COBANCORP INC
8-K, 1997-11-14
STATE COMMERCIAL BANKS
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported)
                                November 2, 1997


                                 COBANCORP INC.
- --------------------------------------------------------------------------------
             (Exact name of Registrant as specified in its Charter)



      Ohio                          0-13166                     34-1465382
- --------------------------------------------------------------------------------
(State or other                (Commission File No.)           (IRS Employer
 jurisdiction of                                               Identification
 incorporation)                                                     No.)


1530 West River Road North, Elyria, Ohio                          44035
- --------------------------------------------------------------------------------
(Address of principal executive offices)                         (Zip Code)



Registrant's telephone number, including area code:            (216) 329-8000
- --------------------------------------------------------------------------------




                                       N/A
- --------------------------------------------------------------------------------
          (Former name or former address, if changed since last report)




<PAGE>   2




Item 5.  Other Events
- ---------------------

         On November 2, 1997, CoBancorp Inc. ("CoBancorp"), an Ohio Corporation,
and FirstMerit Corporation ("FirstMerit"), an Ohio Corporation, each registered
as a bank holding company under the Bank Holding Company Act of 1956, as
amended, entered into an Agreement of Affiliation and Plan of Merger
("Agreement"), pursuant to which CoBancorp will merge with and into FirstMerit,
with FirstMerit as the surviving corporation ("Merger"). Based on the closing
price of FirstMerit's common stock on October 31, 1997 of $25.50, the value of
the transaction on such date was approximately $157.0 million. On November 3,
1997, CoBancorp issued a press release announcing the Merger, a copy of which is
included as Exhibit 99 hereto and incorporated by reference herein.

         The Merger is structured as a tax-free exchange for CoBancorp
shareholders to the extent they receive FirstMerit common stock in exchange for
CoBancorp common stock, and will be accounted for as a purchase transaction. In
connection with the Merger, FirstMerit plans to issue between 3.1 and 4.3
million shares of its common stock.

         In accordance with the terms of the Agreement, each share of CoBancorp
common stock outstanding immediately prior to the effective time of the Merger
will be converted into the right to receive, at the election of the holder
thereof as provided in the Agreement either (i) $44.50 in cash, or (ii) a number
of shares of FirstMerit common stock equal to: (A) if the Average Closing Price
of FirstMerit common stock (the average of the reported daily closing prices of
FirstMerit Common Stock on the Nasdaq National Market during the period of ten
consecutive trading days ending on the tenth calendar day immediately prior to
the effective time)(the "Average Closing Price") is greater than $30.60, $48.53
divided by the Average Closing Price; (B) if the Average Closing Price is equal
to or greater than $28.05 but less than or equal to $30.60, 1.586; (C) if the
Average Closing Price is greater than $22.95 but less than $28.05, $25.50
divided by the Average Closing Price; (D) if the Average Closing Price is equal
to or greater than $20.40 but less than or equal to $22.95, 1.939; or (E) if the
Average Closing Price is less than $20.40, 1.939, subject to the right of
CoBancorp to terminate the Agreement unless FirstMerit agrees that the exchange
ratio shall be calculated by multiplying 1.939 by a factor equal to $20.40
divided by the Average Closing Price.

         CoBancorp shareholders may elect to exchange their common stock for
either common stock of FirstMerit, $44.50 in cash or a combination thereof,
provided that no less than 30% nor more than 49% of the total transaction value
will be paid in cash. A CoBancorp shareholder may also make no election.

         The following table details the relationship between the Average
Closing Price, the exchange ratio and the indicated value of FirstMerit common
stock to be exchanged for each share of CoBancorp common stock, an election to
receive only FirstMerit common stock, and assuming no prorations as discussed
below.


                                        2

<PAGE>   3


<TABLE>
<CAPTION>
                                                                      INDICATED VALUE OF FIRSTMERIT
        AVERAGE CLOSING PRICE               EXCHANGE RATIO                     COMMON STOCK
                                                                         TO COBANCORP SHAREHOLDER

<S>                                              <C>                             <C>
                      More than $30.60           $48.53 divided                  $48.53
                                                 by the Average
                                                  Closing Price

                      $30.60 to $28.05           Fixed at 1.586                   48.53
                                 30.60                    1.586                   48.53
                                 30.00                    1.586                   47.58
                                 29.00                    1.586                   45.99
                                 28.05                    1.586                   44.50

                      $28.04 to $22.96                 Floating
                                 28.04                    1.587                   44.50
                                 27.00                    1.648                   44.50
                                 26.00                    1.712                   44.50
                                 25.00                    1.780                   44.50
                                 24.00                    1.854                   44.50
                                 22.96                    1.938                   44.50

                      $22.95 to $20.40           Fixed at 1.939
                                 22.95                    1.939                   44.50
                                 22.00                    1.939                   42.66
                                 21.00                    1.939                   40.72
                                 20.40                    1.939                   39.55

                      Less than $20.40(1)        $20.40 divided                   39.55
                                                 by the Average
                                                 Closing Price,
                                                 multiplied by
                                                 1.939
</TABLE>

         (1) Assuming that CoBancorp elects to terminate and FirstMerit avoids
         such termination by agreeing to an exchange ratio equal to $20.40 
         divided by the Average Closing Price multiplied by 1.939.      

         If the CoBancorp shareholders elect less than 30% or more than 49% of
the total transaction value to be paid in cash, the Agreement provides that
shareholders will have certain of their elections allocated on a pro rata basis
so that no less than 30% nor more than 49% of the total transaction value will
be paid in cash.

         Consummation of the Merger is subject to certain customary conditions,
including, among others, (i) the approval of the Agreement and the transactions
contemplated thereby by the CoBancorp shareholders, and (ii) receipt of certain
regulatory approvals.


                                        3

<PAGE>   4



         The preceding description of the Agreement is qualified in its entirety
by reference to the copy of the Agreement included as Exhibit 2.1 hereto, and
which is incorporated by reference herein.

         Subsequent to the execution of the Agreement, and subject to
FirstMerit's right to terminate the Agreement if not executed, CoBancorp and
FirstMerit entered into a Stock Purchase Option dated as of November 3, 1997
(the "CoBancorp Stock Option"). Under the CoBancorp Stock Option, FirstMerit was
granted an irrevocable option to purchase, under certain circumstances, up to
687,311 shares of CoBancorp common stock at $40.00 per share. The number of
shares and the purchase price are subject to adjustment as described in the
CoBancorp Stock Option. Under certain circumstances, CoBancorp may be required
to repurchase the CoBancorp Stock Option or the shares acquired pursuant to the
exercise thereof. The CoBancorp Stock Option was granted by CoBancorp as a
condition and inducement to FirstMerit to enter into the Agreement.

         The preceding description of the CoBancorp Stock Option is qualified in
its entirety by reference to the copy of the CoBancorp Stock Option included as
Exhibit 2.2 hereto, and which is incorporated by reference herein.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits
- ---------------------------------------------------------------------------

         (a)      Exhibits

                  2.1      Agreement of Affiliation and Plan of Merger dated as
                           of November 2, 1997 by and between FirstMerit
                           Corporation and CoBancorp Inc.

                  2.2      Stock Purchase Option dated as of November 3, 1997 by
                           and between CoBancorp Inc. and FirstMerit Corporation

                  99       Press Release dated November 3, 1997 of CoBancorp
                           Inc.

                                    SIGNATURE

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


                                              COBANCORP INC.



Date:   November 10, 1997                     By: /s/ John S. Kreighbaum
      -------------------                         ------------------------------
                                                    John S. Kreighbaum
                                                    Chairman and Chief
                                                    Executive Officer

                                        4

<PAGE>   5



                                 COBANCORP, INC.
                           CURRENT REPORT ON FORM 8-K


                                INDEX OF EXHIBITS


EXHIBIT

                  2.1      Agreement of Affiliation and Plan of Merger dated
                           November 2, 1997 by and between FirstMerit
                           Corporation and CoBancorp Inc.

                  2.2      Stock Purchase Option dated November 3, 1997 by and
                           between CoBancorp Inc. and FirstMerit Corporation

                  99       Press Release dated November 3, 1997 of CoBancorp
                           Inc.


                                        5


<PAGE>   1






                                 EXHIBIT 2.1








<PAGE>   2
                                  EXHIBIT 2.1

       AGREEMENT OF AFFILIATION AND PLAN OF MERGER DATED NOVEMBER 2, 1997 BY AND
           BETWEEN FIRSTMERIT CORPORATION AND COBANCORP INC.
<PAGE>   3


                            AGREEMENT OF AFFILIATION
                               AND PLAN OF MERGER

         THIS AGREEMENT OF AFFILIATION AND PLAN OF MERGER, dated as of November
2, 1997 (this "Agreement"), is made by and between FirstMerit Corporation, an
Ohio corporation ("FirstMerit"), and CoBancorp Inc., an Ohio corporation
("CoBancorp").

         WHEREAS, the respective Boards of Directors of FirstMerit and CoBancorp
have each determined that it is in the best interests of their respective
shareholders for CoBancorp to merge with and into FirstMerit upon the terms and
subject to the conditions set forth herein;

         WHEREAS, the respective Boards of Directors of FirstMerit and CoBancorp
have each approved the merger of CoBancorp with and into FirstMerit, upon the
terms and subject to the conditions set forth herein;

         WHEREAS, the Board of Directors of FirstMerit intend to
contemporaneously with the merger of CoBancorp with and into FirstMerit, to
merge the wholly owned subsidiaries of CoBancorp, with and into a wholly owned
subsidiary of FirstMerit;

         WHEREAS, the Board of Directors of FirstMerit will appoint to the
FirstMerit Board of Directors at the Effective Time, an individual to be
recommended by CoBancorp (subject to the approval of the FirstMerit Board of
Directors);

         WHEREAS, as an inducement for FirstMerit to enter into this Agreement,
CoBancorp expects (but is not obligated) to provide FirstMerit with an option to
purchase up to 19.9 percent of the capital stock of CoBancorp, but only if
certain events occur, pursuant to the terms and conditions of the CoBancorp
Stock Purchase Option (as hereinafter defined);

         WHEREAS, for Federal income tax purposes, it is intended that the
merger shall qualify as a reorganization under the provisions of Section 368 of
the Internal Revenue Code of 1986, as amended (the "Code"); and

         WHEREAS, for accounting purposes, it is intended that the merger shall
be accounted for as a "purchase;"

         NOW, THEREFORE, in consideration of the foregoing premises and the
representations, warranties and agreements contained herein, and subject to the
terms and conditions set forth herein, the parties hereto hereby agree as
follows:

                                        1


<PAGE>   4



                                  1. THE MERGER

         1.1.     MERGER.

                  1.1.1. MERGER. At the Effective Time (as hereinafter defined),
CoBancorp will be merged with and into FirstMerit (the "Merger") in accordance
with the provisions of Section 1701.78 of the Ohio General Corporation Law
("OGCL"). FirstMerit shall be the surviving corporation in the Merger and shall
continue after the Merger to be incorporated under the laws of the State of Ohio
(the "Surviving Corporation"). The Merger shall have the effects specified in
the OGCL. The name of the Surviving Corporation shall be "FirstMerit
Corporation."

                  1.1.2. EFFECTIVE TIME. As soon as practicable following the
Closing (as hereinafter defined), FirstMerit and CoBancorp (the "Constituent
Corporations") shall cause a certificate of merger complying with the
requirements of Section 1701.81 of the OGCL (the "Certificate of Merger") to be
filed with the Secretary of State of the State of Ohio. The form of Certificate
of Merger is attached hereto as Exhibit 1.1.2, which has attached to it the
Amended and Restated Articles of Incorporation of the Surviving Corporation. The
Merger will become effective at the time and date which the Certificate of
Merger is filed with the Secretary of State of the State of Ohio (the "Effective
Time").

                  1.1.3. CONSUMMATION OF MERGER. The closing of the Merger (the
"Closing") will take place (i) at 10:00 a.m. (local time) at the principal
executive offices of FirstMerit as promptly as practicable after the date on
which all of the conditions set forth in Article 6 are satisfied or duly waived,
or (ii) at such other time and place and on such other date as FirstMerit and
CoBancorp may agree.

                  1.1.4. ARTICLES OF INCORPORATION AND REGULATIONS. The Amended
and Restated Articles of Incorporation and Code of Regulations of FirstMerit,
attached hereto as Exhibit 1.1.4, in effect immediately prior to the Effective
Time will be the Amended and Restated Articles of Incorporation and Regulations
of the Surviving Corporation after the Effective Time, until duly amended in
accordance with their respective terms and the OGCL.

                  1.1.5. DIRECTORS AND OFFICERS. The directors and officers of
FirstMerit immediately prior to the Effective Time will be the directors and
officers, respectively, of the Surviving Corporation, until their successors
have been duly elected or appointed and qualified or until their earlier death,
resignation or removal in accordance with the terms of the Surviving
Corporation's Amended and Restated Articles of Incorporation and Code of
Regulations and the OGCL. Immediately following Closing, the Board of Directors
of FirstMerit will appoint to the FirstMerit Board of Directors, an individual
to be recommended by CoBancorp, but subject to the approval of the FirstMerit
Board of Directors, such individual to serve in the class whose terms expire in
2000.

                                        2


<PAGE>   5



                  1.1.6. SERVICE OF PROCESS. B.&McD., Inc., whose address is 106
S. Main Street, Akron, Summit County, Ohio 44308, is the statutory agent upon
whom any process, notice or demand against FirstMerit, or the Surviving
Corporation may be served.

                             2. CONVERSION OF SHARES

         2.1. CONVERSION OF SHARES. Subject to the provisions of this Agreement,
at the Effective Time, automatically by virtue of the Merger and without any
action on the part of any party or shareholder, each share of the common stock,
no par value per share, of CoBancorp (the "CoBancorp Common Stock"), issued and
outstanding immediately prior to the Effective Time (excluding (i) shares held
by CoBancorp or any of the CoBancorp Subsidiaries (as defined below) or by
FirstMerit or any of the FirstMerit Subsidiaries (as defined below), in each
case other than in a fiduciary capacity or as a result of debts previously
contracted ("Treasury Shares") and (ii) Dissenting Shares (as defined below)),
shall cease to be outstanding and shall be converted into and become the right
to receive, at the election of the holder thereof as provided in Section 2.2,
subject to Sections 2.3 and 2.4 hereof, either

                  (1) a number of shares of common stock, no par value per
         share, of FirstMerit (the "FirstMerit Common Stock") equal to the
         Exchange Ratio (as defined below)(and the associated rights under the
         FirstMerit Rights Plan (as defined below))(the "Per Share Stock
         Consideration"), or

                  (2) $44.50 in cash (the "Per Share Cash Consideration"),

in such proportions as the holder thereof shall elect or be deemed to have
elected as provided in Section 2.2 hereof (the aggregate amount of cash payable
and the number of shares of FirstMerit Common Stock issuable pursuant to the
Merger is sometimes referred to as the "Merger Consideration"); provided,
however, that the aggregate amount of cash payable pursuant to the Merger to
satisfy such elections shall not be less than 30% of the aggregate Market Value
of the Merger Consideration (as defined below) (the "Minimum Cash Consideration
Amount") nor exceed 49% of the aggregate Market Value of the Merger
Consideration (the "Maximum Cash Consideration Amount").

         For purposes of this Section 2.2:

         (i)      The "Exchange Ratio" shall be 1.745 shares of FirstMerit
                  Common Stock, except that in the event the Average Closing
                  Price (as defined below) is:

                  (a)      greater than $30.60, then the Exchange Ratio shall be
                           equal to $48.53 divided by the Average Closing Price,
                           or

                  (b)      equal to or greater than $28.05 but less than or
                           equal to $30.60 per share, then the Exchange Ratio
                           shall be 1.586, or

                                        3


<PAGE>   6



                  (c)      greater than $22.95 but less than $28.05 per share,
                           then the Exchange Ratio shall be adjusted by
                           multiplying the Exchange Ratio by a factor equal to
                           $25.50 divided by the Average Closing Price, or

                  (d)      equal to or less than $22.95, subject to Section
                           7.1(h), then the Exchange Ratio shall be 1.939,

                  in each event rounded to three decimal places;

         (ii)     "Average Closing Price" shall mean the average of the reported
                  daily closing prices of FirstMerit Common Stock on the Nasdaq
                  National Market during the period of ten consecutive trading
                  days ending on the tenth calendar day immediately prior to the
                  Effective Time; and

         (iii)    "Market Value of the Merger Consideration" shall mean the sum
                  of (a) the product of the number of shares of FirstMerit to be
                  issued pursuant to the Merger and the Average Closing Price
                  and (b) the aggregate amount of cash payable pursuant to the
                  Merger.

                  2.2. ELECTION PROCEDURES. An election form and other
appropriate and customary transmittal materials (which shall specify that
delivery shall be effected, and risk of loss and title to the certificates
theretofore representing CoBancorp Common Stock ("CoBancorp Certificates") shall
pass, only upon proper delivery of such CoBancorp Certificates to an exchange
agent designated by FirstMerit (the "Exchange Agent")) in such form as
FirstMerit and the CoBancorp shall mutually agree ("Election Form") shall be
mailed 25 days prior to the anticipated Effective Time or on such other date as
the CoBancorp and FirstMerit shall mutually agree ("Mailing Date") to each
holder of record of CoBancorp Common Stock as of five business days prior to the
Mailing Date ("Election Form Record Date"). FirstMerit shall determine the
anticipated Effective Time (the "Anticipated Effective Time") in its sole
discretion and the failure of the Effective Time to occur at the Anticipated
Effective Time for purposes of this Section 2.2 shall not affect the time
periods which are established for purposes of these election procedures.

         Each Election Form shall permit a holder (or the beneficial owner
through appropriate and customary documentation and instructions) of CoBancorp
Common Stock to elect to receive only FirstMerit Common Stock with respect to
such holder's CoBancorp Common Stock ("Stock Election Shares"), to elect to
receive only cash with respect to such holder's CoBancorp Common Stock ("Cash
Election Shares"), to elect to receive FirstMerit Common Stock with respect to
those shares of CoBancorp Common Stock designated by the holder as Stock
Election Shares and cash with respect to the holder's remaining shares of
CoBancorp Common Stock or to indicate that such holder makes no election ("No
Election Shares"). For purposes of this Section 2.2, Dissenting Shares shall be
treated as Cash Election Shares but shall not be converted into the Per Share
Stock Consideration or the Per Share Cash Consideration except as provided in
Section 2.6.

                                        4


<PAGE>   7



         Any shares of CoBancorp Common Stock with respect to which the holder
(or the beneficial owner, as the case may be) shall not have submitted to the
Exchange Agent an effective, properly completed Election Form on or before 5:00
p.m. on the 20th day following the Mailing Date (or such other time and date as
FirstMerit and the CoBancorp may mutually agree) (the "Election Deadline") shall
be deemed to be "No Election Shares."

         FirstMerit shall promptly make available one or more Election Forms as
may be reasonably requested by all persons who become holders (or beneficial
owners) of CoBancorp Common Stock between the Election Form Record Date and the
close of business on the business day prior to the Election Deadline, and
CoBancorp shall provide to the Exchange Agent all information reasonably
necessary for it to perform as specified herein.

         Any such election shall have been properly made only if the Exchange
Agent shall have actually received a properly completed Election Form by the
Election Deadline. An Election Form shall be deemed properly completed only if
accompanied by one or more certificates (or customary affidavits and
indemnification regarding the loss or destruction of such certificates or the
guaranteed delivery of such certificates) representing all shares of the
CoBancorp Common Stock covered by such Election Form, together with duly
executed transmittal materials included in the Election Form. Any Election Form
may be revoked or changed by the person submitting such Election Form at or
prior to the Election Deadline. In the event an Election Form is revoked prior
to the Election Deadline, the shares of CoBancorp Common Stock represented by
such Election Form shall become No Election Shares and FirstMerit shall cause
the certificates representing CoBancorp Common Stock to be promptly returned
without charge to the person submitting the Election Form upon written request
to that effect from the person who submitted the Election Form.

         Subject to the terms of this Agreement and of the Election Form, the
Exchange Agent shall have reasonable discretion to determine whether any
election, revocation or change has been properly or timely made and to disregard
immaterial defects in the Election Forms, and any good faith decisions of the
Exchange Agent regarding such matters shall be binding and conclusive. Neither
FirstMerit nor the Exchange Agent shall be under any obligation to notify any
person of any defect in an Election Form.

         2.3. ALLOCATION PROCEDURES. Within five business days after the
Election Deadline, unless the Effective Time has not yet occurred, in which case
as soon thereafter as practicable, FirstMerit shall cause the Exchange Agent to
effect the allocation among the holders of CoBancorp Common Stock in accordance
with the Election Forms as follows:

         (a) Cash Elections Less Than Minimum Cash Consideration Amount. If the
amount of cash that would be payable upon the conversion into cash of the Cash
Election Shares is less than the Minimum Cash Consideration Amount (as
determined by the Exchange Agent), then:


                                        5


<PAGE>   8

                  (i) all Cash Election Shares shall be converted into the right
         to receive the Per Share Cash Consideration.

