. THE APPROVAL OF THE BANK REGULATORY AGENCIES
IS NOT AN ENDORSEMENT OR RECOMMENDATION OF THE MERGER.
 
     BancGroup is not aware of any governmental approvals or actions that may be
required for consummation of the Merger except for the Federal Reserve, Alabama
Department and Florida Department approvals described above. Should any such
approval or action be required, it is presently contemplated that such approval
or action would be sought.
 
CONDUCT OF BUSINESS PENDING THE MERGER
 
     The Agreement contains certain restrictions on the conduct of the business
of United American pending consummation of the Merger. The Agreement prohibits
United American from taking, without the prior written consent of BancGroup, any
of the following actions, prior to the Effective Date, subject to certain
limited exceptions previously agreed to by BancGroup and United American:
 
          (i) Issuing, delivering or agreeing to issue or deliver any stock,
     bonds or other corporate securities (whether authorized and unissued or
     held in the treasury), except shares of United American Common Stock issued
     upon the exercise of United American Options;
 
          (ii) Borrowing or agreeing to borrow any funds or incurring or
     becoming subject to, any liability (absolute or contingent) except
     borrowings, obligations and liabilities incurred in the ordinary course of
     business and consistent with past practice;
 
          (iii) Paying any material obligation or liability (absolute or
     contingent) other than current liabilities reflected in or shown on the
     most recent balance sheet and current liabilities incurred since that date
     in the ordinary course of business and consistent with past practice;
 
          (iv) Declaring or making or agreeing to declare or make, any payment
     of dividends or distributions of any assets of any kind whatsoever to
     shareholders, or purchasing or redeeming or agreeing to purchase or redeem,
     any of its outstanding securities;
 
          (v) Except in the ordinary course of business, selling or transferring
     or agreeing to sell or transfer, any of its assets, property or rights or
     canceling, or agreeing to cancel, any debts or claims;
 
          (vi) Except in the ordinary course of business, entering or agreeing
     to enter into any agreement or arrangement granting any preferential rights
     to purchase any of its assets, property or rights or requiring the consent
     of any party to the transfer and assignment of any of its assets, property
     or rights;
 
          (vii) Waiving any rights of value which in the aggregate are material;
 
                                       23
<PAGE>   33
 
          (viii) Except in the ordinary course of business, making or permitting
     any amendment or termination of any contract, agreement or license to which
     it is a party if such amendment or termination is material considering its
     business as a whole;
 
          (ix) Except in accordance with past practice, making any accrual or
     arrangement for or payment of bonuses or special compensation of any kind
     or any severance or termination pay to any present or former officer or
     employee;
 
          (x) Except in accordance with past practice, increasing the rate of
     compensation payable to or to become payable to any of its officers or
     employees or making any material increase in any profit-sharing, bonus,
     deferred compensation, savings, insurance, pension, retirement or other
     employee benefit plan, payment or arrangement made to, for or with any of
     its officers or employees;
 
          (xi) Failing to operate its business in the ordinary course so as to
     preserve its business intact and to preserve the goodwill of its customers
     and others with whom it has business relations; and
 
          (xii) Entering into any other material transaction other than in the
     ordinary course of business.
 
     The Agreement provides that prior to the Effective Date, no director or
officer of United American or any of its subsidiaries shall, directly or
indirectly, own, manage, operate, join, control, be employed by or participate
in the ownership, proposed ownership, management, operation or control of or be
connected in any manner with, any business, corporation or partnership which is
competitive to the business of United American or its subsidiaries.
 
     The Agreement also provides that (i) at the request of BancGroup, United
American will consult with BancGroup and advise BancGroup in advance of all loan
requests outside the ordinary course of business or in excess of $500,000 that
are not single-family residential loan requests; and (ii) United American will
consult with BancGroup respecting business issues that United American believes
should be brought to the attention of BancGroup.
 
COMMITMENTS WITH RESPECT TO OTHER OFFERS
 
     Until the termination of the Agreement, and except for the Merger, neither
United American nor any of its directors or officers (or any person representing
any of the foregoing) shall solicit or encourage inquiries or proposals with
respect to, furnish any information relating to or participate in any
negotiations or discussions concerning, any acquisition or purchase of all or of
a substantial portion of the assets of, or of a substantial equity interest in,
United American or any business combination involving United American
(collectively, an "Acquisition Proposal") other than as contemplated by the
Agreement. United American is required to notify BancGroup immediately if any
such inquiries or proposals are received by United American, if any such
information is requested from United American, or if any such negotiations or
discussions are sought to be initiated with United American. United American is
required to instruct its officers, directors, agents or affiliates or their
subsidiaries to refrain from doing any of the above. United American may
communicate information about an Acquisition Proposal to its shareholders if and
to the extent that legal counsel provides a written opinion to United American
that it is required to do so in order to comply with its legal obligations.
 
     In connection with the Agreement, United American has granted to BancGroup
the option to purchase up to 19% of the United American Common Stock at a
purchase price of $36.50 per share. The option will become exercisable upon the
occurrence of certain events which are generally related to the potential
acquisition of United American by another party. The option is intended to
increase the likelihood that the Merger will be consummated by making it more
difficult and expensive for any third party to acquire control of United
American while BancGroup is seeking to consummate the Merger. See "The
Merger -- Related Transactions -- Stock Option."
 
INDEMNIFICATION
 
     BancGroup has agreed to indemnify present and former directors and officers
of United American and the Bank against liabilities arising out of actions or
omissions occurring at or prior to the Effective Date to the
 
                                       24
<PAGE>   34
 
extent provided in the Florida Business Corporation Act and United American's
Articles of Incorporation and Bylaws.
 
RIGHTS OF DISSENTING SHAREHOLDERS
 
     Holders of United American Common Stock as of the Record Date are entitled
to dissenters' rights of appraisal under Florida law. Consummation of the Merger
is subject to, among other things, the holders of no more than 10% of the
outstanding United American Common Stock electing to exercise their dissenters'
rights. PURSUANT TO SECTION 607.1320 OF THE FBCA, A UNITED AMERICAN SHAREHOLDER
WHO DOES NOT WISH TO ACCEPT THE SHARES OF BANCGROUP COMMON STOCK TO BE RECEIVED
PURSUANT TO THE TERMS OF THE AGREEMENT MAY DISSENT FROM THE MERGER AND ELECT TO
RECEIVE THE FAIR VALUE OF HIS SHARES AS OF THE DAY PRIOR TO THE DATE THE MERGER
IS APPROVED BY UNITED AMERICAN SHAREHOLDERS. SUCH FAIR VALUE IS EXCLUSIVE OF ANY
APPRECIATION OR DEPRECIATION IN ANTICIPATION OF THE MERGER, UNLESS EXCLUSION
WOULD BE INEQUITABLE.
 
     In order to exercise appraisal rights, a dissenting shareholder of United
American (a "Dissenting Shareholder") must strictly comply with the statutory
procedures of Sections 607.1320, 607.1301 and 607.1302 of the FBCA, which are
summarized below. A copy of the full text of those Sections is attached hereto
as Appendix B. SHAREHOLDERS OF UNITED AMERICAN ARE URGED TO READ APPENDIX B IN
ITS ENTIRETY AND TO CONSULT WITH THEIR LEGAL ADVISORS. EACH SHAREHOLDER OF
UNITED AMERICAN WHO DESIRES TO ASSERT HIS OR HER APPRAISAL RIGHTS IS CAUTIONED
THAT FAILURE ON HIS OR HER PART TO ADHERE STRICTLY TO THE REQUIREMENTS OF
FLORIDA LAW IN ANY REGARD WILL CAUSE A FORFEITURE OF ANY APPRAISAL RIGHTS.
 
     Procedures for Exercising Dissenters' Rights of Appraisal.  The following
summary of Florida law is qualified in its entirety by reference to the full
text of the provisions of the FBCA attached hereto as Appendix B.
 
          1. A Dissenting Shareholder must file with United American, prior to
     the taking of the vote on the Merger, a written notice of intent to demand
     payment for his or her shares if the Merger is effectuated. A vote against
     the Merger will not alone be deemed to be the written notice of intent to
     demand payment. A Dissenting Shareholder need not vote against the Merger,
     but cannot vote for the Merger.
 
          2. Within ten days after the vote on the Merger is taken, United
     American must give written notice of the authorization of the Merger, if
     obtained, to each United American shareholder who filed notice of intent to
     demand payment for his shares. WITHIN TWENTY DAYS AFTER THE GIVING OF THE
     FOREGOING NOTICE BY UNITED AMERICAN, EACH DISSENTING SHAREHOLDER MUST FILE
     WITH UNITED AMERICAN A NOTICE OF ELECTION TO DISSENT, STATING HIS OR HER
     NAME AND ADDRESS, THE NUMBER OF SHARES AS TO WHICH HE OR SHE DISSENTS AND A
     DEMAND FOR PAYMENT OF THE FAIR VALUE OF HIS OR HER SHARES. ANY DISSENTING
     SHAREHOLDER FAILING TO FILE SUCH ELECTION WITHIN THE PERIOD WILL LOSE HIS
     OR HER APPRAISAL RIGHTS AND BE BOUND BY THE TERMS OF THE AGREEMENT. A
     Dissenting Shareholder filing an election to dissent must also deposit the
     certificate(s) representing his or her shares with United American
     simultaneously with the filing of the election.
 
          3. Upon filing a notice of election to dissent, a Dissenting
     Shareholder shall thereafter be entitled only to payment pursuant to the
     procedure set forth in the applicable sections of FBCA and shall not be
     entitled to vote or to exercise any other rights of a shareholder. A notice
     of election may be withdrawn in writing by the Dissenting Shareholder at
     any time before an offer is made by United American to pay for shares. Upon
     such withdrawal, the right of the Dissenting Shareholder to be paid the
     fair value of his or her shares will cease, and he or she will be
     reinstated as a shareholder.
 
          4. Within ten days after the expiration of the period in which a
     Dissenting Shareholder may file notice of election to dissent, or within
     ten days after the Effective Date of the Merger, whichever is later (but in
     no event later than ninety days after the Merger is approved), United
     American (or BancGroup after the Effective Date) must make a written offer
     to each Dissenting Shareholder who has made
 
                                       25
<PAGE>   35
 
     demand for appraisal for his or her shares at a price deemed by United
     American to be the fair value thereof.
 
          5. If, within thirty days after the making of such offer, the
     Dissenting Shareholder accepts the offer, payment for the shares of the
     Dissenting Shareholder is to be made within ninety days after the making of
     such offer or the effective date of the Merger, whichever is later. Upon
     payment of the agreed value, the Dissenting Shareholder will cease to have
     any interest in such shares.
 
          6. If United American (or BancGroup, if appropriate) fails to make
     such offer within the period specified above or if it makes an offer and a
     Dissenting Shareholder fails to accept the same within a period of 30 days
     thereafter, then United American, within 30 days after receipt of written
     demand from any Dissenting Shareholder given within 60 days after the date
     on which the Merger was effected, shall, or at its election at any time
     within such period of 60 days may, file an action in any court of competent
     jurisdiction in Orange County requesting that the fair value of such shares
     be determined by the Court.
 
          7. If United American fails to institute such proceeding within the
     above-prescribed period, any Dissenting Shareholder may do so in the name
     of United American. A copy of the initial pleading will be served on each
     Dissenting Shareholder. United American is required to pay each Dissenting
     Shareholder the amount found to be due within ten days after final
     determination of the proceedings. The judgment of the court is payable only
     upon and concurrently with the surrender to United American of the
     certificate(s) representing the shares. Upon payment of the judgment, the
     Dissenting Shareholder ceases to have any interest in such shares.
 
          8. The costs and expenses of the court proceeding are determined by
     the court and will be assessed against United American (or BancGroup, if
     appropriate) except that all or any part of such costs and expenses may be
     apportioned and assessed against any Dissenting Shareholders who are
     parties to the proceeding and to whom United American has made an offer to
     pay for their shares, if the court finds their refusal to accept such offer
     to have been arbitrary, vexatious or not in good faith. Expenses include
     reasonable compensation for, and expenses of, appraisers, but shall exclude
     the fees and expenses of counsel for, and experts employed by, any party.
     If the value of the shares, as determined by the court, materially exceeds
     the amount that United American offered to pay for the shares then the
     court may, in its discretion, award to any Dissenting Shareholder who is a
     party to the proceedings, such sum as the court may determine to be
     reasonable compensation to any expert(s) employed by the Dissenting
     Shareholder in the proceeding.
 
     Any Dissenting Shareholder who perfects his or her right to be paid the
value of his or her shares will recognize gain or loss, if any, for federal
income tax purposes upon the receipt of cash for such shares. The amount of gain
or loss and its character as ordinary or capital gain or loss will be determined
in accordance with applicable provisions of the Code. See "-- Certain Federal
Income Tax Consequences."
 
     BECAUSE OF THE COMPLEXITY OF THE PROVISIONS OF THE FLORIDA LAW RELATING TO
DISSENTERS' APPRAISAL RIGHTS, SHAREHOLDERS WHO ARE CONSIDERING DISSENTING FROM
THE MERGER ARE URGED TO CONSULT THEIR OWN LEGAL ADVISERS.
 
RESALE OF BANCGROUP COMMON STOCK ISSUED IN THE MERGER
 
     The issuance of the shares of BancGroup Common Stock pursuant to the Merger
(including any shares to be issued pursuant to United American Options) has been
registered under the Securities Act of 1933 (the "Securities Act"). As a result,
shareholders of United American who are not "affiliates" of United American (as
such term is defined under the Securities Act) may resell, without restriction,
all shares of BancGroup Common Stock which they receive in connection with the
Merger. Under the Securities Act, only affiliates of United American are subject
to restrictions on the resale of the BancGroup Common Stock which they receive
in the Merger.
 
     The BancGroup Common Stock received by affiliates of United American who do
not also become affiliates of BancGroup after the consummation of the Merger may
not be sold except pursuant to an effective registration statement under the
Securities Act covering such shares or in compliance with Rule 145 under the
 
                                       26
<PAGE>   36
 
Securities Act or another applicable exemption from the registration
requirements of the Securities Act. Generally, Rule 145 permits BancGroup Common
Stock held by such shareholders to be sold in accordance with certain provisions
of Rule 144 under the Securities Act. In general, these provisions of Rule 144
permit a person to sell on the open market in brokers or certain other
transactions within any three-month period a number of shares that does not
exceed the greater of 1% of the then outstanding shares of BancGroup Common
Stock or the average weekly trading volume in BancGroup Common Stock reported on
the NYSE during the four calendar weeks preceding such sale. Sales under Rule
144 are also subject to the availability of current public information about
BancGroup. The restrictions on sales will cease to apply under most
circumstances once the former United American affiliate has held the BancGroup
Common Stock for at least one year. BancGroup Common Stock held by affiliates of
United American who become affiliates of BancGroup, if any, will be subject to
additional restrictions on the ability of such persons to resell such shares.
 
     United American will provide BancGroup with such information as may be
reasonably necessary to determine the identity of those persons (primarily
officers, directors and principal shareholders) who may be deemed to be
affiliates of United American. United American will also obtain from each such
person a written undertaking to the effect that no sale or transfer will be made
of any shares of BancGroup Common Stock by such person except pursuant to Rule
145 or pursuant to an effective registration statement or an exemption from
registration under the Securities Act. Receipt of such an undertaking is a
condition to BancGroup's obligation to close the Merger. The undertaking also
will require each affiliate to agree that such person will not sell or otherwise
reduce risk relative to any shares of BancGroup Common Stock received in the
Merger until financial results concerning at least 30 days of post-Merger
combined operations have been published by BancGroup within the meaning of
Section 201.01 of the Commission's Codification of Financial Reporting Policies.
If such undertakings are not received and BancGroup waives receipt of such
condition, the certificates for the shares of BancGroup Common Stock to be
issued to such person will contain an appropriate restrictive legend and
appropriate stock transfer orders will be given to BancGroup's stock transfer
agent.
 
ACCOUNTING TREATMENT
 
     BancGroup will account for the Merger as a pooling-of-interests transaction
in accordance with generally accepted accounting principles, which, among other
things, require that the number of shares of United American Common Stock
acquired for cash pursuant to the exercise of dissenters' rights or in lieu of
fractional shares not exceed 10% of the outstanding shares of United American
Common Stock. Under this accounting treatment, assets and liabilities of United
American would be added to those of BancGroup at their recorded book values, and
the shareholders' equity of the two companies would be combined in BancGroup's
consolidated balance sheet. Financial statements of BancGroup issued after the
Effective Date of the Merger may be restated to reflect the consolidated
operations of BancGroup and United American as if the Merger had taken place
prior to the periods covered by the financial statements.
 
NYSE REPORTING OF BANCGROUP COMMON STOCK ISSUED IN THE MERGER
 
     Sales of BancGroup Common Stock to be issued in the Merger in exchange for
United American Common Stock will be reported on the NYSE.
 
TREATMENT OF UNITED AMERICAN OPTIONS
 
     Cashless Exchange of Options.  As of the date of this Prospectus, United
American had granted options (the "United American Options"), which entitle the
holders thereof to acquire up to 190,500 shares of United American Common Stock.
Subject to the terms of the United American stock option plan under which such
options were issued the Agreement provides that, no later than five days prior
to the Effective Date, the holders of United American Options that have vested
for such holders may provide written notice to United American (in form and
substance reasonably satisfactory to BancGroup) that they wish to surrender
their United American Options to BancGroup, effective at the Effective Date,
and, in lieu of having their United American Options being assumed by BancGroup
as described in the immediately following paragraph, to receive an amount of
BancGroup Common Stock in exchange therefor equal to the difference between the
 
                                       27
<PAGE>   37
 
total value of the shares of BancGroup Common Stock to be issued pursuant to
such United American Options (based upon the number of shares of BancGroup
Common Stock to be issued pursuant to the United American Options multiplied by
the Market Value) less the aggregate exercise price of such United American
Options at the Effective Date, divided by the Market Value (the "Cashless
Exchange"). No fractions of shares shall be issued and fractions shall be paid
in cash at the Market Value. Any United American Options that have not vested at
the Effective Date shall be assumed by BancGroup in accordance with the
immediately following paragraph.
 
     Assumption of Options.  Except for the United American Options exercised or
terminated prior to the Effective Date or surrendered in the Cashless Exchange,
on the Effective Date, BancGroup will assume all United American Options
outstanding, and each such option will represent the right to acquire BancGroup
Common Stock on substantially the same terms applicable to the United American
Options. The registration statement registering the shares of BancGroup Common
Stock issued pursuant to the Merger also registers the shares of BancGroup
Common Stock to be issued upon the exercise of the United American Options
assumed by BancGroup. The number of shares of BancGroup Common Stock to be
issued pursuant to such options will equal the number of shares of United
American Common Stock subject to such United American Options multiplied by the
Exchange Ratio, provided that no fraction of shares of BancGroup Common Stock
will be issued and the number of shares of BancGroup Common Stock to be issued
upon the exercise of United American Options, if a fractional share exists, will
equal the number of whole shares obtained by rounding to the nearest whole
number, giving account to such fraction, or else such fractional interest shall
be paid in cash. The exercise price for the acquisition of BancGroup Common
Stock will be the exercise price for each share of United American Common Stock
subject to such options divided by the Exchange Ratio, adjusted appropriately
for any rounding to whole shares that may be done.
 
     The United American Options are issuable pursuant to the United American
Directors' Stock Option Plan (the "United American Director Plan") and the
United American Officers' and Employees' Stock Option Plan (the "United American
Employee Plan") (collectively, the United American Director Plan and the United
American Employee Plan are referred to as the "Option Plans"). The options
issued under the United American Director Plan are exercisable at $9.00 per
share and under the United American Employee Plan at $10.00 per share. The
option exercise price provisions of the United American Director Plan provide
that the exercise price of such options (which were initially issued at an
exercise price of $10.00 per share) is reduced by the amount of cash dividends
paid by United American since February 1, 1994. Accordingly, the original option
exercise price of $10.00 was reduced by $1.00 to $9.00 to take into account
interim cash dividends paid by United American. The Agreement provides that
following the Effective Date the exercise price of the options issued under the
United American Director Plan will become fixed at $9.00 per share, with no
further reduction in exercise price resulting from cash dividends declared by
either United American or BancGroup.
 
     The Option Plans are not qualified under Section 401(a) of the Internal
Revenue Code of 1986, as amended, nor subject to the Employee Retirement Income
Security Act of 1974. United American Options are not transferrable except under
the laws of descent and distribution.
 
     The terms of the United American Employee Plan provide that all United
American Options granted thereunder terminate on the Effective Date to the
extent not exercised prior thereto. Accordingly, no United American Options
granted under the United American Employee Plan will survive the closing of the
Merger. Shares of United American Common Stock issued upon exercise of United
American Options granted under the United American Employee Plan will be
converted in the Merger into shares of BancGroup Common Stock in accordance with
the Exchange Ratio.
 
     Purpose of the Option Plans.  The purpose of the Option Plans are to
advance the interests of United American and the Bank by affording to directors,
key management employees and officers an opportunity to acquire or increase
their propriety interest in United American and, thus, to motivate, retain and
attract highly competent individuals for the benefit of United American.
BancGroup believes that its assumption of the United American Options will be
consistent with this purpose. No further options will be granted under the
Option Plans after the Merger. A total of 17 persons currently hold United
American Options.
 
                                       28
<PAGE>   38
 
     Tax Consequences -- Incentive Options.  Options issued under the United
American Employee Plan are intended to qualify as "incentive stock options,"
under Section 422 of the Internal Revenue Code of 1986, as amended. Under the
Internal Revenue Code no income will result to a grantee of any such option upon
the granting or exercising of an option by the grantee, and BancGroup will not
be entitled to a tax deduction by reason of such grant or exercise.
 
     If, after exercising the option, the employee holds the stock obtained
through exercise for at least two years after the date of option grant and at
least one year after the stock was obtained, the employee's gain (if any) on
selling the stock will generally be treated as a long term capital gain.
Generally, the employee's alternative minimum taxable income for minimum tax
purposes will be increased by the difference between the option price and the
fair market value of the stock on the date of exercise.
 
     If the holding period requirements just stated are not met, then any gain
on the sale of the stock will be taxed partly or entirely at ordinary income tax
rates. If the stock is held for less than the required holding period, then the
difference between the option exercise price and the fair market value of the
stock on the date of exercise will be taxed at ordinary income tax rates. The
gain equal to the increase in the fair market value of the stock after the date
of exercise of the option will generally be taxed as capital gain.
 
     It should be understood that the holding periods discussed above relate
only to federal income tax treatment and not to any securities law restrictions
that may apply to the sale of shares obtained through an option.
 
     The foregoing statements concerning federal income tax treatment are
necessarily general and may not apply in a particular instance. Option holders
should contact their own professional tax advisors for advice concerning their
particular tax situation and any changes in the tax law since the date of this
Prospectus.
 
     Tax Consequences -- Non Qualified Options.  The options issued under the
Director Option Plan are nonqualified options that are not "incentive stock
options" under Section 422 of the Internal Revenue Code of 1986, as amended.
Thus, upon the exercise of such an option, ordinary income will result to the
grantee equal to the difference between the price of the option and the fair
market value of the stock subject to the option at the date of exercise.
BancGroup, however, will be entitled to a tax deduction equal to the amount of
ordinary income accruing to the optionee. The foregoing statements concerning
federal income tax treatment are necessarily general and may not apply in a
particular instance. Holders of options under the United American Director Plan
should contact their own professional tax advisors for advice concerning their
particular tax situation and any change in the tax laws since the date of this
Prospectus.
 
     Administration.  The shares of stock to be delivered upon the exercise of
United American Options granted under the United American Director Plan shall be
made available, after the Merger, from the authorized but unissued shares of
BancGroup's Common Stock.
 
     The United American Director Plan is to be administered, after the Merger,
by the Personnel and Compensation Committee (the "Committee") of the Board of
Directors of BancGroup. All members of the Committee are directors of BancGroup.
The Chairman of the Committee, John C. H. Miller, Jr., receives employee-related
compensation from BancGroup and holds options under BancGroup's stock option
plans. Mr. Miller is a member of a law firm that performs legal services for
BancGroup. See "Legal Opinions." Another member of the Committee, Jack H.
Rainer, is Chairman of Bankers Credit Life Insurance Company, which provides
credit life insurance on certain loans made by Colonial Bank, BancGroup's
Alabama bank subsidiary. The members of the Committee serve at the pleasure of
the Board of Directors of BancGroup. The Committee shall interpret the Option
Plan and resolve questions presented by holders of options under the Option
Plan. Requests for information or questions about the Option Plan should be
directed to BancGroup's Corporate Secretary, at the offices of BancGroup, Post
Office Box 1108, One Commerce Street, Montgomery, Alabama 36101 telephone: (334)
240-5000.
 
     Exercise of Options.  After a United American Option becomes exercisable in
accordance with its terms, it may be exercised by the holder by giving written
notice to BancGroup on a form provided by BancGroup and by paying to BancGroup
in cash the exercise price of the shares to be acquired under the option.
Payment may be made to BancGroup by cash, check, bank draft, or money order, or,
by delivering BancGroup stock
 
                                       29
<PAGE>   39
 
already owned by the option holder. The period during which an option may be
exercised is stated in the agreement respecting each grant of options but in no
case may be more than 10 years from the date the option is granted. The optionee
must be in the continuous employ of United American or BancGroup from the date
of grant through the date of exercise, except as stated below.
 
     Termination of Employment.  If an employee is terminated for cause, or if
an employee voluntarily terminates employment other than by retirement, the
option will also terminate as of the date of termination of employment. "Cause"
is defined in the Option Plan as the negligent or willful failure of an optionee
to perform his or her duties in a manner consistent with the best interests of
United American or its subsidiaries and in accordance with the directives of
management. If an employee's employment is terminated without cause, or if an
Optionee resigns as a director, the holder of the option has 30 days following
such termination to exercise such option. In the case of permanent and total
disability, an employee has the right at any time during the period ending one
year from the date of termination of employment as a result of such disability
to exercise the option.
 
     Amendment and Other Matters.  BancGroup's Board of Directors may at any
time amend the United American Director Plan, except that no amendment may make
any change in any option already granted which would adversely affect the rights
of any participant.
 
     It is not anticipated that BancGroup will make any reports to option
holders regarding the amount or status of United American Options held. Option
holders may obtain such information from BancGroup at the address given above.
 
     The shares subject to options will be obtained by BancGroup from authorized
but unissued shares. BancGroup has reserved sufficient authorized but unissued
shares for issuance pursuant to options under the United American Plans and does
not anticipate acquiring any shares in the open market for such purposes.
 
                                       30
<PAGE>   40
 
                    COMPARATIVE MARKET PRICES AND DIVIDENDS
 
BANCGROUP
 
     BancGroup Common Stock is listed for trading on the NYSE. The Common Stock
was first listed on the NYSE on February 24, 1995. Prior to February 21, 1995,
BancGroup had two classes of common stock outstanding, Class A and Class B
Common Stock. The Class B was not publicly traded. The Class A Common Stock was
traded in the over-the-counter market and quoted on the Nasdaq NMS. The
BancGroup Class A Common Stock had more limited voting rights than the BancGroup
Class B Common Stock. The Class A and Class B Common Stock were reclassified
into one class of BancGroup Common Stock on February 21, 1995, and the Class A
Common Stock ceased to be quoted on the Nasdaq NMS on February 24, 1995.
 
     The following table shows the dividends paid per share and indicates the
high and low closing prices for the BancGroup Class A Common Stock as reported
by the Nasdaq NMS up to February 24, 1995, and the same information reported by
the NYSE for the BancGroup Common Stock commencing February 24, 1995.
 
<TABLE>
<CAPTION>
                                                                     PRICE(1)
                                                              -----------------------  DIVIDENDS(1)
                                                                 HIGH         LOW      (PER SHARE)
                                                              -----------  ----------  ------------
<S>                                                           <C>  <C>     <C> <C>     <C>
1995
1st Quarter.................................................  $11  13/16   $ 9 3/4        $0.1125
2nd Quarter.................................................   13  5/8      11 9/16       0.1125
3rd Quarter.................................................   14  15/16    13 3/4        0.1125
4th Quarter.................................................   16  7/16     14 1/8        0.1125
1996
1st Quarter.................................................   18  1/4      15            0.135
2nd Quarter.................................................   18  1/16     15 5/8        0.135
3rd Quarter.................................................   17  15/16    15 5/8        0.135
4th Quarter.................................................   20  1/8      17 3/8        0.135
1997
1st Quarter.................................................   24           18 2/3        0.15
2nd Quarter.................................................   24  7/8      22            0.15
3rd Quarter.................................................   29  3/16     24 1/4        0.15
4th Quarter (through October 20, 1997)......................   29  15/16    28 15/16        --
</TABLE>
 
- ---------------
 
(1) Prices and dividends have been restated to reflect the impact of a
     two-for-one stock split effected in the form of a 100% stock dividend paid
     February 11, 1997.
 
     On September 8, 1997, the business day immediately prior to the public
announcement of the Merger, the closing price as reported on the NYSE of the
BancGroup Common Stock was $27.9375 per share.
 
     At December 31, 1996, BancGroup's subsidiaries accounted for approximately
98% of BancGroup's consolidated assets. BancGroup derives substantially all of
its income from dividends received from its subsidiaries. Various statutory
provisions and regulatory policies limit the amount of dividends the subsidiary
bank may pay without regulatory approval. In addition, federal statutes restrict
the ability of subsidiary bank to make loans to BancGroup, and regulatory
policies may also restrict such dividends.
 
                                       31
<PAGE>   41
 
UNITED AMERICAN
 
     There is no established public trading market for the United American
Common Stock. The shares of United American Common Stock are not actively
traded, and such trading activity, as it occurs, takes place in privately
negotiated transactions. Management of United American is aware of certain
transactions in shares of United American that have occurred since January 1,
1995, although the trading prices of all stock transactions are not known. The
following sets forth the trading prices for the shares of United American Common
Stock that have occurred since January 1, 1995 for transactions in which the
trading prices are known to management of United American:
 
<TABLE>
<CAPTION>
                                                                              DIVIDENDS
                                                       HIGH        LOW        PER SHARE
                                                      ------      ------      ---------
<S>                                                   <C>         <C>         <C>
1995
First Quarter.......................................      --          --             --
Second Quarter......................................  $10.00      $10.00             --
Third Quarter.......................................      --          --             --
Fourth Quarter......................................   10.00       10.00             --
1996
First Quarter.......................................   10.00       10.00        $   .50
Second Quarter......................................      --          --             --
Third Quarter.......................................      --          --             --
Fourth Quarter......................................      --          --             --
1997
First Quarter.......................................   10.00       10.00            .50
Second Quarter......................................   15.00       10.00             --
Third Quarter (through October 31, 1997)............   20.00       10.00             --
</TABLE>
 
     In March, 1995, United American sold 659,200 shares of United American
Common Stock in a private placement transaction at $10.00 per share. Each United
American shareholder of record on January 31, 1995 who purchased shares of
United American Common Stock in the offering, also was issued a nontransferable
stock purchase warrant entitling the shareholder to purchase for each two shares
of United American Common Stock purchased in the offering an additional share of
United American Common Stock on or before July 1, 1997 at a per share amount
equal to $10.00. An aggregate of 220,100 stock purchase warrants were issued in
the offering, all of which were exercised for shares of United American Common
Stock before July 1, 1997. On August 22, 1997, United American issued an
aggregate of 59,500 shares of United American Common Stock, valued at $20.00 per
share, to acquire an entity (owned in part by certain directors of United
American) which owned United American's main office and certain property
adjacent to the office. See BUSINESS OF UNITED AMERICAN -- Properties."
 
     The Agreement provides that United American will not pay dividends prior to
the Effective Date. See "The Merger -- Conduct of Business Pending the Merger."
 
                     BANCGROUP CAPITAL STOCK AND DEBENTURES
 
     BancGroup's authorized capital stock consists of 100,000,000 shares of
BancGroup Common Stock, par value $2.50 per share, and 1,000,000 shares of its
Preference Stock, par value $2.50 per share. As of September 30, 1997, there
were issued and outstanding a total of 41,964,197 shares of BancGroup Common
Stock. No shares of Preference Stock are issued and outstanding. BancGroup
issued in 1986 $28,750,000 in principal amount of its 7 1/2% Convertible
Subordinated Debentures due 2011 (the "1986 Debentures") of which $5,012,686
were outstanding as of September 30, 1997 and convertible at any time into
358,049 shares of BancGroup Common Stock, subject to adjustment. There are
1,774,988 shares of BancGroup Common Stock subject to issue upon exercise of
options under BancGroup's stock option plans. In addition to BancGroup Common
Stock to be issued in the Merger, BancGroup will issue additional shares of
BancGroup
 
                                       32
<PAGE>   42
 
Common Stock in pending acquisitions. On January 20, 1997, BancGroup issued,
through a special purpose trust, $70 million of Trust Preferred Securities. See
"Business of BancGroup -- Proposed Affiliate Banks."
 
     The following statements with respect to BancGroup Common Stock and
Preference Stock are brief summaries of material provisions of Delaware law, the
Restated Certificate of Incorporation (the "BancGroup Certificate"), as amended,
and Bylaws of BancGroup, do not purport to be complete and are qualified in
their entirety by reference to the foregoing.
 
BANCGROUP COMMON STOCK
 
     Dividends.  Subject to the rights of holders of Preference Stock, if any,
to receive certain dividends prior to the declaration of dividends on shares of
BancGroup Common Stock, when and as dividends, payable in cash, stock or other
property, are declared by the BancGroup Board of Directors, the holders of
BancGroup Common Stock are entitled to share ratably in such dividends.
 
     Voting Rights.  Each holder of BancGroup Common Stock has one vote for each
share held on matters presented for consideration by the stockholders.
 
     Preemptive Rights.  The holders of BancGroup Common Stock have no
preemptive rights to acquire any additional shares of BancGroup.
 
     Issuance of Stock.  The BancGroup Certificate authorizes the Board of
Directors of BancGroup to issue authorized shares of BancGroup Common Stock
without stockholder approval. However, BancGroup's Common Stock is listed on the
NYSE, which requires stockholder approval of the issuance of additional shares
of BancGroup Common Stock under certain circumstances.
 
     Liquidation Rights.  In the event of liquidation, dissolution or winding-up
of BancGroup, whether voluntary or involuntary, the holders of BancGroup Common
Stock will be entitled to share ratably in any of its assets or funds that are
available for distribution to its stockholders after the satisfaction of its
liabilities (or after adequate provision is made therefor) and after preferences
of any outstanding Preference Stock.
 
PREFERENCE STOCK
 
     The Preference Stock may be issued from time to time as a class without
series, or if so determined by the Board of Directors of BancGroup, either in
whole or in part in one or more series. The voting rights, and such
designations, preferences and relative, participating, optional or other special
rights, if any, and the qualifications, limitations or restrictions thereof, if
any, including, but not limited to, the dividend rights, conversion rights,
redemption rights and liquidation preferences, if any, of any wholly unissued
series of Preference Stock (or of the entire class of Preference Stock if none
of such shares has been issued), the number of shares constituting any such
series and the terms and conditions of the issue thereof may be fixed by
resolution of the Board of Directors of BancGroup. Preference Stock may have a
preference over the BancGroup Common Stock with respect to the payment of
dividends and the distribution of assets in the event of the liquidation or
winding-up of BancGroup and such other preferences as may be fixed by the Board
of Directors of BancGroup.
 
1986 DEBENTURES
 
     BancGroup issued in 1986 its 7 1/2% Convertible Subordinated Debentures due
2011 (the "1986 Debentures") in the total principal amount of $28,750,000. The
1986 Debentures were issued under a trust indenture (the "1986 Indenture")
between BancGroup and SunTrust Bank, Atlanta, Atlanta, Georgia, as trustee.
 
     The 1986 Debentures will mature on March 31, 2011, and are convertible at
any time into shares of BancGroup Common Stock at the option of a holder
thereof, at the conversion price of $14 principal amount of the 1986 Debentures
for each share of BancGroup Common Stock. The conversion price is, however,
subject to adjustment upon the occurrence of certain events as described in the
1986 Indenture. In the event all of the outstanding 1986 Debentures are
converted into shares of BancGroup Common Stock in accordance with the 1986
Indenture, a total of 512,800 shares of such BancGroup Common Stock will be
issued. The 1986 Debentures are redeemable, in whole or in part, at the option
of BancGroup at certain premiums until
 
                                       33
<PAGE>   43
 
1996, when the redemption price shall be equal to 100% of the face amount of the
1986 Debentures plus accrued interest. The payment of principal and interest on
the 1986 Debentures is subordinate, to the extent provided in the 1986
Indenture, to the prior payment when due of all Senior Indebtedness of
BancGroup. "Senior Indebtedness" is defined as any indebtedness of BancGroup for
money borrowed, or any indebtedness incurred in connection with an acquisition
or with a merger or consolidation, outstanding on the date of execution of the
1986 Indenture as originally executed, or thereafter created, incurred or
assumed, and any renewal, extension, modification or refunding thereof, for the
payment of which BancGroup (which term does not include BancGroup's consolidated
or unconsolidated subsidiaries) is at the time of determination responsible or
liable as obligor, guarantor or otherwise. Senior Indebtedness does not include
(i) indebtedness as to which, in the instrument creating or evidencing the same
or pursuant to which the same is outstanding, it is provided that such
indebtedness is subordinate in right of payment to any other indebtedness of
BancGroup, and (ii) indebtedness which by its terms states that such
indebtedness is subordinate to or equally subordinate with the 1986 Debentures.
 
     At December 31, 1996, BancGroup's Senior Indebtedness as defined in the
1986 Indenture aggregated approximately $870 million. Such debt includes all
short-term debt consisting of federal funds purchased, securities purchased
under repurchase agreements and borrowings with the Federal Home Loan Bank but
excludes all federally-insured deposits. BancGroup may from time to time incur
additional indebtedness constituting Senior Indebtedness. The 1986 Indenture
does not limit the amount of Senior Indebtedness which BancGroup may incur, nor
does such indenture prohibit BancGroup from creating liens on its property for
any purpose.
 
OTHER INDEBTEDNESS
 
     On January 29, 1997, BancGroup issued, through a special purpose trust, $70
million of Trust Preferred Securities. The securities bear interest at 8.92% and
are subject to redemption in whole or in part any time after January 2007
through January 2027. The securities are subordinated to substantially all of
BancGroup's indebtedness. In BancGroup's consolidated statement of condition,
these securities will be shown as long-term debt.
 
     BancGroup has contracted to enter into a merger with ASB BancShares, Inc.
("ASB"), a Delaware corporation wherein BancGroup would be surviving
corporation. As part of the consideration for the Common Stock of ASB, BancGroup
intends to issue debentures to three ASB shareholders. It is anticipated that
the aggregate principal amount of these debentures will be $7,724,813.
 
     The debentures would pay a rate of interest equal to the New York Prime
Rate minus 1% (but in no event less than 7% per annum) and would be due and
payable ten years from the date of issuance. They are senior to the BancGroup
Common Stock upon liquidation, but would be subordinate to BancGroup's Senior
Indebtedness. See "BancGroup Capital Stock and Debentures." The Debentures are
redeemable by BancGroup with the consent of the holders thereof. A holder of a
Debenture may, subject to BancGroup's right to decline, request redemption of
any or all of the Debentures held by him or her.
 
CHANGES IN CONTROL
 
     Certain provisions of the BancGroup Certificate and bylaws may have the
effect of preventing, discouraging or delaying any change in control of
BancGroup. The authority of the BancGroup Board of Directors to issue BancGroup
Preference Stock with such rights and privileges, including voting rights, as it
may deem appropriate may enable BancGroup's Board of Directors to prevent a
change in control despite a shift in ownership of the BancGroup Common Stock.
See "General" and "Preference Stock." In addition, the power of BancGroup's
Board of Directors to issue additional shares of BancGroup Common Stock may help
delay or deter a change in control by increasing the number of shares needed to
gain control. See "BancGroup Common Stock." The following provisions also may
deter any change in control of BancGroup.
 
     Classified Board.  BancGroup's Board of Directors is classified into three
classes, as nearly equal in number as possible, with the members of each class
elected to three-year terms. Thus, one-third of BancGroup's Board of Directors
is elected by stockholders each year. With this provision, two annual elections
are required in order to change a majority of the Board of Directors. There are
currently 22 directors of
 
                                       34
<PAGE>   44
 
BancGroup. This provision of the BancGroup Certificate also stipulates that (i)
directors can be removed only for cause upon a vote of 80% of the voting power
of the outstanding shares entitled to vote in the election of directors, voting
as a class, (ii) vacancies in the Board of Directors may only be filled by a
majority vote of the directors remaining in office, (iii) the maximum number of
directors shall be fixed by resolution of the Board of Directors, and (iv) the
provisions relating to the classified Board of Directors can only be amended by
the affirmative vote of the holders of at least 80% of the voting power of the
outstanding shares entitled to vote in the election of directors, voting as a
class.
 
     Business Combinations.  Certain "Business Combinations" of BancGroup with a
"Related Person" may only be undertaken with the affirmative vote of at least
75% of the outstanding shares of "Voting Stock," plus the affirmative vote of at
least 67% of the outstanding shares of Voting Stock, not counting shares owned
by the Related Person, unless the Continuing Directors of BancGroup approve such
Business Combination. A "Related Person" is a person, or group, who owns or
acquires 10% or more of the outstanding shares of BancGroup Common Stock,
provided that no person shall be a Related Person if such person would have been
a Related Person on the date of approval of this provision by BancGroup's Board
of Directors, i.e., April 20, 1994. An effect of this provision may be to
exclude Robert E. Lowder, the current Chairman and Chief Executive Officer of
BancGroup, and certain members of his family from the definition of Related
Person. A "Continuing Director" is a director who was a member of the Board of
Directors immediately prior to the time a person became a Related Person. This
provision may not be amended without the affirmative vote of the holders of at
least 75% of the outstanding shares of Voting Stock, plus the affirmative vote
of the outstanding shares of at least 67% of the outstanding Voting Stock,
excluding shares held by a Related Person. This provision may have the effect of
giving the incumbent Board of Directors a veto over a merger or other Business
Combination that could be desired by a majority of BancGroup's stockholders. As
of April 30, 1997, the Board of Directors of BancGroup owned approximately
10.64% of the outstanding shares of BancGroup Common Stock.
 
     Board Evaluation of Mergers.  The BancGroup Certificate permits the Board
of Directors to consider certain factors such as the character and financial
stability of the other party, the projected social, legal, and economic effects
of a proposed transaction upon the employees, suppliers, regulatory agencies and
customers and communities of BancGroup, and other factors when considering
whether BancGroup should undertake a merger, sale of assets, or other similar
transaction with another party. This provision may not be amended except by the
affirmative vote of at least 80% of the outstanding shares of BancGroup Common
Stock. This provision may give greater latitude to the Board of Directors in
terms of the factors which the board may consider in recommending or rejecting a
merger or other Business Combination of BancGroup.
 
     Director Authority.  The BancGroup Certificate prohibits stockholders from
calling special stockholders' meetings and acting by written consent. It also
provides that only BancGroup's Board of Directors has the authority to undertake
certain actions with respect to governing BancGroup such as appointing
committees, electing officers, and establishing compensation of officers, and it
allows the Board of Directors to act by majority vote.
 
     Bylaw Provisions.  BancGroup's Bylaws provide that stockholders wishing to
propose nominees for the Board of Directors or other business to be taken up at
an annual meeting of BancGroup shareholders must comply with certain advance
written notice provisions. These bylaw provisions are intended to provide for
the more orderly conduct of stockholder meetings but could make it more
difficult for shareholders to nominate directors or introduce business at
stockholder meetings.
 
     Delaware Business Combination Statute.  Subject to some exceptions,
Delaware law prohibits BancGroup from entering into certain "business
combinations" (as defined) involving persons beneficially owning 15% or more of
the outstanding BancGroup Common Stock (or who is an affiliate of BancGroup and
has over the past three years beneficially owned 15% or more of such stock)
(either, for the purpose of this paragraph, an "Interested Stockholder"), unless
the Board of Directors has approved either (i) the business combination or (ii)
prior to the stock acquisition by which such person's beneficial ownership
interest reached 15% (a "Stock Acquisition"), the Stock Acquisition. The
prohibition lasts for three years from the date of the Stock Acquisition.
Notwithstanding the preceding, Delaware law allows BancGroup to enter into a
business
 
                                       35
<PAGE>   45
 
combination with an Interested Stockholder if (i) the business combination is
approved by BancGroup's Board of Directors and authorized by an affirmative vote
of at least 66 2/3% of the outstanding voting stock of BancGroup which is not
owned by the Interested Stockholder or (ii) upon consummation of the transaction
which resulted in the stockholder becoming an Interested Stockholder, such
stockholder owned at least 85% of the outstanding BancGroup Common Stock
(excluding BancGroup Common Stock held by officers and directors of BancGroup or
by certain BancGroup stock plans). These provisions of Delaware law apply
simultaneously with the provisions of the BancGroup Certificate relating to
business combinations with a related person, described above at "Business
Combinations," but they are generally less restrictive than the BancGroup
Certificate.
 
     Control Acquisitions.  As it relates to BancGroup, the Change in Bank
Control Act of 1978 prohibits a person or group of persons from acquiring
"control" of a bank holding company unless the Federal Reserve has been given 60
days' prior written notice of such proposed acquisition and within that time
period the Federal Reserve has not issued a notice disapproving the proposed
acquisition or extending for up to another 30 days the period during which such
a disapproval may be issued. An acquisition may be made prior to the expiration
of the disapproval period if the Federal Reserve issues written notice of its
intent not to disapprove the action. Under a rebuttable presumption established
by the Federal Reserve, the acquisition of more than 10% of a class of voting
stock of a bank holding company with a class of securities registered under
Section 12 of the Exchange Act, such as BancGroup, would, under the
circumstances set forth in the presumption, constitute the acquisition of
control. The receipt of revocable proxies, provided the proxies terminate within
a reasonable time after the meeting to which they relate, is not included in
determining percentages for change in control purposes.
 
                                       36
<PAGE>   46
 
                       COMPARATIVE RIGHTS OF SHAREHOLDERS
 
     If the Merger is consummated, shareholders of United American (except those
perfecting dissenters' rights) will become holders of BancGroup Common Stock.
The rights of the holders of the United American Common Stock who become holders
of the BancGroup Common Stock following the Merger will be governed by the
BancGroup Certificate and Bylaws, as well as the laws of Delaware, the state in
which BancGroup is incorporated.
 
     The following summary compares the rights of the holders of United American
Common Stock with the rights of the holders of the BancGroup Common Stock. For a
more detailed description of the rights of the holders of BancGroup Common
Stock, including certain features of the BancGroup Certificate and the DGCL that
might limit the circumstances under which a change in control of BancGroup could
occur, see "BancGroup Capital Stock and Debentures."
 
     The following information is qualified in its entirety by the BancGroup
Certificate and Bylaws, and United American's Articles of Incorporation and
Bylaws, the DGCL and the FBCA.
 
DIRECTOR ELECTIONS
 
     United American.  United American's directors are elected annually.
Shareholders may not cumulate votes in connection with such election (or for any
other purpose).
 
     BancGroup.  BancGroup's directors are elected to terms of three years with
approximately one-third of the Board to be elected annually. There is no
cumulative voting in the election of directors. See "BancGroup Capital Stock and
Debentures -- Changes in Control -- Classified Board."
 
REMOVAL OF DIRECTORS
 
     United American.  United American directors may be removed by shareholders
with or without cause.
 
     BancGroup.  The BancGroup Certificate provides that a director may be
removed from office, but only for cause and by the affirmative vote of the
holders of at least 80% of the voting shares then entitled to vote at an
election of directors.
 
VOTING
 
     United American.  Each holder of United American Common Stock is entitled
to cast one vote for each share held on each issue with respect to which a
shareholder vote is authorized, but may not cumulate votes for the election of
directors or for any other purpose.
 
     BancGroup.  Each stockholder of BancGroup is entitled to one vote for each
share of BancGroup Common Stock held, and such holders are not entitled to
cumulative voting rights in the election of directors.
 
PREEMPTIVE RIGHTS
 
     United American.  Holders of United American Common Stock have no
preemptive rights to subscribe for additional shares on a pro rata or other
basis when and if shares are offered for sale by United American.
 
     BancGroup.  The holders of BancGroup Common Stock have no preemptive rights
to acquire any additional shares of BancGroup Common Stock or any other shares
of BancGroup capital stock.
 
DIRECTORS' LIABILITY
 
     United American.  Section 607.0831 of the FBCA provides that a director of
United American will not be personally liable for monetary damages to United
American or any other person for any statement, vote, decision or failure to
act, regarding corporate management or policy, by a director unless: (i) the
director breached or failed to perform his duties as a director, and (ii) the
director's breach of or failure to perform those duties constitutes: (a) a
violation of the criminal law, unless the director had reasonable cause to
believe his conduct was lawful or had no reasonable cause to believe his conduct
was unlawful, (b) a transaction in
 
                                       37
<PAGE>   47
 
which the director derived an improper personal benefit, (c) a payment of
certain unlawful dividends and distributions, (d) in a proceeding by or in the
right of United American to procure judgment in its favor or by or in the right
of a shareholder, conscious disregard for the best interests of United American,
or willful misconduct, or (e) in a proceeding by or in the right of someone
other than United American or a shareholder, recklessness or an act or omission
which was committed in bad faith or with malicious purpose or in a manner
exhibiting wanton and willful disregard of human rights, safety or property.
This provision would absolve directors of United American of personal liability
for negligence in the performance of their duties, including gross negligence.
It would not permit a director to be exculpated, however, from liability for
actions involving conflicts of interest or breaches of the traditional "duty of
loyalty" to United American and its shareholders, and it would not affect the
availability of injunctive and other equitable relief as a remedy.
 
     BancGroup.  The BancGroup Certificate provides that a director of BancGroup
will have no personal liability to BancGroup or its stockholders for monetary
damages for breach of fiduciary duty as a director except (i) for any breach of
the director's duty of loyalty to the corporation or its stockholders, (ii) for
acts or omissions not in good faith or that involve intentional misconduct or a
knowing violation of law, (iii) for the payment of certain unlawful dividends
and the making of certain stock purchases or redemptions, or (iv) for any
transaction from which the director derived an improper personal benefit. This
provision would absolve directors of personal liability for negligence in the
performance of duties, including gross negligence. It would not permit a
director to be exculpated, however, for liability for actions involving
conflicts of interest or breaches of the traditional "duty of loyalty" to
BancGroup and its stockholders, and it would not affect the availability of
injunctive or other equitable relief as a remedy.
 
INDEMNIFICATION
 
     United American.  Under Section 607.0850 of the FBCA, the directors and
officers of United American may be indemnified against certain liabilities which
they may incur in their capacity as officers and directors. Such indemnification
is generally available if the director or officer acted in good faith and in a
manner he or she reasonably believed to be in, or not opposed to, the best
interest of United American, and with respect to any criminal proceeding, had no
reasonable cause to believe his or her conduct was unlawful. Indemnification may
also be available unless a court of competent jurisdiction establishes by final
adjudication that the actions or omissions of the director or officer are
material to the cause of action so adjudicated and constituted: (i) a violation
of the criminal law, unless the director or officer had reasonable cause to
believe his or her conduct was lawful or had no reasonable cause to believe his
or her conduct was unlawful; (ii) a transaction from which the executive derived
an improper personal benefit; or (iii) willful misconduct or conscious disregard
for the best interest of United American in a proceeding by or in the right of
United American to procure a judgment in its favor or in a proceeding by or in
the right of a shareholder. United American's Bylaws authorize United American
to indemnify its officers and directors to the extent permitted by the statute.
Furthermore, to the extent that the proposed indemnitee is successful on the
merits or otherwise in the defense of any action, suit or proceeding (or any
claim, issue or matter therein) he or she must be indemnified against expenses
(including attorney's fees) actually and reasonably incurred by him or her in
connection with such proceeding.
 
     United American maintains a directors' and officers' insurance policy
pursuant to which officers and directors of United American would be entitled to
indemnification against certain liabilities, including reimbursement of certain
expenses.
 
     BancGroup.  The BancGroup Certificate provides that directors, officers,
employees and agents of BancGroup shall be indemnified to the full extent
permitted under the DGCL. Section 145 of the DGCL contains detailed and
comprehensive provisions providing for indemnification of directors and officers
of Delaware corporations against expenses, judgments, fines and settlements in
connection with litigation. Under the DGCL, other than an action brought by or
in the right of BancGroup, such indemnification is available if it is determined
that the proposed indemnitee acted in good faith and in a manner he or she
reasonably believed to be in or not opposed to the best interests of BancGroup
and, with respect to any criminal action or proceeding, had no reasonable cause
to believe his conduct was unlawful. In actions brought by or in the right of
BancGroup, such indemnification is limited to expenses (including attorneys'
fees) actually and reasonably
 
                                       38
<PAGE>   48
 
incurred in the defense or settlement of such action if the indemnitee acted in
good faith and in a manner he or she reasonably believed to be in or not opposed
to the best interests of BancGroup and except that no indemnification shall be
made in respect of any claim, issue or matter as to which such person has been
adjudged to be liable to BancGroup unless and only to the extent that the
Delaware Court of Chancery or the court in which the action was brought
determines upon application that in view of all the circumstances of the case,
such person is fairly and reasonably entitled to indemnity for such expenses as
the court deems proper.
 
     To the extent that the proposed indemnitee has been successful on the
merits or otherwise in defense of any action, suit or proceeding (or any claim,
issue or matter therein), he or she must be indemnified against expenses
(including attorneys' fees) actually and reasonably incurred by him in
connection therewith.
 
     BancGroup maintains an officers' and directors' insurance policy and a
separate indemnification agreement pursuant to which officers and directors of
BancGroup would be entitled to indemnification against certain liabilities,
including reimbursement of certain expenses that extends beyond the minimum
indemnification provided by Section 145 of the DGCL.
 
SPECIAL MEETINGS OF STOCKHOLDERS; ACTION WITHOUT A MEETING
 
     United American.  United American's Bylaws authorize a special shareholders
meeting to be called by the board of directors, United American's chairman of
the board or president, or by the holders of not less than ten percent of the
total voting power of all outstanding shares of voting stock.
 
     Section 607.0704 of the FBCA permits any action required or permitted of
shareholders to be taken instead without a meeting by written consent of
shareholders having not less than the minimum number of votes that would be
necessary to authorize or take such action at a meeting at which all shares
entitled to vote thereon were present and voted.
 
     BancGroup.  Under the BancGroup Certificate, a special meeting of
BancGroup's Stockholders may only be called by a majority of the BancGroup Board
of Directors or by the chairman of the Board of Directors of BancGroup. Holders
of BancGroup Common Stock may not call special meetings or act by written
consent.
 
MERGERS, SHARE EXCHANGES AND SALES OF ASSETS
 
     United American.  The FBCA provides that mergers and sales of substantially
all of the property of a Florida corporation must be approved by a majority of
the outstanding shares of the corporation entitled to vote thereon. The FBCA
also provides, however, that the shareholders of a corporation surviving a
merger need not approve the transaction if: (i) the articles of incorporation of
the surviving corporation will not differ from its articles before the merger,
and (ii) each shareholder of the surviving corporation whose shares were
outstanding immediately prior to the effective date of the merger will hold the
same number of shares with identical designations, preferences, limitations and
relative rights, immediately after the merger.
 
     BancGroup.  The DGCL provides that mergers and sales of substantially all
of the assets of Delaware corporations must be approved by a majority of the
outstanding stock of the corporation entitled to vote thereon. The DGCL also
provides, however, that the stockholders of the corporation surviving a merger
need not approve the transaction if: (i) the agreement of merger does not amend
in any respect the certificate of incorporation of such corporation; (ii) each
share of stock of such corporation outstanding immediately prior to the
effective date of the merger is to be an identical outstanding or treasury share
of the surviving corporation after the effective date of the merger; and (iii)
either no shares of common stock of the surviving corporation and no shares,
securities or obligations convertible into such stock are to be issued or
delivered under the plan of merger, or the authorized unissued shares or the
treasury shares of common stock of the surviving corporation to be issued or
delivered under the plan of merger plus those initially issuable upon conversion
of any other shares, securities or obligations to be issued or delivered under
such plan do not exceed 20% of the shares of common stock of such corporation
outstanding immediately prior to the effective date of the merger. See also
"BancGroup Capital Stock and Debentures -- Changes in Control" for a description
of the statutory provisions and the provisions of the BancGroup Certificate
relating to changes of control of
 
                                       39
<PAGE>   49
 
BancGroup. See "Antitakeover Statutes" for a description of additional
restrictions on business combination transactions.
 
AMENDMENT OF CERTIFICATE OF INCORPORATION AND BYLAWS
 
     United American.  Section 607.1002 of the FBCA permits the Board of
Directors to amend the Articles of Incorporation in certain minor respects
without shareholder action, but Section 607.1003 requires most amendments to be
adopted by the shareholders upon recommendation of the Board of Directors.
Unless the FBCA requires a greater vote, amendments may be adopted by a majority
of the votes cast, a quorum being present.
 
     Section 607.1020 of the FBCA permits the Board of Directors to amend or
repeal the bylaws unless the FBCA or the shareholders provide otherwise. The
shareholders entitled to vote have concurrent power to amend or repeal the
bylaws.
 
     BancGroup.  Under the DGCL, a Delaware corporation's certificate of
incorporation may be amended by the affirmative vote of the holders of a
majority of the outstanding shares entitled to vote thereon, and a majority of
the outstanding stock of each class entitled to vote as a class, unless the
certificate requires the vote of a larger portion of the stock. The BancGroup
Certificate requires "super-majority" Stockholder approval to amend or repeal
any provision of, or adopt any provision inconsistent with, certain provisions
in the BancGroup Certificate governing (i) the election or removal of directors,
(ii) business combinations between BancGroup and a Related Person, and (iii)
board of directors evaluation of business combination procedures. See "BancGroup
Capital Stock and Debentures -- Changes in Control."
 
     As is permitted by the DGCL, the Certificate gives the Board of Directors
the power to adopt, amend or repeal the bylaws. The Stockholders entitled to
vote have concurrent power to adopt, amend or repeal the BancGroup Bylaws.
 
RIGHTS OF DISSENTING STOCKHOLDERS
 
     United American.  Holders of United American Common Stock as of the Record
Date are entitled to dissenters' rights of appraisal under Florida law. For a
description of such appraisal rights, see "The Merger -- Rights of Dissenting
Shareholders."
 
     BancGroup.  Under the DGCL, a Stockholder has the right, in certain
circumstances, to dissent from certain corporate transactions and receive the
fair value of his or her shares in cash in lieu of the consideration he or she
otherwise would have received in the transaction. For this purpose, "fair value"
may be determined by all generally accepted techniques of valuation used in the
financial community, excluding any element of value arising from the
accomplishment or expectation of the transaction, but including elements of
future value that are known or susceptible of proof. Such fair value is
determined by the Delaware Court of Chancery if a petition for appraisal is
timely filed. Appraisal rights are not available, however, to Stockholders of a
corporation (i) if the shares are listed on a national securities exchange (as
is BancGroup Common Stock) or quoted on the Nasdaq NMS, or held of record by
more than 2,000 Stockholders (as is BancGroup Common Stock), and (ii)
Stockholders are permitted by the terms of the merger or consolidation to accept
in exchange for their shares (a) shares of stock of the surviving or resulting
corporation, (b) shares of stock of another corporation listed on a national
securities exchange or held of record by more than 2,000 stockholders, (c) cash
in lieu of fractional shares of such stock, or (d) any combination thereof.
Stockholders are not permitted appraisal rights in a merger if such corporation
is the surviving corporation and no vote of its Stockholders is required.
 
PREFERRED STOCK
 
     United American.  United American's Articles of Incorporation do not
authorize the issuance of any shares of preferred stock.
 
     BancGroup.  The BancGroup Certificate authorizes the issuance of 1,000,000
shares of Preference Stock from time to time by resolution of the Board of
Directors of BancGroup. Currently, no shares of
 
                                       40
<PAGE>   50
 
Preference Stock are issued and outstanding. See "BancGroup Capital Stock and
Debentures -- Preference Stock."
 
EFFECT OF THE MERGER ON UNITED AMERICAN SHAREHOLDERS
 
     As of           , 1997, United American had      shareholders of record and
     outstanding shares of common stock. As of September 30, 1997, there were
41,964,197 shares of BancGroup Common Stock outstanding held by 8,007
stockholders of record.
 
     Assuming that no dissenters' rights of appraisal are exercised in the
Merger, that 90,500 United American Options are exercised prior to the Effective
Date, that no United American Options are exchanged in the Cashless Exchange, an
aggregate amount of 2,294,613 shares of BancGroup Common Stock would be issued
to the shareholders of United American pursuant to the Merger. These shares
would represent approximately 5.18% of the total shares of BancGroup Common
Stock outstanding after the Merger, not counting any shares of BancGroup Common
Stock to be issued in other pending acquisitions.
 
     The issuance of the BancGroup Common Stock pursuant to the Merger will
reduce the percentage interest of the BancGroup Common Stock currently held by
each principal stockholder and each director and officer of BancGroup. Based
upon the foregoing assumptions and additional shares issued pursuant to
completed business combinations since April 30, 1997, as a group, the directors
and officers of BancGroup who own approximately 10.34% of BancGroup's
outstanding shares would own approximately 9.82% after the Merger. See "Business
of BancGroup -- Voting Securities and Principal Stockholders."
 
     BancGroup has entered into agreements pursuant to which additional shares
of BancGroup Common Stock will be issued. See "Business of BancGroup -- Proposed
Affiliate Banks."
 
                                       41
<PAGE>   51
 
                  THE COLONIAL BANCGROUP INC. AND SUBSIDIARIES
 
                   CONDENSED PRO FORMA STATEMENT OF CONDITION
                           (UNAUDITED) (IN THOUSANDS)
 
     The following summary includes (i) the condensed consolidated statement of
condition of BancGroup and subsidiaries as of June 30, 1997, (ii) the combined
presentation of the condensed consolidated statements of condition of completed
business combinations: Great Southern Bancorp, Inc. ("Great Southern"), First
Commerce Banks of Florida, Inc., ("First Commerce"), Dadeland Bancshares, Inc.
("Dadeland") and First Independence Bank of Florida ("First Independence"),
("Completed Business Combinations") as of June 30, 1997, (iii) adjustments to
give effect to the completed pooling-of-interests method business combinations
with Great Southern and First Independence and the completed purchase method
business combinations with First Commerce and Dadeland, (iv) the condensed
consolidated statements of condition of United American, (v) adjustments to give
effect to the proposed pooling-of-interests method business combination with
United American, (vi) combined presentation of condensed consolidated statements
of condition of the other probable business combinations with BancGroup; ASB
Bancshares, South Florida Banking Corp. and First Central Bank ("Other probable
business combinations") as of June 30, 1997, (vii) adjustments to give effect to
the proposed pooling-of-interests method business combinations with South
Florida and First Central Bank and the proposed purchase method business
combination with ASB, (viii) the pro forma combined condensed statement of
condition of BancGroup and subsidiaries as if such combinations had occurred on
June 30, 1997.
 
     These pro forma statements should be read in conjunction with the
accompanying notes and the separate consolidated statements of condition of The
BancGroup and subsidiaries, incorporated by reference herein. The pro forma
information provided below may not be indicative of future results.
 
                                       42
<PAGE>   52
<TABLE>
<CAPTION>
                                                                     JUNE 30, 1997
                              --------------------------------------------------------------------------------------------
                              CONSOLIDATED    COMPLETED
                                COLONIAL       BUSINESS     ADJUSTMENTS/   UNITED AMERICAN   ADJUSTMENTS/
                               BANCGROUP     COMBINATIONS   (DEDUCTIONS)    HOLDING CORP.    (DEDUCTIONS)        SUBTOTAL
                              ------------   ------------   ------------   ---------------   ------------       ----------
                                                                 (DOLLARS IN THOUSANDS)
<S>                           <C>            <C>            <C>            <C>               <C>                <C>
ASSETS
Cash and due from banks.....   $  188,777      $ 21,637       $(38,000)(3)    $ 13,053                          $  185,467
Interest-bearing deposits in
 banks......................        8,134                                          267                               8,401
Federal funds sold..........       16,567         8,543                          4,850                              29,960
Securities available for
 sale.......................      502,772        56,254           (637)(2)      30,305                             688,694
Investment securities.......      307,483         3,810                                                            311,293
Mortgage loans held for
 sale.......................      165,476                                                                          165,476
Loans, net of unearned
 income.....................    4,582,254       312,613            192(2)      181,346                           5,076,431
                                                                    26(3)
Less: Allowance for possible
 loan losses................      (58,525)       (3,986)                        (3,499)                            (66,010)
                               ----------      --------       --------        --------         --------         ----------
Loans, net..................    4,523,729       308,627            218         177,847                           5,010,421
Premises and equipment,
 net........................      114,501        12,026           (148)(2)       6,799                             132,494
                                                                  (684)(3)
Excess of cost over tangible
 and identified intangible
 assets acquired, net.......       38,991                        7,728(2)        2,106                              72,184
                                                                23,359(3)
Mortgage servicing rights...      125,342                                                                          125,342
Other real estate owned.....       10,120           712                          1,098                              11,930
Accrued interest and other
 assets.....................       98,724         8,268            508(2)        4,650                             112,744
                                                                   594(3)
                               ----------      --------       --------        --------         --------         ----------
Total assets................   $6,100,616      $419,877       $ (7,062)       $240,975                          $6,754,406
                               ==========      ========       ========        ========         ========         ==========
LIABILITIES AND
 SHAREHOLDERS' EQUITY
Deposits....................   $4,747,342      $365,774                       $209,912                          $5,323,028
FHLB short-term
 borrowings.................      610,000                                                                          610,000
Other short-term
 borrowings.................      125,479        11,827                          7,742                             145,048
Subordinated debt...........        6,676                                                                            6,676
Trust preferred
 securities.................       70,000                                                                           70,000
Other long-term debt........       15,279                                        2,600                              17,879
Other liabilities...........       94,472         2,073          1,116(2)        1,232                              99,885
                                                                   992(3)
                               ----------      --------       --------        --------         --------         ----------
Total liabilities...........    5,669,248       379,674          2,108         221,486                           6,272,516
Common Stock................      102,316         2,680            (17)(1)          17              (17)(7)        111,208
                                                                 2,320(1)                         5,276(7)
                                                                   (16)(2)
                                                                    36(2)
                                                                (2,646)(4)
                                                                 1,260(4)
                                                                    (1)(3)
Additional paid in
 capital....................      180,736        21,721         (8,206)(1)      17,775          (17,775)(7)        202,950
                                                                 5,903(1)                        12,516(7)
                                                                (6,754)(2)
                                                                15,742(2)
                                                               (15,887)(2)
                                                                 3,938(4)
                                                                (2,552)(4)
                                                                (4,207)(3)
Retained earnings...........      164,984        17,197         (2,442)(2)       1,755                             168,610
                                                               (12,884)(3)
Treasury Stock..............      (15,887)       (1,378)         1,378(3)
                                                                15,887(2)
Unearned compensation.......       (1,887)                                         (69)                             (1,956)
Unrealized gain (loss) on
 securities available for
 sale, net of taxes.........        1,106           (17)           (39)(2)          11                               1,078
                                                                    17(3)
                               ----------      --------       --------        --------         --------         ----------
Total equity................      431,368        40,203         (9,170)         19,489                             481,890
                               ----------      --------       --------        --------         --------         ----------
Total liabilities and
 equity.....................   $6,100,616      $419,877       $ (7,062)       $240,975                          $6,754,406
                               ==========      ========       ========        ========         ========         ==========
Capital Ratios:
 Capital Ratio..............         8.06%
 Tangible Leverage Ratio....         7.70
 Tier One Capital Ratio*....        10.52
 Total Capital Ratio*.......        11.92
 
<CAPTION>
                                            JUNE 30, 1997
                              ------------------------------------------
                              OTHER PROBABLE                  PRO FORMA
                                 BUSINESS      ADJUSTMENTS/    COMBINED
                               COMBINATIONS    (DEDUCTIONS)     TOTAL
                              --------------   ------------   ----------
                                        (DOLLARS IN THOUSANDS)
<S>                           <C>              <C>            <C>
ASSETS
Cash and due from banks.....     $ 17,951                     $  203,418
Interest-bearing deposits in
 banks......................           40                          8,441
Federal funds sold..........        2,600                         32,560
Securities available for
 sale.......................       76,738                        665,432
Investment securities.......       26,383                        337,676
Mortgage loans held for
 sale.......................                                     165,476
Loans, net of unearned
 income.....................      309,400                      5,385,831
 
Less: Allowance for possible
 loan losses................       (2,390)                       (68,400)
                                 --------        -------      ----------
Loans, net..................      307,010                      5,317,431
Premises and equipment,
 net........................        9,797           (115)(6)     142,176
 
Excess of cost over tangible
 and identified intangible
 assets acquired, net.......                       9,352(6)       81,536
 
Mortgage servicing rights...                                     125,342
Other real estate owned.....          994                         12,924
Accrued interest and other
 assets.....................        5,192            194(6)      118,130
 
                                 --------        -------      ----------
Total assets................     $446,705        $ 9,431      $7,210,542
                                 ========        =======      ==========
LIABILITIES AND
 SHAREHOLDERS' EQUITY
Deposits....................     $384,300                     $5,707,328
FHLB short-term
 borrowings.................                                     610,000
Other short-term
 borrowings.................       20,134                        165,182
Subordinated debt...........                       7,725(8)       14,401
Trust preferred
 securities.................                                      70,000
Other long-term debt........        1,600                         19,479
Other liabilities...........        3,160            423(8)      103,468
 
                                 --------        -------      ----------
Total liabilities...........      409,194          8,148       6,689,858
Common Stock................        2,852          1,168(6)      118,869
                                                      (2)(6)
                                                  (1,212)(5)
                                                   4,771(5)
                                                   1,722(8)
                                                  (1,638)(8)
 
Additional paid in
 capital....................       10,874         11,740(8)      220,873
                                                  (1,048)(8)
                                                  (8,688)(5)
                                                   5,129(5)
                                                   1,054(8)
                                                  (1,138)(8)
 
Retained earnings...........       24,335        (11,078)(6)     181,867
 
Treasury Stock..............         (534)           534(8)
 
Unearned compensation.......                                      (1,956)
Unrealized gain (loss) on
 securities available for
 sale, net of taxes.........          (16)           (31)(6)       1,031
 
                                 --------        -------      ----------
Total equity................       37,511          1,283         520,684
                                 --------        -------      ----------
Total liabilities and
 equity.....................     $446,705        $ 9,431      $7,210,542
                                 ========        =======      ==========
Capital Ratios:
 Capital Ratio..............                                        8.29%
 Tangible Leverage Ratio....                                        7.20
 Tier One Capital Ratio*....                                        9.82
 Total Capital Ratio*.......                                       11.35
</TABLE>
 
- ---------------
 
* Based on risk weighted assets
 
                                       43
<PAGE>   53
 
                        COMPLETED BUSINESS COMBINATIONS
 
GREAT SOUTHERN BANCORP, INC.
(pooling of interests)
 
     (1) To record the issuance of 927,975 shares of BancGroup Common Stock in
exchange for all of the outstanding shares of Great Southern:
 
<TABLE>
<CAPTION>
                                                              OUTSTANDING
                                                                SHARES
                                                              -----------
<S>                                                           <C>           <C>
Great Southern outstanding shares...........................   1,731,620
Conversion ratio............................................      0.5359
BancGroup shares issued.....................................                 927,975
Par value of 927,975 shares issued at $2.50 per share.......                $  2,320
Shares issued at par value..................................  $    2,320
Total capital stock of Great Southern.......................       8,223
Excess recorded as an increase in contributed capital.......                   5,903
                                                                            --------
                                                                               8,223
To eliminate Great Southern
  Common stock, at par value................................                     (17)
  Contributed capital.......................................                  (8,206)
                                                                            --------
                                                                              (8,223)
          Net change in equity..............................                $      0
                                                                            ========
</TABLE>
 
FIRST COMMERCE BANKS OF FLORIDA, INC.
(purchase)
 
     (2) To assign the amount by which the estimated value of BancGroup's
investment in First Commerce is in excess of the historical carrying value
amount of the net assets acquired, based on their estimated fair value of such
assets and to record the investment in First Commerce by the issuance of 685,695
shares of BancGroup Common Stock for all of the outstanding 1,585,737 shares of
First Commerce as follows:
 
<TABLE>
<S>                                                           <C>
Equity in carrying value of net assets of First Commerce....  $ 9,251
Adjustments to state assets at fair value:
  Write-down of fixed assets................................     (148)
  Write-down securities.....................................     (637)
  Write-off organization expenses and accrued expenses......       (6)
  Write-off deferred fees...................................      192
  Write-off other assets and prepaid expenses...............     (133)
Acquisition accruals:
  Broker fee................................................     (156)
  Buy out option holders....................................     (238)
  Buy out data processing contract..........................     (540)
  Other legal, accounting and professional..................     (182)
Tax effect of purchase adjustments..........................      647
Goodwill....................................................    7,728
                                                              -------
Adjusted equity in carrying value of net assets.............  $15,778
                                                              =======
Allocated as follows:
  Cost of 671,165 shares of BancGroup Common Stock purchased
     and re-issued for First Commerce outstanding shares....  $15,887
  Issuance of an additional 14,530 shares of BancGroup
     Common Stock...........................................       36
  Adjustment to contributed capital for difference in cost
     of treasury stock and fair value at date of re-issue...     (145)
                                                              -------
          Total purchase price..............................  $15,778
                                                              =======
</TABLE>
 
                                       44
<PAGE>   54
 
DADELAND BANCSHARES, INC.
(purchase)
 
     (3) To assign the amount by which the estimated value of BancGroup's
investment in Dadeland is in excess of the historical carrying value amount of
the net assets acquired, based on their estimated fair value of such assets:
 
<TABLE>
<S>                                                           <C>
Equity in carrying value of net assets of Dadeland..........  $15,697
Adjustments to state assets at fair value:
  Write-up loans............................................       26
  Write-down of fixed assets................................     (684)
Acquisition accruals:
  Accrue income taxes.......................................      (84)
  Accounts payable and other miscellaneous..................     (112)
  Buy out data processing contract..........................      (20)
  Accrue executive severance................................     (766)
  Legal, accounting, professional...........................      (10)
Tax effect of purchase adjustments..........................      594
Goodwill....................................................   23,359
                                                              -------
                                                               22,277
Adjusted equity in carrying value of net assets.............  $38,000
                                                              =======
          Total purchase price to be paid in cash...........  $38,000
                                                              =======
</TABLE>
 
FIRST INDEPENDENCE BANK OF FLORIDA
(pooling of interests)
 
     (4) To record the issuance of 504,075 shares of BancGroup Common Stock in
exchange for all of the outstanding shares and warrants of First Independence:
 
<TABLE>
<CAPTION>
                                                              OUTSTANDING
                                                                SHARES
                                                              -----------
<S>                                                           <C>           <C>
First Independence outstanding shares.......................    640,674
First Independence warrants (converted according to merger
  agreement)................................................    104,285
Conversion ratio -- shares..................................     0.7257
Conversion ratio -- warrants................................     0.3753
BancGroup shares to be issued...............................                  504,075
Par value of 504,075 shares issued at $2.50 per share.......                 $  1,260
Shares issued at par value..................................   $  1,260
Total capital stock of First Independence...................      5,198
Excess recorded as an increase to contributed capital.......                    3,938
                                                                             --------
                                                                                5,198
To eliminate First Independence Common stock, at par
  value.....................................................                   (2,646)
  Contributed capital.......................................                   (2,552)
                                                                             --------
                                                                               (5,198)
          Net change in equity..............................                 $      0
                                                                             ========
</TABLE>
 
                                       45
<PAGE>   55
 
PENDING BUSINESS COMBINATIONS
SOUTH FLORIDA BANKING CORP.
(pooling of interests)
 
     (5) To record the issuance of 1,908,415 shares of BancGroup Common Stock in
exchange for all of the outstanding shares of South Florida Banking Corp.
 
<TABLE>
<CAPTION>
                                                              OUTSTANDING
                                                                SHARES
                                                              -----------
<S>                                                           <C>           <C>
South Florida outstanding shares............................   1,212,000
Conversion ratio............................................      1.5746*
BancGroup shares to be issued...............................                 1,908,415
Par value of 1,908,415 shares issued at $2.50 per share.....                 $   4,771
Shares issued at par value 1,908,415 X 2.50.................   $   4,771
Total capital stock of South Florida........................       9,900
Excess recorded as an increase to contributed capital.......                     5,129
                                                                             ---------
                                                                                 9,900
To eliminate South Florida
  Common stock, at par value................................                    (1,212)
  Contributed capital.......................................                    (8,688)
                                                                             ---------
                                                                                (9,900)
          Net change in equity..............................                 $       0
                                                                             =========
</TABLE>
 
- ---------------
 
* The conversion ratio may be adjusted to 1.5908 upon the occurrence of certain
  events as defined in the Agreement.
 
ASB BANCSHARES
(purchase)
 
     (6) To assign the amount by which the estimated value of BancGroup's
investment in ASB is in excess of the historical carrying value amount of the
net assets acquired, based on their estimated fair value of such assets:
 
<TABLE>
<S>                                                           <C>
Equity in carrying value of net assets of ASB...............  $11,625
Adjustments to state assets at fair value:
  Write-off computer software and hardware..................     (115)
Acquisition accruals:
  Present value of deferred compensation....................     (393)
  Litigation accrual........................................      (15)
  Legal, accounting and professional........................      (15)
Tax effect of purchase adjustments..........................      194
Goodwill....................................................    9,352
                                                              -------
                                                                9,008
Adjusted equity in carrying value of net assets.............  $20,633
                                                              =======
Allocated as follows:
  Subordinated debentures for 31,506 shares of ASB
     $7,724,799.............................................  $ 7,725
  Shares to be issued at par value 467,398 X 2.50...........    1,168
  Additional paid in capital................................   11,740
                                                              -------
          Total purchase price to be paid in stock and
           debt.............................................  $20,633
                                                              =======
</TABLE>
 
                                       46
<PAGE>   56
 
UNITED AMERICAN HOLDING CORPORATION
(pooling of interests)
 
     (7) To record the issuance of 2,110,563 shares of BancGroup Common Stock in
exchange for all of the outstanding shares of United American:
 
<TABLE>
<CAPTION>
                                                              OUTSTANDING
                                                                SHARES
                                                              -----------
<S>                                                           <C>           <C>
United American outstanding shares..........................    1,720,100
Conversion ratio............................................       1.2270
BancGroup shares to be issued...............................                 2,110,563
Par value of 2,110,563 shares issued at $2.50 per share.....                $    5,276
Shares issued at par value..................................   $    5,276
Total capital stock of United American......................       17,792
Excess recorded as an increase to contributed capital.......                    12,516
                                                                            ----------
                                                                                17,792
To eliminate United American
  Common stock, at par value................................                       (17)
  Contributed capital.......................................                   (17,775)
                                                                            ----------
                                                                               (17,792)
     Net change in equity...................................                $        0
                                                                            ==========
</TABLE>
 
FIRST CENTRAL BANK
(pooling of interests)
 
     (8) To record the issuance of 688,742 shares of BancGroup Common Stock in
exchange for all of the outstanding shares of First Central:
 
<TABLE>
<CAPTION>
                                                              OUTSTANDING
                                                                SHARES
                                                              -----------
<S>                                                           <C>           <C>
First Central outstanding shares............................    327,500
Conversion ratio............................................     2.1030
BancGroup shares to be issued...............................                  688,742
Par value of 688,742 shares issued at $2.50 per share.......                 $  1,722
Shares issued at par value..................................   $  1,722
Total capital stock of First Central........................      2,776
Excess recorded as an increase to contributed capital.......                    1,054
                                                                             --------
                                                                                2,776
To eliminate First Central Common stock, at par value.......                   (1,638)
  Contributed capital.......................................                   (1,138)
                                                                             --------
                                                                               (2,776)
          Net change in equity..............................                 $      0
                                                                             ========
</TABLE>
 
                                       47
<PAGE>   57
 
                 THE COLONIAL BANCGROUP, INC. AND SUBSIDIARIES
 
              CONDENSED PRO FORMA STATEMENT OF INCOME (UNAUDITED)
                                 (IN THOUSANDS)
 
     The following summary includes (i) the condensed consolidated statements of
income of BancGroup and subsidiaries on a historical basis for the six months
ended June 30, 1997 and 1996 and the years ended December 31, 1996, 1995, and
1994,(ii) the combined presentation of condensed consolidated statements of
income of the completed business combinations: Great Southern Bancorp, Inc.,
First Commerce Banks of Florida, Inc., Dadeland Bancshares, Inc. and First
Independence Bank of Florida ("Completed Business Combinations"), for the six
months ended June 30, 1997 and 1996 and the years ended December 31, 1996, 1995,
and 1994, (iii) adjustments to give effect to the completed pooling-of-interests
method business combinations with Great Southern and First Independence and the
completed purchase method business combinations with First Commerce and
Dadeland, (iv) the condensed consolidated statements of income of United
American for the six months ended June 30, 1997 and 1996 and the years ended
December 31, 1996, 1995, and 1994,(v) adjustments to give effect to the proposed
pooling-of-interests method business combination with United American, (vi) the
combined presentation of condensed consolidated statements of income of the
other probable business combinations with BancGroup; ASB Bancshares, Inc., South
Florida Banking Corp. and First Central Bank, ("Other Probable Business
Combinations"), for the six months ended June 30, 1997 and 1996 and the years
ended December 31, 1996, 1995, and 1994, (vii) adjustments to give effect to the
probable pooling-of-interests method business combinations with South Florida
and First Central and the probable purchase method business combination with
ASB, (viii) the pro forma statements of income of BancGroup and subsidiaries as
if such business combinations had occurred on January 1, 1994. Note that for the
purchase method combinations, Article 11 of Regulation S-X requires pro forma
statements of income for only the most recent fiscal year and interim period.
Accordingly, only the condensed consolidated statements of income for the six
months ended June 30, 1997 and the year ended December 31, 1996 are included in
(ii), (iii), (vi) and (vii) above for First Commerce, Dadeland and ASB.
 
     These pro forma statements should be read in conjunction with the
accompanying notes and the separate consolidated statements of income of
BancGroup and subsidiaries, incorporated by reference herein, and the statements
of income of United American, included elsewhere herein. The pro forma
information provided may not necessarily be indicative of future results.
<TABLE>
<CAPTION>
                                                      SIX MONTHS ENDED JUNE 30, 1997
                            -----------------------------------------------------------------------------------
 
                            CONSOLIDATED    COMPLETED
                              COLONIAL       BUSINESS     ADJUSTMENTS/     UNITED     ADJUSTMENTS/
                             BANCGROUP     COMBINATIONS   (DEDUCTIONS)    AMERICAN    (DEDUCTIONS)    SUBTOTAL
                            ------------   ------------   ------------    ---------   ------------   ----------
                                              (DOLLARS IN THOUSANDS EXCEPT PER SHARE AMOUNTS)
<S>                         <C>            <C>            <C>             <C>         <C>            <C>
Interest income...........   $  231,674     $  16,914      $     (474)(1) $   9,112                  $  257,222
                                                                   (4)(1)
Interest expense..........      117,445         5,566                         3,661                     126,672
                             ----------     ---------      ----------     ---------    ----------    ----------
Net interest income.......      114,229        11,348            (478)        5,451                     130,550
Provision for loan
 losses...................        6,190         2,937                           303                       9,430
                             ----------     ---------      ----------     ---------    ----------    ----------
Net interest income after
 provision for loan
 losses...................      108,039         8,411            (478)        5,148                     121,120
                             ----------     ---------      ----------     ---------    ----------    ----------
Noninterest income........       39,627         2,331                         1,130                      43,088
Noninterest expense.......       90,051        11,278             (15)(1)     4,355                     106,637
                                                                  258(1)
                                                                  (69)(2)
                                                                  779(2)
                             ----------     ---------      ----------     ---------    ----------    ----------
Income before income
 taxes....................       57,615          (536)         (1,431)        1,923                      57,571
Applicable income taxes...       21,286          (152)           (162)(1)       763                      21,759
                                                                   24(2)
                             ----------     ---------      ----------     ---------    ----------    ----------
Net income................   $   36,329     $    (384)     $   (1,293)    $   1,160                  $   35,812
                             ==========     =========      ==========     =========    ==========    ==========
Average primary shares
 outstanding..............   41,231,000     3,834,201      (3,834,201)    1,609,910    (1,609,910)   45,427,368
                                                            2,068,812                   2,127,556
Average fully-diluted
 shares outstanding.......   41,798,000     3,834,201      (3,834,201)    1,609,910    (1,609,910)   46,011,498
                                                            2,080,518                   2,132,980
Earnings per share:
 Net income:
   Primary................   $     0.88                                                              $     0.79
   Fully diluted..........   $     0.87                                                              $     0.78
 
<CAPTION>
                                 SIX MONTHS ENDED JUNE 30, 1997
                            -----------------------------------------
                               OTHER
                              PROBABLE                     PRO FORMA
                              BUSINESS     ADJUSTMENTS/     COMBINED
                            COMBINATIONS   (DEDUCTIONS)      TOTAL
                            ------------   ------------    ----------
 
<S>                         <C>            <C>             <C>
Interest income...........   $  16,856                     $  274,078
 
Interest expense..........       7,255             290(3)     134,217
                             ---------      ----------     ----------
Net interest income.......       9,601            (290)       139,861
Provision for loan
 losses...................         242                          9,672
                             ---------      ----------     ----------
Net interest income after
 provision for loan
 losses...................       9,359            (290)       130,189
                             ---------      ----------     ----------
Noninterest income........       1,646                         44,734
Noninterest expense.......       7,235             (12)(3)    114,172
                                                   312(3)
 
                             ---------      ----------     ----------
Income before income
 taxes....................       3,770            (590)        60,751
Applicable income taxes...       1,229            (108)(3)     22,880
 
                             ---------      ----------     ----------
Net income................   $   2,541      $     (482)    $   37,871
                             =========      ==========     ==========
Average primary shares
 outstanding..............   1,643,280      (1,643,280)    48,833,933
                                             3,406,565
Average fully-diluted
 shares outstanding.......   1,643,280      (1,643,280)    49,420,879
                                             3,409,381
Earnings per share:
 Net income:
   Primary................                                 $     0.78
   Fully diluted..........                                 $     0.77
</TABLE>
 
                                       48
<PAGE>   58
<TABLE>
<CAPTION>
                                                         SIX MONTHS ENDED JUNE 30, 1996
                                ---------------------------------------------------------------------------------
                                CONSOLIDATED
                                  COLONIAL      COMPLETED
                                 BANCGROUP       BUSINESS     ADJUSTMENTS/    UNITED    ADJUSTMENTS/
                                (RESTATED)*    COMBINATIONS   (DEDUCTIONS)   AMERICAN   (DEDUCTIONS)    SUBTOTAL
                                ------------   ------------   ------------   --------   ------------   ----------
                                                 (DOLLARS IN THOUSANDS EXCEPT PER SHARE AMOUNTS)
<S>                             <C>            <C>            <C>            <C>        <C>            <C>
Interest income...............   $  196,099     $   6,292                    $ 6,711                   $  209,102
Interest expense..............       98,782         2,133                      2,546                      103,461
                                 ----------     ---------      ----------    -------     ----------    ----------
Net interest income...........       97,317         4,159                      4,165                      105,641
Provision for loan losses.....        3,623            50                        186                        3,859
                                 ----------     ---------      ----------    -------     ----------    ----------
Net interest income after
 provision for loan losses....       93,694         4,109                      3,979                      101,782
                                 ----------     ---------      ----------    -------     ----------    ----------
Noninterest income............       35,923           734                        787                       37,444
Noninterest expense...........       82,986         3,290                      3,074                       89,350
                                 ----------     ---------      ----------    -------     ----------    ----------
Income before income taxes....       46,631         1,553                      1,692                       49,876
Applicable income taxes.......       16,434           452                        664                       17,550
                                 ----------     ---------      ----------    -------     ----------    ----------
Net income....................   $   30,197     $   1,101                    $ 1,028                   $   32,326
                                 ==========     =========      ==========    =======     ==========    ==========
Average primary shares
 outstanding**................   38,950,000     2,071,527      (2,071,527)   1,498,333   (1,498,333)   42,142,174
                                                                1,276,109                 1,916,065
Average fully-diluted shares
 outstanding**................   39,624,000     2,071,527      (2,071,527)   1,498,333   (1,498,333)   42,817,222
                                                                1,276,877                 1,916,345
Earnings per share:
 Net income:
   Primary**..................   $     0.78                                                            $     0.77
   Fully diluted**............   $     0.77                                                            $     0.76
 
<CAPTION>
                                     SIX MONTHS ENDED JUNE 30, 1996
                                ----------------------------------------
                                   OTHER
                                  PROBABLE                    PRO FORMA
                                  BUSINESS     ADJUSTMENTS/    COMBINED
                                COMBINATIONS   (DEDUCTIONS)     TOTAL
                                ------------   ------------   ----------
 
<S>                             <C>            <C>            <C>
Interest income...............   $  10,103                    $  219,205
Interest expense..............       3,967                       107,428
                                 ---------      ----------    ----------
Net interest income...........       6,136                       111,777
Provision for loan losses.....         382                         4,241
                                 ---------      ----------    ----------
Net interest income after
 provision for loan losses....       5,754                       107,536
                                 ---------      ----------    ----------
Noninterest income............       1,142                        38,586
Noninterest expense...........       4,455                        93,805
                                 ---------      ----------    ----------
Income before income taxes....       2,441                        52,317
Applicable income taxes.......         830                        18,380
                                 ---------      ----------    ----------
Net income....................   $   1,611                    $   33,937
                                 =========      ==========    ==========
Average primary shares
 outstanding**................   1,544,677      (1,544,677)   44,765,946
                                                 2,623,772
Average fully-diluted shares
 outstanding**................   1,544,677      (1,544,677)   45,441,263
                                                 2,624,041
Earnings per share:
 Net income:
   Primary**..................                                $     0.76
   Fully diluted**............                                $     0.75
</TABLE>
 
- ---------------
 
 * Restated to give retroactive effect to the April 22, 1997
   pooling-of-interests business combination with Fort Brooke Bancorporation.
** Restated to reflect the impact of a two-for-one stock split in the form of a
   100% stock dividend paid on February 11, 1997.
 
                                       49
<PAGE>   59
<TABLE>
<CAPTION>
                                                       YEAR ENDED DECEMBER 31, 1996
                           ------------------------------------------------------------------------------------
                           CONSOLIDATED
                             COLONIAL      COMPLETED
                            BANCGROUP       BUSINESS     ADJUSTMENTS/      UNITED     ADJUSTMENTS/
                           (RESTATED)*    COMBINATIONS   (DEDUCTIONS)     AMERICAN    (DEDUCTIONS)    SUBTOTAL
                           ------------   ------------   ------------     ---------   ------------   ----------
                                             (DOLLARS IN THOUSANDS EXCEPT PER SHARE AMOUNTS)
<S>                        <C>            <C>            <C>              <C>         <C>            <C>
Interest income..........   $  406,838     $  31,212      $     (948)(1)  $  14,623                  $  451,717
                                                                  (8)(1)
Interest expense.........      205,843        10,337                          5,513                     221,693
                            ----------     ---------      ----------      ---------    ----------    ----------
Net interest income......      200,995        20,875            (956)         9,110                     230,024
Provision for loan
 losses..................       12,545         1,238                            396                      14,179
                            ----------     ---------      ----------      ---------    ----------    ----------
Net interest income after
 provision for loan
 losses..................      188,450        19,637            (956)         8,714                     215,845
                            ----------     ---------      ----------      ---------    ----------    ----------
Noninterest income.......       72,382         4,447                          1,845                      78,674
Noninterest expense......      183,316        18,693             (30)(1)      6,466                     210,380
                                                                 515(1)
                                                                (137)(2)
                                                               1,557(2)
                            ----------     ---------      ----------      ---------    ----------    ----------
Income before income
 taxes...................       77,516         5,391          (2,861)         4,093                      84,139
Applicable income
 taxes...................       27,303         1,774            (324)(1)      1,609                      30,411
                                                                  49(2)
                            ----------     ---------      ----------      ---------    ----------    ----------
Net income...............   $   50,213     $   3,617      $   (2,586)     $   2,484                  $   53,728
                            ==========     =========      ==========      =========    ==========    ==========
Average primary shares
 outstanding**...........   39,764,000     3,798,244      (3,798,244)     1,500,021    (1,500,021)   43,718,366
                                                           2,020,486                    1,933,880
Average fully-diluted
 shares outstanding**....   40,623,000     3,798,244      (3,798,244)     1,500,021    (1,500,021)   44,611,790
                                                           2,044,599                    1,944,191
Earnings per share:
 Net income:
   Primary**.............   $     1.26                                                               $     1.23
   Fully diluted**.......   $     1.25                                                               $     1.21
 
<CAPTION>
                                 YEAR ENDED DECEMBER 31, 1996
                           -----------------------------------------
                              OTHER
                             PROBABLE                     PRO FORMA
                             BUSINESS     ADJUSTMENTS/     COMBINED
                           COMBINATIONS   (DEDUCTIONS)      TOTAL
                           ------------   ------------    ----------
 
<S>                        <C>            <C>             <C>
Interest income..........   $  31,369                     $  483,086
 
Interest expense.........      13,279             579(3)     235,551
                            ---------      ----------     ----------
Net interest income......      18,090            (579)       247,535
Provision for loan
 losses..................         683                         14,862
                            ---------      ----------     ----------
Net interest income after
 provision for loan
 losses..................      17,407            (579)       232,673
                            ---------      ----------     ----------
Noninterest income.......       2,989                         81,663
Noninterest expense......      12,903             (23)(3)    223,883
                                                  623(3)
 
                            ---------      ----------     ----------
Income before income
 taxes...................       7,493          (1,179)        90,453
Applicable income
 taxes...................       2,461            (217)(3)     32,655
 
                            ---------      ----------     ----------
Net income...............   $   5,032      $     (962)    $   57,798
                            =========      ==========     ==========
Average primary shares
 outstanding**...........   1,634,686      (1,634,686)    47,112,400
                                            3,394,034
Average fully-diluted
 shares outstanding**....   1,634,686      (1,634,686)    48,013,991
                                            3,402,201
Earnings per share:
 Net income:
   Primary**.............                                 $     1.23
   Fully diluted**.......                                 $     1.21
</TABLE>
 
- ---------------
 
 * Restated to give retroactive effect to the April 22, 1997 pooling-of-
   interests business combination with Fort Brooke Bancorporation.
** Restated to reflect the impact of a two-for-one stock split in the form of a
   100% stock dividend paid on February 11, 1997.
 
                                       50
<PAGE>   60
<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31, 1995
                               -----------------------------------------------------------------------------------
                               CONSOLIDATED
                                 COLONIAL      COMPLETED
                                BANCGROUP       BUSINESS     ADJUSTMENTS/     UNITED     ADJUSTMENTS/
                               (RESTATED)*    COMBINATIONS   (DEDUCTIONS)    AMERICAN    (DEDUCTIONS)    SUBTOTAL
                               ------------   ------------   ------------   ----------   ------------   ----------
                                                 (DOLLARS IN THOUSANDS EXCEPT PER SHARE AMOUNTS)
<S>                            <C>            <C>            <C>            <C>          <C>            <C>
Interest income..............   $  341,826     $  11,929                    $   11,764                  $  365,519
Interest expense.............      170,483         4,516                         4,558                     179,557
                                ----------     ---------      ----------    ----------    ----------    ----------
Net interest income..........      171,343         7,413                         7,206                     185,962
Provision for loan losses....        8,986            68                           615                       9,669
                                ----------     ---------      ----------    ----------    ----------    ----------
Net interest income after
 provision for loan losses...      162,357         7,345                         6,591                     176,293
                                ----------     ---------      ----------    ----------    ----------    ----------
Noninterest income...........       60,527         1,268                         1,273                      63,068
Noninterest expense..........      150,654         7,408                         5,477                     163,539
                                ----------     ---------      ----------    ----------    ----------    ----------
Income before income taxes...       72,230         1,205                         2,387                      75,822
Income taxes.................       25,765           740                           668                      27,173
                                ----------     ---------      ----------    ----------    ----------    ----------
Net income...................   $   46,465     $     465      $        0    $    1,719                  $   48,649
                                ==========     =========      ==========    ==========    ==========    ==========
Average primary shares
 outstanding**...............   37,912,000     2,022,212      (2,022,212)    1,389,508    (1,389,508)   40,902,708
                                                               1,225,276                   1,765,432
Average fully-diluted shares
 outstanding**...............   39,796,000     2,022,212      (2,022,212)    1,389,508    (1,389,508)   42,834,523
                                                               1,258,300                   1,780,223
Earnings per share:
 Net income:
   Primary**.................   $     1.23                                                              $     1.19
   Fully diluted**...........   $     1.19                                                              $     1.16
 
<CAPTION>
                                     YEAR ENDED DECEMBER 31, 1995
                               ----------------------------------------
                                  OTHER
                                 PROBABLE                    PRO FORMA
                                 BUSINESS     ADJUSTMENTS/    COMBINED
                               COMBINATIONS   (DEDUCTIONS)     TOTAL
                               ------------   ------------   ----------
 
<S>                            <C>            <C>            <C>
Interest income..............   $  18,395                    $  383,914
Interest expense.............       7,400                       186,957
                                ---------      ----------    ----------
Net interest income..........      10,995                       196,957
Provision for loan losses....         579                        10,248
                                ---------      ----------    ----------
Net interest income after
 provision for loan losses...      10,416                       186,709
                                ---------      ----------    ----------
Noninterest income...........       1,680                        64,748
Noninterest expense..........       8,608                       172,147
                                ---------      ----------    ----------
Income before income taxes...       3,488                        79,310
Income taxes.................       1,029                        28,202
                                ---------      ----------    ----------
Net income...................   $   2,459                    $   51,108
                                =========      ==========    ==========
Average primary shares
 outstanding**...............   1,540,278      (1,540,278)   43,506,616
                                                2,603,908
Average fully-diluted shares
 outstanding**...............   1,540,278      (1,540,278)   45,452,278
                                                2,617,755
Earnings per share:
 Net income:
   Primary**.................                                $     1.17
   Fully diluted**...........                                $     1.15
</TABLE>
 
- ---------------
 
 * Restated to give retroactive effect to the April 22, 1997
   pooling-of-interests business combination with Fort Brooke Bancorporation.
** Restated to reflect the impact of a two-for-one stock split in the form of a
   100% stock dividend paid on February 11, 1997.
 
                                       51
<PAGE>   61
<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31, 1994
                                ---------------------------------------------------------------------------------
                                CONSOLIDATED
                                  COLONIAL      COMPLETED
                                 BANCGROUP       BUSINESS     ADJUSTMENTS/    UNITED    ADJUSTMENTS/
                                (RESTATED)*    COMBINATIONS   (DEDUCTIONS)   AMERICAN   (DEDUCTIONS)    SUBTOTAL
                                ------------   ------------   ------------   --------   ------------   ----------
                                                 (DOLLARS IN THOUSANDS EXCEPT PER SHARE AMOUNTS)
<S>                             <C>            <C>            <C>            <C>         <C>           <C>
Interest income...............   $  255,758     $   9,697                    $  7,401                  $  272,856
Interest expense..............      105,797         3,161                       2,767                     111,725
                                 ----------     ---------      ----------    --------    ---------     ----------
Net interest income...........      149,961         6,536                       4,634                     161,131
Provision for loan losses.....        8,254           302                         419                       8,975
                                 ----------     ---------      ----------    --------    ---------     ----------
Net interest income after
 provision for loan losses....      141,707         6,234                       4,215                     152,156
                                 ----------     ---------      ----------    --------    ---------     ----------
Noninterest income............       54,149         1,104                       1,077                      56,330
Noninterest expense...........      144,119         6,150                       4,484                     154,753
                                 ----------     ---------      ----------    --------    ---------     ----------
Income before income taxes....       51,737         1,188                         808                      53,733
Income taxes..................       17,243           481                          17                      17,741
                                 ----------     ---------      ----------    --------    ---------     ----------
Net income....................   $   34,494     $     707                    $    791                  $   35,992
                                 ==========     =========      ==========    ========    =========     ==========
Average primary shares
 outstanding**................   35,907,000     1,835,283      (1,835,283)    840,800     (840,800)    38,046,490
                                                                1,067,761                1,071,729
Average fully-diluted shares                                                          
 outstanding**................   37,383,000     1,835,283      (1,835,283)    840,800     (840,800)    39,522,490
                                                                1,067,761                1,071,729
Earnings per share:
 Net income:
   Primary**..................   $     0.96                                                            $     0.95
   Fully diluted**............   $     0.95                                                            $     0.94
 
<CAPTION>
                                      YEAR ENDED DECEMBER 31, 1994
                                ----------------------------------------
                                   OTHER
                                  PROBABLE                    PRO FORMA
                                  BUSINESS     ADJUSTMENTS/    COMBINED
                                COMBINATIONS   (DEDUCTIONS)     TOTAL
                                ------------   ------------   ----------
 
<S>                             <C>            <C>            <C>
Interest income...............   $  15,064                    $  287,920
Interest expense..............       5,150                       116,875
                                 ---------      ----------    ----------
Net interest income...........       9,914                       171,045
Provision for loan losses.....         271                         9,246
                                 ---------      ----------    ----------
Net interest income after
 provision for loan losses....       9,643                       161,799
                                 ---------      ----------    ----------
Noninterest income............       1,341                        57,671
Noninterest expense...........       6,828                       161,581
                                 ---------      ----------    ----------
Income before income taxes....       4,156                        57,889
Income taxes..................       1,350                        19,091
                                 ---------      ----------    ----------
Net income....................   $   2,806                    $   38,798
                                 =========      ==========    ==========
Average primary shares
 outstanding**................   1,526,230      (1,526,230)   40,625,307
                                                 2,578,817
Average fully-diluted shares
 outstanding**................   1,526,230      (1,526,230)   42,101,307
                                                 2,578,817
Earnings per share:
 Net income:
   Primary**..................                                $     0.96
   Fully diluted**............                                $     0.95
</TABLE>
 
- ---------------
 
 * Restated to give retroactive effect to the April 22, 1997
   pooling-of-interests business combination with Fort Brooke Bancorporation.
** Restated to reflect the impact of a two-for-one stock split in the form of a
   100% stock dividend paid on February 11, 1997.
 
                                       52
<PAGE>   62
 
PRO FORMA ADJUSTMENTS:
 
COMPLETED BUSINESS COMBINATIONS
 
     Adjustments applicable to the purchase method business combination with
First Commerce:
 
          (1) To amortize the assignment of estimated fair value in excess of
     the carrying amount of assets acquired. The amortization consists of the
     following:
 
<TABLE>
<CAPTION>
                                                     SIX MONTHS
                                                        ENDED          YEAR ENDED
                                                    JUNE 30, 1997   DECEMBER 31, 1996
                                                    -------------   -----------------
                                                             (IN THOUSANDS)
<S>                                                 <C>             <C>
Increases in income:
  Amortization of write down on fixed assets (5
     year period).................................  $        15          $    30
Decreases in income:
  Amortization of write-up on securities portfolio
     (5 year period)..............................           (4)              (8)
  Earnings foregone on $15,887,000 cash at an
     average interest rate of 5.95%...............         (474)            (948)
                                                    -------------        -------
          Total...................................         (463)            (926)
                                                    -------------        -------
Increase in expense:
  Amortization of goodwill (15 year period).......         (258)            (515)
                                                    -------------        -------
          Total...................................         (258)            (515)
                                                    -------------        -------
Net decrease in income before taxes...............         (721)          (1,441)
                                                    -------------        -------
Tax effect of the pro forma adjustments (other
  than goodwill amortization).....................          162              324
                                                    -------------        -------
Net decrease in income............................  $      (559)         $(1,117)
                                                    -------------        -------
</TABLE>
 
     Adjustments applicable to the purchase method business combination with
Dadeland:
 
          (2) To amortize the assignment of estimated fair value in excess of
     the carrying amount of assets acquired. The amortization consists of the
     following:
 
<TABLE>
<CAPTION>
                                                    SIX MONTHS
                                                       ENDED          YEAR ENDED
                                                   JUNE 30, 1997   DECEMBER 31, 1996
                                                   -------------   -----------------
<S>                                                <C>             <C>
Increases in income:
  Amortization of write-down on fixed assets (5
     year period)................................  $        69          $   137
                                                   -------------        -------
          Total..................................           69              137
                                                   -------------        -------
Increase in expense:
  Amortization of goodwill (15 year period)......         (779)          (1,557)
                                                   -------------        -------
          Total..................................         (779)          (1,557)
                                                   -------------        -------
Net decrease in income before tax................         (710)          (1,420)
                                                   -------------        -------
Tax effect of the pro forma adjustments (other
  than goodwill amortization)....................          (24)             (49)
                                                   -------------        -------
Net decrease in income...........................  $      (734)         $(1,469)
                                                   =============        =======
</TABLE>
 
                                       53
<PAGE>   63
 
PENDING BUSINESS COMBINATIONS
 
     Adjustments applicable to the purchase method business combination with ASB
Bancshares:
 
          (3) To amortize the assignment of estimated fair value in excess of
     the carrying amount of assets acquired. The amortization consists of the
     following:
 
<TABLE>
<CAPTION>
                                                 SIX MONTHS
                                                    ENDED          YEAR ENDED
                                                JUNE 30, 1997   DECEMBER 31, 1996
                                                -------------   -----------------
<S>                                             <C>             <C>
Increases in income:
  Amortization of write-down on fixed assets
     (5 year period)..........................      $  12            $   23
                                                    -----          --------
          Total...............................         12                23
                                                    -----          --------
Increase in expense:
  Interest on subordinated debentures (assumed
     at 7.5%).................................       (290)             (579)
Amortization of goodwill (15 year period).....       (312)             (623)
                                                    -----          --------
          Total...............................       (602)           (1,202)
                                                    -----          --------
Net decrease in income before tax.............       (590)           (1,179)
                                                    -----          --------
Tax effect of the pro forma adjustments (other
  than goodwill amortization).................        108              (217)
                                                    -----          --------
Net decrease in income........................      $(482)           $ (962)
                                                    =====          ========
</TABLE>
 
                                       54
<PAGE>   64
 
                        RECENT DEVELOPMENTS -- BANCGROUP
 
                     BANCGROUP -- RECENT UNAUDITED RESULTS
 
     The following table presents certain unaudited data for BancGroup for the
period ended September 30, 1997. Unaudited historical data reflect, in the
opinion of management, all adjustments (consisting of normal recurring
adjustments) necessary to a fair presentation of such data. The unaudited
financial information is presented for informational purposes only and is not
necessarily indicative of the financial position or results of operations which
would have actually occurred if the transactions had been consummated in the
past or which may be obtained in the future.
 
<TABLE>
<CAPTION>
                                                                                            % CHANGE
                                                          SEPTEMBER 30,   SEPTEMBER 30,   SEPTEMBER 30,
                                                              1997            1996        1996 TO 1997
                                                          -------------   -------------   -------------
                                                                     (DOLLARS IN THOUSANDS,
                                                                    EXCEPT PER SHARE AMOUNTS)
<S>                                                       <C>             <C>             <C>
STATEMENT OF CONDITION SUMMARY
Total assets............................................   $6,605,927      $5,493,617          20%
Loans, net of unearned income...........................    4,970,765       4,089,404          22%
Total earnings assets...................................    6,006,662       5,046,539          19%
Deposits................................................    5,136,556       4,237,610          21%
Shareholders' equity....................................      472,707         392,822          20%
Book value per share....................................   $    11.26      $    10.09          12%
</TABLE>
 
<TABLE>
<CAPTION>
                                                               NINE MONTHS ENDED SEPTEMBER 30,
                                                              ---------------------------------
                                                                                      % CHANGE
                                                                1997        1996      96 TO 97
                                                              ---------   ---------   ---------
<S>                                                           <C>         <C>         <C>
EARNINGS SUMMARY
Net interest income (taxable equivalent)....................   $182,126    $151,317       20%
Provision for loan losses...................................      8,833       6,292       40%
Noninterest income..........................................     61,623      53,900       14%
Noninterest expense.........................................    143,609     129,378       11%
Net income..................................................     56,054      43,832       28%
Average primary shares outstanding..........................     42,370      39,525
Average fully diluted shares outstanding....................     42,963      40,204
Earnings per share:
  Primary...................................................   $   1.32    $   1.11       19%
  Fully diluted.............................................   $   1.31    $   1.10       19%
</TABLE>
 
<TABLE>
<CAPTION>
                                                               NINE MONTHS
                                                                  ENDED
                                                              SEPTEMBER 30,
                                                              -------------
                                                              1997    1996
                                                              -----   -----
<S>                                                           <C>     <C>
SELECTED RATIOS:
Return on average assets....................................   1.21%   1.12%
Return on average equity....................................  16.84%  15.51%
Efficiency ratio............................................  58.92%  63.04%
Equity to assets............................................   7.16%   7.15%
Total capital...............................................   8.11%   8.17%
Tier one leverage...........................................   7.28%   6.82%
</TABLE>
 
     Net income for the nine months ended September 30, 1997 was $56,054,000
compared to $43,832,000 for the same period in 1996, a 28% increase. Earnings
per share for the nine months ended September 30, 1997 was $1.31 on a fully
diluted basis, a 19% increase over the same period in 1996. The company's return
on average equity was 16.84% compared with 15.51% in 1996. Return on average
assets was 1.21% compared to 1.12% for 1996.
 
                                       55
<PAGE>   65
 
                 THE COLONIAL BANCGROUP, INC. AND SUBSIDIARIES
 
                  SELECTED FINANCIAL AND OPERATING INFORMATION
 
     The following tables present certain financial information for BancGroup on
a historical basis for the six months ended June 30, 1997 and 1996, as of June
30, 1997 and, years ended December 31, 1996, 1995, 1994, 1993 and 1992 and as of
December 31, 1996, 1995, 1994, 1993 and 1992 and on a pro forma basis for the
six months ended June 30, 1997 and June 30, 1996, as of June 30, 1997 and, years
ended December 31, 1996, 1995, 1994, 1993 and 1992 and as of December 31, 1996,
1995, 1994, 1993 and 1992.
 
     The pro forma information includes consolidated BancGroup and subsidiaries
and consolidated Great Southern, First Commerce, First Independence, Dadeland,
South Florida, United American, ASB, and First Central. The pro forma balance
sheet data gives effect to the combinations as if they had occurred on December
31, 1996 and the pro forma operating data gives effect to the combinations as if
they had occurred at the beginning of the earliest period presented. Note that
for the purchase method combinations, Article 11 of the Regulation S-X requires
pro forma statements be presented for only the most recent fiscal year and
interim period. Accordingly, the pro forma information as of and for the six
months ended June 30, 1997 and the year ended December 31, 1996 is included for
Dadeland, ASB and First Commerce.
 
     The following selected financial information should be read in conjunction
with the discussion set forth in "Management's Discussion and Analysis of
Financial Condition and Results of Operations," and all of the financial
statements included elsewhere in this Prospectus and incorporated by reference.
The pro forma information provided below may not be indicative of future
results.
 
<TABLE>
<CAPTION>
                                                                SIX MONTHS ENDED JUNE 30,
                                                     ------------------------------------------------
                                                     BANCGROUP   BANCGROUP     BANCGROUP   BANCGROUP
                                                     PRO FORMA   HISTORICAL    PRO FORMA   HISTORICAL
                                                       1997         1997         1996         1996
                                                     ---------   ----------    ---------   ----------
<S>                                                  <C>         <C>           <C>         <C>
STATEMENT OF INCOME
Interest income....................................  $274,078     $231,674     $219,205     $196,099
Interest expense...................................   134,217      117,445      107,428       98,782
                                                     --------     --------     --------     --------
Net interest income................................   139,861      114,229      111,777       97,317
Provision for loan losses..........................     9,672        6,190        4,241        3,623
                                                     --------     --------     --------     --------
Net interest income after provision for loan
  losses...........................................   130,189      108,039      107,536       93,694
Noninterest income.................................    44,734       39,627       38,586       35,923
Noninterest expense................................   114,172       90,051       93,805       82,986
                                                     --------     --------     --------     --------
Income before income taxes.........................    60,751       57,615       52,317       46,631
Applicable income taxes............................    22,880       21,286       18,380       16,434
                                                     --------     --------     --------     --------
Net income.........................................  $ 37,871     $ 36,329     $ 33,937     $ 30,197
                                                     ========     ========     ========     ========
EARNINGS PER SHARE
Net income:
  Primary..........................................  $   0.78     $   0.88     $   0.76     $   0.78
  Fully-diluted....................................  $   0.77     $   0.87     $   0.75     $   0.77
Average shares outstanding
  Primary..........................................    48,834       41,231       44,766       38,950
  Fully-diluted....................................    49,421       41,798       45,441       39,624
Cash dividends:
  Common...........................................  $   0.30     $   0.30     $  0.270     $  0.270
</TABLE>
 
                                       56
<PAGE>   66
<TABLE>
<CAPTION>
                                               YEAR ENDED DECEMBER 31,                    YEAR ENDED DECEMBER 31,
                              ---------------------------------------------------------   -----------------------
                              BANCGROUP   BANCGROUP   BANCGROUP   BANCGROUP   BANCGROUP   BANCGROUP    BANCGROUP
                              PRO FORMA   PRO FORMA   PRO FORMA   PRO FORMA   PRO FORMA   HISTORICAL   HISTORICAL
                                1996        1995        1994        1993        1992        1996*        1995*
                              ---------   ---------   ---------   ---------   ---------   ----------   ----------
<S>                           <C>         <C>         <C>         <C>         <C>         <C>          <C>
STATEMENT OF INCOME
Interest Income.............  $483,086    $383,914    $287,920    $236,084    $226,057     $406,838     $341,826
Interest Expense............   235,551     186,957     116,875      92,813     100,932      205,843      170,483
                              --------    --------    --------    --------    --------     --------     --------
Net interest income.........   247,535     196,957     171,045     143,271     125,125      200,995      171,343
Provision for possible loan
  losses....................    14,862      10,248       9,246      15,234      18,207       12,545        8,986
                              --------    --------    --------    --------    --------     --------     --------
Net interest income after
  provision for loan
  losses....................   232,673     186,709     161,799     128,037     106,918      188,450      162,357
Noninterest income..........    81,663      64,748      57,671      55,649      50,217       72,382       60,527
Noninterest expense.........   219,418     172,147     161,581     144,335     129,476      178,851      150,654
SAIF special
  assessment(1).............     4,465                                                        4,465
                              --------    --------    --------    --------    --------     --------     --------
Income before income
  taxes.....................    90,453      79,310      57,889      39,351      27,659       77,516       72,230
Applicable income taxes.....    32,655      28,202      19,091      12,265       7,793       27,303       25,765
                              --------    --------    --------    --------    --------     --------     --------
Income before extraordinary
  items.....................    57,798      51,108      38,798      27,086      19,866       50,213       46,465
Extraordinary items.........                                          (396)
Cumulative effect of change
  in accounting.............                                         3,933
                              --------    --------    --------    --------    --------     --------     --------
Net income..................  $ 57,798    $ 51,108    $ 38,798    $ 30,623    $ 19,866     $ 50,213     $ 46,465
                              ========    ========    ========    ========    ========     ========     ========
EARNINGS PER SHARE
Income before extraordinary
  items:
  Primary**.................  $   1.23    $   1.17    $   0.96    $   0.73    $   0.61     $   1.26     $   1.23
  Fully Diluted**...........      1.21        1.15        0.95        0.73        0.61         1.25         1.19
Net Income:
  Primary**.................      1.23        1.17        0.96        0.82        0.61         1.26         1.23
  Fully Diluted**...........      1.21        1.15        0.95        0.82        0.61     $   1.25     $   1.19
Average shares outstanding
  Primary**.................    47,112      43,507      40,625      37,194      32,361       39,764       37,912
  Fully Diluted**...........    48,014      45,452      42,101      39,380      35,025       40,623       39,796
Cash dividends:
  Common**..................  $  0.540    $  0.338                                         $  0.540     $  0.338
  Class A**.................                 0.113    $  0.040    $  0.355    $  0.335                     0.113
  Class B**.................                 0.063       0.020       0.155       0.135                     0.063
 
<CAPTION>
                                    YEAR ENDED DECEMBER 31,
                              ------------------------------------
                              BANCGROUP    BANCGROUP    BANCGROUP
                              HISTORICAL   HISTORICAL   HISTORICAL
                                1994*        1993*        1992*
                              ----------   ----------   ----------
<S>                           <C>          <C>          <C>
STATEMENT OF INCOME
Interest Income.............   $255,758     $204,322     $192,526
Interest Expense............    105,797       81,008       86,283
                               --------     --------     --------
Net interest income.........    149,961      123,314      106,243
Provision for possible loan
  losses....................      8,254       11,767       14,625
                               --------     --------     --------
Net interest income after
  provision for loan
  losses....................    141,707      111,547       91,618
Noninterest income..........     54,149       50,990       46,226
Noninterest expense.........    144,119      125,901      112,340
SAIF special
  assessment(1).............
                               --------     --------     --------
Income before income
  taxes.....................     51,737       36,636       25,504
Applicable income taxes.....     17,243       11,249        6,960
                               --------     --------     --------
Income before extraordinary
  items.....................     34,494       25,387       18,544
Extraordinary items.........                    (396)
Cumulative effect of change
  in accounting.............                   3,890
                               --------     --------     --------
Net income..................   $ 34,494     $ 28,881     $ 18,544
                               ========     ========     ========
EARNINGS PER SHARE
Income before extraordinary
  items:
  Primary**.................   $   0.96     $   0.81     $   0.67
  Fully Diluted**...........       0.95         0.81         0.67
Net Income:
  Primary**.................       0.96         0.92         0.67
  Fully Diluted**...........   $   0.95     $   0.91     $   0.67
Average shares outstanding
  Primary**.................     35,907       31,272       27,785
  Fully Diluted**...........     37,383       33,458       30,407
Cash dividends:
  Common**..................
  Class A**.................   $  0.040     $  0.355     $  0.335
  Class B**.................      0.020        0.155        0.135
</TABLE>
 
- ---------------
 
  * Restated to give retroactive effect to the April 22, 1997
    pooling-of-interest business combination with Fort Brooke Bancorporation.
 ** Restated to reflect the impact of a two-for-one stock split in the form of a
    100% stock dividend paid February 11, 1997.
(1) Legislation approving a one-time special assessment to recapitalize the
    Savings Association Insurance Fund ("SAIF") resulted in $4,465,000 in
    expense before income taxes and $2,874,000 net of applicable income taxes in
    1996.
 
                                       57
<PAGE>   67
 
<TABLE>
<CAPTION>
                                  JUNE 30,                                    DECEMBER 31,
                           -----------------------   --------------------------------------------------------------
                           BANCGROUP    BANCGROUP    BANCGROUP    BANCGROUP    BANCGROUP    BANCGROUP    BANCGROUP
                           PRO FORMA    HISTORICAL   HISTORICAL   HISTORICAL   HISTORICAL   HISTORICAL   HISTORICAL
                              1997         1997        1996*        1995*        1994*        1993*        1992*
                           ----------   ----------   ----------   ----------   ----------   ----------   ----------
<S>                        <C>          <C>          <C>          <C>          <C>          <C>          <C>
STATEMENT OF CONDITION
  DATA
At period end:
Total assets.............  $7,210,542   $6,100,616   $5,672,537   $4,960,165   $3,865,936   $3,728,270   $2,658,833
  Loans, net of unearned
    income...............   5,317,431    4,523,729    4,215,802    3,645,727    2,736,041    2,289,233    1,657,604
  Mortgage loans held for
    sale.................     165,476      165,476      157,966      112,203       61,556      368,515      150,835
  Deposits...............   5,707,328    4,747,342    4,299,821    3,869,012    3,067,500    2,990,190    2,251,299
  Long-term debt.........     103,880       91,955       39,092       47,688       86,662       57,397       22,979
  Shareholders' equity...     520,684      431,368      402,708      352,731      275,319      256,866      165,142
Average daily balances
  Total assets...........   7,045,421    5,956,312    5,286,587    4,373,227    3,708,350    3,015,787    2,592,966
  Interest-earning
    assets...............   6,464,624    5,462,405    4,835,713    3,985,649    3,349,026    2,681,428    2,294,670
  Loans, net of unearned
    income...............   5,245,494    4,479,967    3,931,084    3,123,407    2,477,768    1,813,569    1,615,713
  Mortgage loans held for
    sale.................     127,862      127,862      135,135       98,785      135,046      248,502      121,820
  Deposits...............   4,712,418    3,913,525    4,032,610    3,420,881    2,994,868    2,407,015    2,181,233
  Shareholders' equity...     519,047      424,886      383,401      308,532      269,353      200,217      159,785
Book value per share**...  $    10.84   $    10.54   $    10.29   $     9.43   $     7.93   $     7.69   $     6.34
Tangible book value per
  share**................  $     9.18   $     9.59   $     9.51   $     8.62   $     7.35   $     7.18   $     6.06
SELECTED RATIOS
Income before
  extraordinary items and
  the cumulative effect
  of a change in
  accounting for income
  taxes to:
    Average assets.......        1.08%        1.23%        0.95%        1.06%        0.93%        0.84%        0.72%
    Average stockholders'
      equity.............       14.59        17.24        13.09        15.06        12.81        12.68        11.61
Net income to:
    Average assets.......        1.08         1.23         0.95         1.06         0.93         0.96         0.72
    Average stockholders'
      equity.............       14.59        17.24        13.09        15.06        12.81        14.42        11.61
Efficiency ratio(1)......       65.65        58.09        64.94        64.39        69.83        71.96        73.16
Dividend payout..........       32.29        33.66        42.86        36.59        41.67        38.59        50.00
Average equity to average
  assets.................        7.37         7.13         7.25         7.06         7.26         6.64         6.16
Allowance for possible
  loan losses to total
  loans (Net of unearned
  income)................        1.29%        1.28%        1.27%        1.29%        1.55%        1.61%        1.50%
</TABLE>
 
- ---------------
 
  * Restated to give retroactive effect to the April 22, 1997
    pooling-of-interests business combinations with Fort Brooke Bancorporation.
 ** Restated to reflect the impact of a two-for-one stock split in the form of a
    100% stock dividend paid February 11, 1997.
(1) Legislation approving a one-time special assessment to recapitalize the
    Savings Association Insurance Fund ("SAIF") resulted in $4,465,000 in
    expense before income taxes and $2,874,000 net of applicable income taxes in
    1996.
 
                                       58
<PAGE>   68
 
                       UNITED AMERICA HOLDING CORPORATION
 
                            SELECTED FINANCIAL DATA
 
<TABLE>
<CAPTION>
                                                   AT AND FOR THE SIX
                                                      MONTHS ENDED                     AT AND FOR THE YEAR ENDED
                                                  ---------------------   ----------------------------------------------------
                                                   6/30/97     6/30/96      1996        1995        1994      1993      1992
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
<S>                                               <C>         <C>         <C>         <C>         <C>        <C>       <C>
                                                                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
At Period End:
  Cash and cash equivalents.....................  $  17,903   $  13,207   $  19,475   $   8,721   $ 14,820   $11,315   $11,351
  Investment securities.........................     30,572      28,853      23,044      24,660     13,045     8,962     8,482
  Loans, net....................................    177,847     126,417     149,615     111,378     83,320    56,173    64,507
  Other assets..................................     14,653      12,329      12,747       9,113      6,651    12,613     9,775
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Total assets............................  $ 240,975   $ 180,806   $ 204,881   $ 153,872   $117,836   $89,063   $94,115
                                                  =========   =========   =========   =========   ========   =======   =======
  Deposits......................................  $ 209,912   $ 158,403   $ 176,416   $ 134,357   $107,362   $80,605   $86,168
  Other liabilities.............................     11,574       7,555      11,842       4,825      4,237     2,863     4,015
  Shareholders' equity..........................     19,489      14,848      16,623      14,690      6,237     5,598     3,932
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Total liabilities and shareholders'
          equity................................  $ 240,975   $ 180,806   $ 204,881   $ 153,872   $117,836   $89,063   $94,115
                                                  =========   =========   =========   =========   ========   =======   =======
For the Period:
  Total interest income.........................  $   9,112   $   6,711   $  14,623   $  11,764   $  7,401   $ 6,331   $ 7,122
  Total interest expense........................      3,661       2,546       5,513       4,558      2,767     2,777     3,471
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Net interest income.....................      5,451       4,165       9,110       7,206      4,634     3,554     3,651
  Provision for loan............................        303         186         396         615        419     2,516     1,462
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Net interest income after provision for
          loan losses...........................      5,148       3,979       8,714       6,591      4,215     1,038     2,189
  Noninterest income............................      1,130         787       1,845       1,273      1,077     1,011       823
  Noninterest expense...........................      4,355       3,074       6,466       5,477      4,484     3,759     3,057
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Income (loss) before income taxes.......      1,923       1,692       4,093       2,387        808    (1,710)      (45)
  Income taxes..................................        763         664       1,609         668         17         0         0
                                                  ---------   ---------   ---------   ---------   --------   -------   -------
        Net Income (loss).......................  $   1,160   $   1,028   $   2,484   $   1,719   $    791   $(1,710)  $   (45)
                                                  =========   =========   =========   =========   ========   =======   =======
  Net income (loss) per share...................  $     .72   $     .69   $    1.66   $    1.24   $    .94   $ (2.79)  $  (.09)
                                                  =========   =========   =========   =========   ========   =======   =======
  Weighted average number of shares
    outstanding.................................  1,609,910   1,498,333   1,500,021   1,389,508    840,800   613,333   500,000
                                                  =========   =========   =========   =========   ========   =======   =======
Actual shares outstanding at end of year........  1,720,100   1,500,000   1,520,500   1,500,000    840,800   840,800   500,000
                                                  =========   =========   =========   =========   ========   =======   =======
Book value per share............................  $   11.33   $    9.90   $   10.93   $    9.79   $   7.42   $  6.66   $  7.86
                                                  =========   =========   =========   =========   ========   =======   =======
Ratios and Other Data:
  Return on average assets......................       0.52%       0.62%       1.40%       1.25%      0.80%    -1.89%    -0.05%
  Return on average equity......................       6.81%       7.09%      16.38%      14.60%     13.39%   -31.75%    -1.11%
  Average equity to average earning assets......       8.61%       9.94%       9.61%       9.41%      6.97%     7.21%     5.20%
  Net yield on average earning assets...........       9.28%       9.25%       9.26%       9.40%      8.73%     8.48%     9.13%
  Average earning assets to average
    interest-bearing liabilities................       1.24        1.24        1.25        1.24       1.17      1.10      1.13
  Noninterest expense to average assets.........       1.97%       1.86%       3.63%       3.98%      4.55%     4.16%     3.42%
  Nonperforming assets as percent of total
    assets......................................       0.87%       0.88%       0.53%       0.77%      1.73%    15.77%     8.10%
  Allowance for loan losses to total loans......       1.51%       1.51%       1.55%       1.76%      1.75%     1.51%     3.56%
</TABLE>
 
                                       59
<PAGE>   69
 
                      UNITED AMERICAN HOLDING CORPORATION
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
GENERAL
 
     United American's results of operations are primarily dependent upon the
results of operations of the Bank. The Bank conducts commercial banking business
consisting of attracting deposits from the general public and applying those
funds to the origination of commercial, consumer and real estate loans
(including commercial loans collateralized by real estate). The Bank's
profitability depends primarily on net interest income, which is the excess of
interest income generated from interest-earning assets (i.e., loans, investments
and federal funds sold) over interest expense incurred on interest-bearing
liabilities (i.e., customer deposits and borrowed funds). Net interest income is
affected by the relative amounts of interest-earning assets and interest-bearing
liabilities, and the interest rate earned and paid on these balances. Net
interest income is dependent upon The Bank's interest-rate spread which is the
excess of average yield earned on its interest-earning assets over the average
rate paid on its interest-bearing liabilities. When interest-earning assets
approximate or exceed interest-bearing liabilities, any positive interest rate
spread will generate net interest income. The interest-rate spread is impacted
by interest rates and the amounts of deposits and loans. Additionally, the
Bank's profitability is affected by such factors as the level of non-interest
income and expenses, the provision for credit losses, and the effective tax
rate. Non-interest income consists primarily of service fees on deposit accounts
and income from the sale of loans and investment securities. Non-interest
expense consists primarily of compensation and employee benefits, occupancy and
equipment expenses, professional fees, data processing costs, deposit insurance
premiums paid to the FDIC, and other operating expenses.
 
     Management's discussion and analysis of earnings and related financial data
are presented herein to assist investors in understanding the financial
condition of United American at, and the results of operations of United
American for the six months ended June 30, 1997 and 1996, and the years ended,
December 31, 1996, 1995 and 1994. This discussion should be read in conjunction
with the consolidated financial statements and related footnotes of United
American presented elsewhere herein.
 
LIQUIDITY
 
     Liquidity management involves the ability to meet the cash flow
requirements of customers who may be depositors wanting to withdraw their funds
or borrowers needing assurance that sufficient funds will be available to meet
their credit needs. In the ordinary course of business, the Bank's cash flows
are generated from interest and fee income, as well as from loan repayments and
the maturity of investment securities held-to-maturity. In addition to cash and
due from banks, the Bank considers all securities available-for-sale and federal
funds sold as primary sources of asset liquidity. Many factors affect the
ability to accomplish these liquidity objectives successfully, including the
economic environment, and the asset/liability mix within the balance sheet, as
well as the Bank's reputation in the community. At December 31, 1996 and June
30, 1997, the Bank had commitments to originate loans totaling $43.3 million and
$38.8 million, respectively. In addition, scheduled maturities of certificates
of deposit during the year following December 31, 1996 and the 12 months
following June 30, 1997 totalled $66.3 million and $90.4 million, respectively.
Management believes that the Bank has adequate resources to fund all of its
commitments, that substantially all of its existing commitments will be funded
within 12 months and, if so desired, that the Bank can adjust the rates and
terms on certificates of deposit and other deposit accounts to retain deposits
in a changing interest rate environment.
 
     A state-chartered commercial bank is required to maintain a liquidity
reserve of at least 15% of its transaction deposit accounts and 8% of its
non-transaction deposit accounts. The liquidity reserve may consist of cash on
hand, cash on demand deposit with other correspondent banks, and other
investments and short-term marketable securities as determined by the rules of
the Florida Department, such as federal funds sold
 
                                       60
<PAGE>   70
 
and United States securities or securities guaranteed by the United States. As
of December 31, 1996 and June 30, 1997, the Bank's liquidity ratio was 20.47%
and 18.89%, respectively.
 
CAPITAL RESOURCES
 
     United American's total stockholders' equity was $16.6 million and $14.7
million as of December 31, 1996 and 1995, respectively, which represents an
increase of $1.9 million. This increase was the result of 1996's net income of
$2.5 million, along with $255,000 resulting from sale of stock pursuant to the
exercise of stock purchase warrants issued in 1995 and the sale of treasury
stock, offset by payment of dividends in the amount of $750,000 and a $57,000
change in the unrealized securities losses at December 31, 1996 from December
31, 1995. From December 31, 1996 to June 30, 1997, United American's total
stockholders' equity increased from $16.6 million to $19.5 million, an increase
of $2.9 million. This increase was the result of net income for the first six
months of 1997 of $1.2 million, $2.0 million resulting from the sale of stock
pursuant to the exercise of stock purchase warrants issued in 1995, an increase
in the carrying value of securities available for sale of $17,000 and additional
paid in capital of $520,000 resulting from entries related to the recording of
stock based compensation in connection with options granted to directors and
officers during the six month period, offset by payment of dividends of $760,000
and unearned compensation of $69,000 (related to such stock based compensation).
United American's total stockholders' equity was 8.11%, 9.55% and 8.1% of total
assets as of December 31, 1996, December 31, 1995 and June 30, 1997,
respectively.
 
     The federal banking regulatory authorities have adopted certain "prompt
corrective action" rules with respect to depository institutions. The rules
establish five capital tiers: "well capitalized," "adequately capitalized,"
"undercapitalized," "significantly undercapitalized," and "critically
undercapitalized." The various federal banking regulatory agencies have adopted
regulations to implement the capital rules by, among other things, defining the
relevant capital measures for the five capital categories. An institution is
deemed to be "well capitalized" if it has a total risk-based capital ratio of
10% or greater, a Tier 1 risk-based capital ratio of 6% or greater, and a Tier 1
leverage ratio of 5% or greater and is not subject to a regulatory order,
agreement, or directive to meet and maintain a specific capital level. At
December 31, 1996 and June 30, 1997, the Bank met the capital ratios of a "well
capitalized" financial institution with a total risk-based capital ratio of
10.03% and 10.07%, respectively, a Tier 1 risk-based capital ratio of 8.78% and
8.80%, respectively, and a Tier 1 leverage ratio of 7.53% and 7.38%,
respectively. Depository institutions which fall below the "adequately
capitalized" category generally are prohibited from making any capital
distribution, are subject to growth limitations, and are required to submit a
capital restoration plan. There are a number of requirements and restrictions
that may be imposed on institutions treated as "significantly undercapitalized"
and, if the institution is "critically undercapitalized," the banking regulatory
agencies have the right to appoint a receiver or conservator.
 
                                       61
<PAGE>   71
 
     In accordance with risk capital guidelines issued by the FDIC, the Bank is
required to maintain a minimum standard of total capital to risk-weighted assets
of 8%. Additionally, the FDIC requires banks to maintain a minimum
leverage-capital ratio of Tier 1 capital (as defined) to total assets. The
leverage-capital ratio ranges from 3% to 5% based on the bank's rating under the
regulatory rating system. The required leverage-capital ratio for the Bank at
December 31, 1996 was 4%. The following table summarizes the regulatory capital
levels and ratios for the Bank:
 
<TABLE>
<CAPTION>
                                                              ACTUAL     REGULATORY
                                                              RATIOS     REQUIREMENT
                                                              -------    -----------
<S>                                                           <C>        <C>
At June 30, 1997:
  Total capital to risk-weighted assets.....................  10.07%       8.00%
  Tier 1 capital to risk-weighted assets....................    8.80        4.00
  Tier 1 capital to total assets -- leverage ratio..........    7.38        4.00
At December 31, 1996:
  Total capital to risk-weighted assets.....................   10.03        8.00
  Tier 1 capital to risk-weighted assets....................    8.78        4.00
  Tier 1 capital to total assets -- leverage ratio..........    7.53        4.00
At December 31, 1995:
  Total capital to risk-weighted assets.....................   10.95        8.00
  Tier 1 capital to risk-weighted assets....................    9.70        4.00
  Tier 1 capital to total assets -- leverage ratio..........    8.06        4.00
At December 31, 1994:
  Total capital to risk-weighted assets.....................    8.12        8.00
  Tier 1 capital to risk-weighted assets....................    6.84        4.00
  Tier 1 capital to total assets -- leverage ratio..........    6.01        4.00
</TABLE>
 
RESULTS OF OPERATIONS
 
  General
 
     United American's net income was $1,160,000, or $.72 per share, for the six
months ended June 30, 1997, as compared to $1,028,000, or $.69 per share, for
the six months ended June 30, 1996, an increase of $132,000 or 12.8%. United
American's net income for the year ended December 31, 1996 was $2,485,000, as
compared to net income for the year ended December 31, 1995 of $1,719,000, an
increase of $766,000, or 44.6%.
 