                  (ii) the Exchange Agent shall select first from among the No
         Election Shares on a pro rata basis and then (if necessary) from among
         the Stock Election Shares on a pro rata basis, a sufficient number of
         shares ("Cash Designated Shares") on a pro rata basis such that the
         aggregate amount of the Per Share Cash Consideration that will be
         payable pursuant to the Merger equals as closely as practicable the
         Minimum Cash Consideration Amount, and all Cash Designated Shares shall
         be converted into the right to receive the Per Share Cash
         Consideration, and

                  (iii) the No Election Shares and the Stock Election Shares
         which are not Cash Designated Shares shall be converted into the right
         to receive the Per Share Stock Consideration; or

         (b) Cash Elections More Than Maximum Cash Consideration Amount. If the
amount of cash that would be payable upon the conversion into cash of the Cash
Election Shares is greater than the Maximum Cash Consideration Amount (as
determined by the Exchange Agent), then:

                  (i) all Stock Election Shares and No Election Shares shall be
         converted into the right to receive FirstMerit Common Stock,

                  (ii) the Exchange Agent shall select from among the Cash
         Election Shares on a pro rata basis, a sufficient number shares ("Stock
         Designated Shares") such that the amount of cash that will be payable
         pursuant to the Merger equals as closely as practicable, but not in
         excess of, the Maximum Cash Consideration Amount, and all Stock
         Designated Shares shall be converted into the right to receive the Per
         Share Stock Consideration, and

                  (iii) the Cash Election Shares which are not Stock Designated
         Shares shall be converted into the right to receive the Per Share Stock
         Consideration; or

         (c) Cash Elections At Least Equal to Minimum Cash Consideration Amount
and No More Than Maximum Cash Consideration Amount. If the amount of cash that
would be payable upon the conversion into cash of the Cash Election Shares is at
least equal to the Minimum Cash Consideration Amount and is no more than the
Maximum Cash Consideration Amount (as determined by the Exchange Agent), then
subparagraphs (a) and (b) above and subparagraph (d) below shall not apply and
all Cash Election Shares shall be converted into the right to receive cash and
all Stock Election Shares and No Election Shares shall be converted into the
right to receive the Per Share Stock Consideration; and

         (d) Notwithstanding anything to the contrary herein, any CoBancorp
shareholder who has acquired shares of CoBancorp Common Stock through the
exercise of stock options, and who elects to receive FirstMerit Common Stock
with respect to (all or a portion of) such shareholder's 

                                        6


<PAGE>   9


CoBancorp Common Stock, shall be entitled to the maximum amount of the Per Share
Stock Consideration exchanged for the shareholder's Stock Election Shares being
allocated to the shareholder's shares of CoBancorp Common Stock acquired through
the exercise of stock options, with any required Per Share Cash Consideration
being allocated first to shares of CoBancorp Common Stock acquired other than
through the exercise of stock options, unless otherwise specifically elected by
such shareholder.

         2.4. FRACTIONAL SHARES. Notwithstanding any other provision hereof, no
fractional shares of FirstMerit Common Stock and no certificates or scrip
therefor, or other evidence of ownership thereof, will be issued in the Merger;
instead, FirstMerit shall pay to each holder of CoBancorp Common Stock who would
otherwise be entitled to a fractional share of FirstMerit Common Stock (after
taking into account all CoBancorp Certificates delivered by such holder) an
amount in cash (without interest) determined by multiplying such fraction by the
average of the last sale prices of FirstMerit Common Stock, as reported by the
Nasdaq/NMS reporting system (as reported in The Wall Street Journal or, if not
reported therein, in another authoritative source), for the five Nasdaq/NMS
trading days immediately preceding the Effective Date.

         2.5.     EXCHANGE PROCEDURES.

                  2.5.1. At or prior to the Effective Time, FirstMerit shall
deposit, or shall cause to be deposited, with the Exchange Agent, for the
benefit of the holders of CoBancorp Certificates, for exchange in accordance
with this Article 2, certificates representing the shares of FirstMerit Stock
("New Certificates") and an estimated amount of cash (such cash and New
Certificates, together with any dividends or distributions with respect thereto
(without any interest thereon), being hereinafter referred to as the "Exchange
Fund") to be paid pursuant to this Article 2 in exchange for outstanding shares
of CoBancorp Common Stock.

                  2.5.2. As promptly as practicable after the Effective Date,
FirstMerit shall send or cause to be sent to each former holder of record of
shares (other than Cash Election Shares, Treasury Shares or Dissenting Shares)
of CoBancorp Stock immediately prior to the Effective Time transmittal materials
for use in exchanging such shareholder's CoBancorp Certificates for the
consideration set forth in this Article 2. FirstMerit shall cause the New
Certificates into which shares of a shareholder's CoBancorp Common Stock are
converted on the Effective Date and/or any check in respect of the Per Share
Cash Consideration and any fractional share interests or dividends or
distributions which such person shall be entitled to receive to be delivered to
such shareholder upon delivery to the Exchange Agent of CoBancorp Certificates
representing such shares of CoBancorp Common Stock (or indemnity reasonably
satisfactory to FirstMerit and the Exchange Agent, if any of such certificates
are lost, stolen or destroyed) owned by such shareholder. No interest will be
paid on any such cash to be paid pursuant to this Article 2 upon such delivery.

                  2.5.3. Notwithstanding the foregoing, neither the Exchange
Agent nor any party hereto shall be liable to any former holder of CoBancorp
Common Stock for any amount properly delivered to a public official pursuant to
applicable abandoned property, escheat or similar laws.

                  2.5.4. No dividends or other distributions with respect to
FirstMerit Stock with a record date occurring after the Effective Time shall be
paid to the holder of any unsurrendered 

                                        7


<PAGE>   10


CoBancorp Certificate representing shares of CoBancorp Common Stock converted in
the Merger into shares of such FirstMerit Stock until the holder thereof shall
surrender such CoBancorp Certificate in accordance with this Article 2. After
the surrender of a CoBancorp Certificate in accordance with this Article 2, the
record holder thereof shall be entitled to receive any such dividends or other
distributions, without any interest thereon, which theretofore had become
payable with respect to shares of FirstMerit Stock represented by such CoBancorp
Certificate.

                  2.5.5. Any portion of the Exchange Fund that remains unclaimed
by the shareholders of CoBancorp for twelve months after the Effective Time
shall be paid to FirstMerit by the Exchange Agent. Any shareholders of CoBancorp
who have not theretofore complied with this Article 2 shall thereafter look only
to FirstMerit for payment of the shares of FirstMerit Stock, cash in lieu of any
fractional shares and unpaid dividends and distributions on the FirstMerit Stock
deliverable in respect of each share of CoBancorp Common Stock such shareholder
holds as determined pursuant to this Agreement, in each case, without any
interest thereon.

         2.6. DISSENTERS' RIGHTS. To the extent provided by the OGCL, any holder
of record of the CoBancorp Common Stock as of the date fixed for the
determination of shareholders of CoBancorp entitled to notice of the CoBancorp
Meeting (as defined below), and who shall have filed with CoBancorp, not later
than ten (10) days after such meeting, a written demand for payment of the fair
cash value of such shares in compliance with Section 1701.85 of the OGCL, and
whose shares shall not have been voted in favor of the Merger or adoption of
this Agreement, and who comply with all of the relevant provisions of such
Section (the "Dissenting Shares"), shall cease at the Effective Time to have any
of the rights of a shareholder in respect of such shares, shall not be converted
into or be exchangeable for the right to receive the Merger Consideration
(unless and until such holders shall have failed to perfect or shall have
effectively withdrawn or lost their dissenters' rights under the OGCL), and
shall only have the right to be paid the fair cash value of such shares under
Sections 1701.84 and 1701.85 of the OGCL. Any former holder of CoBancorp Common
Stock who after the Effective Time (i) surrenders his certificates representing
shares of CoBancorp Common Stock for exchange pursuant to Section 2.3 hereof, or
(ii) validly withdraws his written demand for payment of fair cash value of such
shares pursuant to Sections 1701.84 and 1702.85 of the OGCL, will thereupon be
entitled to receive the Merger Consideration as of the Effective Time pursuant
to this Agreement. If any such holder shall have failed to perfect or shall have
effectively withdrawn or lost such dissenters' rights, such holder's shares of
CoBancorp Common Stock shall thereupon be converted into and become exchangeable
for the right to receive, as of the Effective Time, the Merger Consideration, as
applicable, without any interest thereon, as provided in Section 2.3.

         CoBancorp shall give FirstMerit (i) prompt notice of any written
demands for payment for any CoBancorp Common Stock under Section 1701.85 of the
OGCL, attempted withdrawals of such demands, and any other instruments served
pursuant to the OGCL and received by CoBancorp relating to dissenters' rights,
and (ii) the opportunity to participate in all negotiations and proceedings with
respect to the exercise of dissenters' rights under the OGCL. CoBancorp shall
not, except with the prior written consent of the FirstMerit, voluntarily make
any payment with respect to any demands for payment for CoBancorp Common Stock
under the OGCL, offer to settle or settle any such demands or approve any
withdrawal of any such demands.



                                        8


<PAGE>   11

         2.7. ANTI-DILUTION PROVISIONS. In the event FirstMerit changes (or
establishes a record date for changing) the number of shares of FirstMerit
Common Stock issued and outstanding prior to the Effective Date as a result of a
stock split, stock dividend, recapitalization or similar transaction with
respect to the outstanding FirstMerit Common Stock and the record date therefor
shall be prior to the Effective Date, or exchanges FirstMerit Common Stock for a
different number or kind of shares or securities or is involved in any
transaction resulting in any of the foregoing, the Exchange Ratio shall be
proportionately adjusted.

         2.8. TREASURY SHARES. Each of the shares of CoBancorp Stock held as
Treasury Shares immediately prior to the Effective Time shall be canceled and
retired at the Effective Time and no consideration shall be issued in exchange
therefor.

         2.9. STOCK OPTIONS. The CoBancorp Disclosure Letter (as hereinafter
defined) sets forth a list of each stock option outstanding on the date of this
Agreement (collectively, the "CoBancorp Stock Options"), to purchase Common
Stock heretofore granted pursuant to the CoBancorp option plans. Without the
written consent of FirstMerit, no additional CoBancorp Stock Options shall,
after the date of this Agreement, be granted. Each stock option to purchase
CoBancorp Common Stock not exercised prior to the Effective Date shall on or
immediately before the Effective Date pursuant to the terms of the plan, be
cashed out at a price equal to the difference between the option exercise price
and the Per Share Cash Consideration. CoBancorp will provide FirstMerit for
FirstMerit's review and approval (which approval will not be unreasonably
withheld) at least seven days prior to the Effective Date, a list of the options
to be cashed out, including information detailing the option, option exercise
price, total to be paid and the person to receive the payment.

                 3. REPRESENTATIONS AND WARRANTIES OF FIRSTMERIT

         FirstMerit hereby represents and warrants to CoBancorp that:

         3.1. CORPORATE ORGANIZATION. FirstMerit is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Ohio and is duly qualified to do business as a foreign corporation and is in
good standing in each jurisdiction in which its ownership or lease of property
or the nature of the business conducted by it makes such qualification
necessary, except for such jurisdictions in which the failure to be so qualified
would not have a Material Adverse Effect (as hereinafter defined) on FirstMerit.
FirstMerit is registered as a bank holding company under the Bank Holding
Company Act of 1956, as amended (the "BHCA"). FirstMerit has the requisite
corporate power and authority to own, lease and operate its properties and
assets and to carry on its business as it is now being conducted.

         3.2. AUTHORITY. FirstMerit has the requisite corporate power and
authority to execute and deliver this Agreement and, except for any required
approval of the applicable Regulatory Authorities (as defined hereinafter), 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 and approved by the Board of Directors of FirstMerit,
including provisions for the resolution of certain issues by management, and no
other corporate proceedings on the part of FirstMerit are necessary to authorize
this Agreement or to consummate the transactions 

                                        9


<PAGE>   12

so contemplated. This Agreement has been duly executed and delivered by, and
constitutes a valid and binding obligation of, FirstMerit, enforceable against
FirstMerit in accordance with its terms, except as enforceability hereof may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium and
other similar laws affecting the enforcement of creditors' rights generally and
except that the availability of the equitable remedy of specific performance or
injunctive relief is subject to the discretion of the court before which any
proceedings may be brought.

         3.3. CAPITALIZATION. The authorized capital stock of FirstMerit
consists of 80,000,000 shares of FirstMerit Common Stock and 7,000,000 shares of
preferred stock. As of September 30, 1997, (i) 62,093,698 shares of FirstMerit
Common Stock (excluding 5,895,322 treasury shares) were validly issued and
outstanding, fully paid and nonassessable and not issued in violation of any
preemptive right of any shareholder of FirstMerit, and (ii) no shares of
preferred stock were issued and outstanding. Since September 30, 1997 and
through the date of this Agreement, FirstMerit has not issued any additional
shares of FirstMerit Common Stock or preferred stock other than pursuant to the
exercise of employee stock purchase rights or stock options under FirstMerit
Option Plans (as hereinafter defined) outstanding on September 30, 1997. Except
as contemplated by this Agreement, the FirstMerit Rights Plan (as hereinafter
defined) or in the FirstMerit Disclosure Letter (which is a letter attached
hereto as Exhibit 3.3, dated the date of this Agreement, from FirstMerit to
CoBancorp, such letter being identified by CoBancorp executing a copy thereof),
as of the date of this Agreement, there are no shares of capital stock of
FirstMerit authorized, issued or outstanding and there are no outstanding
subscriptions, options, warrants, scrip, rights, calls, convertible securities
or any other similar agreements, arrangements or commitments of any character
relating to the issued or unissued capital stock or other securities of
FirstMerit obligating, or which may obligate, FirstMerit to issue, deliver or
sell, or cause to be issued, delivered or sold, additional shares of capital
stock of FirstMerit or obligating, or which may obligate, FirstMerit to grant,
extend or enter into any subscription, option, warrant, scrip, right, call,
convertible security or other similar agreement, arrangement or commitment.
Except as set forth in the FirstMerit Disclosure Letter, there are no voting
trusts or other similar agreements, arrangements or commitments to which
FirstMerit or any FirstMerit Subsidiary (as hereinafter defined) is a party with
respect to the voting of the capital stock of FirstMerit. All of the shares of
FirstMerit Common Stock issuable in exchange for the CoBancorp Common Stock at
the Effective Time in accordance with this Agreement will be, when so issued,
duly authorized, validly issued, fully paid and nonassessable and will not be
subject to preemptive rights. FirstMerit has reserved for issuance the number of
shares of FirstMerit Common Stock necessary to satisfy FirstMerit's obligations
under Section 2.1.

         3.4. SUBSIDIARIES. The FirstMerit Disclosure Letter sets forth, as of
the date of this Agreement, the name and state of incorporation of each banking,
and each other significant subsidiary of FirstMerit (collectively, the
"FirstMerit Subsidiaries"). Except as set forth in the FirstMerit Disclosure
Letter, each of the FirstMerit Subsidiaries is a bank, or a corporation duly
organized, validly existing and in good standing under the laws of its
respective jurisdiction of incorporation or organization and is duly qualified
to do business as a foreign corporation in each jurisdiction in which its
ownership or lease of property or the nature of the business conducted by it
makes such qualification necessary, except for such jurisdictions in which the
failure to be so 


                                       10


<PAGE>   13

qualified would not have a Material Adverse Effect on FirstMerit. Each of the
FirstMerit Subsidiaries has the requisite corporate power and authority to own,
lease and operate its properties and assets and to carry on its businesses as
they are now being conducted.

         Except as set forth in the FirstMerit Disclosure Letter, as of the date
of this Agreement, all outstanding shares of capital stock of each FirstMerit
Subsidiary are owned by FirstMerit or another FirstMerit Subsidiary and are
validly issued, fully paid and nonassessable, have not been issued in violation
of any preemptive right and are owned free and clear of all liens, claims,
charges, options, encumbrances or agreements with respect thereto. Except as set
forth in the FirstMerit Disclosure Letter, as of the date of this Agreement,
neither FirstMerit nor any FirstMerit Subsidiary owns beneficially more than 5%
of any class of equity securities or any similar interests of any corporation,
bank, business, trust, association or similar organization. There are, as of the
date of this Agreement, no outstanding subscriptions, options, warrants, scrip,
rights, calls, convertible securities or any other similar agreements,
arrangements or commitments of any character relating to the issued or unissued
capital stock or other securities of any FirstMerit Subsidiary obligating, or
which may obligate, any FirstMerit Subsidiary to issue, deliver or sell, or
cause to be issued, delivered or sold, additional shares of its capital stock or
obligating, or which may obligate, any FirstMerit Subsidiary to grant, extend or
enter into any subscription, option, warrant, scrip, right, call, convertible
security or other similar agreement, arrangement or commitment.

         3.5.     INFORMATION IN DISCLOSURE DOCUMENTS, REGISTRATION STATEMENT, 
                  ETC.

         (a) None of the information with respect to FirstMerit or any
FirstMerit Subsidiary provided by FirstMerit for inclusion in the registration
statement to be filed with the Securities and Exchange Commission (the
"Commission") by FirstMerit on Form S-4 (or any other appropriate form) under
the Securities Act of 1933, as amended (the "Securities Act") for the purpose of
registering the shares of FirstMerit Common Stock to be issued in the Merger
(the "Registration Statement") will, at the time it becomes effective and at the
time of the CoBancorp Meeting (as hereinafter defined), contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they are made, not misleading. None of the
information with respect to FirstMerit or any FirstMerit Subsidiary provided by
FirstMerit for inclusion in any prospectus/proxy statement or information
statement or notice of FirstMerit and CoBancorp, or any amendments or
supplements thereto, required to be mailed to CoBancorp's shareholders in
connection with the Merger (the "Proxy" or "Proxy Statement") will, at the time
of the mailing of the Proxy Statement, and at the time of the CoBancorp Meeting,
contain any statement which, at the time it is made and in light of the
circumstances under which it is made, is false or misleading with respect to any
material fact, or which omits to state any material fact necessary in order to
make the statements therein not false or misleading or necessary to correct any
statement in any earlier communication with respect to the solicitation of any
proxy for the CoBancorp Meeting which has become false or misleading. The
Registration Statement will comply as to form in all material respects with the
provisions of the Securities Act and the rules and regulations promulgated
thereunder. The Proxy Statement will comply as to form in all material respects
with the provisions of the Securities 


                                       11


<PAGE>   14



Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and
regulations promulgated thereunder.

         (b) All documents that FirstMerit is responsible for filing with any
Governmental Entity (as hereafter defined) will comply as to form in all
material respects with applicable law. None of the information with respect to
FirstMerit or any FirstMerit Subsidiary provided by FirstMerit for inclusion in
any document to be filed with any regulatory authority in connection with the
transactions contemplated hereby will contain any statement of a material fact
which is untrue as of the time that such statement is made.

         3.6. CONSENTS AND APPROVALS; NO VIOLATION. Except as set forth in the
FirstMerit Disclosure Letter, neither the execution and delivery of this
Agreement by FirstMerit, nor the consummation by FirstMerit of the transactions
contemplated hereby, nor compliance by FirstMerit with any of the provisions
hereof will (a) conflict with or result in any breach of any provision of its
Amended and Restated Articles of Incorporation or Code of Regulations, (b)
violate, conflict with, constitute a default (or an event which, with notice or
lapse of time or both, would constitute a default) under, or result in the
termination of, or accelerate the performance required by, or result in a right
of termination or acceleration of, or result in the creation of any lien,
security interest, charge or other encumbrance upon any of the properties or
assets of FirstMerit or any of the FirstMerit Subsidiaries under, any of the
terms, conditions or provisions of any note, bond, mortgage, indenture, deed of
trust, license, lease, agreement or other instrument or obligation to which
FirstMerit or any FirstMerit Subsidiary is a party or to which they or any of
their respective properties or assets may be subject, except for such
violations, conflicts, breaches, defaults, terminations, accelerations or
creations of liens or other encumbrances, which, individually or in the
aggregate, will not have a Material Adverse Effect on FirstMerit, (c) violate
any judgment, ruling, order, writ, injunction, decree, statute, rule or
regulation applicable to FirstMerit or any FirstMerit Subsidiary or any of their
respective properties or assets, except for such violations which, individually
or in the aggregate, will not have a Material Adverse Effect on FirstMerit, or
(d) require any consent, approval, authorization or permit of or from, or filing
with or notification to, any court, governmental authority or other regulatory
or administrative agency or commission, domestic or foreign ("Governmental
Entity"), except (i) pursuant to the Exchange Act and the Securities Act, (ii)
filing the certificate of merger pursuant to the OGCL, (iii) filings required
under the securities or blue sky laws of the various states, (iv) filings with,
and approval by, the Board of Governors of the Federal Reserve System (the
"FRB"), (v) filings with, and approval by, the Office of the Comptroller of the
Currency (the "OCC"), (vi) filings with, and approval by, the Office of Thrift
Supervision ("OTS"), (vii) filings with, and approval by, the Ohio Division of
Financial Institutions ("Division"), (viii) filings and approvals pursuant to
any applicable state takeover laws ("State Takeover Approvals"), (ix) consents,
approvals, authorizations, permits, filings or notifications in connection with
compliance with applicable provisions of federal and state securities laws
relating to the regulation of broker-dealers, investment advisors, or stock
transfer agents, or (x) consents, approvals, authorizations, permits, filings or
notifications which have either been obtained or made prior to the Closing or
which, if not obtained or made, will neither, individually or in the aggregate,





                                       12
<PAGE>   15

have a Material Adverse Effect on FirstMerit nor restrict FirstMerit's legal
authority to execute and deliver this Agreement and consummate the transactions
contemplated hereby.

         3.7. REPORTS AND FINANCIAL STATEMENTS. Since December 31, 1996,
FirstMerit has filed all reports, registrations and statements, together with
any required amendments thereto, that it was required to file with the
Commission, including, but not limited to Forms 10-K, Forms 10-Q, Forms 8-K and
proxy statements (collectively, the "FirstMerit Reports"). FirstMerit has
previously made available or furnished, or, with respect to the FirstMerit
Reports filed after the date of this Agreement, will promptly furnish, CoBancorp
with true and complete copies of each of the FirstMerit Reports. As of their
respective dates (but taking into account any amendments filed prior to the date
of this Agreement), the FirstMerit Reports complied, or, with respect to
FirstMerit Reports filed after the date of this Agreement, will comply, in all
material respects with all the rules and regulations promulgated by the
Commission and did not contain, or, with respect to FirstMerit Reports filed
after the date of this Agreement, will not contain, any 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, in light of the circumstances under
which they were made, not misleading. The audited consolidated financial
statements and unaudited interim financial statements of FirstMerit included in
the FirstMerit Reports (the "FirstMerit Financial Statements") have been
prepared in accordance with generally accepted accounting principles applied on
a consistent basis (except as may be indicated therein or in the notes thereto)
and fairly present the consolidated financial position of FirstMerit and the
FirstMerit Subsidiaries as at the dates thereof and the consolidated results of
operations and cash flows for the periods then ended subject, in the case of the
unaudited interim financial statements, to normal year-end audit adjustments,
any other adjustments described therein and the absence of footnotes.