                                       62
<PAGE>   72
 
     The following table presents information regarding (i) the total dollar
amount of United American's interest income from interest-earning assets and the
resultant average yield; (ii) the total dollar amount of interest expense on
interest-bearing liabilities and the resultant average cost; (iii) net interest
income; (iv) net interest spread; and (v) net interest margin, for the periods
indicated:
 
<TABLE>
<CAPTION>
                                                           SIX MONTHS ENDED JUNE 30,
                                          -----------------------------------------------------------
                                                      1997                           1996
                                          ----------------------------   ----------------------------
                                          AVERAGE               YIELD/   AVERAGE               YIELD/
                                          BALANCE    INTEREST    RATE    BALANCE    INTEREST    RATE
                                          --------   --------   ------   --------   --------   ------
<S>                                       <C>        <C>        <C>      <C>        <C>        <C>
ASSETS:
Interest-earning assets:
  Loans(1)..............................  $164,076    $8,164    10.03%   $115,092    $5,852    10.23%
  Investments...........................    25,041       711     5.73      24,711       703     5.72
  Federal funds sold....................     8,841       237     5.41       6,019       156     5.21
                                          --------    ------    -----    --------    ------    -----
  Total earning assets..................   197,958     9,112     9.28     145,822     6,711     9.25
                                                      ------    -----                ------    -----
Non-earning assets......................    23,559                         19,349
                                          --------                       --------
          Total assets..................  $221,517                       $165,171
                                          ========                       ========
LIABILITIES AND STOCKHOLDERS' EQUITY:
  Savings and NOW accounts..............  $ 16,726    $  179     2.16%   $ 13,592    $  140     2.07%
  Money market deposits.................    40,671       600     2.97      33,591       439     2.63
  Certificates of deposit...............    92,423     2,625     5.73      68,304     1,917     5.64
  Borrowings............................     9,600       257     5.40       2,131        50     4.72
                                          --------    ------    -----    --------    ------    -----
          Total interest-bearing
            liabilities.................   159,420     3,661     4.63     117,618     2,546     4.35
                                                      ------    -----                ------    -----
Non-interest bearing liabilities........    45,058                         33,059
Shareholders' equity....................    17,039                         14,494
                                          --------                       --------
          Total liabilities and
            shareholders' equity........  $221,517                       $165,171
                                          ========                       ========
Spread and Interest Differential:
Net interest income.....................              $5,451                         $4,165
                                                      ======                         ======
Interest-rate spread(2).................                         4.65%                          4.90%
                                                                =====                          =====
Net interest margin(3)..................                         5.51%                          5.71%
                                                                =====                          =====
Ratio of average earning assets to
  average interest-bearing
  liabilities...........................      1.24                           1.24
                                          ========                       ========
</TABLE>
 
                                       63
<PAGE>   73
 
<TABLE>
<CAPTION>
                                                              YEAR ENDED DECEMBER 31,
                             ------------------------------------------------------------------------------------------
                                         1996                           1995                           1994
                             ----------------------------   ----------------------------   ----------------------------
                             AVERAGE               YIELD/   AVERAGE               YIELD/   AVERAGE               YIELD/
                             BALANCE    INTEREST    RATE    BALANCE    INTEREST    RATE    BALANCE    INTEREST    RATE
                             --------   --------   ------   --------   --------   ------   --------   --------   ------
<S>                          <C>        <C>        <C>      <C>        <C>        <C>      <C>        <C>        <C>
ASSETS:
Interest-earning assets:
  Loans(1).................  $126,218   $12,846    10.18%   $ 94,338   $ 9,954    10.55%   $67,987     $6,707     9.87%
  Investments..............    25,844     1,475     5.71      20,040     1,170     5.84     11,255        468     4.16
  Federal funds sold.......     5,801       302     5.21      10,720       640     5.97      5,507        226     4.10
                             --------   -------    -----    --------   -------    -----    -------     ------     ----
  Total earning assets.....   157,863    14,623     9.26     125,098    11,764     9.40     84,749      7,401     8.73
                                        -------    -----               -------    -----                ------     ----
Non-earning assets.........    20,189                         12,388                        13,868
                             --------                       --------                       -------
         Total assets......  $178,052                       $137,486                       $98,617
                             ========                       ========                       =======
LIABILITIES AND
  STOCKHOLDERS' EQUITY:
  Savings and NOW
    accounts...............  $ 14,310   $   304     2.12%   $ 11,607   $   273     2.35%   $ 9,437     $  188     1.99%
  Money market deposits....    36,156       980     2.71      30,548       839     2.75     24,652        602     2.44
  Certificates of
    deposit................    71,244     3,999     5.61      56,311     3,285     5.83     35,003      1,740     4.97
  Borrowings...............     4,528       230     5.08       2,461       161     6.54      3,114        237     7.61
                             --------   -------    -----    --------   -------    -----    -------     ------     ----
         Total
           interest-bearing
           liabilities.....   126,238     5,513     4.37     100,927     4,558     4.52     72,206      2,767     3.83
                                        -------    -----               -------    -----                ------     ----
Non-interest bearing
  liabilities..............    36,641                         24,784                        20,503
Shareholders' equity.......    15,173                         11,775                         5,908
                             --------                       --------                       -------
         Total liabilities
           and
           shareholders'
           equity..........  $178,052                       $137,486                       $98,617
                             ========                       ========                       =======
Spread and Interest
  Differential:
Net interest income........             $ 9,110                        $ 7,206                         $4,634
                                        =======                        =======                         ======
Interest-rate spread(2)....                         4.89%                          4.88%                          4.90%
                                                   =====                          =====                           ====
Net interest margin(3).....                         5.77%                          5.76%                          5.47%
                                                   =====                          =====                           ====
Ratio of average earning
  assets to average
  interest-bearing
  liabilities..............      1.25                           1.24                          1.17
                             ========                       ========                       =======
</TABLE>
 
- ---------------
 
(1) Includes loans on non-accrual status.
(2) Interest-rate spread represents the excess of the average yield on
    interest-earning assets over the average cost of interest-bearing
    liabilities.
(3) Net interest margin represents net interest income (annualized) divided by
    average interest-earning assets.
 
  Net interest income
 
     Net interest income, which constitutes the principal source of income for
United American, represents the excess of interest income on interest-earning
assets over interest expense on interest-bearing liabilities. The principal
interest-earning assets are federal funds sold, investment securities and loans
receivable. Interest-bearing liabilities primarily consist of time deposits,
interest-bearing checking accounts ("NOW accounts"), savings deposits and money
market accounts. Funds attracted by these interest-bearing liabilities are
invested in interest-earning assets. Accordingly, net interest income depends
upon the volume of average interest-earning assets and average interest-bearing
liabilities and the interest rates earned or paid on them.
 
     The following table sets forth certain information regarding changes in
United American's interest income and interest expense during the year ended
December 31, 1996 as compared to the year ended December 31, 1995, and for the
six months ended June 30, 1997 as compared to the six months ended June 30,
1996. For each category of interest-earning assets and interest-bearing
liabilities, information is provided on changes attributable to (1) changes in
interest rate (change in rate multiplied by prior volume),
 
                                       64
<PAGE>   74
 
(2) changes in the volume (change in volume multiplied by prior rate) and (3)
changes in rate-volume (change in rate multiplied by change in volume).
 
<TABLE>
<CAPTION>
                                               SIX MONTHS ENDED JUNE 30,           YEAR ENDED DECEMBER 31,
                                                     1997 VS. 1996                      1996 VS. 1995
                                            --------------------------------   --------------------------------
                                               INCREASE (DECREASE) DUE TO         INCREASE (DECREASE) DUE TO
                                            --------------------------------   --------------------------------
                                                             RATE/                              RATE/
                                            RATE    VOLUME   VOLUME   TOTAL    RATE    VOLUME   VOLUME   TOTAL
                                            -----   ------   ------   ------   -----   ------   ------   ------
                                                                  (DOLLARS IN THOUSANDS)
<S>                                         <C>     <C>      <C>      <C>      <C>     <C>      <C>      <C>
Interest-earning assets:
  Loans...................................  $(114)  $2,485    $(59)   $2,312   $(349)  $3,363   $(122)   $2,892
  Investments.............................      1        9      (3)        7     (26)     339      (8)      305
  Federal funds sold......................      6       73       3        82     (81)    (294)     37      (338)
                                            -----   ------    ----    ------   -----   ------   -----    ------
         Total interest-earning assets....   (107)   2,567     (59)    2,401    (456)   3,408     (93)    2,859
                                            -----   ------    ----    ------   -----   ------   -----    ------
Interest-bearing liabilities:
  Savings and NOW accounts................      6       32       0        38     (27)      64      (6)       31
  Money market deposits...................     57       92      12       161     (12)     154      (1)      141
  Certificates of deposit.................     30      675       3       708    (124)     871     (33)      714
  Borrowings..............................      7      175      25       207     (36)     135     (30)       69
                                            -----   ------    ----    ------   -----   ------   -----    ------
         Total interest-bearing
           liabilities....................    100      974      40     1,114    (199)   1,224     (70)      955
                                            -----   ------    ----    ------   -----   ------   -----    ------
Net change in net-interest income.........  $(207)  $1,593    $(99)   $1,287   $(257)  $2,184   $ (23)   $1,904
                                            =====   ======    ====    ======   =====   ======   =====    ======
</TABLE>
 
     United American's net interest income was $5.5 million for the six months
ended June 30, 1997 compared to $4.2 million for the six months ended June 30,
1996, an increase of $1.3 million or 30.9%. The increase resulted from an
increase in earning assets of $52.1 million or 35.8%. Net interest income was
$9.1 million for the year ended December 31, 1996 compared with $7.2 million for
the year ended December 31, 1995, an increase of $1.9 or 26.4%. During the six
month period ending June 30, 1997, interest income on investments and federal
funds sold increased by $90,000 over the six month period ending June 30, 1996.
This increase was attributable almost entirely to an increase of $3.2 million in
average balances of investments and federal funds sold from $30.7 million for
the six months ending June 30, 1996 to $33.9 million for the period ending June
30, 1997. Interest income on investments and federal funds sold decreased
$33,000 from the year ended December 31, 1995 to the year ended December 31,
1996. Most of this decrease was attributable to a decrease in the yield of the
investment portfolio as management intentionally shortened the maturity of the
investments in anticipation of possible changes in interest rates. During the
six months ending June 30, 1997, interest expense on interest bearing
liabilities increased by $1.1 million over the six month period ending June 30,
1996. Most of this increase was attributable to an increase of $41.8 million in
average interest bearing liabilities from $117.6 million for the six months
ending June 30, 1996 to $159.4 million for the six months ended June 30, 1997.
Interest expense on interest bearing liabilities increased $.9 million from $4.6
million for the year ended December 31, 1995 to $5.5 million for the year ended
December 31, 1996. This increase was entirely attributable to an increase in
average balances of interest bearing liabilities from $100.9 million for the
year ended December 31, 1995 to $126.2 million for the year ended December 31,
1996. During the same period, average rates paid on interest bearing liabilities
actually decreased 15 basis points, due in large part to a reduction in the
average rate paid on certificates of deposit by 15 basis points. The overall
result was a reduction in the net interest margin of 11 basis points to 2.75%
for the six month period ending June 30, 1997 from 2.86% for the six months
period ending June 30, 1996 and an increase of 1 basis point from 5.76% during
1995 to 5.77% during 1996.
 
  Provision for Loan Losses
 
     The provision for loan losses is charged to earnings to bring the allowance
for loan losses to a level deemed appropriate by management and is based upon
historical experience, the volume and type of lending conducted by United
American, the amounts of non-performing loans, general economic conditions,
particularly as they relate to United American's market area, and other factors
related to the collectibility of United American's loan portfolio. For the six
months ended June 30, 1997 the provision for loan losses was $303,000, as
compared to $186,000 for the six months ended June 30, 1996. This increase of
$117,000 was
 
                                       65
<PAGE>   75
 
attributable solely to increased loan production and management's desire to
maintain reserves at certain levels. For the year ended December 31, 1996, the
provision for loan losses was $396,000 as compared to $615,000 for the year
ended December 31, 1995, a decrease of $219,000. As of June 30, 1997, December
31, 1996 and December 31, 1995, the allowance for loan losses was 1.54%, 1.58%
and 1.80%, respectively, of total loans receivable, and was 275.4%, 454.2% and
369.0%, respectively, of non-performing loans.
 
  Noninterest Income
 
     Noninterest income is primarily composed of deposit service charges and
fees and mortgage origination fees. Non-interest income was $1.1 million for the
six months ended June 30, 1997 versus $.8 million for the six months ended June
30, 1996, or an increase of .3 million, or 43.6%. This increase was attributable
to service charges and NSF fees on deposit accounts resulting from a 27%
increase in demand deposits, coupled with an attempt to minimize waived service
charges. During the year ended December 31, 1996, noninterest income increased
to $1.8 million from $1.3 million during the year ended December 31, 1995, an
increase of $.5 million, or 44.9%. This increase similarly was due to
management's ongoing attempts to minimize waived service charges, coupled with
the significant growth in demand accounts from year end 1995 to year end 1996 of
approximately 44%.
 
  Noninterest Expenses
 
     During the six months ended June 30, 1997, noninterest expenses increased
to $4.4 million from $3.1 million during the six months ended June 30, 1996, or
an increase of 41.7%. During the year ended December 31, 1996, noninterest
expenses increased to $6.47 million from $5.48 million during the year ended
December 31, 1995, an increase of $1.0 million, or 18.1%. The following
narrative sets forth additional information on certain noninterest expense
categories which had significant changes.
 
     During the six months ended June 30, 1997, compensation and benefits
increased to $2.49 million from $1.61 million for the six months ended June 30,
1996, an increase of $880,000 or 54.7%. During the year ended December 31, 1996,
compensation and benefits increased to $3.38 million from $2.58 million during
the year ended December 31, 1995, an increase of $800,000 or 31.0%. These
increases were primarily due to an increase in the number of employees at the
Bank commensurate with the growth of the Bank and annual compensation and
benefit increases for employees.
 
     Occupancy and related furniture and equipment expense increased to $699,000
during the six months ended June 30, 1997 from $500,000 during the six months
ended June 30, 1996, an increase of $199,000 or 39.8%. For the year ended
December 31, 1996, occupancy and related furniture and equipment expense
decreased to $1.06 million from $1.11 million, a decrease of $50,000 or 4.5%.
The reason for the increase in occupancy related expenses from June 30, 1996 to
June 30, 1997 related to the full effect in the 1997 six month period of branch
offices opened in February and September of 1996. The reason for the decrease in
occupancy related expenses from 1996 to 1997 related to a decision by management
to purchase three facilities in January, 1996 which were previously occupied
under triple net leases. The depreciation expense of the facilities was less
than the comparable lease expense.
 
     Advertising and business development expenses increased from $259,000
during the six months ended June 30, 1996 to $292,000 during the period ended
June 30, 1997, an increase of $33,000 or 12.7%. Advertising and business
development increased to $517,000 for the year ended December 31, 1996 from
$403,000 for the year ended December 31, 1995, an increase of $114,000 or 28.3%.
United American places importance on effective advertising and business
development, and the increases for both comparative periods are in line with the
Bank having branched into two new markets in February and September, 1996, as
well as continuing to support a marketing effort for those branch offices
already in existence.
 
     FDIC and state assessments increased to $31,000 for the six months ended
June 30, 1997 from $18,000 for the period ended June 30, 1996, an increase of
$13,000 or 72.2%, due to higher FDIC rates in 1997. For the year ended December
31, 1996, FDIC and state assessments were $38,888, down $200,000 from $238,000
for the year ended December 31, 1995. The decrease for the full year ended
December 31, 1996 as compared to the full year ended December 31, 1995 was
attributable to a significant reduction in FDIC premiums due to
 
                                       66
<PAGE>   76
 
full capitalization of the insurance fund, as well as a credit received from
FDIC of $56,000 for prior overpayments.
 
  Income Tax Provision
 
     During the six months ended June 30, 1997 the income tax provision
increased to $931,000 from $664,000 for the six month period ended June 30,
1996, an increase of $267,000 or 40.2%. This increase in the tax provision is
commensurate with the increase in net income before taxes for the comparable
periods. During the years ended December 31, 1996 and 1995, United American
recorded a provision for income taxes of $1.608 million and $.668 million,
respectively, reflecting a fully effective income tax rate of 39.3% in 1996, but
an effective rate of only 28.0% in 1995. The reason for the reduced rate in 1995
was due to the utilization of approximately $1.6 million in federal and state
net operating loss carryforwards in the year ended December 31, 1995. All
available federal and state net operating loss carryforwards were utilized in
1995.
 
ASSET/LIABILITY MANAGEMENT
 
     A principal objective of the Bank's asset/liability management strategy is
to minimize its exposure to changes in interest rates by matching the maturity
and repricing horizons of interest-earning assets and interest-bearing
liabilities. This strategy is overseen in part through the direction of the
Bank's Asset and Liability Committee (the "ALCO Committee") which establishes
policies and monitors results to control interest rate sensitivity.
 
     Management evaluates interest rate risk and then formulates guidelines
regarding asset generation and repricing, funding sources and pricing, and
off-balance sheet commitments in order to maintain interest rate risk within
target levels for the appropriate level of risk which are determined by the ALCO
Committee.
 
     As a part of the Bank's interest-rate risk management policy, the ALCO
Committee examines the extent to which its assets and liabilities are
"interest-rate sensitive" and monitors the Bank's interest-rate sensitivity
"gap." An asset or liability is considered to be interest-rate sensitive if it
will reprice or mature within the time period analyzed, usually one year or
less. The interest-rate sensitivity gap is the difference between interest-
earning assets and interest-bearing liabilities scheduled to mature or reprice
within such time period. A gap is considered positive when the amount of
interest-rate sensitive assets exceeds the amount of interest-rate sensitive
liabilities. A gap is considered negative when the amount of interest-rate
sensitive liabilities exceeds interest-rate sensitive assets. During a period of
rising interest rates, a negative gap would tend to adversely affect net
interest income, while a positive gap would tend to result in an increase in net
interest income. During a period of falling interest rates, a negative gap would
tend to result in an increase in net interest income, while a positive gap would
tend to adversely affect net interest income. In addition, any premiums on
mortgage-backed securities are amortized to interest income based on the
estimated remaining life of the related securities.
 
     The ALCO Committee's policy is to maintain a cumulative one-year gap which
falls in the range of (10%) to 10% of total assets. At June 30, 1997, the Bank's
cumulative one-year gap was (3.61%) of total assets. Management attempts to
conform to this policy by managing the maturity distribution of its investment
portfolio, emphasizing originations and purchases of adjustable-interest rate
loans, and by managing the product mix and maturity of its deposit accounts.
 
     A simple interest rate "gap" analysis by itself may not be an accurate
indicator of how net interest income will be affected by changes in interest
rates. Accordingly, the ALCO Committee also evaluates how the repayment of
particular assets and liabilities is impacted by changes in interest rates.
Income associated with interest-earning assets and costs associated with
interest-bearing liabilities may not be affected uniformly by changes in
interest rates. In addition, the magnitude and duration of changes in interest
rates may have a significant impact on net interest income. For example,
although certain assets and liabilities may have similar maturities or period of
repricing, they may react in different degrees to changes in market interest
rates. Interest rates on certain types of assets and liabilities fluctuate in
advance of changes in general market interest rates, while interest rates on
other types may lag behind changes in general market rates. In addition, certain
assets, such as adjustable-interest rate mortgage loans, have features
(generally referred to as "interest
 
                                       67
<PAGE>   77
 
rate caps") which limit changes in interest rates on a short-term basis and over
the life of the asset. In the event of a change in interest rates, prepayments
(on loans and mortgage-backed securities) and early withdrawal (of deposit
accounts) levels also could deviate significantly from those assumed in
calculating the interest rate gap. The ability of many borrowers to service
their debts also may decrease in the event of an interest rate increase.
 
     Management's strategy is to maintain a relatively balanced interest-rate
risk position to protect its net interest margin from market fluctuations. To
this end, the ALCO Committee reviews, on a monthly basis, the maturity and
repricing of assets and liabilities.
 
     Management believes that the type and amount of the Bank's interest rate
sensitive liabilities may reduce the potential impact that a rise in interest
rates might have on the Bank's net interest income. The Bank seeks to maintain a
core deposit base by providing quality services to its customers without
significantly increasing its cost of funds or operating expenses. United
American also maintains a portfolio of liquid assets in order to reduce its
overall exposure to changes in market interest rates. At December 31, 1996 and
June 30, 1997, the Bank's liquidity ratios were 20.5% and 18.9%, respectively.
The Bank also maintains a "floor", or minimum rate, on certain of its floating
or prime based loans. These floors allow the Bank to continue to earn a higher
rate when the floating rate falls below the established floor rate.
 
     The following table sets forth certain information relating to The Bank's
interest-earning assets and interest-bearing liabilities at June 30, 1997 that
are estimated to mature or are scheduled to reprice within the period shown.
 
<TABLE>
<CAPTION>
                                      0 TO 30   31 TO 90   91 TO 365   ONE YEAR TO   MORE THAN
                                       DAYS       DAYS       DAYS      FIVE YEARS    FIVE YEARS    TOTAL
                                      -------   --------   ---------   -----------   ----------   --------
                                                             (DOLLARS IN THOUSANDS)
<S>                                   <C>       <C>        <C>         <C>           <C>          <C>
Earning Assets:
  Loans(1)..........................  $96,935   $ 8,415     $ 15,709     $47,420       $11,323    $179,802
  Investments (2)...................        0     9,995       14,983       5,008           319      30,305
  Federal Funds Sold................    4,850         0            0           0             0       4,850
                                      -------   -------     --------     -------       -------    --------
          Total Interest-Earning
            Assets..................  101,785    18,410       30,692      52,428        11,642     214,957
                                      -------   -------     --------     -------       -------    --------
Interest Bearing Liabilities:
  Savings and NOW accounts..........   16,217         0            0           0             0      16,217
  Money market deposits.............   44,283         0            0           0             0      44,283
  Certificates of deposit(3)........        0    20,662       69,739      15,201            43     105,645
  Borrowings........................    7,742         0            0           0             0       7,742
                                      -------   -------     --------     -------       -------    --------
          Total Interest-Bearing
            Liabilities.............   68,242    20,662       69,739      15,201            43     173,887
                                      -------   -------     --------     -------       -------    --------
Rate Sensitivity GAP................  $33,543   $(2,252)    $(39,047)    $37,227       $11,599    $ 41,070
                                      =======   =======     ========     =======       =======    ========
Cumulative Rate Sensitivity GAP.....  $33,543   $31,291     $ (7,756)    $29,471       $41,070
                                      =======   =======     ========     =======       =======
Rate Sensitivity GAP Ratio..........    15.60%    -1.05%      -18.17%      17.32%         5.40%
                                      =======   =======     ========     =======       =======
Cumulative Rate Sensitivity GAP
  Ratio.............................    15.60%    14.56%       -3.61%      13.71%        19.11%
                                      =======   =======     ========     =======       =======
Ratio of Cumulative GAP to Total
  Assets............................    14.07%    13.12%       -3.25%      12.36%        17.22%
                                      =======   =======     ========     =======       =======
</TABLE>
 
- ---------------
 
(1) In preparing the table above, adjustable-interest rate loans were included
    in the period in which the interest rates are next scheduled to adjust
    rather than in the period in which the loans mature. Fixed-interest rate
    loans were scheduled according to their contractual maturities.
(2) In preparing the table above, adjustable-interest rate investment securities
    were included in the period in which the interest rates are next scheduled
    to adjust rather than in the period in which the investment securities
    mature. Fixed-interest rate investment securities were scheduled according
    to their contractual maturities.
(3) Time deposits were scheduled according to their contractual maturities.
 
                                       68
<PAGE>   78
 
FINANCIAL CONDITION
 
  Lending Activities
 
     A significant source of United American's income is the interest earned on
its loan portfolio. The following table shows the relationship of loans to total
assets for the Bank as of the periods indicated:
 
<TABLE>
<CAPTION>
                                                                       AT DECEMBER 31,
                                                    AT JUNE 30,    -----------------------
                                                       1997          1996         1995
                                                    -----------    --------    -----------
                                                            (DOLLARS IN THOUSANDS)
<S>                                                 <C>            <C>         <C>
Total Assets......................................   $240,807      $204,881     $153,872
Total Loans, net..................................    177,847       149,615      111,378
Loans as % of Total Assets........................       73.9%         73.0%        72.4%
</TABLE>
 
     Lending activities are conducted pursuant to a written policy which has
been adopted by the Bank. Each loan officer has defined lending authority beyond
which loans, depending upon their type and size, must be reviewed and approved
by a loan committee comprised of certain officers and directors of the Bank.
 
                                       69
<PAGE>   79
 
     The composition of the Bank's loan portfolio was as follows for the periods
indicated:
 
<TABLE>
<CAPTION>
                                                                AS OF JUNE 30,
                                                ----------------------------------------------
                                                        1997                      1996
                                                --------------------      --------------------
                                                               % OF                      % OF
                                                 AMOUNT       TOTAL        AMOUNT       TOTAL
                                                --------      ------      --------      ------
                                                            (DOLLARS IN THOUSANDS)
<S>                                             <C>           <C>         <C>           <C>
Commercial....................................  $ 41,772       23.03%     $ 26,155       20.24%
Construction..................................    24,976       13.77%       11,010        8.52%
Real Estate...................................   105,088       57.95%       82,952       64.20%
Consumer and other............................     9,510        5.24%        9,099        7.04%
                                                --------      ------      --------      ------
          Total loans receivable..............   181,346      100.00%      129,216      100.00%
                                                              ======                    ======
Less:
  Unearned income and fees....................      (763)                     (544)
  Allowance for loan losses...................    (2,736)      -1.51%       (2,255)      -1.75%
                                                --------      ------      --------      ------
                                                              ------                    ------
  Loans, net..................................  $177,847                  $126,417
                                                ========                  ========
</TABLE>
 
<TABLE>
<CAPTION>
                                                             AS OF DECEMBER 31,
                       ----------------------------------------------------------------------------------------------
                             1996                1995                1994               1993               1992
                       -----------------   -----------------   ----------------   ----------------   ----------------
                                   % OF                % OF               % OF               % OF               % OF
                        AMOUNT    TOTAL     AMOUNT    TOTAL    AMOUNT    TOTAL    AMOUNT    TOTAL    AMOUNT    TOTAL
                       --------   ------   --------   ------   -------   ------   -------   ------   -------   ------
                                                           (DOLLARS IN THOUSANDS)
<S>                    <C>        <C>      <C>        <C>      <C>       <C>      <C>       <C>      <C>       <C>
Commercial...........  $ 36,634    24.01%  $ 27,132    23.84%  $19,668    23.08%  $16,685    29.03%  $21,093    31.27%
Construction.........    15,188     9.95%     9,990     8.78%    7,234     8.49%    2,220     3.86%    3,588     5.32%
Real Estate..........    91,388    59.90%    71,031    62.41%   54,260    63.66%   36,166    62.92%   38,830    57.56%
Consumer and other...     9,365     6.14%     5,662     4.97%    4,068     4.77%    2,411     4.19%    3,952     5.86%
                       --------   ------   --------   ------   -------   ------   -------   ------   -------   ------
    Total loans         152,575   100.00%   113,815   100.00%   85,230   100.00%   57,482   100.00%   67,463   100.00%
      receivable.....
                                  ======              ======             ======             ======             ======
Less:
  Unearned income and      (598)               (437)              (417)              (443)              (556)
    fees.............
  Allowance for loan     (2,362)   (1.55)%   (2,000)   (1.76)%  (1,493)   (1.75)%    (866)   (1.51)%  (2,400)   (3.56)%
    losses...........
                       --------   ------   --------   ------   -------   ------   -------   ------   -------   ------
                                  ------              ------             ------             ------             ------
  Loans, net.........  $149,615            $111,378            $83,320            $56,173            $64,507
                       ========            ========            =======            =======            =======
</TABLE>
 
                                       70
<PAGE>   80
 
     As of June 30, 1997, the maturities and interest rate sensitivities of the
Bank's loan portfolio, based on remaining scheduled principal repayments, were
as follows:
 
<TABLE>
<CAPTION>
                                                            DUE AFTER
                                                  DUE IN     ONE YEAR
                                                 ONE YEAR    THROUGH     DUE AFTER
                                                 OR LESS    FIVE YEARS   FIVE YEARS    TOTAL
                                                 --------   ----------   ----------   --------
                                                            (DOLLARS IN THOUSANDS)
<S>                                              <C>        <C>          <C>          <C>
Commercial.....................................  $24,680     $11,802      $ 5,290     $ 41,772
Construction...................................   11,171       9,141        4,664       24,976
Real Estate....................................   19,468      69,247       16,373      105,088
Consumer and other.............................    2,540       6,169          801        9,510
                                                 -------     -------      -------     --------
          Total................................  $57,859     $96,359      $27,128     $181,346
                                                 =======     =======      =======     ========
Loans with maturities over one year:
  Fixed interest rate..........................              $50,145      $13,344     $ 63,489
  Variable interest rate.......................               46,214       13,784       59,998
                                                             -------      -------     --------
          Total maturities greater than one
            year...............................              $96,359      $27,128     $123,487
                                                             =======      =======     ========
</TABLE>
 
  Asset Quality
 
     Management seeks to maintain quality assets through sound underwriting and
sound lending practices. The largest category of loans in the Bank's loan
portfolio are collateralized by commercial real estate mortgages. As of June 30,
1997 and December 31, 1996, 59.9%, and 57.9%, respectively, of the total loan
portfolio were collateralized by this type of property. The level of delinquent
loans and other real estate owned also is relevant to the credit quality of a
loan portfolio. As of June 30, 1997, total non-performing assets were $2.1
million or .87% of total assets, compared to $1.09 million or .53% of total
assets as of December 31, 1996. This increase during the period was the result
of an office/warehouse taken into other real estate and two loans amounting to
$638,000 which went into a non-accrual status. Management is in the process of
negotiating a lease/purchase on the office/warehouse and the two loans have been
paid down approximately $200,000. Management believes that in light of its
assessment of the collateral underlying both the other real estate owned and the
loans, the Bank will not incur any significant loss.
 
     The commercial real estate mortgage loans in the Bank's portfolio consist
of fixed- and adjustable-interest rate loans which were originated at prevailing
market interest rates. The Bank's policy has been to originate commercial real
estate mortgage loans predominantly in its primary market area. Commercial real
estate mortgage loans are generally made in amounts up to 75% of the appraised
value of the property securing the loan and entail significant additional risks
compared to residential mortgage loans. In making commercial real estate loans,
the Bank primarily considers the net operating income generated by the real
estate to support the debt service, the financial resources and income level and
managerial expertise of the borrower, the marketability of the collateral and
the Bank's lending experience with the borrower.
 
     Unlike residential mortgage loans, which, generally, are made on the basis
of the borrower's ability to make repayment from his employment and other
income, and which are collateralized by real property whose value tends to be
more readily ascertainable, commercial loans typically are underwritten on the
basis of the borrower's ability to make repayment from the cash flow of his
business and, generally, are collateralized by business assets, such as accounts
receivable, equipment and inventory. As a result, the availability of funds for
the repayment of commercial loans may be substantially dependent on the success
of the business itself, which is subject to adverse conditions in the economy.
Commercial loans also entail certain additional risks since they usually involve
large loan balances to single borrowers or a related group of borrowers,
resulting in a more concentrated loan portfolio. Further, the collateral
underlying the loans may depreciate over time, cannot be appraised with as much
precision as residential real estate, and may fluctuate in value based on the
success of the business.
 
     Loan concentrations are defined as amounts loaned to a number of borrowers
engaged in similar activities which would cause them to be similarly impacted by
economic or other conditions. The Bank, on a routine
 
                                       71
<PAGE>   81
 
basis, monitors these concentrations in order to consider adjustments in its
lending practices to reflect economic conditions, loan to deposit ratios, and
industry trends. Management believes as of June 30, 1997 and December 31, 1996,
that the Bank had no significant concentration of risk with any individual
counterparty to originate loans. Bank loan customers are principally
closely-held businesses and residents concentrated in the central Florida area
and as such, the debtors' ability to honor their contract is substantially
dependent upon the general economic conditions of the region. Most of the Bank's
business activity is with customers located within the Central Florida area.
 
     The Loan Committee of the Board of Directors of the Bank concentrates its
efforts and resources, and that of its senior management and lending officers,
on loan review and underwriting procedures. Internal controls include ongoing
reviews of loans made to monitor documentation and the existence and valuations
of collateral. In addition, management of the Bank has established a review
process with the objective of identifying, evaluating, and initiating necessary
corrective action for marginal loans. The goal of the loan review process is to
address classified and non-performing loans as early as possible.
 
  Classification of Assets
 
     Generally, interest on loans accrues and is credited to income based upon
the principal balance outstanding. It is management's policy to discontinue the
accrual of interest income and classify a loan on non-accrual status when in the
opinion of management, principal or interest is not likely to be paid in
accordance with the terms of the obligation or when principal or interest is
past due 90 days or more unless, in the determination of management, the
principal and interest on the loan are well collateralized and in the process of
collection. Consumer installment loans are generally charged-off after 90 days
of delinquency unless adequately collateralized and in the process of
collection. Loans are not returned to accrual status until principal and
interest payments are brought current and future payments appear reasonably
certain. Interest accrued and unpaid at the time a loan is placed on non-accrual
status is charged against interest income.
 
     Real estate acquired by the Bank as a result of foreclosure or by deed in
lieu of foreclosure is classified as other real estate owned ("OREO"). OREO
properties are recorded at the lower of cost or fair value less estimated
selling costs, and the estimated loss, if any, is charged to the allowance for
credit losses at the time it is transferred to OREO. Further write-downs in OREO
are recorded at the time management believes additional deterioration in value
has occurred and are charged to non-interest expense.
 
     Loans on non-accrual status and other real estate owned, the ratio of such
loans and real estate owned to total assets, and certain other related
information was as follows for the periods indicated:
 
<TABLE>
<CAPTION>
                                                          AT JUNE 30,     AT DECEMBER 31,
                                                        ---------------   ---------------
                                                         1997     1996     1996     1995
                                                        ------   ------   ------   ------
                                                             (DOLLARS IN THOUSANDS)
<S>                                                     <C>      <C>      <C>      <C>
Loans on non-accrual status:
  Commercial..........................................  $  737   $  300   $  339   $  334
  Construction........................................       0        0        0        0
  Real estate.........................................     250      208      104      208
  Installment.........................................       7        0                 0
                                                        ------   ------   ------   ------
          Total loans on non-accrual status...........     994      508      443      542
Accruing loans over 90 days delinquent................       0        0       77        0
                                                        ------   ------   ------   ------
          Total non-performing loans..................     994      508      520      542
Other real estate owned:..............................   1,098      579      569      637
                                                        ------   ------   ------   ------
          Total non-performing assets.................  $2,092   $1,087   $1,089   $1,179
                                                        ======   ======   ======   ======
As a percentage of total assets:
          Total non-performing loans..................    0.41%    0.28%    0.25%    0.35%
                                                        ======   ======   ======   ======
          Total non-performing assets.................    0.87%    0.60%    0.53%    0.77%
                                                        ======   ======   ======   ======
</TABLE>
 
                                       72
<PAGE>   82
 
     As of June 30, 1997 and December 31, 1996, loans on non-accrual status
totaled $1.0 million and $.4 million, respectively. Additionally, as of June 30,
1997, there were no loans over 30 days delinquent.
 
  Allowance for Loan Losses
 
     In originating loans, the Bank recognizes that credit losses will be
experienced and that the risk of loss will vary with, among other things, the
type of loan being made, the credit worthiness of the borrower over the term of
the loan and, in the case of a collateralized loan, the quality of the
collateral for the loan, as well as general economic conditions. As a matter of
policy, the Bank maintains an allowance for loan losses. The amount provided for
loan losses during any period is based on an evaluation by management of the
amount needed to maintain the allowance at a level sufficient to cover
anticipated losses and the inherent risk of losses in the loan portfolio. In
determining the amount of the allowance, management considers the dollar amount
of loans outstanding, its assessment of known or potential problem loans,
current economic conditions, the risk characteristics of the various
classifications of loans, credit record of its borrowers, the fair market value
of underlying collateral and other factors. Specific allowances are provided for
individual loans when ultimate collection is considered questionable by
management after reviewing the current status of loans which are contractually
past due and considering the fair value of the underlying collateral for each
loan.
 
     Management continues to actively monitor the Bank's asset quality and to
charge-off loans against the allowance for loan losses when appropriate or to
provide specific loss allowances when necessary. Although management believes
that it uses the best information available at the time to make determinations
with respect to allowance for loan losses, subsequent adjustments to the
allowance for loan losses may be necessary if future economic conditions or
other facts differ from the assumptions used in making the initial
determinations or if regulatory policies change.
 
     During the year ended December 31, 1996, the provision for loan losses was
$396,000, compared to $615,000 during the year ended December 31, 1995, or a
decrease of $219,000. Total charged off loans, net of recoveries, were $34,000
for 1996 and $109,000 for 1995.
 
                                       73
<PAGE>   83
 
     The activity in the Bank's allowance for loan losses was as follows for the
periods indicated:
 
<TABLE>
<CAPTION>
                                    AT JUNE 30,                        AT DECEMBER 31,
                                -------------------   -------------------------------------------------
                                  1997       1996       1996       1995      1994      1993      1992
                                --------   --------   --------   --------   -------   -------   -------
                                                        (DOLLARS IN THOUSANDS)
<S>                             <C>        <C>        <C>        <C>        <C>       <C>       <C>
Allowance at beginning of
  period......................  $  2,362   $  2,000   $  2,000   $  1,493   $   866   $ 2,400   $ 1,240
Loans charged off:
  Commercial..................        11          0         48        103        16     3,127       226
  Construction................         0          0          0          0         0         0         0
  Real estate.................         0          0         58         17        10       727       121
  Installment.................         5          5         20          0        24       207         0
                                --------   --------   --------   --------   -------   -------   -------
         Total loans
           charged-off........        16          5        126        120        50     4,061       347
                                --------   --------   --------   --------   -------   -------   -------
Recoveries:
  Commercial..................        59         29         47          9       240         0        46
  Construction................         0          0          0          0         0         0         0
  Real estate.................        28         40         40          0         8         0         0
  Installment.................         1          5          5          3        10        11         0
                                --------   --------   --------   --------   -------   -------   -------
         Total recoveries.....        88         74         92         12       258        11        46
                                --------   --------   --------   --------   -------   -------   -------
  Net loans charged-off.......       (72)       (69)        34        108      (208)    4,050       301
                                --------   --------   --------   --------   -------   -------   -------
Provision for loan losses
  charged to expense..........       303        186        396        615       419     2,516     1,461
                                --------   --------   --------   --------   -------   -------   -------
Allowance at end of period....  $  2,737   $  2,255   $  2,362   $  2,000   $ 1,493   $   866   $ 2,400
                                ========   ========   ========   ========   =======   =======   =======
Net charge-offs as a
  percentage of average loans
  outstanding.................     -0.04%     -0.06%      0.03%      0.11%    -0.31%     6.61%     0.50%
                                ========   ========   ========   ========   =======   =======   =======
Allowance to period-end loans
  receivable..................      1.54%      1.78%      1.58%      1.80%     1.79%     1.54%     3.72%
                                ========   ========   ========   ========   =======   =======   =======
Average loans outstanding.....  $164,076   $115,092   $126,219   $ 94,338   $67,987   $61,231   $60,420
                                ========   ========   ========   ========   =======   =======   =======
Period-end total loans
  receivable..................  $177,847   $126,417   $149,615   $111,378   $83,320   $56,173   $64,507
                                ========   ========   ========   ========   =======   =======   =======
</TABLE>
 
  Investment Securities
 
     The total investment portfolio decreased to $22.8 million as of December
31, 1996, from $24.4 million as of December 31, 1995, a decrease of $1.6 million
or 6.6%. The decrease in investment securities in 1996 was due primarily to a
larger reliance on federal funds purchased, which increased from $1.6 million to
$8.3 million, coupled with a transfer of earning assets from investments to
loans due to strong demand during 1996. From December 31, 1996 to June 30, 1997,
the total investment portfolio increased $7.5 million or 33.0%, a growth rate
consistent with the over-all growth of the Bank.
 
     The following table sets forth the carrying value of the Bank's investment
portfolio for the periods indicated:
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,
                                                            JUNE 30,   -----------------
                                                              1997      1996      1995
                                                            --------   -------   -------
                                                               (DOLLARS IN THOUSANDS)
<S>                                                         <C>        <C>       <C>
Securities Available for Sale:
  U.S. Treasury Securities................................  $20,992    $15,002   $12,067
  U.S. Government agency obligations......................    8,994      7,463    12,042
Federal Reserve Bank stock................................      319        319       301
                                                            -------    -------   -------
          Total investment securities.....................  $30,305    $22,784   $24,410
                                                            =======    =======   =======
</TABLE>
 
     The Bank has adopted Statement of Financial Accounting Standards No. 115
("FAS 115"), which requires companies to classify investments securities as
either held-to-maturity, available-for-sale, or trading securities. Securities
classified as held-to-maturity are carried at amortized cost. Securities
classified as
 
                                       74
<PAGE>   84
 
available-for-sale are reported at fair value, with unrealized gains and losses,
net of tax effect, reported as a separate component of stockholders' equity.
Securities classified as trading securities are recorded at fair value, with
unrealized gains and losses included in earnings. At June 30, 1997 and December
31, 1996, all the Bank's securities were classified as available-for-sale.
 
     The maturity distribution and certain other information pertaining to
investment securities was as follows for June 30, 1997:
 
<TABLE>
<CAPTION>
                                                              AMORTIZED   ESTIMATED
                                                                COST      FAIR VALUE   YIELD
                                                              ---------   ----------   -----
                                                                  (DOLLARS IN THOUSANDS)
<S>                                                           <C>         <C>          <C>
Securities Available for Sale
  U.S. Treasury Securities
     Due within one year....................................   $19,970     $  19,990   5.42%
     Due one to five years..................................     1,002         1,002   5.83
  U.S. Government agency obligations
     Due within one year....................................     5,997         5,988   5.61
     Due one to five years..................................     3,000         3,006   5.92
  Federal Reserve Bank Stock................................       319           319
                                                               -------     ---------   ----
          Total securities..................................   $30,288     $  30,305   5.53%
                                                               =======     =========   ====
</TABLE>
 
Deposit Activities
 
     Deposits are the major source of the Bank's funds for lending and other
investment purposes. Deposits are attracted principally from within the Bank's
primary market area through the offering of a broad variety of deposit
instruments including checking accounts, money market accounts, regular savings
accounts, term certificate accounts (including "jumbo" certificates in
denominations of $100,000 or more) and retirement savings plans.
 
     The distribution by type of the Bank's deposit accounts was as follows for
the periods indicated:
 
<TABLE>
<CAPTION>
                          AS OF JUNE 30,                            AS OF DECEMBER 31,
                        -------------------   ---------------------------------------------------------------
                               1997                  1996                  1995                  1994
                        -------------------   -------------------   -------------------   -------------------
                                     % OF                  % OF                  % OF                  % OF
                         AMOUNT    DEPOSITS    AMOUNT    DEPOSITS    AMOUNT    DEPOSITS    AMOUNT    DEPOSITS
                        --------   --------   --------   --------   --------   --------   --------   --------
                                                       (DOLLARS IN THOUSANDS)
<S>                     <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Demand Deposits.......  $ 45,747     21.79%   $ 44,915     25.46%   $ 30,023     22.35%   $ 23,256     21.66%
NOW accounts..........    12,761      6.08      14,233      8.07      11,019      8.20      10,586      9.86
Money market
  accounts............    42,303     20.15      35,260     19.99      30,732     22.87      24,009     22.36
Savings accounts......     3,456      1.65       2,699      1.53       1,995      1.48       1,939      1.81
Time deposits:
  Under $100,000......    52,260     24.90      45,058     25.54      35,620     26.51      32,157     29.95
  $100,000 and over...    53,385     25.43      34,251     19.41      24,968     18.58      15,416     14.36
                        --------    ------    --------    ------    --------    ------    --------    ------
          Total
            deposits..  $209,912    100.00%   $176,416    100.00%   $134,357    100.00%   $107,363    100.00%
                        ========    ======    ========    ======    ========    ======    ========    ======
</TABLE>
 
     Time deposits included individual retirement accounts ("IRAs") totalling
$3.8 million, $2.9 million and $2.5 million for June 30, 1997 and December 31,
1996 and 1995, respectively, all of which were in the form of certificates of
deposit.
 
     The Bank's deposits increased to $176.5 million as of December 31, 1996,
from $134.4 million as of December 31, 1995, an increase of $42.1 million or
31.3%. From December 31, 1996 to June 30, 1997, deposits increased an additional
$33.5 million, or 16.0%. These increases were the result of expanding into
several new markets, coupled with providing deposit products at competitive
prices.
 
                                       75
<PAGE>   85
 
     Maturity terms, service fees and withdrawal penalties are established by
the Bank on a periodic basis. The determination of rates and terms is predicated
on funds acquisition and liquidity requirements, rates paid by competitors,
growth goals and federal regulations.
 
     FDIC regulations limit the ability of certain insured depository
institutions to accept, renew, or rollover deposits by offering rates of
interest which are significantly higher than the prevailing rates of interest on
deposits offered by other insured depository institutions having the same type
of charter in such depository institutions' normal market area. Under these
regulations, "well capitalized" depository institutions may accept, renew, or
roll over deposits at such rates without restriction, "adequately capitalized"
depository institutions may accept, renew or roll over deposits at such rates
with a waiver from the FDIC (subject to certain restrictions on payments of
rates), and "undercapitalized" depository institutions may not accept, renew or
roll over deposits at such rates. As of December 31, 1996 and June 30, 1997, the
Bank met the definition of a "well capitalized" depository institution.
 
     The Bank does not have a concentration of deposits from any one source, the
loss of which would have a material adverse effect. Management believes that
substantially all of the Bank's depositors are residents in its primary market
area and it currently does not accept brokered deposits.
 
     Time deposits of $100,000 and over, public fund deposits and other large
deposit accounts tend to be short-term in nature and more sensitive to changes
in interest rates than other types of deposits and, therefore, may be a less
stable source of funds. In the event that existing short-term deposits are not
renewed, the resulting loss of the deposited funds could adversely affect the
Bank's liquidity. In a rising interest rate market, such short-term deposits may
prove to be a costly source of funds because their short-term nature facilitates
renewal at increasingly higher interest rates, which may adversely affect the
Bank's earnings. However, the converse is true in a falling interest-rate market
where such short-term deposits would be more favorable.
 
     Time deposits of $100,000 and over mature as follows for the periods
indicated:
 
<TABLE>
<CAPTION>
                                                              JUNE 30,   DECEMBER 31,
                                                                1997         1996
                                                              --------   ------------
                                                              (DOLLARS IN THOUSANDS)
<S>                                                           <C>        <C>
Due in three months or less.................................  $11,058      $10,066
Due from three months to six months.........................   12,873        5,982
Due from six months to one year.............................   22,989       12,315
Due over one year...........................................    6,465        5,888
                                                              -------      -------
          Total time deposits $100,000 and over.............  $53,385      $34,251
                                                              =======      =======
</TABLE>
 
IMPACT OF INFLATION AND CHANGING PRICES
 
     The financial statements and related data concerning United American have
been prepared in accordance with generally accepted accounting principles which
require the measurement of financial position and operating results in terms of
historical dollars without considering changes in the relative purchasing power
of money over time due to inflation. The principal element of United American's
earnings is interest income which may be significantly affected by the level of
inflation and by government monetary and fiscal policies adopted in response to
inflationary or deflationary pressures.
 
     Inflation affects the reported financial condition and results of
operations of all companies. However, the majority of assets and liabilities of
financial institutions are monetary in nature and therefore differ greatly from
most commercial and industrial companies that have significant investments in
fixed assets or inventories. Inflation does have an important impact on the
growth of total assets and the resulting need to increase equity capital at
higher than normal rates in order to maintain an appropriate equity to assets
ratio Inflation also is a factor which may influence interest rates, yet the
frequency and magnitude of interest rate fluctuations do not necessarily
coincide with changes in the general inflation rate. In an effort to cope with
the effects of inflation, United American attempts to monitor its interest-rate
sensitivity gap position, as discussed above. In addition, a periodic review of
banking services and products is conducted to adjust pricing in view of current
costs.
 
                                       76
<PAGE>   86
 
FUTURE ACCOUNTING REQUIREMENTS
 
     Statement of Financial Accounting Standards No. 125 ("FAS 125"),
"Accounting for Transfers and Servicing of Financial Assets and Extinguishments
of Liabilities" provides accounting and reporting standards for transfers and
servicing of financial assets and extinguishments of liabilities based on
consistent application of a financial components approach that focuses on
control. FAS 125 provides standards for distinguishing transfers of financial
assets from transfers that are secured borrowings. The accounting and disclosure
requirements of FAS 125 became become effective for United American beginning
January 1, 1997. Management does not anticipate that FAS 125 will have a
material impact on United American's financial statements.
 
     In February 1997, the FASB issued SFAS No. 128 "Earnings per Share" ("SFAS
128"), which simplifies the standards for computing earnings per share ("EPS")
previously found in APB Opinion No. 15 "Earnings per Share" and makes them
comparable to international EPS standards. SFAS 128 replaces the presentation of
"primary" EPS with a presentation of "basic" EPS and requires dual presentation
of "basic" and "diluted" EPS on the face of the statement of operation for all
entities with complex capital structures. The standard also requires a
reconciliation of the numerator and denominator of the "basic" EPS computation
to the numerator and denominator of the "diluted" EPS computation. SFAS 128 is
effective for fiscal years ending after December 15, 1997, but application to
interim periods prior to December 15, 1997 is not permitted. The adoption of
SFAS 128 is not expected to have a material effect on United American's
presentation of EPS.
 
     In June 1997, the FASB issued SFAS No. 130 "Reporting Comprehensive Income"
("SFAS 130"), which establishes standards for reporting and display of
comprehensive income and its components (revenue, expenses, gains and losses) in
a full set of general-purpose financial statements. SFAS 130 is effective for
fiscal years beginning after December 15, 1997. United American expects to adopt
the provisions of SFAS 130 in the first quarter of 1998 and will reclassify the
financial statements for earlier periods provided for comparative purposes as
required by the Statement. The application of the new rules will not have an
impact on United American's financial position or results of operations.
 
                                       77
<PAGE>   87
 
                             BUSINESS OF BANCGROUP
 
GENERAL
 
     BancGroup is a bank holding company registered under the BHCA. It was
organized in 1974 under the laws of Delaware and has operated under its current
name and management since 1981. BancGroup operates Colonial Bank as its wholly
owned commercial banking subsidiary in the states of Alabama, Georgia, Florida
and Tennessee. Colonial Bank, an Alabama banking corporation, conducts a full
service banking business through 118 branches in Alabama, five branches in
Tennessee, 14 branches in Georgia and 51 branches in Florida. Colonial Mortgage
Company, a subsidiary of Colonial Bank in Alabama, is a mortgage banking company
which services approximately $12.3 billion in residential loans and which
originates mortgages in 37 states through four divisional offices. BancGroup's
commercial banking loan portfolio is comprised primarily of commercial real
estate loans (24%) and residential real estate loans (45%), a significant
portion of which is located within the State of Alabama. BancGroup's growth in
loans over the past several years has been concentrated in commercial and
residential real estate loans.
 
RECENTLY COMPLETED AND OTHER PROPOSED BUSINESS COMBINATIONS
 
     Since June 30, 1997, BancGroup has acquired four banking institutions,
First Commerce, Great Southern, Dadeland and First Independence, located in
Florida, with aggregate assets and stockholders' equity acquired of $429.1
million and $40.9 million, respectively. These acquisitions are included in the
pro forma statements contained herein. See "The Colonial BancGroup, Inc. and
Subsidiaries -- Condensed Pro Forma Statements of Condition (Unaudited)."
 
     BancGroup has entered into a definitive agreement dated as of August 28,
1997, to acquire ASB Bancshares, Inc. ("ASB"). ASB is a Delaware corporation and
is a holding company for Ashville Savings Bank located in Ashville, Alabama. ASB
will merge with BancGroup and following such merger Ashville Savings Bank will
merge with BancGroup's existing bank subsidiary, Colonial Bank. BancGroup will
issue a maximum of 467,398 shares of its Common Stock, depending upon the market
value at the time of such merger, and issue an aggregate amount of $7,724,813 in
subordinated debentures to the shareholders of ASB. This transaction is subject
to, among other things, approval by the stockholders of ASB and approval by
appropriate regulatory authorities. At June 30, 1997, ASB had assets of $142.2
million, deposits of $129.3 million and stockholders' equity of $11.6 million.
 
     BancGroup has entered into a definitive agreement dated as of September 4,
1997, to acquire South Florida Banking Corp. ("South Florida"). South Florida is
a Florida corporation and is a holding company for First National Bank of
Florida at Bonita Springs located in Bonita Springs, Florida. South Florida will
merge with BancGroup and following such merger First National Bank of Florida at
Bonita Springs will merge with BancGroup's existing bank subsidiary, Colonial
Bank. BancGroup will issue an estimated maximum of 1,929,744 shares of its
Common Stock to the shareholders of South Florida. This transaction is subject
to, among other things, approval by the stockholders of South Florida and
approval by appropriate regulatory authorities. At June 30, 1997, South Florida
had assets of $249.6 million, deposits of $210.4 million and stockholders'
equity of $16.1 million.
 
     BancGroup has entered into a definitive agreement dated as of September 9,
1997, to acquire First Central Bank ("First Central"). First Central is a
Florida bank located in St. Petersburg, Florida. First Central will merge with
BancGroup's bank subsidiary, Colonial Bank. BancGroup will issue a maximum of
688,742 shares of its Common Stock, depending upon the market value at the time
of such merger. The actual number of shares of BancGroup Common Stock to be
issued in this transaction will depend upon the market value of such Common
Stock at the time of the acquisition. This transaction is subject to, among
other things, approval by the stockholders of First Central and approval by
appropriate regulatory authorities. At June 30, 1997, First Central had assets
of $54.7 million, deposits of $44.6 million and stockholders' equity of $9.7
million.
 
                                       78
<PAGE>   88
 
YEAR 2000 COMPLIANCE
 
     Most computer software programs and processing systems, including those
used by BancGroup and its subsidiaries in their operations, have not been
designed to accommodate entries beyond the year 1999 in date fields. Failure to
address the anticipated consequences of this design deficiency could have
material adverse effects on the business and operations of any business,
including BancGroup, that relies on computers and associated technologies. In
response to the challenges of addressing such consequences in the banking
industry, bank regulatory agencies, including the Federal Reserve, BancGroup's
primary regulator, have established a Year 2000 Supervision Program and
published guidelines for implementing procedures to bring the computer software
programs and processing systems into year 2000 compliance.
 
     In compliance with the guidelines of the Federal Reserve, BancGroup has
assigned staff on a full time basis to assess the impact of year 2000 on all
areas of BancGroup, Colonial Bank and the bank's mortgage company subsidiary.
The staff is responsible for developing and implementing a strategy to ensure
that all critical systems are year 2000 compliant and testing has begun by
fourth quarter 1998. All critical Bank software and processing systems are
currently being upgraded to year 2000 compliant status. The anticipated cost of
upgrading those systems for Colonial Bank is presently estimated to be
approximately $800,000. The mortgage company servicing system is scheduled to be
rewritten into year 2000 compliant format by November 1998. The cost of the
mortgage company servicing system rewrite, in addition to other systems upgrades
is estimated to be $2.7 million spread over the next two to three years.
BancGroup anticipates that these modifications will bring added functionality
and capacity to BancGroup. Micro computer based systems are currently being
assessed, and the cost of bringing those systems into year 2000 compliance is
not currently ascertainable. The costs to bring other miscellaneous systems into
year 2000 compliance is not expected to be material.
 
VOTING SECURITIES AND PRINCIPAL STOCKHOLDERS
 
     As of April 30, 1997, BancGroup had issued and outstanding 40,740,357
shares of BancGroup Common Stock with 7,729 stockholders of record. Each such
share is entitled to one vote. In addition, as of that date, 1,839,981 shares of
BancGroup Common Stock were subject to issue upon exercise of options pursuant
to BancGroup's stock option plans and up to 512,800 shares of BancGroup Common
Stock were issuable upon conversion of BancGroup's 1986 Debentures. There are
currently 100,000,000 shares of BancGroup Common Stock authorized.
 
     The following table shows those persons who are known to BancGroup to be
beneficial owners as of April 30, 1997, of more than five percent of outstanding
BancGroup Common Stock.
 
<TABLE>
<CAPTION>
                                                                              PERCENTAGE
                                                                COMMON         OF CLASS
NAME AND ADDRESS                                                STOCK       OUTSTANDING(1)
- ----------------                                              ----------    --------------
<S>                                                           <C>           <C>
Robert E. Lowder(2).........................................   2,888,820(3)      6.78%
  Post Office Box 1108 Montgomery, AL 36101
James K. Lowder.............................................   2,199,298         5.17%
  Post Office Box 250 Montgomery, AL 36142
Thomas H. Lowder............................................   2,146,106         5.04%
  Post Office Box 11687 Birmingham, AL 35202
</TABLE>
 
- ---------------
 
(1) Percentages are calculated assuming the issuance of 1,839,981 shares of
    BancGroup Common Stock pursuant to BancGroup's stock option plans.
(2) Robert E. Lowder is the brother of James K. and Thomas H. Lowder. Robert E.
    Lowder disclaims any beneficial ownership interest in the shares owned by
    his brothers and the 85,442 shares owned by his mother.
 
                                       79
<PAGE>   89
 
(3) Includes 181,020 shares of BancGroup Common Stock subject to options under
    BancGroup's stock option plans.
 
SECURITY OWNERSHIP OF MANAGEMENT
 
     The following table indicates for each director, executive officer, and all
executive officers and directors of BancGroup as a group the number of shares of
outstanding Common Stock of BancGroup beneficially owned as of June 30, 1997.
 
<TABLE>
<CAPTION>
                                                                             PERCENTAGE
                                                               COMMON         OF CLASS
NAME                                                            STOCK      OUTSTANDING(1)
- ----                                                          ---------    --------------
<S>                                                           <C>              <C>     
DIRECTORS                                                                              
Lewis Beville...............................................      1,816            *   
Young J. Boozer.............................................     15,256(2)         *   
William Britton.............................................     19,616            *   
Jerry J. Chesser............................................    147,428            *   
Augustus K. Clements, III...................................     18,600            *   
Robert S. Craft.............................................     11,994            *   
Patrick F. Dye..............................................     37,960(3)         *   
Clinton O. Holdbrooks.......................................    280,900(4)         *   
D. B. Jones.................................................     20,714(5)         *   
Harold D. King..............................................    156,108            *   
Robert E. Lowder**..........................................  2,888,820(6)      6.78%  
John Ed Mathison............................................     28,454            *   
Milton E. McGregor..........................................         --            *   
John C. H. Miller, Jr.......................................     40,480(7)         *   
Joe D. Mussafer.............................................     20,264            *   
William E. Powell, III......................................     14,352            *   
J. Donald Prewitt...........................................    244,940(8)         *   
Jack H. Rainer..............................................      2,900            *   
Jimmy Rane..................................................         --            *   
Frances E. Roper............................................    365,342            *   
Samuel Sippial..............................................      2,774            *   
Ed V. Welch.................................................     30,454            *   
EXECUTIVE OFFICERS WHO ARE NOT ALSO DIRECTORS                                          
Young J. Boozer, III........................................     46,920(9)         *   
W. Flake Oakley, IV.........................................     39,458(9)         *   
P.L. "Mac" McLeod, Jr.......................................     74,951(9)(10)     *   
Michelle Condon.............................................     18,586(9)         *   
All Executive Officers and Directors as a Group.............  4,529,087(11)     10.64% 
</TABLE>
 
- ---------------
 
   * Represents less than one percent.
  ** Executive Officer.
 (1) Percentages are calculated assuming the issuance of 1,839,981 shares of
     Common Stock pursuant to BancGroup's stock option plans.
 (2) Includes 1,000 shares of Common Stock out of 2,000 shares owned by Young J.
     Boozer, and Young J. Boozer, III EX U/W Phyllis C. Boozer.
 (3) Includes 35,960 shares of Common Stock subject to options exercisable under
     BancGroup's stock option plans.
 (4) Includes 24,524 shares of Common Stock subject to options under BancGroup's
     stock option plans, and 78,998 shares over which Mr. Holdbrooks serves as
     trustee.
 (5) Mr. Jones holds power to vote these shares as trustee.
 
                                       80
<PAGE>   90
 
 (6) These shares include 181,020 shares of Common Stock subject to options
     under BancGroup's stock option plans. See the table at "Voting Securities
     and Principal Stockholders."
 (7) Includes 20,000 shares subject to options.
 (8) Includes 61,604 shares subject to stock options.
 (9) Young J. Boozer, III, W. Flake Oakley, IV, P.L. "Mac" McLeod, Jr. and
     Michelle Condon, hold options respecting 25,000, 18,000, 26,000 and 11,000
     shares of Common Stock, respectively, pursuant to BancGroup's stock option
     plans.
(10) P.L. "Mac" McLeod, Jr. was nominated as President of BancGroup on August
     12, 1997, and such nomination was approved by BancGroup's Board of
     Directors on October 15, 1997.
(11) Includes shares subject to options.
 
MANAGEMENT INFORMATION
 
     Certain information regarding the biographies of the directors and
executive officers of BancGroup, executive compensation and related party
transactions is included in (i) BancGroup's Annual Report on Form 10-K for the
fiscal year ending December 31, 1996, at item 10; (ii) BancGroup's Proxy
Statement for its 1997 Annual Meeting, at items 10, 11 and 13; and (iii)
BancGroup's Report on Form 8-K dated October 30, 1997, and is incorporated
herein by reference.
 
     After the Effective Date, it is anticipated that James L. Hewitt will be
nominated to the Board of Directors of BancGroup. The following biographical
information is provided in the event Mr. Hewitt accepts such nomination:
 
JAMES L. HEWITT
 
     Jim Hewitt, a life long resident of Orlando, is a graduate of Florida State
University where he received a B.S. Degree in Finance and Accounting in 1965.
Following graduation, Mr. Hewitt was in Corporate Accounting, and subsequently
was employed as an Account Executive with the securities firm of Merrill, Lynch,
Pierce, Fenner and Smith, Inc. From 1970 to 1976, Mr. Hewitt was in the business
of organizing and operating Child Care Centers. Mr. Hewitt served as co-owner of
Little Friends, Inc. which established eight centers in four municipalities in
Florida. His company was sold to Gerber Products in March 1976. From March 1976
to January 1992, Mr. Hewitt was engaged in the acquisition, sale, and management
of real estate properties. During this period, Mr. Hewitt formed 28 separate
partnerships to acquire real estate properties in the Central Florida market
area. Mr. Hewitt was the founder and until November of 1991 a principal owner of
The Orlando Magic (NBA Franchise). Since January 1992, Mr. Hewitt has served as
the Chairman, President and Chief Executive Officer of United American Holding
Corporation, which owns United American Bank of Central Florida (which he
chartered in 1984).
 
                                       81
<PAGE>   91
 
                          BUSINESS OF UNITED AMERICAN
 
GENERAL
 
     United American was incorporated under the laws of the State of Florida on
September 12, 1988 under the name Florida Security Holding Corporation. The name
of the corporation was changed to United American Holding Corporation on October
27, 1992. United American is a registered bank holding company under the BHCA,
and owns all of the voting shares of the Bank.
 
     The Bank commenced operations in 1985. The Bank is a state banking
corporation subject to regulation by the Federal Deposit Insurance Corporation
("FDIC") and the Florida Department. The Bank's operations are conducted from
its main office located in Orlando, Florida, and branch offices located in the
Central Florida region.
 
     The Bank provides a range of consumer and commercial banking services to
individuals, businesses and industries. The basic services offered by the Bank
include: demand interest bearing and noninterest bearing accounts, money market
deposit accounts, NOW accounts, time deposits, safe deposit services, credit
cards, cash management, direct deposits, notary services, money orders, night
depository, travelers' checks, cashier's checks, domestic collections, savings
bonds, bank drafts, drive-in tellers, and banking by mail. In addition, the Bank
makes secured and unsecured commercial, real estate, and consumer loans and
issues standby letters of credit. The Bank provides automated teller machine
("ATM") cards, as a part of the HONOR ATM network, thereby permitting customers
to utilize the convenience of larger ATM networks. The Bank does not have trust
powers and, accordingly, provides no trust services.
 
     The revenues of the Bank are primarily derived from interest on, and fees
received in connection with, real estate and other loans, and from interest and
dividends from short-term investments. The principal sources of funds for the
Bank's lending activities are its deposits, repayment of loans, and the sale and
maturity of investment securities. The principal expenses of the Bank are the
interest paid on deposits, and operating and general administrative expenses.
 
     As is the case with banking institutions generally, the Bank's operations
are materially and significantly influenced by general economic conditions and
by related monetary and fiscal policies of financial institution regulatory
agencies, including the Federal Reserve, the FDIC, and the Florida Department.
Deposit flows and costs of funds are influenced by interest rates on competing
investments and general market rates of interest. Lending activities are
affected by the demand for financing of real estate and other types of loans,
which in turn are affected by the interest rates at which such financing may be
offered and other factors affecting local demand and availability of funds. The
Bank faces strong competition in the attraction of deposits (its primary source
of lendable funds) and in the origination of loans.
 
DEPOSIT ACTIVITIES
 
     Deposits are the major source of the Bank's funds for lending and other
investment activities. The Bank considers the majority of its regular savings,
demand, NOW and money market deposit accounts to be core deposits. These
accounts comprised 49.7% of the Bank's total deposits at June 30, 1997. At June
30, 1997, 50.3% of the Bank's deposits were certificates of deposit. Generally,
the Bank attempts to maintain the rates paid on its deposits at a competitive
level. Time deposits of $100,000 and over made up 25.4% of the Bank's total
deposits at June 30, 1997. The majority of the deposits of the Bank are
generated in the Orange County market. The Bank does not accept brokered
deposits. For additional information on the Bank's deposit activities, see
"United American Management's Discussion and Analysis of Financial Condition and
Results of Operations -- Financial Condition -- Deposit Activities".
 