         3.8. TAXES. Except as set forth in the FirstMerit Disclosure Letter,
FirstMerit and each FirstMerit Subsidiary have prepared in good faith and duly
and timely filed, all federal, state, local and foreign income, franchise,
sales, real and personal property and other tax returns and reports required to
be filed by them on or before the date of this Agreement, except where the
failure to file would not have a Material Adverse Effect on FirstMerit. Except
as set forth in the FirstMerit Disclosure Letter, FirstMerit and each FirstMerit
Subsidiary have paid, or have adequately reserved or have made adequate accruals
(in accordance with generally accepted accounting principles) with respect to,
all taxes, interest and penalties shown to be owing on all such returns or
reports. There are no liens for federal, state, local or foreign taxes upon the
assets of FirstMerit or of any FirstMerit Subsidiary, except for statutory liens
for taxes and assessments not yet delinquent or the validity of which is being
contested in good faith by appropriate proceedings. As of the date of this
Agreement, except as set forth in the FirstMerit Disclosure Letter, neither
FirstMerit nor any of the FirstMerit Subsidiaries is a party to any action or
proceeding, nor is any such action or proceeding threatened, by any Governmental
Entity for the assessment or collection of taxes which are material in amount,
and no deficiency notices or reports have been received by FirstMerit or any of
the FirstMerit Subsidiaries in respect of any material deficiencies for any tax,
assessment or government charges.



                                       13
<PAGE>   16

         3.9. EMPLOYEE PLANS. All employee bonus, deferred compensation,
pension, retirement, profit sharing, stock option, stock purchase, employee
stock ownership, stock appreciation rights, savings, consulting, severance,
collective bargaining, group insurance, fringe benefit and other employee
benefit, incentive and welfare plans, policies, contracts and arrangements and
all trust agreements related thereto, now in effect and relating to any present
or former directors, officers or employees of FirstMerit or FirstMerit
Subsidiaries, whether or not described in Section 3(3) of Employee Retirement
Income Security Act of 1974, as amended ("ERISA"), are identified in the
FirstMerit Disclosure Letter ("FirstMerit Employee Plans"). All of the
FirstMerit employee plans have been maintained, operated and administered in
substantial compliance with their terms, and FirstMerit, all of the FirstMerit
Subsidiaries and all of the FirstMerit Employee Plans currently comply, and have
at all relevant times complied, in all material respects with ERISA, the Code,
and any other applicable laws. FirstMerit has previously delivered or made
available to CoBancorp copies of all FirstMerit Employee Plans, in each case as
in effect on the date of this Agreement.

         3.10. MATERIAL CONTRACTS. Except as set forth in the FirstMerit
Disclosure Letter or disclosed in the FirstMerit Reports, neither FirstMerit nor
any FirstMerit Subsidiary is, as of the date of this Agreement, a party to, or
is bound by, (a) any material lease not made in the ordinary course of business
of FirstMerit, (b) any agreement, arrangement, or commitment not made in the
ordinary course of business which materially restricts the conduct of any line
of business of FirstMerit, (c) any material agreement, indenture or other
instrument not specifically disclosed in the FirstMerit Financial Statements
relating to the borrowing of money by FirstMerit or the guarantee by FirstMerit
of any such obligation (other than trade payables and instruments relating to
transactions entered into in the ordinary course of business), (d) any
agreement, arrangement or commitment with or to a labor union, or (e) any other
contract or agreement or amendment thereto that would be required to be filed as
an exhibit to a Form 10-K filed by FirstMerit with the Commission as of the date
of this Agreement (the "FirstMerit Contracts"). Neither FirstMerit nor any
FirstMerit Subsidiary is in default under any FirstMerit Contract, which default
is reasonably likely to have, either individually or in the aggregate, a
Material Adverse Effect on FirstMerit, and there has not occurred any event that
with the lapse of time or the giving of notice or both would constitute such a
default.

         3.11. ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as set forth in the
FirstMerit Disclosure Letter or disclosed in FirstMerit Reports filed by
FirstMerit with the Commission prior to the date of this Agreement, since
December 31, 1996 to the date of this Agreement, there has not been any change
in the financial condition, results of operations or business of FirstMerit and
the FirstMerit Subsidiaries that either individually or in the aggregate has had
a Material Adverse Effect on FirstMerit.

         3.12. LITIGATION. Except as disclosed in the FirstMerit Disclosure
Letter or in FirstMerit Reports filed by FirstMerit with the Commission prior to
the date of this Agreement, there is no litigation, action, arbitration or
proceeding pending, or, to the best knowledge of FirstMerit, threatened against
or affecting FirstMerit or any FirstMerit Subsidiary which, either individually
or in the aggregate, is having, or insofar as reasonably can be foreseen, will
have, a Material Adverse Effect on FirstMerit, nor is there any judgment,
decree, injunction, rule or order of any 




                                       14
<PAGE>   17

Governmental Entity or arbitrator, outstanding against FirstMerit or any
FirstMerit Subsidiary having, or which, insofar as reasonably can be foreseen,
in the future would have, any such effect.

         3.13. COMPLIANCE WITH LAWS AND ORDERS. Except as disclosed in the
FirstMerit Disclosure Letter or in FirstMerit Reports filed by FirstMerit with
the Commission prior to the date of this Agreement, the businesses of FirstMerit
and the FirstMerit Subsidiaries are not being conducted, and have not been
conducted since December 31, 1996, in violation of any law, ordinance,
regulation, judgment, order, decree, license or permit of any Governmental
Entity, except for possible violations which individually or in the aggregate do
not, and, insofar as reasonably can be foreseen, in the future will not, have a
Material Adverse Effect on FirstMerit. Except as set forth in the FirstMerit
Disclosure Letter, no investigation or review by any Governmental Entity with
respect to FirstMerit or any of the FirstMerit Subsidiaries outside the ordinary
course of business and not generally applicable to entities engaged in the same
business is pending or, to the knowledge of FirstMerit, threatened, and no
Governmental Entity has indicated an intention to conduct the same in each case
other than those the outcome of which will not have a Material Adverse Effect on
FirstMerit.

         3.14. AGREEMENTS WITH BANK REGULATORS. As of the date of this
Agreement, except as set forth in the FirstMerit Disclosure Letter, neither
FirstMerit nor any FirstMerit Subsidiary is a party to any written agreement or
memorandum of understanding with, or a party to any commitment letter or similar
undertaking to, or is subject to any order or directive by, or is a recipient of
any extraordinary supervisory letter from, any Governmental Entity outside the
ordinary course of business and not generally applicable to entities engaged in
the same business, including, without limitation, cease and desist or other
orders of any bank regulatory authority, which restricts materially the conduct
of its business, or in any manner relates to its capital adequacy, its credit
policies or its management, nor has FirstMerit been advised by any Governmental
Entity that it is contemplating issuing, requiring or requesting (or is
considering the appropriateness of issuing, requiring or requesting) any such
order, directive, agreement, memorandum of understanding, extraordinary
supervisory letter, commitment letter or similar undertaking. Except as set
forth in the FirstMerit Disclosure Letter, there are no (i) material violations
or (ii) violations with respect to which refunds or restitutions which are
material in amount to FirstMerit and the FirstMerit Subsidiaries taken as a
whole may be required, cited in any compliance report to FirstMerit or any
FirstMerit Subsidiary as a result of an examination by any bank regulatory
authority.

         3.15. FIRSTMERIT OWNERSHIP OF STOCK. Except as disclosed in the
FirstMerit Disclosure Letter, and except pursuant to Stock Purchase Option dated
November 3, 1997 (the "CoBancorp Stock Purchase Option"), a copy of which is
attached hereto as Exhibit 3.15, neither FirstMerit nor, to the best of its
knowledge, any of its affiliates or associates (i) beneficially owns, directly
or indirectly, or (ii) are parties to any agreement, arrangement or commitment
for the purpose of acquiring, holding, voting or disposing of, in each case,
shares of CoBancorp Common Stock (other than shares of CoBancorp Common Stock
held in a fiduciary, trust, custodial or agency capacity by a bank or trust
subsidiary of FirstMerit) which in the aggregate, represent 1% or more of the
outstanding shares of CoBancorp Common Stock.




                                       15
<PAGE>   18

         3.16. FEES. Except for the fees paid and payable to Goldman, Sachs &
Co., neither FirstMerit nor any FirstMerit Subsidiary has paid or become
obligated to pay any fee or commission to any broker, finder or intermediary in
connection with the transactions contemplated by this Agreement.

         3.17. FIRSTMERIT ACTION. The Board of Directors of FirstMerit (at a
meeting duly called and held) has by the requisite vote (i) determined that the
Merger is advisable and in the best interests of FirstMerit and its
shareholders, (ii) authorized and approved this Agreement and the Stock Purchase
Option, and the transactions contemplated hereby and thereby, including the
Merger, and (iii) authorized and approved the Merger in accordance with Chapter
1704 of the Ohio Revised Code with the result that Chapter 1704 will not apply
to the consummation of the Merger and acquisition of shares of FirstMerit Common
Stock by the holders of CoBancorp Common Stock pursuant to this Agreement.

         3.18. RIGHTS AGREEMENT. No person will become an "Acquiring Person" and
no "Shares Acquisition Date" or "Distribution Date" will occur under the
Shareholder Rights Agreement, as amended and restated, dated July 18, 1996,
between FirstMerit and FMBank, as rights agent (the "FirstMerit Rights Plan"),
and no holder of rights issued under the FirstMerit Rights Plan shall have any
rights under the FirstMerit Rights Plan as a result of the approval, execution
or delivery of this Agreement or the consummation of the Merger. No amendments
have been made prior to the date of this Agreement to the FirstMerit Rights Plan
except as specifically referred to in this Section.

         3.19. ENVIRONMENTAL MATTERS. Except as set forth in the FirstMerit
Disclosure Letter, to the best of FirstMerit's knowledge: (i) neither FirstMerit
nor any of the FirstMerit Subsidiaries has been or is in violation of or liable
under any Environmental Law (as hereinafter defined), except for any such
violations or liabilities which would not reasonably be expected, individually
or in the aggregate, to have a Material Adverse Effect on FirstMerit; and (ii)
none of the Loan Portfolio Properties and Other Properties Owned (as hereinafter
defined) by FirstMerit or any of the FirstMerit Subsidiaries has been since such
properties have been owned, operated or managed by FirstMerit or any of the
FirstMerit Subsidiaries is in violation of under any Environmental Law, except
for any such violations which, individually or in the aggregate, would not
reasonably be expected to have a Material Adverse Effect on FirstMerit. Except
as set forth in the FirstMerit Disclosure Letter, there are no actions, suits,
demands, notices, claims, investigations or proceedings pending, or to the best
of FirstMerit's knowledge threatened, relating to the liability of the Loan
Portfolio Properties and Other Properties Owned by FirstMerit or the FirstMerit
Subsidiaries under any Environmental Law, including, without limitation, any
notices, demand letters or requests for information from any federal, state or
local environmental agency relating to any such liabilities under or violations
of Environmental Law.

           40. REPRESENTATIONS AND WARRANTIES OF COBANCORP

         CoBancorp hereby represents and warrants to FirstMerit that:



                                       16
<PAGE>   19

         4.1. CORPORATE ORGANIZATION. CoBancorp is a corporation duly organized,
validly existing and in good standing under the laws of the State of Ohio and is
duly qualified to do business as a foreign corporation and is in good standing
in each jurisdiction in which its ownership or lease of property or the nature
of the business conducted by it makes such qualification necessary, except for
such jurisdictions in which the failure to be so qualified would not have a
Material Adverse Effect on CoBancorp. CoBancorp is registered as a bank holding
company under the BHCA. CoBancorp has the requisite corporate power and
authority to own, lease and operate its properties and assets and to carry on
its business as it is now being conducted. CoBancorp has delivered to FirstMerit
as attachments to the CoBancorp Disclosure Letter true and complete copies of
its Articles of Incorporation, as amended, and its Code of Regulations, as
amended (the "Corporate Governance Documents") as currently in effect.

         4.2. AUTHORITY. CoBancorp has the requisite corporate power and
authority to execute and deliver this Agreement and, except for any required
approval of CoBancorp's shareholders and the approval of the applicable
Regulatory Authorities, 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 and approved by the
Board of Directors of CoBancorp and no other corporate proceedings on the part
of CoBancorp are necessary to authorize this Agreement or to consummate the
transactions so contemplated, except for approval by the shareholders of
CoBancorp as provided in Section 6.1(a). This Agreement has been duly executed
and delivered by, and constitutes a valid and binding obligation of, CoBancorp,
enforceable against CoBancorp in accordance with its terms, except as
enforceability hereof may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium and other similar laws affecting the enforcement of
creditors' rights generally and except that the availability of the equitable
remedy of specific performance or injunctive relief is subject to the discretion
of the court before which any proceedings may be brought, and except as
enforceability hereof may be limited by laws relating to the safety and
soundness of insured depository institutions as set forth in 12 U.S.C.
Section 18(b) or to the appointment of a conservator or receiver by the Federal
Deposit Insurance Corporation.

         4.3. CAPITALIZATION. The authorized capital stock of CoBancorp consists
of 5,000,000 shares of CoBancorp Common Stock and no shares of serial preferred
stock. As of the date of this Agreement, (i) 3,453,824 shares of CoBancorp
Common Stock (with no treasury shares) were validly issued and outstanding,
fully paid and nonassessable and not issued in violation of any preemptive right
of any CoBancorp shareholder. As of the date of this Agreement, there were
outstanding CoBancorp Stock Options to purchase 129,044 shares of CoBancorp
Common Stock, all of which are currently exercisable. Except as contemplated by
this Agreement, the CoBancorp Stock Purchase Option or in the CoBancorp
Disclosure Letter (which is a letter attached hereto as Exhibit 4.3, dated the
date of this Agreement, from CoBancorp to FirstMerit, such letter being
identified by FirstMerit executing a copy thereof), there are no shares of
capital stock of CoBancorp authorized, issued or outstanding and there are no
outstanding subscriptions, options, warrants, scrip, rights, calls, convertible
securities or any other similar agreements, arrangements or commitments of any
character relating to the issued or unissued capital stock or other securities
of CoBancorp obligating, or which may obligate, CoBancorp to issue, deliver or
sell, or cause to be issued, 



                                       17
<PAGE>   20

delivered or sold, additional shares of capital stock of CoBancorp or
obligating, or which may obligate, CoBancorp to grant, extend or enter into any
subscription, option, warrant, scrip, right, call, convertible security or other
similar agreement, arrangement or commitment. Except as set forth in the
CoBancorp Disclosure Letter, there are no voting trusts or other similar
agreements, arrangements, or commitments to which CoBancorp or any CoBancorp
Subsidiary (as hereinafter defined) is a party with respect to the voting of the
capital stock of CoBancorp.

         4.4. SUBSIDIARIES. The CoBancorp Disclosure Letter sets forth, as of
the date of this Agreement, the name and state of incorporation of each
subsidiary of CoBancorp (collectively, the "CoBancorp Subsidiaries") and the
authorized capital stock of each CoBancorp Subsidiary. Except as set forth in
the CoBancorp Disclosure Letter, each of the CoBancorp Subsidiaries is a bank,
savings association or a corporation, duly organized, validly existing and in
good standing under the laws of its respective jurisdiction of incorporation or
organization and is duly qualified to do business as a foreign corporation in
each jurisdiction in which its ownership or lease of property or the nature of
the business conducted by it makes such qualification necessary, except for such
jurisdictions in which the failure to be so qualified would not have a Material
Adverse Effect on CoBancorp. Each of the CoBancorp Subsidiaries has the
requisite corporate power and authority to own, lease and operate its properties
and assets and to carry on its businesses as they are now being conducted.
CoBancorp has delivered to FirstMerit as attachments to the CoBancorp Disclosure
Letter true and complete copies of the CoBancorp Subsidiaries' articles of
incorporation and code of regulations (constitution or bylaws), each as
currently in effect.

         Except as set forth in the CoBancorp Disclosure Letter, as of the date
of this Agreement, all outstanding shares of capital stock of each CoBancorp
Subsidiary are owned by CoBancorp or another CoBancorp Subsidiary and are
validly issued, fully paid and nonassessable, have not been issued in violation
of any preemptive right and are owned free and clear of all liens, claims,
charges, options, encumbrances or agreements with respect thereto. Except as set
forth in the CoBancorp Disclosure Letter, as of the date of this Agreement,
neither CoBancorp nor any CoBancorp Subsidiary owns beneficially more than 5% of
any class of equity securities or any similar interests of any corporation,
bank, business, trust, association or similar organization. There are, as of the
date of this Agreement, no outstanding subscriptions, options, warrants, scrip,
rights, calls, convertible securities or any other similar agreements,
arrangements or commitments of any character relating to the issued or unissued
capital stock or other securities of any CoBancorp Subsidiary obligating, or
which may obligate, any CoBancorp Subsidiary to issue, deliver or sell, or cause
to be issued, delivered or sold, additional shares of its capital stock or
obligating, or which may obligate, any CoBancorp Subsidiary to grant, extend or
enter into any subscription, option, warrant, scrip, right, call, convertible
security or other similar agreement, arrangement or commitment.

         4.5.     INFORMATION IN DISCLOSURE DOCUMENTS, REGISTRATION STATEMENT,
                  ETC.

         (a) None of the information with respect to CoBancorp or any CoBancorp
Subsidiary provided by CoBancorp for inclusion in the Registration Statement
will, at the time it becomes effective and at the time of the CoBancorp Meeting,
contain any untrue statement of a material fact or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they are made, not
misleading. None 


                                       18
<PAGE>   21

of the information with respect to CoBancorp or any CoBancorp Subsidiary
provided in writing by CoBancorp for inclusion in the Proxy Statement will, at
the time of the mailing of the Proxy Statement, and at the time of the CoBancorp
Meeting, contain any statement which, at the time it is made and in light of the
circumstances under which it is made, is false or misleading with respect to any
material fact, or which omits to state any material fact necessary in order to
make the statements therein not false or misleading or necessary to correct any
statement in any earlier communication with respect to the solicitation of any
proxy for the CoBancorp Meeting which has become false or misleading. The Proxy
Statement will comply as to form in all material respects with the provisions of
the Exchange Act, and the rules and regulations promulgated thereunder.

         (b) All documents that CoBancorp is responsible for filing with any
Governmental Entity will comply as to form in all material respects with
applicable law. None of the information with respect to CoBancorp or any
CoBancorp Subsidiary provided by CoBancorp for inclusion in any document to be
filed with any Governmental Entity in connection with the transactions
contemplated hereby will contain any statement of a material fact which is
untrue as of the time that such statement is made.

         4.6. CONSENT AND APPROVALS; NO VIOLATION. Except as set forth in the
CoBancorp Disclosure Letter, neither the execution and delivery of this
Agreement by CoBancorp, nor the consummation by CoBancorp of the transactions
contemplated hereby, nor compliance by CoBancorp with any of the provisions
hereof, will (a) conflict with or result in any breach of any provision of its
Corporate Governance Documents, (b) violate, conflict with, constitute a default
(or an event which, with notice or lapse of time or both, would constitute a
default) under, or result in the termination of, or accelerate the performance
required by, or result in a right of termination or acceleration of, or result
in the creation of any lien, security interest, charge or other encumbrance upon
any of the properties or assets of CoBancorp or any of the CoBancorp
Subsidiaries under, any of the terms, conditions or provisions of any note,
bond, mortgage, indenture, deed of trust, license, lease, agreement or other
instrument or obligation to which CoBancorp or any CoBancorp Subsidiary is a
party or to which they or any of their respective properties or assets may be
subject, except for such violations, conflicts, breaches, defaults,
terminations, accelerations or creations of liens or other encumbrances, that
are set forth in the CoBancorp Disclosure Letter or which, individually or in
the aggregate, will not have a Material Adverse Effect on CoBancorp, (c) violate
any judgment, ruling, order, writ, injunction, decree, statute, rule or
regulation applicable to CoBancorp or any CoBancorp Subsidiary or any of their
respective properties or assets, except for such violations which, individually
or in the aggregate, will not have a Material Adverse Effect on CoBancorp, or
(d) require any consent, approval, authorization or permit of or from, or filing
with or notification to, any Governmental Entity, except (i) pursuant to the
Exchange Act and the Securities Act, (ii) filing certificates of merger pursuant
to the OGCL, (iii) filings required under the securities or blue sky laws of the
various states, (iv) filings with, and approval by, the FRB, (v) filings with,
and approval by, the OCC, (vi) filings with, and approval by, the OTS, (vii)
filings with, and approval by the Division, (viii) filings and approvals
pursuant to any applicable State Takeover Approvals, or (ix) consents,
approvals, authorizations, permits, filings or notifications which have either
been obtained or made prior to the Closing or which, if not obtained or made,
will neither, 



                                       19
<PAGE>   22

individually or in the aggregate, have a Material Adverse Effect on CoBancorp
nor restrict CoBancorp's legal authority to execute and deliver this Agreement
and consummate the transactions contemplated hereby.

         4.7. REPORTS AND FINANCIAL STATEMENTS. Since December 31, 1993,
CoBancorp has filed all reports, registrations and statements, together with any
required amendments thereto, that it was required to file with the Commission,
including, but not limited to Forms 10-K, Forms 10-Q, Forms 8-K and proxy
statements (collectively, the "CoBancorp Reports"). CoBancorp has previously
made available or furnished, or, with respect to CoBancorp Reports filed after
the date of this Agreement, will promptly furnish, FirstMerit with true and
complete copies of each of the CoBancorp Reports. As of their respective dates
(but taking into account any amendments filed prior to the date of this
Agreement), and except as stated in the CoBancorp Disclosure Letter, the
CoBancorp Reports complied, or, with respect to CoBancorp Reports filed after
the date of this Agreement, will comply, in all material respects with all the
rules and regulations promulgated by the Commission, and did not contain, or,
with respect to CoBancorp Reports filed after the date of this Agreement, will
not contain, any 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,
in light of the circumstances under which they were made, not misleading. The
audited consolidated financial statements and unaudited interim financial
statements of CoBancorp included in the CoBancorp Reports (the "CoBancorp
Financial Statements") have been prepared in accordance with generally accepted
accounting principles applied on a consistent basis (except as may be indicated
therein or in the notes thereto) and fairly present the consolidated financial
position of CoBancorp and the CoBancorp Subsidiaries as at the dates thereof and
the consolidated results of operations and cash flows for the periods then ended
subject, in the case of the unaudited interim financial statements, to normal
year-end audit adjustments, any other adjustments described therein and the
absence of footnotes.

         4.8. TAXES. Except as set forth in the CoBancorp Disclosure Letter,
CoBancorp and each CoBancorp Subsidiary have prepared in good faith and duly and
timely filed, or caused to be duly and timely filed, all federal, state, local
and foreign income, franchise, sales, real and personal property and other tax
returns and reports required to be filed by them on or before the date of this
Agreement, except where the failure to file would not have a Material Adverse
Effect on CoBancorp. Except as set forth in the CoBancorp Disclosure Letter,
CoBancorp and each CoBancorp Subsidiary have paid, or have adequately reserved
or have made adequate accruals (in accordance with generally accepted accounting
principles) with respect to, all taxes, interest and penalties shown to be owing
on all such returns and reports. The CoBancorp Disclosure Letter sets forth, as
of the date of this Agreement, the following information with respect to
CoBancorp and each CoBancorp Subsidiary: (i) the most recent tax year through
which the Internal Revenue Service ("IRS") has completed its examination of such
corporation, (ii) whether there is an examination pending by the IRS with
respect to such corporation and, if so, the tax years involved, (iii) whether
such corporation has executed or filed with the IRS any agreement which is still
in effect extending the period for assessment and collection of any federal tax
and, if so, the tax years covered by such agreement and the expiration date of
such extension, and (iv) whether there are any existing material disputes as to
state, local or foreign taxes. Except as set forth in the CoBancorp Disclosure
Letter, there are no liens for federal, state, local or foreign taxes upon the
assets of CoBancorp or of any CoBancorp Subsidiary, except for statutory liens
for taxes and assessments not yet delinquent or the validity of 

                                       20
<PAGE>   23

which is being contested in good faith by appropriate proceedings. Except as set
forth in the CoBancorp Disclosure Letter, neither CoBancorp nor any of the
CoBancorp Subsidiaries is a party to any action or proceeding, nor is any such
action or proceeding threatened, by any Governmental Entity for the assessment
or collection of taxes which are material in amount, and no deficiency notices
or reports have been received by CoBancorp or any of the CoBancorp Subsidiaries
in respect of any material deficiencies for any tax, assessment, or government
charges. After the date of this Agreement, CoBancorp will promptly notify
FirstMerit of (i) the commencement or threat of any such action or proceeding
involving an amount of taxes material to CoBancorp and its subsidiaries taken as
a whole, and (ii) the receipt by CoBancorp or the CoBancorp Subsidiaries of any
such deficiency notices or reports in respect of any material deficiencies.

         4.9. EMPLOYEE PLANS, EMPLOYEES. All employee bonus, deferred
compensation, pension, retirement, profit sharing, stock option, stock purchase,
employee stock ownership, stock appreciation rights, savings, consulting,
severance, collective bargaining, group insurance, fringe benefit and other
employee benefit, incentive and welfare plans, policies, contracts and
arrangements and all trust agreements related thereto, now in effect and
relating to any present or former directors, officers or employees of CoBancorp
or the CoBancorp Subsidiaries, whether or not described in Section 3(3) of ERISA
("CoBancorp Employee Plans"), are identified in the CoBancorp Disclosure Letter.
CoBancorp has previously delivered or made available to FirstMerit copies of all
CoBancorp Employee Plans, in each case as in effect on the date of this
Agreement.

         All of CoBancorp Employee Plans have been maintained, operated and
administered in substantial compliance with their terms, and CoBancorp, all of
the CoBancorp Subsidiaries and all of the CoBancorp Employee Plans currently
comply, and have at all relevant times complied, in all material respects with
ERISA, the Code, and any other applicable laws. With respect to each CoBancorp
Employee Plan which is a pension plan (as defined in Section 3(2) of ERISA): (a)
except as set forth in the CoBancorp Disclosure Letter each pension plan as
amended (and any trust relating thereto) intended to be a qualified plan under
Section 401(a) of the Code either has been determined by the IRS to be so
qualified or is the subject of a pending application for such determination that
was timely filed, (b) except as set forth in the CoBancorp Disclosure Letter,
would be fully funded (calculated using the interest rate and other actuarial
assumptions mandated by the Pension Benefit Guaranty Corporation ("PBGC")) if
terminated at the Effective Time and there is no accumulated funding deficiency
(as defined in Section 302 of ERISA and Section 412 of the Code), whether or not
waived, and no waiver of the minimum funding standards of such sections has been
requested from the IRS, (c) no reportable event described in Section 4043 of
ERISA has occurred, (d) no defined benefit plan has been terminated, nor has the
PBGC instituted proceedings to terminate a defined benefit plan or to appoint a
trustee or administrator of a defined benefit plan, and no circumstances exist
that constitute grounds under Section 4042 of ERISA entitling the PBGC to
institute any such proceedings, and (e) no pension plan is a "multi-employer
plan" within the meaning of Section 3(37) of ERISA. With respect to any
qualified benefit plan which purports to be an employees stock ownership plan
(as defined in Section 4975(e)(7) of the Code) (an "ESOP Qualified Benefit
Plan"), such ESOP Qualified Benefit Plan satisfies the requirements of Section
4975(e)(7) of the Code and is in material compliance with the applicable
qualification requirements 



                                       21
<PAGE>   24

of Section 409 of the Code. The capital stock of CoBancorp acquired by the ESOP
Qualified Benefit Plan meets the definition of "employer securities" set forth
in Sections 409(l) and 4975 of the Code.

         Except as set forth in the CoBancorp Disclosure Letter, no CoBancorp
Employee Plan provides benefits, including, without limitation, death or medical
benefits (whether or not insured), with respect to current or former employees
beyond their retirement or other termination of service (other than (i)
temporary coverage mandated by applicable law, (ii) death benefits or retirement
benefits under any "employee pension plan," as that term is defined in Section
3(2) of ERISA, (iii) deferred compensation benefits accrued as liabilities on
the books of CoBancorp or any CoBancorp Subsidiary, or (iv) benefits the full
cost of which are borne by the current or former employee (or his or her
beneficiary)).

         Except as set forth in the CoBancorp Disclosure Letter, all employees
of CoBancorp and the CoBancorp Subsidiaries are "at will" and there are no
employment, consulting or like agreements, written or oral, expressed or
implied.

         4.10. MATERIAL CONTRACTS. Except as set forth in the CoBancorp
Disclosure Letter or disclosed in the CoBancorp Reports, neither CoBancorp nor
any CoBancorp Subsidiary is, as of the date of this Agreement, a party to, or is
bound by, (a) any material lease not made in the ordinary course of business of
CoBancorp, (b) any agreement, arrangement, or commitment not made in the
ordinary course of business which materially restricts the conduct of any line
of business of CoBancorp, (c) any benefit agreements providing for aggregate
payments to any person in any calendar year in excess of $100,000, (d) any
material agreement, indenture or other instrument not specifically disclosed in
the CoBancorp Financial Statements relating to the borrowing of money by
CoBancorp or the guarantee by CoBancorp of any such obligation (other than trade
payables and instruments relating to transactions entered into in the ordinary
course of business), (e) any agreement, arrangement or commitment with or to a
labor union or (f) any other contract or agreement or amendment thereto that
would be required to be filed as an exhibit to a Form 10-K filed by CoBancorp
with the Commission (the agreements and other documents referred to in clauses
(a) through (e) of this sentence, collectively, the "CoBancorp Contracts").
Except as stated in the CoBancorp Disclosure Letter, neither CoBancorp nor any
CoBancorp Subsidiary is in default under any CoBancorp Contract, which default
is reasonably likely to have, either individually or in the aggregate, a
Material Adverse Effect on CoBancorp, and there has not occurred any event that
with the lapse of time or the giving of notice or both would constitute such a
default.

         4.11. ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as set forth in the
CoBancorp Disclosure Letter or disclosed in CoBancorp Reports filed by CoBancorp
with the Commission prior to the date of this Agreement, since December 31, 1993
to the date of this Agreement, there has not been any change in the financial
condition, results of operations or business of CoBancorp and the CoBancorp
Subsidiaries that either individually or in the aggregate has had a Material
Adverse Effect on CoBancorp.



                                       22
<PAGE>   25

         4.12. LITIGATION. Except as disclosed in the CoBancorp Disclosure
Letter or in CoBancorp Reports filed by the CoBancorp with the Commission prior
to the date of this Agreement, there is no litigation, action, arbitration or
proceeding pending, or, to the best knowledge of CoBancorp, threatened against
or affecting CoBancorp or any CoBancorp Subsidiary which, either individually or
in the aggregate, is having, or insofar as reasonably can be foreseen will have,
a Material Adverse Effect on CoBancorp, nor is there any judgment, decree,
injunction, rule or order of any Governmental Entity or arbitrator, outstanding
against CoBancorp or any CoBancorp Subsidiary having, or which, insofar as
reasonably can be foreseen, in the future would have, any such effect.

         4.13. COMPLIANCE WITH LAWS AND ORDERS. Except as disclosed in the
CoBancorp Disclosure Letter or in CoBancorp Reports filed by CoBancorp with the
Commission prior to the date of this Agreement, the businesses of CoBancorp and
the CoBancorp Subsidiaries are not being conducted, and have not been conducted
since December 31, 1993, in violation of any law, ordinance, regulation,
judgment, order, decree, license or permit of any Governmental Entity
(including, without limitation, zoning ordinances, building codes, and
environmental, civil rights, and occupational health and safety laws and
regulations and, in the case of CoBancorp Subsidiaries that are savings and
loans or thrifts, all statutes, rules and regulations pertaining to the conduct
of such business), except for possible violations which individually or in the
aggregate do not, and, insofar as reasonably can be foreseen, in the future will
not, have a Material Adverse Effect on CoBancorp. Except as set forth in the
CoBancorp Disclosure Letter, no investigation or review by any Governmental
Entity with respect to CoBancorp or any of the CoBancorp Subsidiaries outside
the ordinary course of business and not generally applicable to entities engaged
in the same business is pending or, to the knowledge of CoBancorp, threatened,
nor has any Governmental Entity indicated an intention to conduct the same in
each case other than those the outcome of which will not have a Material Adverse
Effect on CoBancorp.

         4.14. AGREEMENTS WITH REGULATORS. As of the date of this Agreement,
except as disclosed in the CoBancorp Disclosure Letter, neither CoBancorp nor
any CoBancorp Subsidiary is a party to any written agreement or memorandum of
understanding with, or a party to any commitment letter or similar undertaking
to, or is subject to any order or directive by, or is a recipient of any
extraordinary supervisory letter from, any Governmental Entity outside the
ordinary course of business and not generally applicable to entities engaged in
the same business, including, without limitation, cease and desist orders of any
regulatory authority, which restricts materially the conduct of its business, or
in any manner relates to its capital adequacy, its credit policies or its
management, nor has CoBancorp been advised by any Governmental Entity that it is
contemplating issuing, requiring, or requesting (or is considering the
appropriateness of issuing, requiring or requesting) any such order, directive,
agreement, memorandum of understanding, extraordinary supervisory letter,
commitment letter or similar undertaking. Except as set forth in CoBancorp
Disclosure Letter, there are no (i) material violations, or (ii) violations with
respect to which refunds or restitutions which are material in amount to
CoBancorp and the CoBancorp Subsidiaries taken as a whole may be required, cited
in any compliance report to CoBancorp or any CoBancorp Subsidiary as a result of
an examination by any regulatory authority.

         4.15. COBANCORP OWNERSHIP OF STOCK. Except as disclosed in CoBancorp
Disclosure Letter, as of the date of this Agreement, neither CoBancorp nor, to
the best of its knowledge, any of 


                                       23
<PAGE>   26

its affiliates or associates (i) beneficially owns directly or indirectly, or
(ii) are parties to any agreement, arrangement or commitment for the purpose of
acquiring, holding, voting or disposing of, in each case, shares of FirstMerit
Common Stock (other than shares of FirstMerit Common Stock held in a fiduciary,
trust, custodial or agency capacity by a subsidiary of CoBancorp) which in the
aggregate, represent 1% or more of the outstanding shares of FirstMerit Common
Stock.

         4.16. FEES. Except for fees paid and payable to Hovde Financial, Inc.
("Hovde"), neither CoBancorp nor any CoBancorp Subsidiary has paid or become
obligated to pay any fee or commission to any broker, finder or intermediary in
connection with the transactions contemplated by this Agreement.

         4.17. COBANCORP ACTION. The Board of Directors of CoBancorp (at a
meeting duly called and held) has by the requisite vote (i) determined that the
Merger is advisable and in the best interests of CoBancorp and its shareholders,
(ii) authorized and approved this Agreement, the CoBancorp Stock Purchase Option
and the transactions contemplated hereby and thereby, including the Merger,
(iii) directed that the Merger be submitted for consideration by CoBancorp's
shareholders entitled to vote thereon at the CoBancorp Meeting, and (iv)
authorized and approved the CoBancorp Stock Purchase Option and the Merger in
accordance with Chapter 1704 of the Ohio Revised Code with the result that
Chapter 1704 will not apply to the consummation of the Merger and the
acquisition by FirstMerit of shares of CoBancorp Common Stock pursuant to the
Merger, the CoBancorp Stock Purchase Option or any of the transactions
contemplated by this Agreement or the CoBancorp Stock Purchase Option. Hovde,
CoBancorp's financial advisor, has provided the Board of Directors of CoBancorp
with its opinion that, as of the date of such duly called meeting of the Board,
the Merger Consideration is fair, from a financial point of view, to the
shareholders of CoBancorp.

         4.18. VOTE REQUIRED. The affirmative vote of the holders of a majority
of the outstanding shares of CoBancorp Common Stock entitled to vote thereon is
the only vote of the holders of any class or series of CoBancorp capital stock
necessary to approve this Agreement and the transactions contemplated hereby,
unless FirstMerit has exercised its rights to acquire the CoBancorp Common Stock
under the CoBancorp Stock Purchase Option.

         4.19. CONDUCT OF COBANCORP TO DATE. Except as disclosed in CoBancorp
Disclosure Letter and in CoBancorp Reports filed with the Commission prior to
the date of this Agreement, from and after December 31, 1996, to the date of
this Agreement: (a) CoBancorp and the CoBancorp Subsidiaries have carried on
their respective businesses in the ordinary and usual course consistent with
their current practices, (b) CoBancorp has not issued or sold any of its capital
stock (except shares of CoBancorp Common Stock issued upon exercise of employee
stock options outstanding on or before December 31, 1996), or any corporate debt
securities which would be classified as long-term debt on the balance sheets of
CoBancorp, (c) CoBancorp has not granted any option for the purchase of its
capital stock (other than pursuant to the CoBancorp Stock Purchase Option),
effected any stock split, or otherwise changed its authorized capitalization,
(d) CoBancorp has not declared, set aside, or paid any dividend or other
distribution in respect of its capital stock, or, 


                                       24
<PAGE>   27

directly or indirectly, redeemed or otherwise acquired any of its capital stock,
except regular quarterly cash dividends (based upon historic precedent), (e)
CoBancorp has neither incurred nor prepaid any corporate debt securities or
instruments which are or would be classified as long-term debt on the balance
sheet of CoBancorp, (f) neither CoBancorp nor any CoBancorp Subsidiary has sold,
assigned, transferred, or otherwise disposed of to a third party (i) equity
securities in or issued by any CoBancorp Subsidiary, (ii) branch offices of any
CoBancorp Subsidiary, (iii) assets constituting any other line of business, or
(iv) any of its other material properties or assets other than for a fair
consideration in the ordinary course of business, (g) neither CoBancorp nor any
CoBancorp Subsidiary has purchased or otherwise acquired from a third party
equity securities in or issued by such third party other than in the ordinary
course of business, branch offices of such third party, assets constituting any
other line of business, or any other material properties or assets outside the
ordinary course of its business, (h) neither CoBancorp nor any CoBancorp
Subsidiary has: increased the rate of compensation of, or paid any bonus to, any
of its directors, officers, or other employees, except under existing plans and
policies, entered into any new, or amended or supplemented any existing, or
secured, collateralized, or funded any, employment, management, consulting,
deferred compensation, severance, or other similar contract, entered into,
terminated, or substantially modified any CoBancorp Employee Plan in respect of
any of its present or former directors, officers, or other employees, or agreed
to do any of the foregoing, (i) neither CoBancorp nor any CoBancorp Subsidiary,
has entered into any material transaction, contract, lease, agreement or
commitment requiring the approval of the Board of Directors of CoBancorp or any
CoBancorp Subsidiary, or amended, modified or terminated any contract, lease or
other agreement to which it is a party in a manner requiring the approval of the
Board of Directors of CoBancorp or any CoBancorp Subsidiary, and (j) no
CoBancorp Subsidiary has entered into any material transaction, contract, lease,
agreement or commitment outside the ordinary course of business requiring the
approval of the Board of Directors of such Subsidiary or amended, modified or
terminated outside the ordinary course of business any material contract, lease
or other agreement to which it is a party in a manner requiring the approval of
the Board of Directors of such Subsidiary.

         4.20. ENVIRONMENTAL MATTERS. For purposes of this Agreement, the
following terms shall have the indicated meanings:

                  "Environmental Law" means any federal, state or local law,
         statute, ordinance, rule, regulation, code, license, permit,
         authorization, approval, consent, order, judgment, decree, injunction
         or agreement with any Governmental Entity relating to (i) the
         protection, preservation or restoration of the environment (including,
         without limitation, air, water vapor, surface water, ground water,
         drinking water supply, surface soil, subsurface soil, plant and animal
         life or any other natural resource), and/or (ii) the use, storage,
         recycling, treatment, generation, transportation, processing, handling,
         labeling, production, release or disposal of Hazardous Substances. The
         term Environmental Law includes, without limitation; the Comprehensive
         Environmental Response, Compensation and Liability Act, as amended, 42
         U.S.C. Section 9601, et seq.; the Resource Conservation and Recovery
         Act, as amended, 42 U.S.C. Section 6901, et seq.; the Clean Air Act, as
         amended, 42 U.S.C. Section 7401, et seq.; 


                                       25
<PAGE>   28

         the Federal Water Pollution Control Act, as amended, 33 U.S.C. Section
         1251 et seq.; the Toxic Substances Control Act, as amended, 125 U.S.C.
         Section 9601, et seq.; the Emergency Planning and Community Right to
         Know Act, 42 U.S.C. Section 11001, et seq.; the Safe Drinking Water
         Act, 42 U.S.C. Section 300f, et seq.; all comparable state and local
         laws; and any common law (including without limitation common law that
         may impose strict liability) that may impose liability or obligations
         for injuries or damages due to, or threatened as a result of, the
         presence of or exposure to any Hazardous Substance.

                  "Hazardous Substance" means any substance presently listed,
         defined, designated or classified as hazardous, toxic, radioactive or
         dangerous, or otherwise regulated, under any Environmental Law, whether
         by type or by quantity, including any material containing any such
         substance as a component. Hazardous Substances include, without
         limitation, petroleum or any derivative or by-product thereof,
         asbestos, radioactive material, and polychlorinated biphenyls.

                  "Loan Portfolio Properties and Other Properties Owned" means
         those properties owned, operated or managed (including those held in
         trust) by CoBancorp, as the case may be, or any of their subsidiaries.

Except as set forth in CoBancorp Disclosure Letter, to the best of CoBancorp's
knowledge: (i) neither CoBancorp nor any of the CoBancorp Subsidiaries has been
or is in violation of or liable under any Environmental Law, except for any such
violations or liabilities which would not reasonably be expected, individually
or in the aggregate, to have a Material Adverse Effect on CoBancorp; and (ii)
none of the Loan Portfolio Properties and Other Properties Owned by CoBancorp or
any of the CoBancorp Subsidiaries has been since such properties have been
owned, operated or managed by CoBancorp or any of the CoBancorp Subsidiaries, is
in violation of any Environmental Law, except for any such violations which,
individually or in the aggregate, would not reasonably be expected to have a
Material Adverse Effect on CoBancorp. Except as set forth in CoBancorp
Disclosure Letter, there are no actions, suits, demands, notices, claims,
investigations or proceedings pending, or to the best of CoBancorp's knowledge
threatened, relating to the liability of the Loan Portfolio Properties and Other
Properties Owned by CoBancorp or the CoBancorp Subsidiaries under any
Environmental Law, including, without limitation, any notices, demand letters or
requests for information from any federal, state or local environmental agency
relating to any such liabilities under or violations of Environmental Law.