LENDING ACTIVITIES
 
     The Bank offers a range of lending services, including real estate,
consumer and commercial loans, to individuals and small businesses and other
organizations that are located in, or conduct a substantial portion of their
business in, the Bank's market area. The Bank's loans receivable, net at June
30, 1997 were $177.8
 
                                       82
<PAGE>   92
 
million, or 73.8% of total assets. The interest rates charged on loans vary with
the degree of risk, maturity, and amount of the loan, and are further subject to
competitive pressures, money market rates, availability of funds, and government
regulations. The Bank has no foreign loans or loans for highly leveraged
transactions.
 
     The Bank's loans are concentrated in three major areas: real estate loans,
commercial loans, and consumer loans. As of June 30, 1997, 71.8% of the Bank's
loan portfolio consisted of loans secured by mortgages on real estate and 23.0%
of the loan portfolio consisted of commercial loans. At the same date, 5.2% of
the Bank's loan portfolio consisted of consumer and other loans.
 
     The Bank's real estate loans are secured by mortgages and consist primarily
of loans to individuals and businesses for the purchase, improvement of or
investment in real estate and for the construction of single-family residential
units or the development of single-family residential building lots. These real
estate loans may be made at fixed- or variable-interest rates. The Bank
generally does not make fixed-interest rate commercial real estate loans for
terms exceeding five years. Loans in excess of three years generally have
adjustable-interest rates. The Bank's residential real estate loans generally
are repayable in monthly installments based on up to a 30-year amortization
schedule with variable-interest rates.
 
     The Bank's commercial loans include loans to individuals and
small-to-medium sized businesses located primarily in Orange County for working
capital, equipment purchases, and various other business purposes. A majority of
the Bank's commercial loans are secured by equipment or similar assets, but
these loans may also be made on an unsecured basis. Commercial loans may be made
at variable- or fixed-interest rates. Commercial lines of credit are typically
granted on a one-year basis, with loan covenants and monetary thresholds. Other
commercial loans with terms or amortization schedules of longer than one year
will normally carry interest rates which vary with the prime lending rate and
will become payable in full and are generally refinanced in three to five years.
 
     The Bank's consumer loan portfolio consists primarily of loans to
individuals for various consumer purposes, but includes some business purpose
loans which are payable on an installment basis. The majority of these loans are
for terms of less than five years and are secured by liens on various personal
assets of the borrowers, but consumer loans may also be made on an unsecured
basis. Consumer loans are made at fixed-and variable-interest rates, and are
often based on up to a five-year amortization schedule.
 
     Loan originations are derived from a number of sources, including direct
solicitation by the Bank's loan officers, existing customers and borrowers,
advertising, walk-in customers and, in some instances, referrals from brokers.
 
     For additional information on the Bank's lending activities, see "United
American Management's Discussion and Analysis of Financial Condition and Results
of Operations -- Financial Condition -- Lending Activities," and "-- Asset
Quality."
 
INVESTMENTS
 
     The Bank invests a portion of its assets in U.S. Treasury and U.S.
Government agency obligations, certificates of deposit, and federal funds sold.
The Bank's investments are managed in relation to loan demand and deposit
growth, and are generally used to provide for the investment of excess funds at
reduced yields and risks relative to yields and risks of the loan portfolio,
while providing liquidity to fund increases in loan demand or to offset
fluctuations in deposits. For additional information relating to United
American's investments, see "United American Management's Discussion and
Analysis of Financial Condition and Results of Operations -- Financial
Condition -- Investment Securities" and Note 3 to the Notes to United American's
Consolidated Financial Statements.
 
EMPLOYEES
 
     As of June 30, 1997, United American employed 77 full-time employees and 13
part-time employee. The employees are not represented by a collective bargaining
unit. United American and the Bank consider relations with employees to be good.
 
                                       83
<PAGE>   93
 
PROPERTIES
 
     The main office of United American and the Bank is located at 105 West
Colonial Drive, Orlando, Florida 32801, in a two story building of approximately
4,400 square feet, which is owned by the Bank.
 
     The Bank also has banking offices as follows: the Longwood Office is
located at 801 East State Road 434, Longwood, Florida, 32750; the Kissimmee
Office is located at 1700 West Vine Street, Kissimmee, Florida 34741; the
Maitland Office is located at 360 East Horatio Avenue, Maitland, Florida 32751;
the Pine Hills Office is located at 5404 Silver Star Road, Orlando, Florida
32808; the Apopka Office is located at 2488 Semoran Blvd., Apopka, Florida
32703; the Corrine Drive Office is located at 3101 Corrine Drive, Orlando,
Florida 32803; the Ocoee Office is located at 1550 Maguire Road, Ocoee, Florida
34761; and the South Orlando Office is located at 2703 South Orange Avenue,
Orlando, Florida 32806. All of the foregoing offices are owned by the Bank,
except the Pine Hills Office (which is leased under a sublease arrangement for a
period of time pending a resolution of the dispute between the owners as to
whether the sublessor has the right to continue to lease the property), the
Apopka Office (which is leased pursuant to a lease arrangement which, with
renewal options, expires in 2020), and the South Orlando Office (which is leased
pursuant to a lease arrangement which, with renewal options, expires in 2021).
 
     In September, 1996, United American decided to pursue further development
of its main office. As a part of those efforts, in November, 1996,
representatives of United American and C & G Properties of Orlando, Inc. ("C&G
Properties"), which owns United American's main office and certain property
adjacent to the office, had discussions regarding the acquisition by United
American of such property. C&G Properties was owned, in part, directly or
indirectly by Messrs. Hewitt, John T. Cash, Jr., and James P. Caruso (each of
whom is a director of United American). In December 1996, the United American
Board of Directors initiated a plan to acquire all of the outstanding stock of
C&G Properties. The discussions continued into 1997 and, on July 8, 1997, the
parties entered into an agreement pursuant to which United American would
acquire all of the outstanding shares of C&G Properties in exchange for the
issuance by United American of additional shares of United American Common
Stock. On August 22, 1997, the C&G Properties stock was purchased by United
American for the appraised value of the property owned by C&G Properties which,
net of a mortgage assumed by United American and payment of selling commissions,
was $1,190,000. To acquire C&G Properties, United American issued an aggregate
of 59,500 shares of United American Common Stock, valued at $20.00 per share,
including beneficial ownership of 17,850 shares by Mr. Hewitt, 1,488 shares by
Mr. Cash and 935 shares by Mr. Caruso. United American intends to use the
property acquired from C&G Properties for office expansion, the construction of
an ATM and additional drive-up teller lanes, and for additional Central Florida
Region parking.
 
     The Bank leases its South Orlando Office from Compton Properties, Ltd., a
partnership in which James P. Caruso, a director of United American, is a
general partner. The property lease provides for monthly rental payments of
$6,224, increasing in accordance with the terms of the lease. The Bank utilized
the services of McCree, Inc. (which is owned by Richard T. McCree, a director of
United American) as general contractor for work performed on the South Orlando
Office, pursuant to which it was paid a management fee of $45,000. United
American also anticipates utilizing the services of McCree, Inc. to perform
renovations and additions to its main office.
 
LEGAL PROCEEDINGS
 
     United American and the Bank are periodically parties to or otherwise
involved in legal proceedings arising in the normal course of business, such as
claims to enforce liens, claims involving the making and servicing of real
property loans, and other issues incident to their respective businesses.
Management does not believe that there is any pending or threatened proceeding
against United American or the Bank which, if determined adversely, would have a
material adverse effect on United American's consolidated financial position.
 
                                       84
<PAGE>   94
 
PRINCIPAL HOLDERS OF COMMON STOCK
 
     The following table sets forth information as of October   , 1997,
regarding the ownership of United American Common Stock by each director of
United American, and by all directors and executive officers as a group. Unless
otherwise indicated, all persons shown in the table have sole voting and
investment power with regard to the shares shown.
 
<TABLE>
<CAPTION>
                                                                     SHARES            PERCENTAGE
NAME                                                          BENEFICIALLY OWNED(1)   OF OWNERSHIP
- ----                                                          ---------------------   ------------
<S>                                                           <C>                     <C>
James L. Hewitt.............................................         388,790(2)           21.2
James P. Caruso.............................................         119,250(3)            6.6
John T. Cash, Jr............................................          85,388(4)            4.7
Vincent S. Hughes...........................................          79,750(5)            4.5
Mel R. Martinez.............................................          29,100(6)            1.6
Richard T. McCree...........................................          57,200(7)            3.2
David G. Powers.............................................          30,600(8)            1.7
M. Alan Rowe................................................          29,300(9)            1.6
All directors and executive officers as a group (10
  persons)..................................................         858,978              44.3
</TABLE>
 
- ---------------
 
(1) Information related to beneficial ownership is based upon information
    available to United American and uses "beneficial ownership" concepts set
    forth in rules of the Commission under the Securities Exchange Act of 1934,
    as amended. Under such rules, more than one person may be deemed to be a
    beneficial owner of the same securities, and a person may be deemed to be a
    beneficial owner of securities as to which he may disclaim any beneficial
    interest. Accordingly, directors are named as beneficial owners of shares as
    to which they may disclaim any beneficial interest. Except as otherwise
    indicated in the notes to this table, the individuals possessed sole voting
    and investment power as to all shares of United American Common Stock set
    forth opposite their names. The shares set forth above also include as to
    each director the number of shares listed below, which represent shares the
    individual has the right to acquire pursuant to presently exercisable
    options:
 
<TABLE>
<CAPTION>
NAME OF INDIVIDUAL                                            NUMBER OF SHARES
- ------------------                                            ----------------
<S>                                                           <C>
James L. Hewitt.............................................       55,300
James P. Caruso.............................................       16,750
John T. Cash, Jr............................................        9,400
Vincent S. Hughes...........................................        8,750
Mel R. Martinez.............................................        3,100
Richard T. McCree...........................................        6,700
David G. Powers.............................................       21,300
M. Alan Rowe................................................       20,000
</TABLE>
 
(2) Includes 1,100 shares held by his retirement account.
(3) Includes 90,500 shares held by an investment entity on his behalf.
(4) Includes 28,000 shares held by his spouse and 5,000 shares held by his
    company and its profit sharing trust.
(5) Consists of shares held by his revocable trust.
(6) Includes 25,000 shares held jointly with his spouse and 1,000 shares held by
    his retirement account.
(7) Includes 25,000 shares held jointly with his spouse, and 4,000 shares held
    by his retirement account.
(8) Includes 1,000 shares held by his retirement account.
(9) Includes 3,500 shares held by his retirement account.
 
                         ADJOURNMENT OF SPECIAL MEETING
 
     Approval of the Agreement by United American's shareholders requires the
affirmative vote of at least a majority of the total votes eligible to be cast
at the Special Meeting. In the event there are an insufficient number of shares
of United American Common Stock present in person or by proxy at the Special
Meeting to
 
                                       85
<PAGE>   95
 
approve the Agreement, United American's Board of Directors intends to adjourn
the Special Meeting to a later date provided a majority of the shares present
and voting on the motion have voted in favor of such adjournment. The place and
date to which the Special Meeting would be adjourned would be announced at the
Special Meeting. Proxies voted against the Agreement and abstentions will not be
voted to adjourn the Special Meeting. Abstentions and broker non-votes will not
be voted on this matter but will not count as "no votes." If it is necessary to
adjourn the Special Meeting and the adjournment is for a period of not more than
30 days from the original date of the Special Meeting, no notice of the time and
place of the adjourned meeting need be given the shareholders, other than an
announcement made at the Special Meeting.
 
     The effect of any such adjournment would be to permit United American to
solicit additional proxies for approval of the Agreement. While such an
adjournment would not invalidate any proxies previously filed as long as the
record date for the adjourned meeting remained the same, including proxies filed
by shareholders voting against the Agreement, an adjournment would afford United
American the opportunity to solicit additional proxies in favor of the
Agreement.
 
                                 OTHER MATTERS
 
     The Board of Directors of United American is not aware of any business to
come before the Special Meeting other than those matters described above in this
Prospectus. If, however, any other matters not now known should properly come
before the Special Meeting, the proxy holders named in the accompanying proxy
will vote such proxy on such matters as determined by a majority of the Board of
Directors of United American.
 
             DATE FOR SUBMISSION OF BANCGROUP STOCKHOLDER PROPOSALS
 
     In order to be eligible for inclusion in BancGroup's proxy solicitation
materials for its 1998 annual meeting of stockholders, any stockholder proposal
to take action at such meeting must be received at BancGroup's main office at
One Commerce Street, Post Office Box 1108, Montgomery, Alabama 36101, no later
than 120 calendar days in advance of the date of March 14, 1998.
 
                                 LEGAL MATTERS
 
     Certain legal matters regarding the shares of BancGroup Common Stock of
BancGroup offered hereby are being passed upon by the law firm of Miller,
Hamilton, Snider & Odom, L.L.C., Mobile, Alabama, of which John C. H. Miller,
Jr., a director of BancGroup, is a partner. Such firm received fees for legal
services performed in 1996 of $1,474,853. John C. H. Miller, Jr. beneficially
owns 38,352 shares of Common Stock. Mr. Miller also received employee-related
compensation from BancGroup in 1996 of $41,000. Certain legal matters relating
to the Merger are being passed upon for United American by the law firm of
Smith, Mackinnon, Greeley, Bowdoin & Edwards, P.A., Orlando, Florida.
 
                                    EXPERTS
 
     Coopers & Lybrand L.L.P. serves as the independent accountants for
BancGroup. The consolidated financial statements of BancGroup and the
supplemental consolidated financial statements of BancGroup as of December 31,
1996 and 1995 and for each of the three years ended December 31, 1996 are
incorporated by reference in this Prospectus in reliance upon the report of such
firm, given on the authority of that firm as experts in accounting and auditing.
It is not expected that a representative of such firm will be present at the
Special Meeting.
 
     Coopers & Lybrand L.L.P., serves as the independent accountants for United
American. United American's consolidated financial statements as of December 31,
1996 and 1995 and for each of the three years ended December 31, 1996 are
included in this Prospectus in reliance upon the report of such firm, are given
on the authority of that firm as experts in accounting and auditing. It is not
expected that a representative of such firm will be present at the Special
Meeting.
 
                                       86
<PAGE>   96
 
     PLEASE SIGN AND DATE THE ENCLOSED PROXY CARD AND RETURN IT IN THE
ACCOMPANYING ENVELOPE AS PROMPTLY AS POSSIBLE. YOU MAY REVOKE THE PROXY BY
GIVING WRITTEN NOTICE OF REVOCATION TO THE SECRETARY OF UNITED AMERICAN PRIOR TO
THE SPECIAL MEETING, BY EXECUTING A LATER DATED PROXY AND DELIVERING IT TO THE
SECRETARY OF UNITED AMERICAN PRIOR TO THE SPECIAL MEETING OR BY ATTENDING THE
SPECIAL MEETING VOTING IN PERSON.
 
                                       87
<PAGE>   97
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
June 30, 1997 and 1996:
  Unaudited Consolidated Condensed Balance Sheets -- June
     30, 1997 and 1996......................................  F-2
  Unaudited Consolidated Condensed Statements of
     Income -- Six Months Ended June 30, 1997 and 1996......  F-3
  Unaudited Consolidated Condensed Statements of Cash
     Flows -- Six Months Ended June 30, 1997 and 1996.......  F-4
  Notes to Unaudited Consolidated Condensed Financial
     Statements.............................................  F-5
December 31, 1996 and 1995:
  Report of Independent Accountants.........................  F-6
  Consolidated Balance Sheets -- December 31, 1996 and
     1995...................................................  F-7
  Consolidated Statements of Income -- Years Ended December
     31, 1996, 1995 and 1994................................  F-8
  Consolidated Statements of Stockholders' Equity -- Years
     Ended December 31, 1996, 1995 and 1994.................  F-9
  Consolidated Statements of Cash Flows -- Years Ended
     December 31, 1996, 1995 and 1994.......................  F-10
  Notes to Consolidated Financial Statements................  F-12
</TABLE>
 
                                       F-1
<PAGE>   98
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                UNAUDITED CONSOLIDATED CONDENSED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                   JUNE 30,
                                                              -------------------
                                                                1997       1996
                                                              --------   --------
                                                                (IN THOUSANDS)
<S>                                                           <C>        <C>
                                     ASSETS
Cash and cash equivalents:
  Cash and due from banks...................................  $ 13,053   $  8,660
  Federal funds sold........................................     4,850      4,547
                                                              --------   --------
          Total cash and cash equivalents...................    17,903     13,207
Interest-bearing deposits in banks..........................       267        255
Investment securities available for sale (at aggregate fair
  value)....................................................    30,305     28,598
Loans receivable (net of allowance for loan losses, deferred
  loan fees, and unearned discounts of $3,499 in 1997 and
  $2,799 in 1996)...........................................   177,847    126,417
Bank premises and equipment, net............................     6,799      5,785
Accrued interest receivable.................................     1,321      1,256
Goodwill, net...............................................     2,106      2,173
Other real estate...........................................     1,098        579
Other assets................................................     3,329      2,536
                                                              --------   --------
          Total assets......................................  $240,975   $180,806
                                                              ========   ========
                      LIABILITIES AND STOCKHOLDERS' EQUITY
Deposits:
  Noninterest-bearing demand................................  $ 45,747   $ 36,703
  Interest-bearing:
     Demand.................................................    12,761     12,287
     Savings................................................    45,759     38,931
     Time, $100,000 and over................................    53,385     28,675
     Other time.............................................    52,260     41,807
                                                              --------   --------
          Total deposits....................................   209,912    158,403
Securities sold under agreements to repurchase..............     7,742      5,929
Accrued interest payable....................................       459        359
Other liabilities...........................................       773        667
Note payable................................................     2,600        600
                                                              --------   --------
          Total liabilities.................................   221,486    165,958
                                                              --------   --------
Stockholders' equity:
  Common stock, par value $.01; 2,000 and 2,000 shares
     authorized; 1,720 and 1,500 shares issued and
     outstanding at June 30, 1997 and 1996, respectively....        17         15
  Additional paid-in capital................................    17,775     15,056
  Unrealized gain (loss) on securities available for sale
     (net of tax benefit)...................................        11       (118)
  Unearned compensation.....................................       (69)        --
  Retained earnings (deficit)...............................     1,755       (105)
                                                              --------   --------
          Total stockholders' equity........................    19,489     14,848
                                                              --------   --------
          Total liabilities and stockholders' equity........  $240,975   $180,806
                                                              ========   ========
</TABLE>
 
See accompanying notes to unaudited consolidated condensed financial statements.
 
                                       F-2
<PAGE>   99
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
             UNAUDITED CONSOLIDATED CONDENSED STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS ENDED
                                                                  JUNE 30,
                                                              ----------------
                                                               1997      1996
                                                              ------    ------
                                                               (IN THOUSANDS)
<S>                                                           <C>       <C>
Interest income and fees:
  Loans.....................................................  $8,164    $5,852
  Investment securities available for sale..................     711       703
  Federal funds sold........................................     237       156
                                                              ------    ------
          Total interest income and fees....................   9,112     6,711
                                                              ------    ------
Interest expense:
  Deposits..................................................   3,404     2,496
  Securities sold under agreement to repurchase.............     178        46
  Federal funds purchased...................................       1         3
  Other.....................................................      78         1
                                                              ------    ------
          Total interest expense............................   3,661     2,546
                                                              ------    ------
          Net interest income before provision for loan
           losses...........................................   5,451     4,165
Provision for loan losses...................................     303       186
                                                              ------    ------
          Net interest income after provision for loan
           losses...........................................   5,148     3,979
                                                              ------    ------
Noninterest income:
  Service charges on deposit accounts.......................     890       574
  Other income..............................................     240       213
                                                              ------    ------
          Total noninterest income..........................   1,130       787
                                                              ------    ------
Noninterest expense:
  Salaries and employee benefits............................   2,491     1,607
  Occupancy and equipment expense...........................     699       499
  Loss on sale of other real estate.........................      13        21
  Other expense.............................................   1,152       947
                                                              ------    ------
          Total noninterest expense.........................   4,355     3,074
                                                              ------    ------
     Income before income tax provision.....................   1,923     1,692
Income tax provision........................................     763       664
                                                              ------    ------
Net income..................................................  $1,160    $1,028
                                                              ======    ======
</TABLE>
 
See accompanying notes to unaudited consolidated condensed financial statements.
 
                                       F-3
<PAGE>   100
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           UNAUDITED CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                               SIX MONTHS ENDED
                                                                   JUNE 30,
                                                              ------------------
                                                               1997       1996
                                                              -------    -------
                                                                (IN THOUSANDS)
<S>                                                           <C>        <C>
Cash Flows from Operating Activities:
  Interest received.........................................    8,564      6,264
  Service charges received..................................      890        574
  Loan fees collected.......................................      601        428
  Other income received.....................................      240        216
  Interest paid.............................................   (3,589)    (2,484)
  Cash paid to suppliers and employees......................   (4,304)    (2,766)
  Income taxes paid.........................................     (974)      (731)
                                                              -------    -------
          Net cash provided by operating activities.........    1,428      1,501
                                                              -------    -------
Cash Flows from Investing Activities:
  Proceeds from sales and maturities of available for sale
     investment securities..................................    5,500     12,000
  Proceeds from the sale of other real estate...............      177         36
  Proceeds from sale of other assets........................       --         11
  Purchase of available for sale investment securities......  (13,016)   (16,446)
  Purchase of interest-bearing deposits in banks............       (6)        (5)
  Net increase in loans made to customers...................  (29,414)   (15,356)
  Purchase of bank premises and equipment...................     (989)    (3,038)
                                                              -------    -------
          Net cash used in investing activities.............  (37,748)   (22,798)
                                                              -------    -------
Cash Flows from Financing Activities:
  Net increase in demand deposit and savings accounts.......    7,160     14,153
  Net increase in time deposits.............................   26,336      9,893
  Net increase (decrease) in securities sold under
     agreements to repurchase...............................    2,514      5,337
  Net increase in federal funds purchased...................   (4,000)    (3,500)
  Proceeds from the sale of common stock....................    1,996       (750)
  Payment of dividends......................................     (758)        --
  Sale of treasury stock....................................       --         50
  Proceeds from note payable................................    1,500        600
                                                              -------    -------
          Net cash provided by financing activities.........   34,748     25,783
                                                              -------    -------
Net Increase (Decrease) in Cash and Cash Equivalents........   (1,572)     4,486
Cash and Cash Equivalents:
  Beginning of period.......................................   19,475      8,721
                                                              -------    -------
  End of period.............................................   17,903     13,207
                                                              =======    =======
</TABLE>
 
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
 
     The Company's subsidiary bank foreclosed on several properties that served
as collateral for certain real estate loans in the amount of $697,125 and
$-0-during the six months ended June 30, 1997 and 1996, respectively. These
properties were either sold during 1997 or 1996 or are included in other real
estate.
 
See accompanying notes to unaudited consolidated condensed financial statements.
 
                                       F-4
<PAGE>   101
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
         NOTES TO UNAUDITED CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
                    SIX MONTHS ENDED JUNE 30, 1997 AND 1996
 
1.  BASIS OF PRESENTATION
 
     The accompanying unaudited condensed consolidated financial statements have
been prepared in accordance with the instructions for interim financial
statements and do not include all of the information and footnotes required by
generally accepted accounting principles for complete financial statements.
These unaudited condensed consolidated financial statements should be read in
conjunction with the audited consolidated financial statements and notes thereto
for the years ended December 31, 1996 and 1995. In the opinion of the Company,
the financial statements reflect all adjustments which are of a normal recurring
nature and which are necessary to present fairly the financial position of the
Company as of June 30, 1997 and the results of operations for t he six months
ended June 30, 1997 and 1996, and cash flows for the six months ended June 30,
1997 and 1996. The results of operations for the six months ended June 30, 1997
are not necessarily indicative of the results which may be expected for the
entire fiscal year.
 
2.  STOCK OPTIONS
 
     In June, 1997, 40,500 non-qualified stock options were issued to Directors
and 11,500 stock options were issued to Executive officers at an exercise price
of $10 per share. As of June 30, 1997, the Directors options were fully vested
and the Executive officers options were 40% vested. $405,000 and $46,000 in
compensation expense was recorded in connection with the Directors and Executive
officers options, respectively. Additionally, $69,000 in unearned compensation
was recorded to reflect the unvested portion of the Executive officers options.
 
3.  SUBSEQUENT EVENT
 
     Effective August 22, 1997, the Company acquired all of the assets, related
liabilities and outstanding shares of C&G Properties of Orlando, Inc. These
acquisitions have been accounted for using the purchase method of accounting.
The initial purchase price was $1,190,000 issued in 59,500 shares of United
American Holding Corporation common stock. The purchase price was allocated as
follows:
 
<TABLE>
<S>                                                             <C>
Land........................................................    $1,894,150
Building....................................................       495,100
Mortgage payable............................................    (1,199,250)
                                                                ----------
                                                                $1,190,000
                                                                ==========
</TABLE>
 
                                       F-5
<PAGE>   102
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
The Board of Directors
United American Holding Corporation and Subsidiary
Orlando, Florida
 
     We have audited the accompanying consolidated balance sheets of United
American Holding Corporation and Subsidiary as of December 31, 1996 and 1995,
and the related consolidated statements of income, stockholders' equity, and
cash flows for each of the three years in the period ended December 31, 1996.
These consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.
 
     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
     In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of United
American Holding Corporation and Subsidiary as of December 31, 1996 and 1995,
and the results of their operations and their cash flows for each of the three
years in the period ended December 31, 1996, in conformity with generally
accepted accounting principles.
 
                                             /s/ COOPERS & LYBRAND L.L.P.
 
Orlando, Florida
January 27, 1997, except for
  Notes 5 and 11, as to which
  the date is August 22, 1997
 
                                       F-6
<PAGE>   103
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                     DECEMBER 31,
                                                              ---------------------------
                                                                  1996           1995
                                                              ------------   ------------
<S>                                                           <C>            <C>
                                         ASSETS
Cash and cash equivalents:
  Cash and due from banks...................................  $ 11,212,235   $  7,094,854
  Federal funds sold........................................     8,262,739      1,626,442
                                                              ------------   ------------
          Total cash and cash equivalents...................    19,474,974      8,721,296
Interest-bearing deposits in banks..........................       260,850        250,000
Investment securities available for sale (at aggregate fair
  value)....................................................    22,783,559     24,410,070
Loans receivable (net of allowance for loan losses, deferred
  loan fees, and unearned discounts of $2,960,566 in 1996
  and $2,436,943 in 1995)...................................   149,615,125    111,378,197
Bank premises and equipment, net............................     6,358,257      3,150,126
Accrued interest receivable.................................     1,182,768      1,101,457
Goodwill, net...............................................     2,139,403      2,206,260
Other real estate...........................................       569,129        636,586
Other assets................................................     2,497,150      2,017,795
                                                              ------------   ------------
          Total assets......................................  $204,881,215   $153,871,787
                                                              ============   ============
                          LIABILITIES AND STOCKHOLDERS' EQUITY
Deposits:
  Noninterest-bearing demand................................  $ 44,914,864   $ 30,023,112
  Interest-bearing:
     Demand.................................................    14,233,432     11,018,657
     Savings................................................    37,958,880     32,726,455
     Time, $100,000 and over................................    34,251,350     24,968,108
     Other time.............................................    45,057,332     35,620,349
                                                              ------------   ------------
          Total deposits....................................   176,415,858    134,356,681
Securities sold under agreements to repurchase..............     5,228,266        592,073
Federal funds purchased.....................................     4,000,000      3,500,000
Accrued interest payable....................................       387,064        297,013
Other liabilities...........................................     1,127,019        435,568
Note payable................................................     1,100,000             --
                                                              ------------   ------------
          Total liabilities.................................   188,258,207    139,181,335
                                                              ------------   ------------
Commitments and contingencies (Note 13)
Stockholders' equity:
  Common stock, par value $.01 and $2.50 per share;
     2,000,000 and 2,000,000 shares authorized; 1,520,500
     and 1,500,000 shares issued and outstanding at December
     31, 1996 and 1995, respectively........................        15,205      3,750,000
  Additional paid-in capital................................    15,261,156     11,321,361
  Unrealized gain (loss) on securities available for sale
     (net of tax (benefit) of $(2,739) in 1996 and $26,741
     in 1995)...............................................        (5,317)        51,910
  Retained earnings (deficit)...............................     1,351,964       (382,819)
                                                              ------------   ------------
                                                                16,623,008     14,740,452
  Less treasury stock, 5,000 shares at cost.................            --        (50,000)
                                                              ------------   ------------
          Total stockholders' equity........................    16,623,008     14,690,452
                                                              ------------   ------------
          Total liabilities and stockholders' equity........  $204,881,215   $153,871,787
                                                              ============   ============
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                       F-7
<PAGE>   104
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                       CONSOLIDATED STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                           --------------------------------------
                                                              1996          1995          1994
                                                           -----------   -----------   ----------
<S>                                                        <C>           <C>           <C>
Interest income and fees:
  Loans..................................................  $12,846,404   $ 9,953,552   $6,707,332
  Investment securities available for sale...............    1,474,625     1,170,528      467,821
  Federal funds sold.....................................      302,240       640,241      225,431
                                                           -----------   -----------   ----------
          Total interest income and fees.................   14,623,269    11,764,321    7,400,584
                                                           -----------   -----------   ----------
Interest expense:
  Deposits...............................................    5,283,643     4,396,903    2,530,652
  Securities sold under agreements to repurchase.........      189,659       100,582       22,776
  Federal funds purchased................................        3,639         2,521        1,848
  Other..................................................       35,871        57,870      211,381
                                                           -----------   -----------   ----------
          Total interest expense.........................    5,512,812     4,557,876    2,766,657
                                                           -----------   -----------   ----------
          Net interest income before provision for loan
            losses.......................................    9,110,457     7,206,445    4,633,927
Provision for loan losses................................      396,000       615,446      418,842
                                                           -----------   -----------   ----------
          Net interest income after provision for loan
            losses.......................................    8,714,457     6,590,999    4,215,085
                                                           -----------   -----------   ----------
Noninterest income:
  Service charges on deposit accounts....................    1,363,223       940,438      683,522
  Gain on sale of other real estate......................           --         3,308        8,068
  Other income...........................................      481,917       329,025      385,580
                                                           -----------   -----------   ----------
          Total noninterest income.......................    1,845,140     1,272,771    1,077,170
                                                           -----------   -----------   ----------
Noninterest expense:
  Salaries and employee benefits.........................    3,382,132     2,584,073    1,943,829
  Occupancy and equipment expense........................    1,064,586     1,109,696      786,840
  Loss on sale of other real estate......................       31,237        54,989           --
  Loss on sale of other assets...........................        1,360            --       16,170
  Other expense..........................................    1,986,592     1,728,025    1,736,661
                                                           -----------   -----------   ----------
          Total noninterest expense......................    6,465,907     5,476,783    4,483,500
                                                           -----------   -----------   ----------
          Income before income tax provision.............    4,093,690     2,386,987      808,755
Income tax provision.....................................    1,608,907       667,975       17,317
                                                           -----------   -----------   ----------
Net income...............................................  $ 2,484,783   $ 1,719,012   $  791,438
                                                           ===========   ===========   ==========
Earnings Per Share.......................................  $      1.66   $      1.24   $     0.94
Weighted Average Number of Common Shares Outstanding.....    1,500,021     1,389,508      840,800
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                       F-8
<PAGE>   105
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                  YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
<TABLE>
<CAPTION>
                                                                                          UNREALIZED
                                                                                          GAIN (LOSS)      RETAINED
                                  COMMON STOCK         ADDITIONAL     TREASURY STOCK     ON SECURITIES    EARNINGS/
                             -----------------------     PAID-IN     -----------------     AVAILABLE     (ACCUMULATED
                              SHARES      PAR VALUE      CAPITAL     SHARES     COST       FOR SALE        DEFICIT)
                             ---------   -----------   -----------   ------   --------   -------------   ------------
<S>                          <C>         <C>           <C>           <C>      <C>        <C>             <C>
Balance, December 31,
  1993.....................    840,800   $ 2,102,000   $ 6,389,551       --   $     --     $      --     $(2,893,269)
  Effect of change in
    accounting method for
    investments............         --            --            --       --         --        (6,063)             --
  Change in unrealized gain
    (loss).................         --            --            --       --         --      (147,057)             --
  Net income...............         --            --            --       --         --            --         791,438
                             ---------   -----------   -----------   ------   --------     ---------     -----------
Balance, December 31,
  1994.....................    840,800     2,102,000     6,389,551       --         --      (153,120)     (2,101,831)
  Sale of stock............    659,200     1,648,000     4,931,810       --         --            --              --
  Change in unrealized gain
    (loss).................         --            --            --       --         --       205,030              --
  Purchase of treasury
    stock..................         --            --            --   (5,000)   (50,000)           --              --
  Net income...............         --            --            --       --         --            --       1,719,012
                             ---------   -----------   -----------   ------   --------     ---------     -----------
Balance, December 31,
  1995.....................  1,500,000     3,750,000    11,321,361   (5,000)   (50,000)       51,910        (382,819)
  Sale of stock............     20,500        51,250       153,750       --         --            --              --
  Change in unrealized gain
    (loss).................         --            --            --       --         --       (57,227)             --
  Sale of treasury stock...         --            --            --    5,000     50,000            --              --
  Dividends paid ($.50 per
    share).................         --            --            --       --         --            --        (750,000)
  Change in par value......         --    (3,786,045)    3,786,045       --         --            --              --
  Net income...............         --            --            --       --         --            --       2,484,783
                             ---------   -----------   -----------   ------   --------     ---------     -----------
Balance, December 31,
  1996.....................  1,520,500   $    15,205   $15,261,156       --   $     --     $  (5,317)    $ 1,351,964
                             =========   ===========   ===========   ======   ========     =========     ===========
 
<CAPTION>
 
                                 TOTAL
                             STOCKHOLDERS'
                                EQUITY
                             -------------
<S>                          <C>
Balance, December 31,
  1993.....................   $ 5,598,282
  Effect of change in
    accounting method for
    investments............        (6,063)
  Change in unrealized gain
    (loss).................      (147,057)
  Net income...............       791,438
                              -----------
Balance, December 31,
  1994.....................     6,236,600
  Sale of stock............     6,579,810
  Change in unrealized gain
    (loss).................       205,030
  Purchase of treasury
    stock..................       (50,000)
  Net income...............     1,719,012
                              -----------
Balance, December 31,
  1995.....................    14,690,452
  Sale of stock............       205,000
  Change in unrealized gain
    (loss).................       (57,227)
  Sale of treasury stock...        50,000
  Dividends paid ($.50 per
    share).................      (750,000)
  Change in par value......            --
  Net income...............     2,484,783
                              -----------
Balance, December 31,
  1996.....................   $16,623,008
                              ===========
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                       F-9
<PAGE>   106
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                       ------------------------------------------
                                                           1996           1995           1994
                                                       ------------   ------------   ------------
<S>                                                    <C>            <C>            <C>
Cash Flows from Operating Activities:
  Interest received..................................  $ 13,865,567   $ 10,764,183   $  6,870,246
  Service charges received...........................     1,363,223        940,438        683,522
  Loan fees collected................................       870,340        540,476        415,659
  Other income received..............................       472,528        329,025        385,580
  Interest paid......................................    (5,422,761)    (4,498,035)    (2,733,089)
  Cash paid to suppliers and employees...............    (5,949,423)    (6,314,840)    (4,004,561)
  Income taxes paid..................................    (1,384,000)      (740,000)       (34,000)
  Income tax refund received.........................            --             --        693,516
                                                       ------------   ------------   ------------
          Net cash provided by operating
            activities...............................     3,815,474      1,021,247      2,276,873
                                                       ------------   ------------   ------------
Cash Flows from Investing Activities:
  Proceeds from maturity of interest-bearing
     deposits........................................            --             --        400,000
  Proceeds from sales and maturities of available for
     sale investment securities......................    31,011,450     20,500,000      6,800,000
  Proceeds from the sale of other real estate........        36,220        638,036      5,447,960
  Proceeds from sale of other assets.................        11,000             --         17,000
  Proceeds from the disposition of bank equipment....            --          4,200             --
  Purchase of available for sale investment
     securities......................................   (29,468,618)   (31,537,073)   (11,414,060)
  Insurance proceeds for loss of bank equipment......            --          4,685             --
  Purchase of interest-bearing deposits in banks.....       (10,850)      (200,000)            --
  Net increase in loans made to customers............   (38,825,430)   (28,959,011)   (27,141,529)
  Purchase of bank premises and equipment............    (3,615,938)    (1,384,036)      (882,360)
                                                       ------------   ------------   ------------
          Net cash used in investing activities......   (40,862,166)   (40,933,199)   (26,772,989)
                                                       ------------   ------------   ------------
Cash Flows from Financing Activities:
  Net increase in demand deposit and savings
     accounts........................................    23,338,952     13,978,941     12,328,655
  Net increase in time deposits......................    18,720,225     13,015,030     14,428,921
  Net increase (decrease) in securities sold under
     agreements to repurchase........................     4,636,193       (831,843)     1,423,916
  Net increase in federal funds purchased............       500,000      3,500,000             --
  Proceeds from the sale of common stock.............       205,000      6,579,810             --
  Payment of dividends...............................      (750,000)            --             --
  Purchase of treasury stock.........................            --        (50,000)            --
  Sale of treasury stock.............................        50,000             --             --
  Principal payments on notes payable................            --     (2,378,315)      (180,528)
  Proceeds from note payable.........................     1,100,000             --             --
                                                       ------------   ------------   ------------
          Net cash provided by financing
            activities...............................    47,800,370     33,813,623     28,000,964
                                                       ------------   ------------   ------------
Net Increase (Decrease) in Cash and Cash
  Equivalents........................................    10,753,678     (6,098,329)     3,504,848
</TABLE>
 
                                      F-10
<PAGE>   107
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
              CONSOLIDATED STATEMENTS OF CASH FLOWS -- (CONTINUED)
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                       ------------------------------------------
                                                           1996           1995           1994
                                                       ------------   ------------   ------------
<S>                                                    <C>            <C>            <C>
Cash and Cash Equivalents:
  Beginning of year..................................     8,721,296     14,819,625     11,314,777
                                                       ------------   ------------   ------------
  End of year........................................  $ 19,474,974   $  8,721,296   $ 14,819,625
                                                       ============   ============   ============
Reconciliation of Net Income to Net Cash Provided by
  Operating Activities:
     Net income......................................  $  2,484,783   $  1,719,012   $    791,438
                                                       ------------   ------------   ------------
     Adjustments to reconcile net income to net cash
       provided by operating activities:
       Depreciation and amortization.................       473,822        438,031        384,375
       Gain on sale of investments...................        (4,475)            --             --
       Gain on sale of bank equipment................        (4,914)        (2,606)            --
       Loss on sale of other real estate.............        31,237         51,681         (8,068)
       Loss on other assets..........................            --             --         16,170
       Deferred income taxes.........................      (118,531)       (10,768)            --
       Provision for loan losses.....................       396,000        615,446        418,842
       Amortization of premiums and accretion of
          discounts on investment securities.........         1,447       (145,829)       (22,529)
       Increase in deferred loan fees................       192,502         65,803         37,100
       Increase in accrued interest receivable.......       (81,311)      (436,431)      (130,500)
       Decrease (increase) in other assets...........      (336,588)    (1,571,305)       656,027
       Increase in accrued interest payable..........        90,051         59,841         15,015
       Increase in other liabilities.................       691,451        238,372        119,003
                                                       ------------   ------------   ------------
          Total adjustments..........................     1,330,691       (697,765)     1,485,435
                                                       ------------   ------------   ------------
Net Cash Provided by Operating Activities............  $  3,815,474   $  1,021,247   $  2,276,873
                                                       ============   ============   ============
</TABLE>
 
Supplemental Schedule of Noncash Investing and Financing Activities:
 
The Company's subsidiary bank foreclosed on several properties that served as
collateral for certain real estate loans in the amount of $-0-, $237,541 and
$98,462 during 1996, 1995 and 1994, respectively. These properties were either
sold during 1996, 1995 or 1994 or are included in other real estate at December
31.
 
          See accompanying notes to consolidated financial statements.
 
                                      F-11
<PAGE>   108
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                  YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
 
1.  ORGANIZATION
 
     United American Holding Corporation (the "Company") is a one-bank holding
company which owns 100% of the outstanding shares of United American Bank of
Central Florida (the "Bank"). The Bank, which commenced operations in 1985, is a
state-chartered bank headquartered in Orlando, Florida. The Bank's deposits are
insured by the Federal Deposit Insurance Corporation. The Bank is subject to
certain state regulations which, among other provisions, impose certain
limitations on the payment of dividends to its parent.
 
2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
     Method of Consolidation.  The accounting and reporting policies of the
Company are in accordance with generally accepted accounting principles, and
conform to general practices within the banking industry. In consolidation, all
significant intercompany accounts and transactions are eliminated.
 
     Cash and Cash Equivalents.  Cash and cash equivalents include cash on hand,
amounts due from banks and federal funds sold. Generally, federal funds
purchased and sold are for one day periods.
 
     Investment Securities.  Investments in debt and equity securities are
classified in three categories and accounted for as follows:
 
          Securities Held to Maturity.  Securities that management has the
     intent and the Bank has the ability at the time of purchase to hold until
     maturity are classified as securities held to maturity. Securities in this
     category are carried at amortized cost. Sales of securities classified as
     held to maturity are prohibited except under rare circumstances. If a
     security has a decline in fair value below its amortized cost that is other
     than temporary, then the security will be written down to its new cost
     basis by recording a loss in the statements of operations.
 
          Discounts and premiums on securities held to maturity are accreted or
     amortized to income using the interest method over the remaining
     contractual life of the security, adjusted for actual prepayments.
 
          Securities Available for Sale.  Securities to be held for indefinite
     periods of time and not intended to be held to maturity are classified as
     available for sale. Assets included in this category are those assets that
     management intends to use as part of its asset/liability management
     strategy and that may be sold in response to changes in interest rates,
     resultant prepayment risk and other factors related to interest rate and
     resultant prepayment risk changes. Securities available for sale are
     recorded at fair value. Both unrealized gains and losses on securities
     available for sale, net of taxes, are included as a separate component of
     shareholders' equity in the balance sheets until these gains or losses are
     realized. If a security has a decline in fair value that is other than
     temporary, then the security will be written down to its fair value by
     recording a loss in the statements of operations. Gains and losses on the
     sale of securities are computed by specific identification. Upon
     disposition, unrealized gains or losses previously reported as a component
     of shareholders' equity are recognized and included in current earnings.
 
          Trading Securities.  Securities that are held principally for the
     purpose of selling in the near future are classified as trading securities.
     These securities are recorded at fair value. Both unrealized gains and
     losses are included in the statement of operations. The Bank currently has
     no securities classified as trading securities.
 
     Goodwill.  Goodwill, resulting from the business combination of the
companies whose financial statements are consolidated herein, is amortized using
the straight-line method over forty years.
 
     Loans and Allowance for Loan Losses.  Loans are stated at the amount of
unpaid principal, reduced by deferred loan fees, allowance for loan losses and
purchase discounts. Loan origination fees, net of direct loan
 
                                      F-12
<PAGE>   109
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
costs, are amortized to interest income as an adjustment of yield over the life
of the loan. Interest is accrued on a simple-interest basis. Loans are charged
to the allowance for loan losses at such time as management considers them
uncollectible in the normal course of business. Accrual of interest on past due
loans including impaired loans is discontinued when management believes, after
considering economic and business conditions and collection efforts, the
borrower's financial condition is such that collection of interest is doubtful.
Classification of a loan as nonaccrual is not necessarily indicative of a
potential loss of principal. Collections of interest and principal on
non-accrual loans are generally applied as reductions to principal outstanding.
 
     The allowance for loan losses is established through a provision for loan
losses charged to operations. Loans are charged against the allowance for loan
losses when management believes that the collectibility of the principal is
unlikely. The allowance is an amount that management believes will be adequate
to absorb possible losses on existing loans that may become uncollectible, based
on evaluations of the collectibility of loans and prior loan loss experience.
The evaluations take into consideration such factors as changes in the nature
and volume of the loan portfolio, overall portfolio quality, review of specific
problem loans, and current economic conditions that may affect the borrowers'
ability to pay.
 
     A loan is considered impaired, based on current information and events, if
it is probable that the Bank will be unable to collect the scheduled payments of
principal or interest when due according to the contractual terms of the loan
agreement. The measurement of impaired loans is generally based on the present
value of expected future cash flows discounted at the historical effective
interest rate, except that all collateral-dependent loans are measured for
impairment based on the fair value of the collateral.
 
     Bank Premises and Equipment.  Land is stated at cost, and depreciable
assets are stated at cost, less accumulated depreciation. Depreciation is
provided on the straight-line method over the estimated useful lives of the
related assets. Maintenance and repairs are charged to expense as incurred and
major renewals and betterments are capitalized. Gains or losses are credited or
charged to income upon disposition.
 
     Other Real Estate.  Property acquired by foreclosure is transferred to
other real estate at the lower of the balance of the loan on the property at the
date of transfer, or fair value net of estimated selling costs. Adjustments made
to the value at time of transfer are charged to the allowance for loan losses.
After transfer, the property is carried at the lower of cost (fair value or
balance of loan) or fair value less estimated costs to sell. Such determinations
are made on an individual asset basis. Subsequent decreases in value are
recognized as a valuation allowance. Likewise, any increases in value, up to the
carrying value at date of transfer, are offset against the valuation allowance.
Increases or decreases in the valuation allowance are charged or credited to
operations.
 
     Costs relating to holding the property are charged to operations as
incurred. Costs incurred for development or improvement of the property are
capitalized. Gains and losses on the disposition of other real estate are
charged to operations as incurred.
 
     Income Taxes.  Income taxes are provided for the tax effects of
transactions reported in the financial statements and consist of taxes currently
due plus deferred taxes resulting from temporary differences. Such temporary
differences result from differences in the carrying value of assets and
liabilities for tax and financial reporting purposes. The deferred tax assets
and liabilities represent the future tax consequences of those differences,
which will either be taxable or deductible when the assets and liabilities are
recovered or settled. Valuation allowances are established when necessary to
reduce deferred tax assets to the amount expected to be realized. Income tax
expense is the tax payable for the period and the change during the period in
deferred tax assets and liabilities.
 
     Net Income Per Share.  Net income per share is based on the average number
of common shares outstanding and any dilutive common stock equivalent for each
period using the treasury stock method. Fully diluted per share data are not
materially different from the primary per share data presented.
 
                                      F-13
<PAGE>   110
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Estimates.  The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
     Reclassifications.  Certain prior year amounts have been reclassified from
previous presentations to conform to 1996 presentations. Such reclassifications
had no impact on total assets, equity, net income or total cash flow balances
previously reported.
 
     Statement of Cash Flows.  For purposes of reporting cash flows, cash and
cash equivalents include cash and due from banks and federal funds sold.
 
3.  INVESTMENT SECURITIES
 
     The amortized cost and approximate fair value of investment securities at
December 31, 1996 and 1995 are as follows:
 
<TABLE>
<CAPTION>
                                                            DECEMBER 31, 1996
                                           ---------------------------------------------------
                                                           GROSS        GROSS
                                            AMORTIZED    UNREALIZED   UNREALIZED      FAIR
                                              COST         GAINS        LOSSES        VALUE
                                           -----------   ----------   ----------   -----------
<S>                                        <C>           <C>          <C>          <C>
Available for Sale:
  U.S. Treasury and obligations of U.S.
     Government corporations and
     agencies............................  $22,472,266    $36,197      $(44,254)   $22,464,209
  Federal reserve bank stock.............      319,350         --            --        319,350
                                           -----------    -------      --------    -----------
          Total..........................  $22,791,616    $36,197      $(44,254)   $22,783,559
                                           ===========    =======      ========    ===========
</TABLE>
 
<TABLE>
<CAPTION>
                                                            DECEMBER 31, 1995
                                           ---------------------------------------------------
                                                           GROSS        GROSS
                                            AMORTIZED    UNREALIZED   UNREALIZED      FAIR
                                              COST         GAINS        LOSSES        VALUE
                                           -----------   ----------   ----------   -----------
<S>                                        <C>           <C>          <C>          <C>
Available for Sale:
  U.S. Treasury and obligations of U.S.
     Government corporations and
     agencies............................  $24,030,069    $79,977      $ (1,326)   $24,108,720
  Federal reserve bank stock.............      301,350         --            --        301,350
                                           -----------    -------      --------    -----------
          Total..........................  $24,331,419    $79,977      $ (1,326)   $24,410,070
                                           ===========    =======      ========    ===========
</TABLE>
 
     The amortized cost and approximate fair value of investment securities at
December 31, 1996, by contractual maturity, are shown below. Expected maturities
will differ from contractual maturities because borrowers may have the right to
call or prepay obligations with or without call or prepayment penalties.
 
<TABLE>
<CAPTION>
                                                                  DECEMBER 31, 1996
                                                              -------------------------
                                                               AMORTIZED       FAIR
                                                                 COST          VALUE
                                                              -----------   -----------
<S>                                                           <C>           <C>
Available for sale:
  Due in one year or less...................................  $11,504,713   $11,518,159
  Due after one year through five years.....................   10,967,553    10,946,050
                                                              -----------   -----------
                                                               22,472,266    22,464,209
Federal reserve bank stock..................................      319,350       319,350
                                                              -----------   -----------
                                                              $22,791,616   $22,783,559
                                                              ===========   ===========
</TABLE>
 
                                      F-14
<PAGE>   111
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Proceeds from the sale of investments during 1996, 1995 and 1994 were
$4,998,000, $0 and $300,000, respectively. Proceeds from the maturity of
investments during 1996, 1995 and 1994 were $15,500,000, $20,500,000 and
$6,500,000, respectively.
 
     Investment securities with amortized cost of $10,984,185 and $4,500,706 and
with fair values of approximately $10,964,860 and $4,510,305 at December 31,
1996 and 1995, respectively, were pledged as collateral for certain deposits.
 
4.  LOANS AND ALLOWANCE FOR LOAN LOSSES
 
     A summary of loan distribution at December 31, 1996 and 1995 follows:
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                            ---------------------------
                                                                1996           1995
                                                            ------------   ------------
<S>                                                         <C>            <C>
Commercial................................................  $ 36,634,162   $ 27,132,027
Construction..............................................    15,187,733      9,989,645
Real estate...............................................    91,388,386     71,030,925
Installment...............................................     8,755,026      5,339,177
                                                            ------------   ------------
                                                             151,965,307    113,491,774
Overdrafts................................................       610,384        323,366
Unearned discount.........................................       (23,205)       (54,500)
Deferred loan fees........................................      (574,945)      (382,443)
                                                            ------------   ------------
                                                             151,977,541    113,378,197
Allowance for loan losses.................................    (2,362,416)    (2,000,000)
                                                            ------------   ------------
                                                            $149,615,125   $111,378,197
                                                            ============   ============
</TABLE>
 
     Changes in the allowance for loan losses for 1996, 1995 and 1994 are
summarized as follows:
 
<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                     ------------------------------------
                                                        1996         1995         1994
                                                     ----------   ----------   ----------
<S>                                                  <C>          <C>          <C>
Allowance, beginning of year.......................  $2,000,000   $1,492,730   $  866,000
  Provision charged to expense ....................     396,000      615,446      418,842
  Recoveries on loans previously charged off.......      92,118       12,414      257,920
  Loans charged off................................    (125,702)    (120,590)     (50,032)
                                                     ----------   ----------   ----------
Allowance, end of year.............................  $2,362,416   $2,000,000   $1,492,730
                                                     ==========   ==========   ==========
</TABLE>
 
     At December 31, 1996 and 1995, the recorded investment in loans for which
impairment has been recognized totalled $442,579 and $542,291, respectively, of
which $219,774 and $0, respectively, related to such loans with no valuation
allowance because the fair value of the collateral is greater than the loan, and
$222,805 and $542,291, respectively, related to loans with a corresponding
valuation allowance of $82,635 and $60,135, respectively. The average recorded
investment in impaired loans during 1996 and 1995 was $492,435 and $271,146,
respectively.
 
     Loans for which interest has been discontinued totalled $442,579 and
$542,291 at December 31, 1996 and 1995, respectively.
 
     Interest income that would have been earned on these loans under the
original terms was approximately $164,000 and $191,000 for the years ended
December 31, 1996 and 1995, respectively. Interest income on impaired loans of
approximately $12,000 and $5,000 was recognized for cash payments received in
1996 and 1995, respectively.
 
                                      F-15
<PAGE>   112
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
5.  BANK PREMISES AND EQUIPMENT
 
     A summary of bank premises and equipment at December 31, 1996 and 1995 is
as follows:
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                             -------------------------
                                                                1996          1995
                                                             ----------    -----------
<S>                                                          <C>           <C>
Leasehold improvements.....................................  $  588,069    $ 1,642,415
Furniture, fixtures and equipment..........................   2,349,546      1,673,980
Vehicles...................................................      60,403        108,439
Buildings..................................................   3,677,232        417,195
Land.......................................................   1,500,000        275,000
                                                             ----------    -----------
                                                              8,175,250      4,117,029
Less accumulated depreciation and amortization.............  (1,911,933)    (1,572,436)
                                                             ----------    -----------
                                                              6,263,317      2,544,593
Plus construction in progress..............................      94,940        605,533
                                                             ----------    -----------
                                                             $6,358,257    $ 3,150,126
                                                             ==========    ===========
</TABLE>
 
     Depreciation and amortization expense on bank premises and equipment for
the years ended December 31, 1996, 1995 and 1994 was $401,721, $371,175 and
$310,881, respectively.
 
     In December 1996, the Company's Board of Directors initiated a plan to
acquire all of the outstanding shares of C&G Properties of Orlando, Inc., which
owns the Company's main office and adjacent property net of a mortgage, and is
owned, in part, by certain directors of the Company. The purchase price was to
be paid in Company stock based on appraised values of the properties and an
estimate of the stock's fair value. In April 1997, the terms of the purchase
($1,190,000 net value and 59.500 shares) were set and approved. The transaction
closed on August 22, 1997.
 
6.  NOTE PAYABLE
 
     The note payable at December 31, 1996 is to an unrelated financial
institution and bears interest at the lender's base rate (8.25% at December 31,
1996). Interest is payable monthly with principal payable upon demand. The loan
agreement contains certain restrictive covenants including requirements related
to the maintenance of certain financial ratios.
 
7.  SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE
 
     The Bank enters into sales of securities under agreements to repurchase.
Repurchase agreements are treated as financings, and the obligations to
repurchase securities sold are reflected as a liability in the balance sheet.
The dollar amount of securities underlying the agreements remains in the asset
accounts. The securities sold under repurchase agreements remain in the custody
of a third-party trustee.
 
     Information related to the Bank's securities sold under repurchase
agreements at December 31, 1996 and 1995 is presented below:
 
<TABLE>
<CAPTION>
                                                                 1996          1995
                                                              ----------    ----------
<S>                                                           <C>           <C>
U.S. Treasury and obligations of U.S. Government
  corporations and agencies:
  Carrying value............................................  $8,484,730    $1,500,000
  Fair value................................................   8,472,660     1,501,865
  Repurchase agreements.....................................  $5,228,266    $  592,073
  Weighted average interest rate............................        4.69%         5.48%
</TABLE>
 
                                      F-16
<PAGE>   113
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  INTEREST ON DEPOSITS
 
     A summary of interest on deposits is as follows:
 
<TABLE>
<CAPTION>
                                                    1996          1995          1994
                                                 ----------    ----------    ----------
<S>                                              <C>           <C>           <C>
Interest-bearing demand........................  $1,233,180    $1,071,743    $  753,155
Savings........................................      51,302        39,832        36,771
Time...........................................   3,999,161     3,285,328     1,740,726
                                                 ----------    ----------    ----------
                                                 $5,283,643    $4,396,903    $2,530,652
                                                 ==========    ==========    ==========
</TABLE>
 
     At December 31, 1996, the scheduled maturities of time deposits are as
follows:
 
<TABLE>
<S>                                                           <C>
1997........................................................  $66,286,000
1998........................................................    7,649,000
1999........................................................    2,794,000
Thereafter..................................................    2,580,000
                                                              -----------
                                                              $79,309,000
                                                              ===========
</TABLE>
 
9.  OPERATING EXPENSES
 
     Components of other operating expense that individually exceeded $85,000 in
any of the three years ending December 31, 1996 are as follows:
 
<TABLE>
<CAPTION>
                                                           1996       1995       1994
                                                         --------   --------   --------
<S>                                                      <C>        <C>        <C>
Data processing........................................  $125,441   $101,380   $ 63,110
Regulatory fees........................................    37,538    237,602    266,999
Stationery and supplies................................   160,908    104,666     99,375
Director fees..........................................    95,100     68,400     36,000
Advertising and publicity..............................   463,002    356,588    199,759
Legal and professional.................................   226,866    185,495    378,425
Repossession expense...................................  $ 18,497   $ 27,717   $ 98,392
</TABLE>
 
10.  INCOME TAXES
 
     The components of the net deferred tax asset recognized in the accompanying
balance sheet and included in other assets at December 31, 1996 and 1995 are as
follows:
 
<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                              -------------------
                                                                1996       1995
                                                              --------   --------
<S>                                                           <C>        <C>
Deferred tax asset..........................................  $319,485   $130,882
Deferred tax liability......................................        --    (26,741)
                                                              --------   --------
                                                              $319,485   $104,141
                                                              ========   ========
</TABLE>
 
     The types of temporary differences between the tax bases of assets and
liabilities and their financial statement reporting amounts are attributable
principally to depreciation methods, loan loss provisions, and the fair values
of investments.
 
                                      F-17
<PAGE>   114
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The provision for income taxes for the years ended December 31, 1996, 1995
and 1994 consist of the following:
 
<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31,
                                                     ---------------------------------
                                                        1996         1995       1994
                                                     ----------    --------    -------
<S>                                                  <C>           <C>         <C>
Current:
  Federal..........................................  $1,490,031    $678,281    $23,710
  State............................................     237,407         462         --
                                                     ----------    --------    -------
                                                      1,727,438     678,743     23,710
                                                     ----------    --------    -------
Deferred:
  Federal..........................................    (104,235)        462     (6,393)
  State............................................     (14,296)    (11,230)        --
                                                     ----------    --------    -------
                                                       (118,531)    (10,768)    (6,393)
                                                     ----------    --------    -------
                                                     $1,608,907    $667,975    $17,317
                                                     ==========    ========    =======
</TABLE>
 
     For the years ended December 31, 1996, 1995 and 1994, a reconciliation of
expected federal tax expense or benefit (calculated by applying appropriate
statutory federal income tax rates) to the net income tax expense or benefit
included in the accompanying statements of operations is as follows:
 
<TABLE>
<CAPTION>
                                     1996                 1995                1994
                               -----------------    ----------------    ----------------
                                 AMOUNT       %      AMOUNT       %      AMOUNT       %
                               ----------    ---    ---------    ---    ---------    ---
<S>                            <C>           <C>    <C>          <C>    <C>          <C>
Expected expense using
  statutory federal rates....  $1,391,855    34%    $ 811,576    34%    $ 274,977     34%
  Increase (decrease) in
     valuation allowance.....          --    --      (204,883)   (9)     (255,243)   (32)
State tax, net of federal....     130,321     3         5,219    --            --     --
Other, net...................      86,731     2        56,063     3        (2,417)    --
                               ----------    --     ---------    --     ---------    ---
Total income tax expense.....  $1,608,907    39%    $ 667,975    28%    $  17,317      2%
                               ==========    ==     =========    ==     =========    ===
</TABLE>
 
     The Company utilized approximately $1,586,000 and $776,000 in federal net
operating loss carryforwards and $1,591,000 and $2,708,000 in state net
operating loss carryforwards for income tax purposes for the years ended
December 31, 1995 and 1994, respectively. All available federal and state net
operating loss carryforwards were used in 1995.
 
11.  STOCK OPTIONS AND STOCK WARRANTS
 
     Stock Option Plans.  Effective February 1, 1994, the stockholders of the
Company approved a Directors' Stock Option Plan and an Officers' and Employees'
Stock Option Plan. The Bank has adopted the disclosure-only provisions of
Statement of Financial Accounting Standards No. 123, Accounting for Stock-Based
Compensation.
 
     Accordingly, no compensation cost has been recognized for the stock option
plans. Had compensation cost been determined based on the fair value at the
grant date for awards in 1995 and 1996 consistent with the provisions of SFAS
No. 123, the effect on net income would have been insignificant.
 
     Under the plans, as amended and restated, options for an aggregate of
138,700 shares of the Company's common stock have been authorized to be granted
to directors, officers and employees. Under the Directors' Plan, the option
price of each share of stock is $10.00, less any cash dividends paid between
February 1, 1994 and the date of exercise; but not less than par value. Options
granted under the Officers' and Employees' Plan are at the greater of $10.00 or
the fair market value on the date of grant. The options granted under the
 
                                      F-18
<PAGE>   115
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
Directors' Stock Option Plan are exercisable at any time within ten years of
their date of grant. The options granted under the Officers' and Employees'
Stock Option Plan are exercisable 20%, 40%, 60%, 80% and 100% during the second,
third, fourth, fifth and sixth year, respectively, after the date of grant. No
options may be exercised more than ten years after the date of grant.
 
     The following table summarizes stock option activity for the years
presented:
 
<TABLE>
<CAPTION>
                                                               NUMBER
                                                                 OF       WEIGHTED-AVERAGE
                                                               SHARES      EXERCISE PRICE
                                                              ---------   ----------------
<S>                                                           <C>         <C>
Under option, December 31, 1994.............................    90,000         $10.00
  Granted...................................................    30,500          10.00
                                                               -------
Under option, December 31, 1995.............................   120,500          10.00
  Granted...................................................    18,000          10.00
                                                               -------
Under option, December 31, 1996.............................   138,500
                                                               =======
</TABLE>
 
     At December 31, 1996 and 1995, respectively, there were 200 and 8,200
shares available for future option grants, and 82,700 and 58,500 options were
exercisable.
 
     In 1995, the Company sold 659,200 shares of common stock which were
accompanied by 220,100 nontransferable common stock purchase warrants. Each
warrant allows the shareholder to purchase one share of Company stock on or
before July 1, 1997 for an amount equal to $10.
 
     During 1996, 20,500 warrants were exercised, leaving 199,600 outstanding at
December 31, 1996.
 
     In November 1996, options for an additional 40,500 shares, exercisable at
$10 per share, were approved by the Compensation Committee of the Board of
Directors to be granted to directors in June 1997. The additional shares were to
be allocated to the directors based on total shares owned by each after
consideration of the exercise of the above-mentioned warrants. In June 1997, the
options were granted and compensation expense of $405,000 was recorded.
 
12.  EMPLOYEE BENEFIT PLANS
 
     401(k) Savings Plan.  The Bank has adopted a Section 401(k) savings plan
(the Plan) covering substantially all employees of the Bank. Under provisions of
the Plan, employees may contribute up to 15% of their compensation on a pre-tax
basis, subject to limits specified in the Internal Revenue Code. The Bank may
make, at the discretion of the Board of Directors and within various limitations
specified by the Internal Revenue Code, matching contributions of the employees'
contributions. The Bank's contribution under the Plan was approximately
$104,342, $92,100 and $36,400 for the years ended December 31, 1996, 1995 and
1994, respectively.
 
     Supplementary Executive Retirement Benefit Plan.  During 1995, the Bank
implemented a split-dollar life insurance plan for the benefit of certain
officers. This program is designed so that the liabilities for benefits are
funded by life insurance policies owned by the Bank and it is expected that the
Bank's portion of the life insurance proceeds will offset the cost of the
program.
 
     Deferred Compensation Plan.  Effective January 1, 1996, the Bank
established a deferred compensation plan for the benefit of certain qualified
employees. The plan entitles the participants to elect to defer a portion of
their compensation until such time as certain events requiring distribution of
amounts previously deferred occur. The plan provides for an annual matching
contribution by the Bank up to a maximum annual amount of $10,000 per
participant. Qualified employees eligible to participate in the program include
those management employees at the senior vice president level or higher that
have been designated by the Board of Directors of the Bank. The Bank's
contribution under the plan was $20,000 for the year ended December 31, 1996.
 
                                      F-19
<PAGE>   116
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
13.  COMMITMENTS AND CONTINGENCIES
 
     Lease Commitments.  The Bank leases two of its branches, the South Orlando
and Apopka branches, under operating leases which expire at various periods
through the year 2011. Future minimum lease payments, by year and in the
aggregate, under all operating leases as of December 31, 1996 are as follows:
 
<TABLE>
<CAPTION>
YEAR ENDING
DECEMBER 31,
- ------------
<S>                                                             <C>
1997........................................................    $  136,000
1998........................................................       136,000
1999........................................................       136,000
2000........................................................       136,000
2001........................................................       136,000
Thereafter..................................................     1,134,000
                                                                ----------
                                                                $1,814,000
                                                                ==========
</TABLE>
 
     Minimum payments have not been reduced by total minimum sublease rentals of
$33,000 due in the next five years under noncancellable subleases.
 
     Rent expense was approximately $115,000, $340,000 and $288,000 for 1996,
1995 and 1994, respectively.
 
     Financial Instruments with Off-Balance Sheet Risks.  The Bank is a party to
financial instruments with off-balance sheet risk in the normal course of its
business to meet the financing needs of its customers and to reduce its own
exposure to fluctuations in interest rates. These financial instruments include
loan commitments and standby letters of credit. These instruments involve, to
varying degrees, elements of credit and interest rate risk in excess of the
amount recognized in the financial statements. The Bank has no financial
instruments with off-balance sheet risk that are held for trading purposes.
 
     The Bank's exposure to credit loss in the event of nonperformance by the
other party to its financial instrument for loan commitments and standby letters
of credit is represented by the contracted amount of those instruments. The Bank
uses the same credit policies in making commitments and conditional obligations
as it does for on-balance sheet instruments.
 
     Standby letters of credit are conditional commitments issued by the Bank to
guarantee the performance of a customer to a third party. The credit risk
involved in issuing letters of credit is essentially the same as that involved
in extending loan facilities to customers. The collateral varies for those
commitments, but may include a certificate of deposit held by the bank if
collateral is deemed necessary.
 
     At December 31, 1996 and 1995, the Bank has commitments to customers of
approximately $1,150,000 and $1,200,000 for standby letters of credit and
$43,292,000 and $27,100,000 for unfunded firm loan commitments, respectively.
Since many of these commitments may expire without being drawn upon, the total
commitment amount does not necessarily represent future cash requirements.
 
     The Bank evaluates each customer's credit worthiness on a case-by-case
basis. It is the Bank's policy to obtain adequate collateral in accordance with
internal lending guidelines on all loans. Uncollateralized loans are made based
upon the judgment of Bank management in accordance with authorized lending
limits, Bank lending policies and credit criteria. Collateral on the Bank's
loans depends on the nature of the loan, and is principally commercial and
residential real property and other commercial tangible assets (inventory and
equipment). It is the Bank's policy to perfect its interest in the collateral
through the filing of mortgage deeds and security agreements with uniform
commercial code (UCC) recordings, or taking physical possession of the
collateral, if appropriate. Bank management believes it has access to collateral
in the event of loan default to minimize its credit risk.
 
                                      F-20
<PAGE>   117
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     As of December 31, 1996 and 1995, the Bank has approximately $68,043,000
and $42,540,000, respectively, in fixed rate loans with interest rates ranging
from 5.89% to 14.75% and 5.65% to 15%, respectively, and $14,793,000 and
$7,524,000, respectively, in variable rate loans with interest rate ceilings
ranging from 10.75% to 13.5% and 9.5% to 13.5%, respectively.
 