                                  5. COVENANTS

         5.1. ACQUISITION PROPOSALS AND NEGOTIATIONS. Each of CoBancorp and the
CoBancorp Subsidiaries shall not, directly or indirectly, and shall instruct and
otherwise use its diligent efforts to cause their respective officers,
directors, employees, agents and advisors not to, directly or indirectly,
solicit or initiate any proposals or offers from any person, or discuss or
negotiate with any such person, relating to any acquisition or purchase of all
or a material amount of the assets of, or any equity securities of, or any
merger, consolidation or business combination with, CoBancorp or 


                                       26
<PAGE>   29

any of the CoBancorp Subsidiaries (such transactions are referred to herein as
"Acquisition Transactions"), provided, however, that nothing contained in this
Section shall prohibit:

                  (i) CoBancorp or any CoBancorp Subsidiary, as the case may be,
from furnishing information to, or entering into discussions or negotiations
with, any person or entity that makes an unsolicited proposal of an Acquisition
Transaction if and to the extent that,

                           (a) the Board of Directors of CoBancorp, after 
consultation with and based upon the written opinion of Silver, Freedman & Taff,
L.L.P. determines in good faith that such action is required for the directors
of CoBancorp to fulfill their fiduciary duties and obligations to the CoBancorp
shareholders and other constituencies under Ohio law, taking into consideration
the sale process engaged in connection with the transactions contemplated
hereby, and

                           (b) prior to furnishing such information to, or 
entering into discussions or negotiations with, such person or entity, CoBancorp
provides immediate written notice to FirstMerit at least two business days prior
to furnishing information to, or entering into discussions or negotiations with,
such a person or entity, or

                  (ii) the Board of Directors of CoBancorp from failing to make,
withdrawing or modifying its recommendation referred to in Section 5.14
following receipt of a proposal for an Acquisition Transaction if the Board of
Directors of CoBancorp, after consultation with and based upon the written
opinion of Silver, Freedman & Taff, L.L.P. determines in good faith that such
action is required for the directors of CoBancorp to fulfill their fiduciary
duties and obligations to the CoBancorp shareholders and other constituencies
under Ohio law, taking into consideration the sale process engaged in connection
with the transactions contemplated hereby.

         In the event CoBancorp or any officer, director or representative
thereof receives any contact, either oral or written, from a third party or its
representative regarding an Acquisition Transaction or any matter directly or
indirectly related thereto after the date of this Agreement, CoBancorp shall
immediately notify FirstMerit of such contact, and provide such information
requested by FirstMerit, including but not limited to the name of the party or
parties, and all details related thereto. CoBancorp shall have a continuing
obligation to provide information to FirstMerit regarding any additional or
continuing contacts. Any writings received by CoBancorp or any officer, director
or representative thereof, shall be immediately provided to FirstMerit,
regardless of such writing being marked confidential or otherwise.

         In the event CoBancorp receives an opinion from Silver, Freedman &
Taff, L.L.P. pursuant to this Section 5.1, CoBancorp shall immediately provide a
copy of such opinion to FirstMerit.

         5.2. INTERIM OPERATIONS OF COBANCORP. During the period from the date
of this Agreement to the Effective Time, except as specifically contemplated by
this Agreement, as required by law, as set forth in CoBancorp Disclosure Letter,
or as otherwise approved in writing by FirstMerit (which shall not be
unreasonably withheld):



                                       27
<PAGE>   30

                  5.2.1. CONDUCT OF BUSINESS. CoBancorp shall, and shall cause
each of the CoBancorp Subsidiaries to, conduct their respective businesses only
in, and not take any action except in the ordinary course of business
substantially consistent with current practices (which practices include any
workout arrangements for troubled loans and real estate development assets).
CoBancorp shall use all diligent efforts to (i) maintain and preserve intact the
business organization of CoBancorp and each of the CoBancorp Subsidiaries, keep
available the services of its and their present officers and employees, and keep
the branch operations fully staffed with competent employees, (ii) preserve the
goodwill of those having business relationships with CoBancorp or the CoBancorp
Subsidiaries, (iii) maintain and keep its properties in as good repair and
condition as at present, except for depreciation due to ordinary wear and tear,
(iv) attempt to resolve such loans which FirstMerit has identified in writing to
CoBancorp as "troubled," in a workout arrangement which conditions and terms
shall be satisfactory to CoBancorp and FirstMerit, (v) keep in full force and
effect insurance and bonds comparable in amount and scope of coverage to that
now maintained by it, provided however, in the event that any such insurance
(including, without limitation, directors' and officers' liability insurance) is
canceled or not renewable at its expiration at current or standard rates,
CoBancorp shall consult with FirstMerit in order to determine whether to
exercise its right to extend the discovery period and in evaluating available
alternatives to replace the current insurance, (vi) perform in all material
respects all obligations required to be performed by each of CoBancorp and each
of the CoBancorp Subsidiaries under all material contracts, leases and documents
relating to or affecting its assets, properties, and business, and (vii) comply
with and perform in all material respects all obligations and duties imposed
upon it by all federal, state, municipal, and local laws, and all rules,
regulations and orders imposed by federal, state, municipal or local
governmental agencies.

                  5.2.2. NEGATIVE COVENANTS. CoBancorp shall not and shall not
permit any of the CoBancorp Subsidiaries to make any change or amendment to, or
to repeal, their respective articles of incorporation or codes of regulations
(or comparable governing instruments). Neither CoBancorp nor any CoBancorp
Subsidiary shall after the date of this Agreement enter into any loan or credit
commitment (including standby letters of credit) to, or invest (as a venture
capital or similar investment) or agree to invest (as a venture capital or
similar investment) in, any person or entity if such loan, commitment or
investment, would exceed $375,000 as a residential loan or investment, or
$750,000 as a commercial loan, without first consulting with FirstMerit;
provided, however, that nothing in this paragraph shall prohibit CoBancorp or
any CoBancorp Subsidiary from honoring any contractual obligation in existence
on the date of this Agreement. Neither CoBancorp nor any CoBancorp Subsidiary
shall after the date of this Agreement enter into any participatory agreements,
loans, commitments or investments involving collateral outside of Ohio, without
first consulting with FirstMerit, except that the following are excluded from
this restriction: (i) Small Business Association loans, (ii) agency rated asset
backed securities, and (iii) government obligations of the United States of
America, or a state or municipality within the United States of America.

                  Neither CoBancorp nor any CoBancorp Subsidiary shall sell,
assign, transfer or otherwise dispose of to a third party, (i) branch offices of
any CoBancorp Subsidiary, or (ii) any of 


                                       28
<PAGE>   31

its material properties or assets. Neither CoBancorp nor any CoBancorp
Subsidiary shall purchase or otherwise acquire from a third party, branch
offices of such third party, assets constituting any other line of business, or
any other material properties or assets outside the ordinary course of its
business. Neither CoBancorp nor any CoBancorp Subsidiary shall enter into any
transaction, contract, lease, agreement or commitment (or any amendment to any
transaction, contract, lease, agreement or commitment) outside of the ordinary
course of business which is material to CoBancorp and the CoBancorp Subsidiaries
taken as a whole.

                  5.2.3. CAPITAL STOCK. CoBancorp shall not, and shall not
permit any of the CoBancorp Subsidiaries to, issue or sell any shares of capital
stock or any other securities of any of them (other than pursuant to CoBancorp
Stock Options outstanding on the date of this Agreement, the CoBancorp Inc.
Dividend Reinvestment Plan ("DRIP") or the exercise by FirstMerit of its rights
under the CoBancorp Stock Purchase Option) or issue any securities convertible
into or exchangeable for, or options, warrants to purchase, scrip, rights to
subscribe for, calls or commitments of any character whatsoever relating to, or
enter into any contract, commitment or arrangement with respect to the issuance
of, any shares of capital stock or any other securities of any of them or enter
into any arrangement, contract or commitment with respect to the purchase or
voting of shares of their capital stock, or adjust, split, combine or reclassify
any of their capital stock or other securities or make any other changes in
their capital structures. Neither CoBancorp nor any CoBancorp Subsidiary shall
acquire beneficial ownership of any class of equity securities or any similar
interests of any corporation, bank, business, trust, association or similar
organization.

                  5.2.4. DIVIDENDS. CoBancorp shall not and shall not permit any
of the CoBancorp Subsidiaries to declare, set aside, pay or make any dividend or
other distribution or payment (whether in cash, stock or property) with respect
to, or purchase or redeem, any shares of the capital stock of any of them other
than (a) CoBancorp's regular quarterly cash dividends in the amount (subject to
the next paragraph) of $.22 per share (to the extent legally permitted), and (b)
dividends paid (to the extent legally permitted) by any CoBancorp Subsidiary to
another CoBancorp Subsidiary or CoBancorp with respect to such CoBancorp
Subsidiary's capital stock. From the date of this Agreement to the earlier of
the Effective Time or the termination of this Agreement, CoBancorp shall not,
without the prior written consent of FirstMerit, make any changes in its
practice of setting dividend record or dividend payment dates.

                  The parties agree to consult with respect to the last
quarterly dividend of CoBancorp payable prior to the Effective Time with the
object of assuring that the shareholders of CoBancorp receive an equitable
dividend distribution, taking into consideration the record and payment dates of
the last CoBancorp dividend distribution and the first FirstMerit dividend
distribution following the Merger. It is the intent of the parties that in the
event that the Effective Date will occur shortly after the record date for the
FirstMerit dividend, that the last CoBancorp dividend to be paid prior to such
time, will be grossed-up on an equitable basis so that the CoBancorp
shareholders receive the economic benefit of such dividend.

                  5.2.5.  EMPLOYEE PLANS, COMPENSATION AND BONUSES; ESOP.

                                       29
<PAGE>   32

                  (a) Except as is necessary to comply with the Code or as
contemplated in this Agreement, CoBancorp shall not, and shall not permit any of
CoBancorp Subsidiaries to: adopt or amend any bonus, profit sharing,
compensation, severance, termination, stock option, pension, retirement,
deferred compensation, employment or other employee benefit agreements, trusts,
plans, funds or other arrangements for the benefit or welfare of any present or
former director, officer or employee of CoBancorp or any CoBancorp Subsidiary;
increase the compensation or fringe benefits of any present or former director,
officer or employee, including the Senior Officers (as hereinafter defined); pay
any bonus, compensation or benefit not required by any existing plan or
arrangement (including, without limitation, the granting of stock options or
stock rights); take any action or grant any benefit not required under the terms
of any existing agreements, trusts, plans, funds or other such arrangements; or
enter into any contract, agreement, commitment or arrangement to do any of the
foregoing.

                  Notwithstanding the restrictions contained in this Section,
CoBancorp or the CoBancorp Subsidiaries may grant individual annual increases to
the non-Senior Officer employees in accordance with past practices up to a total
of 4% of the total annual compensation of all employees, excluding from such
total the aggregate of the compensation for the employees of CoBancorp and of
the CoBancorp Subsidiaries who are parties to an Employment Agreement (as
defined below) (the "Senior Officers").

                  John S. Kreighbaum will be entitled to purchase at the
Effective Time, the life insurance policy held by CoBancorp on his life, in
consideration for the payment of the then current cash surrender value of such
insurance.

                    CoBancorp may grant individual annual increases to the
Senior Officer employees in accordance with past practices up to an aggregate
amount of $50,000; and may pay bonuses to the eight executive employees,
including Senior Officers, but only to the extent the aggregate of such bonuses
does not exceed $200,000.

                  (b) CoBancorp represents there is no existing loan under the
CoBancorp Inc. Employee Stock Ownership Plan ("ESOP"). CoBancorp shall develop a
written description and timetable which shall be provided to and approved by
FirstMerit and its counsel, setting forth all actions necessary to: (i)
terminate the ESOP; and (ii) submit the ESOP to the IRS for a determination
letter that the ESOP, as terminated, continues to be a qualified retirement plan
and employee stock ownership plan under Sections 401(a) and 4975(e)(7) of the
Code.

                  Upon development and approval by FirstMerit of said written
description and timetable, CoBancorp shall take such actions as described
therein as are approved by FirstMerit. Distribution of the shares and any other
assets of the ESOP shall (i) not occur until after the receipt of the foregoing
IRS determination letter and (ii) occur prior to the Effective Time only with
the express written consent of FirstMerit, which shall not be unreasonably
withheld. The manner of distribution and the rights of participants to roll-over
said distributions shall be in accordance with the ESOP terms, and the laws and
regulations dealing therewith.



                                       30
<PAGE>   33

                  In connection with the development of the written description
and timetables referred to above and resolution of the ESOP, the parties intend
that, to the extent not prohibited by applicable law, the ESOP shall be
maintained through the date of its final termination for the exclusive benefit
of individuals who had become ESOP participants on or before the Effective Time.

                  The parties further agree that counsel selected by CoBancorp
shall be responsible, before and after the Effective Time, both for securing a
determination letter from the IRS that the CoBancorp ESOP, is tax-qualified for
periods through its termination date and a determination letter or other
acceptable IRS approval effectuating the purposes of this paragraph, all subject
to the prior review and approval (which approval will not be unreasonably
withheld) of FirstMerit and its counsel of the filings with the IRS and notice
and opportunity to comment by FirstMerit with respect to any other actions;
provided that after the Effective Time FirstMerit may remove such counsel if
such counsel fails to carry out the directions of the parties in interest.

                  CoBancorp may at any time prior to the Effective Time make
amendments to the ESOP to assure that all ESOP benefits shall be fully vested in
the ESOP participants.

                  5.2.6. CONFORMING ACCOUNTING AND RESERVE POLICIES; 
RESTRUCTURING EXPENSES.

                  (a) Notwithstanding that CoBancorp believes that it has
established all reserves and taken all provisions for possible loan losses
required by generally accepted accounting principles and applicable laws, rules
and regulations, CoBancorp recognizes that FirstMerit has adopted different
loan, accrual and reserve policies (including loan classifications and levels of
reserves for possible loan losses), subject to applicable laws, regulations, and
the requirements of Governmental Entities and generally accepted accounting
principles. From and after the date of this Agreement to the Effective Time,
CoBancorp and FirstMerit shall consult and cooperate with each other with
respect to conforming, as specified in a notice from FirstMerit to CoBancorp,
based upon such consultation, CoBancorp's loan, accrual and reserve policies to
those policies of FirstMerit.

                  (b) In addition, from and after the date of this Agreement to
the Effective Time, CoBancorp and FirstMerit shall consult and cooperate with
each other with respect to determining, as specified in a notice from FirstMerit
to CoBancorp, based upon such consultation, appropriate accruals, reserves and
charges to establish and take in respect of excess facilities and equipment
capacity, restructuring costs, severance costs, litigation matters, write-off or
write-down of various assets and other appropriate accounting adjustments taking
into account the Surviving Corporation's business plan following the Merger.

                  (c) CoBancorp and FirstMerit shall consult and cooperate with
each other with respect to determining, as specified in a notice from FirstMerit
to CoBancorp, based upon such consultation, the amount and the timing for
recognizing for financial accounting purposes the expenses of the Merger and the
restructuring charges related to or to be incurred in connection with the
Merger.

                  (d) At the request of FirstMerit, and in an amount and on a
basis satisfactory to CoBancorp, CoBancorp shall promptly establish and take
such reserves and accruals as FirstMerit 


                                       31
<PAGE>   34

shall request to conform, on a mutually satisfactory basis, CoBancorp's loan,
accrual and reserve policies to FirstMerit's policies, shall establish and take
such accruals, reserves and charges in order to implement such policies in
respect of excess facilities and equipment capacity, severance costs, litigation
matters, write-off or write-down of various assets and other appropriate
accounting adjustments, and to recognize for financial accounting purposes such
expenses of the Merger and restructuring charges related to or to be incurred in
connection with the Merger; provided, however, that it is the objective of
FirstMerit and CoBancorp that such reserves, accruals and charges be taken on or
before the Effective Time, but in no event later than immediately prior to the
Closing; and provided, further, that CoBancorp shall not be obligated to take
any such action pursuant to this Section 5.2.6 unless and until (i) FirstMerit
specifies its request in a writing delivered to CoBancorp, (ii) all conditions
to the obligations of CoBancorp and FirstMerit to consummate the Merger set
forth in Sections 6.1 through 6.3 have been waived or satisfied by the
appropriate party, and (iii) such reserves, accruals and charges conform with
generally accepted accounting principles, applicable laws, regulations, and the
requirements of Governmental Entities.

         5.3. INTERIM OPERATIONS OF FIRSTMERIT. During the period from the date
of this Agreement to the Effective Time, except as specifically contemplated by
this Agreement, as required by law, or as otherwise approved in writing by
CoBancorp (which shall not be unreasonably withheld) FirstMerit shall, and shall
cause each of the FirstMerit Subsidiaries to, conduct their respective
businesses in such a manner so as not to materially interfere with the ability
to consummate the Merger, delay the Effective Time or have a Material Adverse
Effect upon the transactions contemplated by the Agreement.

         5.4.     EMPLOYMENT MATTERS.

         (a) As of the Effective Time, CoBancorp will pay the financial
obligations of CoBancorp and the CoBancorp Subsidiaries, as applicable, with
regard to the employment and severance agreements with John S. Kreighbaum,
Timothy W. Esson and James R. Byden, as amended on or before the Effective Time,
as summarized and listed on Exhibit 5.4(a) ("Employment Agreements" or
"Employment Agreement"), and FirstMerit will assume and pay, to the extent such
obligations can be assumed or benefits thereunder provided as a matter of law,
but conditional upon receipt of a standard release of FirstMerit regarding
matters related to employment and termination of employment. FirstMerit
acknowledges that the consummation of the Merger will constitute a change in
status for the Senior Officers entitling each of them to terminate his
employment for good reason under his Employment Agreement. The parties listed
herein will not be provided any separation benefits under Section 5.4(b) or (c).

         (b) FirstMerit agrees to pay as separation monies to employees of
CoBancorp listed on Exhibit 5.4(b), and in the amounts listed thereon. An amount
will not be paid if the employee voluntarily terminates his employment without
good reason prior to the expiration of six months after the Effective Time. Any
payment due hereunder is conditioned upon receipt of a standard release of
FirstMerit regarding matters related to employment and termination of
employment. The parties listed herein will not be provided any separation
benefits under Section 5.4.

                                       32
<PAGE>   35

         (c) FirstMerit agrees to pay as separation monies to employees of
CoBancorp and the CoBancorp Subsidiaries, other than the persons with Employment
Agreements or covered in Section 5.4(a) or (b), in consideration for a standard
release of FirstMerit regarding matters related to employment and termination of
employment, who either at Closing do not become employees of FirstMerit or its
Subsidiaries or to persons who become employees of FirstMerit or its
Subsidiaries but whose employment is terminated during the 180-day period after
the Effective Time (except if such termination is for cause). The separation
monies will be calculated as indicated on Exhibit 5.4(c). Such employees will
also be entitled to any other benefits, if any, required by law.

         FirstMerit is not required to hire any employees of CoBancorp or the
CoBancorp Subsidiaries, but may if it so desires. All persons employed by
FirstMerit and its Subsidiaries as of the Effective Time will remain "at will"
employees, meaning that their employment can be terminated for any or no reason.
Notwithstanding anything contained herein to the contrary, no third party shall
have a right to enforce the provisions of this Section 5.4(b) or assert any
claim hereunder.

         (d) Following the Effective Time, the employee benefit programs to be
available and applicable to the persons who were employees of CoBancorp and the
CoBancorp Subsidiaries, and who become employees of FirstMerit and/or its
subsidiaries, are as follows:

                  (i) Defined Benefit Retirement and Pension Plans. At such time
on or after the Effective Time as FirstMerit shall deem appropriate, FirstMerit
will either (a) cause the merger of the CoBancorp pension plan into the
FirstMerit defined benefit plan, in which case (i) each CoBancorp employee shall
be credited with the service for eligibility and vesting purposes (but not for
benefit accrual purposes) with which he was credited under the CoBancorp pension
plan as of the date of such merger, (ii) each participant in the CoBancorp
pension plan shall be entitled to his benefit accrued under the CoBancorp plan
as of the date of such merger, but only to the extent such participant is
otherwise eligible therefor under the terms of the FirstMerit defined benefit
plan, and (iii) each CoBancorp employee who satisfies the age and service
eligibility requirements of the FirstMerit defined benefit plan (including the
past service credit referred to in (i) above) shall be eligible to participate
in the FirstMerit defined benefit plan and accrue benefits thereunder on and
after the date of such merger in accordance with the provisions thereof; or (b)
terminate the CoBancorp pension plan and provide benefits in accordance with the
terms thereof, and extend the FirstMerit defined benefit plan to CoBancorp
employees as of the effective date of the CoBancorp pension plan termination, in
which case such CoBancorp employees shall be credited with service for
eligibility and vesting purposes (but not for benefit accrual purposes) under
the FirstMerit defined benefit plan for periods of their CoBancorp employment.

         CoBancorp may at any time prior to the Effective Time make amendments
to the CoBancorp pension plan to assure that all accrued pension plan benefits
shall be fully vested in the pension plan participants.

                                       33
<PAGE>   36

                  (ii) Savings Plans. CoBancorp does not have in effect any
savings or similar type plan for its employees. FirstMerit maintains the
FirstMerit Corporation and Subsidiaries Employees' Salary Savings Retirement
Plan ("FirstMerit 401K Plan"). At the Effective Time, FirstMerit will credit the
CoBancorp employees who become employees of FirstMerit or any of its current
Subsidiaries, for purposes of the FirstMerit 401K Plan, with all service with
CoBancorp or any of the CoBancorp Subsidiaries for purposes of determining their
eligibility to participate in such plan and the vested portion of their
respective accrued benefits under such plan.

                  (iii) Health Care Plans. At such time on or after the
Effective Time as FirstMerit shall deem appropriate, FirstMerit and its
Subsidiaries will provide CoBancorp and CoBancorp Subsidiaries employees hired
by FirstMerit with such coverage under the FirstMerit health care plan as they
then provide their employees, with all service with CoBancorp or any of the
CoBancorp Subsidiaries credited for purposes of determining such employee's
eligibility to participate in such plan and without any "prior existing
condition" exclusion. The CoBancorp health care plans will be continued until
the employees so hired can participate in the FirstMerit health care plans.

                  No benefits currently provided CoBancorp or the CoBancorp
Subsidiaries employees, which exceed those provided by FirstMerit and its
subsidiaries, will be grandfathered or provided, except if required by law.
Other than otherwise expressly stated herein, FirstMerit shall not assume any
other health care benefit plans or benefits. FirstMerit, where such right
currently exists, retains the existing rights to amend or terminate any such
plan which have been reserved by the plan sponsor in the plan document or
otherwise.

                  (iv) SERP. CoBancorp has adopted and maintains Executive
Supplemental Income Agreements ("SERPs") for a limited number of employees. The
SERPs provide for (a) post retirement benefits to participants currently in
retirement status, (b) pre-retirement death benefits for active employee
participants and (c) post-termination benefits for active employee participants.
As of September 30, 1997, CoBancorp ceased accruing additional financial
obligations under the SERPs except for the actuarially calculated interest
component relating to post-retirement benefits to those participants currently
in pay status. Pending the Effective Time, CoBancorp shall utilize its best
efforts to secure agreements from those participants currently receiving
post-retirement benefits to accept a lump sum payment of the present value of
their post-retirement benefits (in amounts not in excess of the accrued
financial reporting obligation relating to such benefits on the books and
records of CoBancorp) in full satisfaction of such benefits. CoBancorp will
consult with FirstMerit and its employee benefit consultant relating to the
allocation of accrued post-termination benefits to active employee participants
in amounts that have been previously recorded as liabilities of CoBancorp for
financial reporting purposes. Consistent with the foregoing, CoBancorp will use
its diligent efforts to determine the appropriate manner in which to calculate
the accrued liabilities and benefits under the SERPs, and shall consult with
FirstMerit prior to taking any action which may increase the liabilities under
the SERPs above amounts recorded as liabilities for financial reporting
purposes. The amount of the accrued liabilities on the books and records of
CoBancorp with respect to posttermination benefits for active employee
participants shall be paid on or before the Effective Time to such participants
in exchange for a release from each of them discharging CoBancorp, its



                                       34
<PAGE>   37

Subsidiaries and respective successors in interest from any and all obligations
under their respective SERPs, including but not limited to, any obligation on
the part of CoBancorp, its Subsidiaries or successors in interest to continue to
maintain pre-retirement death benefits. In addition to the foregoing, CoBancorp
or its applicable Subsidiaries shall take all appropriate action, to the extent
legally permissible, to terminate all the SERPs as of the Effective Time in a
manner that does not diminish vested benefits of participants thereunder.

                  (v) Directors Plan. CoBancorp has adopted and maintains the
Directors Deferred Income Plan ("Directors Plan") for its directors. CoBancorp
agrees that as of the date of this Agreement it will not amend or make any
changes to the terms or conditions of such Directors Plan. As of the Effective
Time, accruals under the Directors Plan shall cease other than earnings on
account balances, participants shall be vested in their accrued benefits as of
such date and FirstMerit agrees to assume the liabilities under the Directors
Plan as of such date.

                  (vi) Other Benefit Plans. At such time on or after the
Effective Time as FirstMerit shall deem appropriate, FirstMerit and its
Subsidiaries will provide former CoBancorp employees with such coverage under
the FirstMerit benefit plans and programs as are generally provided to all
employees of FirstMerit and its Subsidiaries. All service with CoBancorp or any
of the CoBancorp Subsidiaries shall be credited for purposes of vesting and
determining a former CoBancorp employee's eligibility to participate in such
other benefit plans. No benefits currently provided CoBancorp or the CoBancorp
Subsidiaries employees which exceed those provided by FirstMerit and its
subsidiaries will be grandfathered or provided, except if required by law,
unless otherwise specifically agreed to by FirstMerit in writing.

                  (vii) Dividend Reinvestment Plan. As of November 1, 1997, the
DRIP was suspended. On or before the Effective Date, the DRIP will be
terminated.

                  (viii) Restricted Stock Plan. CoBancorp has adopted and
maintains the Restricted Stock Plan ("Restricted Stock Plan") for three
executive officers. CoBancorp represents that as of the date of this Agreement
it has issued a total of 4,500 shares of CoBancorp Common Stock under such
Restricted Stock Plan, that it will not amend or make any changes to the terms
or conditions of such Plan, nor will it grant any additional shares or rights
under such Plan. Prior to the Effective Time, the Board of Directors of
CoBancorp shall by resolution cause the immediate vesting of all outstanding
shares of restricted stock under the Plan.

         5.5. ACCESS, INFORMATION AND CONFIDENTIALITY. Upon reasonable notice,
CoBancorp and each of the CoBancorp Subsidiaries shall afford to FirstMerit and
its representatives (including, without limitation, directors, officers and
employees of FirstMerit, its counsel, accountants, environmental consultants and
other professionals retained by FirstMerit) full access during normal business
hours throughout the period prior to the Effective Time to the books, contracts,
records (including, without limitation, tax returns and work papers of
independent auditors), shareholder and customer information, properties,
personnel and such other information and documents of CoBancorp and each of the
CoBancorp Subsidiaries. FirstMerit shall have a right with the prior


                                       35
<PAGE>   38

notice to CoBancorp to have environmental assessments conducted on any
properties owned, managed or controlled by CoBancorp and the CoBancorp
Subsidiaries. CoBancorp shall not be required to provide access to any such item
or information if the providing of such access (i) would be reasonably likely to
result in the loss or impairment of any privilege with respect to such
information, or (ii) would be precluded by any law, ordinance, regulation,
judgment, order, decree, license or permit of any Governmental Entity.

         All information furnished by one party to another party in connection
with this Agreement and the transactions contemplated hereby which is regarded
by such furnishing party as confidential will be kept confidential by such other
party and its representatives (including, without limitation, directors,
officers and employees, its counsel, accountants and other professionals
retained by such party) and will be used only in connection with this Agreement
and the transactions contemplated hereby, and not in such party's business or by
its directors, officers and employees, its counsel, accountants and other
professionals retained by such party if the Merger is not consummated. Nothing
contained in this Section shall restrict or prohibit CoBancorp or FirstMerit
from disclosing information in any document filed with the Commission, FRB, OCC,
OTS, the Division and other Governmental Entities and bodies nor shall it in any
way restrict FirstMerit's right to exercise the CoBancorp Stock Purchase Option,
and so long as this Agreement has not been terminated pursuant to Article 7
hereof, FirstMerit may, notwithstanding this confidentiality provision, disclose
such information as it deems necessary or advisable in connection with
explaining or providing background information to security analysts and others
concerning the transactions contemplated by this Agreement, except that any such
information dealing with the areas of individual employees, their future
employment, reserves established for specific loans, matters related to
litigation and CoBancorp's business strategies, may only be disclosed with the
prior approval of CoBancorp, which approval shall not be unreasonably withheld.
It is the parties' intent to provide such analysts with accurate information
regarding the transaction in a light favorable to completion of the transactions
contemplated by this Agreement.

         5.6. CERTAIN FILINGS; CONSENTS AND ARRANGEMENTS. FirstMerit and
CoBancorp shall (a) promptly file all reports and applications required to be
filed with the Commission, the FRB and such other Governmental Entities (the
"Regulatory Authorities") as may have jurisdiction for such approvals as may be
required to be obtained from such Governmental Entities in order to carry out
the transactions contemplated by this Agreement as soon as practicable between
the date of this Agreement and the Effective Time and each FirstMerit Subsidiary
or CoBancorp Subsidiary that is a bank or savings association shall also file
all reports required to be filed with the FRB, the OCC, the OTS and the Division
with respect to the Merger and the other transactions contemplated by this
Agreement, (b) cooperate with one another (i) in promptly determining whether
any other filings are required to be made or consents, approvals, permits or
authorizations are required to be obtained under any other federal, state or
foreign law or regulation, and (ii) in promptly making any such filings,
furnishing information required in connection therewith and seeking timely to
obtain any such consents, approvals, permits or authorizations, and (c) deliver
to the other party to this Agreement copies of all such applications and reports
promptly after they are filed. In no event, however, shall either party hereto
be liable for any untrue statement of a material fact or omission



                                       36
<PAGE>   39

to state a material fact in any filing made with any Governmental Entity
pursuant to this Section made in reliance upon, and in conformity with, written
information concerning the other party hereto furnished by such other party
specifically for use in such filing. Each party hereto shall advise the other
party hereto promptly of the occurrence of any event which makes untrue any
statement of a material fact contained in any such filing or any amendment or
supplement thereto or that requires the making of a change in any such filing or
any amendment or supplement thereto in order to make any material statement
therein not misleading.

         5.7. TAKEOVER STATUTES AND PROVISIONS. CoBancorp shall use its diligent
efforts to (i) exempt CoBancorp, this Agreement, the CoBancorp Stock Purchase
Option and the Merger from the requirements of any state takeover law (including
without limitation, statutes relating to business combinations, control share
acquisitions and merger moratoriums) and from any provisions under its Corporate
Governance Documents, as applicable, by action of CoBancorp's Board of Directors
or otherwise, and (ii) assist in any challenge by FirstMerit to the
applicability to the Merger of any state takeover law.

         5.8. INDEMNIFICATION AND INSURANCE. Except as may be limited by
applicable law, for a period of six years after the Effective Time, FirstMerit
hereby agrees to honor the terms of the indemnification provisions of Article
II, Section 6 of CoBancorp's Code of Regulations, and all such provisions of the
CoBancorp Subsidiaries, copies of which are attached hereto as Exhibit 5.8,
which are provided to CoBancorp's and its subsidiaries' directors, officers and
employees, for matters occurring prior to the Effective Time. Moreover,
indemnification of directors, officers and employees of CoBancorp and CoBancorp
Subsidiaries following the Effective Time will be provided to the same extent it
is provided to other persons working in similar capacities for FirstMerit
following the Closing.

         For a period of up to three years following the Effective Time,
FirstMerit will maintain in effect the current insurance policies maintained by
CoBancorp (or substitute policies with substantially the same coverage and
terms) covering directors' and officers' liability with respect to claims which
arise from factors or events which occurred before the Effective Time, except
that FirstMerit's obligation under this paragraph for the second and subsequent
years following the Effective Time will be based upon its ability to obtain such
insurance at a commercially reasonable cost. CoBancorp shall notify FirstMerit
prior to purchasing or continuing any insurance to cover the matters contained
herein, provided, however, it is the intent of FirstMerit that tail coverage
will be purchased if such is available. To the extent insurance is available
under any of the provisions in this Section to cover such claims and costs, such
insurance shall be the primary source of funding these obligations.

         FirstMerit shall assume and honor Section 6.6 regarding indemnification
rights of the Agreement and Plan or Reorganization and Merger among CoBancorp,
Prime Savings Bank and Jefferson Savings Bank dated August 26, 1996.


                                       37
<PAGE>   40


         5.9. ADDITIONAL AGREEMENTS. Subject to the terms and conditions herein
provided, each of the parties hereto agrees to use its diligent efforts to take
promptly, or cause to be taken, all actions necessary, proper or advisable under
applicable laws to consummate the transactions contemplated by this Agreement.
In addition, without limitation, each party shall from time to time execute such
certificates as to factual matters necessary, proper or advisable in order to
receive the opinions contemplated by Article 6 of this Agreement.

         If, at any time after the Effective Time, the Surviving Corporation
considers or is advised that any further deeds, bills of sale, assignments,
assurances or any other actions or things are necessary or desirable to vest,
perfect or confirm of record its right, title or interest in and to any of the
rights, properties or assets of CoBancorp acquired or to be acquired by the
Surviving Corporation, CoBancorp and its officers and directors shall be deemed
to have granted to the Surviving Corporation an irrevocable power of attorney to
execute and deliver all such deeds, bills of sale, assignments and assurances
and to take and do all such other actions and things as may be necessary or
desirable to vest, perfect or confirm any and all right, title and interest in
and to such rights, properties or assets in the Surviving Corporation.

         5.10. COMPLIANCE WITH ANTITRUST LAWS. Each of FirstMerit and CoBancorp
shall use its diligent efforts to resolve such objections, if any, which may be
asserted with respect to the Merger by the FRB, the Department of Justice, or
any other Governmental Entity (including, without limitation, objections under
any antitrust laws and any applicable laws or regulations). In the event a suit
is threatened or instituted challenging the Merger as violative of the antitrust
laws, each of FirstMerit and CoBancorp shall use its diligent efforts to avoid
the filing of, resist or resolve such suit. FirstMerit and CoBancorp shall use
their diligent efforts to take such action as may be required: (a) by the FRB,
the Department of Justice, or any other Governmental Entity in order to resolve
such objections as any of them may have to the Merger, or (b) by any federal or
state court of the United States, in any suit brought by a private party or
Governmental Entity challenging the Merger as violative of any antitrust laws,
in order to avoid the entry of, or to effect the dissolution of, any injunction,
temporary restraining order or other order which has the effect of preventing
the consummation of the Merger.

         5.11. PUBLICITY. The initial press release announcing this Agreement
shall be a joint press release in a form mutually agreed upon by the parties and
thereafter, except as required by law, CoBancorp and FirstMerit shall consult
with each other and provide a written copy to each other prior to issuing any
press releases, or otherwise making public statements, with respect to the
transactions contemplated hereby and in making any filings with any Governmental
Entity.

         5.12. REGISTRATION STATEMENT, PROXY STATEMENT AND COMFORT LETTERS.


                                       38
<PAGE>   41



         (a) FirstMerit will, as soon as practicable, prepare and file with the
Commission the Registration Statement, and any required amendments thereto, will
use all reasonable efforts to have the Registration Statement declared effective
by the Commission as promptly as practicable and will maintain the effectiveness
of such Registration Statement. FirstMerit will also take any action required to
be taken under any applicable state blue sky or securities laws in connection
with the issuance of the FirstMerit Common Stock pursuant to the Merger.
CoBancorp shall promptly furnish FirstMerit all information concerning
CoBancorp, the CoBancorp Subsidiaries, and the holders of its capital stock and
shall promptly take any action as FirstMerit may reasonably request in
connection with any such action.

         FirstMerit, with the direct assistance of CoBancorp, will as soon as
practicable prepare and file the Proxy Statement with the Commission, and take
such other action so that CoBancorp may promptly after the effectiveness of the
Registration Statement mail the Proxy Statement to CoBancorp's shareholders.
FirstMerit and CoBancorp shall cooperate and consult with each other in the
preparation of the Proxy Statement and CoBancorp shall promptly furnish
FirstMerit all information concerning CoBancorp, the CoBancorp Subsidiaries, and
the holders of its capital stock, and shall promptly take any action as
FirstMerit may reasonably request in connection with any such action.

         (b) Each of FirstMerit and CoBancorp will cause its respective
independent auditors to issue a letter addressed to both FirstMerit and
CoBancorp, within three business days prior to the effectiveness of the
Registration Statement and also as of Closing, stating among other things, the
following: (i) such accountants are independent public accountants within the
meaning of the Securities Act and the rules and regulations promulgated
thereunder; (ii) in the opinion of such accountants, the financial statements
included in the Registration Statement and reported on therein by such
accountants comply as to form in all material respects with the applicable
accounting requirements of the Securities Act and the Rules and Regulations
promulgated thereunder; (iii) on the basis of specified limited procedures
(which procedures do not constitute an examination in accordance with generally
accepted auditing standards), including a reading of the latest available
unaudited financial statements, inquiries of officials responsible for financial
and accounting matters, nothing came to their attention which caused them to
believe that, during the period subsequent to December 31, 1996, to a specified
date not more than three business days prior to the effective date of the
Registration Statement and to a specified date not more than three business days
prior to Closing, there was any change in the shares of its capital stock or
long-term debt, if any, (other than changes due to payments in accordance with
the terms of such debt, or in the event of any such change in long-term debt,
the amount thereof) or any decrease (increase) in the total or per share amount
of its net income (net loss) as compared with the corresponding period in the
preceding year, except in all instances for changes or decreases (increases)
which the Registration Statement discloses have occurred or may occur; (iv) such
accountants have read the other data included in the Registration Statement with
respect to the financial condition and operations of their respective clients
and they find such data to be correctly computed and in agreement with their
respective books and records of FirstMerit and CoBancorp.



                                       39
<PAGE>   42

         (c) FirstMerit shall be responsible for all expenses incident to the
obtaining of the requisite regulatory approvals from Governmental Entities.
Without limiting the generality of the foregoing, the expenses to be assumed by
FirstMerit shall include (i) all expenses for its own legal counsel and other
expenses incurred by FirstMerit incident to the preparation and filing of
applications on its behalf and on behalf of CoBancorp and other requests for
regulatory consents and approvals with the appropriate regulatory agencies as
contemplated by this Agreement; (ii) all expenses for its own legal counsel and
all other expenses incurred in connection with the registration of the
FirstMerit Common Stock under the federal and state securities laws and (iii)
all printing and mailing expenses of the parties. The expenses to be assumed by
FirstMerit shall not include any legal, accounting or other expenses incurred by
CoBancorp in connection with its own corporate proceedings or incident to the
transactions contemplated by this Agreement.

         5.13. AFFILIATES COMPLIANCE WITH THE SECURITIES ACT.

         (a) Within 30 days after the date of this Agreement, each of CoBancorp
and FirstMerit shall identify to the other party all persons whom it reasonably
believes are its "affiliates" as that term is used in paragraphs (c) and (d) of
Rule 145 under the Securities Act and/or Accounting Series, Releases 130 and
135, as amended, of the Commission (the "Affiliates"). Thereafter and until the
Effective Time, each of CoBancorp and FirstMerit shall identify to the other
party each additional person whom it reasonably believes to have thereafter
become its Affiliate.

         (b) Each of CoBancorp and FirstMerit shall use its diligent efforts to
cause each person who is identified as an Affiliate pursuant to clause (a) above
to deliver to FirstMerit not later than the date on which the Merger is
approved, a written agreement, substantially in the form of Exhibit 5.13(b)-1
(in the case of Affiliates of CoBancorp) and Exhibit 5.13(b)-2 (in the case of
Affiliates of FirstMerit).

         5.14. COBANCORP SHAREHOLDER MEETING. CoBancorp shall take all action
necessary, in accordance with applicable law and its Corporate Governance
Documents to convene a special or regular meeting of the holders of Common Stock
(the "CoBancorp Meeting") as promptly as practicable after the effectiveness of
the Registration Statement for the purpose of considering and taking action upon
this Agreement and the transactions contemplated herein. Subject to the
fiduciary obligations and duties of the Board of Directors of CoBancorp under
Ohio law and to the provisions of Section 5.1 of this Agreement, the Board of
Directors of CoBancorp shall recommend that the holders of the Common Stock vote
in favor of and approve the Merger and adopt this Agreement at the CoBancorp
Meeting.

         5.15. TAX-FREE REORGANIZATION TREATMENT. Neither FirstMerit nor
CoBancorp shall intentionally take or cause to be taken any action, whether
before or after the Effective Time, which would disqualify the Merger as a
"reorganization" within the meaning of Section 368(a) of the Code, other than
FirstMerit's exercise of its rights under the CoBancorp Stock Purchase Option.



                                       40
<PAGE>   43

         5.16. MERGERS OF SUBSIDIARIES. The Board of Directors of FirstMerit
intends, contemporaneously with the merger of CoBancorp with and into
FirstMerit, to merge the CoBancorp Subsidiaries with and into FirstMerit Bank,
N.A., a wholly owned subsidiary of FirstMerit.

         CoBancorp shall cause such of the CoBancorp Subsidiaries as FirstMerit
may request to enter into definitive merger or consolidation agreements with
FirstMerit Bank, N.A., providing for the merger or consolidation of the
CoBancorp Subsidiaries with or into FirstMerit Bank, N.A.; provided, however,
that, in all cases, the obligation of CoBancorp to cause such merger or
consolidation shall be subject to the condition that the Merger be
simultaneously consummated; and provided further, notwithstanding anything to
the contrary in this Agreement, (i) the representations and warranties of
CoBancorp in this Agreement shall not be deemed to be untrue or breached, (ii)
CoBancorp shall not be deemed to have failed to perform any covenant or
obligation contained in this Agreement, and (iii) no condition to FirstMerit's
obligation to effect the Merger shall be deemed not to have been satisfied by or
as a result of any merger or consolidation consummated pursuant to this Section.
CoBancorp shall cause the CoBancorp Subsidiaries to fully cooperate with
FirstMerit in consummating these mergers or consolidations, including
cooperating in the filing of any necessary regulatory applications.

         5.17. CURRENT INFORMATION. During the period from the date of this
Agreement to the Effective Time, each of CoBancorp and FirstMerit will promptly
notify the other of (i) any material change in the normal course of its
business, (ii) any governmental complaints, investigations or hearings (or
communications indicating that the same may be contemplated), or receipt of any
memorandum or understanding or cease and desist order from a regulatory
authority, or (iii) the institution or the threat of material litigation
involving such party and will keep the other party fully informed of such
events. During such period, FirstMerit and CoBancorp shall promptly provide the
other with monthly unaudited financial statements as soon as they are available
and each shall promptly provide the other with a copy of all Reports filed by it
after the date of this Agreement through the Effective Time. Each of FirstMerit
and CoBancorp agrees to keep the foregoing information strictly confidential.

         5.18. INTEGRATION OF OPERATIONS. Subject to applicable laws,
regulations and the requirements of Governmental Entities, during the period
from the date of this Agreement to the Effective Time, the parties will consult
and cooperate fully with each other to do all things advisable to prepare for
and facilitate the integration of CoBancorp and the applicable CoBancorp
Subsidiaries operations into and with FirstMerit's operations as rapidly and
effectively as possible as of the Effective Time, including, without limitation,
preparation for the integration of such branch operations, if any (including,
without limitation, the preparation for the necessary installation of all of
FirstMerit's or its subsidiaries hardware and software systems), management
information systems, financial and accounting operations, employee compensation
and benefit matters and similar matters, and employee training, as requested by
FirstMerit; provided that all such integration prior to the Effective Time shall
be subject to the concurrence of CoBancorp and that all communications from
FirstMerit to CoBancorp regarding such integration shall be made through John S.
Kreighbaum and Timothy Esson.



                                       41
<PAGE>   44

         5.19. NASD LISTING. FirstMerit will file an additional listing
application with the National Association of Securities Dealers, Inc. (the
"NASD") for the FirstMerit Common Stock to be issued in the Merger at the time
prescribed by applicable rules and regulations. In addition, FirstMerit will use
its best efforts to maintain its listing on the Nasdaq/NMS.