     Regulatory Matters.  The Bank is required by federal banking regulations to
maintain minimum levels of capital measured by ratios of capital to
"risk-weighted" assets, as defined by the banking regulations. Failure to meet
minimum capital requirements can initiate certain mandatory and possibly
additional discretionary actions by regulators that, if undertaken, could have a
direct material effect on the Bank's financial statements. Under capital
adequacy guidelines and the regulatory framework for prompt corrective action,
the Bank must meet specific capital guidelines that involve quantitative
measures of the Bank's assets, liabilities, and certain off-balance sheet items
as calculated under regulatory accounting practices. The Bank's capital amounts
and classification are also subject to qualitative judgments by the regulators
about components, risk weightings, and other factors.
 
     As of December 31, 1996, the most recent regulatory notification
categorized the Bank as well capitalized. To be categorized as well capitalized,
the Bank must maintain a minimum "Tier 1 capital" ratio of 6.00%, a minimum
"total capital" ratio of 10.00%, and a minimum "Tier 1 leverage capital" ratio
of 5.00%. There are no conditions or events since that notification that
management believes have changed the Bank's category. At December 31, 1996 and
1995, the Bank's "Tier 1 capital" was $15,246,000 and $12,214,000, respectively,
the Bank's "Tier 1" ratio was 8.78% and 9.70%, respectively, the Bank's "total
capital" was $17,416,000 and $13,788,000, respectively, the Bank's "total
capital" ratio was 10.03% and 10.95%, respectively, the Bank's "Tier I leverage
capital" was $15,246,000 and $12,214,000, respectively, and the Bank's "Tier I
leverage ratio" was 7.53% and 8.06%, respectively.
 
14.  SIGNIFICANT GROUP CONCENTRATIONS OF CREDIT RISK
 
     The Bank has no significant concentration of credit risk with any
individual counterparty to originate loans. Bank loan customers are principally
closely-held businesses and residents concentrated in the central Florida area
and as such, the debtors' ability to honor their contract is substantially
dependent upon the general economic conditions of the region.
 
     Most of the Bank's business activity is with customers located within the
Central Florida area. Investments in state and municipal securities involve
governmental entities within the Bank's market area.
 
15.  RELATED-PARTY TRANSACTIONS
 
     Loans.  Certain of the Bank's directors and officers are customers and have
loans with the Bank. The loans were made in the ordinary course of business on
substantially the same terms and conditions, including interest rates and
collateral, as those prevailing at the same time for comparable transactions
with other customers. Activity in loans to directors and officers is as follows:
 
<TABLE>
<CAPTION>
                                                               1996      1995
                                                              ------    ------
                                                               (IN THOUSANDS)
<S>                                                           <C>       <C>
Balance, at beginning of year...............................  $2,139    $1,634
  Loans originated..........................................     561       902
  Principal repayments......................................    (939)     (397)
                                                              ------    ------
Balance, at end of year.....................................  $1,761    $2,139
                                                              ======    ======
</TABLE>
 
     Deposits.  Deposits of principal stockholders, directors, executive
officers and companies in which they have a 10% or more beneficial interest
aggregated approximately $2,539,000 and $2,482,000 at December 31, 1996 and
1995, respectively .
 
                                      F-21
<PAGE>   118
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Leases.  During 1996, 1995 and 1994, respectively, two, four and four of
the Bank's leased premises are leased from entities in which one of the
Company's stockholders has an ownership interest. The Bank paid rent of
approximately $65,000, $325,000 and $288,000 related to these leases for the
years ended December 31, 1996, 1995 and 1994, respectively. The leases have
remaining lease terms less than one year.
 
     Construction Contract.  During 1996, 1995 and 1994, the Bank paid
approximately $551,000, $164,000 and $336,000, respectively, in construction
costs to an entity in which one of the Bank's directors has an ownership
interest.
 
     Purchase.  In January of 1996, the Bank purchased its Maitland and Longwood
branches and its Corrine Drive operations center from entities in which one of
the Company's stockholders has an ownership interest. The total purchase price
for all three locations was $2,410,000. These assets are included in Bank
premises and equipment at December 31, 1996.
 
16.  FAIR VALUES OF FINANCIAL INSTRUMENTS
 
     Statement of Financial Accounting Standards No. 107, Disclosures About Fair
Values of Financial Instruments, (FAS No. 107), requires that the Company
disclose estimated fair values of financial instruments for which it is
practicable to estimate that value. Fair value estimates, methods and
assumptions are set forth below for the Company's financial instruments.
 
     Cash and Cash Equivalents, and Interest-Bearing Deposits in Banks.  For
those short-term instruments, the carrying amount is a reasonable estimate of
fair value.
 
     Investment Securities.  The fair value of investments is estimated based on
bid prices published in financial newspapers or bid quotations received from
securities dealers.
 
     Loans Receivable.  The fair value of fixed rate performing loans is
estimated by discounting the future cash flows using the current rates at which
similar loans would be made to borrowers with similar credit ratings and for the
same remaining maturities. The carrying amount of adjustable rate performing
loans and nonperforming loans is a reasonable estimate of fair value.
 
     Deposit Liabilities.  The fair value of deposits with no stated maturity,
such as demand, NOW, money market and savings, is equal to the amount payable on
demand as of December 31, 1996 and 1995. The fair value of time deposits is
based on the discounted value of contractual cash flows. The discount rate is
estimated using the rates currently offered for deposits of similar remaining
maturities. The fair value estimates do not include the benefit that results
from the low-cost funding provided by the deposit liabilities compared to the
cost of borrowing funds in the market.
 
                                      F-22
<PAGE>   119
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Federal Funds Sold, Note Payable and Securities Sold Under Agreements to
Repurchase.  The estimated fair value of these liabilities which bear interest
at an adjustable rate approximates the carrying value.
 
     The estimated fair value of the Company's financial instruments were as
follows at:
 
<TABLE>
<CAPTION>
                                                   DECEMBER 31,          DECEMBER 31,
                                                       1996                  1995
                                                -------------------   -------------------
                                                CARRYING     FAIR     CARRYING     FAIR
                                                 AMOUNT     VALUE      AMOUNT     VALUE
                                                --------   --------   --------   --------
                                                  (IN THOUSANDS)        (IN THOUSANDS)
<S>                                             <C>        <C>        <C>        <C>
Financial assets:
  Cash and due from banks, interest-bearing
     deposits with banks, and federal funds
     sold.....................................  $ 19,736   $ 19,736   $  8,971   $  8,971
  Securities available for sale...............    22,784     22,784     24,410     24,410
  Loans receivable............................   151,965    151,049    113,492    113,129
  Accrued interest receivable.................     1,183      1,183      1,101      1,101
Financial liabilities:
  Deposit liabilities.........................   176,416    177,257    134,357    135,194
  Securities sold under agreements to
     repurchase...............................     5,228      5,228        592        592
  Federal funds sold..........................     4,000      4,000      3,500      3,500
  Note payable................................     1,100      1,100         --         --
</TABLE>
 
     Commitments to Extend Credit and Standby Letters of Credit.  The fair value
of commitments to extend credit is estimated using the fees currently charged to
enter into similar agreements, taking into account the remaining terms of the
agreements and the present credit worthiness of the counterparties. For fixed
rate loan commitments, fair value also considers the difference between current
levels of interest rates and the committed rates. The fair value of financial
guarantees written and letters of credit is based on fees currently charged for
similar agreements or on the estimated cost to terminate them or otherwise
settle the obligations with the counterparties.
 
     The contract amount for commitments to extend credit and standby letters of
credit written at December 31, 1996 and 1995 follow:
 
<TABLE>
<CAPTION>
                                                                    DECEMBER 31,
                                                                        1996
                                                              -------------------------
                                                               CONTRACT      ESTIMATED
                                                                AMOUNT      FAIR VALUE
                                                              -----------   -----------
<S>                                                           <C>           <C>
Commitments to extend credit................................  $43,300,000      $ --
Standby letters of credit...................................    1,500,000        --
</TABLE>
 
<TABLE>
<CAPTION>
                                                                    DECEMBER 31,
                                                                        1995
                                                              -------------------------
                                                               CONTRACT      ESTIMATED
                                                                AMOUNT      FAIR VALUE
                                                              -----------   -----------
<S>                                                           <C>           <C>
Commitments to extend credit................................  $27,100,000      $ --
Standby letters of credit...................................    1,200,000        --
</TABLE>
 
     Limitations.  The fair value estimates are made at a discrete point in time
based on relevant market information and information about the financial
instrument. Because no market exists for a significant portion of the Bank's
financial instruments, fair value estimates are based on judgments regarding
future expected loss experience, current economic conditions, risk
characteristics of various financial instruments, and other factors. These
estimates are subjective in nature and involve uncertainties and matters of
significant judgment and therefore cannot be determined with precision. Changes
in assumptions could significantly affect the estimates.
 
                                      F-23
<PAGE>   120
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     In addition, the fair value estimates are based on existing on- and
off-balance sheet financial instruments without attempting to estimate the value
of anticipated future business and the value of assets and liabilities that are
not considered financial instruments. Other significant assets and liabilities
that are not considered financial assets or liabilities include core deposit
intangibles, deferred tax assets, property, plant and equipment, and goodwill.
In addition, the tax ramifications related to the realization of the unrealized
gains and losses on investment securities can have a significant effect on fair
value estimates and have not been considered in the estimates.
 
17.  UNITED AMERICAN HOLDING CORPORATION (PARENT COMPANY ONLY)
 
     The Company's principal assets are its investment in the Bank and goodwill.
The Company's primary source of income is equity in earnings of the Bank.
 
     The Company's condensed balance sheet as of December 31, 1996 and the
related condensed statement of income, stockholders' equity and cash flows for
the year ended December 31, 1996 follow:
 
                  PARENT COMPANY ONLY CONDENSED BALANCE SHEET
 
<TABLE>
<CAPTION>
                                                              DECEMBER 31,
                                                                  1996
                                                              ------------
<S>                                                           <C>
                                  ASSETS
Cash........................................................  $   120,334
Interest-bearing deposits in banks..........................      210,850
Investment in subsidiary....................................   15,240,285
Accrued interest receivable.................................        1,650
Organization costs, net.....................................       10,486
Goodwill, net...............................................    2,139,403
                                                              -----------
          Total assets......................................  $17,723,008
                                                              ===========
                   LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities:
  Due to bank...............................................  $        --
  Note payable..............................................    1,100,000
                                                              -----------
          Total liabilities.................................    1,100,000
                                                              -----------
Stockholders' equity:
  Common stock, par value $.01 per share; 2,000,000 shares
     authorized; 1,520,500 shares issued and outstanding at
     December 31, 1996......................................       15,205
  Additional paid-in capital................................   15,261,156
  Unrealized loss on securities available for sale..........       (5,317)
  Retained earnings (deficit)...............................    1,351,964
                                                              -----------
                                                               16,623,008
  Less treasury stock.......................................           --
                                                              -----------
          Total stockholders' equity........................   16,623,008
                                                              -----------
          Total liabilities and stockholders' equity........  $17,723,008
                                                              ===========
</TABLE>
 
                                      F-24
<PAGE>   121
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
               PARENT COMPANY ONLY CONDENSED STATEMENT OF INCOME
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED
                                                              DECEMBER 31,
                                                                  1996
                                                              ------------
<S>                                                           <C>
Revenues:
  Equity in net undistributed earnings of subsidiary........   $2,582,060
  Interest income...........................................       14,574
                                                               ----------
                                                                2,596,634
                                                               ----------
Expenses:
  Interest..................................................       35,871
  Amortization..............................................       72,099
  Other.....................................................        3,881
                                                               ----------
                                                                  111,851
                                                               ----------
Income before income tax benefit............................    2,484,783
Income tax benefit..........................................           --
                                                               ----------
Net income..................................................   $2,484,783
                                                               ==========
</TABLE>
 
        PARENT COMPANY ONLY CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY
                          YEAR ENDED DECEMBER 31, 1996
<TABLE>
<CAPTION>
                                                                                          UNREALIZED
                                                                                             GAIN
                                                                                            (LOSS)
                                                                                              ON           RETAINED
                                  COMMON STOCK         ADDITIONAL     TREASURY STOCK      SECURITIES      EARNINGS/
                             -----------------------     PAID-IN     -----------------     AVAILABLE     (ACCUMULATED
                              SHARES      PAR VALUE      CAPITAL     SHARES     COST       FOR SALE        DEFICIT)
                             ---------   -----------   -----------   ------   --------   -------------   ------------
<S>                          <C>         <C>           <C>           <C>      <C>        <C>             <C>
Balance, December 31,
  1995.....................  1,500,000   $ 3,750,000   $11,321,361   (5,000)  $(50,000)    $ 51,910       $ (382,819)
  Sale of stock............     20,500        51,250       153,750       --         --           --               --
  Change in unrealized
    gain...................         --            --            --       --         --      (57,227)              --
  Sale of treasury stock...         --            --            --    5,000     50,000           --               --
  Dividends paid...........         --            --            --       --         --           --          750,000
  Change in par value......         --    (3,786,045)    3,786,045       --         --           --               --
  Net income...............         --            --            --       --         --           --        2,484,783
                             ---------   -----------   -----------   ------   --------     --------       ----------
Balance, December 31,
  1996.....................  1,520,500   $    15,205   $15,261,156       --   $     --     $ (5,317)      $1,351,964
                             =========   ===========   ===========   ======   ========     ========       ==========
 
<CAPTION>
 
                                 TOTAL
                             STOCKHOLDERS'
                                EQUITY
                             -------------
<S>                          <C>
Balance, December 31,
  1995.....................   $14,690,452
  Sale of stock............       205,000
  Change in unrealized
    gain...................       (57,227)
  Sale of treasury stock...        50,000
  Dividends paid...........       750,000
  Change in par value......            --
  Net income...............     2,484,783
                              -----------
Balance, December 31,
  1996.....................   $16,623,008
                              ===========
</TABLE>
 
                                      F-25
<PAGE>   122
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
             PARENT COMPANY ONLY CONDENSED STATEMENT OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED
                                                              DECEMBER 31,
                                                                  1996
                                                              ------------
<S>                                                           <C>
Cash Flows from Operating Activities:
  Cash paid to suppliers....................................  $    (3,879)
  Cash paid to subsidiary...................................           --
  Interest paid.............................................      (35,871)
  Interest received.........................................       14,449
  Income tax benefit received...............................           --
                                                              -----------
          Net cash used in financing activities.............      (25,301)
                                                              -----------
Cash Flows from Investing Activities:
  Proceeds from maturity of interest-bearing deposits in
     bank...................................................           --
  Purchase of interest-bearing deposits in bank.............      (10,850)
  Contribution to subsidiary................................   (1,200,000)
  Dividends received from subsidiary........................      750,000
                                                              -----------
          Net cash used in investing activities.............     (460,850)
                                                              -----------
Cash Flows from Financing Activities:
  Proceeds from sale of stock...............................      205,000
  Purchase of treasury stock................................           --
  Sale of treasury stock....................................       50,000
  Principal payments on notes payable.......................           --
  Proceeds from notes payable...............................    1,100,000
  Payment of dividends......................................     (750,000)
                                                              -----------
          Net cash provided by financing activities.........      605,000
                                                              -----------
Net Increase in Cash........................................      118,849
Cash:
  Beginning of year.........................................        1,485
                                                              -----------
  End of year...............................................  $   120,334
                                                              ===========
Reconciliation of Net Income to Net Cash Used in Operations:
  Net income................................................  $ 2,484,783
                                                              -----------
  Adjustments to reconcile net loss to net cash used in
     operating activities:
     Amortization...........................................       72,101
     Equity in undistributed earnings of subsidiary.........   (2,582,060)
     Decrease in income tax refund receivable...............           --
     Decrease (increase) in accrued interest receivable.....         (125)
     Decrease in due to bank................................           --
     Decrease in other liabilities..........................           --
     Dividends received.....................................      750,000
                                                              -----------
          Total adjustments.................................   (1,760,084)
                                                              -----------
Net Cash Provided by (Used in) Operating Activities.........  $   724,699
                                                              ===========
</TABLE>
 
                                      F-26
<PAGE>   123
 
               UNITED AMERICAN HOLDING CORPORATION AND SUBSIDIARY
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
18.  SUBSEQUENT EVENTS
 
     In January, 1997, the Company declared and paid dividends totalling
$760,250 to its stockholders.
 
19.  FUTURE ACCOUNTING PRONOUNCEMENTS
 
     In June, 1996, the Financial Accounting Standards Board (FASB) issued SFAS
125, which is effective for transactions that occur after December 31, 1996 and
will be applied prospectively. Among other things, this standard provides
criteria for recognition of sales in connection with transfers of financial
instruments including loan participations. The impact of this standard is not
expected to be significant.
 
                                      F-27
<PAGE>   124
 
                                                                      APPENDIX A
 
                          AGREEMENT AND PLAN OF MERGER
 
                                 BY AND BETWEEN
 
                         THE COLONIAL BANCGROUP, INC.,
 
                                      AND
 
                      UNITED AMERICAN HOLDING CORPORATION
 
                                  DATED AS OF
 
                               SEPTEMBER 8, 1997
 
                                       A-1
<PAGE>   125
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
CAPTION                                                                PAGE
- -------                                                                ----
<C>      <S>                                                           <C>
ARTICLE 1 -- NAME
  1.1    Name........................................................
ARTICLE 2 -- MERGER -- TERMS AND CONDITIONS
  2.1    Applicable Law..............................................
  2.2    Corporate Existence.........................................
  2.3    Articles of Incorporation and Bylaws........................
  2.4    Resulting Corporation's Officers and Board..................
  2.5    Stockholder Approval........................................
  2.6    Further Acts................................................
  2.7    Effective Date and Closing..................................
  2.8    Subsidiary Bank Merger......................................
ARTICLE 3 -- CONVERSION OF ACQUIRED CORPORATION STOCK
  3.1    Conversion of Acquired Corporation Stock....................
  3.2    Surrender of Acquired Corporation Stock.....................
  3.3    Fractional Shares...........................................
  3.4    Adjustments.................................................
  3.5    BancGroup Stock.............................................
  3.6    Dissenting Rights...........................................
ARTICLE 4 -- REPRESENTATIONS, WARRANTIES AND COVENANTS OF BANCGROUP
  4.1    Organization................................................
  4.2    Capital Stock...............................................
  4.3    Financial Statements; Taxes.................................
  4.4    No Conflict with Other Instrument...........................
  4.5    Absence of Material Adverse Change..........................
  4.6    Approval of Agreements......................................
  4.7    Tax Treatment...............................................
  4.8    Title and Related Matters...................................
  4.9    Subsidiaries................................................
  4.10   Contracts...................................................
  4.11   Litigation..................................................
  4.12   Compliance..................................................
  4.13   Registration Statement......................................
  4.14   SEC Filings.................................................
  4.15   Form S-4....................................................
  4.16   Brokers.....................................................
  4.17   Government Authorization....................................
  4.18   Absence of Regulatory Communications........................
  4.19   Disclosure..................................................
ARTICLE 5 -- REPRESENTATIONS, WARRANTIES AND COVENANTS OF ACQUIRED
             CORPORATION
  5.1    Organization................................................
  5.2    Capital Stock...............................................
  5.3    Subsidiaries................................................
  5.4    Financial Statements; Taxes.................................
  5.5    Absence of Certain Changes or Events........................
  5.6    Title and Related Matters...................................
  5.7    Commitments.................................................
</TABLE>
 
                                       A-2
<PAGE>   126
<TABLE>
<CAPTION>
CAPTION                                                                PAGE
- -------                                                                ----
<C>      <S>                                                           <C>
  5.8    Charter and Bylaws..........................................
  5.9    Litigation..................................................
  5.10   Material Contract Defaults..................................
  5.11   No Conflict with Other Instrument...........................
  5.12   Governmental Authorization..................................
  5.13   Absence of Regulatory Communications........................
  5.14   Absence of Material Adverse Change..........................
  5.15   Insurance...................................................
  5.16   Pension and Employee Benefit Plans..........................
  5.17   Buy-Sell Agreement..........................................
  5.18   Brokers.....................................................
  5.19   Approval of Agreements......................................
  5.20   Disclosure..................................................
  5.21   Registration Statement......................................
  5.22   Loans; Adequacy of Allowance for Loan Losses................
  5.23   Environmental Matters.......................................
  5.24   Transfer of Shares..........................................
  5.25   Collective Bargaining.......................................
  5.26   Labor Disputes..............................................
  5.27   Derivative Contracts........................................
ARTICLE 6 -- ADDITIONAL COVENANTS
  6.1    Additional Covenants of BancGroup...........................
  6.2    Additional Covenants of Acquired Corporation................
ARTICLE 7 -- MUTUAL COVENANTS AND AGREEMENTS
  7.1    Best Efforts; Cooperation...................................
  7.2    Press Release...............................................
  7.3    Mutual Disclosure...........................................
  7.4    Access to Properties and Records............................
  7.5    Notice of Adverse Changes...................................
ARTICLE 8 -- CONDITIONS TO OBLIGATIONS OF ALL PARTIES
  8.1    Approval by Shareholders....................................
  8.2    Regulatory Authority Approval...............................
  8.3    Litigation..................................................
  8.4    Registration Statement......................................
  8.5    Tax Opinion.................................................
ARTICLE 9 -- CONDITIONS TO OBLIGATIONS OF ACQUIRED CORPORATION
  9.1    Representations, Warranties and Covenants...................
  9.2    Adverse Changes.............................................
  9.3    Closing Certificate.........................................
  9.4    Opinion of Counsel..........................................
  9.5    NYSE Listing................................................
  9.6    Other Matters...............................................
  9.7    Material Events.............................................
ARTICLE 10 -- CONDITIONS TO OBLIGATIONS OF BANCGROUP
 10.1    Representations, Warranties and Covenants...................
 10.2    Adverse Changes.............................................
 10.3    Closing Certificate.........................................
 10.4    Opinion of Counsel..........................................
 10.5    Controlling Shareholders....................................
 10.6    Other Matters...............................................
</TABLE>
 
                                       A-3
<PAGE>   127
<TABLE>
<CAPTION>
CAPTION                                                                PAGE
- -------                                                                ----
<C>      <S>                                                           <C>
 10.7    Dissenters..................................................
 10.8    Material Events.............................................
 10.9    Employment/Non-competition Agreements.......................
 10.10   Pooling of Interests........................................
ARTICLE 11 -- TERMINATION OF REPRESENTATIONS AND WARRANTIES..........
ARTICLE 12 -- NOTICES................................................
ARTICLE 13 -- AMENDMENT OR TERMINATION
 13.1    Amendment...................................................
 13.2    Termination.................................................
 13.3    Damages.....................................................
ARTICLE 14 -- DEFINITIONS............................................
ARTICLE 15 -- MISCELLANEOUS
 15.1    Expenses....................................................
 15.2    Benefit.....................................................
 15.3    Governing Law...............................................
 15.4    Counterparts................................................
 15.5    Headings....................................................
 15.6    Severability................................................
 15.7    Construction................................................
 15.8    Return of Information.......................................
 15.9    Equitable Remedies..........................................
 15.10   Attorneys' Fees.............................................
 15.11   No Waiver...................................................
 15.12   Remedies Cumulative.........................................
 15.13   Entire Contract.............................................
</TABLE>
 
                                       A-4
<PAGE>   128
 
                          AGREEMENT AND PLAN OF MERGER
 
     THIS AGREEMENT AND PLAN OF MERGER is made and entered into as of this the
8th day of September 1997, by and between UNITED AMERICAN HOLDING CORPORATION ,
("Acquired Corporation"), a Florida corporation, and THE COLONIAL BANCGROUP,
INC. ("BancGroup"), a Delaware corporation.
 
                                   WITNESSETH
 
     WHEREAS, Acquired Corporation operates as a bank holding company for its
wholly owned subsidiary, United American Bank of Central Florida (the "Bank"),
with its principal office in Orlando, Florida; and
 
     WHEREAS, BancGroup is a bank holding company with a Subsidiary bank,
Colonial Bank, operating in Alabama, Florida, Georgia and Tennessee; and
 
  WHEREAS, Acquired Corporation wishes to merge with BancGroup; and
 
     WHEREAS, it is the intention of BancGroup and Acquired Corporation that
such Merger shall qualify for federal income tax purposes as a "reorganization"
within the meaning of section 368(a) of the Code, as defined herein;
 
     NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the Parties hereto agree as follows:
 
                                   ARTICLE 1
 
                                      NAME
 
     1.1 Name.  The name of the corporation resulting from the Merger shall be
"The Colonial BancGroup, Inc."
 
                                   ARTICLE 2
 
                         MERGER -- TERMS AND CONDITIONS
 
     2.1 Applicable Law.  On the Effective Date, Acquired Corporation shall be
merged with and into BancGroup (herein referred to as the "Resulting
Corporation" whenever reference is made to it as of the time of merger or
thereafter). The Merger shall be undertaken pursuant to the provisions of and
with the effect provided in the DGCL and, to the extent applicable, the FBCA.
The offices and facilities of Acquired Corporation and of BancGroup shall become
the offices and facilities of the Resulting Corporation.
 
     2.2 Corporate Existence.  On the Effective Date, the corporate existence of
Acquired Corporation and of BancGroup shall, as provided in the DGCL and the
FBCA, be merged into and continued in the Resulting Corporation, and the
Resulting Corporation shall be deemed to be the same corporation as Acquired
Corporation and BancGroup. All rights, franchises and interests of Acquired
Corporation and BancGroup, respectively, in and to every type of property (real,
personal and mixed) and choses in action shall be transferred to and vested in
the Resulting Corporation by virtue of the Merger without any deed or other
transfer. The Resulting Corporation on the Effective Date, and without any order
or other action on the part of any court or otherwise, shall hold and enjoy all
rights of property, franchises and interests, including appointments,
designations and nominations and all other rights and interests as trustee,
executor, administrator, transfer agent and registrar of stocks and bonds,
guardian of estates, assignee, and receiver and in every other fiduciary
capacity and in every agency, and capacity, in the same manner and to the same
extent as such rights, franchises and interests were held or enjoyed by Acquired
Corporation and BancGroup, respectively, on the Effective Date.
 
                                       A-5
<PAGE>   129
 
     2.3 Articles of Incorporation and Bylaws.  On the Effective Date, the
certificate of incorporation and bylaws of the Resulting Corporation shall be
the restated certificate of incorporation and bylaws of BancGroup as they exist
immediately before the Effective Date.
 
     2.4 Resulting Corporation's Officers and Board.  The board of directors and
the officers of the Resulting Corporation on the Effective Date shall consist of
those persons serving in such capacities of BancGroup as of the Effective Date.
 
     2.5 Stockholder Approval.  This Agreement shall be submitted to the
shareholders of Acquired Corporation at the Stockholders Meeting to be held as
promptly as practicable consistent with the satisfaction of the conditions set
forth in this Agreement. Upon approval by the requisite vote of the shareholders
of Acquired Corporation as required by applicable Law, the Merger shall become
effective as soon as practicable thereafter in the manner provided in section
2.7 hereof.
 
     2.6 Further Acts.  If, at any time after the Effective Date, the Resulting
Corporation shall consider or be advised that any further assignments or
assurances in law or any other acts are necessary or desirable (i) to vest,
perfect, confirm or record, in the Resulting Corporation, title to and
possession of any property or right of Acquired Corporation or BancGroup,
acquired as a result of the Merger, or (ii) otherwise to carry out the purposes
of this Agreement, BancGroup and its officers and directors shall execute and
deliver all such proper deeds, assignments and assurances in law and do all acts
necessary or proper to vest, perfect or confirm title to, and possession of,
such property or rights in the Resulting Corporation and otherwise to carry out
the purposes of this Agreement; and the proper officers and directors of the
Resulting Corporation are fully authorized in the name of Acquired Corporation
or BancGroup, or otherwise, to take any and all such action.
 
     2.7 Effective Date and Closing.  Subject to the terms of all requirements
of Law and the conditions specified in this Agreement, the Merger shall become
effective on the date specified in the Certificate of Merger to be issued by the
Secretary of State of the State of Delaware (such time being herein called the
"Effective Date"). Assuming all other conditions stated in this Agreement have
been or will be satisfied as of the Closing, the Closing shall take place at the
offices of BancGroup, in Montgomery, Alabama, at 5:00 p.m. on a date specified
by BancGroup that shall be as soon as reasonably practicable after the later to
occur of the Stockholder meeting or all required regulatory approvals under
Section 8.2, or at such other place and time that the Parties may mutually
agree.
 
     2.8 Subsidiary Bank Merger.  BancGroup and Acquired Corporation anticipate
that immediately after the Effective Date the Bank will merge with and into
Colonial Bank, BancGroup's Subsidiary bank. The exact timing and structure of
such merger have not been finalized at this time, and BancGroup in its
discretion will finalize such timing and structure at a later date. Acquired
Corporation will cooperate with BancGroup, including the call of any special
meetings of the board of directors of the Bank and the filing of any regulatory
applications, in the execution of appropriate documentation relating to such
merger.
 
                                   ARTICLE 3
 
                    CONVERSION OF ACQUIRED CORPORATION STOCK
 
     3.1 Conversion of Acquired Corporation Stock.  (a) On the Effective Date,
each share of common stock of Acquired Corporation outstanding and held of
record by Acquired Corporation's shareholders (the "Acquired Corporation
Stock"), shall be converted by operation of law and without any action by any
holder thereof into shares of BancGroup Common Stock at a per share price of
$36.50 (the "Merger Consideration") as specified below. Specifically, each
outstanding share of Acquired Corporation Stock shall (subject to section 3.3
hereof), be converted into such number of shares of BancGroup Common Stock equal
to $36.50 divided by the Market Value. The "Market Value" shall represent the
per share market value of the BancGroup Common Stock at the Effective Date and
shall be determined by calculating the average of the closing prices of the
Common Stock of BancGroup as reported by the NYSE on each of the ten consecutive
trading days ending on the trading day five calendar days immediately preceding
the Effective Date. Regardless of the Market Value, however, the maximum number
of shares of BancGroup Common Stock to be issued in the Merger shall be
2,729,218 (based upon a minimum Market Value of $23.80) and the
 
                                       A-6
<PAGE>   130
 
minimum number of shares of BancGroup Common Stock to be issued in the Merger
shall be 2,017,248 (based upon a maximum Market Value of $32.20) assuming
1,779,600 shares of Acquired Corporation common stock outstanding. To the extent
that the number of shares of Acquired Corporation Stock may increase based upon
the exercise of Acquired Corporation Options, the maximum and minimum number of
shares of BancGroup Common Stock to be issued in the Merger shall be increased
with each share of Acquired Corporation Stock outstanding at the Effective Date
exchanged for shares of BancGroup Common Stock equal to $36.50 divided by the
Market Value, provided that for this purpose the Market Value shall be deemed to
be no less than $23.80 and no greater than $32.20.
 
     (b) No later than five days prior to the Effective Date, the holders of
Acquired Corporation Options may provide written notice to Acquired Corporation
(in form and substance reasonably satisfactory to BancGroup) that they wish to
surrender their Acquired Corporation Options to BancGroup, effective at the
Effective Date, and, in lieu of the treatment provided in Section 3.1(c) below,
to receive an amount of BancGroup Common Stock in exchange therefor equal to the
difference between the total value of the shares of BancGroup Common Stock to be
issued pursuant to such Acquired Corporation Options (based upon the number of
shares of BancGroup Common Stock to be issued pursuant to the Acquired
Corporation Options multiplied by the Market Value) less the aggregate exercise
price of such Acquired Corporation Options at the Effective Date, divided by the
Market Value. No fractions of shares shall be issued and fractions shall be paid
in cash at the Market Value.
 
     (c)(i) On the Effective Date, and subject to section 3.1(b) above,
BancGroup shall assume all Acquired Corporation Options outstanding, and each
such option shall cease to represent a right to acquire Acquired Corporation
common stock and shall, instead, represent the right to acquire BancGroup Common
Stock on substantially the same terms applicable to the Acquired Corporation
Options except as specified below in this section. The number of shares of
BancGroup Common Stock to be issued pursuant to such options shall equal the
number of shares of Acquired Corporation common stock subject to such Acquired
Corporation Options multiplied by the Exchange Ratio, provided that no fractions
of shares of BancGroup Common Stock shall be issued and the number of shares of
BancGroup Common Stock to be issued upon the exercise of Acquired Corporation
Options, if a fractional share exists, shall equal the number of whole shares
obtained by rounding to the nearest whole number, giving account to such
fraction, or by paying for such fraction in cash, based upon the Market Value.
The exercise price for the acquisition of BancGroup Common Stock shall be the
exercise price for each share of Acquired Corporation common stock subject to
such options divided by the Exchange Ratio, adjusted appropriately for any
rounding to whole shares that may be done. For purposes of this section
3.1(c)(i), the "Exchange Ratio" shall mean the result obtained by dividing
$36.50 by the Market Value. It is intended that the assumption by BancGroup of
the Acquired Corporation Options shall be undertaken in a manner that will not
constitute a "modification" as defined in Section 424 of the Code as to any
stock option which is an "incentive stock option." Schedule 3.1(c) hereto sets
forth the names of all persons holding Acquired Corporation Options, the number
of shares of Acquired Corporation common stock subject to such options, the
exercise price and the expiration date of such options.
 
     (ii) BancGroup shall file at its expense a registration statement with the
SEC on Form S-8 or such other appropriate form (including the Form S-4 to be
filed in connection with the Merger) with respect to the shares of BancGroup
Common Stock to be issued pursuant to such options and shall use its reasonable
best efforts to maintain the effectiveness of such registration statement for so
long as such options remain outstanding. Such shares shall also be registered or
qualified for sale under the securities laws of any state in which registration
or qualification is necessary.
 
     3.2 Surrender of Acquired Corporation Stock.  After the Effective Date,
each holder of an outstanding certificate or certificates which prior thereto
represented shares of Acquired Corporation Stock who is entitled to receive
BancGroup Common Stock shall be entitled, upon surrender to BancGroup of their
certificate or certificates representing shares of Acquired Corporation Stock
(or an affidavit or affirmation by such holder of the loss, theft, or
destruction of such certificate or certificates in such form as BancGroup may
reasonably require and, if BancGroup reasonably requires, a bond of indemnity in
form and amount, and issued by such sureties, as BancGroup may reasonably
require), to receive in exchange therefor a certificate or certificates
representing the number of whole shares of BancGroup Common Stock into and for
which the shares of
 
                                       A-7
<PAGE>   131
 
Acquired Corporation Stock so surrendered shall have been converted, such
certificates to be of such denominations and registered in such names as such
holder may reasonably request. Until so surrendered and exchanged, each such
outstanding certificate which, prior to the Effective Date, represented shares
of Acquired Corporation Stock and which is to be converted into BancGroup Common
Stock shall for all purposes evidence ownership of the BancGroup Common Stock
into and for which such shares shall have been so converted, except that no
dividends or other distributions with respect to such BancGroup Common Stock
shall be made until the certificates previously representing shares of Acquired
Corporation Stock shall have been properly tendered.
 
     3.3 Fractional Shares.  No fractional shares of BancGroup Common Stock
shall be issued, and each holder of shares of Acquired Corporation Stock having
a fractional interest arising upon the conversion of such shares into shares of
BancGroup Common Stock shall, at the time of surrender of the certificates
previously representing Acquired Corporation Stock, be paid by BancGroup an
amount in cash equal to the Market Value of such fractional share.
 
     3.4 Adjustments.  In the event that prior to the Effective Date BancGroup
Common Stock shall be changed into a different number of shares or a different
class of shares by reason of any recapitalization or reclassification, stock
dividend, combination, stock split, or reverse stock split of the BancGroup
Common Stock, an appropriate and proportionate adjustment shall be made in the
number of shares of BancGroup Common Stock into which the Acquired Corporation
Stock shall be converted as well as the maximum and minimum number of BancGroup
Common Stock issuable in the Merger.
 
     3.5 BancGroup Stock.  The shares of Common Stock of BancGroup issued and
outstanding immediately before the Effective Date shall continue to be issued
and outstanding shares of the Resulting Corporation.
 
     3.6 Dissenting Rights.  Any shareholder of Acquired Corporation who shall
not have voted in favor of this Agreement and who has complied with the
applicable procedures set forth in the FBCA, relating to rights of dissenting
shareholders, shall be entitled to receive payment for the fair value of his
Acquired Corporation Stock. If after the Effective Date a dissenting shareholder
of Acquired Corporation fails to perfect, or effectively withdraws or loses his
right to appraisal and payment for his shares of Acquired Corporation Stock,
BancGroup shall issue and deliver the consideration to which such holder of
shares of Acquired Corporation Stock is entitled under Section 3.1 (without
interest) upon surrender by such holder of the certificate or certificates
representing shares of Acquired Corporation Stock held by him or her.
 
                                   ARTICLE 4
 
             REPRESENTATIONS, WARRANTIES AND COVENANTS OF BANCGROUP
 
     BancGroup represents, warrants and covenants to and with Acquired
Corporation as follows:
 
     4.1 Organization.  BancGroup is a corporation duly organized, validly
existing and in good standing under the Laws of the State of Delaware. BancGroup
has the necessary corporate powers to carry on its business as presently
conducted and is qualified to do business in every jurisdiction in which the
character and location of the Assets owned by it or the nature of the business
transacted by it requires qualification or in which the failure to qualify
could, individually or in the aggregate, have a Material Adverse Effect.
 
     4.2 Capital Stock.  (a) The authorized capital stock of BancGroup consists
of (A) 100,000,000 shares of Common Stock, $2.50 par value per share, of which
as of July 31, 1997, 41,912,989 shares were validly issued and outstanding,
fully paid and nonassessable and are not subject to preemptive rights (not
counting additional shares subject to issue pursuant to stock option and other
plans and convertible debentures), and (B) 1,000,000 shares of Preference Stock,
$2.50 par value per share, none of which are issued and outstanding. The shares
of BancGroup Common Stock to be issued in the Merger are duly authorized and,
when so issued, will be validly issued and outstanding, fully paid and
nonassessable, will have been registered under the 1933 Act, and will have been
registered or qualified under the securities laws of all jurisdictions in which
such registration or qualification is required, based upon information provided
by Acquired Corporation.
 
                                       A-8
<PAGE>   132
 
     (b) The authorized capital stock of each Subsidiary of BancGroup is validly
issued and outstanding, fully paid and nonassessable, and each Subsidiary is
wholly owned, directly or indirectly, by BancGroup.
 
     4.3 Financial Statements; Taxes. (a) BancGroup has delivered to Acquired
Corporation copies of the following financial statements of BancGroup:
 
          (i) Consolidated balance sheets as of December 31, 1995, December 31,
     1996, and June 30, 1997;
 
          (ii) Consolidated statements of operations for each of the three years
     ended December 31, 1994, 1995 and 1996, and for the six months ended June
     30, 1997;
 
          (iii) Consolidated statements of cash flows for each of the three
     years ended December 31, 1994, 1995 and 1996, and for the six months ended
     June 30, 1997; and
 
          (iv) Consolidated statements of changes in shareholders' equity for
     the three years ended December 31, 1994, 1995 and 1996, and for the six
     months ended June 30, 1997. All such financial statements are in all
     material respects in accordance with the books and records of BancGroup and
     have been prepared in accordance with GAAP applied on a consistent basis
     throughout the periods indicated, all as more particularly set forth in the
     notes to such statements. Each of the consolidated balance sheets presents
     fairly as of its date the consolidated financial condition of BancGroup and
     its Subsidiaries. Except as and to the extent reflected or reserved against
     in such balance sheets (including the notes thereto), BancGroup did not
     have, as of the dates of such balance sheets, any material Liabilities or
     obligations (absolute or contingent) of a nature customarily reflected in a
     balance sheet or the notes thereto. The statements of consolidated income,
     shareholders' equity and changes in consolidated financial position present
     fairly the results of operations and changes in financial position of
     BancGroup and its Subsidiaries for the periods indicated. The foregoing
     representations, insofar as they relate to the unaudited interim financial
     statements of BancGroup for the six months ended June 30, 1997, are subject
     in all cases to normal recurring year-end adjustments and the omission of
     footnote disclosure.
 
     (b) All Tax returns required to be filed by or on behalf of BancGroup have
been timely filed (or requests for extensions therefor have been timely filed
and granted and have not expired), and all returns filed are complete and
accurate in all material respects. All Taxes shown on these returns to be due
and all additional assessments received have been paid. The amounts recorded for
Taxes on the balance sheets provided under section 4.3(a) are, to the Knowledge
of BancGroup, sufficient in all material respects for the payment of all unpaid
federal, state, county, local, foreign or other Taxes (including any interest or
penalties) of BancGroup accrued for or applicable to the period ended on the
dates thereof, and all years and periods prior thereto and for which BancGroup
may at such dates have been liable in its own right or as transferee of the
Assets of, or as successor to, any other corporation or other party. No audit,
examination or investigation is presently being conducted or, to the Knowledge
of BancGroup, threatened by any taxing authority which is likely to result in a
material Tax Liability, no material unpaid Tax deficiencies or additional
liabilities of any sort have been proposed by any governmental representative
and no agreements for extension of time for the assessment of any material
amount of Tax have been entered into by or on behalf of BancGroup. BancGroup has
withheld from its employees (and timely paid to the appropriate governmental
entity) proper and accurate amounts for all periods in material compliance with
all Tax withholding provisions of applicable federal, state, foreign and local
Laws (including without limitation, income, social security and employment Tax
withholding for all types of compensation).
 
     4.4 No Conflict with Other Instrument.  The consummation of the
transactions contemplated by this Agreement will not result in a breach of or
constitute a Default (without regard to the giving of notice or the passage of
time) under any material Contract, indenture, mortgage, deed of trust or other
material agreement or instrument to which BancGroup or any of its Subsidiaries
is a party or by which they or their Assets may be bound; will not conflict with
any provision of the restated certificate of incorporation or bylaws of
BancGroup or the articles of incorporation or bylaws of any of its Subsidiaries;
and will not violate any provision of any Law, regulation, judgment or decree
binding on them or any of their Assets.
 
                                       A-9
<PAGE>   133
 
     4.5 Absence of Material Adverse Change.  Since the date of the most recent
balance sheet provided under section 4.3(a)(i) above, there have been no events,
changes or occurrences which have had or are reasonably likely to have,
individually or in the aggregate, a Material Adverse Effect on BancGroup.
 
     4.6 Approval of Agreement.  The board of directors of BancGroup has, or
will have prior to the Effective Date, approved this Agreement and the
transactions contemplated by it and has, or will have prior to the Effective
Date, authorized the execution and delivery by BancGroup of this Agreement. This
Agreement constitutes the legal, valid and binding obligation of BancGroup,
enforceable against it in accordance with its terms. Approval of this Agreement
by the stockholders of BancGroup is not required by applicable Law. Subject to
the matters referred to in section 8.2, BancGroup has full power, authority and
legal right to enter into this Agreement and to consummate the transactions
contemplated by this Agreement. BancGroup has no Knowledge of any fact or
circumstance under which the appropriate regulatory approvals required by
section 8.2 will not be granted without the imposition of material conditions or
material delays.
 
     4.7 Tax Treatment.  BancGroup has no present plan to sell or otherwise
dispose of any of the Assets of Acquired Corporation, subsequent to the Merger,
and BancGroup intends to continue the historic business of Acquired Corporation.
 
     4.8 Title and Related Matters.  BancGroup has good and marketable title to
all the properties, interests in properties and Assets, real and personal, that
are material to the business of BancGroup, reflected in the most recent balance
sheet referred to in section 4.3(a), or acquired after the date of such balance
sheet (except properties, interests and Assets sold or otherwise disposed of
since such date, in the ordinary course of business), free and clear of all
mortgages, Liens, pledges, charges or encumbrances except (i) mortgages and
other encumbrances referred to in the notes of such balance sheet, (ii) liens
for current Taxes not yet due and payable and (iii) such imperfections of title
and easements as do not materially detract from or interfere with the present
use of the properties subject thereto or affected thereby, or otherwise
materially impair present business operations at such properties. To the
Knowledge of BancGroup, the material structures and equipment of BancGroup
comply in all material respects with the requirements of all applicable Laws.
 
     4.9 Subsidiaries.  Each Subsidiary of BancGroup has been duly incorporated
and is validly existing as a corporation in good standing under the Laws of the
jurisdiction of its incorporation and each Subsidiary has been duly qualified as
a foreign corporation to transact business and is in good standing under the
Laws of each other jurisdiction in which it owns or leases properties, or
conducts any business so as to require such qualification and in which the
failure to be duly qualified could have a Material Adverse Effect upon BancGroup
and its Subsidiaries considered as one enterprise; each of the banking
Subsidiaries of BancGroup has its deposits fully insured by the Federal Deposit
Insurance Corporation to the extent provided by the Federal Deposit Insurance
Act; and the businesses of the non-bank Subsidiaries of BancGroup are permitted
to subsidiaries of registered bank holding companies.
 
     4.10 Contracts.  Neither BancGroup nor any of its Subsidiaries is in
violation of its respective certificate of incorporation or bylaws or in Default
in the performance or observance of any material obligation, agreement, covenant
or condition contained in any Contract, indenture, mortgage, loan agreement,
note, lease or other instrument to which it is a party or by which it or its
property may be bound.
 
     4.11 Litigation.  Except as disclosed in or reserved for in BancGroup's
financial statements, there is no Litigation before or by any court or Agency,
domestic or foreign, now pending, or, to the Knowledge of BancGroup, threatened
against or affecting BancGroup or any of its Subsidiaries (nor is BancGroup
aware of any facts which could give rise to any such Litigation) which is
required to be disclosed in the Registration Statement (other than as disclosed
therein), or which is likely to have any Material Adverse Effect or prospective
Material Adverse Effect, or which is likely to materially and adversely affect
the properties or Assets thereof or which is likely to materially affect or
delay the consummation of the transactions contemplated by this Agreement; all
pending legal or governmental proceedings to which BancGroup or any Subsidiary
is a party or of which any of their properties is the subject which are not
described in the Registration Statement, including ordinary routine litigation
incidental to the business, are, considered in the aggregate, not material; and
neither BancGroup nor any of its Subsidiaries have any contingent obligations
 
                                      A-10
<PAGE>   134
 
which could be considered material to BancGroup and its Subsidiaries considered
as one enterprise which are not disclosed in the Registration Statement as it
may be amended or supplemented.
 
     4.12 Compliance.  BancGroup and its Subsidiaries, in the conduct of their
businesses, are to the Knowledge of BancGroup, in material compliance with all
material federal, state or local Laws applicable to their or the conduct of
their businesses.
 
     4.13 Registration Statement.  At the time the Registration Statement
becomes effective and at the time of the Stockholders' Meeting, the Registration
Statement, including the Proxy Statement which shall constitute a part thereof,
will comply in all material respects with the requirements of the 1933 Act and
the rules and regulations thereunder, will not contain an untrue statement of a
material fact or omit to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading; provided, however, that the representations and warranties
in this subsection shall not apply to statements in or omissions from the Proxy
Statement made in reliance upon and in conformity with information furnished in
writing to BancGroup by Acquired Corporation or any of its representatives
expressly for use in the Proxy Statement or information included in the Proxy
Statement regarding the business of Acquired Corporation, its operations, Assets
and capital.
 
     4.14 SEC Filings.  (a) BancGroup has heretofore delivered to Acquired
Corporation copies of BancGroup's: (i) Annual Report on Form 10-K for the fiscal
year ended December 31, 1996; (ii) 1996 Annual Report to Shareholders; (iii)
Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31 and June
30, 1997; and (iv) any reports on Form 8-K, filed by BancGroup with the SEC
since December 31, 1996. Since December 31, 1996, BancGroup has timely filed all
reports and registration statements and the documents required to be filed with
the SEC under the rules and regulations of the SEC and all such reports and
registration statements or other documents have complied in all material
respects, as of their respective filing dates and effective dates, as the case
may be, with all the applicable requirements of the 1933 Act and the 1934 Act.
As of the respective filing and effective dates, none of such reports or
registration statements or other documents contained any untrue statement of a
material fact or omitted to state a material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading.
 
     (b) The documents incorporated by reference into the Registration
Statement, at the time they were filed with the SEC, complied in all material
respects with the requirements of the 1934 Act and Regulations thereunder and
when read together and with the other information in the Registration Statement
will not contain an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading at the time the Registration Statement becomes effective
or at the time of the Stockholders Meeting.
 
     4.15 Form S-4.  The conditions for use of a registration statement on SEC
Form S-4 set forth in the General Instructions on Form S-4 have been or will be
satisfied with respect to BancGroup and the Registration Statement.
 
     4.16 Brokers.  All negotiations relative to this Agreement and the
transactions contemplated by this Agreement have been carried on by BancGroup
directly with Acquired Corporation and without the intervention of any other
person, either as a result of any act of BancGroup or otherwise in such manner
as to give rights to any valid claim against BancGroup for finders fees,
brokerage commissions or other like payments.
 
     4.17 Government Authorization.  BancGroup and its Subsidiaries have all
Permits that, to the Knowledge of BancGroup and its Subsidiaries, are or will be
legally required to enable BancGroup or any of its Subsidiaries to conduct their
businesses in all material respects as now conducted by each of them.
 
     4.18 Absence of Regulatory Communications.  Neither BancGroup nor any of
its Subsidiaries is subject to, or has received during the past three (3) years,
any written communication directed specifically to it from any Agency to which
it is subject or pursuant to which such Agency has imposed or has indicated it
may impose any material restrictions on the operations of it or the business
conducted by it or in which such Agency has raised a material question
concerning the condition, financial or otherwise, of such company.
 
                                      A-11
<PAGE>   135
 
     4.19 Disclosure.  No representation or warranty, or any statement or
certificate furnished or to be furnished to Acquired Corporation by BancGroup,
contains or will contain any untrue statement of a material fact, or omits or
will omit to state a material fact necessary to make the statements contained in
this Agreement or in any such statement or certificate not misleading.
 
                                   ARTICLE 5
 
       REPRESENTATIONS, WARRANTIES AND COVENANTS OF ACQUIRED CORPORATION
 
     Acquired Corporation represents, warrants and covenants to and with
BancGroup, as follows:
 
     5.1 Organization.  Acquired Corporation is a Florida corporation, and the
Bank is a Florida state bank. Each Acquired Corporation Company is duly
organized, validly existing and in good standing under the respective Laws of
its jurisdiction of incorporation and has all requisite power and authority to
carry on its business as it is now being conducted and is qualified to do
business in every jurisdiction in which the character and location of the Assets
owned by it or the nature of the business transacted by it requires
qualification or in which the failure to qualify could, individually, or in the
aggregate, have a Material Adverse Effect.
 
     5.2 Capital Stock.  (i) As of the date of this Agreement, the authorized
capital stock of Acquired Corporation consisted of 2,000,000 shares of common
stock, $0.01 par value per share, 1,779,600 shares of which are issued and
outstanding. All of such shares which are outstanding are validly issued, fully
paid and nonassessable and not subject to preemptive rights. Acquired
Corporation has 190,500 shares of its common stock subject to exercise at any
time pursuant to stock options under its stock option plans. Except for the
foregoing, Acquired Corporation does not have any other arrangements or
commitments obligating it to issue shares of its capital stock or any securities
convertible into or having the right to purchase shares of its capital stock,
including the grant or issuance of Acquired Corporation Options.
 
     5.3 Subsidiaries.  Except as set forth on Schedule 5.3, Acquired
Corporation has no direct Subsidiaries other than the Bank, and there are no
Subsidiaries of the Bank. Acquired Corporation owns all of the issued and
outstanding capital stock of the Bank free and clear of any liens, claims or
encumbrances of any kind. All of the issued and outstanding shares of capital
stock of the Subsidiaries have been validly issued and are fully paid and
nonassessable. As of the date of this Agreement, there were 200,000 shares of
the common stock, par value $10.00 per share, authorized of the Bank, 150,000 of
which are issued and outstanding and wholly owned by Acquired Corporation. The
Bank has no arrangements or commitments obligating it to issue shares of its
capital stock or any securities convertible into or having the right to purchase
shares of its capital stock.
 
     5.4 Financial Statements; Taxes  (a) Acquired Corporation has delivered to
BancGroup copies of the following financial statements of Acquired Corporation:
 
          (i) Consolidated statements of financial condition as of December 31,
     1995, and December 31, 1996, and as of June 30, 1997;
 
          (ii) Consolidated statements of income for each of the three years
     ended December 31, 1994, 1995 and 1996, and for the six months ended June
     30, 1997; and
 
          (iii) Consolidated statements of stockholders' equity for each of the
     three years ended December 31, 1994, 1995, and 1996, and for the six months
     ended June 30, 1997.
 
     All of the foregoing financial statements are in all material respects in
accordance with the books and records of Acquired Corporation and have been
prepared in accordance with GAAP applied on a consistent basis throughout the
periods indicated, except for changes required by GAAP, all as more particularly
set forth in the notes to such statements. Each of such balance sheets presents
fairly as of its date the financial condition of Acquired Corporation. Except as
and to the extent reflected or reserved against in such balance sheets
(including the notes thereto), Acquired Corporation did not have, as of the date
of such balance sheets, any material Liabilities or obligations (absolute or
contingent) of a nature customarily reflected in a balance sheet or the notes
thereto. The statements of income, stockholders' equity and cash flows present
fairly the
 
                                      A-12
<PAGE>   136
 
results of operation, changes in shareholders equity and cash flows of Acquired
Corporation for the periods indicated. The foregoing representations, insofar as
they relate to the unaudited interim financial statements of Acquired
Corporation for the six months ended June 30, 1997, are subject in all cases to
normal recurring year-end adjustments and the omission of footnote disclosure.
 
     (b) Except as set forth on Schedule 5.4(b), all Tax returns required to be
filed by or on behalf of Acquired Corporation have been timely filed (or
requests for extensions therefor have been timely filed and granted and have not
expired), and all returns filed are complete and accurate in all material
respects. All Taxes shown on these returns to be due and all additional
assessments received have been paid. The amounts recorded for Taxes on the
balance sheets provided under section 5.4(a) are, to the Knowledge of Acquired
Corporation, sufficient in all material respects for the payment of all unpaid
federal, state, county, local, foreign and other Taxes (including any interest
or penalties) of Acquired Corporation accrued for or applicable to the period
ended on the dates thereof, and all years and periods prior thereto and for
which Acquired Corporation may at such dates have been liable in its own right
or as a transferee of the Assets of, or as successor to, any other corporation
or other party. No audit, examination or investigation is presently being
conducted or, to the Knowledge of Acquired Corporation, threatened by any taxing
authority which is likely to result in a material Tax Liability, no material
unpaid Tax deficiencies or additional liability of any sort has been proposed by
any governmental representative and no agreements for extension of time for the
assessment of any material amount of Tax have been entered into by or on behalf
of Acquired Corporation. Acquired Corporation has not executed an extension or
waiver of any statute of limitations on the assessment or collection of any Tax
due that is currently in effect.
 
     (c) Each Acquired Corporation Company has withheld from its employees (and
timely paid to the appropriate governmental entity) proper and accurate amounts
for all periods in material compliance with all Tax withholding provisions of
applicable federal, state, foreign and local Laws (including without limitation,
income, social security and employment Tax withholding for all types of
compensation). Each Acquired Corporation Company is in compliance with, and its
records contain all information and documents (including properly completed IRS
Forms W-9) necessary to comply with, all applicable information reporting and
Tax withholding requirements under federal, state and local Tax Laws, and such
records identify with specificity all accounts subject to backup withholding
under section 3406 of the Code.
 
     5.5 Absence of Certain Changes or Events.  Except as set forth on Schedule
5.5, since the date of the most recent balance sheet provided under section
5.4(a)(i) above, no Acquired Corporation Company has
 
          (a) issued, delivered or agreed to issue or deliver any stock, bonds
     or other corporate securities (whether authorized and unissued or held in
     the treasury) except shares of common stock issued upon the exercise of
     existing Acquired Corporation Options and shares issued as director's
     qualifying shares;
 
          (b) borrowed or agreed to borrow any funds or incurred, or become
     subject to, any Liability (absolute or contingent) except borrowings,
     obligations (including purchase of federal funds) and Liabilities incurred
     in the ordinary course of business and consistent with past practice;
 
          (c) paid any material obligation or Liability (absolute or contingent)
     other than current Liabilities reflected in or shown on the most recent
     balance sheet referred to in section 5.4(a)(i) and current Liabilities
     incurred since that date in the ordinary course of business and consistent
     with past practice;
 
          (d) declared or made, or agreed to declare or make, any payment of
     dividends or distributions of any Assets of any kind whatsoever to
     shareholders, or purchased or redeemed, or agreed to purchase or redeem,
     directly or indirectly, or otherwise acquire, any of its outstanding
     securities;
 
          (e) except in the ordinary course of business, sold or transferred, or
     agreed to sell or transfer, any of its Assets, or canceled, or agreed to
     cancel, any debts or claims;
 
          (f) except in the ordinary course of business, entered or agreed to
     enter into any agreement or arrangement granting any preferential rights to
     purchase any of its Assets, or requiring the consent of any party to the
     transfer and assignment of any of its Assets;
 
                                      A-13
<PAGE>   137
 
          (g) suffered any Losses or waived any rights of value which in either
     event in the aggregate are material considering its business as a whole;
 
          (h) except in the ordinary course of business, made or permitted any
     amendment or termination of any Contract, agreement or license to which it
     is a party if such amendment or termination is material considering its
     business as a whole;
 
          (i) except in accordance with normal and usual practice, made any
     accrual or arrangement for or payment of bonuses or special compensation of
     any kind or any severance or termination pay to any present or former
     officer or employee;
 
          (j) except in accordance with normal and usual practice, increased the
     rate of compensation payable to or to become payable to any of its officers
     or employees or made any material increase in any profit sharing, bonus,
     deferred compensation, savings, insurance, pension, retirement or other
     employee benefit plan, payment or arrangement made to, for or with any of
     its officers or employees;
 
          (k) received notice or had Knowledge or reason to believe that any of
     its substantial customers has terminated or intends to terminate its
     relationship, which termination would have a Material Adverse Effect on its
     financial condition, results of operations, business, Assets or properties;
 
          (l) failed to operate its business in the ordinary course so as to
     preserve its business intact and to preserve the goodwill of its customers
     and others with whom it has business relations;
 
          (m) entered into any other material transaction other than in the
     ordinary course of business; or
 
          (n) agreed in writing, or otherwise, to take any action described in
     clauses (a) through (m) above.
 
     Between the date hereof and the Effective Date, no Acquired Corporation
Company, without the express written approval of BancGroup, will do any of the
things listed in clauses (a) through (n) of this section 5.5 except as permitted
therein or as contemplated in this Agreement, and no Acquired Corporation
Company will enter into or amend any material Contract, other than Loans or
renewals thereof entered into in the ordinary course of business, without the
express written consent of BancGroup.
 
     5.6 Title and Related Matters.  (a) Title.  Acquired Corporation has good
and marketable title to all the properties, interest in properties and Assets,
real and personal, that are material to the business of Acquired Corporation,
reflected in the most recent balance sheet referred to in section 5.4(a)(i), or
acquired after the date of such balance sheet (except properties, interests and
Assets sold or otherwise disposed of since such date, in the ordinary course of
business), free and clear of all mortgages, Liens, pledges, charges or
encumbrances except (i) mortgages and other encumbrances referred to in the
notes to such balance sheet, (ii) Liens for current Taxes not yet due and
payable and (iii) such imperfections of title and easements as do not materially
detract from or interfere with the present use of the properties subject thereto
or affected thereby, or otherwise materially impair present business operations
at such properties. To the Knowledge of Acquired Corporation, the material
structures and equipment of each Acquired Corporation Company comply in all
material respects with the requirements of all applicable Laws.
 
     (b) Leases.  Schedule 5.6(b) sets forth a list and description of all real
and personal property owned or leased by any Acquired Corporation Company,
either as lessor or lessee.
 
     (c) Personal Property.  Schedule 5.6(c) sets forth a depreciation schedule
of each Acquired Corporation Company's fixed Assets as of July 31, 1997.
 
     (d) Computer Hardware and Software.  Schedule 5.6(d) contains a description
of all agreements relating to data processing computer software and hardware now
being used in the business operations of any Acquired Corporation Company.
Acquired Corporation is not aware of any defects, irregularities or problems
with any of its computer hardware or software which renders such hardware or
software unable to satisfactorily perform the tasks and functions to be
performed by them in the business of any Acquired Corporation Company.
 
     5.7 Commitments.  Except as set forth in Schedule 5.7, no Acquired
Corporation Company is a party to any oral or written (i) Contracts for the
employment of any officer or employee which is not terminable on 30 days' (or
less) notice, (ii) profit sharing, bonus, deferred compensation, savings, stock
option, severance
 
                                      A-14
<PAGE>   138
 
pay, pension or retirement plan, agreement or arrangement, (iii) loan agreement,
indenture or similar agreement relating to the borrowing of money by such party,
(iv) guaranty of any obligation for the borrowing of money or otherwise,
excluding endorsements made for collection, and guaranties made in the ordinary
course of business, (v) consulting or other similar material Contracts, (vi)
collective bargaining agreement, (vii) agreement with any present or former
officer, director or shareholder of such party, or (viii) other Contract,
agreement or other commitment which is material to the business, operations,
property, prospects or Assets or to the condition, financial or otherwise, of
any Acquired Corporation Company. Complete and accurate copies of all Contracts,
plans and other items so listed have been made or will be made available to
BancGroup for inspection.
 
     5.8 Charter and Bylaws.  Schedule 5.8 contains true and correct copies of
the articles of incorporation and bylaws of each Acquired Corporation Company,
including all amendments thereto, as currently in effect. There will be no
changes in such articles of incorporation or bylaws prior to the Effective Date,
without the prior written consent of BancGroup.
 
     5.9 Litigation.  There is no Litigation (whether or not purportedly on
behalf of Acquired Corporation) pending or, to the Knowledge of Acquired
Corporation, threatened against or affecting any Acquired Corporation Company
(nor does Acquired Corporation have Knowledge of any facts which are likely to
give rise to any such Litigation) at law or in equity, or before or by any
governmental department, commission, board, bureau, agency or instrumentality,
domestic or foreign, or before any arbitrator of any kind, which involves the
possibility of any judgment or Liability not fully covered by insurance in
excess of a reasonable deductible amount or which may have a Material Adverse
Effect on Acquired Corporation, and no Acquired Corporation Company is in
Default with respect to any judgment, order, writ, injunction, decree, award,
rule or regulation of any court, arbitrator or governmental department,
commission, board, bureau, agency or instrumentality, which Default would have a
Material Adverse Effect on Acquired Corporation. To the Knowledge of Acquired
Corporation, each Acquired Corporation Company has complied in all material
respects with all material applicable Laws and Regulations including those
imposing Taxes, of any applicable jurisdiction and of all states,
municipalities, other political subdivisions and Agencies, in respect of the
ownership of its properties and the conduct of its business, which, if not
complied with, would have a Material Adverse Effect on Acquired Corporation.
 
     5.10 Material Contract Defaults.  Except as disclosed on Schedule 5.10, no
Acquired Corporation Company is in Default in any material respect under the
terms of any material Contract, agreement, lease or other commitment which is or
may be material to the business, operations, properties or Assets, or the
condition, financial or otherwise, of such company and, to the Knowledge of
Acquired Corporation, there is no event which, with notice or lapse of time, or
both, may be or become an event of Default under any such material Contract,
agreement, lease or other commitment in respect of which adequate steps have not
been taken to prevent such a Default from occurring.
 
     5.11 No Conflict with Other Instrument.  The consummation of the
transactions contemplated by this Agreement will not result in the breach of any
term or provision of or constitute a Default under any material Contract,
indenture, mortgage, deed of trust or other material agreement or instrument to
which any Acquired Corporation Company is a party and will not conflict with any
provision of the charter or bylaws of any Acquired Corporation Company.
 
     5.12 Governmental Authorization.  Each Acquired Corporation Company has all
Permits that, to the Knowledge of Acquired Corporation, are or will be legally
required to enable any Acquired Corporation Company to conduct its business in
all material respects as now conducted by each Acquired Corporation Company.
 
     5.13 Absence of Regulatory Communications.  Except as provided in Schedule
5.13, no Acquired Corporation Company is subject to, nor has any Acquired
Corporation Company received during the past three years, any written
communication directed specifically to it from any Agency to which it is subject
or pursuant to which such Agency has imposed or has indicated it may impose any
material restrictions on the operations of it or the business conducted by it or
in which such Agency has raised any material question concerning the condition,
financial or otherwise, of such company.
 
                                      A-15
<PAGE>   139
 
     5.14 Absence of Material Adverse Change.  To the Knowledge of Acquired
Corporation, since the date of the most recent balance sheet provided under
section 5.4(a)(i), there have been no events, changes or occurrences which have
had, or are reasonably likely to have, individually or in the aggregate, a
Material Adverse Effect on any Acquired Corporation Company.
 
     5.15 Insurance.  Each Acquired Corporation Company has in effect insurance
coverage and bonds with reputable insurers which, in respect to amounts, types
and risks insured, management of Acquired Corporation reasonably believes to be
adequate for the type of business conducted by such company. No Acquired
Corporation Company is liable for any material retroactive premium adjustment.
All insurance policies and bonds are valid, enforceable and in full force and
effect, and no Acquired Corporation Company has received any notice of any
material premium increase or cancellation with respect to any of its insurance
policies or bonds. Within the last three years, no Acquired Corporation Company
has been refused any insurance coverage which it has sought or applied for, and
it has no reason to believe that existing insurance coverage cannot be renewed
as and when the same shall expire, upon terms and conditions as favorable as
those presently in effect, other than possible increases in premiums that do not
result from any extraordinary loss experience. All policies of insurance
presently held or policies containing substantially equivalent coverage will be
outstanding and in full force with respect to each Acquired Corporation Company
at all times from the date hereof to the Effective Date.
 
     5.16 Pension and Employee Benefit Plans.  (a) To the Knowledge of Acquired
Corporation, all employee benefit plans of each Acquired Corporation Company
have been established in compliance with, and such plans have been operated in
material compliance with, all applicable Laws. Except as set forth in Schedule
5.16, no Acquired Corporation Company sponsors or otherwise maintains a "pension
plan" within the meaning of section 3(2) of ERISA or any other retirement plan
other than the Section 401K plan of Acquired Corporation that is intended to
qualify under section 401 of the Code, nor do any unfunded Liabilities exist
with respect to any employee benefit plan, past or present. To the Knowledge of
Acquired Corporation, no employee benefit plan, any trust created thereunder or
any trustee or administrator thereof has engaged in a "prohibited transaction,"
as defined in section 4975 of the Code, which may have a Material Adverse Effect
on the condition, financial or otherwise, of any Acquired Corporation Company.
 
     (b) To the Knowledge of Acquired Corporation, no amounts payable to any
employee of any Acquired Corporation Company will fail to be deductible for
federal income tax purposes by virtue of Section 280G of the Code and
regulations thereunder.
 
     5.17 Buy-Sell Agreement.  To the Knowledge of Acquired Corporation, there
are no agreements among any of its shareholders granting to any person or
persons a right of first refusal in respect of the sale, transfer, or other
disposition of shares of outstanding securities by any shareholder of Acquired
Corporation, any similar agreement or any voting agreement or voting trust in
respect of any such shares.
 