         5.20. ENVIRONMENTAL REMEDIATION. In addition to other rights which
FirstMerit has to conduct environmental investigations of CoBancorp properties
under Section 5.5, FirstMerit will retain an environmental consulting firm
within 20 days after execution of this Agreement. FirstMerit's consulting firm
will provide FirstMerit with a "Phase I," and if FirstMerit deems reasonably
necessary, a "Phase II" report, on the 49 South Main Street, Oberlin, Ohio
property (the "Property") currently owned by a CoBancorp Subsidiary.

         If the Phase I report indicates that further testing, monitoring and/or
remediation will be required, then FirstMerit's environmental consulting firm
and CoBancorp's environmental consulting firm will promptly meet to agree on the
monitoring and testing methodologies, including conducting joint testing or
taking separate samples for processing at different labs, prior to beginning the
Phase II process.

         In addition to providing a Phase II report to FirstMerit, the
consulting firm will provide FirstMerit with an estimation of the costs and
expenses which such firm believes in its best estimate will be necessary to
remediate the property (including providing detail on any assumptions made in
reaching the estimate). The estimate will be such to bring the property into
full compliance with the applicable federal, state and local environmental
standards for property of this type (which compliance standard will be at least
to a level to place the property in a condition without significant diminution
in value related to its environmental condition) ("Estimated Costs"). Within
seven business days from the receipt of a Phase II report, FirstMerit will
provide CoBancorp with a copy of the Phase II report ("Phase II Report"), but
will not be required to deliver the report on the Estimated Costs.

         Upon receipt of the Phase II Report, CoBancorp's environmental firm
will promptly review and prepare its own estimation of the Estimated Costs.
Within seven business days from the receipt of a Phase II report, CoBancorp will
provide FirstMerit with a copy of the Phase II report, but will not be required
to deliver any report on the Estimated Costs.

         The two firms will then meet to review and agree upon the Estimated
Costs, which will be a single figure and not a range ("Final Estimated Costs").
If the firms cannot agree, but if the estimations are within 15% of each other,
the two amounts will be averaged to arrive at the Final Estimated Costs.
Otherwise the two firms will choose a third firm to review the reports of each
firm, and other information which the third firm may request, and the third firm
will promptly provide a 



                                       42
<PAGE>   45

written report to FirstMerit and CoBancorp with the Final Estimated Costs
("Final Report"). The determination of the Final Estimated Costs by either the
averaging method, or the determination method, shall be binding upon both
parties.

         It is assumed by the parties that no amounts will be expended for the
Final Estimated Costs prior to the Effective Time. The Final Estimated Costs
will be allocated between the parties as follows: the Final Estimated Costs, on
an after-tax basis (based on the highest federal marginal tax rate), up to and
including $600,000 in the aggregate shall be borne by FirstMerit ("FirstMerit
Amount"), and amounts in excess of this amount, on an after-tax basis (based on
the highest federal marginal tax rate), shall be borne by CoBancorp; provided
that if such after-tax costs exceed $2.4 million (being the aggregate of
FirstMerit's $600,000 and CoBancorp's $1.8 million, both aftertax)("Excess
Amount"), CoBancorp will have a right upon written notice to FirstMerit to
either terminate this Agreement, or assume the Excess Amount ("CoBancorp
Notice"). CoBancorp will have 14 days after receipt of the Final Report to
deliver the CoBancorp Notice.

         Upon receipt of the CoBancorp Notice that it has elected to terminate
the Agreement, FirstMerit will have two business days to notify CoBancorp in
writing that FirstMerit either waives the termination and that FirstMerit will
agree to assume the Excess Amount, or accepts the termination conditioned upon
CoBancorp's prompt payment to FirstMerit of all of FirstMerit's reasonable third
party and out of pocket expenses, including but not limited to registration
fees, printing costs, the costs and expenses related to its environmental
consultant and its preparation of the various reports, attorney fees, and
accounting fees and costs. No reimbursement would be due for any commission to
Goldman, Sachs & Co.

         To the extent that CoBancorp is responsible for the Final Estimated
Costs and the Excess Amount, and such amounts exceed the FirstMerit Amount, they
shall be paid by CoBancorp at the Effective Time through a reduction of the
Merger Consideration in the amount of the after-tax cost of such excess by an
appropriate adjustment to the Exchange Ratio; provided that the reduction shall
be only up to an amount, on an after-tax basis, that FirstMerit shall certify to
CoBancorp, as of the Effective Time, as the estimated amount of the cost of the
remediation of the property that FirstMerit in good faith actually intends to
incur.

         Prior to the Effective Time, CoBancorp will have a right to sell the
Property upon terms which are acceptable to FirstMerit. FirstMerit has right to
deem terms unacceptable if the terms require FirstMerit to assume or be subject
to any liability or obligation which it deems in good faith to be greater or
different than that under this Section 5.20.

         Each party will be responsible for the costs associated with hiring its
own environmental consulting firm during the time between the execution of this
Agreement and the Effective Time. All of these costs and expenses will be
considered part of the Estimated Costs.



                                       43
<PAGE>   46

                                  6. CONDITIONS

         6.1. CONDITIONS TO EACH PARTY'S OBLIGATIONS TO EFFECT THE MERGER. The
respective obligations of each party to effect the Merger shall be subject to
the fulfillment or waiver at or prior to the Closing of the following
conditions:

          (a) The Merger and this Agreement shall have been approved and adopted
by the requisite vote of the holders of CoBancorp's Common Stock.

          (b) All authorizations, consents, orders or approvals, lack of any
injunctive actions by the Department of Justice or any state anti-trust agency,
of the FRB, OCC, OTS, Division and any other Governmental Entity (collectively,
"Consents") which are necessary for the consummation of the Merger (other than
immaterial Consents, the failure to obtain which would not involve criminal
liability, any material civil penalties or fines, or would not have or
reasonably be expected to have a Material Adverse Effect on the combined
businesses, financial condition, or results of operations of FirstMerit,
CoBancorp, the FirstMerit Subsidiaries and the CoBancorp Subsidiaries taken as a
whole), shall have been obtained or shall have occurred and shall be in full
force and effect, and all applicable waiting periods shall have expired, at the
Effective Time. A material Consent shall not be deemed to have been obtained if
the Consent shall include any conditions or requirements which, in the
reasonable opinion of the Board of Directors of FirstMerit, would have a
Material Adverse Effect on the anticipated economic and business benefits to
FirstMerit of the transactions contemplated by this Agreement, taken as a whole.

          (c) The Registration Statement shall have become effective in
accordance with the provisions of the Securities Act and shall not be subject to
a stop order suspending the effectiveness of the Registration Statement.

          (d) No temporary restraining order, preliminary or permanent
injunction or other order by any federal or state court or agency in the United
States which enjoins or prohibits the consummation of the Merger shall have been
issued and remain in effect.

         (e) FirstMerit shall have obtained an opinion of its counsel,
reasonably satisfactory in form and substance to FirstMerit and dated as of
Closing, to the effect that the Merger will constitute a tax-free reorganization
within the meaning of Section 368(a)(1)(A) of the Code.

         6.2. CONDITIONS TO OBLIGATION OF COBANCORP TO EFFECT THE MERGER. The
obligation of CoBancorp to effect the Merger shall be subject to the fulfillment
or waiver at or prior to the Closing of the additional following conditions:

          (a) FirstMerit shall have performed in all material respects all of
its obligations contained in this Agreement required to be performed at or prior
to the Closing.



                                       44
<PAGE>   47

          (b) The representations and warranties of FirstMerit contained in this
Agreement shall be true and correct both: (i) on the date of this Agreement, and
(ii) as of the Effective Time as if made at and as of such time, (x) except,
both on the date of this Agreement and at the Effective Time, as expressly
contemplated or permitted by this Agreement, (y) except, as of the Effective
Time, for representations and warranties relating to a time or times other than
the Effective Time, and (z) except, both on the date of this Agreement and at
the Effective Time, to the extent that the untruthfulness or inaccuracy of the
representations or warranties of FirstMerit, individually or in the aggregate,
shall not have a Material Adverse Effect on FirstMerit.

         (c) FirstMerit shall have furnished CoBancorp a Certificate dated the
date of the Closing, signed on behalf of FirstMerit by the Chief Executive
Officer or President, and the Chief Financial Officer of FirstMerit, that to the
best of their knowledge and belief, the conditions set forth in Sections 6.2(a),
(b) and (e) have been satisfied.

         (d) CoBancorp shall have received the opinion of legal counsel for
FirstMerit, dated as of Closing, substantially to the effect set forth in
Exhibit 6.2(d) hereto, and such certificates from the appropriate persons and/or
authorities regarding FirstMerit's board resolutions, form of corporate
governance documents and good standing.

         (e) Since the date of this Agreement, there shall have not been any
change in the financial condition, results of operations or business of
FirstMerit and the Subsidiaries of FirstMerit that would have a Material Adverse
Effect on FirstMerit.

         6.3. CONDITIONS TO OBLIGATION OF FIRSTMERIT TO EFFECT THE MERGER. The
obligation of FirstMerit to effect the Merger shall be subject to the
fulfillment or waiver at or prior to the Closing of the additional following
conditions:

         (a) CoBancorp shall have performed in all material respects all of its
obligations contained in this Agreement required to be performed at or prior to
the Closing.

         (b) The representations and warranties of CoBancorp contained in this
Agreement shall be true and correct both: (i) on the date of this Agreement, and
(ii) as of the Effective Time as if made on and as of such time, (x) except,
both on the date of this Agreement and at the Effective Time, as expressly
contemplated or permitted by this Agreement, (y) except, as of the Effective
Time, for representations and warranties relating to a time or times other than
the Effective Time, and (z) except, both on the date of this Agreement and at
the Effective Time, to the extent that the untruthfulness or inaccuracy of the
representations or warranties of CoBancorp, individually or in the aggregate,
shall not have a Material Adverse Effect on CoBancorp.

         (c) Since the date of this Agreement there shall not have been any
change in the financial condition, results of operations or business of
CoBancorp and the subsidiaries of CoBancorp that either individually or in the
aggregate would have a Material Adverse Effect on CoBancorp, other than change
as a result of action taken under Section 5.2.6 and the second paragraph of
Section 5.6, and the responses thereto by CoBancorp and the impact thereof on
the operating performance of CoBancorp.



                                       45
<PAGE>   48

         (d) CoBancorp shall have furnished FirstMerit a certificate dated the
date of the Closing signed on behalf of CoBancorp by the Chief Executive Officer
or President, and Chief Financial Officer of CoBancorp, that to the best of
their knowledge and belief, the conditions set forth in Sections 6.3(a), (b) and
(c) have been satisfied. In addition, CoBancorp shall have furnished FirstMerit
certificates, one dated the effective date of the Registration Statement and
Proxy, and one as of the Closing, signed on behalf of CoBancorp by the Chief
Executive Officer or President, and Chief Financial Officer of CoBancorp, that
to the best of their knowledge and belief, that CoBancorp participated in the
preparation of the Registration Statement and the Proxy Statement, including
review and discussion of the contents thereof, and nothing came to the attention
of CoBancorp that caused it to believe that the Registration Statement or the
Proxy Statement at the time such documents became effective, and as of the date
of Closing, contained any untrue statement of a material fact or omitted to
state any material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they are
made, not misleading.

         (e) FirstMerit shall have received the opinion of legal counsel for
CoBancorp dated as of Closing, substantially to the effect set forth in Exhibit
6.3(e) hereto, and such certificates from the appropriate persons and/or
authorities regarding CoBancorp's and its subsidiaries' board resolutions, forms
of corporate governance documents and good standing.

                                7. MISCELLANEOUS

         7.1. TERMINATION. Notwithstanding any other provision of this
Agreement, this Agreement may be terminated at any time prior to the Effective
Time, whether before or after approval of this Agreement by the shareholders of
FirstMerit and CoBancorp:

         (a) by mutual agreement of the parties by the vote of a majority of the
Board of Directors of each of FirstMerit and CoBancorp;

         (b) by the vote of a majority of the Board of Directors of either
FirstMerit or CoBancorp if the Merger shall not have been consummated on or
before September 1, 1998, unless the failure to consummate by such date is
related to the action or inaction of the Governmental Entities and such action
or inaction is not directly related to either FirstMerit's or CoBancorp's breach
of their respective obligations under Sections 5.6 or 5.12(a), then on or before
November 1, 1998 (provided that the terminating party is not in material breach
of any representation, warranty, covenant or other agreement contained herein);

         (c) by the vote of a majority of the Board of Directors of CoBancorp if
any of the conditions specified in Sections 6.1 and 6.2 have not been met or
waived by CoBancorp at such time as such condition can no longer be satisfied;




                                       46
<PAGE>   49

         (d) by the vote of a majority of the Board of Directors of FirstMerit
if any of the conditions specified in Sections 6.1 and 6.3 have not been met or
waived by FirstMerit at such time as such condition can no longer be satisfied;

         (e) by the vote of a majority of the Board of Directors of either
FirstMerit or CoBancorp if any regulatory agency has denied approval of the
Merger and such denial has become final and non-appealable (regardless of
whether CoBancorp is deemed to be a "party" to an application with respect to
the Merger);

         (f) by the vote of a majority of the Board of Directors of either
FirstMerit or CoBancorp in the event of a material breach by the other party of
any representation, warranty, covenant or agreement, which breach is not cured,
or cannot be cured, within 30 days after written notice thereof is given to the
party committing such breach;

         (g) at any time prior to November 5, 1997, by FirstMerit if CoBancorp
shall not have executed and delivered the CoBancorp Stock Purchase Option;

         (h) by the vote of a majority of the Board of Directors of CoBancorp
(with written notice thereof to FirstMerit which notice is final and may not be
withdrawn) at any time during the fourth and fifth full trading days immediately
prior to the Effective Time, if (x) the Average Closing Price is less than
$20.40 (subject to adjustment pursuant to Section 2.7), and (y) FirstMerit shall
not have given written notice to CoBancorp on the second or third full trading
day immediately prior to the Effective Time which notice indicates that
FirstMerit agrees that the Exchange Ratio shall be calculated by multiplying
1.939 by a factor equal to $20.40 divided by the Average Closing Price; and

         (i) by the vote of a majority of the Board of Directors of CoBancorp
pursuant to and in accordance with the provisions of Section 5.20.

         7.2. NON-SURVIVAL OF REPRESENTATIONS, WARRANTIES; EFFECT OF
TERMINATION. The representations and warranties or covenants in this Agreement
will terminate at the Effective Time or the earlier termination of this
Agreement pursuant to Section 7.1, as the case may be: provided however, that if
the Merger is consummated, Sections 1.1.5, 2.1 through 2.9, 5.4, 5.5, 5.8, 5.9,
5.10, 5.12(c), 5.13, 5.15, 5.16, 5.19 and 7.2 will survive the Effective Time to
the extent contemplated by such Sections; provided, further in the event of the
termination of this Agreement, this Agreement shall become void and of no effect
except that the first sentence in the second paragraph of Section 5.5, and all
of Sections 5.12(c) and 7.11, will in all events survive any termination of this
Agreement.

         7.3. WAIVER. Either party hereto may, by written notice to the other
party hereto, (a) extend the time for the performance of any of the obligations
or other actions of such other party under this Agreement, (b) waive any
inaccuracies in the representations or warranties of such other party contained
in this Agreement or in any document delivered pursuant to this Agreement, (c)



                                       47
<PAGE>   50

waive compliance with any of the conditions or covenants of such other party
contained in this Agreement, or (d) waive or modify performance of any of the
obligations of such other party under this Agreement. Except as provided in the
preceding sentence, no action taken pursuant to this Agreement, including,
without limitation, any investigation by or on behalf of either party, shall be
deemed to constitute a waiver by the party taking such action of compliance with
any of the representations, warranties, covenants, conditions, or agreements
contained in this Agreement. The waiver by either party hereto of a breach of
any provision of this Agreement shall not operate or be construed as a waiver of
any subsequent breach.

         7.4. AMENDMENT. This Agreement may be amended or supplemented by the
parties hereto, by action taken by or on behalf of their respective Boards of
Directors, at any time before or after approval of this Agreement by the
shareholders of CoBancorp, provided however, that any such amendment or
supplement to this Agreement made subsequent to the adoption of this Agreement
by the shareholders of CoBancorp shall not (a) alter the amount or change the
form of the consideration contemplated by this Agreement, (b) alter or change
any term of the Amended and Restated Articles of Incorporation of the Surviving
Corporation to be affected by the Merger, or (c) alter or change the
qualification of the Merger as a tax-free reorganization under the provisions of
Section 368 of the Code.

         7.5. ENTIRE AGREEMENT. This Agreement and the CoBancorp Stock Purchase
Option, and the agreements referenced and contemplated therein and thereby,
contain the entire agreement among FirstMerit and CoBancorp with respect to the
Merger and the other transactions contemplated hereby and thereby, and supersede
all prior agreements among the parties with respect to such matters.

         7.6. APPLICABLE LAW. This Agreement will be governed by and construed
in accordance with the laws of the State of Ohio, without giving effect to the
principles of conflicts of law thereof.

         7.7. CERTAIN DEFINITIONS.

         (a) For purposes of this Agreement, the term:

                  (i) "affiliate" and "associate" shall have the respective
         meanings ascribed to such terms in Rule 12b-2 of the General Rules and
         Regulations under the Exchange Act, as in effect on the date hereof;

                  (ii) "control" (including the terms "controlled by" and "under
         common control with") means the possession, directly or indirectly or
         as trustee or executor, of the power to direct or cause the direction
         of the management or policies of a person, whether through the
         ownership of stock, as trustee or executor, by contract or credit
         arrangement or otherwise;

                                       48
<PAGE>   51

                  (iii) "person" means an individual, corporation, partnership,
         association, trust or unincorporated organization; and

                  (iv) "Material Adverse Effect" on CoBancorp or FirstMerit
         means a material adverse effect (other than as a result of changes (x)
         in banking laws or regulations of general applicability or
         interpretations thereof by court or governmental entities, and (y) in
         generally accepted accounting principles) on the respective condition
         (financial and otherwise), results of operations, or business of
         CoBancorp and its Subsidiaries, or FirstMerit and its Subsidiaries, as
         the case may be, taken as a whole, or on the ability of CoBancorp or
         FirstMerit, as the case may be, to consummate the transactions
         contemplated hereby.

                  The effect of any action taken by CoBancorp at the written
         request of FirstMerit pursuant to Section 5.2.6 shall not be taken into
         consideration in determining whether any Material Adverse Effect has
         occurred.

         7.8. NOTICES. All notices and other communications hereunder will be in
writing and will be deemed to have been duly given or delivered, if delivered
personally or delivered by a recognized commercial courier, to each of the
parties at the following addresses:

<TABLE>
<CAPTION>
         TO COBANCORP:                                        TO FIRSTMERIT:
<S>                                                         <C>
         John S. Kreighbaum, Chairman,                        John R. Cochran, President and
         President and Chief Executive Officer                Chief Executive Officer
         CoBancorp Inc.                                       FirstMerit Corporation
         1530 West River Road, North                          III Cascade Plaza, 7th Floor
         Elyria, Ohio 44035                                   Akron, Ohio  44308

         WITH A COPY TO:                                      WITH COPIES TO:

         Barry P. Taff, P.C.                                  Terry E. Patton, Senior Vice President
         Christopher R. Kelly, P.C.                           and Secretary
         Silver, Freedman & Taff, L.L.P.                      FirstMerit Corporation
         1100 New York Ave., N.W.                             III Cascade Plaza, 7th Floor
         Suite 700                                            Akron, Ohio  44308

         Washington, D.C. 20005

                                                              Philip A. Lloyd II
                                                              and Kevin C. O'Neil
                                                              Brouse & McDowell
                                                              500 First National Tower
                                                              Akron, Ohio 44308
</TABLE>


                                       49
<PAGE>   52

or to such other address as any party may have furnished to the other parties in
writing in accordance with this Section 7.8.

         7.9. COUNTERPARTS; EXHIBITS. This Agreement may be executed in any
number of counterparts, each of which will be deemed to be an original but all
of which together will constitute but one agreement. Any exhibits or schedules
referenced herein and attached hereto shall be incorporated by reference herein
as if fully written out in this Agreement.

         7.10. PARTIES IN INTEREST. This Agreement is not intended to nor will
it confer upon any other person any rights or remedies, except as expressly
stated herein.

         7.11. EXPENSES. Except as otherwise set forth in this Agreement, each
party shall be responsible for the costs and expenses incurred by it in
connection with the transactions contemplated by this Agreement. If this
Agreement is terminated by CoBancorp or FirstMerit pursuant to 7.1(f) because of
the material breach by the other party of any representation, warranty,
covenant, undertaking or restriction contained in this Agreement, if the
terminating party is not in material breach of any representation, warranty,
covenant, undertaking or restriction contained in this Agreement, then the
breaching party shall pay all costs and expenses of the terminating party,
including but not limited to printing, mailing and related fees, as well as fees
for financial advisors, accountants and legal counsel; provided, however, that
if this Agreement is terminated under circumstances other than those described
in this Section 7.11, all costs and expenses incurred in connection with this
Agreement and the transactions contemplated hereby will be paid by the party
incurring such costs and expenses.

         7.12. ENFORCEMENT OF THE AGREEMENT. The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or were
otherwise breached, that it is impossible to measure in money the damages that
would result to a party by reason of the failure of any of the parties to
perform any of the obligations of this Agreement and that money damages would be
an inadequate remedy in this instance. It is accordingly agreed that the parties
hereto will be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions hereof in
any court of the United States or any state having jurisdiction, this being in
addition to any other remedy to which they are entitled at law or in equity. In
addition, it is agreed and that if any party should institute an action or
proceeding seeking specific enforcement of this Agreement, the party against
which such action or proceeding is brought hereby waives the claim or defense
that the party instituting such action or proceeding has an adequate remedy at
law and hereby agrees not to assert in any such action or proceeding the claim
or defense that such a remedy at law exists and shall waive or not assert any
requirement to post bond in connection with seeking specific performance.
Notwithstanding anything to the contrary herein, and in addition to any rights
set forth in Section 7.11, a party may seek monetary damages against a breaching
party for any willful breach of this Agreement.