     5.18 Brokers.  All negotiations relative to this Agreement and the
transactions contemplated by this Agreement have been carried on by Acquired
Corporation directly with BancGroup and without the intervention of any other
person, either as a result of any act of Acquired Corporation, or otherwise, in
such manner as to give rise to any valid claim against Acquired Corporation for
a finder's fee, brokerage commission or other like payment.
 
     5.19 Approval of Agreements.  The board of directors of Acquired
Corporation has approved this Agreement and the transactions contemplated by
this Agreement and has authorized the execution and delivery by Acquired
Corporation of this Agreement. Subject to the matters referred to in section
8.2, Acquired Corporation has full power, authority and legal right to enter
into this Agreement, and, upon appropriate vote of the shareholders of Acquired
Corporation in accordance with this Agreement, Acquired Corporation shall have
full power, authority and legal right to consummate the transactions
contemplated by this Agreement.
 
     5.20 Disclosure.  No representation or warranty, nor any statement or
certificate furnished or to be furnished to BancGroup by Acquired Corporation,
contains or will contain any untrue statement of a material
 
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<PAGE>   140
 
fact, or omits or will omit to state a material fact necessary to make the
statements contained in this Agreement or in any such statement or certificate
not misleading.
 
     5.21 Registration Statement.  At the time the Registration Statement
becomes effective and at the time of the Stockholders Meeting, the Registration
Statement, including the Proxy Statement which shall constitute part thereof,
will not contain an untrue statement of a material fact or omit to state a
material fact necessary in order to make the statements therein, in the light of
the circumstances under which they were made, not misleading; provided, however,
that the representations and warranties in this section shall only apply to
statements in or omissions from the Proxy Statement relating to descriptions of
the business of Acquired Corporation, its Assets, properties, operations, and
capital stock or to information furnished in writing by Acquired Corporation or
its representatives expressly for inclusion in the Proxy Statement.
 
     5.22 Loans; Adequacy of Allowance for Loan Losses.  All reserves for loan
losses shown on the most recent financial statements furnished by Acquired
Corporation have been calculated in accordance with prudent and customary
banking practices and are adequate in all material respects to reflect the risk
inherent in the loans of Acquired Corporation. Acquired Corporation has no
Knowledge of any fact which is likely to require a future material increase in
the provision for loan losses or a material decrease in the loan loss reserve
reflected in such financial statements. Each loan reflected as an Asset on the
financial statements of Acquired Corporation is the legal, valid and binding
obligation of the obligor of each loan, enforceable in accordance with its terms
subject to the effect of bankruptcy, insolvency, reorganization, moratorium, or
other similar laws relating to creditors' rights generally and to general
equitable principles and complies with all Laws to which it is subject. Acquired
Corporation does not have in its portfolio any loan exceeding its legal lending
limit, and except as disclosed on Schedule 5.22, Acquired Corporation has no
known significant delinquent, substandard, doubtful, loss, nonperforming or
problem loans.
 
     5.23 Environmental Matters.  Except as provided in Schedule 5.23, to the
Knowledge of Acquired Corporation, each Acquired Corporation Company is in
material compliance with all Laws and other governmental requirements relating
to the generation, management, handling, transportation, treatment, disposal,
storage, delivery, discharge, release or emission of any waste, pollution, or
toxic, hazardous or other substance (the "Environmental Laws"), and Acquired
Corporation has no Knowledge that any Acquired Corporation Company has not
complied with all regulations and requirements promulgated by the Occupational
Safety and Health Administration that are applicable to any Acquired Corporation
Company. To the Knowledge of Acquired Corporation, there is no Litigation
pending or threatened with respect to any violation or alleged violation of the
Environmental Laws. To the Knowledge of Acquired Corporation, with respect to
Assets of any Acquired Corporation Company, including any Loan Property, (i)
there has been no spillage, leakage, contamination or release of any substances
for which the appropriate remedial action has not been completed; (ii) no owned
or leased property is contaminated with or contains any hazardous substance or
waste; and (iii) there are no underground storage tanks on any premises owned or
leased by any Acquired Corporation Company. Acquired Corporation has no
Knowledge of any facts which might suggest that any Acquired Corporation Company
has engaged in any management practice with respect to any of its past or
existing borrowers which could reasonably be expected to subject any Acquired
Corporation Company to any Liability, either directly or indirectly, under the
principles of law as set forth in United States v. Fleet Factors Corp., 901 F.2d
1550 (11th Cir. 1990) or any similar principles. Moreover, to the Knowledge of
Acquired Corporation, no Acquired Corporation Company has extended credit,
either on a secured or unsecured basis, to any person or other entity engaged in
any activities which would require or requires such person or entity to obtain
any Permits which are required under any Environmental Law which has not been
obtained.
 
     5.24 Transfer of Shares.  Acquired Corporation has no Knowledge of any plan
or intention on the part of Acquired Corporation's shareholders to sell or
otherwise dispose of any of the BancGroup Common Stock to be received by them in
the Merger that would reduce such shareholders' ownership to a number of shares
having, in the aggregate, a fair market value of less than fifty (50%) percent
of the total fair market value of Acquired Corporation common stock outstanding
immediately before the Merger.
 
     5.25 Collective Bargaining.  There are no labor contracts, collective
bargaining agreements, letters of undertakings or other arrangements, formal or
informal, between any Acquired Corporation Company and any
 
                                      A-17
<PAGE>   141
 
union or labor organization covering any Acquired Corporation Company's
employees and none of said employees are represented by any union or labor
organization.
 
     5.26 Labor Disputes.  To the Knowledge of Acquired Corporation, each
Acquired Corporation Company is in material compliance with all federal and
state laws respecting employment and employment practices, terms and conditions
of employment, wages and hours. No Acquired Corporation Company is or has been
engaged in any unfair labor practice, and, to the Knowledge of Acquired
Corporation, no unfair labor practice complaint against any Acquired Corporation
Company is pending before the National Labor Relations Board. Relations between
management of each Acquired Corporation Company and the employees are amicable
and there have not been, nor to the Knowledge of Acquired Corporation, are there
presently, any attempts to organize employees, nor to the Knowledge of Acquired
Corporation, are there plans for any such attempts.
 
     5.27 Derivative Contracts.  No Acquired Corporation Company is a party to
or has agreed to enter into a swap, forward, future, option, cap, floor or
collar financial contract, or any other interest rate or foreign currency
protection contract or derivative security not included in Acquired
Corporation's financial statements delivered under section 5.4 hereof which is a
financial derivative contract (including various combinations thereof).
 
                                   ARTICLE 6
 
                              ADDITIONAL COVENANTS
 
     6.1 Additional Covenants of BancGroup.  BancGroup covenants to and with
Acquired Corporation as follows:
 
          (a) Registration Statement and Other Filings.  As soon as reasonably
     practicable after the execution of this Agreement, BancGroup shall prepare
     and file with the SEC the Registration Statement on Form S-4 (or such other
     form as may be appropriate) and all amendments and supplements thereto, in
     form reasonably satisfactory to Acquired Corporation and its counsel, with
     respect to the Common Stock to be issued pursuant to this Agreement.
     BancGroup shall use reasonable good faith efforts to prepare all necessary
     filings with any Agencies which may be necessary for approval to consummate
     the transactions contemplated by this Agreement and shall use its
     reasonable efforts to cause the Registration Statement to become effective
     under the 1933 Act as soon as reasonably practicable after the filing
     thereof and take any action required to be taken under other applicable
     securities Laws in connection with the issuance of the shares of BancGroup
     Common Stock upon consummation of the Merger. As soon as reasonably
     practicable after the execution of this Agreement. Copies of all such
     filings shall be furnished in advance to Acquired Corporation and its
     counsel.
 
          (b) Blue Sky Permits.  BancGroup shall use its best efforts to obtain,
     prior to the effective date of the Registration Statement, all necessary
     state securities Law or "blue sky" Permits and approvals required to carry
     out the transactions contemplated by this Agreement.
 
          (c) Financial Statements.  BancGroup shall furnish to Acquired
     Corporation:
 
             (i) As soon as practicable and in any event within forty-five (45)
        days after the end of each quarterly period (other than the last
        quarterly period) in each fiscal year, consolidated statements of
        operations of BancGroup for such period and for the period beginning at
        the commencement of the fiscal year and ending at the end of such
        quarterly period, and a consolidated statement of financial condition of
        BancGroup as of the end of such quarterly period, setting forth in each
        case in comparative form figures for the corresponding periods ending in
        the preceding fiscal year, subject to changes resulting from year-end
        adjustments;
 
             (ii) Promptly upon receipt thereof, copies of all audit reports
        submitted to BancGroup by independent auditors in connection with each
        annual, interim or special audit of the books of BancGroup made by such
        accountants;
 
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<PAGE>   142
 
             (iii) As soon as practicable, copies of all such financial
        statements and reports as it shall send to its stockholders and of such
        regular and periodic reports as BancGroup may file with the SEC or any
        other Agency; and
 
             (iv) With reasonable promptness, such additional financial data as
        Acquired Corporation may reasonably request.
 
          (d) No Control of Acquired Corporation by BancGroup.  Notwithstanding
     any other provision hereof, until the Effective Date, the authority to
     establish and implement the business policies of Acquired Corporation shall
     continue to reside solely in Acquired Corporation's officers and board of
     directors.
 
          (e) Listing.  Prior to the Effective Date, BancGroup shall use its
     reasonable efforts to list the shares of BancGroup Common Stock to be
     issued in the Merger on the NYSE or other quotations system on which such
     shares are primarily traded.
 
          (f) Employee Benefit Matters.  (i) On the Effective Date, all
     employees of any Acquired Corporation Company shall, at BancGroup's option,
     either become employees of the Resulting Corporation or its Subsidiaries or
     be entitled to severance benefits in accordance with Colonial Bank's
     severance policy as of the date of this Agreement. All employees of any
     Acquired Corporation Company who become employees of the Resulting
     Corporation or its Subsidiaries on the Effective Date shall be entitled, to
     the extent permitted by applicable Law, to participate in all benefit plans
     of Colonial Bank to the same extent as Colonial Bank employees, except as
     stated otherwise in this section. Employees of any Acquired Corporation
     Company who become employees of the Resulting Corporation or its
     Subsidiaries on the Effective Date shall be allowed to participate as of
     the Effective Date in the medical and dental benefits plan of Colonial Bank
     as new employees of Colonial Bank, and the time of employment of such
     employees who are employed at least 30 hours per week with any Acquired
     Corporation Company as of the Effective Date shall be counted as employment
     under such dental and medical plans of Colonial Bank for purposes of
     calculating any 30 day waiting period and pre-existing condition
     limitations. To the extent permitted by applicable Law, the period of
     service with the appropriate Acquired Corporation Company of all employees
     who become employees of the Resulting Corporation or its Subsidiaries on
     the Effective Date shall be recognized only for vesting and eligibility
     purposes under Colonial Bank's benefit plans. In addition, if the Effective
     Date falls within an annual period of coverage under any group health plan
     of the Resulting Corporation and its Subsidiaries, each such Acquired
     Corporation Company employee shall be given credit for covered expenses
     paid by that employee under comparable employee benefit plans of the
     Acquired Corporation Company during the applicable coverage period through
     the Effective Date towards satisfaction of any annual deductible limitation
     and out-of-pocket maximum that may apply under that group health plan of
     the Resulting Corporation and its Subsidiaries.
 
             (ii) BancGroup will make every reasonable effort to offer
        alternative positions to Acquired Corporation Company employees who are
        displaced through consolidation.
 
          (g) Indemnification.  (i) Subject to the conditions set forth in the
     succeeding paragraphs, for a period of six years after the Effective Date
     BancGroup shall, and shall cause Colonial Bank to, indemnify, defend and
     hold harmless each person entitled to indemnification from the Acquired
     Corporation (each being an "Indemnified Party") against all liabilities
     arising out of actions or omissions occurring upon or prior to the
     Effective Date (including without limitation the transactions contemplated
     by this Agreement) to the extent authorized under the articles of
     incorporation and bylaws of Acquired Corporation and Florida law.
 
             (ii) Any Indemnified Party wishing to claim indemnification under
        this subsection (g), upon learning of any such liability or Litigation,
        shall promptly notify BancGroup thereof. In the event of any such
        Litigation (whether arising before or after the Effective Date) (i)
        BancGroup or Colonial Bank shall have the right to assume the defense
        thereof with counsel reasonably acceptable to such Indemnified Party
        and, upon assumption of such defense, BancGroup shall not be liable to
        such Indemnified Parties for any legal expenses of other counsel or any
        other expenses subsequently
 
                                      A-19
<PAGE>   143
 
        incurred by such Indemnified Parties in connection with the defense
        thereof, except that if BancGroup or Colonial Bank elects not to assume
        such defense or counsel for the Indemnified Parties advises that there
        are substantive issues which raise conflicts of interest between
        BancGroup and the Indemnified Parties, the Indemnified Parties may
        retain counsel satisfactory to them, and BancGroup or Colonial Bank
        shall pay all reasonable fees and expenses of such counsel for the
        Indemnified Parties promptly as statements therefor are received;
        provided, that BancGroup shall be obligated pursuant to this subsection
        to pay for only one firm of counsel for all Indemnified Parties in any
        jurisdiction, (ii) the Indemnified Parties will cooperate in the defense
        of any such Litigation; and (iii) BancGroup shall not be liable for any
        settlement effected without its prior consent; and provided further
        provided that BancGroup and Colonial Bank shall not have any obligation
        hereunder to any Indemnified Party when and if a court of competent
        jurisdiction shall determine, and such determination shall have become
        final, that the indemnification of such Indemnified Party in the manner
        contemplated hereby is prohibited by applicable Law.
 
             (iii) In consideration of and as a condition precedent to the
        effectiveness of the indemnification obligations provided by BancGroup
        in this section to a director or officer of the Acquired Corporation,
        such director or officer of the Acquired Corporation shall have
        delivered to BancGroup on or prior to the Effective Date a letter in
        form reasonably satisfactory to BancGroup concerning claims such
        directors or officers may have against Acquired Corporation. In the
        letter, the directors of officers shall: (i) acknowledge the assumption
        by BancGroup as of the Effective Date of all Liability (to the extent
        Acquired Corporation is so liable) for claims for indemnification
        arising under section 6.1(g) hereof; (ii) affirm that they do not have
        nor are they aware of any claims they might have (other than those
        referred to in the following clause (iii)) against Acquired Corporation;
        (iii) identify any claims or any facts or circumstances of which they
        are aware that could give rise to a claim for indemnification under
        section 6.1(g)(i) hereof; and (iv) release as of the Effective Date any
        and all claims that they may have against any Acquired Corporation
        Company other than (A) those referred to in the foregoing clause (iii)
        and disclosed in the letter of the director or officer, (B) claims by
        third parties which have not yet been asserted against such director or
        officer (other than claims arising from facts and circumstances of which
        such director or officer is aware but which are not disclosed in such
        director or executive officer's letter), (C) claims by third parties
        arising from any transaction contemplated by this Agreement or disclosed
        in any schedule to this Agreement, and (D) claims by third parties
        arising in the ordinary course of business of any Acquired Corporation
        Company after the date of the letter.
 
             (iv) Acquired Corporation hereby represents and warrants to
        BancGroup that it has no Knowledge of any claim, pending or threatened,
        or of any facts or circumstances that could give rise to any obligation
        by BancGroup to provide the indemnification required by this section
        6.1(g) other than as disclosed in the letters of the directors and
        executive officers referred to in section 6.1(g)(iii) hereof or
        described in any schedule to this Agreement and claims arising from any
        transaction contemplated by this Agreement.
 
          (h) Indexed Executive Salary Continuation Plan Agreements.  BancGroup
     acknowledges and agrees to abide by the terms of those certain Indexed
     Executive Salary Continuation Plan Agreements, dated as of January 9, 1995,
     which have been entered into by and between Acquired Corporation and James
     L. Hewitt, Charles W. Hall, David M. McLeod, David G. Powers and M. Alan
     Rowe, respectively.
 
     6.2 Additional Covenants of Acquired Corporation.  Acquired Corporation
covenants to and with BancGroup as follows:
 
          (a) Operations.  (i) Acquired Corporation will conduct its business
     and the business of each Acquired Corporation Company in a proper and
     prudent manner and will use its best efforts to maintain its relationships
     with its depositors, customers and employees. No Acquired Corporation
     Company will engage in any material transaction outside the ordinary course
     of business or make any material change in its accounting policies or
     methods of operation, nor will Acquired Corporation permit the occurrence
     of
 
                                      A-20
<PAGE>   144
 
     any change or event which would render any of the representations and
     warranties in Article 5 hereof untrue in any material respect at and as of
     the Effective Date with the same effect as though such representations and
     warranties had been made at and as of such Effective Date. Acquired
     Corporation shall contact any person who may be required to execute an
     undertaking under Section 10.5 hereof to request such undertaking and shall
     take all such reasonable steps as are necessary to obtain such undertaking.
     Acquired Corporation will take no action that would prevent or impede the
     Merger from qualifying (i) for pooling of interests accounting treatment or
     (ii) as a tax-free reorganization within the meaning of Section 368 of the
     Code.
 
             (ii) If requested by BancGroup, Acquired Corporation shall use its
        best efforts to cause all officers and directors that own any stock of
        Acquired Corporation and all other shareholders of Acquired Corporation
        who own more than five percent (5%) of Acquired Corporation Stock, to
        execute an acknowledgment that such person has no present plan,
        intention, or binding commitment to sell or otherwise dispose of the
        BancGroup Common Stock to be received in the Merger within twelve (12)
        months after the Effective Date.
 
          (b) Stockholders Meeting; Best Efforts.  Acquired Corporation will
     cooperate with BancGroup in the preparation of the Registration Statement
     and any regulatory filings and will cause the Stockholders Meeting to be
     held for the purpose of approving the Merger as soon as practicable after
     the effective date of the Registration Statement, and will use its best
     efforts to bring about the transactions contemplated by this Agreement,
     including stockholder approval of this Agreement, as soon as practicable
     unless this Agreement is terminated as provided herein.
 
          (c) Prohibited Negotiations.  Except with respect to this Agreement
     and the transactions contemplated hereby, no Acquired Corporation Company
     nor any affiliate thereof nor any investment banker, attorney, accountant,
     or other representative (collectively, "Representatives") retained by an
     Acquired Corporation Company shall directly or indirectly solicit any
     Acquisition Proposal by any Person. Except to the extent necessary to
     comply with the fiduciary duties of Acquired Corporation's Board of
     Directors as advised in writing by counsel to such Board of Directors, no
     Acquired Corporation Company or any Representative thereof shall furnish
     any non-public information that it is not legally obligated to furnish,
     negotiate with respect to, or enter into any Contract with respect to, any
     Acquisition Proposal, and each Acquired Corporation Company shall direct
     and use its reasonable efforts to cause all of its Representatives not to
     engage in any of the foregoing, but Acquired Corporation may communicate
     information about such an Acquisition Proposal to its shareholders if and
     to the extent that it is required to do so in order to comply with its
     legal obligations as advised in writing by counsel to such Board of
     Directors. Acquired Corporation shall promptly notify BancGroup orally and
     in writing in the event that any Acquired Corporation Company receives any
     inquiry or proposal relating to any such Acquisition Proposal. Acquired
     Corporation shall immediately cease and cause to be terminated any existing
     activities, discussions, or negotiations with any Persons other than
     BancGroup conducted heretofore with respect to any of the foregoing.
     Acquired Corporation shall enter into the Stock Option Agreement with
     BancGroup dated as of the date of this Agreement.
 
          (d) Director Recommendation.  The members of the Board of Directors of
     Acquired Corporation agree to support publicly the Merger.
 
          (e) Shareholder Voting.  Acquired Corporation shall on the date of
     execution of this Agreement obtain and submit to BancGroup an agreement
     from certain of its directors substantially in the form set forth in
     Exhibit A.
 
          (f) Financial Statements and Monthly Status Reports.  Acquired
     Corporation shall furnish to BancGroup:
 
             (i) As soon as practicable and in any event within 45 days after
        the end of each quarterly period (other than the last quarterly period)
        in each fiscal year, consolidated statements of operations of Acquired
        Corporation for such period and for the period beginning at the
        commencement of the fiscal year and ending at the end of such quarterly
        period, and a consolidated statement of financial condition of Acquired
        Corporation as of the end of such quarterly period, setting forth in
 
                                      A-21
<PAGE>   145
 
        each case in comparative form figures for the corresponding periods
        ending in the preceding fiscal year, subject to changes resulting from
        year-end adjustments;
 
             (ii) Promptly upon receipt thereof, copies of all audit reports
        submitted to Acquired Corporation by independent auditors in connection
        with each annual, interim or special audit of the books of Acquired
        Corporation made by such accountants;
 
             (iii) As soon a practicable, copies of all such financial
        statements and reports as it shall send to its stockholders and of such
        regular and periodic reports as Acquired Corporation may file with the
        SEC or any other Agency;
 
             (iv) With reasonable promptness, such additional financial data as
        BancGroup may reasonably request; and
 
             (v) Within 10 calendar days after the end of each month (or, if the
        financial statements referred to in clause (d) are not then available,
        as soon as possible thereafter) commencing with the next calendar month
        following the date of this Agreement and ending at the Effective Date, a
        written description of (a) any non-compliance with the terms of this
        Agreement, together with its then current estimate of the out-of-pocket
        costs and expenses incurred or reasonably accruable in connection with
        the transactions contemplated by this Agreement; (b) the status, as of
        the date of the report, of all existing or threatened litigation against
        any Acquired Corporation Company; (c) copies of minutes of any meeting
        of the board of directors of any Acquired Corporation Company and any
        committee thereof occurring in the month for which such report is made,
        including all documents presented to the directors at such meetings; and
        (d) monthly financial statements, including a balance sheet and income
        statement.
 
          (g) Fiduciary Duties.  Prior to the Effective Date, (i) no director or
     officer (each an "Executive") of any Acquired Corporation Company shall,
     directly or indirectly, own, manage, operate, join, control, be employed by
     or participate in the ownership, proposed ownership, management, operation
     or control of or be connected in any manner with, any business, corporation
     or partnership which is competitive to the business of any Acquired
     Corporation Company, (ii) all Executives, at all times, shall satisfy their
     fiduciary duties to Acquired Corporation and its Subsidiaries, and (iii)
     such Executives shall not (except as required in the course of his or her
     employment with any Acquired Corporation Company) communicate or divulge
     to, or use for the benefit of himself or herself or any other person, firm,
     association or corporation, without the express written consent of Acquired
     Corporation, any confidential information which is possessed, owned or used
     by or licensed by or to any Acquired Corporation Company or confidential
     information belonging to third parties which any Acquired Corporation
     Company shall be under obligation to keep secret or which may be
     communicated to, acquired by or learned of by the Executive in the course
     of or as a result of his or her employment with any Acquired Corporation
     Company.
 
          (h) Certain Practices.  At the request of BancGroup, (i) Acquired
     Corporation shall consult with BancGroup and advise BancGroup through its
     regional office in Orlando, Florida of all of the Bank's loan requests over
     $500,000 that are not single-family residential loan requests or of any
     other loan request outside the normal course of business, and (ii) Acquired
     Corporation will consult with BancGroup to coordinate various business
     issues on a basis mutually satisfactory to Acquired Corporation and
     BancGroup. Acquired Corporation and the Bank shall not be required to
     undertake any of such activities, however, except as such activities may be
     in compliance with existing Law and Regulations.
 
          (i) Adjustment or Termination of Acquired Corporation Options Held By
     Directors.  Certain directors of Acquired Corporation hold Acquired
     Corporation Options. The terms of the United American Holding Corporation
     Directors' Stock Option Plan (the "Directors' Plan") provide that the
     exercise price of the Acquired Corporation Options shall be reduced by "the
     amount of cash dividends paid on each share" of Acquired Corporation Stock
     between February 1, 1994 and the date the Acquired Stock Options are
     exercised. Acquired Corporation hereby agrees that it shall take whatever
     action is necessary and shall likewise cause its Stock Option Committee (as
     defined in the Directors' Plan) to take
 
                                      A-22
<PAGE>   146
 
     whatever action is necessary to cause either (i) all Acquired Corporation
     Options to be exercised or terminated prior to the Effective Date or (ii)
     the Stock Option Agreements on all Acquired Corporation Options outstanding
     immediately prior to the Effective Date to be appropriately adjusted or
     amended so that the exercise price of each of such Acquired Corporation
     Options becomes fixed, with no further reduction in exercise price
     resulting from cash dividends declared by either the Acquired Corporation
     or BancGroup. In the event of any conflict between this section 5.28 and
     any other provision of this Agreement, including but not limited to Article
     3 -- Conversion of Acquired Corporation Stock, the terms of this Section
     5.28 shall prevail.
 
                                   ARTICLE 7
 
                        MUTUAL COVENANTS AND AGREEMENTS
 
     7.1 Best Efforts; Cooperation.  Subject to the terms and conditions herein
provided, BancGroup and Acquired Corporation each agrees to use its best efforts
promptly to take, or cause to be taken, all actions and do, or cause to be done,
all things necessary, proper or advisable under applicable Laws or otherwise,
including, without limitation, promptly making required deliveries of
stockholder lists and stock transfer reports and attempting to obtain all
necessary Consents and waivers and regulatory approvals, including the holding
of any regular or special board meetings, to consummate and make effective, as
soon as practicable, the transactions contemplated by this Agreement. The
officers of each Party to this Agreement shall fully cooperate with officers and
employees, accountants, counsel and other representatives of the other Parties
not only in fulfilling the duties hereunder of the Party of which they are
officers but also in assisting, directly or through direction of employees and
other persons under their supervision or control, such as stock transfer agents
for the Party, the other Parties requiring information which is reasonably
available from such Party.
 
     7.2 Press Release.  Each Party hereto agrees that, unless approved by the
other Parties in advance, such Party will not make any public announcement,
issue any press release or other publicity or confirm any statements by any
person not a party to this Agreement concerning the transactions contemplated
hereby. Notwithstanding the foregoing, each Party hereto reserves the right to
make any disclosure if such Party, in its reasonable discretion, deems such
disclosure required by Law. In that event, such Party shall provide to the other
Party the text of such disclosure sufficiently in advance to enable the other
Party to have a reasonable opportunity to comment thereon.
 
     7.3 Mutual Disclosure.  Each Party hereto agrees to promptly furnish to
each other Party hereto its public disclosures and filings not precluded from
disclosure by Law including but not limited to call reports, Form 8-K, Form 10-Q
and Form 10-K filings, Y-3 applications, reports on Form Y-6, quarterly or
special reports to shareholders, Tax returns, Form S-8 registration statements
and similar documents.
 
     7.4 Access to Properties and Records.  Each Party hereto shall afford the
officers and authorized representatives of the other Party full access to the
Assets, books and records of such Party in order that such other Parties may
have full opportunity to make such investigation as they shall desire of the
affairs of such Party and shall furnish to such Parties such additional
financial and operating data and other information as to its businesses and
Assets as shall be from time to time reasonably requested. All such information
that may be obtained by any such Party will be held in confidence by such party,
will not be disclosed by such Party or any of its representatives except in
accordance with this Agreement, and will not be used by such Party for any
purpose other than the accomplishment of the Merger as provided herein.
 
     7.5 Notice of Adverse Changes.  Each Party agrees to give written notice
promptly to the other Party upon becoming aware of the occurrence or impending
occurrence of any event or circumstance relating to it or any of its
Subsidiaries which (i) is reasonably likely to have, individually or in the
aggregate, a Material Adverse Effect on it or (ii) would cause or constitute a
material breach of any of its representations, warranties, or covenants
contained herein, and to use its reasonable efforts to prevent or promptly to
remedy the same.
 
                                      A-23
<PAGE>   147
 
                                   ARTICLE 8
 
                    CONDITIONS TO OBLIGATIONS OF ALL PARTIES
 
     The obligations of BancGroup and Acquired Corporation to cause the
transactions contemplated by this Agreement to be consummated shall be subject
to the satisfaction, in the sole discretion of the Party relying upon such
conditions, on or before the Effective Date of all the following conditions,
except as such Parties may waive such conditions in writing:
 
     8.1 Approval by Shareholders.  At the Stockholders Meeting, this Agreement
and the matters contemplated by this Agreement shall have been duly approved by
the vote of the holders of not less than the requisite number of the issued and
outstanding voting securities of Acquired Corporation as is required by
applicable Law and Acquired Corporation's articles of incorporation and bylaws.
 
     8.2 Regulatory Authority Approval.  (a) Orders, Consents and approvals, in
form and substance reasonably satisfactory to BancGroup and Acquired
Corporation, shall have been entered by the Board of Governors of the Federal
Reserve System and other appropriate bank regulatory Agencies (i) granting the
authority necessary for the consummation of the transactions contemplated by
this Agreement, including the merger of the Bank with Colonial Bank as
structured pursuant to section 2.8 hereof and (ii) satisfying all other
requirements prescribed by Law. No Order, Consent or approval so obtained which
is necessary to consummate the transactions as contemplated hereby shall be
conditioned or restricted in a manner which in the reasonable good faith
judgment of the Board of Directors of BancGroup would so materially adversely
impact the economic benefits of the transaction as contemplated by this
Agreement so as to render inadvisable the consummation of the Merger.
 
     (b) Each Party shall have obtained any and all other Consents required for
consummation of the Merger (other than those referred to in Section 8.2(a) of
this Agreement) for the preventing of any Default under any Contract or Permit
of such Party which, if not obtained or made, is reasonably likely to have,
individually or in the aggregate, a Material Adverse Effect on such Party. No
Consent obtained which is necessary to consummate the transactions contemplated
hereby shall be conditioned or restricted in a manner which in the reasonable
judgment of the Board of Directors of BancGroup would so materially adversely
impact the economic or business benefits of the transactions contemplated by
this Agreement so as to render inadvisable the consummation of the Merger.
 
     8.3 Litigation.  There shall be no pending or threatened Litigation in any
court or any pending or threatened proceeding by any governmental commission,
board or Agency, with a view to seeking or in which it is sought to restrain or
prohibit consummation of the transactions contemplated by this Agreement or in
which it is sought to obtain divestiture, rescission or damages in connection
with the transactions contemplated by this Agreement and no investigation by any
Agency shall be pending or threatened which might result in any such suit,
action or other proceeding.
 
     8.4 Registration Statement.  The Registration Statement shall be effective
under the 1933 Act and no stop order suspending the effectiveness of the
Registration Statement shall be in effect; no proceedings for such purpose, or
under the proxy rules of the SEC or any bank regulatory authority pursuant to
the 1934 Act, with respect to the transactions contemplated hereby, shall be
pending before or threatened by the SEC or any bank regulatory authority; and
all approvals or authorizations for the offer of BancGroup Common Stock shall
have been received or obtained pursuant to any applicable state securities Laws,
and no stop order or proceeding with respect to the transactions contemplated
hereby shall be pending or threatened under any such state Law.
 
     8.5 Tax Opinion.  An opinion of Coopers & Lybrand L.L.P., shall have been
received in form and substance reasonably satisfactory to the Acquired
Corporation and BancGroup to the effect that (i) the Merger will constitute a
"reorganization" within the meaning of section 368 of the Code; (ii) no gain or
loss will be recognized by BancGroup or Acquired Corporation; (iii) no gain or
loss will be recognized by the shareholders of Acquired Corporation who receive
shares of BancGroup Common Stock except to the extent of any taxable "boot"
received by such persons from BancGroup, and except to the extent of any
dividends received from Acquired Corporation prior to the Effective Date; (iv)
the basis of the BancGroup Common
 
                                      A-24
<PAGE>   148
 
Stock received in the Merger will be equal to the sum of the basis of the shares
of Acquired Corporation common stock exchanged in the Merger and the amount of
gain, if any, which was recognized by the exchanging Acquired Corporation
shareholder, including any portion treated as a dividend, less the value of
taxable boot, if any, received by such shareholder in the Merger; (v) the
holding period of the BancGroup Common Stock will include the holding period of
the shares of Acquired Corporation common stock exchanged therefor if such
shares of Acquired Corporation common stock were capital assets in the hands of
the exchanging Acquired Corporation shareholder; and (vi) cash received by an
Acquired Corporation shareholder in lieu of a fractional share interest of
BancGroup Common Stock will be treated as having been received as a distribution
in full payment in exchange for the fractional share interest of BancGroup
Common Stock which he or she would otherwise be entitled to receive and will
qualify as capital gain or loss (assuming the Acquired Corporation common stock
was a capital asset in his or her hands as of the Effective Date).
 
                                   ARTICLE 9
 
               CONDITIONS TO OBLIGATIONS OF ACQUIRED CORPORATION
 
     The obligations of Acquired Corporation to cause the transactions
contemplated by this Agreement to be consummated shall be subject to the
satisfaction on or before the Effective Date of all the following conditions
except as Acquired Corporation may waive such conditions in writing:
 
     9.1 Representations, Warranties and Covenants.  Notwithstanding any
investigation made by or on behalf of Acquired Corporation, all representations
and warranties of BancGroup contained in this Agreement shall be true in all
material respects on and as of the Effective Date as if such representations and
warranties were made on and as of such Effective Date, and BancGroup shall have
performed in all material respects all agreements and covenants required by this
Agreement to be performed by it on or prior to the Effective Date.
 
     9.2 Adverse Changes.  There shall have been no changes after the date of
the most recent balance sheet provided under section 4.3(a)(i) hereof in the
results of operations (as compared with the corresponding period of the prior
fiscal year), Assets, Liabilities, financial condition or affairs of BancGroup
which in their total effect constitute a Material Adverse Effect, nor shall
there have been any material changes in the Laws governing the business of
BancGroup which would impair the rights of Acquired Corporation or its
shareholders pursuant to this Agreement.
 
     9.3 Closing Certificate.  In addition to any other deliveries required to
be delivered hereunder, Acquired Corporation shall have received a certificate
from the President or a Vice President and from the Secretary or Assistant
Secretary of BancGroup dated as of the Closing certifying that:
 
          (a) the Board of Directors of BancGroup has duly adopted resolutions
     approving the substantive terms of this Agreement and authorizing the
     consummation of the transactions contemplated by this Agreement and such
     resolutions have not been amended or modified and remain in full force and
     effect;
 
          (b) each person executing this Agreement on behalf of BancGroup is an
     officer of BancGroup holding the office or offices specified therein and
     the signature of each person set forth on such certificate is his or her
     genuine signature;
 
          (c) the certificate of incorporation and bylaws of BancGroup
     referenced in section 4.4 hereof remain in full force and effect;
 
          (d) such persons have no knowledge of a basis for any material claim,
     in any court or before any Agency or arbitration or otherwise against, by
     or affecting BancGroup or the business, prospects, condition (financial or
     otherwise), or Assets of BancGroup which would prevent the performance of
     this Agreement or the transactions contemplated by this Agreement or
     declare the same unlawful or cause the rescission thereof;
 
          (e) to such persons' knowledge, the Proxy Statement delivered to
     Acquired Corporation's shareholders, or any amendments or revisions thereto
     so delivered, as of the date thereof, did not contain or incorporate by
     reference any untrue statement of a material fact or omit to state any
     material fact
 
                                      A-25
<PAGE>   149
 
     required to be stated therein or necessary to make the statements therein
     not misleading in light of the circumstances under which they were made (it
     being understood that such persons need not express a statement as to
     information concerning or provided by Acquired Corporation for inclusion in
     such Proxy Statement); and
 
          (f) the conditions set forth in this Article 9 insofar as they relate
     to BancGroup have been satisfied.
 
     9.4 Opinion of Counsel.  Acquired Corporation shall have received an
opinion of Miller, Hamilton, Snider & Odom, L.L.C., counsel to BancGroup, dated
as of the Closing, substantially in the form set forth in Exhibit B hereto.
 
     9.5 NYSE Listing.  The shares of BancGroup Common Stock to be issued under
this Agreement shall have been approved for listing on the NYSE.
 
     9.6 Other Matters.  There shall have been furnished to such counsel for
Acquired Corporation certified copies of such corporate records of BancGroup and
copies of such other documents as such counsel may reasonably have requested for
such purpose.
 
     9.7 Material Events.  There shall have been no determination by the board
of directors of Acquired Corporation that the transactions contemplated by this
Agreement have become impractical because of any state of war, declaration of a
banking moratorium in the United States or a general suspension of trading on
the NYSE or any other exchange on which BancGroup Common Stock may be traded.
 
                                   ARTICLE 10
 
                     CONDITIONS TO OBLIGATIONS OF BANCGROUP
 
     The obligations of BancGroup to cause the transactions contemplated by this
Agreement to be consummated shall be subject to the satisfaction on or before
the Effective Date of all of the following conditions except as BancGroup may
waive such conditions in writing:
 
     10.1 Representations, Warranties and Covenants.  Notwithstanding any
investigation made by or on behalf of BancGroup, all representations and
warranties of Acquired Corporation contained in this Agreement shall be true in
all material respects on and as of the Effective Date as if such representations
and warranties were made on and as of the Effective Date, and Acquired
Corporation shall have performed in all material respects all agreements and
covenants required by this Agreement to be performed by it on or prior to the
Effective Date.
 
     10.2 Adverse Changes.  There shall have been no changes after the date of
the most recent balance sheet provided under section 5.4(a)(i) hereof in the
results of operations (as compared with the corresponding period of the prior
fiscal year), Assets, Liabilities, financial condition, or affairs of Acquired
Corporation which constitute a Material Adverse Effect, nor shall there have
been any material changes in the Laws governing the business of Acquired
Corporation which would impair BancGroup's rights pursuant to this Agreement.
 
     10.3 Closing Certificate.  In addition to any other deliveries required to
be delivered hereunder, BancGroup shall have received a certificate from
Acquired Corporation executed by the President or Vice President and from the
Secretary or Assistant Secretary of Acquired Corporation dated as of the Closing
certifying that:
 
          (a) the Board of Directors of Acquired Corporation has duly adopted
     resolutions approving the substantive terms of this Agreement and
     authorizing the consummation of the transactions contemplated by this
     Agreement and such resolutions have not been amended or modified and remain
     in full force and effect;
 
          (b) the shareholders of Acquired Corporation have duly adopted
     resolutions approving the substantive terms of the Merger and the
     transactions contemplated thereby and such resolutions have not been
     amended or modified and remain in full force and effect;
 
                                      A-26
<PAGE>   150
 
          (c) each person executing this Agreement on behalf of Acquired
     Corporation is an officer of Acquired Corporation holding the office or
     offices specified therein and the signature of each person set forth on
     such certificate is his or her genuine signature;
 
          (d) the articles of incorporation and bylaws of Acquired Corporation
     and the Bank referenced in section 5.8 hereof remain in full force and
     effect and have not been amended or modified since the date hereof;
 
          (e) to such persons' knowledge, the Proxy Statement delivered to
     Acquired Corporation's shareholders, or any amendments or revisions thereto
     so delivered, as of the date thereof, did not contain or incorporate by
     reference any untrue statement of a material fact or omit to state any
     material fact required to be stated therein or necessary to make the
     statements therein not misleading in light of the circumstances under which
     they were made (it being understood that such persons need only express a
     statement as to information concerning or provided by Acquired Corporation
     for inclusion in such Proxy Statement); and
 
          (f) the conditions set forth in this Article 10 insofar as they relate
     to Acquired Corporation have been satisfied.
 
     10.4 Opinion of Counsel.  BancGroup shall have received an opinion of
Smith, Mackinnon, Greeley, Bowdoin & Edwards, P.A., counsel to Acquired
Corporation, dated as of the Closing, substantially as set forth in Exhibit C
hereto.
 
     10.5 Controlling Shareholders.  Each shareholder of Acquired Corporation
who may be an "affiliate" of Acquired Corporation, within the meaning of Rule
145 of the general rules and regulations under the 1933 Act shall have executed
and delivered an agreement satisfactory to BancGroup to the effect that such
person shall not make a "distribution" (within the meaning of Rule 145) of the
Common Stock which he receives upon the Effective Date and that such Common
Stock will be held subject to all applicable provisions of the 1933 Act and the
rules and regulations of the SEC thereunder, and that such person will not sell
or otherwise reduce risk relative to any shares of BancGroup Common Stock
received in the Merger until financial results concerning at least 30 days of
post-Merger combined operations have been published by BancGroup within the
meaning of Section 201.01 of the SEC's Codification of Financial Reporting
Policies. Acquired Corporation recognizes and acknowledges that BancGroup Common
Stock issued to such persons may bear a legend evidencing the agreement
described above.
 
     10.6 Other Matters.  There shall have been furnished to counsel for
BancGroup certified copies of such corporate records of Acquired Corporation and
copies of such other documents as such counsel may reasonably have requested for
such purpose.
 
     10.7 Dissenters.  The number of shares as to which shareholders of Acquired
Corporation have exercised dissenters rights of appraisal under section 3.6 does
not exceed 10% of the outstanding shares of common stock of Acquired
Corporation.
 
     10.8 Material Events.  There shall have been no determination by the board
of directors of BancGroup that the transactions contemplated by this Agreement
have become impractical because of any state of war, declaration of a banking
moratorium in the United States or general suspension of trading on the NYSE or
any exchange on which BancGroup Common Stock may be traded.
 
     10.9 Employment/Non-compete Agreements.  Employment and/or non-competition
agreements, in form and substance reasonably satisfactory to BancGroup and the
following persons, shall have been executed between BancGroup and James L.
Hewitt, David McLeod and David Powers, respectively.
 
     10.10 Pooling of Interest.  BancGroup shall have received the written
opinion of Coopers & Lybrand L.L.P., that the Merger will qualify for the
pooling of interests method of accounting under generally accepted accounting
principles.
 
                                      A-27
<PAGE>   151
 
                                   ARTICLE 11
 
                 TERMINATION OF REPRESENTATIONS AND WARRANTIES
 
     All representations and warranties provided in Articles 4 and 5 of this
Agreement or in any closing certificate pursuant to Articles 9 and 10 shall
terminate and be extinguished at and shall not survive the Effective Date. All
covenants, agreements and undertakings required by this Agreement to be
performed by any Party hereto following the Effective Date shall survive such
Effective Date and be binding upon such Party. If the Merger is not consummated,
all representations, warranties, obligations, covenants, or agreements hereunder
or in any certificate delivered hereunder relating to the transaction which is
not consummated shall be deemed to be terminated or extinguished, except that
the last sentences of Sections 7.4 and 6.2(c), and Sections 7.2, 13.3, Article
11, Article 12, Article 15 and any applicable definitions of Article 14, shall
survive. Items disclosed in the Exhibits and Schedules attached hereto are
incorporated into this Agreement and form a part of the representations,
warranties, covenants or agreements to which they relate.
 
                                   ARTICLE 12
 
                                    NOTICES
 
     All notices or other communications which are required or permitted
hereunder shall be in writing and sufficient if delivered by hand, by facsimile
transmission, by registered or certified mail, postage pre-paid, or by courier
or overnight carrier, to the persons at the addresses set forth below (or at
such other address as may be provided hereunder), and shall be deemed to have
been delivered as of the date so received:
 
          (a) If to Acquired Corporation to James L. Hewitt, 105 West Colonial
     Drive, Orlando, Florida 32801, facsimile (407) 839-0646, with copies to
     John P. Greeley, Smith, Mackinnon, Greeley, Bowdoin & Edwards, P.A., Citrus
     Center, Suite 800, 255 South Orange Avenue, Orlando, Florida 32801,
     facsimile (407) 843-2448, or as may otherwise be specified by Acquired
     Corporation in writing to BancGroup.
 
          (b) If to BancGroup, to W. Flake Oakley, IV, One Commerce Street,
     Suite 803, Montgomery, Alabama, 36104, facsimile (334) 240-5069, with a
     copy to Hugh C. Nickson, III, Miller, Hamilton, Snider & Odom, L.L.C., One
     Commerce Street, Suite 802, Montgomery, Alabama 36104, facsimile (334)
     265-4533, or as may otherwise be specified in writing by BancGroup to
     Acquired Corporation.
 
                                   ARTICLE 13
 
                            AMENDMENT OR TERMINATION
 
     13.1 Amendment.  This Agreement may be amended by the mutual consent of
BancGroup and Acquired Corporation before or after approval of the transactions
contemplated herein by the shareholders of Acquired Corporation.
 
     13.2 Termination.  This Agreement may be terminated at any time prior to or
on the Effective Date whether before or after action thereon by the shareholders
of Acquired Corporation, as follows:
 
          (a) by the mutual consent of the respective boards of directors of
     Acquired Corporation and BancGroup;
 
          (b) by the board of directors of either Party (provided that the
     terminating Party is not then in material breach of any representation,
     warranty, covenant, or other agreement contained in this Agreement) in the
     event of a material breach by the other Party of any representation or
     warranty contained in this Agreement which cannot be or has not been cured
     within thirty (30) days after the giving of written notice to the breaching
     Party of such breach and which breach would provide the non-breaching Party
     the ability to refuse to consummate the Merger under the standard set forth
     in section 10.1 of this Agreement in the case of BancGroup and section 9.1
     of this Agreement in the case of Acquired Corporation;
 
                                      A-28
<PAGE>   152
 
          (c) by the board of directors of either Party (provided that the
     terminating Party is not then in material breach of any representation,
     warranty, covenant, or other agreement contained in this Agreement) in the
     event of a material breach by the other Party of any covenant or agreement
     contained in this Agreement which cannot be or has not been cured within
     thirty (30) days after the giving of written notice to the breaching Party
     of such breach, or if any of the conditions to the obligations of such
     Party contained in this Agreement in Article 9 as to Acquired Corporation
     or Article 10 as to BancGroup shall not have been satisfied in full; or
 
          (d) by the board of directors of either BancGroup or Acquired
     Corporation if all transactions contemplated by this Agreement shall not
     have been consummated on or prior to April 15, 1998, if the failure to
     consummate the transactions provided for in this Agreement on or before
     such date is not caused by any breach of this Agreement by the Party
     electing to terminate pursuant to this section 13.2(d).
 
     13.3 Damages.  In the event of termination pursuant to section 13.2, this
Agreement shall become void and have no effect, except as provided in Article
11, and except that Acquired Corporation and BancGroup shall be liable for
damages for any wilful breach of warranty, representation, covenant or other
agreement contained in this Agreement.
 
                                   ARTICLE 14
 
                                  DEFINITIONS
 
     (a) The following terms, which are capitalized in this Agreement, shall
have the meanings set forth below for the purpose of this Agreement:
 
Acquired Corporation.......  United American Holding Corporation, a Florida
                             corporation.
 
Acquired Corporation
  Company..................  Shall mean Acquired Corporation, the Bank, any
                             Subsidiary of Acquired Corporation or the Bank, or
                             any person or entity acquired as a Subsidiary of
                             Acquired Corporation or the Bank in the future and
                             owned by Acquired Corporation or the Bank at the
                             Effective Date.
 
Acquired Corporation
  Options..................  Options respecting the issuance of a maximum of
                             190,500 shares of Acquired Corporation common stock
                             pursuant to Acquired Corporation's stock option
                             plans.
 
Acquired Corporation
  Stock....................  Shares of common stock, par value $0.01 per share,
                             of Acquired Corporation.
 
Acquisition Proposal.......  Shall mean, with respect to a Party, any tender
                             offer or exchange offer or any proposal for a
                             merger, acquisition of all of the stock or assets
                             of, or other business combination involving such
                             Party or any of its Subsidiaries or the acquisition
                             of a substantial equity interest in, or a
                             substantial portion of the assets of, such Party or
                             any of its Subsidiaries.
 
Agencies...................  Shall mean, collectively, the Federal Trade
                             Commission, the United States Department of
                             Justice, the Board of the Governors of the Federal
                             Reserve System, the Federal Deposit Insurance
                             Corporation, the Office of Thrift Supervision, all
                             state regulatory agencies having jurisdiction over
                             the Parties and their respective Subsidiaries, HUD,
                             the VA, the FHA, the GNMA, the FNMA, the FHLMC, the
                             NYSE, and the SEC.
 
Agreement..................  Shall mean this Agreement and Plan of Merger and
                             the Exhibits and Schedules delivered pursuant
                             hereto and incorporated herein by reference.
 
                                      A-29
<PAGE>   153
 
Assets.....................  Of a Person shall mean all of the assets,
                             properties, businesses and rights of such Person of
                             every kind, nature, character and description,
                             whether real, personal or mixed, tangible or
                             intangible, accrued or contingent, or otherwise
                             relating to or utilized in such Person's business,
                             directly or indirectly, in whole or in part,
                             whether or not carried on the books and records of
                             such Person, and whether or not owned in the name
                             of such Person or any Affiliate of such Person and
                             wherever located.
 
BancGroup..................  The Colonial BancGroup, Inc., a Delaware
                             corporation with its principal offices in
                             Montgomery, Alabama.
 
Bank.......................  United American Bank of Central Florida, a Florida
                             state bank.
 
Closing....................  The submission of the certificates of officers,
                             legal opinions and other actions required to be
                             taken in order to consummate the Merger in
                             accordance with this Agreement.
 
Code.......................  The Internal Revenue Code of 1986, as amended.
 
Common Stock...............  BancGroup's Common Stock authorized and defined in
                             the restated certificate of incorporation of
                             BancGroup, as amended.
 
Consent....................  Any consent, approval, authorization, clearance,
                             exemption, waiver, or similar affirmation by any
                             Person pursuant to any Contract, Law, Order, or
                             Permit.
 
Contract...................  Any written or oral agreement, arrangement,
                             authorization, commitment, contract, indenture,
                             instrument, lease, obligation, plan, practice,
                             restriction, understanding or undertaking of any
                             kind or character, or other document to which any
                             Person is a party or that is binding on any Person
                             or its capital stock, Assets or business.
 
Default....................  Shall mean (i) any breach or violation of or
                             default under any Contract, Order or Permit, (ii)
                             any occurrence of any event that with the passage
                             of time or the giving of notice or both would
                             constitute a breach or violation of or default
                             under any Contract, Order or Permit, or (iii) any
                             occurrence of any event that with or without the
                             passage of time or the giving of notice would give
                             rise to a right to terminate or revoke, change the
                             current terms of, or renegotiate, or to accelerate,
                             increase, or impose any Liability under, any
                             Contract, Order or Permit.
 
DGCL.......................  The Delaware General Corporation Law.
 
Effective Date.............  Means the date and time at which the Merger becomes
                             effective as defined in section 2.7 hereof.
 
Environmental Laws.........  Means the laws, regulations and governmental
                             requirements referred to in section 5.23 hereof.
 
ERISA......................  The Employee Retirement Income Security Act of
                             1974, as amended.
 
Exchange Ratio.............  The ratio obtained by dividing $36.50 by the Market
                             Value, as set forth in section 3.1(c).
 
Exhibits...................  A through C, inclusive, shall mean the Exhibits so
                             marked, copies of which are attached to this
                             Agreement. Such Exhibits are hereby incorporated by
                             reference herein and made a part hereof, and may be
                             referred to in this Agreement and any other related
                             instrument or document without being attached
                             hereto.
 
                                      A-30
<PAGE>   154
 
FBCA.......................  The Florida Business Corporation Act
 
GAAP.......................  Means generally accepted accounting principles
                             Applicable to banks and bank holding companies
                             consistently applied during the periods involved.
 
Knowledge..................  Means the actual knowledge of the Chairman,
                             President, Chief Financial Officer, Chief
                             Accounting Officer, Chief Credit Officer, General
                             Counsel or any Senior or Executive Vice President
                             of BancGroup, in the case of knowledge of
                             BancGroup, or of Acquired Corporation and the Bank,
                             in the case of knowledge of Acquired Corporation.
 
Law........................  Any code, law, ordinance, regulation, reporting or
                             licensing requirement, rule, or statute applicable
                             to a Person or its Assets, Liabilities or business,
                             including, without limitation, those promulgated,
                             interpreted or enforced by any Agency.
 
Liability..................  Any direct or indirect, primary or secondary,
                             liability, indebtedness, obligation, penalty, cost
                             or expense (including, without limitation, costs of
                             investigation, collection and defense), deficiency,
                             guaranty or endorsement of or by any Person (other
                             than endorsements of notes, bills, checks, and
                             drafts presented for collection or deposit in the
                             ordinary course of business) of any type, whether
                             accrued, absolute or contingent, liquidated or
                             unliquidated, matured or unmatured, or otherwise.
 
Lien.......................  Any conditional sale agreement, default of title,
                             easement, encroachment, encumbrance, hypothecation,
                             infringement, lien, mortgage, pledge, reservation,
                             restriction, security interest, title retention or
                             other security arrangement, or any adverse right or
                             interest, charge, or claim of any nature whatsoever
                             of, on, or with respect to any property or property
                             interest, other than (i) Liens for current property
                             Taxes not yet due and payable, (ii) for depository
                             institution Subsidiaries of a Party, pledges to
                             secure deposits and other Liens incurred in the
                             ordinary course of the banking business, (iii)
                             Liens in the form of easements and restrictive
                             covenants on real property which do not materially
                             adversely affect the use of such property by the
                             current owner thereof, and (iv) Liens which are not
                             reasonably likely to have, individually or in the
                             aggregate, a Material Adverse Effect on a Party.
 
Litigation.................  Any action, arbitration, complaint, criminal
                             prosecution, governmental or other examination or
                             investigation, hearing, inquiry, administrative or
                             other proceeding but shall not include regular,
                             periodic examinations of depository institutions
                             and their Affiliates by Regulatory Authorities,
                             relating to or affecting a Party, its business, its
                             Assets (including Contracts related to it), or the
                             transactions contemplated by this Agreement.
                             relating to or affecting a Party, its business, its
                             Assets (including Contracts related to it), or the
                             transactions contemplated by this Agreement.
 
Loan Property..............  Any property owned by the Party in question or by
                             any of its Subsidiaries or in which such Party or
                             Subsidiary holds a security interest, and, where
                             required by the context, includes the owner or
                             operator of such property, but only with respect to
                             such property.
 
Loss.......................  Any and all direct or indirect payments,
                             obligations, recoveries, deficiencies, fines,
                             penalties, interest, assessments, losses,
                             diminution in the value of Assets, damages,
                             punitive, exemplary or consequential damages
                             (including, but not limited to, lost income and
                             profits and interruptions of
 
                                      A-31
<PAGE>   155
 
                             business), liabilities, costs, expenses (including
                             without limitation, reasonable attorneys' fees and
                             expenses, and consultant's fees and other costs of
                             defense or investigation), and interest on any
                             amount payable to a third party as a result of the
                             foregoing.
 
Market Value...............  Shall represent the per share market value of the
                             BancGroup Common Stock at the Effective Date and
                             shall be determined by calculating the average of
                             the closing prices of the Common Stock of BancGroup
                             as reported by the NYSE on each of the ten (10)
                             consecutive trading days ending on the trading day
                             five calendar days preceding the Effective Date.
                             Regardless of such average, the Market Value shall
                             be deemed to be no less than $23.80 and no greater
                             than $32.20.
 
Material...................  For purposes of this Agreement shall be determined
                             in light of the facts and circumstances of the
                             matter in question; provided that any specific
                             monetary amount stated in this Agreement shall
                             determine materiality in that instance.
 
Material Adverse Effect....  On a Party shall mean an event, change or
                             occurrence which has a material adverse impact on
                             (i) the financial position, Assets, business, or
                             results of operations of such Party and its
                             Subsidiaries, taken as a whole, or (ii) the ability
                             of such Party to perform its obligations under this
                             Agreement or to consummate the Merger or the other
                             transactions contemplated by this Agreement,
                             provided that "material adverse effect" shall not
                             be deemed to include the impact of (w) changes in
                             banking and similar laws of general applicability
                             or interpretations thereof by courts or
                             governmental authorities, (x) changes in generally
                             accepted accounting principles or regulatory
                             accounting principles generally applicable to banks
                             and their holding companies, (y) actions and
                             omissions of a Party (or any of its Subsidiaries)
                             taken with the prior informed consent of the other
                             Party in contemplation of the transactions
                             contemplated hereby, and (z) the Merger and
                             compliance with the provisions of this Agreement on
                             the operating performance of the Parties.
 
Merger.....................  The merger of Acquired Corporation with BancGroup
                             as contemplated in this Agreement.
 
Merger Consideration.......  The distribution of BancGroup Common Stock for each
                             share of Acquired Corporation Stock (and cash for
                             fractional shares) as provided in section 3.1(a)
                             hereof.
 
NYSE.......................  The New York Stock Exchange.
 
Order......................  Any administrative decision or award, decree,
                             injunction, judgment, order, quasi-judicial
                             decision or award, ruling, or writ of any federal,
                             state, local or foreign or other court, arbitrator,
                             mediator, tribunal, administrative agency or
                             Agency.
 
Party......................  Shall mean Acquired Corporation or BancGroup, and
                             "Parties" shall mean both Acquired Corporation and
                             BancGroup.
 
Permit.....................  Any federal, state, local, and foreign governmental
                             approval, authorization, certificate, easement,
                             filing, franchise, license, notice, permit, or
                             right to which any Person is a party or that is or
                             may be binding upon or inure to the benefit of any
                             Person or its securities, Assets or business.
 
Person.....................  A natural person or any legal, commercial or
                             governmental entity, such as, but not limited to, a
                             corporation, general partnership, joint venture,
 
                                      A-32
<PAGE>   156
 
                             limited partnership, limited liability company,
                             trust, business association, group acting in
                             concert, or any person acting in a representative
                             capacity.
 
Proxy Statement............  The proxy statement used by Acquired Corporation to
                             solicit the approval of its stockholders of the
                             transactions contemplated by this Agreement, which
                             shall include the prospectus of BancGroup relating
                             to the issuance of the BancGroup Common Stock to
                             the shareholders of Acquired Corporation.
 
Registration Statement.....  The registration statement on Form S-4, or such
                             other appropriate form, to be filed with the SEC by
                             BancGroup, and which has been agreed to by Acquired
                             Corporation, to register the shares of BancGroup
                             Common Stock offered to stockholders of the Bank
                             pursuant to his Agreement, including the Proxy
                             Statement.
 
Resulting Corporation......  BancGroup, as the surviving corporation resulting
                             from the Merger.
 
SEC........................  United States Securities and Exchange Commission.
 
Shareholders Meeting.......  The special meeting of shareholders of Acquired
                             Corporation called to approve the transactions
                             contemplated by this Agreement.
 
Stock Option Agreement.....  The agreement dated as of the date hereof between
                             BancGroup and Acquired Corporation granting to
                             BancGroup the right to acquired up to 19% of
                             Acquired Corporation common stock.
 
Subsidiaries...............  Shall mean all those corporations, banks,
                             associations, or other entities of which the entity
                             in question owns or controls 5% or more of the
                             outstanding equity securities either directly or
                             through an unbroken chain of entities as to each of
                             which 5% or more of the outstanding equity
                             securities is owned directly or indirectly by its
                             parent; provided, however, there shall not be
                             included any such entity acquired through
                             foreclosure or any such entity the equity
                             securities of which are owned or controlled in a
                             fiduciary capacity.
 
Tax or Taxes...............  Means any federal, state, county, local, foreign,
                             and other taxes, assessments, charges, fares, and
                             impositions, including interest and penalties
                             thereon or with respect thereto.
 
1933 Act...................  The Securities Act of 1933, as amended.
 
1934 Act...................  The Securities Exchange Act of 1934, as amended.
 
                                   ARTICLE 15
 
                                 MISCELLANEOUS
 
     15.1 Expenses.  (a) Except as otherwise provided in this Section 15.1, each
of the Parties shall bear and pay all direct costs and expenses incurred by it
or on its behalf in connection with the transactions contemplated hereunder,
including filing, registration and application fees, printing fees, and fees and
expenses of its own financial or other consultants, investment bankers,
accountants, and counsel, except that BancGroup shall bear and pay the filing
fees payable in connection with the Registration Statement and printing costs
incurred in connection with the printing of the Registration Statement.
 
     (b) Nothing contained in this Section 15.1 shall constitute or shall be
deemed to constitute liquidated damages for the willful breach by a Party of the
terms of this Agreement or otherwise limit the rights of the nonbreaching Party.
 
                                      A-33
<PAGE>   157
 
     15.2 Benefit and Assignment.  Except as expressly contemplated hereby,
neither this Agreement nor any of the rights, interests, or obligations
hereunder shall be assigned by any Party hereto (whether by operation of Law or
otherwise) without the prior written consent of the other Party. Subject to the
preceding sentence, this Agreement will be binding upon, inure to the benefit
of, and be enforceable by, the Parties and their respective successors and
assigns.
 
     15.3 Governing Law.  Except to the extent the Laws of the State of Delaware
and the State of Florida apply to the Merger, this Agreement shall be governed
by, and construed in accordance with the Laws of the State of Alabama without
regard to any conflict of Laws.
 
     15.4 Counterparts.  This Agreement may be executed in counterparts, each of
which shall be deemed to constitute an original. Each such counterpart shall
become effective when one counterpart has been signed by each Party thereto.
 
     15.5 Headings.  The headings of the various articles and sections of this
Agreement are for convenience of reference only and shall not be deemed a part
of this Agreement or considered in construing the provisions thereof.
 
     15.6 Severability.  Any term or provision of this Agreement that is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining terms and provisions thereof or affecting the
validity or enforceability of such provision in any other jurisdiction, and if
any term or provision of this Agreement is held by any court of competent
jurisdiction to be void, voidable, invalid or unenforceable in any given
circumstance or situation, then all other terms and provisions, being severable,
shall remain in full force and effect in such circumstance or situation and the
term or provision shall remain valid and in effect in any other circumstances or
situation.
 
     15.7 Construction.  Use of the masculine pronoun herein shall be deemed to
refer to the feminine and neuter genders and the use of singular references
shall be deemed to include the plural and vice versa, as appropriate. No
inference in favor of or against any Party shall be drawn from the fact that
such Party or such Party's counsel has drafted any portion of this Agreement.
 
     15.8 Return of Information.  In the event of termination of this Agreement
prior to the Effective Date, each Party shall return to the other, without
retaining copies thereof, all confidential or non-public documents, work papers
and other materials obtained from the other Party in connection with the
transactions contemplated in this Agreement and shall keep such information
confidential, not disclose such information to any other person or entity, and
not use such information in connection with its business.
 
     15.9 Equitable Remedies.  The parties hereto agree that, in the event of a
breach of this Agreement by either Party, the other Party may be without an
adequate remedy at law owing to the unique nature of the contemplated
transactions. In recognition thereof, in addition to (and not in lieu of) any
remedies at law that may be available to the non-breaching Party, the
non-breaching Party shall be entitled to obtain equitable relief, including the
remedies of specific performance and injunction, in the event of a breach of
this Agreement by the other Party, and no attempt on the part of the
non-breaching Party to obtain such equitable relief shall be deemed to
constitute an election of remedies by the non-breaching Party that would
preclude the non-breaching Party from obtaining any remedies at law to which it
would otherwise be entitled.
 
     15.10 Attorneys' Fees.  If any Party hereto shall bring an action at law or
in equity to enforce its rights under this Agreement (including an action based
upon a misrepresentation or the breach of any warranty, covenant, agreement or
obligation contained herein), the prevailing Party in such action shall be
entitled to recover from the other Party its costs and expenses incurred in
connection with such action (including fees, disbursements and expenses of
attorneys and costs of investigation).
 
     15.11 No Waiver.  No failure, delay or omission of or by any Party in
exercising any right, power or remedy upon any breach or Default of any other
Party shall impair any such rights, powers or remedies of the Party not in
breach or Default, nor shall it be construed to be a wavier of any such right,
power or remedy, or an acquiescence in any similar breach or Default; nor shall
any waiver of any single breach or Default be deemed a waiver of any other
breach or default theretofore or thereafter occurring. Any waiver, permit,
 
                                      A-34
<PAGE>   158
 


consent or approval of any kind or character on the part of any Party of any
provisions of this Agreement must be in writing and be executed by the Parties
to this Agreement and shall be effective only to the extent specifically set
forth in such writing.
 
     15.12 Remedies Cumulative.  All remedies provided in this Agreement, by law
or otherwise, shall be cumulative and not alternative.
 
     15.13 Entire Contract.  This Agreement and the documents and instruments
referred to herein constitute the entire contract between the parties to this
Agreement and supersede all other understandings with respect to the subject
matter of this Agreement.
 
     IN WITNESS WHEREOF, Acquired Corporation and BancGroup have caused this
Agreement to be signed by their respective duly authorized officers as of the
date first above written.
 
<TABLE>
<S>                                                         <C>
ATTEST:                                                     UNITED AMERICAN HOLDING CORPORATION
 
BY:   /s/ Charles Hall                                      BY:   /s/ James L. Hewitt
       ----------------------------------------------          -------------------------------------------
       Charles Hall                                                James L. Hewitt
 
ITS:  Vice President & CFO                                  ITS:  Chairman, President and CEO
      ----------------------------------------------             -----------------------------------------
 
(CORPORATE SEAL)
 
ATTEST:                                                     THE COLONIAL BANCGROUP, INC.
 
BY:   /s/ Donna R. Piel                                     BY:   /s/ W. Flake Oakley, IV
     ------------------------------------------------          -------------------------------------------
       Donna Piel                                                  W. Flake Oakley, IV
 
ITS:  Assistant Secretary                                   ITS:  Chief Financial Officer
      -----------------------------------------------           ------------------------------------------
 
(CORPORATE SEAL)
</TABLE>
 
                                      A-35
<PAGE>   159
 
                                                                      APPENDIX B
 
     607.1301 DISSENTER'S RIGHTS; DEFINITIONS. -- The following definitions
apply to sec.sec. 607.1302 and 607.1302 and 607.1320:
 
          (1) "Corporation" means the issuer of the shares held by a dissenting
     shareholder before the corporate action or the surviving or acquiring
     corporation by merger or share exchange of that issuer.
 
          (2) "Fair Value," with respect to a dissenter's shares, means the
     value of the shares as of the close of business on the day prior to the
     shareholders' authorized date, excluding any appreciation or depreciation
     in anticipation of the corporate action unless exclusion would be
     inequitable.
 
          (3) "Shareholders' authorization date" means the date on which the
     shareholders' vote authorizing the proposed action was taken, the date on
     which the corporation received written consents without a meeting from the
     requisite number of shareholders in order to authorize the action, or, in
     the case of a merger pursuant to sec. 607.1104, the day prior to the date
     on which a copy of the plan of merger was mailed to each shareholder or
     record of the subsidiary corporation.
 
     607.1302 RIGHT OF SHAREHOLDERS TO DISSENT. -- (1) Any shareholder has the
right to dissent from, and obtain payment of the fair value of his shares in the
event of, any of the following corporate actions:
 
          (a) Consummation of a plan of merger to which the corporation is a
     party:
 
             1. If the shareholder is entitled to vote on the merger, or
 
             2. If the corporation is a subsidiary that is merged with its
        parent under sec. 607.1104, and the shareholders would have been
        entitled to vote on action taken, except for the applicability of
        607.1104;
 
          (b) Consummation of a sale or exchange of all, or substantially all,
     of the property of the corporation, other than in the usual and regular
     course of business, if the shareholder is entitled to vote on the sale or
     exchange pursuant to sec. 607.1202, including a sale in dissolution but not
     including a sale pursuant to court order or a sale of cash pursuant to a
     plan by which all or substantially all of the net proceeds of the sale will
     be distributed to the shareholders within 1 year after the date of sale;
 
          (c) As provided in sec. 607.0902(11), the approval of a control-share
     acquisition;
 
          (d) Consummation of a plan of share exchange to which the corporation
     is a party as the corporation the shares of which will be acquired, if the
     shareholder is entitled to vote on the plan;
 
          (e) Any amendment of the articles of incorporation if the shareholder
     is entitled to vote on the amendment and if such amendment would adversely
     affect such shareholder by:
 
             1. Altering or abolishing any preemptive rights attached to any of
        his shares;
 
             2. Altering or abolishing the voting rights pertaining to any of
        his shares, except as such rights may be affected by the voting rights
        of new shares then being authorized of any existing or new class or
        series of shares;
 
             3. Effecting an exchange, cancellation, or reclassification of any
        of his shares, when such exchange, cancellation, or reclassification
        would alter or abolish his voting rights or alter his percentage or
        equity in the corporation, or effecting a reduction or cancellation of
        accrued dividends or other arrearages in respect to such shares;
 
             4. Reducing the stated reduction price of any of his redeemable
        shares, altering or abolishing any provision relating to any sinking
        fund for the redemption or purchase of any of his shares, or making any
        of his shares subject to redemption when they are not otherwise
        redeemable;
 
             5. Making noncumulative, in whole or in part, dividends of any of
        his preferred shares which had theretofore been cumulative;
 
                                       B-1
<PAGE>   160
 
             6. Reducing the stated dividend preference to any of his preferred
        shares; or
 
             7. Reducing any stated preferential amount payable on any of his
        preferred shares upon voluntary or involuntary liquidation; or
 
          (f) Any corporate action taken, to the extent the articles of
     incorporation provide that a voting or nonvoting shareholder is entitled to
     dissent and obtain payment for his shares.
 
             (2) A shareholder dissenting from any amendment specified in
        paragraph (1)(e) has the right to dissent only as to those of his shares
        which are adversely affected by the amendment.
 
             (3) A Shareholder may dissent as to less than all the shares
        registered in his name. In that event, his rights shall be determined as
        if the shares as to which he has dissented and his other shares were
        registered in the names of different shareholders.
 
             (4) Unless the articles of incorporation otherwise provide, this
        section does not apply with respect to a plan of merger or share
        exchange or a proposed sale or exchange of property, to the holders of
        shares of any class or series which, on the record date fixed to
        determine the shareholders entitled to vote at the meeting of
        shareholders at which such action is to be acted upon or to consent to
        any such action without a meeting, were either registered on a national
        securities exchange or designated as a national market system security
        on a interdealer quotation system by the National Association of
        Securities Dealers, Inc., or held of record by not fewer than 2,000
        shareholders.
 
             (5) A shareholder entitled to dissent and obtain payment for his
        shares under this section may not challenge the corporate action
        creating his entitlement unless the action is unlawful or fraudulent
        with respect to the shareholder or the corporation.
 
     607.1320 PROCEDURE FOR EXERCISE OF DISSENTERS' RIGHTS. -- (1)(a) If a
proposed corporate section creating dissenters' rights under sec. 607.1320 is
submitted to a vote at a shareholders' meeting, the meeting notice shall state
that shareholders are or may be entitled to assert dissenters' rights and be
accompanied by a copy of sec.sec. 607.1301, 607.1302, and 607.1320. A
shareholder who wishes to assert dissenter's rights shall:
 
          1. Deliver to the corporation before the vote is taken written notice
     of his intent to demand payment for his shares if the proposed action is
     effectuated, and
 
          2. Not vote his shares in favor of the proposed action. A proxy or
     vote against the proposed action does not constitute such a notice of
     intent to demand payment.
 
     (b) If proposed corporate action creating dissenters' rights under sec.
607.1302 is effectuated by written consent without a meeting, the corporation
shall deliver a copy of sec.sec. 607.1301, 607.1302, and 607.1320 to each
shareholder simultaneously with any request for his written consent or, if such
a request is not made, within 10 days after the date the corporation received
written consents without a meeting from the requisite number of shareholders
necessary to authorize the action.
 
     (2) Within 10 days after the shareholders' authorization date, the
corporation shall give written notice of such authorization or consent or
adoption of the plan of merger, as the case may be, to each shareholder who
filed a notice of intent to demand payment for his shares pursuant to paragraph
(1)(a) or, in the case of action authorized by written consent, to each
shareholder, excepting any who voted for, or consented in writing to, the
proposed action.
 
     (3) Within 20 days after the giving of notice to him, any shareholder who
elects to dissent shall file with the corporation a notice of such election,
stating his name and address, the number, classes, and series of shares. Any
shareholder failing to file such election to dissent within the period set forth
shall be bound by the terms of the proposed corporate action. Any shareholder
filing an election to dissent shall deposit his certificates for certificated
shares with the corporation simultaneously with the filing of the election to
dissent. The corporation may restrict the transfer of uncertificated shares from
the date the shareholder's election to dissent is filed with the corporation.
 
                                       B-2
<PAGE>   161
 
          (4) Upon filing a notice of election to dissent, the shareholder shall
     thereafter be entitled only to payment as provided in this section and
     shall not be entitled to vote or to exercise any other rights of a
     shareholder. A notice of election may be withdrawn in writing by the
     shareholder at any time before an offer is made by the corporation, as
     provided in subsection (5), to pay for his shares. After such offer, no
     such notice of election may be withdrawn unless the corporation consents
     thereto. However, the right of such shareholder to be paid the fair value
     of his shares shall cease, and he shall be reinstated to have all right of
     such shareholder to be paid the fair value of his shares shall cease, and
     he shall be reinstated to have all his rights as a shareholder as of the
     filing of his notice of election, including any intervening preemptive
     rights and the right to payment of any intervening dividend or other
     distribution or, if any such rights have expired or any such dividend or
     distribution other than in cash has been completed, in lieu thereof, at the
     election of the corporation, the fair value thereof in cash as determined
     by the board as of the time of such expiration or completion, but without
     prejudice otherwise to any corporate proceeding that may have been taken in
     the interim, if:
 
             (a) Such demand is withdrawn as provided in this section;
 
             (b) The proposed corporate action is abandoned or rescinded or the
        shareholders revoke the authority to effect such action;
 
             (c) No demand or petition for the determination of fair value by a
        court has been made or filed within the time provided in this section;
        or
 
             (d) A court of competent jurisdiction determines that such
        shareholder is not entitled to the relief provided by this section.
 
          (5) Within 10 days after the expiration of the period in which
     shareholders may file their notices of election to dissent, or within 10
     days after such corporate action is effected, whichever is later (but in no
     case later than 90 days from the shareholders' authorization date), the
     corporation shall make a written offer to each dissenting shareholder who
     has made demand as provided in this section to pay an amount the
     corporation estimates to be the fair value for such shares. If the
     corporate action has not been consummated before the expiration of the
     90-day period after the shareholders' authorization date, the offer may be
     made conditional upon the consummation of such action. Such notice and
     offer shall be accompanied by:
 
             (a) A balance sheet of the corporation, the shares of which the
        dissenting shareholder holds, as of the latest available date and not
        more than 12 months prior to the making of such offer; and
 
             (b) A profit and loss statement of such corporation for the
        12-month period ended on the date of such balance sheet or, if the
        corporation was not in existence throughout such 12-month period, for
        the portion thereof during which it was in existence.
 
          (6) If within 30 days after the making of such offer any shareholder
     accepts the same, payment for his shares shall be made within 90 days after
     the making of such offer or the consummation of the proposed action,
     whichever is later. Upon payment of the agreed value, the dissenting
     shareholder shall cease to have any interest in such shares.
 
          (7) If the corporation fails to make such offer within the period
     specific therefor in subsection (5) or if it makes the offer and any
     dissenting shareholder or shareholders fail to accept the same within the
     period of 30 days thereafter, then the corporation, within 30 days after
     receipt of written demand from any dissenting shareholder given within 60
     days after the date on which such corporate action was effected, shall, or
     at its election at any time within such period of 60 days may, file an
     action in any court of competent jurisdiction in the county in this state
     where the registered office of the corporation is located requesting that
     the fair value of such shares be determined. The court shall also determine
     whether each dissenting shareholder, as to whom the corporation requests
     the court to make such determination, is entitled to receive payment for
     his shares. If the corporation fails to institute the proceeding as herein
     provided, any dissenting shareholders (whether or not residents of this
     state), other than shareholders who have agreed with the corporation as to
     the value of their shares, shall be made
 
                                       B-3
<PAGE>   162
 
     parties to the proceeding as an action against their shares. The
     corporation shall serve a copy of the initial pleading in such proceeding
     upon each dissenting shareholder who is a resident of this state in the
     manner provided by law for the service of a summons and complaint and upon
     each nonresident dissenting shareholder either by registered or certified
     mail and publication or in such other manner as is permitted by law. The
     jurisdiction of the court is plenary and exclusive. All shareholders who
     are proper parties to the proceeding are entitled to judgment against the
     corporation for the amount of the fair value of their shares. The court
     may, if it so elects, appoint one or more persons as appraisers to receive
     evidence and recommend a decision on the question of fair value. The
     appraisers shall have such power and authority as is specified in the order
     of their appointment or an amendment thereof. The corporation shall pay
     each dissenting shareholder the amount found to be due him within 10 days
     after final determination of the proceedings. Upon payment of the judgment,
     the dissenting shareholder shall cease to have any interest in such shares.
 
          (8) The judgment may, at the discretion of the court, include a fair
     rate of interest, to be determined by the court.
 
          (9) The costs and expenses of any such proceeding shall be determined
     by the court and shall be assessed against the corporation, but all or any
     part of such costs and expenses may be apportioned and assessed as the
     court deems equitable against any or all of the dissenting shareholders who
     are parties to the proceeding, to whom the corporation has made an offer to
     pay for the shares, if the court finds that action of such shareholders in
     failing to accept such offer was arbitrary, vexatious, or not in good
     faith. Such expenses shall include reasonable compensation for, and
     reasonable expenses of, the appraisers, but shall exclude the fees and
     expenses of counsel for, and experts employed by, any party. If the fair
     value of the shares, as determined, materially exceeds the amount which the
     corporation offered to pay therefor or if no offer was made, the court in
     its discretion may award to any shareholder who is a party to the
     proceeding such sum as the court determines to be reasonable compensation
     to any attorney or expert employed by the shareholder in the proceeding.
 
          (10) Shares acquired by a corporation pursuant to payment of the
     agreed value thereof or pursuant to payment of the judgment entered
     therefor, as provided in this action, may be held and disposed of by such
     corporation as authorized but unissued shares of the corporation, except
     that, in the case of a merger, they may be held and disposed of as the plan
     of merger otherwise provides. The shares of the surviving corporation into
     which the shares of such dissenting shareholders would have been converted
     had they assented to the merger shall have the status of authorized but
     unissued shares of the surviving corporation.
 
                                       B-4
<PAGE>   163
 
                                                                      APPENDIX C
 
                             STOCK OPTION AGREEMENT
 
     STOCK OPTION AGREEMENT, dated as of September 8, 1997 (the "Agreement"), by
and between United American Holding Corporation, a Florida corporation
("Issuer"), and The Colonial BancGroup, Inc., a Delaware corporation
("Grantee").
 
     WHEREAS, Grantee and Issuer have entered into an Agreement and Plan of
Merger dated as of September 8, 1997 (the "Merger Agreement"), providing for,
among other things, the merger of Issuer with and into Grantee, with Grantee as
the surviving corporation; and
 
     WHEREAS, as a condition and inducement to Grantee's execution of the Merger
Agreement, Grantee has required that Issuer agree, and Issuer has agreed, to
grant Grantee the Option (as defined below);
 
     NOW THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants, and agreements set forth herein and in
the Merger Agreement, and intending to be legally bound hereby, Issuer and
Grantee agree as follows:
 
          1. Defined Terms.  Capitalized terms which are used but not defined
     herein shall have the meanings ascribed to such terms in the Merger
     Agreement.
 
          2. Grant of Option.  Subject to the terms and conditions set forth
     herein, Issuer hereby grants to Grantee an irrevocable option (the
     "Option") to purchase from time to time up to 338,124 shares (as adjusted
     as set forth herein) (the "Option Shares"), of Common Stock, par value $.01
     per share ("Issuer Common Stock"), of Issuer at a purchase price per Option
     Share (the "Purchase Price") equal to $36.50; provided, however, that in no
     event shall the number of shares for which this option is exercisable
     exceed 19% of the outstanding shares of Issuer Common Stock.
 
        3. Exercise of Option
 
             (a) Provided that (i) Grantee shall not be in material breach of
        the agreements or covenants contained in this Agreement or the Merger
        Agreement, and (ii) no preliminary or permanent injunction or other
        order against the delivery of shares covered by the Option issued by any
        court of competent jurisdiction in the United States shall be in effect,
        Grantee may exercise the Option, in whole or in part, at any time and
        from time to time following the occurrence of a Purchase Event (as
        defined below); provided that the Option shall terminate and be of no
        further force or effect upon the earliest to occur of (A) the Effective
        Date, or (B) termination of the Merger Agreement in accordance with the
        terms thereof prior to the occurrence of a Purchase Event or a
        Preliminary Purchase Event, (C) termination of the Merger Agreement in
        accordance with the terms thereof after the occurrence of a Purchase
        Event or a Preliminary Purchase Event (other than a termination of the
        Merger Agreement by Grantee due to a material breach by Issuer in
        accordance with Section 13.2(b) of the Merger Agreement or a termination
        due to the failure to fulfill conditions set forth in Sections 8.1,
        10.1, 10.3, 10.4, 10.6, 10.7, 10.9 or 10.10 of the Merger Agreement), or
        (D) eighteen months after termination of the Merger Agreement following
        the occurrence of a Purchase Event or a Preliminary Purchase Event,
        provided that the termination of the Merger Agreement was due to one of
        the reasons listed in the parenthetical of Clause (C) above; and
        provided further, that any purchase of shares upon exercise of the
        Option shall be subject to compliance with applicable law including,
        without limitation, the Bank Holding Company Act of 1956, as amended
        (the "BHC Act"). The rights set forth in Section 8 shall terminate when
        the right to exercise the Option terminates (other than as a result of a
        complete exercise of the Option) as set forth herein.
 
             (b) As used herein, a "Purchase Event" means any of the following
        events:
 
                (i) Without Grantee's prior written consent, Issuer shall have
           authorized, recommended, publicly proposed, or publicly announced an
           intention to authorize, recommend, or propose, or
 
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<PAGE>   164
 
           shall have entered into any agreement with any person (other than
           Grantee or any subsidiary of Grantee) to effect an Acquisition
           Transaction (as defined below). As used herein, the term Acquisition
           Transaction shall mean (A) a merger, consolidation, or other business
           combination involving Issuer, (B) the disposition, by sale, lease,
           exchange, or otherwise, of assets of Issuer or any of its
           subsidiaries representing in either case all or substantially all of
           the consolidated assets of Issuer, or (C) the issuance, sale, or
           other disposition of (including by way of merger, consolidation,
           share exchange, or any similar transaction) securities representing
           25% or more of the voting power of Issuer; or
 
                (ii) After the date of this Agreement, any person (other than
           Grantee or any subsidiary of Grantee) shall have acquired beneficial
           ownership (as such term is defined in Rule 13d-3 promulgated under
           the Securities Exchange Act of 1934 (the "1934 Act")) of or the right
           to acquire beneficial ownership of, or any "group" (as such term is
           defined under the 1934 Act) shall have been formed which beneficially
           owns or has the right to acquire beneficial ownership of, 25% or more
           of the then outstanding shares of Issuer Common Stock.
 
             (c) As used herein, a "Preliminary Purchase Event" means any of the
        following events:
 
                (i) any person (other than Grantee or any subsidiary of Grantee)
           shall have commenced (as such term is defined in Rule 14d-2 under the
           1934 Act), or shall have filed a registration statement under the
           1933 Act with respect to, a tender offer or exchange offer to
           purchase any shares of Issuer Common Stock such that, upon
           consummation of such offer, such person would own or control 25% or
           more of the then outstanding shares of Issuer Common Stock (such an
           offer being referred to herein as a "Tender Offer" or an "Exchange
           Offer," respectively); or
 
                (ii) (1) the holders of Issuer Common Stock shall not have
           approved the Merger Agreement at the meeting of such stockholders
           held for the purpose of voting on the Merger Agreement, (2) such
           meeting shall not have been held or shall have been canceled prior to
           termination of the Merger Agreement, (3) the Issuer's Board of
           Directors or any person representing such Board shall have commenced
           negotiations with any person other than Grantee regarding an
           Acquisition Transaction, or (4) Issuer's Board of Directors shall
           have withdrawn or modified in a manner adverse to Grantee the
           recommendation of Issuer's Board of Directors with respect to the
           Merger Agreement, in each case after it shall have been publicly
           announced (or otherwise disclosed to the Issuer prior to such public
           announcement) that any person (other than Grantee or any subsidiary
           of Grantee) shall have (A) made, or disclosed to Issuer an intention
           to make, a proposal to engage in an Acquisition Transaction, (B)
           commenced a Tender Offer or filed a registration statement under the
           1933 Act with respect to an Exchange Offer, or (C) filed an
           application (or given a notice), whether in draft or final form,
           under the BHC Act, the Bank Merger Act, or the Change in Bank Control
           Act of 1978, or other appropriate banking agency, for approval to
           engage in an Acquisition Transaction.
 
As used in this Agreement, "person" shall have the meaning specified in Sections
3(a)(9) and 13(d)(3) of the 1934 Act.
 
             (d) In the event Grantee wishes to exercise the Option, it shall
        send to Issuer a written notice (the date of which being herein referred
        to as the "Notice Date") specifying (i) the total number of Option
        Shares it intends to purchase pursuant to such exercise and (ii) a place
        and date not earlier than three business days nor later than 15 business
        days from the Notice Date for the closing (the "Closing") of such
        purchase (the "Closing Date"). If prior notification to or approval of
        the Board of Governors of the Federal Reserve System (the "Federal
        Reserve Board") or any other regulatory authority is required in
        connection with such purchase, Issuer shall cooperate with Grantee in
        the filing of the required notice or application for approval and the
        obtaining of such approval and the Closing shall occur immediately
        following such regulatory approvals (and any mandatory waiting periods).
 
                                       C-2
<PAGE>   165
 
          4. Payment and Delivery of Certificates
 
             (a) On each Closing Date, Grantee shall (i) pay to Issuer, in
        immediately available funds by wire transfer to a bank account
        designated by Issuer, an amount equal to the Purchase Price multiplied
        by the number of Option Shares to be purchased on such Closing Date, and
        (ii) present and surrender this Agreement to the Issuer at the address
        of the Issuer specified in Section 11(f) hereof.
 
             (b) At each Closing, simultaneously with the delivery of
        immediately available funds and surrender of this Agreement as provided
        in Section 4(a), (i) Issuer shall deliver to Grantee (A) a certificate
        or certificates representing the Option Shares to be purchased at such
        Closing, which Option Shares shall be free and clear of all liens,
        claims, charges, and encumbrances of any kind whatsoever and subject to
        no pre-emptive rights, and (B) if the Option is exercised in part only,
        an executed new agreement with the same terms as this Agreement
        evidencing the right to purchase the balance of the shares of Issuer
        Common Stock purchasable hereunder, and (ii) Grantee shall deliver to
        Issuer a letter agreeing that Grantee shall not offer to sell or
        otherwise dispose of such Option Shares in violation of applicable
        federal and state law or of the provisions of this Agreement.
 
             (c) In addition to any other legend that is required by applicable
        law, certificates for the Option Shares delivered at each Closing shall
        be endorsed with a restrictive legend which shall read substantially as
        follows:
 
               THE STOCK REPRESENTED BY THIS CERTIFICATE HAS NOT BEEN REGISTERED
               UNDER THE SECURITIES ACT OF 1933 OR ANY STATE LAW AND THE
               TRANSFER OF THE STOCK REPRESENTED BY THIS CERTIFICATE IS SUBJECT
               TO RESTRICTIONS ARISING UNDER THE SECURITIES ACT OF 1933, AS
               AMENDED, AND PURSUANT TO THE TERMS OF A STOCK OPTION AGREEMENT
               DATED AS OF SEPTEMBER 8, 1997. A COPY OF SUCH AGREEMENT WILL BE
               PROVIDED TO THE HOLDER HEREOF WITHOUT CHARGE UPON RECEIPT BY THE
               ISSUER OF A WRITTEN REQUEST THEREFOR.
 
It is understood and agreed that: (i) the reference to restrictions arising
under the 1933 Act in the above legend shall be removed by delivery of
substitute certificate(s) without such reference if Grantee shall have delivered
to Issuer a copy of a letter from the staff of the United States Securities and
Exchange Commission ("SEC"), or an opinion of counsel in form and substance
reasonably satisfactory to Issuer and its counsel, to the effect that such
legend is not required for purposes of the 1933 Act; and (ii) the reference to
restrictions pursuant to this Agreement in the above legend shall be removed by
delivery of a substitute certificate without such reference if the Option Shares
evidenced by such certificate containing such reference have been sold or
transferred in compliance with the provisions of this Agreement under
circumstances that do not require the retention of such reference.
 
          5. Representations and Warranties of Issuer.  Issuer hereby represents
     and warrants to Grantee as follows:
 
             (a) Issuer has all requisite corporate power and authority to enter
        into this Agreement and, subject to any approvals referred to herein, to
        consummate the transactions contemplated hereby. The execution and
        delivery of this Agreement and the consummation of the transactions
        contemplated hereby have been duly authorized by all necessary corporate
        action on the part of Issuer. This Agreement has been duly executed and
        delivered by Issuer.
 
             (b) Issuer has taken all necessary corporate and other action to
        authorize and reserve and to permit it to issue (and at all times from
        the date hereof until the obligation to deliver Issuer Common Stock upon
        the exercise of the Option terminates, will have reserved for issuance),
        upon exercise of the Option, the number of shares of Issuer Common Stock
        necessary for Grantee to exercise the Option, and Issuer will take all
        necessary corporate action to authorize and reserve for issuance all
        additional shares of Issuer Common Stock or other securities which may
        be issued pursuant to Section 7 upon exercise of the Option. The shares
        of Issuer Common Stock to be issued
 
                                       C-3
<PAGE>   166
 
        upon due exercise of the Option, including all additional shares of
        Issuer Common Stock or other securities which may be issuable pursuant
        to Section 7, upon issuance pursuant hereto, shall be duly and validly
        issued, fully paid and nonassessable, and shall be delivered free and
        clear of all liens, claims, charges, and encumbrances of any kind or
        nature whatsoever, including any statutory preemptive rights of any
        stockholder of Issuer.
 
          6. Representations and Warranties of Grantee.  Grantee hereby
     represents and warrants to Issuer that:
 
             (a) Grantee has all requisite corporate power and authority to
        enter into this Agreement and, subject to any approvals or consents
        referred to herein, to consummate the transactions contemplated hereby.
        The execution and delivery of this Agreement and the consummation of the
        transactions contemplated hereby have been duly authorized by all
        necessary corporate action on the part of Grantee. This Agreement has
        been duly executed and delivered by Grantee.
 
             (b) This Option is not being, and any Option Shares or other
        securities acquired by Grantee upon exercise of the Option will not be,
        acquired with a view to the public distribution thereof and will not be
        transferred or otherwise disposed of except in a transaction registered
        or exempt from registration under the 1933 Act.
 
        7. Adjustment upon Changes in Capitalization, etc.
 
             (a) In the event of a change in Issuer Common Stock by reason of a
        stock dividend, stock split, split-up, recapitalization, combination,
        exchange of shares, or similar transaction, the type and number of
        shares or securities subject to the Option, and the Purchase Price
        therefor, shall be adjusted appropriately, subject to the limitation set
        forth in Section 2 hereof, and proper provision shall be made in the
        agreements governing such transaction so that Grantee shall receive,
        upon exercise of the Option, the number and class of shares or other
        securities or property that Grantee would have received in respect of
        Issuer Common stock if the Option had been exercised immediately prior
        to such event, or the record date therefor, as applicable. If any
        additional shares of Issuer Common Stock are issued after the date of
        this Agreement (other than pursuant to an event described in the first
        sentence of this Section 7(a) or a sale of the Issuer Common Stock for
        cash at its fair market value or pursuant to the exercise of stock
        options outstanding as of the date of this Agreement), the number of
        shares of Issuer Common Stock subject to the Option shall be adjusted so
        that, after such issuance, the shares of Issuer Common Stock subject to
        the Option, together with any shares of Issuer Common Stock previously
        issued pursuant hereto, equal 19% of the number of shares of Issuer
        Common Stock then issued and outstanding.
 
             (b) In the event that Issuer shall enter into an agreement: (i) to
        consolidate with or merge into any person, other than Grantee or one of
        its subsidiaries, and shall not be the continuing or surviving
        corporation of such consolidation or merger; (ii) to permit any person,
        other than Grantee or one of its subsidiaries, to merge into Issuer and
        Issuer shall be the continuing or surviving corporation, but, in
        connection with such merger, the then-outstanding shares of Issuer
        Common Stock shall be changed into or exchanged for stock or other
        securities of the Issuer or any other person or cash or any other
        property or the outstanding shares of Issuer Common Stock immediately
        prior to such merger shall after such merger represent less than 50% of
        the outstanding shares and share equivalents of the merged company; or
        (iii) to sell or otherwise transfer all or substantially all of its
        assets to any person, other than Grantee or one of its subsidiaries,
        then, and in each such case, the agreement governing such transaction
        shall make proper provisions so that the Option shall, upon the
        consummation of any such transaction and upon the terms and conditions
        set forth herein, be converted into, or exchanged for, an option (the
        "Substitute Option"), at the election of Grantee, of either (x) the
        Acquiring Corporation (as defined below), (y) any person that controls
        the Acquiring Corporation, or (z) in the case of a merger described in
        clause (ii), the Issuer (in each case, such person being referred to as
        the "Substitute Option Issuer").
 
                                       C-4
<PAGE>   167
 
             (c) The Substitute Option shall have the same terms as the Option,
        provided that, if the terms of the Substitute Option cannot, for legal
        reasons, be the same as the Option, such terms shall be as similar as
        possible and in no event less advantageous to Grantee. The Substitute
        Option Issuer shall also enter into an agreement with the then-holder or
        holders of the Substitute Option in substantially the same form as this
        Agreement, which shall be applicable to the Substitute Option.
 
             (d) The Substitute Option shall be exercisable for such number of
        shares of the Substitute Common Stock (as hereinafter defined) as is
        equal to the Assigned Value (as hereinafter defined) multiplied by the
        number of shares of the Issuer Common Stock for which the Option was
        theretofore exercisable, divided by the Average Price (as hereinafter
        defined). The exercise price of the Substitute Option per share of the
        Substitute Common Stock (the "Substitute Purchase Price") shall then be
        equal to the Purchase Price multiplied by a fraction in which the
        numerator is the number of shares of the Issuer Common Stock for which
        the Option was theretofore exercisable and the denominator is the number
        of shares for which the Substitute Option is exercisable.
 
             (e) The following terms have the meanings indicated:
 
                (i) "Acquiring Corporation" shall mean (x) the continuing or
           surviving corporation of a consolidation or merger with the Issuer
           (if other than the Issuer), (y) the Issuer in a merger in which the
           Issuer is the continuing or surviving person, and (z) the transferee
           of all or substantially all of the Issuer's assets.
 
                (ii) "Substitute Common Stock" shall mean the common stock
           issued by the Substitute Option Issuer upon exercise of the
           Substitute Option.
 
                (iii) "Assigned Value" shall mean the highest of (x) the price
           per share of the Issuer Common Stock at which a Tender Offer or
           Exchange Offer therefor has been made by any person after the date
           hereof (other than Grantee), (y) the price per share of the Issuer
           Common Stock to be paid by any person (other than the Grantee)
           pursuant to an agreement with the Issuer, or (z) the highest closing
           sales price per share of Issuer Common Stock quoted on the National
           Association of Securities Dealers Automated Quotation National Market
           System ("NASDAQ/NMS") (or if Issuer Common Stock is not quoted on the
           NASDAQ/ NMS, the highest bid price per share on any day as quoted on
           the principal trading market or securities exchange on which such
           shares are traded as reported by a recognized source chosen by
           Grantee or, if there is no such information available, the value of
           such shares as determined by a nationally recognized investment
           banking firm selected by Grantee) within the six-month period
           immediately preceding the Agreement; provided, however, that in the
           event of a sale of all or substantially all of the Issuers' assets,
           the Assigned Value shall be the sum of the price paid in such sale
           for such assets and the current market value of the remaining assets
           of the Issuer as determined by a nationally recognized investment
           banking firm selected by Grantee (or by a majority in interest of the
           Grantees if there shall be more than one Grantee (a "Grantee
           Majority")), divided by the number of shares of the Issuer Common
           Stock outstanding at the time of such sale.
 
                (iv) "Average Price" shall mean the average closing price of a
           share of the Substitute Common Stock for the one year immediately
           preceding the consolidation, merger or sale in question, but in no
           event higher than the closing price of the shares of the Substitute
           Common Stock on the day preceding such consolidation, merger, or
           sale, provided that if Issuer is the issuer of the Substitute Option,
           the Average Price shall be computed with respect to a share of common
           stock issued by the Issuer, the person merging into the Issuer or by
           any company which controls or is controlled by such merger person, as
           Grantee may elect, and provided further that if there is no such
           trading information available, the price of such shares shall be
           determined by a nationally recognized investment banking firm
           selected by Grantee.
 
             (f) In no event pursuant to any of the foregoing paragraphs shall
        the Substitute Option be exercisable for more than 19% of the aggregate
        of the shares of the Substitute Common Stock
 
                                       C-5
<PAGE>   168
 
        outstanding prior to exercise of the Substitute Option. In the event
        that the Substitute Option would be exercisable for more than 19% of the
        aggregate of the shares of Substitute Common Stock but for this clause
        (f), the Substitute Option Issuer shall make a cash payment to Grantee
        equal to the excess of (i) the value of the Substitute Option without
        giving effect to the limitation in this clause (f) over (ii) the value
        of the Substitute Option after giving effect to the limitation in this
        clause (f). This difference in value shall be determined by a nationally
        recognized investment banking firm selected by Grantee (or a Grantee
        Majority).
 
             (g) Issuer shall not enter into any transaction described in
        subsection (b) of this Section 7 unless the Acquiring Corporation and
        any person that controls the Acquiring Corporation assumes in writing
        all the obligations of Issuer hereunder and takes all other actions that
        may be necessary so that the provisions of this Section 7 are given full
        force and effect (including, without limitation, any action that may be
        necessary so that the shares of Substitute Common Stock are in no way
        distinguishable from or have lesser economic value than other shares of
        common stock issued by the Substitute Option Issuer) (other than any
        diminution in value resulting from the fact that the shares of
        Substitute Common Stock are restricted securities as defined in Rule 144
        under the 1933 Act or any successor provision).
 
             (h) The provisions of Sections 8, 9, and 10 shall apply, with
        appropriate adjustments, to any securities for which the Option becomes
        exercisable pursuant to this Section 7 and, as applicable, references in
        such sections to "Issuer," "Option," "Purchase Price," and "Issuer
        Common Stock" shall be deemed to be references to "Substitute Option
        Issuer," "Substitute Option," "Substitute Purchase Price," and
        "Substitute Common Stock," respectively.
 
          8. Repurchase at the Option of Grantee
 
             (a) Subject to the last sentence of Section 3(a), at the request of
        Grantee at any time commencing upon the first occurrence of a Repurchase
        Event (as defined in Section 8(d)) and ending 30 days immediately
        thereafter, Issuer shall, to the extent permitted by applicable law,
        repurchase from Grantee the Option and all shares of Issuer Common Stock
        purchased by Grantee pursuant hereto with respect to which Grantee then
        has beneficial ownership. The date on which Grantee exercises its right
        under this Section 8 is referred to as the "Request Date". Such
        repurchase shall be at an aggregate price (the "Section 8 Repurchase
        Consideration") equal to the sum of:
 
                (i) the aggregate Purchase Price paid by Grantee for any shares
           of Issuer Common Stock acquired pursuant to the Option with respect
           to which Grantee then has beneficial ownership;
 
                (ii) The excess, if any, of (x) the Applicable Price (as defined
           below) for each share of Issuer Common Stock over (y) the Purchase
           Price (subject to adjustment pursuant to Section 7), multiplied by
           the number of shares of Issuer Common Stock with respect to which the
           Option has not been exercised; and
 
                (iii) the excess, if any, of the Applicable Price over the
           Purchase Price (subject to adjustment pursuant to Section 7) paid
           (or, in the case of Option Shares with respect to which the Option
           has been exercised but the Closing Date has not occurred, payable) by
           Grantee for each share of Issuer Common Stock with respect to which
           the Option has been exercised and with respect to which Grantee then
           has beneficial ownership, multiplied by the number of such shares.
 
             (b) If Grantee exercises its right under this Section 8, Issuer
        shall, to the extent permitted by applicable law, within 10 business
        days after the Request Date, pay the Section 8 Repurchase Consideration
        to Grantee in immediately available funds, and contemporaneously with
        such payment Grantee shall surrender to Issuer the Option and the
        certificates evidencing the shares of Issuer Common Stock purchased
        thereunder with respect to which Grantee then has beneficial ownership,
        and Grantee shall warrant that it has sole record and beneficial
        ownership of such shares and that the same are then free and clear of
        all liens, claims, charges, and encumbrances of any kind
 
                                       C-6
<PAGE>   169
 
        whatsoever. Notwithstanding the foregoing, to the extent that prior
        notification to or approval of the Board of Governors of the Federal
        Reserve System or other regulatory authority is required in connection
        with the payment of all or any portion of the Section 8 Repurchase
        Consideration, Grantee shall have the ongoing option to revoke its
        request for repurchase pursuant to this Section 8, in whole or in part,
        or to require that Issuer deliver from time to time that portion of the
        Section 8 Repurchase Consideration that it is not then so prohibited
        from paying and promptly file the required notice or application for
        approval and expeditiously process the same (and each party shall
        cooperate with the other in the filing of any such notice or application
        and the obtaining of any such approval). If the Board of Governors of
        the Federal Reserve System or any other regulatory authority disapproves
        of any part of Issuer's proposed repurchase pursuant to this Section 8,
        Issuer shall promptly give notice of such fact to Grantee. If the Board
        of Governors of the Federal Reserve System or other agency prohibits the
        repurchase in part but not in whole, then Grantee shall have the right
        (i) to revoke the repurchase request, or (ii) to the extent permitted by
        the Board of Governors of the Federal Reserve System or other agency,
        determine whether the repurchase should apply to the Option and/or
        Option Shares and to what extent to each, and Grantee shall thereupon
        have the right to exercise the Option as to the number of Options Shares
        for which the Option was exercisable at the Request Date less the sum of
        the number of shares covered by the Option in respect of which payment
        has been made pursuant to Section 8(a)(ii) and the number of shares
        covered by the portion of the Option (if any) that has been repurchased.
        Grantee shall notify Issuer of its determination under the preceding
        sentence within five (5) days of receipt of notice of disapproval of the
        repurchase.
 
             Notwithstanding anything herein to the contrary, all of the
        Grantee's rights under this Section 8 shall terminate on the date of
        termination of this Option pursuant to Section 3(a).
 
             (c) For purposes of this Agreement, the "Applicable Price" means
        the highest of (i) the highest price per share of Issuer Common Stock
        paid for any such share by the person or groups described in Section
        8(d)(i); (ii) the price per share of Issuer Common Stock received by
        holders of Issuer Common Stock in connection with any merger or other
        business combination transaction described in Section 7(b)(i), 7(b)(ii)
        or 7(b)(iii); or (iii) the highest closing sales per share of Issuer
        Common Stock quoted on the NASDAQ/NMS (or if Issuer Common Stock is not
        quoted on the market or securities exchange on which such shares are
        traded as reported by a recognized source chosen by Grantee and
        reasonably acceptable to Issuer) during the 60 business days preceding
        the Request Date; provided, however, that in the event of a sale of less
        than all of Issuer's assets, the Applicable Price shall be the sum of
        the price paid in such sale for such assets and the current market value
        of the remaining assets of Issuer as determined by a nationally
        recognized investment banking firm selected by Grantee, divided by the
        number of shares of the Issuer Common Stock outstanding at the time of
        such sale. If the consideration to be offered, paid or received pursuant
        to either of the foregoing clauses (i) or (ii) shall be other than in
        cash, the value of such consideration shall be determined in good faith
        by an independent nationally recognized investment banking firm selected
        by Grantee and reasonably acceptable to Issuer, which determination
        shall be conclusive for all purposes of the Agreement.
 
             (d) As used herein, "Repurchase Event" shall occur if (i) any
        person (other than Grantee or any subsidiary of Grantee) shall have
        acquired beneficial ownership of (as such term is defined in Rule 13d-3
        promulgated under the 1934 Act), or the right to acquire beneficial
        ownership of, or any "group" (as such term is defined under the 1934
        Act) shall have been formed which beneficially owns or has the right the
        acquire beneficial ownership of, 50% or more of the then outstanding
        shares of Issuer Common Stock, or (ii) any of the transactions described
        in Section 7(b)(i), 7(b)(ii), or 7(b)(iii) shall be consummated.
 
             (e) In connection with the application of the provisions of this
        Section 8, Grantee acknowledges that Issuer's ability to fund the
        Section 8 Repurchase Consideration in accordance with the provisions of
        this Section 8 may be dependent upon the ability of Issuer to obtain the
        prior approval of the Board of Governors of the Federal Reserve System
        and applicable provisions of Florida law
 
                                       C-7
<PAGE>   170
 
        and that, unless there has been an agreement of the type described in
        Section 7(b), Issuer's obligations under this Section 8 do not impose on
        the Issuer an obligation to otherwise finance the payment of the Section
        8 Repurchase Consideration through the incurrence of indebtedness or the
        issuance of capital instruments or securities by Issuer in either case
        sufficient in amount to satisfy the payment of the Section 8 Repurchase
        Consideration. Accordingly, Issuer shall not be deemed to be in breach
        of this Section 8 if, after making its best efforts to obtain regulatory
        authorization for a capital distribution required to pay the Section 8
        Repurchase Consideration, it is unable to do so.
 
          9. Quotation: Listing.  If the Issuer Common Stock or any other
     securities to be acquired upon exercise of the Option are then authorized
     for quotation or trading or listing on the NASDAQ/NMS or any securities
     exchange, Issuer, upon the request of Grantee, will promptly file an
     application, if required, to authorize for quotation or trading or listing
     shares of Issuer Common Stock or other securities to be acquired upon
     exercise of the Option on the NASDAQ/NMS or such other securities exchange
     and will use its best efforts to obtain approval, if required, of such
     quotation or listing as soon as practicable.
 
          10. Division of Option.  This Agreement (and the Option granted
     hereby) are exchangeable, without expense, at the Option of the Grantee,
     upon presentation and surrender of this Agreement at the principal office
     of Issuer for other Agreements providing for Options of different
     denominations entitling the holder thereof to purchase in the aggregate the
     same number of shares of Issuer Common Stock purchasable hereunder. The
     terms "Agreement" and "Option" as used herein include any other Agreements
     and related Options for which this Agreement (and the Option granted
     hereby) may be exchanged. Upon receipt by Issuer of evidence reasonably
     satisfactory to it of the loss, theft, destruction, or mutilation of this
     Agreement, and (in the case of loss, theft, or destruction) of reasonably
     satisfactory indemnification, and upon surrender and cancellation of this
     Agreement, if mutilated, Issuer will execute and deliver a new Agreement of
     like tenor and date. Any such new Agreement executed and delivered shall
     constitute an additional contractual obligation on the part of the Issuer,
     whether or not the Agreement so lost, stolen, destroyed or mutilated shall
     at any time be enforceable by anyone.
 
        11. Miscellaneous
 
             (a) Expenses.  Each of the parties hereto shall bear and pay all
        costs and expenses incurred by it or on its behalf in connection with
        the transactions contemplated hereunder, including fees and expenses of
        its own financial consultants, investment bankers, accountants and
        counsel.
 
             (b) Waiver and Amendments.  Any provision of this Agreement may be
        waived at any time in writing by the party that is entitled to the
        benefits of such provision. This Agreement may not be modified, amended,
        altered, or supplemented except upon the execution and delivery of a
        written agreement executed by the parties hereto.
 
             (c) Entire Agreement: No Third-Party Beneficiary:
        Severability.  This Agreement, together with the Merger Agreement and
        the other documents and instruments referred to herein and therein,
        between Grantee and Issuer (a) constitutes the entire agreement and
        supersedes all prior agreements and understandings, both written and
        oral, between the parties with respect to the subject matter hereof and
        (b) is not intended to confer upon any person other than the parties
        hereto (other than any transferee of the Option Shares or any permitted
        transferee of this Agreement pursuant to Section 11(h)) any rights or
        remedies hereunder. If any terms, provision, covenant, or restriction of
        this Agreement is held by a court of competent jurisdiction or a federal
        or state regulatory agency to be invalid, void or unenforceable, the
        remainder of the terms, provisions, covenants, and restrictions of this
        Agreement shall remain in full force and effect and shall in no way be
        affected, impaired, or invalidated. If for any reason such court or
        regulatory agency determines that the Option does not permit Grantee to
        Acquire, or does not require Issuer to repurchase, the full number of
        shares of Issuer Common Stock as provided in Sections 3 and 8 (as
        adjusted pursuant to Section 7), it is the express intention of Issuer
        to allow Grantee to acquire or to require Issuer to repurchase such
        lesser number of shares as may be permissible without any amendment or
        modification hereof.
 
                                       C-8
<PAGE>   171
 
             (d) Governing Law.  This Agreement shall be governed and construed
        in accordance with the laws of the State of Alabama without regard to
        any applicable conflicts of law rules.
 
             (e) Descriptive Headings.  The description headings contained
        herein are for convenience of reference only and shall not affect in any
        way the meaning or interpretation of this Agreement.
 
             (f) Notices.  All notices and other communications hereunder shall
        be in writing and shall be deemed given if delivered personally,
        telecopied (with confirmation), or mailed by registered or certified
        mail (return receipt requested) to the parties at the following
        addresses (or at such other address for a party as shall be specified by
        like notice):
 
<TABLE>
<S>                  <C>
If to Issuer to:     United American Holding Corporation
                     105 West Colonial Drive
                     Orlando, Florida 32801
                     Telecopy Number: (407) 839-0646
                     Attention: James L. Hewitt
                                Chairman, President and Chief Executive Officer
 
with a copy to:      Smith, Mackinnon, Greeley, Bowdoin & Edwards, P.A.
                     Citrus Center, Suite 800
                     255 South Orange Avenue
                     Orlando, Florida 32801
                     Telecopy Number: (407) 843-2448
                     Attention: John P. Greeley, Esq.
 
If to Grantee to:    The Colonial BancGroup, Inc.
                     P.O. Box 1108
                     Montgomery, Alabama 36101
                     Telecopy Number: (334) 240-5069
                     Attention: W. Flake Oakley, IV
                                Chief Financial Officer
 
with a copy to:      Miller, Hamilton, Snider & Odom, L.L.C.
                     Suite 802
                     One Commerce Street
                     Montgomery, Alabama 36104
                     Telecopy Number: (334) 265-4533
                     Attention: Hugh C. Nickson, III
</TABLE>
 
             (g) Counterparts.  This Agreement and all amendments hereto may be
        executed in two counterparts, each of which shall be considered one and
        the same agreement and shall become effective when both counterparts
        have been signed, it being understood that both parties need not sign
        the same counterpart.
 
             (h) Assignment.  Neither this Agreement nor any of the rights,
        interests, or obligations hereunder or under the Option shall be
        assigned by any of the parties hereto (whether by operation of law or
        otherwise) without the prior written consent of the other party, except
        that Grantee may assign this Agreement to a wholly owned subsidiary of
        Grantee. Subject to the preceding sentence, this Agreement shall be
        binding upon, inure to the benefit of and be enforceable by the parties
        and their respective successors and assigns.
 
             (i) Further Assurances.  In the event of any exercise of the Option
        by Grantee, Issuer and Grantee shall execute and deliver all other
        documents and instruments and take all other action that may be
        reasonably necessary in order to consummate the transactions provided
        for by such exercise.
 
             (j) Specific Performance.  The parties hereto agree that this
        Agreement may be enforced by either party through specific performance,
        injunctive relief, and other equitable relief. Both parties
 
                                       C-9
<PAGE>   172
 
        further agree to waive any requirement for the securing or posting of
        any bond in connection with the obtaining of any such equitable relief
        and that this provision is without prejudice to any other rights that
        the parties hereto may have for any failure to perform this Agreement.
 
     IN WITNESS WHEREOF, Issuer and Grantee have caused this agreement to be
signed by their respective officers thereunto duly authorized, all as of the day
and year first written above.
 
<TABLE>
<S>                                                      <C>
                                                         UNITED AMERICAN HOLDING
ATTEST:                                                  CORPORATION
 
               By: /s/ CHARLES W. HALL                                  By: /s/ JAMES L. HEWITT
                   ----------------------------------------                 -------------------------------------------------
                   Charles W. Hall                                          James L. Hewitt
                 Vice President and                                            Chairman
               Chief Financial Officer
 
[CORPORATE SEAL]
 
ATTEST:                                                  THE COLONIAL BANCGROUP, INC.
 
                By: /s/ DONNA R. PIEL                                   By: /s/ W. FLAKE OAKLEY, IV
                   ----------------------------------------                 -------------------------------------------------
                    Donna R. Piel                                            W. Flake Oakley, IV
                 Assistant Secretary                                         Chief Financial Officer
 
[CORPORATE SEAL]
</TABLE>
 
                                      C-10
<PAGE>   173

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.          INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Pursuant to section 145 of the Delaware General Corporation Law, as
amended, and the Restated Certificate of Incorporation of the Registrant,
officers, directors, employees, and agents of the Registrant are entitled to
indemnification against liabilities incurred while acting in such capacities on
behalf of the Registrant, including reimbursement of certain expenses. In
addition, the Registrant maintains an officers and directors insurance policy
pursuant to which certain officers and all directors of the Registrant are
entitled to indemnification against certain liabilities, including reimbursement
of certain expenses, and the Registrant has indemnity agreements
("Indemnification Agreements") with certain officers and all of its directors
pursuant to which such persons may be indemnified by the Registrant against
certain liabilities, including expenses.

         The Indemnification Agreements are intended to provide additional
indemnification to directors and officers of BancGroup beyond the specific
provisions of the Delaware General Corporation Law. Under the Delaware General
Corporation Law, a company may indemnify its directors and officers in
circumstances other than those under which indemnification and the advance of
expenses are expressly permitted by applicable statutory provisions.

         Under the Delaware General Corporation Law, a director, officer,
employee or agent of a corporation (i) must be indemnified by the corporation
for all expenses incurred by him (including attorneys' fees) when he is
successful on the merits or otherwise in defense of any action, suit or
proceeding brought by reason of the fact that he is or was a director, officer,
employee or agent of the corporation, (ii) may be indemnified by the corporation
against expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement of any such proceeding (other than a proceeding by or in the right
of the corporation) even if he is not successful on the merits if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interest of the corporation (and, in the case of a criminal proceeding, had
no reasonable cause to believe his conduct was unlawful), and (iii) may be
indemnified by the corporation for expenses (including attorneys' fees) incurred
by him in the defense or settlement of a proceeding brought by or in the right
of the corporation, if he acted in good faith and in a manner he reasonably
believed to be in or not opposed to the best interests of the corporation;
provided that no indemnification may be made under the circumstances described
in clause (iii) if the director, officer, employee or agent is adjudged liable
to the corporation, unless a court determines that, despite the adjudication of
liability but in view of all of the circumstances, he is fairly and reasonably
entitled to indemnification for the expenses which the court shall deem proper.
The indemnification described in clauses (ii) and (iii) above (unless ordered by
a court) may be made only as authorized in a specific case upon determination by
(i) a majority of a quorum of disinterested directors, (ii) independent legal
counsel in a written opinion, or (iii) the stock holders, that indemnification
is proper in the circumstances because the applicable standard of conduct has
been met. Expenses (including attorneys' fees) incurred by an officer or
director in defending a proceeding may be advanced by the corporation prior to
the final disposition of the proceeding upon receipt of an undertaking by or on
behalf of the director or officer to repay


                                     II-1


<PAGE>   174



the advance if it is ultimately determined that he is not entitled to be
indemnified by the corporation. Expenses (including attorneys' fees) incurred by
other employees and agents may be advanced by the corporation upon terms and
conditions deemed appropriate by the board of directors.

         The indemnification provided by the Delaware General Corporation Law
has at least two limitations that are addressed by the Indemnification
Agreements: (i) BancGroup is under no obligation to advance expenses to a
director or officer, and (ii) except in the case of a proceeding in which a
director or officer is successful on the merits or otherwise, indemnification of
a director or officer is discretionary rather than mandatory.

         The Indemnification Agreements, therefore, cover any and all expenses
(including attorneys' fees and all other charges paid or payable in connection
therewith) incurred in connection with investigating, defending, being a witness
or participating in (including an appeal), or preparing to defend, be a witness
in or participate in, any threatened, pending or completed action, suit or
proceeding, or any inquiry or investigation, whether civil, criminal,
administrative or otherwise, related to the fact that such director or officer
is or was a director, officer, employee or agent of BancGroup or is or was
serving at the request of BancGroup as a director, officer, employee, agent,
partner, committee member or fiduciary of another corporation, partnership,
joint venture, employee benefit plan, trust or other enterprise, or by reason of
anything done or not done by such director or officer in any such capacity.

         The Indemnification Agreements also provide for the prompt advancement
of all expenses incurred in connection with any proceeding and obligate the
director or officer to reimburse BancGroup for all amounts so advanced if it is
subsequently determined, as provided in the Indemnification Agreements, that the
director or officer is not entitled to indemnification.

         The Indemnification Agreements further provide that the director or
officer is entitled to indemnification for, and advancement of, all expenses
(including attorneys' fees) incurred in any proceeding seeking to collect from
BancGroup an indemnity claim or advancement of expenses under the
Indemnification Agreements, BancGroup's Certificate of Incorporation, or the
Delaware General Corporation Law, regardless of whether the director or officer
is successful in such proceeding.

         The Indemnification Agreements impose upon BancGroup the burden of
proving that the director or officer is not entitled to indemnification in any
particular case, and the Indemnification Agreements negate certain presumptions
which might otherwise be drawn against a director or officer in certain
circumstances. Further, the Indemnification Agreements provide that if BancGroup
pays a director or officer pursuant to an Indemnification Agreement, BancGroup
will be subrogated to such director's or officer's rights to recover from third
parties.

         The Indemnification Agreements stipulate that a director's or officer's
rights under such contracts are not exclusive of any other indemnity rights a
director or officer may have; however, the Indemnification Agreements prevent
double payment. The Indemnification Agreements require the maintenance of
directors' and officers' liability insurance if such insurance can be maintained
on terms, including rates, satisfactory to BancGroup.


                                     II-2



<PAGE>   175



         The benefits of the Indemnification Agreements would not be available
if (i) the action with respect to which indemnification is sought was initiated
or brought voluntarily by the officer or director (other than an action to
enforce the right to indemnification under the Indemnification Agreements); (ii)
the officer or director is paid for such expense or liability under an insurance
policy; (iii) the proceeding is for an accounting of profits pursuant to Section
16(b) of the Securities Exchange Act of 1934, as amended; (iv) the conduct of
the officer or director is adjudged as constituting an unlawful personal
benefit, or active or deliberate dishonesty or willful fraud or illegality; or
(v) a court determines that indemnification or advancement of expenses is
unlawful under the circumstances.

         The Indemnification Agreements would provide indemnification for
liabilities arising under the Securities Act of 1933, as amended. BancGroup has
been advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in such act and is,
therefore, unenforceable.

ITEM 21.          EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

         (a)      The following is a list of exhibits that are included in Part
                  II of the Registration Statement. Such exhibits are separately
                  indexed elsewhere in the Registration Statement.


                                   DESCRIPTION


Exhibit 2         Plan of acquisition, reorganization, arrangement, liquidation
                  of successor:

         2.1      Agreement and Plan of Merger between The Colonial BancGroup,
                  Inc. and United American Holding Corporation, dated as of
                  September 8, 1997, included in the Prospectus portion of this
                  Registration Statement at Appendix A and incorporated herein 
                  by reference.

         2.2      United American Holding Corporation Directors' Stock Option
                  Plan, as amended and restated June 23, 1997 and form of United
                  American Holding Corporation Director Stock Option Agreement.

         2.3      Stock Option Agreement between The Colonial BancGroup, Inc.
                  and United American Holding Corporation, dated as of
                  September 8, 1997, included in the Prospectus portion of this
                  Registration Statement at Appendix C and incorporated herein
                  by reference.

Exhibit 4         Instruments defining the rights of security holders:

         4.1      Article 4 of the Restated Certificate of Incorporation of the
                  Registrant filed as Exhibit 4.1 to the Registrant's Current
                  Report on Form 8-K, dated February 21, 1995, and incorporated
                  herein by reference.


                                     II-3

<PAGE>   176

         4.2      Amendment to Article 4 of Registrant's Restated Certificate of
                  Incorporation, dated April 16, 1997, filed as Exhibit 4(A)(2)
                  to the Registrant's Registration Statement on Form S-4 (File
                  No. 333- 26217), effective May 9, 1997, and incorporated
                  herein by reference.

         4.3      Article II of the Bylaws of the Registrant filed as Exhibit
                  4.2 to the Registrant's Current Report on Form 8-K, dated
                  February 21, 1995, and incorporated herein by reference.

         4.4      Dividend Reinvestment and Class A Common Stock Purchase Plan
                  of the Registrant dated January 15, 1986, and Amendment No. 1
                  thereto dated as of June 10, 1986, filed as Exhibit 4(C) to
                  the Registrant's Registration Statement on Form S-4 (File No.
                  33-07015), effective July 15, 1986, and incorporated herein by
                  reference.

         4.5      Trust Indenture dated as of March 25, 1986, included as
                  Exhibit 4 to the Registrant's Amendment No. 1 to Registration
                  Statement on Form S-2, file number 33-4004, effective March
                  25, 1986, and incorporated herein by reference.

         4.6      All other instruments defining the rights of holders of
                  long-term debt of the Registrant and its subsidiaries - not
                  filed pursuant to clause 4(iii) of Item 601(b) of Regulation
                  S-K, to be furnished upon request of the Commission.

Exhibit 5         Opinion of Miller, Hamilton, Snider & Odom, L.L.C. as to 
                  certain Delaware law issues of the securities being 
                  registered.

Exhibit 8.1       Tax Opinion of Coopers & Lybrand L.L.P.

Exhibit 10        Employment Agreement between James L. Hewitt and Colonial 
                  Bank.

Exhibit 23        Consents of experts and counsel:

        23.1      Consents of Coopers & Lybrand L.L.P.
        
        23.2      Consent of Coopers & Lybrand L.L.P.
        
        23.3      Consent of Miller, Hamilton, Snider & Odom, L.L.C.

Exhibit 24        Power of Attorney.

Exhibit 99        Additional exhibits:


                                     II-4

<PAGE>   177



        99.1      Form of Proxy of United American Holding Corporation

         (b)      Financial Statement Schedules

                  The financial statement schedules required to be included
                  pursuant to this Item are not included herein because they are
                  not applicable or the required information is shown in the
                  financial statements or notes thereto.

ITEM 22.          UNDERTAKINGS.

         (a)      The undersigned hereby undertakes as follows as required by
                  Item 512 of Regulation S-K:

                  (1)      That prior to any public reoffering of the securities
                           registered hereunder through use of a prospectus
                           which is a part of this Registration Statement, by
                           any person or party who is deemed to be an
                           underwriter within the meaning of Rule 145(c), the
                           issuer undertakes that such reoffering prospectus
                           will contain the information called for by the
                           applicable registration form with respect to
                           reofferings by persons who may be deemed
                           underwriters, in addition to the information called
                           for by the other Items of the applicable form.

                  (2)      That every prospectus (i) that is filed pursuant to
                           paragraph (1) immediately above, or (ii) that
                           purports to meet the requirements of section 10(a)(3)
                           of the Act and is used in connection with an offering
                           of securities subject to Rule 415, will be filed as a
                           part of an amendment to the Registration Statement
                           and will not be used until such amendment is
                           effective, and that, for purposes of determining any
                           liability under the Securities Act of 1933, each such
                           post-effective amendment shall be deemed to be a new
                           Registration Statement relating to such securities
                           offered therein, and the offering of such securities
                           at that time shall be deemed to be the initial bona
                           fide offering thereof.

                  (3)      Insofar as indemnification for liabilities arising
                           under the Act may be permitted to directors,
                           officers, and controlling persons of the Registrant,
                           the Registrant has been advised that in the opinion
                           of the Securities and Exchange Commission such
                           indemnification is against public policy as expressed
                           in the Act and is, therefore, unenforceable. In the
                           event that a claim for indemnification against such
                           liabilities (other than the payment by the Registrant
                           of expenses incurred or paid by a director, officer
                           or controlling person of the Registrant in the
                           successful defense of any action, suit or proceeding)
                           is asserted by such director, officer or controlling
                           person in connection with the securities being
                           registered, the Registrant will, unless in the
                           opinion of its counsel the matter has been settled by
                           controlling precedent,


                                     II-5

<PAGE>   178



                           submit to a court of appropriate jurisdiction the
                           question whether such indemnification by it is
                           against public policy as expressed in the Act and
                           will be governed by the final adjudication of such
                           issue.

         (b)      The undersigned Registrant hereby undertakes to respond to
                  requests for information that is incorporated by reference
                  into the prospectus pursuant to Items 4, 10(b), 11, or 13 of
                  Form S-4, within one business day of receipt of such request,
                  and to send the incorporated documents by first class mail or
                  other equally prompt means. This includes information
                  contained in documents filed subsequent to the effective date
                  of the Registration Statement through the date of responding
                  to the request.

         (c)      The undersigned Registrant hereby undertakes to supply by
                  means of a post-effective amendment all information concerning
                  a transaction, and the company being acquired involved
                  therein, that was not the subject of and included in the
                  Registration Statement when it became effective.

         (d)      The undersigned Registrant hereby undertakes:

                  (1)      To file, during any period in which offers or sales
                           are being made, a post-effective amendment to this
                           Registration Statement:

                           (i)      To include any prospectus required by
                                    section 10(a)(3) of the Securities Act of
                                    1933;

                           (ii)     To reflect in the prospectus any facts or
                                    events arising after the effective date of
                                    the Registration Statement (or the most
                                    recent post-effective amendment thereof)
                                    which, individually or in the aggregate,
                                    represent a fundamental change in the
                                    information set forth in the Registration
                                    Statement;

                           (iii)    To include any material information with
                                    respect to the plan of distribution not
                                    previously disclosed in the Registration
                                    Statement or any material change to such
                                    information in the Registration Statement;

                  (2)      That, for the purpose of determining any liability
                           under the Securities Act of 1933, each such
                           post-effective amendment shall be deemed to be a new
                           registration relating to the securities offered
                           therein, and the offering of such securities at that
                           time shall be deemed to be the initial bona fide
                           offering thereof.

                  (3)      To remove from registration by means of a
                           post-effective amendment any of the securities being
                           registered which remain unsold at the termination of
                           the offering.


                                     II-6

<PAGE>   179



         (e)      The undersigned Registrant hereby undertakes that, for
                  purposes of determining any liability under the Securities Act
                  of 1933, each filing of the Registrant's annual report
                  pursuant to section 13(a) or section 15(d) of the Securities
                  Exchange Act of 1934 (and, where applicable, each filing of an
                  employee benefit plan's annual report pursuant to section
                  15(d) of the Securities Exchange Act of 1934) that is
                  incorporated by reference in the Registration Statement shall
                  be deemed to be a new Registration Statement relating to the
                  securities offered therein, and the offering of such
                  securities at that time shall be deemed to be the initial bona
                  fide offering thereof.


                                     II-7

<PAGE>   180



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant has duly caused this registration statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Montgomery,
Alabama, on the 31st day of October, 1997.

                                    THE COLONIAL BANCGROUP, INC.



                                    By: /s/ Robert E. Lowder
                                       -----------------------------------
                                            Robert E. Lowder
                                            Its Chairman of the Board
                                            of Directors and Chief
                                            Executive Officer

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed below by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
SIGNATURES                           TITLE                                  DATE
- ----------                           -----                                  ----
<S>                                  <C>                                    <C>
/s/ Robert E. Lowder                 Chairman of the Board                  **
- --------------------------           of Directors and Chief Executive
Robert E. Lowder                     Officer


/s/ W. Flake Oakley, IV              Chief Financial                        **
- --------------------------           Officer, Secretary
W. Flake Oakley, IV                  and Treasurer (Principal
                                     Financial Officer and
                                     Principal Accounting
                                     Officer)


          *
- --------------------------           Director                               **
Lewis Beville


          *                          Director                               **
- --------------------------
Young J. Boozer
</TABLE>


                                     II-8

<PAGE>   181


<TABLE>
<S>                                  <C>                                    <C>
          *                          Director                               **
- --------------------------
William Britton



          *                          Director                               **
- --------------------------
Jerry J. Chesser



          *                          Director                               **
- --------------------------
Augustus K. Clements, III


          *                          Director                               **
- --------------------------
Robert C. Craft



          *                          Director                               **
- --------------------------
Patrick F. Dye



          *                          Director                               **
- --------------------------
Clinton O. Holdbrooks



          *                          Director                               **
- --------------------------
D. B. Jones



          *                          Director                               **
- --------------------------
Harold D. King



          *                          Director                               **
- --------------------------
John Ed Mathison
</TABLE>



                                     II-9

<PAGE>   182



<TABLE>
<S>                                  <C>                                    <C>
          *                          Director                               **
- --------------------------
Milton E. McGregor



          *                          Director                               **
- --------------------------
John C. H. Miller, Jr.



          *                          Director                               **
- --------------------------
Joe D. Mussafer



          *                          Director                               **
- --------------------------
William E. Powell



          *                          Director                               **
- --------------------------
J. Donald Prewitt




          *                          Director                               **
- --------------------------
Jack H. Rainer



          *                          Director                               **
- --------------------------
Jimmy Rane



          *                          Director                               **
- --------------------------
Frances E. Roper



          *                          Director                               **
- --------------------------
Simuel Sippial
</TABLE>


                                    II-10

<PAGE>   183



<TABLE>
<S>                                  <C>                                    <C>
          *                          Director                               **
- --------------------------
Ed V. Welch
</TABLE>


*        The undersigned, acting pursuant to a power of attorney, has signed
         this Registration Statement on Form S-4 for and on behalf of the
         persons indicated above as such persons' true and lawful
         attorney-in-fact and in their names, places and stead, in the
         capacities indicated above and on the date indicated below.


/s/ W. Flake Oakley, IV
- --------------------------
W. Flake Oakley, IV
Attorney-in-Fact

**  Dated: October 31, 1997


                                    II-11

<PAGE>   184



                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D. C. 20549





                            -------------------------





                                   EXHIBITS TO

                                    FORM S-4


                             REGISTRATION STATEMENT

                                      UNDER

                           THE SECURITIES ACT OF 1933





                            -------------------------






                          THE COLONIAL BANCGROUP, INC.

             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)






<PAGE>   185



                                  EXHIBIT INDEX



<TABLE>
<CAPTION>
EXHIBIT                                                                             PAGE
- -------                                                                             ----

<S>               <C>                                                               <C>
Exhibit  2        Plan of acquisition, reorganization, arrangement,
                  liquidation of successor:

         2.1      Agreement and Plan of Merger between The Colonial BancGroup,
                  Inc. and United American Holding Corporation, dated as of
                  September 8, 1997, included in the Prospectus portion of this
                  registration statement at Appendix A and incorporated herein by
                  reference.

         2.2      United American Holding Corporation Directors' Stock Option
                  Plan, as amended and restated June 23, 1997, and form of
                  United American Holding Corporation Director Stock Option
                  Agreement.

         2.3      Stock Option Agreement between The Colonial BancGroup, Inc.
                  and United American Holding Corporation, dated as of
                  September 8, 1997, included in the Prospectus portion of this
                  Registration Statement at Appendix C and incorporated herein
                  by reference.


Exhibit  4        Instruments defining the rights of security holders:

         4.1      Article 4 of the Restated Certificate of Incorporation of the
                  Registrant filed as Exhibit 4.1 to the Registrant's Current
                  Report on Form 8-K, dated February 21, 1995, including the
                  amendment to Article 4 noted at Exhibit 4(B) above, and
                  incorporated herein by reference.

         4.2      Amendment to Article 4 or Registrant's Restated Certificate of
                  Incorporation, dated April 16, 1997, filed as Exhibit 4(A)(2)
                  to the Registrant's Registration Statement on Form S-4 (File
                  No. 333- 26217), effective May 9, 1997, and incorporated
                  herein by reference.

         4.3      Article II of the Bylaws of the Registrant filed as Exhibit
                  4.2 to the Registrant's Current Report on Form 8-K, dated
                  February 21, 1995, and incorporated herein by reference.

         4.4      Dividend Reinvestment and Class A Common Stock Purchase Plan
                  of the Registrant dated January 15, 1986, and Amendment No. 1
                  thereto dated as of June 10, 1986, filed as Exhibit 4(C) to
                  the Registrant's Registration Statement on Form S-4 (File No.
                  33-07015), effective July 15, 1986, and incorporated herein by
                  reference.

         4.5      Trust Indenture dated as of March 25, 1986, included as
                  Exhibit 4 to
</TABLE>


<PAGE>   186

<TABLE>
<S>               <C>                                                 
                  the Registrant's Amendment No. 1 to Registration Statement on
                  Form S-2, file number 33-4004, effective March 25, 1986, and
                  incorporated herein by reference.

         4.6      All other instruments defining the rights of holders of
                  long-term debt of the Registrant and its subsidiaries - not
                  filed pursuant to clause 4(iii) of Item 601(b) of Regulation
                  S-K to be furnished upon request of the Commission.

Exhibit  5        Opinion of Miller, Hamilton, Snider & Odom, L.L.C. as to 
                  certain Delaware law issues of the securities being 
                  registered.

Exhibit  8.1      Tax Opinion of Coopers & Lybrand L.L.P.

Exhibit  10       Employment Agreement between James L. Hewitt and Colonial
                  Bank.

Exhibit  23       Consents of experts and counsel:

         23.1     Consents of Coopers & Lybrand L.L.P.

         23.2     Consent of Coopers & Lybrand L.L.P.

         23.3     Consent of Miller, Hamilton, Snider & Odom, L.L.C.

Exhibit  24       Power of Attorney.

Exhibit  99       Additional exhibits:

         99.1     Form of Proxy of United American Holding Corporation
</TABLE>



<PAGE>   1




                                                                    EXHIBIT 2.2



         UNITED AMERICAN HOLDING CORPORATION DIRECTORS' STOCK OPTION
         PLAN, AS AMENDED AND RESTATED JUNE 23, 1997, AND FORM OF
         UNITED AMERICAN HOLDING CORPORATION DIRECTOR STOCK OPTION
         AGREEMENT.



<PAGE>   2



                              AMENDED AND RESTATED
                       UNITED AMERICAN HOLDING CORPORATION
                          DIRECTORS' STOCK OPTION PLAN

                                    ARTICLE I

                                   Definitions

         As used herein, the following terms have the meanings hereinafter set
forth unless the context clearly indicates to the contrary:

         (a) "Board" or "Board of Directors" shall mean the board of directors
of the Company.

         (b) "Company" shall mean United American Holding Corporation, a Florida
corporation.

         (c) "Option" shall mean an option to purchase Stock granted by the
Company pursuant to the provisions of this Plan.

         (d) "Option Price" shall mean the purchase price of each share of Stock
subject to Option, as defined in Section 5.2 hereof.

         (e) "Optionee" shall mean a Director who has received an Option granted
by the Company hereunder.

         (f) "Plan" shall mean this United American Holding Corporation
Directors' Stock Option Plan, as amended and restated.

         (g) "Stock" shall mean the common stock of the Company, par value $2.50
per share, or, in the event that the outstanding shares of Stock are hereafter
changed into or exchanged for shares of a different class of stock or securities
of the Company or some other corporation, such other stock or securities.

         (h) "Stock Option Agreement" shall mean the agreement between the
Company and the Optionee under which the Optionee may purchase Stock pursuant to
the Plan.

         (i) "Stock Option Committee" shall mean the committee administering the
Plan, pursuant to Article III hereof.


                                       1

<PAGE>   3



                                   ARTICLE II

                                    The Plan

         2.1 Name. This plan shall be known as the "United American Holding
Corporation Directors' Stock Option Plan," as amended and restated June 23,
1997.

         2.2 Effective Date. The Plan shall become effective on February 1,
1994.

                                   ARTICLE III

                               Plan Administration

         3.1 Stock Option Committee. This Plan shall be administered by the
Compensation Committee of the Board of Directors of the Company (the "Stock
Option Committee").

         3.2 Power of the Stock Option Committee. The Stock Option Committee
shall have full authority and discretion: (a) to construe and interpret the
Plan; and (b) to make all other determinations and take all other actions deemed
necessary or advisable for the proper administration of the Plan. All such
actions and determinations shall be conclusively binding upon all persons for
all purposes.

                                   ARTICLE IV

                         Shares of Stock Subject to Plan

         4.1 Limitations. Subject to adjustment pursuant to the provisions of
Section 4.3 hereof, the number of shares of Stock which may be issued and sold
hereunder pursuant to Stock Option Agreements shall not exceed one hundred
thousand (100,000) shares. All said one hundred thousand (100,000) shares of
Stock which may be issued and sold hereunder pursuant to Stock Option Agreements
as provided in the foregoing sentence, shall be covered by the Options specified
on Exhibit A attached hereto, which Options shall be granted to the Optionees
(and, as to each such Optionee, shall cover the number of shares of Stock)
specified on Exhibit A attached hereto. Shares issued pursuant to the exercise
of Options may be either authorized and unissued shares or shares issued and
thereafter acquired by the Company.

         4.2 Options Granted Under Plan. Shares of Stock with respect to which
an Option granted hereunder shall have been exercised shall not again be
available for Option hereunder. If Options granted hereunder shall terminate for
any reason without being wholly exercised, then the Stock Option Committee shall
have the discretion to grant new Options to Optionees hereunder covering the
number of shares to which such terminated Options related.

         4.3 Stock Adjustments; Mergers and Combinations. Notwithstanding any
other provision


                                       2
<PAGE>   4



in this Plan, if the outstanding shares of Stock are increased or decreased or
changed into or exchanged for a different number or kind of shares or other
securities of the Company or of any other corporation by reason of any merger,
sale of stock, consolidation, liquidation, recapitalization, reclassification,
stock split up, combination of shares, or stock dividend, the total number of
shares set forth in Section 4.1 shall be proportionately and appropriately
adjusted by the Stock Option Committee. If the Company continues in existence,
the number and kind of shares that are subject to any Option and the Option
Price per share shall be proportionately and appropriately adjusted without any
change in the aggregate price to be paid therefor upon exercise of the Option.
If the Company will not remain in existence or a majority of its stock will be
purchased or acquired by a single purchaser or group of purchasers acting
together, then the Stock Option Committee may (i) declare that all Options shall
terminate 30 days after the Stock Option Committee gives written notice to all
Optionees of their immediate right to exercise all Options then outstanding
(without regard to limitations on exercise otherwise contained in the Options),
or (ii) notify all Optionees that all Options granted under the Plan shall apply
with appropriate adjustments as determined by the Stock Option Committee to the
securities of the successor corporation to which holders of the numbers of
shares subject to such Options would have been entitled, or (iii) some
combination of aspects of (i) and (ii). The determination by the Stock Option
Committee as to the terms of any of the foregoing adjustments shall be
conclusive and binding.

                                    ARTICLE V

                                     Options

         5.1 Option Grant and Agreement. Each Option granted hereunder shall be
evidenced by a written Stock Option Agreement dated as of the date of grant and
executed by the Company and the Optionee.

         5.2 Option Price. Subject to adjustment pursuant to the provisions of
Section 4.3 hereof, the Option Price of each share of Stock subject to Option
shall be (i) Ten and no/100 Dollars ($10.00), less (ii) the amount of cash
dividends paid on each share of Stock by the Company between February 1, 1994
and the date the Option is exercised; provided, however, that the Option Price
shall not be less than the par value of the Stock on the date the Option is
exercised.

         5.3 Option Exercise. Options may be exercised in whole or in part from
time to time with respect to whole shares only, within the period permitted for
the exercise thereof. Notwithstanding any other provision in this Plan, no
option granted under the Plan may be exercised more than ten (10) years after
the date on which it is granted. Options shall be exercised by: (i) written
notice of intent to exercise the Option with respect to a specific number of
shares of Stock which is delivered by hand delivery or registered or certified
mail, return receipt requested, to the Company at its principal office; and (ii)
payment in full to the Company at such office of the amount of the Option Price
for the number of shares of Stock with respect to which the Option is then being
exercised. Payment of the Option Price shall be made in cash, certified check,
cashier's check, or personal check (and if made by personal check the shares of
Stock issued upon exercise of the Option shall be held


                                       3
<PAGE>   5



by the Company until the check has cleared); provided, however, that all or part
of the Option Price may also be paid by delivery to the Company of shares of
Stock previously acquired by the Optionee, which shall be valued for such
purposes based upon the then fair market value of the Stock on the date of
exercise, such valuation to be determined in good faith by the Stock Option
Committee using any reasonable method. In addition to and at the time of payment
of the Option Price, the Optionee shall pay to the Company in cash the full
amount of all federal, state, and local withholding or other employment taxes,
if any, applicable to the taxable income of the Optionee resulting from such
exercise, and any sales, transfer, or similar taxes imposed with respect to the
issuance or transfer of shares of Stock in connection with such exercise.

         5.4 Nontransferability of Option. No Option shall be transferred by an
Optionee otherwise than by will or the laws of descent and distribution. During
the lifetime of an Optionee, the Option shall be exercisable only by him or by
his legal guardian or personal representative.

         5.5 Effect of Death or Other Termination of Service as a Director.

                  (a)      If an Optionee is removed as a Director of the
                           Company or the Bank, then no Options held by such
                           Optionee, which are unexercised in whole or in part,
                           may be exercised on or after the date on which such
                           Optionee is removed as a Director. If the Optionee
                           resigns as a Director of the Company or the Bank,
                           then Options held by such Optionee, which are
                           unexercised in whole or in part, may be exercised for
                           thirty (30) days after the date of such resignation.

                  (b)      If an Optionee dies during his service as a Director
                           of the Company or the Bank, then the personal
                           representative or administrator of the estate of the
                           Optionee or the person or persons to whom an Option
                           granted hereunder shall have been validly transferred
                           by the personal representative or administrator
                           pursuant to the Optionee's will or the laws of
                           descent and distribution, as the case may be, shall
                           have the right to exercise the Optionee's Options for
                           ninety (90) days after the date of such death.

                  (c)      No transfer of an Option by the Optionee by will or
                           by the laws of descent and distribution shall be
                           effective to bind the Company unless the Company
                           shall have been furnished with written notice thereof
                           and an authenticated copy of the will and/or such
                           other evidence as the Company may deem necessary to
                           establish the validity of the transfer and the
                           acceptance by the transferee or transferees of the
                           terms and conditions of such Option.

         5.6 Rights as Shareholder. An Optionee or a transferee of an Option
shall have no rights as a shareholder with respect to any shares of Stock
subject to such Option prior to the purchase of such shares by exercise of such
Option as provided herein.

         5.7 Investment Intent. Upon or prior to the exercise of all or any
portion of an Option,


                                       4

<PAGE>   6



the Optionee shall furnish to the Company in writing such information or
assurances as, in the Company's opinion, may be necessary to enable it to comply
fully with the Securities Act of 1933, as amended, and the rules and regulations
thereunder and any other applicable statutes, rules, and regulations. Without
limiting the foregoing, if a registration statement is not in effect under the
Securities Act of 1933, as amended, with respect to the shares of Stock to be
issued upon exercise of an Option, the Company shall have the right to require,
as a condition to the exercise of such Option, that the Optionee represent to
the Company in writing that the shares to be received upon exercise of such
Option will be acquired by the Optionee for investment and not with a view to
distribution and that the Optionee agree, in writing, that such shares will not
be disposed of except pursuant to an effective registration statement, unless
the Company shall have received an opinion of counsel reasonably acceptable to
it to the effect that such disposition is exempt from the registration
requirements of the Securities Act of 1933, as amended. The Company shall have
the right to endorse on certificates representing shares of Stock issued upon
exercise of an Option such legends referring to the foregoing representations
and restrictions or any other applicable restrictions on resale or disposition
as the Company, in its discretion, shall deem appropriate.

                                   ARTICLE VI

                               Stock Certificates

         The Company shall not be required to issue or deliver any certificate
for shares of Stock purchased upon the exercise of any Option granted hereunder
or of any portion thereof, prior to fulfillment of all of the following
conditions:

                  (a) The admission of such shares to listing on all stock
exchanges on which the Stock is then listed, if any;

                  (b) The completion of any registration or other qualification
of such shares under any federal or state law or under the rulings or
regulations of the Securities and Exchange Commission or any other governmental
regulatory agency, which the Company shall in its sole discretion determine to
be necessary or advisable;

                  (c) The obtaining of any approval or other clearance from any
federal or state governmental agency which the Company shall in its sole
discretion determine to be necessary or advisable; and

                  (d) The lapse of such reasonable period of time following the
exercise of the Option as the Company from time to time may establish for
reasons of administrative convenience.

                                   ARTICLE VII

                Termination, Amendment, and Modification of Plan


                                       5

<PAGE>   7



         The Board may at any time terminate, and may at any time and from time
to time and in any respect amend or modify, the Plan; provided, however, that no
termination, amendment, or modification of the Plan shall without the written
consent of the Optionee of such Option adversely affect the rights of the
Optionee with respect to an Option or the unexercised portion thereof.

                                  ARTICLE VIII

                                  Miscellaneous

         8.1 Other Compensation Plans. The adoption of the Plan shall not affect
any other stock option or incentive or other compensation plans in effect for
the Company or the Bank, nor shall the Plan preclude the Company or the Bank
from establishing any other forms of incentive or other compensation for
directors, officers, or employees of the Company and/or the Bank.

         8.2 Plan Binding on Successors. The Plan shall be binding upon the
successors and assigns of the Company.

         8.3 Singular, Plural; Gender. Whenever used herein, nouns in the
singular shall include the plural, and the masculine pronoun shall include the
feminine gender.

         8.4 Applicable Law. This Plan shall be governed by and construed in
accordance with the laws of the State of Florida.

         8.5 Headings, etc., No Part of Plan. Headings of Articles and Sections
hereof are inserted for convenience and reference; they constitute no part of
the Plan.

         8.6 Severability. If any provision or provisions of this Plan shall be
held to be invalid, illegal, or unenforceable, the validity, legality, and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

         IN WITNESS WHEREOF, the Company has caused this Amended and Restated
United American Holding Corporation Directors' Stock Option Plan to be duly
executed by its Chairman of the Board on June 23, 1997.

                                             UNITED AMERICAN HOLDING CORPORATION


                                             By: 
                                                --------------------------------
                                                   James L. Hewitt
                                                   Chairman of the Board


                                       6

<PAGE>   8



                                    EXHIBIT A
                                       TO
                       UNITED AMERICAN HOLDING CORPORATION
                          DIRECTORS' STOCK OPTION PLAN


<TABLE>
<CAPTION>
                                                         Number of Shares
                                                        Covered by Options
                                                             Granted
Name of Director                                          to the Director
- ----------------                                        ------------------
<S>                                                     <C>   
James L. Hewitt                                                55,300

James P. Caruso                                                16,750

Vincent S. Hughes                                               8,750

John Cash                                                       9,400

Richard T. McCree                                               6,700

Mel R. Martinez                                                 3,100
                                                              -------

         Total                                                100,000
</TABLE>

                                       7
<PAGE>   9



                       UNITED AMERICAN HOLDING CORPORATION
                         DIRECTOR STOCK OPTION AGREEMENT


         THIS AGREEMENT (hereinafter "Agreement") is made by and between United
American Holding Corporation, a Florida corporation having offices at Orlando,
Florida (hereinafter "Company"), and _________________ currently serving as a
director of the Company and/or United American Bank of Central Florida (the
"Bank") (hereinafter "Optionee").

                                   WITNESSETH:

         WHEREAS, the granting of options to purchase common stock of the
Company hereunder is in accordance with the United American Holding Corporation
Directors' Stock Option Plan effective February 1, 1994, as amended and restated
June 23, 1997, and as the same may be amended from time to time.

         NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, the parties hereto agree as follows:

                                    ARTICLE I

                                   Definitions

         As used in this Agreement, all terms which are defined in the United
American Holding Corporation Directors' Stock Option Plan, as amended and
restated June 23, 1997, and as the same may from time to time be amended (the
"Plan"), shall have the meanings specified in the Plan, unless otherwise
specifically defined herein.

                                   ARTICLE II

                                 Effective Date

         2.1 Effective Date. The effective date of this Agreement shall be
February 1, 1994. For purposes of this Agreement, the term "Option" shall mean
the option to purchase Stock granted to the Optionee pursuant to the Plan.

                                   ARTICLE III

                        Shares of Stock Subject to Option

         3.1 Number of Shares. Subject to adjustment pursuant to the provisions
of Section 3.3 hereof, the Optionee may purchase up to ____________________
(________) shares of Stock hereunder, which shall be issued and sold by the
Company only upon exercise of the Option granted pursuant to Section 4.1 of this
Agreement.


                                       8
<PAGE>   10



         3.2 Shares Issued Pursuant to this Agreement. Shares of Stock with
respect to which the Option granted hereunder shall have been exercised shall
not again be available for Option hereunder.

         3.3 Stock Adjustments; Mergers and Combinations. Notwithstanding any
other provision in this Agreement, if the outstanding shares of Stock are
increased or decreased or changed into or exchanged for a different number or
kind of shares or other securities of the Company or of any other corporation by
reason of any merger, sale of stock, consolidation, liquidation,
recapitalization, reclassification, stock split up, combination of shares, or
stock dividend, the total number of shares subject to Option pursuant to this
Agreement shall be proportionately and appropriately adjusted by the Stock
Option Committee. If the Company continues in existence, the number and kind of
shares that are subject to any Option and the Option Price per share shall be
proportionately and appropriately adjusted without any change in the aggregate
price to be paid therefor upon exercise of the Option. If the Company will not
remain in existence or a majority of its stock will be purchased or acquired by
a single purchaser or group of purchasers acting together, then the Stock Option
Committee may (i) declare that all Options shall terminate 30 days after the
Stock Option Committee gives written notice to all Optionees of their immediate
right to exercise all Options then outstanding (without regard to limitations on
exercise otherwise contained in the Options), or (ii) notify all Optionees that
all Options granted under the Plan shall apply with appropriate adjustments as
determined by the Stock Option Committee to the securities of the successor
corporation to which holders of the numbers of shares subject to such Options
would have been entitled, or (iii) some combination of aspects of (i) and (ii).
The determination by the Stock Option Committee as to the terms of any of the
foregoing adjustments shall be conclusive and binding.

                                   ARTICLE IV

                                     Option

         4.1 Grant of the Option. As of February 1, 1994 (the "Grant Date"), the
Optionee is hereby granted an Option to purchase __________________________
(_______) shares of Stock, subject to adjustment pursuant to the provisions of
Section 3.3 hereof.

         4.2(a)   Term of Option. The Option shall expire on January 31, 2004.
                  The Option Price of each share of Stock subject to the Option
                  shall be (i) Ten and No/100 Dollars ($10.00), less (ii) the
                  amount of cash dividends paid on each share of Stock by the
                  Company between February 1, 1994 and the date the Option is
                  exercised; provided, however, that the Option Price shall not
                  be less than the par value of the Stock on the date the Option
                  is exercised.

            (b)   Option Exercise. The Option may be exercised in whole or in
                  part from time to time with respect to whole shares only,
                  within the period permitted for the exercise thereof.
                  Notwithstanding any other provision in this Agreement, the
                  Option may not be exercised after the expiration of ten (10)
                  years from its Grant Date. The Option shall be exercised by:
                  (A) written notice of intent to exercise the Option with
                  respect to a specific number of shares of Stock,


                                       9
<PAGE>   11



                  which is delivered by hand delivery or registered or certified
                  mail, return receipt requested, to the Company at its
                  principal office, Attention: Corporate Secretary; and (B)
                  payment in full to the Company at such office of the amount of
                  the Option Price for the number of shares of Stock with
                  respect to which the Option is then being exercised. Payment
                  of the Option Price shall be made in cash, certified check,
                  cashier's check, or personal check (and if made by personal
                  check the shares of Stock issued upon exercise of the Option
                  shall be held by the Company until the check has cleared);
                  provided, however, that all or part of the Option Price may
                  also be paid by delivery to the Company of shares of Stock
                  previously acquired by the Optionee, which shall be valued for
                  such purposes based upon the then fair market value of the
                  Stock on the date of exercise, such valuation to be determined
                  in good faith by the Stock Option Committee using any
                  reasonable method. Each such notice of exercise shall be
                  accompanied by any documents required by the Company under
                  Section 4.6 hereof. In addition to and at the time of payment
                  of the Option Price, the Optionee shall pay to the Company in
                  cash the full amount of all federal, state, and local
                  withholding or other employment taxes, if any, applicable to
                  the taxable income of the Optionee resulting from such
                  exercise, and any sales, transfer, or similar taxes imposed
                  with respect to the issuance or transfer of shares of Stock in
                  connection with such exercise.

         4.3 Nontransferability of Option. No Option shall be transferred by the
Optionee otherwise than by will or the laws of descent and distribution. During
the lifetime of the Optionee, the Option shall be exercisable only by him or by
his legal guardian or personal representative.

         4.4 Effect of Death or Termination of Service as a Director.

         (a)      If the Optionee is removed as a Director of the Company or the
                  Bank, then no Option held by the Optionee, which is
                  unexercised in whole or in part, may be exercised on or after
                  the date on which the Optionee is removed as a Director. If
                  the Optionee resigns as a Director of the Company or the Bank,
                  then the Options held by the Optionee which are unexercised in
                  whole or in part, may be exercised for thirty (30) days after
                  the date of such resignation.

         (b)      If the Optionee dies during his service as a Director of the
                  Company or the Bank, then the personal representative or
                  administrator of the estate of the Optionee or the person or
                  persons to whom the Option granted hereunder shall have been
                  validly transferred by the personal representative or
                  administrator pursuant to the Optionee's will or the laws of
                  descent and distribution, as the case may be, shall have the
                  right to exercise the Optionee's Option for ninety (90) days
                  after the date of such death.

         (c)      No transfer of the Option by the Optionee by will or by the
                  laws of descent and distribution shall be effective to bind
                  the Company unless the Company shall have been furnished with
                  written notice thereof and an authenticated copy of the will
                  and/or


                                       10
<PAGE>   12



                  such other evidence as the Company may deem necessary to
                  establish the validity of the transfer and the acceptance by
                  the transferee or transferees of the terms and conditions of
                  the Option.

         4.5 Rights as Shareholder. The Optionee or a transferee of the Option
shall have no rights as a shareholder with respect to any shares of Stock
subject to the Option prior to the purchase of such shares by exercise of the
Option as provided herein.

         4.6 Optionee's Intent as to Stock Acquired by Exercise of Option. The
Optionee agrees that, upon or prior to the exercise of all or any portion of the
Option, the Optionee shall furnish to the Company in writing such information or
assurances as, in the Company's opinion, may be necessary to enable it to comply
fully with the Securities Act of 1933, as amended, and the rules and regulations
thereunder and any other applicable statutes, rules, and regulations. Without
limiting the foregoing, if a registration statement is not in effect under the
Securities Act of 1933, as amended, with respect to the shares of Stock to be
issued upon exercise of the Option, the Optionee further agrees that the Company
shall have the right to require, as a condition to the exercise of the Option,
that the Optionee represent to the Company in writing that the shares to be
received upon exercise of the Option will be acquired by the Optionee for
investment and not with a view to distribution and that the Optionee agree, in
writing, that such shares will not be disposed of except pursuant to an
effective registration statement, unless the Company shall have received an
opinion of counsel reasonably acceptable to it to the effect that such
disposition is exempt from the registration requirements of the Securities Act
of 1933, as amended. The Optionee understands and agrees that the Company shall
have the right to endorse on certificates representing shares of Stock issued
upon exercise of the Option such legends referring to the foregoing
representations and restrictions or any other applicable restrictions on resale
or disposition as the Company, in its discretion, shall deem appropriate.

                                    ARTICLE V

                               Stock Certificates

         The Company shall not be required to issue or deliver any certificate
for shares of Stock purchased upon the exercise of the Option granted hereunder
or any portion thereof, prior to fulfillment of all of the following conditions:

         (a)      The admission of such shares to listing on all stock exchanges
                  on which the Stock is then listed, if any;

         (b)      The completion of any registration or other qualification of
                  such shares under any federal or state law or under the
                  rulings or regulations of the Securities and Exchange
                  Commission or any other governmental regulatory agency, which
                  the Company shall in its sole discretion determine to be
                  necessary or advisable;

         (c)      The obtaining of any approval or other clearance from any
                  federal or state


                                       11
<PAGE>   13



                  governmental agency which the Company shall in its sole
                  discretion determine to be necessary or advisable; and

         (d)      The lapse of such reasonable period of time following the
                  exercise of the Option as the Company from time to time may
                  establish for reasons of administrative convenience.

                                   ARTICLE VI

                Termination, Amendment, and Modification of Plan

         The Board may at any time terminate, and may at any time and from time
to time and in any respect amend or modify, the Plan; provided, however, that no
that no termination, amendment, or modification of the Plan shall without the
written consent of the Optionee adversely affect the rights of the Optionee with
respect to the Option granted hereunder or the unexercised portion thereof.

                                   ARTICLE VII

                                  Miscellaneous

         7.1 Other Compensation Plans. The adoption of the Plan and the
execution of this Agreement shall not affect any other stock option or incentive
or other compensation plans in effect for the Company or the Bank, nor shall the
Plan or this Agreement preclude the Company or the Bank from establishing any
other forms of incentive or other compensation for directors, officers, or
employees of the Company and/or the Bank.

         7.2 Agreement Binding on Successors. This Agreement shall be binding
upon the successors and assigns of the Company and the Optionee.

         7.3 Singular, Plural; Gender. Whenever used herein, nouns in the
singular shall include the plural, and the masculine pronoun shall include the
feminine gender.

         7.4 Applicable Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of Florida.

         7.5 Headings. Headings of Articles and Sections hereof are inserted for
convenience and reference only; they constitute no part of this Agreement.

         7.6 Severability. If any provision or provisions of this Agreement
shall be held to be invalid, illegal, or unenforceable, the validity, legality,
and enforceability of the remaining provisions shall not in any way be affected
or impaired thereby.

         7.7 Notices. Unless otherwise specified herein, notices required or
permitted to be given hereunder shall be in writing and shall be mailed by
registered or certified mail, return receipt


                                       12
<PAGE>   14



requested, to the principal office of the Company, Attention: Corporate
Secretary (if notice is to the Company) and to the Optionee at the Optionee's
address set forth below (if notice is to the Optionee), or to such other person
or such other address as any such party may designate by like notice to the
other party, and shall be deemed given as of the date and time received.

         7.8 Counterparts. This Agreement may be executed in any number of
counterparts, each of which, when so executed, shall be considered an original,
and all of which together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties hereto have set forth their hands and
seals.

         Dated as of June 23, 1997 effective as of February 1, 1994.

                                    UNITED AMERICAN HOLDING CORPORATION


                                    By:
                                       -----------------------------------------
                                         James L. Hewitt, Chairman

                                    OPTIONEE

                                    --------------------------------------------
                                    Name:

                                    Address:
                                            ------------------------------------

                                    --------------------------------------------


                                       13

<PAGE>   1



                                                                    EXHIBIT 5



           OPINION AS TO CERTAIN DELAWARE LAW ISSUES OF THE SECURITIES
                                BEING REGISTERED



<PAGE>   2



                                 October 31, 1997






                                                               Montgomery Office



The Colonial BancGroup, Inc.
P. O. Box 1108
Montgomery, AL  36101

         Re:      Registration Statement on Form S-4 relating to the issuance of
                  shares of Common Stock of The Colonial BancGroup, Inc., in
                  connection with the acquisition by merger of United American
                  Holding Corporation (the "Merger")

Gentlemen:

         We are familiar with the proceedings taken and proposed to be taken by
The Colonial BancGroup, Inc., a Delaware corporation (the "Company"), in
connection with the proposed issuance by the Company of shares of its Common
Stock, par value of $2.50 per share, in connection with the Merger and in
accordance with an Agreement and Plan of Merger, dated as of September 8, 1997
(the "Agreement"), by and between the Company and United American Holding
Corporation and the issuance by the Company of its Common Stock pursuant to
stock options being assumed by the Company in accordance with the Agreement. We
have also acted as counsel for the Company in connection with the preparation
and filing with the Securities and Exchange Commission under the Securities Act
of 1933, of the Registration Statement on Form S-4 referred to in the caption
above. In this connection we have reviewed such documents and matters of law as
we have deemed relevant and necessary as a basis for the opinions expressed
herein.

         Upon the basis of the foregoing, we are of the opinion that:

         (i) The Company is a corporation duly organized and existing under the
laws of


                                      1

<PAGE>   3


The Colonial BancGroup
October 31, 1997
Page 2



the State of Delaware;

         (ii) The shares of Common Stock of the Company referred to above, to
the extent actually issued pursuant to the Agreement will, when so issued, be
duly and validly authorized and issued and will be fully paid and nonassessable
shares of Common Stock of the Company;

         (iii) Under the laws of the State of Delaware, no personal liability
attaches to the ownership of the shares of Common Stock of the Company.

         We hereby consent to the filing of this opinion as an exhibit to the
above-referenced registration statement. In consenting to the inclusion of our
opinion in the Registration Statement, we do not thereby admit that we are a
person whose consent is required pursuant to Section 7 of the Securities Act of
1933, as amended.


                                    Sincerely yours,

                                    MILLER, HAMILTON, SNIDER & ODOM, L.L.C.


                                    /s/ Miller, Hamilton, Snider & Odom, L.L.C.

WHH/mfm


                                      2


<PAGE>   1



                                                                    EXHIBIT 8.1



                                   TAX OPINION



<PAGE>   2






Mr. Flake Oakley
Chief Financial Officer
Colonial BancGroup, Inc.
P.O. Box 1109
Montgomery, AL  36101

Dear Mr. Oakley:

For various business reasons, United American Holding Corporation (Acquired
Corporation) and The Colonial BancGroup, Inc. (BancGroup) have entered into an
Agreement and Plan of Merger (Agreement) on September 8, 1997. Pursuant to your
request, our letter addresses the income tax consequences of the proposed
transaction as outlined below. We will address whether the merger will qualify
as a reorganization within the meaning of Section 368(a) of the Internal Revenue
Code of 1986 (I.R.C.). We will also address additional income tax consequences
to Acquired Corporation, BancGroup, and shareholders.

BACKGROUND

Acquired Corporation, a Florida corporation, operates as a bank holding company
for its wholly owned subsidiary, United American Bank of Central Florida (Bank),
with its principal office in Orlando, Florida. BancGroup, a Delaware
corporation, is a bank holding company with Subsidiary banks in Florida
(Colonial Bank), Alabama, Georgia and Tennessee.

CERTAIN TERMS OF THE MERGER

At the effective date of the merger, Acquired Corporation will merge with and
into BancGroup, with BancGroup as the surviving corporation. Pursuant to the
terms of the transaction, each share of common stock of Acquired Corporation
outstanding and held by Acquired Corporation's shareholders other than shares
held by shareholders who perfect their dissenter's rights, will be converted by
operation of law and without any action on the part of the parties or the
holders thereof into shares of BancGroup common stock at a rate $36.50 divided
by the Market Value of BancGroup common stock as determined by the Agreement. On
the effective date and as a result of the merger, BancGroup will assume all the
outstanding options of Acquired Corporation, whether or not vested or
exercisable. Each such option will cease to represent a right to acquire
Acquired Corporation common stock and will, instead, represent a right to
acquire BancGroup common stock on substantially the same terms applicable to the
Acquired Corporation options except as specified in the Agreement.

In lieu of converting Acquired Corporation options into BancGroup options, the
holders of Acquired Corporation options may provide written notice, no later
than five days prior to the effective date of

                                      1

<PAGE>   3



the merger, to Acquired Corporation that they wish to surrender their Acquired
Corporation options to BancGroup to receive an amount of BancGroup common stock.
The BancGroup common stock will be equal to the difference between the total
value of the shares of BancGroup common stock to be issued pursuant to such
Acquired Corporation options less the aggregate exercise price of such Acquired
Corporation options divided by the market value.

No fractional shares of BancGroup common stock will be issued. Instead, each
holder of shares of Acquired Corporation stock having a fractional interest
arising upon the conversion of such shares into shares of BancGroup common stock
shall, at the time of surrender of the certificates previously representing
Acquired Corporation stock, be paid by BancGroup an amount in cash.

Any shareholder of Acquired Corporation who does not vote in favor of the
Agreement and who complies with certain procedures relating to the rights of
dissenting shareholders will be entitled to receive payment for the fair value
of his or her Acquired Corporation stock.

Further, after consummation of the merger, BancGroup and Acquired Corporation
anticipate merging two bank subsidiaries, the Bank and Colonial Bank. Colonial
Bank will be the surviving entity.

REPRESENTATIONS OF PARTIES

- - BancGroup and Acquired Corporation intend that the merger will qualify for
federal income tax purposes as a "reorganization" within the meaning of I.R.C.
Section 368(a) of the Code.

- - The fair market value of the BancGroup stock received by each shareholder of
Acquired Corporation pursuant to the terms of the Agreement will be
approximately equal to the fair market value of Acquired Corporation surrendered
in the exchange. The terms of the Agreement are the result of arm's-length
negotiations between unrelated parties.

- - There is no plan or intention by the shareholders of Acquired Corporation to
sell, exchange, or otherwise dispose of a number of shares of acquiring stock
received in the transaction that will reduce the Acquired Corporation
shareholders' ownership of BancGroup stock to a number of shares having a value,
as of the date of the transaction, of less than fifty percent of the value of
all of the formerly outstanding stock of Acquired Corporation as of the same
date. For purposes of this representation, shares of Acquired stock exchanged
for cash, and surrendered by dissenters, or exchanged for cash in lieu of
fractional shares of BancGroup stock will be treated as outstanding Acquired
Corporation stock on the date of the transaction. Shares of Acquired stock and
shares of BancGroup stock held by Acquired Corporation shareholders and
otherwise sold, redeemed or disposed of prior or subsequent to the transaction
will be considered in making this representation.

- - Following the merger, BancGroup will continue the historic business of
Acquired Corporation or use a significant portion of Acquired Corporation's
historic business assets in a business.


                                      2

<PAGE>   4




- - Acquired Corporation, BancGroup and Acquired Shareholders will pay their
respective expenses, if any, incurred in connection with the transaction.

- - No part of the consideration received by the Acquired Corporation shareholders
will be received by them in their capacity as debtor, creditor, employee, or any
way other than as shareholder.

- - The fair market value of the assets of Acquired Corporation transferred to
BancGroup will equal or exceed the sum of the liabilities assumed by BancGroup
plus the amount of liabilities, if any, to which the assets transferred are
subject.

- - The total adjusted basis of the assets of Acquired Corporation transferred to
BancGroup will equal or exceed the sum of the liabilities assumed by BancGroup
plus the amount of liabilities, if any, to which the assets transferred are
subject.

- - If nonqualified stock options to purchase Acquired Corporation common stock
are exchanged for nonqualified stock options to purchase BancGroup common stock,
then the difference between the option price and fair market value of BancGroup
common stock subject to options immediately after the exchange will be equal to
(or greater than) the difference between the option price and the fair market
value of Acquired Corporation common stock subject to options immediately before
the exchange. All other terms of the BancGroup nonqualified stock options will
be the same as those of Acquired Corporation's nonqualified stock options.

- - Any incentive stock options acquired from Acquired Corporation as a part of
the merger and reissued by BancGroup will be issued at substantially the same
terms, so as not to create a material modification as defined in I.R.C. Section
424.

TAX CONSEQUENCES TO ACQUIRED CORPORATION AND BANCGROUP

The merger of Acquired Corporation with and into BancGroup will constitute a
merger within the meaning of I.R.C. Section 368(a)(1)(A), provided that the
merger qualifies as a statutory merger pursuant to state law. Acquired
Corporation and BancGroup will each be "a party to the reorganization" within
the meaning of I.R.C. Section 368(b) of the Code. Based upon I.R.C. Sections
357(a) and 361(a), Acquired Corporation will recognize no gain or loss when it
transfers its assets to BancGroup in a constructive exchange solely for
BancGroup's stock and the assumption of Acquired Corporation's liabilities by
BancGroup. Acquired Corporation will also not recognize any gain or loss upon
the receipt of cash in the exchange if it distributes such property as part of
the plan of reorganization under I.R.C. Section 361(b).

Pursuant to I.R.C. Section 1032 of the Code, no gain or loss will be recognized
by BancGroup upon the acquisition by BancGroup of the assets of Acquired
Corporation in exchange for BancGroup common stock and the assumption of
Acquired Corporation's liabilities. BancGroup's basis in the assets acquired in
the transaction will be equal to the basis of the assets in the hands of
Acquired


                                      3

<PAGE>   5



Corporation immediately before the transaction under I.R.C. Section 362(b).
I.R.C. Section 1223(2) provides that BancGroup's holding period for each
Acquired Corporation asset received in the merger will include the period during
which the asset was held by Acquired Corporation immediately before the
transaction.

Pursuant to I.R.C. Section 381(a), BancGroup will succeed to and take into
account the items of Acquired Corporation described in I.R.C. Section 381(c),
subject to the conditions and limitations of I.R.C. Sections 381, 382, 383, 384,
and 1502 and the regulations thereunder. BancGroup will succeed to and take into
account the earnings and profits, or deficit in earnings and profits, of
Acquired Corporation as provided by I.R.C. Section 382(c)(2) of the Code and
Section 1.381(c)(2)-1 of the Regulations.

TAX CONSEQUENCES TO BANK AND COLONIAL BANK

The merger of Bank with and into Colonial Bank will constitute a merger within
the meaning of I.R.C. Section 368(a)(1)(A), provided that the merger qualifies
as a statutory merger pursuant to state law. Bank and Colonial Bank will each be
"a party to the reorganization" within the meaning of I.R.C. Section 368(b) of
the Code. Based upon I.R.C. Sections 357(a) and 361(a), Bank will recognize no
gain or loss when it transfers its assets to Colonial Bank in a constructive
exchange solely for Colonial Bank's stock and the assumption of Bank's
liabilities by Colonial Bank. Bank will also not recognize any gain or loss upon
the receipt of cash in the exchange if it distributes such property as part of
the plan of reorganization under I.R.C. Section 361(b).

Pursuant to I.R.C. Section 1032 of the Code, no gain or loss will be recognized
by Colonial Bank upon the acquisition by Colonial Bank of the assets of Bank in
exchange for Colonial Bank's common stock and the assumption of Bank's
liabilities. Colonial Bank's basis in the assets acquired in the transaction
will be equal to the basis of the assets in the hands of Bank immediately before
the transaction per I.R.C. Section 362(b). I.R.C. Section 1223(2) provides that
Colonial Bank's holding period for each Bank asset received in the merger will
include the period during which the asset was held by Bank immediately before
the transaction.

Pursuant to I.R.C. Section 381(a), Colonial Bank's will succeed to and take into
account the items of Bank described in I.R.C. Section 381(c), subject to the
conditions and limitations of I.R.C. Sections 381, 382, 383, 384, and 1502 and
the regulations thereunder. Colonial Bank will succeed to and take into account
the earnings and profits, or deficit in earnings and profits, of Bank as
provided by I.R.C. Section 382(c)(2) of the Code and Section 1.381(c)(2)-1 of
the Regulations.

TAX CONSEQUENCES TO ACQUIRED CORPORATION SHAREHOLDERS

I.R.C. Section 354 states that a shareholder who receives solely BancGroup
common stock in exchange for Acquired Corporation common stock will recognize no
gain or loss on the exchange, except with respect to cash received in lieu of a
fractional interest in BancGroup common stock. I.R.C. Section 358 of the Code
provides that the shareholder's tax basis in the BancGroup common

                                      4

<PAGE>   6



stock received in the exchange will be the same as the basis of the Acquired
Corporation common stock surrendered, decreased by the amount of cash (if any)
received by the shareholder and increased by the amount of gain (if any)
recognized in the exchange. I.R.C. Section 1223 of the Code provides that such
shareholder will include the period during which Acquired Corporation stock was
held in his holding period for the BancGroup common stock received in the
exchange.

The payment of cash in lieu of fractional shares of BancGroup common stock will
be treated as if the fractional shares were issued as part of the exchange and
then redeemed by BancGroup. These cash payments will be treated as having been
received as distributions in full payment in exchange for the stock redeemed as
provided in I.R.C. Section 302(a) of the Code. Generally, any gain or loss
recognized upon such exchange will be capital gain or loss, provided the
fractional share constitutes a capital asset in the hands of the exchanging
shareholder. The shareholders will recognize capital gain or loss equal to the
difference between the cash received and the basis of the fractional share
interest that would have been issued.

Holders of shares of Acquired Corporation Common Stock who receive cash upon the
exercise of any appraisal rights will be subject to a taxable transaction for
federal income tax purposes. Such a shareholder will recognize gain or loss
measured by the difference between the tax basis for his or her shares and the
amount of cash received pursuant to I.R.C. Section 1012 of the Code (unless the
receipt of cash is treated as a dividend, as described below).

In certain circumstances, the receipt of solely cash by an Acquired Corporation
shareholder could be treated as a dividend (to the extent of the shareholder's
ratable share of applicable earnings and profits) if the shareholder
constructively owns shares of Acquired Corporation Common Stock that are
exchanged for BancGroup Common Stock in the Merger. Generally, a shareholder
constructively owns stock that is owned by members of the shareholder's family,
and by certain controlled or related partnerships, estates, trusts and
corporations, pursuant to the constructive ownership rules of I.R.C. Section 318
of the Code, as well as any shares that the shareholder has an option to
acquire.

The receipt of solely cash by an Acquired Corporation shareholder in exchange
for his stock will not be treated as a dividend if such exchange or receipt
results in a meaningful reduction or a substantially disproportionate reduction
in the shareholder's ownership interest or results in a complete termination of
the shareholder's interest, taking into account, in each case, the constructive
ownership rules described above. A complete termination of a shareholder's
interest will occur if, after the receipt of cash in exchange for stock, the
shareholder owns no shares of stock in BancGroup. Thus, a shareholder who
receives solely cash for all of the stock actually owned by him will generally
qualify for capital gain treatment under the complete termination test if none
of the shares constructively owned by him are exchanged in the merger for
BancGroup Common Stock and the shareholder does not otherwise own, actually or
constructively, any shares of BancGroup Common Stock after the merger.

Where the complete termination of interest test is not satisfied with respect to
a particular shareholder (because, for example, Acquired Corporation shares
owned by a related party are exchanged for


                                      5

<PAGE>   7



BancGroup Common Stock in the merger), that shareholder will nonetheless
generally be entitled to capital gain treatment if the receipt of cash in
exchange for his shares results in a "substantially disproportionate" reduction
or a "meaningful" reduction in his ownership interest. I.R.C. Section 302 of the
Code provides that a shareholder's reduction in ownership interest should
normally be "substantially disproportionate," and capital gain treatment should
normally result, if (1) the shareholder owns less than 50% of the total combined
voting power of all classes of stock immediately after the merger, and (2) the
shareholder's proportionate stock interest in BancGroup immediately after the
merger is 20% or more below what his proportionate interest in BancGroup would
have been if he had received solely BancGroup Common Stock in the merger.

Acquired Corporation shareholders who constructively own stock in Acquired
Corporation should consult a tax advisor regarding the characterization of cash
payments received in the reorganization in exchange for Acquired Corporation
stock as either capital gain income or dividend income.

CONVERSION OF ACQUIRED CORPORATION OPTIONS INTO BANCGROUP OPTIONS

         INCENTIVE STOCK OPTIONS

The assumption and conversion of Acquired Corporation incentive stock options,
whether vested or exercisable, into rights to acquire BancGroup common stock
pursuant to the terms of the Agreement shall not be considered the granting of a
new option as long as the following requirements of I.R.C. Section 424 are met.
I.R.C. Section 424 provides that the excess of the aggregate fair market value
of the shares subject to the options immediately after the substitution or
assumption over the aggregate option price of such shares is not more than the
excess of the aggregate fair market value of all shares subject to the option
immediately before such substitution or assumption over the aggregate option
price of such shares. Section 424 also provides that the new option or the
assumption of the old option must not give the employee additional benefits
which he did not have under the old option. If the terms of the old option are
modified, extended, or renewed, such modification, extension, or renewal shall
be considered the granting of a new option which may disqualify the option as an
incentive stock option.

The shareholders of Acquired Corporation, in lieu of receiving BancGroup
options, can elect to receive shares of BancGroup common stock for the
difference between the exercise price of Acquired Corporation options and the
fair market value of BancGroup stock at the effective date of the Agreement.
This election, if made, is effectively a "cashless exercise" of an incentive
stock option (i.e. the option holder is treated as exercising all of the options
and remitting a portion of the BancGroup stock to Acquired Corporation in
satisfaction of the exercise price ("foregone stock"). The cashless exercise of
Acquired Corporation incentive stock options will result in the option holder
recognizing ordinary income equal to the amount of the bargain purchase element
of the BancGroup stock foregone. In addition, if Acquired Corporation's
incentive stock plan does not have a cashless exercise feature, the cashless
exercise of an incentive stock option by an option holder could be interpreted
as a material modification under I.R.C. Section 424. If the cashless exercise
feature constitutes a material modification, such modifications will result in
the deemed granting of new


                                      6

<PAGE>   8



options to all holders of incentive stock options. The new options will be
subject to the requirements of I.R.C. Section 424 at the date of material
modification. The exercise of a disqualified incentive stock option will entitle
Acquired Corporation to a compensation deduction when the option is exercised.

         NONQUALIFIED STOCK OPTIONS

The assumption and conversion of Acquired Corporation nonqualified stock options
into BancGroup nonqualified stock options pursuant to the merger will not result
in current federal income tax consequences if neither the nonqualified options
to purchase shares of Acquired Corporation stock nor the substituted options to
purchase BancGroup stock have a readily ascertainable value. I.R.C. Section
83(e) provides that I.R.C. Section 83 does not apply to the transfer of an
option without a readily ascertainable fair market value. The regulations under
Section 1.83-7 state that if an option is not actively traded on an established
market, the option does not have a readily ascertainable fair market value when
granted unless a taxpayer can show that the option is transferable by the
optionees; the option is exercisable immediately in full by the optionee; the
option or property subject to the option is not subject to any restriction or
condition that has a significant effect upon the fair market value of the
option; and, the fair market value of the option privilege is readily
ascertainable under the provision for determining fair market value in the case
of options not actively traded on an established market.

The shareholders of Acquired Corporation, in lieu of receiving BancGroup
options, can elect to receive shares of BancGroup common stock for the
difference between the exercise price of Acquired Corporation options and the
fair market value of BancGroup stock at the effective date of the Agreement. The
cashless exercise of nonqualified stock options does not alter the timing or
character of income recognition. The shareholders of Acquired Corporation will
recognize ordinary income for the fair market value of the stock received in
conjunction with the exercise of the options (i.e. the difference between the
fair market value of BancGroup stock and the exercise price). Acquired
Corporation is entitled to a corresponding compensation deduction of the same
amount.

SUMMARY

The merger of BancGroup and Acquired Corporation will qualify as a tax-free
reorganization within the meaning of I.R.C. Section 368(a)(1)(A). BancGroup's
basis in Acquired Corporation's assets will be the same as Acquired
Corporation's basis in its assets before the merger. The merger of Colonial Bank
and Bank will also qualify as a tax-free reorganization within the meaning of
I.R.C. Section 368(a)(1)(A). Colonial Bank's basis in Bank's assets will be the
same as Bank's basis in its assets before the merger. Acquired Corporation
shareholders will retain a substituted basis in the shares of BancGroup stock
received in the merger decreased by the amount of cash received and increased by
the amount of gain recognized in the deal. The only taxable consequences will be
to those shareholders who receive cash in lieu of fractional shares and those
shareholders who receive solely cash in the exchange upon perfecting their
dissenter's rights. Shareholders receiving cash must examine their actual and
constructive ownership of Acquired Corporation and BancGroup stock for

                                      7

<PAGE>   9



purposes of determining the tax consequences of the cash payments.

The conversion of Acquired Corporation incentive stock options directly into
BancGroup stock will result in the incentive stock option holders recognizing
ordinary income equal to the bargain purchase element of the BancGroup stock
foregone. In addition, if Acquired Corporation's incentive stock option plan
does not have a cashless exercise feature, the conversion of Acquired
Corporation incentive stock options directly into BancGroup stock could be
treated as a material modification of Acquired Corporation's incentive stock
option plan. I.R.C. Section 424 states that a material modification of an
incentive stock option plan results in the deemed granting of new options to all
incentive stock option holders subject to the requirements of I.R.C. Section 424
at the date of the material modification. The conversion of Acquired Corporation
nonqualified stock options directly into BancGroup stock will result in the
nonqualified option holders recognizing ordinary income equal to the fair market
value of BancGroup stock received. Acquired Corporation will be entitled to a
corresponding compensation deduction equal to the amount of ordinary income
recognized by Acquired Corporation option holders on the "cashless exercise" of
both incentive stock options and nonqualified stock options.

If you have any questions or comments, please call Thomas Lee or Mark Borden at
(205) 252-8400.

Very Truly Yours,

/s/ COOPERS & LYBRAND L.L.P.

Coopers & Lybrand L.L.P.

TJL:TMB:aoo



                                      8


<PAGE>   1


                                                                      EXHIBIT 10



                  EMPLOYMENT AGREEMENT BETWEEN JAMES L. HEWITT
                                AND COLONIAL BANK






<PAGE>   2



                              EMPLOYMENT AGREEMENT


         THIS AGREEMENT ("Agreement") is made and entered into as of the ____
day of _________, 1997, by and between Colonial Bank, an Alabama banking
corporation and a subsidiary of The Colonial BancGroup, Inc., a Delaware
corporation ("BancGroup"), and James L. Hewitt ("Executive"), a resident of the
State of Florida.

                                    PREAMBLE

         This Agreement is entered into pursuant to an Agreement and Plan of
Merger dated as of _______, 1997 (the "Merger Agreement") by and between
BancGroup and United American Holding Corporation ("Acquired Corporation") of
which United American Bank of Central Florida (the "Bank") is a subsidiary.
Executive currently serves as an officer of the Bank, which is located in
Orlando, Florida. Capitalized terms used herein that are not defined herein
shall have the same meanings given to such terms in the Merger Agreement.

         In consideration of the mutual covenants and agreements contained
herein and in the Merger Agreement, and effective with the Effective Date,
Colonial Bank and Executive hereby agree as follows:

                                   ARTICLE ONE

                                   EMPLOYMENT

         1.1 EMPLOYMENT OF EXECUTIVE. Commencing on the Effective Date, Colonial
Bank shall employ Executive as Chairman of the Central Florida Region and
Chairman of the loan committee for such region. Executive shall have such
duties, responsibilities and authority consistent with those


                                      1
<PAGE>   3



normally attending such a position. Executive shall exercise all reasonable and
necessary care in the performance of such duties and shall undertake such other
tasks as may be required from time to time by the board of directors of Colonial
Bank. The title and responsibilities of Executive may be changed at the
discretion of Colonial Bank, but such changes shall not diminish Executive's
right to the compensation provided for in Section 1.2.

         1.2 COMPENSATION AND BENEFITS. Executive shall receive an annual base
salary of not less than $250,000, paid bi-weekly. Executive shall also be
entitled to receive such adjustments in salary and such discretionary bonuses as
may be granted from time to time by Colonial Bank and to participate in Colonial
Bank's benefit plans that are available to executive officers of Colonial Bank
as provided in section 6.1(d) of the Merger Agreement.

         1.3 AUTOMATIC TERMINATION. Executive's employment under this Agreement
shall be automatically terminated upon his death or Complete Disability (as
defined below), whichever shall occur first. Upon such termination, this
Agreement shall be of no further force and effect, except that Executive shall
receive the Cash Payment referenced in section 2.1 below. "Complete Disability"
as used herein shall mean the inability of Executive, due to illness, accident,
or any other physical or mental incapacity, to perform the services provided for
in this Agreement for an aggregate of one hundred (120) days within any period
of twelve (12) consecutive months during the term hereof.

         1.4 CONFIDENTIALITY. Executive shall not, at any time during or after
his employment with Colonial Bank, use, disclose, confirm, furnish, or make
accessible to anyone, other than in the regular course of the business of
Colonial Bank and consistent with the best interests of Colonial Bank and its
affiliates, any knowledge or information of a confidential or secret nature with
respect to the business affairs, assets, operations, plans, or know-how of
Colonial Bank or its subsidiaries or affiliates, unless (and only to the extent)
such disclosure is required by applicable law or regulations. 



                                      2
<PAGE>   4

Section 1.5 shall be binding upon Executive, and shall inure to the benefit of
Colonial Bank, following any termination or expiration of this Agreement.

         1.5 TERM. Subject to Article Two and section 1.3 hereof, the term of
this Agreement shall commence on the Effective Date and shall expire on the date
that is the first anniversary of the Effective Date, unless extended by the
mutual agreement of the parties.


                                   ARTICLE TWO

                              SEVERANCE ARRANGEMENT

         2.1 SEVERANCE AND PAYMENT. Colonial Bank may at any time terminate
Executive's employment by giving written notice (the "Notice") to Executive 15
days before such termination is to be effective. Upon the effective date of such
termination (which shall be stated in the Notice), Colonial Bank shall pay to
Executive in cash a lump-sum payment (the "Cash Payment") equal to the total
salary that would otherwise be paid to the Executive for the remainder of the
term stated in section 1.5 using the annual cash salary paid to Executive by
Colonial Bank at the time the Notice is given for purposes of calculating such
payment. Thereafter, BancGroup and Colonial Bank shall have no further
obligation to Executive, and Executive shall have no claim against BancGroup or
Colonial Bank for any further payment or benefit, including, but not limited to,
any claim for stock options that are not vested at the date of the Notice or any
other benefits not vested at such time, or any right to continued participation
in any benefit plan. In addition to such other consideration as may be stated in
this Agreement, one half of the Cash Payment made pursuant to this section shall
be deemed a severance payment and one half of such payment shall be deemed
consideration expressly for the covenant not to compete contained in Article
Three hereof. 

         2.2 TERMINATION FOR CAUSE OR VOLUNTARY TERMINATION. (a) The obligation
of 



                                      3
<PAGE>   5

BancGroup to make the Cash Payment specified in section 2.1 hereof shall not
apply if (1) Executive voluntarily terminates his employment with Colonial Bank
for any reason or (2) BancGroup terminates Executive's employment for cause. For
the purpose of this section 2.2, "cause" shall occur if Executive is suspended
by any bank regulatory agency from participating in the management of Colonial
Bank or if Executive commits any one or more of the following acts: 

                  (i) Willful damage of Colonial Bank's or BancGroup's property,
         business reputation or goodwill;

                  (ii) The commission of a felony;

                  (iii) Theft, fraud, embezzlement or any other act of moral
         turpitude or deliberate neglect of duties with Colonial Bank; or

                  (iv) The use of alcohol or drugs if Executive is prevented
         thereby from efficiently performing his duties as an employee of
         Colonial Bank.

Cause, if any, shall be specified in the notice given under section 2.1 hereof.

         (b) In consideration for the covenant not to compete made by Executive
in Article Three of this Agreement, and in addition to such other consideration
as may be stated in this Agreement, upon the effective date of any termination
occurring as provided in this section 2.2, Colonial Bank may, in its sole
discretion, pay to Executive the Cash Payment specified in section 2.1 and
Executive shall accept such payment. Such payment shall be made on the effective
date of such termination, if the termination is made by BancGroup for cause, or
within 7 days after Executive gives notice to BancGroup or Colonial Bank of his
intention to terminate his employment.

                                  ARTICLE THREE

                             COVENANT NOT TO COMPETE



                                      4

<PAGE>   6


         Executive covenants and agrees with BancGroup that, subject to the
following sentence and assuming the Cash Payment has been paid to Executive in
case of termination under section 2.1 or 2.2, Executive shall not, without the
prior written consent of BancGroup, directly or indirectly, serve as a
consultant to, serve as a management official of, or be or become a major
stockholder of any financial institution (other than BancGroup) then having an
office in _______________ Counties, Florida. The prohibition in the foregoing
sentence shall apply during the remainder of the term of this Agreement as
specified in section 1.5. For the purposes of the covenants contained in this
Article Three, the following terms shall have the following respective meanings:

                  (a) The term "management official" shall refer to service of
         any type which gives the undersigned the authority to participate,
         directly or indirectly, in policy-making functions of the financial
         institution. This includes, but is not limited to, service as an
         officer, director or advisory director of the financial institution. It
         is expressly understood that Executive may be deemed a management
         official of the financial institution whether or not he holds any
         official, elected or appointed position with such financial
         institution.

                  (b) The term "financial institution" shall refer to any bank,
         bank holding company, savings and loan association, savings and loan
         holding company, banking related company or any other similar financial
         institution which engages in the business of accepting deposits or
         making loans or which owns or controls a company which engages in the
         business of accepting deposits or making loans. It is expressly
         understood that the term financial institution shall include the
         organizers of any financial institution as defined herein who, before
         or after the date of this agreement, make application to an appropriate
         federal or state regulatory authority, for approval to organize but
         whose application has not been finally approved as of the date hereof.


                                      5


<PAGE>   7


                  (c) The term "major stockholder" shall refer to the beneficial
         ownership of four percent (4%) or more of any class of voting
         securities of such company or the ownership of four percent (4%) or
         more of the total equity interest in such company, however denominated.

                  (d) The time within which this covenant not to compete is
         applicable shall be tolled if and while Executive is in breach thereof.

                                  ARTICLE FOUR

                    REASONABLENESS, SEVERABILITY AND REMEDIES

         The restrictions contained in Article Three are considered by the
parties to be fair and reasonable and necessary for the protection of the
legitimate business interests of BancGroup and Colonial Bank, and enforceable in
accordance with their terms. The provisions of Article Three as to scope of
activities, time and territory shall be construed or limited by the court so as
to make them enforceable, if otherwise they were not. Executive agrees that
BancGroup and Colonial Bank will or would suffer irreparable injury if Executive
were to violate any of the provisions of Article Three, and that in the event of
a breach by him of those provisions, Colonial Bank shall (in addition to all
other rights and remedies available to it, including, without limitation,
recovery of damages) be entitled to an injunction restraining him from such
breach and to no longer be obligated to make the payments otherwise due and
payable to him under this Agreement.

                                  ARTICLE FIVE

                                  MISCELLANEOUS

         5.1 MODIFICATION AND WAIVER. Any term or condition of this Agreement
may be waived 


                                      6

<PAGE>   8

at any time by the party hereto that is entitled to the benefit thereof;
provided, however, that no such waiver of any breach or default hereunder is to
be implied from the omission of the other party to take any action on account
thereof. A waiver on one occasion shall not be deemed to be a waiver of the same
or of any other breach or default on a subsequent occasion. This Agreement may
be modified or amended only by a writing signed by both Colonial Bank and
Executive.

         5.2 GOVERNING LAW. This Agreement shall be governed by and construed
and enforced in accordance with the law of the State of Florida.

         5.3 SUCCESSORS AND ASSIGNS. This Agreement requires the personal
services of, and shall not be assignable by, Executive. This Agreement shall be
binding upon, and shall inure to the benefit of, Colonial Bank and its
successors and assigns.

         5.4 SECTION CAPTIONS. Section captions contained in this Agreement are
for reference purposes only and are not intended to describe, interpret, define,
or limit the scope of this Agreement or any provision hereof.

         5.5 SEVERABILITY. Every provision of this Agreement is intended to be
severable. If any term of provision is illegal or invalid for any reason
whatsoever, such illegality or invalidity shall not affect the validity of the
remainder of this Agreement.

         5.6 INTEGRATED AGREEMENT. This Agreement constitutes the entire
understanding and agreement between the parties hereto with respect to the
subject matter hereof, and there are no agreements, understandings,
restrictions, representations, or warranties between the parties other than
those set forth or provided for herein.

         5.7 ATTORNEY'S FEES. In the event of any litigation between the parties
to enforce the terms of this Agreement, the prevailing party shall be entitled
to recover, from the other party, any and all reasonable attorney's fees and
court costs incurred in enforcing such terms.


                                      7

<PAGE>   9


         5.8 INTERPRETATION. No provision of this Agreement is to be interpreted
for or against any party because that party or that party's legal representative
drafted such provision.

         5.9 NOTICES. Any notices required to be given hereunder shall be in
writing and shall be deemed to have been duly given when personally delivered or
deposited in the United States mail, certified or registered, return receipt
requested, postage prepaid, addressed to the parties and their counsel at their
respective addresses listed below: 

         If to Colonial Bank:       Colonial Bank
                                    Post Office Box 1108 
                                    Montgomery, AL 36101

         Attention:                 W. Flake Oakley, Chief Financial Officer

         If to Executive:
                                    -----------------------

                                    -----------------------



                                      8

<PAGE>   10




         IN WITNESS WHEREOF, this Agreement has been duly executed under seal
and delivered by the respective parties as of the day and year first above
written.

AS TO THE UNDERSIGNED,
SIGNED IN THE PRESENCE OF:



- --------------------------------          -------------------------------------
                                          James L. Hewitt




ATTEST:                                   COLONIAL BANK



By:                                       By:           
   ------------------------------            -----------------------------------
   Secretary                                 W. Flake Oakley
                                             Chief Financial Officer


[Corporate Seal]


                                      9


<PAGE>   1



                                                                    EXHIBIT 23.1
                     CONSENTS OF COOPERS & LYBRAND L.L.P.



                       CONSENT OF INDEPENDENT ACCOUNTANTS





We consent to the incorporation by reference in this registration statement on
Form S-4 of our report dated February 20, 1997, except Notes 1 and 2 as to
which the date is June 20, 1997, on our audits of the consolidated financial
statements of The Colonial BancGroup, Inc., as of December 31, 1996 and 1995,
and for each of the three years in the period ended December 31, 1996. We also
consent to the reference to our firm under the caption "experts".


/s/ Coopers & Lybrand L.L.P.

Birmingham, Alabama
October 29, 1997


                          CONSENT OF TAX ACCOUNTANTS


We consent to the reference in this registration statement on form S-4 of our
firm under the caption "The Merger -- Certain Federal Income Tax Consequences,"
and to the inclusion of our opinion at Exhibit 8.1 of the registration
statement.



/s/ COOPERS & LYBRAND L.L.P.

Birmingham, Alabama
October 31, 1997




<PAGE>   1



                                                                    EXHIBIT 23.2





                       CONSENT OF INDEPENDENT ACCOUNTANTS





We consent to the incorporation by reference in this registration statement on
Form S-4 of our report dated January 27, 1997, except for Notes 5 and 11, as to
which the date is August 22, 1997, on our audits of the consolidated financial
statements of United American Holding Corporation and subsidiary.  We also
consent to the reference to our firm under the caption "Experts".


/s/ COOPERS & LYBRAND L.L.P.

Orlando, Florida
October 31, 1997




<PAGE>   1



                                                                    EXHIBIT 23.3



               CONSENT OF MILLER, HAMILTON, SNIDER & ODOM, L.L.C.







                               CONSENT OF COUNSEL




THE COLONIAL BANCGROUP, INC.

         WE HEREBY CONSENT TO USE IN THIS FORM S-4 REGISTRATION STATEMENT OF THE
COLONIAL BANCGROUP, INC., OF OUR NAME IN THE PROSPECTUS, WHICH IS A PART OF SUCH
REGISTRATION STATEMENT, UNDER THE HEADING "LEGAL MATTERS," TO THE SUMMARIZATION
OF OUR OPINION REFERENCED THEREIN, AND TO THE INCLUSION OF OUR OPINION AT
EXHIBIT 5 OF THE REGISTRATION STATEMENT.




/S/ MILLER, HAMILTON, SNIDER & ODOM, L.L.C.

OCTOBER 31, 1997





<PAGE>   1
 
                                                                      EXHIBIT 24
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENT, that each person whose signature appears
below constitutes and appoints Robert E. Lowder, Young J. Boozer, III, and W.
Flake Oakley, and each of them, his true and lawful attorney-in-fact and agent,
with full power of substitution and re-substitution, for him and in his name,
place and stead, to sign any reports or other filings which may be required to
be filed with the Securities and Exchange Commission on behalf of The Colonial
BancGroup, Inc. (the "Registrant"), in relation to BancGroup's proposed
acquisition of ASB Bancshares, Inc., South Florida Banking Corp., United
American Holding Corporation and First Central Bank of Florida (collectively,
the "Acquisitions"); to sign any registration statement and any amendments
thereto of the Registrant for the purpose of registering under the Securities
act of 1933, as amended, shares to be offered and sold by the Registrant in
relation to the Acquisitions; to file such other reports or other filings, such
registration statements and amendments thereto, with all exhibits thereto, and
any documents in connection therewith with the Securities and Exchange
Commission; and to file such notices, reports or registration statements (and
amendments thereto) with any such securities authority of any state which may be
necessary to register or qualify for an exemption from registration any
securities offered or sold by BancGroup in such states in relation to the
Acquisitions, granting unto said attorneys-in-fact and agents full power and
authority to do and perform each and every act and thing requisite to be done in
and about the premises as fully and to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or their substitutes, may lawfully do or cause to
be done by virtue hereof.
 
     This Power of Attorney may be executed in counterparts, each of which shall
be deemed to constitute an original.
 
     Done this 30th day of October, 1997, in Montgomery, Alabama.
 
<TABLE>
<S>                                                      <C>
/s/ ROBERT E. LOWDER                                     Chairman of the Board and Chief Executive
- -----------------------------------------------------    Officer
Robert E. Lowder
 
/s/ LEWIS BEVILLE                                        Director
- -----------------------------------------------------
Lewis Beville
 
/s/ YOUNG J. BOOZER                                      Director
- -----------------------------------------------------
Young J. Boozer
 
/s/ WILLIAM BRITTON                                      Director
- -----------------------------------------------------
William Britton
 
/s/ JERRY J. CHESSER                                     Director
- -----------------------------------------------------
Jerry J. Chesser
 
/s/ AUGUSTUS K. CLEMENTS, III                            Director
- -----------------------------------------------------
Augustus K. Clements, III
 
/s/ ROBERT CRAFT                                         Director
- -----------------------------------------------------
Robert Craft
</TABLE>
<PAGE>   2
 
/s/ PATRICK F. DYE                                       Director
- -----------------------------------------------------
Patrick F. Dye
 
/s/ CLINTON HOLDBROOKS                                   Director
- -----------------------------------------------------
Clinton Holdbrooks
 
/s/ D. B. JONES                                          Director
- -----------------------------------------------------
D. B. Jones
 
/s/ HAROLD D. KING                                       Director
- -----------------------------------------------------
Harold D. King
 
/s/ JOHN ED MATHISON                                     Director
- -----------------------------------------------------
John Ed Mathison
 
/s/ MILTON MCGREGOR                                      Director
- -----------------------------------------------------
Milton McGregor
 
/s/ JOHN C. H. MILLER, JR.                               Director
- -----------------------------------------------------
John C. H. Miller, Jr.
 
/s/ JOE D. MUSSAFER                                      Director
- -----------------------------------------------------
Joe D. Mussafer
 
/s/ WILLIAM E. POWELL, III                               Director
- -----------------------------------------------------
William E. Powell, III
 
/s/ J. DONALD PREWITT                                    Director
- -----------------------------------------------------
J. Donald Prewitt
 
/s/ JACK H. RAINER                                       Director
- -----------------------------------------------------
Jack H. Rainer
 
/s/ JIMMY RANE                                           Director
- -----------------------------------------------------
Jimmy Rane
 
/s/ FRANCES E. ROPER                                     Director
- -----------------------------------------------------
Frances E. Roper
 
/s/ SIMUEL SIPPIAL                                       Director
- -----------------------------------------------------
Simuel Sippial
 
/s/ ED V. WELCH                                          Director
- -----------------------------------------------------
Ed V. Welch

<PAGE>   1



                                                                    EXHIBIT 99.1



              FORM OF PROXY OF UNITED AMERICAN HOLDING CORPORATION


<PAGE>   2


                                                                    SOLICITED BY
                                                                    THE BOARD OF
                                                                       DIRECTORS
                                      PROXY

                       UNITED AMERICAN HOLDING CORPORATION
                         SPECIAL MEETING OF SHAREHOLDERS
                             _________________, 1997

         The undersigned hereby appoints James L. Hewitt and James P. Caruso,
and either of them, or such other persons as the board of directors of United
American Holding Corporation ("United American"), may designate, proxies for the
undersigned, with full power of substitution, to represent the undersigned and
to vote all of the shares of common stock of United American at the special
meeting of shareholders to be held on __________________, 1997, and at any and
all adjournments thereof.

                                                FOR       AGAINST     ABSTAIN

1.       To ratify, adopt, and approve the    
         Agreement and Plan of Merger dated   [     ]     [     ]     [     ]
         as of September 8, 1997, pursuant    
         to which United American will be       
         merged with and into The Colonial
         BancGroup, Inc.

2.       In their discretion, to vote on such other matters as may properly come
         before the meeting and to vote upon matters incident to the conduct of
         the meeting

     THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF UNITED
AMERICAN AND WILL BE VOTED AS DIRECTED HEREIN. IF NO DIRECTION IS GIVEN, THIS
PROXY WILL BE VOTED FOR PROPOSAL 1 AND IN ACCORDANCE WITH THE DISCRETION OF THE
PROXY HOLDERS RESPECTING SUCH OTHER MATTERS AS MAY PROPERLY COME BEFORE THE
SPECIAL MEETING AND TO VOTE UPON MATTERS INCIDENT TO THE CONDUCT OF THE SPECIAL
MEETING.

                           DATED:________________________________________, 1997


                           PHONE NO:
                           -----------------------------------------------------


                           -----------------------------------------------------
                           (Signature of Shareholder)

                           -----------------------------------------------------
                           (Signature of Shareholder, if more than one)

                           Please sign exactly as your name appears on the
                           envelope in which this material was mailed. If shares
                           are held jointly, each shareholder must sign. Agents,
                           executors, administrators, guardians and trustees
                           must give full title as such. Corporations should
                           sign by their president or authorized officer.





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