                                       50
<PAGE>   53

         7.13. SEVERABILITY. If any term or other provision of this Agreement is
invalid, illegal or incapable of being enforced by any rule of law or public
policy, all other terms and provisions of this Agreement will nevertheless
remain in full force and effect so long as the economic or legal substance of
the transactions contemplated hereby is not affected in any manner adverse to
any party hereto. Upon any such determination that any term or other provision
is invalid, illegal or incapable of being enforced and does not adversely affect
the substance of these transactions in a material way, the parties hereto will
negotiate in good faith to modify this Agreement so as to effect the original
intent of the parties as closely as possible in an acceptable manner to the end
that the transactions contemplated by this Agreement are consummated to the
extent possible.


                                       51
<PAGE>   54

         IN WITNESS WHEREOF, CoBancorp and FirstMerit have caused this Agreement
to be signed by their respective officers thereunto duly authorized, all as of
the day and year first written above.

                                          FirstMerit Corporation

Attest:

/S/ TERRY E.  PATTON                      By: /S/ JOHN R.  COCHRAN
- ----------------------------                 -----------------------------
Terry E. Patton, Secretary                John R. Cochran, President and
                                          Chief Executive Officer

[KCO:MERGER.WPD]

                                 ACKNOWLEDGMENT

STATE OF OHIO                       )
                                    ) SS:
COUNTY OF SUMMIT                    )

         BE IT REMEMBERED that on this 2nd day of November, 1997, personally
came before me, a Notary Public in and for the State and County aforesaid, John
R. Cochran, President and Chief Executive Officer, and Terry E. Patton, Senior
Vice President and Secretary of FirstMerit Corporation, an Ohio corporation, and
they duly executed the Agreement of Affiliation and Plan of Merger before me and
acknowledged it to be their act and deed and the act and deed of said
Corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and seal this 2nd day
of November, 1997.

                                              /S/ KEVIN C.  O'NEIL
                                              ---------------------------------
                                                 Kevin C. O'Neil, Notary Public


<PAGE>   55



                                          CoBancorp Inc.
Attest:

/S/ LOIS E.  GUNNING                      By: /S/ JOHN S.  KREIGHBAUM
- ----------------------------                 ----------------------------------
Lois E.  Gunning, Secretary               John S. Kreighbaum, Chairman,

                                          President and Chief Executive Officer

                                 ACKNOWLEDGMENT

STATE OF OHIO                       )
                                    ) SS:
COUNTY OF LORAIN                    )

         BE IT REMEMBERED that on this 2nd day of November, 1997, personally
came before me, a Notary Public in and for the State and County aforesaid, John
S. Kreighbaum, Chairman, President and Chief Executive Officer and Lois E.
Gunning, Secretary of CoBancorp Inc., an Ohio corporation, and they duly
executed the Agreement of Affiliation and Plan of Merger before me and
acknowledged it to be their act and deed and the act and deed of said
Corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and seal this 2nd day
of November, 1997.

                                                /S/ LINDA B.  PAVLICK
                                                ------------------------------
                                                Notary Public


<PAGE>   56


                                   EXHIBITS TO

                   AGREEMENT OF AFFILIATION AND PLAN OF MERGER
                             FIRSTMERIT CORPORATION
                                       AND
                                 COBANCORP INC.
<TABLE>
<S>                                                                           <C>  
Form of Certificate of Merger                                                   Exhibit 1.1.2
Articles and Regulations of Surviving Corporation                               Exhibit 1.1.4
FirstMerit Disclosure Letter                                                    Exhibit 3.3
CoBancorp Stock Purchase Option                                                 Exhibit 3.15
CoBancorp Disclosure Letter                                                     Exhibit 4.3
Employment Agreements                                                           Exhibit 5.4(a)
Executive Severance Payments                                                    Exhibit 5.4(b)
Severance Payments                                                              Exhibit 5.4(c)
Indemnification Provisions                                                      Exhibit 5.8
Form of Affiliates Agreement for CoBancorp                                      Exhibit 5.13(b)-1
Form of Affiliates Agreement for FirstMerit                                     Exhibit 5.13(b)-2
Form of Legal Opinion of Brouse & McDowell                                      Exhibit 6.2(d)
Form of Legal Opinion of Silver, Freedman & Taff, L.L.P.                        Exhibit 6.3(e)
</TABLE>


<PAGE>   1



                                 EXHIBIT 2.2





<PAGE>   2
                                  EXHIBIT 2.2

          COBANCORP INC. STOCK PURCHASE OPTION DATED NOVEMBER 3, 1997

<PAGE>   3

                              STOCK PURCHASE OPTION

         THIS STOCK PURCHASE OPTION, dated as of November 3, 1997 (the
"Agreement"), is by and between CoBancorp Inc., an Ohio corporation
("CoBancorp"), and FirstMerit Corporation, an Ohio corporation ("FirstMerit").

         WHEREAS, CoBancorp and FirstMerit propose to enter into an Agreement of
Affiliation and Plan of Merger, dated as of November 3, 1997 (the "Merger
Agreement"), providing for the merger of CoBancorp with and into FirstMerit (the
"Merger"); and

         WHEREAS, as a condition and inducement to FirstMerit to enter into the
Merger Agreement, FirstMerit has requested that CoBancorp agree, and CoBancorp
has agreed, to grant the option contained in the Agreement to FirstMerit;

         NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, and covenants set forth in this Agreement and in
the Merger Agreement, CoBancorp and FirstMerit agree as follows:

         1. CERTAIN DEFINITIONS. In addition to the terms otherwise defined in
this Agreement, the following terms shall have the meanings set forth below:

                  (a) "Affiliate" and "Associate" shall have the meanings given
to them in Rule 12b-2 under the Exchange Act.

                  (b) "Beneficial ownership" and "beneficially own" shall have
the meanings given to them in Rule 13d-3 under the Exchange Act.

                  (c) "BHC Act" shall mean the Bank Holding Company Act of 1956,
as amended.

                  (d) "Capital Stock" shall mean all classes of equity shares of
CoBancorp, including the Common Stock and any other classes of common or
preferred shares.

                  (e) "Common Stock" shall mean the shares of common stock,
without par value, of CoBancorp.

                  (f) "Effective Time" shall have the meaning given to it in the
Merger Agreement.

                  (g) "Exchange Act" shall mean the Securities Exchange Act of
1934, as amended.

                  (h) "Federal Reserve" shall mean the Board of Governors of 
the Federal Reserve System.

                                        1


<PAGE>   4



                  (i) "Group" shall have the same meaning as the term "group" in
Section 13(d)(3) of the Exchange Act.

                  (j) "Option Shares" shall mean shares of Common Stock that are
subject to the Option.

                  (k) "Person" shall have the meaning given to it in Sections
3(a)(9) and 13(d)(3) of the Exchange Act.

                  (l) "Securities Act" shall mean the Securities Act of 1933, as
amended.

                  (m) "Significant Subsidiary" shall have the meaning given to
it in Rule 1.02 of Regulation S-X of the Securities and Exchange Commission.

         2. GRANT OF OPTION. Subject to the terms and conditions set forth in
this Agreement, CoBancorp hereby grants to FirstMerit an unconditional,
irrevocable option (the "Option") to purchase from time-to-time from CoBancorp
up to 19.9% of its Capital Stock (without giving effect to any shares subject to
or issued pursuant to this Agreement), in shares of Common Stock (subject to
adjustment hereafter pursuant to Section 7), free and clear of all liens,
claims, charges, and encumbrances of any kind, at a purchase price per share
(the "Purchase Price") equal to $40 per share.

         3.  EXERCISE OF OPTION.

                  (a) Following the occurrence of a Purchase Event, FirstMerit
may exercise the Option, in whole or in part, at any time and from time to time
prior to the expiration of the right to exercise the Option (as provided in
Section 3(c)); except that (i) FirstMerit may not exercise the Option if, at the
time of exercise, it is in material breach of any term, condition, covenant,
representation or warranty of or contained within the Merger Agreement, and (ii)
any purchase of Option Shares upon exercise of the Option shall be subject to
compliance with applicable law, including the BHC Act and the regulations of the
Federal Reserve promulgated thereunder.

                  (b) As used herein, a "Purchase Event" means any of the
following events that occur after the date of this Agreement:

                           (i) CoBancorp or any subsidiary of CoBancorp, any of
         their officers, directors, or authorized representatives or agents,
         without the prior written consent of FirstMerit, shall have authorized,
         recommended, or proposed, shall have publicly announced an intention to
         authorize, recommend, or propose, or shall have entered into an
         agreement to effect (a) a merger, consolidation or other business
         combination involving CoBancorp or any of its Significant Subsidiaries
         with or into any person (other than a merger, consolidation, joint
         venture, or other business combination with or into FirstMerit or any
         subsidiary of FirstMerit, or a merger or consolidation of any
         subsidiary of

                                        2


<PAGE>   5



         CoBancorp with or into CoBancorp or any other subsidiary of CoBancorp),
         (b) a sale, lease, or other disposition of assets or earning power of
         CoBancorp or any of its subsidiaries, in one or more transactions,
         representing 20% or more of the consolidated assets or earning power of
         CoBancorp and its subsidiaries to any person (other than FirstMerit or
         any subsidiary of FirstMerit), or (c) an issuance, sale, or other
         disposition (whether by means of a merger, consolidation, share
         exchange, or other transaction) of securities representing 20% or more
         of the voting power of CoBancorp or any of its Significant Subsidiaries
         to any person (other than FirstMerit or any subsidiary of FirstMerit)
         (any of the foregoing being an "Acquisition Transaction;" except that,
         if FirstMerit has given its prior written consent to any such
         transaction (which consent may be unreasonably withheld for any or no
         reason), the transaction as to which FirstMerit has given its prior
         written consent shall not be an "Acquisition Transaction");

                           (ii) any person (other than FirstMerit or any
         subsidiary of FirstMerit) shall have commenced (as such term is defined
         in Rule 14d-2 under the Exchange Act), or shall have filed a
         registration statement under the Securities Act with respect to, a
         tender offer or exchange offer to acquire shares of Capital Stock such
         that, upon consummation of the offer, such person would beneficially
         own 25% or more of the capital stock then outstanding;

                           (iii) any person (other than FirstMerit or any
         subsidiary of FirstMerit, any subsidiary of CoBancorp in a fiduciary
         capacity in the ordinary course of such subsidiary's business, any
         employee benefit plan or employee stock ownership plan of CoBancorp or
         any subsidiary of CoBancorp, or any person organized, appointed, or
         established by CoBancorp or any subsidiary of CoBancorp for or pursuant
         to the terms of any such plan), alone or together with such person's
         Affiliates, shall have acquired beneficial ownership of 20% or more of
         the Capital Stock then outstanding, or any group (other than a group of
         which FirstMerit or any subsidiary of FirstMerit, any subsidiary of
         CoBancorp in a fiduciary capacity in the ordinary course of such
         subsidiary's business, any employee benefit plan or employee stock
         ownership plan of CoBancorp or any subsidiary of CoBancorp, or any
         person organized, appointed, or established by CoBancorp or any
         subsidiary of CoBancorp for or pursuant to the terms of any such plan
         is a member) shall have been formed, as reasonably determined in good
         faith by the Board of Directors of FirstMerit, that beneficially owns
         20% or more of the Capital Stock (if any) then outstanding; or

                           (iv) the holders of Common Stock shall not have
         approved the Merger Agreement at the meeting of such stockholders (or
         any adjournment or postponement thereof) held for the purpose of voting
         on the Merger Agreement, such meeting shall not have been held or shall
         have been canceled (and not rescheduled) prior to termination of the
         Merger Agreement, or CoBancorp's Board of Directors shall have
         withdrawn or modified in a manner adverse to FirstMerit the
         recommendation of CoBancorp's Board of Directors that CoBancorp's
         stockholders vote in favor of and approve the Merger and

                                        3


<PAGE>   6



         adopt the Merger Agreement, in each case after any person (other than
         FirstMerit or any subsidiary of FirstMerit) shall, after the date of
         this Agreement, have (a) publicly announced a bona fide proposal, or
         publicly disclosed a bona fide intention to make a bona fide proposal,
         to engage in an Acquisition Transaction (or CoBancorp shall have
         publicly disclosed receipt of such a proposal) or (b) filed an
         application or given a notice, whether in draft or final form, under
         the BHC Act or the Change in Bank Control Act of 1978 for approval to
         engage in an Acquisition Transaction.

                  (c) Except as provided in the last sentence of this Section
3(c) and in Section 8(c), the right to exercise the Option shall terminate upon
the earliest to occur of (i) the Effective Time, (ii) 12 months after the first
occurrence of a Purchase Event, and (iii) termination of the Merger Agreement in
accordance with its terms prior to the occurrence of a Purchase Event. The
rights set forth in Sections 9 and 11 shall not terminate when the right to
exercise the Option terminates, but shall extend to such time as is provided in
Sections 9 or 11, respectively. Notwithstanding the termination of the right to
exercise the Option, FirstMerit shall be entitled to purchase those Option
Shares with respect to which it has exercised the Option prior to termination of
the right to exercise the Option.

                  (d) In the event FirstMerit wishes to exercise the Option, it
shall send to CoBancorp a written notice (the date on which the notice is sent
being herein referred to as the "Notice Date") specifying (i) the number of
Option Shares that it intends to purchase pursuant to such exercise and (ii) a
place and date not earlier than seven business days nor later than 15 business
days from the Notice Date for the closing of such purchase (the "Closing Date").
Notwithstanding the foregoing, if the closing of such purchase cannot be
consummated by reason of any applicable judgment, decree, order, law, or
regulation, the Closing Date shall be extended and occur not earlier than three
business days nor later than 15 business days after such restriction on
consummation has expired or been terminated. If prior notification to or
approval by the Federal Reserve or any other regulatory authority is required in
connection with such purchase and sale, FirstMerit shall promptly file and
expeditiously process the notice or application for approval (and CoBancorp
shall cooperate with FirstMerit in the filing and processing thereof), and the
Closing Date shall be extended and occur not earlier than three business days
nor later than 15 business days after the date on which (x) any required
notification period has expired or been terminated or (y) such approval has been
obtained, as the case may be, and, in either event, any requisite waiting period
has expired.

                  (e) Notwithstanding Section 3(d), in no event shall any
Closing Date be more than 18 months after the Notice Date, and, if the Closing
Date has not occurred within 18 months after the related Notice Date due to the
failure to obtain any required approval by the Federal Reserve or any other
regulatory authority, the exercise of the Option on the Notice Date shall be
deemed to have been rescinded. In the event (i) FirstMerit receives official
notice that an approval of the Federal Reserve or any other regulatory authority
required for the purchase and sale of the Option Shares will not be issued or
granted or (ii) a Closing Date has not occurred within 18 months after the
related Notice Date due to the failure to obtain any such required approval,
FirstMerit shall

                                        4


<PAGE>   7



be entitled to exercise the Option in connection with the resale of the Option
Shares pursuant to a registration statement as provided in Section 10.

         4. PAYMENT AND DELIVERY OF CERTIFICATES.

                  (a) On each Closing Date, FirstMerit shall pay to CoBancorp in
immediately available funds, by wire transfer to a bank account designated by
CoBancorp, an amount equal to the Purchase Price multiplied by the number of
Option Shares to be purchased on the Closing Date.

                  (b) On each Closing Date, simultaneous with the delivery of
immediately available funds as provided in Section 4(a), CoBancorp shall deliver
to FirstMerit a certificate or certificates representing the Option Shares being
purchased, and FirstMerit shall deliver to issuer a letter in which FirstMerit
agrees not to sell or otherwise dispose of such Option Shares in violation of
applicable law or the provisions of this Agreement.

                  (c) Certificates for the Option Shares shall be endorsed with
a restrictive legend substantially as follows:

         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 THE STOCK PURCHASE OPTION DATED AS OF NOVEMBER
         3, 1997. A COPY OF SUCH AGREEMENT WILL BE PROVIDED TO THE HOLDER HEREOF
         WITHOUT CHARGE UPON RECEIPT BY COBANCORP OF A WRITTEN REQUEST THEREFOR.

It is understood and agreed that the reference in the foregoing legend to
restrictions arising under the Securities Act shall be removed, by delivery of a
substitute certificate or certificates without such reference, if FirstMerit
delivers to CoBancorp a copy of an opinion of counsel in form and substance
reasonably satisfactory to CoBancorp, to the effect that an exemption is
available for the transaction under the Securities Act.

         5. REPRESENTATIONS AND WARRANTIES OF COBANCORP. CoBancorp hereby
represents and warrants to FirstMerit as follows:

                  (a) DUE AUTHORIZATION. CoBancorp has all requisite corporate
power and authority to enter into this Agreement and, subject to obtaining the
approvals, if any, contemplated by this Agreement or required by law, to
consummate the transactions contemplated by this Agreement. 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 CoBancorp. This Agreement has been duly executed and delivered by CoBancorp
and constitutes a valid and binding obligation of CoBancorp, enforceable against
CoBancorp in accordance with its terms.

                                        5


<PAGE>   8



                  (b) AUTHORIZED STOCK. CoBancorp has heretofore taken, and
until termination of the right to exercise the option shall hereafter take, all
corporate and other action necessary to authorize and reserve, and, subject to
obtaining the governmental and other approvals and consents contemplated by this
Agreement and as may be required by law, to permit it to issue, all of the
Option Shares, including any additional shares of Common Stock, that may be
issued pursuant to Section 7. The Option Shares, including any such additional
shares of Common Stock, 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, including any
preemptive rights of any stockholder of CoBancorp.

                  CoBancorp will not, by charter amendment or otherwise, avoid
or seek to avoid the observance or performance of any of its obligations or
representations in this Agreement.

                  (c) NO CONFLICTS. Except as disclosed pursuant to the Merger
Agreement, the execution and delivery of this Agreement does not, and the
consummation of the transactions contemplated hereby will not, conflict with, or
result in a violation of or default under, (i) any provision of the corporate
governance documents of CoBancorp or any subsidiary of CoBancorp or (ii),
subject to obtaining the approvals, if any, contemplated by this Agreement or
required by law, any loan or credit agreement, note, mortgage, indenture, lease,
or other agreement, obligation, instrument, permit, concession, franchise,
license, judgment, order, decree, statute, law, ordinance, rule, or regulation
applicable to CoBancorp or any subsidiary of CoBancorp or their respective
properties or assets, which conflict, violation, or default would have a
material adverse effect on CoBancorp.

         6. REPRESENTATIONS AND WARRANTIES OF FIRSTMERIT. FirstMerit hereby
represents and warrants to CoBancorp that:

                  (a) DUE AUTHORIZATION. FirstMerit has all requisite corporate
power and authority to enter into this Agreement and, subject to obtaining the
approvals referred to in this Agreement, to consummate the transactions
contemplated by this Agreement. 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 FirstMerit. This
Agreement has been duly executed and delivered by FirstMerit and constitutes a
valid and binding obligation of FirstMerit, enforceable against FirstMerit in
accordance with its terms.

                  (b) NO CONFLICTS. The execution and delivery of this Agreement
does not, and the consummation of the transactions contemplated hereby will not,
conflict with, or result in a violation of or default under, (i) any provision
of the Articles of Incorporation or Code of Regulations of FirstMerit or any
subsidiary of FirstMerit or (ii), subject to obtaining the approvals referred to
in this Agreement or required by law, any loan or credit agreement, note,
mortgage, indenture, lease, or other agreement, obligation, instrument, permit,
concession, franchise, license, judgment, order, decree, statute, law,
ordinance, rule, or regulation applicable to FirstMerit or any subsidiary of
FirstMerit or their respective properties or assets, which conflict, violation,
or default would have a material adverse effect on FirstMerit.

                                        6


<PAGE>   9



                  (c) PURCHASE NOT FOR DISTRIBUTION. Any Option Shares acquired
by FirstMerit upon exercise of the Option will not be taken 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
Securities Act.

         7.   ADJUSTMENT UPON CHANGES IN CAPITALIZATION, ETC.

                  (a) In the event of any change in the Common Stock by reason
of a stock dividend, 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, and proper provision shall be made in the agreements governing
any such transaction, so that FirstMerit shall receive upon exercise of the
Option the number and class of shares, other securities or property that
FirstMerit would have received in respect of the Option Shares if the Option had
been exercised and the Option Shares had been issued to FirstMerit immediately
prior to such event or the record date therefor, as applicable.

                  (b) In the event that CoBancorp enters into an agreement (i)
to consolidate with or merge into any person (other than FirstMerit or any
subsidiary of FirstMerit), and CoBancorp shall not be the continuing or
surviving corporation of such consolidation or merger, (ii) pursuant to which
any person (other than FirstMerit or any subsidiary of FirstMerit) shall merge
into CoBancorp, and CoBancorp shall be the continuing or surviving corporation,
but outstanding shares of Common Stock shall be changed into or exchanged for
stock, other securities, property, or cash, or (iii) to sell, lease, or
otherwise transfer assets of CoBancorp or any of its subsidiaries, in one or
more transactions, representing more than 50% of the consolidated assets or
earning power of CoBancorp and its subsidiaries to any person (other than
FirstMerit or any subsidiary of FirstMerit), then, and in each such case, the
agreement governing such transaction shall make proper provisions so that upon
the consummation of any such transaction and upon the terms and conditions set
forth herein, FirstMerit may, in its discretion, convert the Option into the
right to receive, at the election of FirstMerit, either from the Acquiring
Corporation or from any person that controls the Acquiring Corporation, or
CoBancorp in the case of a merger described in clause (ii), the number and class
of shares, other securities or property that FirstMerit would have received in
respect of the Option Shares if the Option had been exercised and the Option
Shares had been issued to FirstMerit immediately prior to the consummation of
such transaction, the distribution of the proceeds thereof to CoBancorp's
stockholders, or the record date therefor, as applicable.

                  (c) For purposes of this Agreement, "Acquiring Corporation"
means (i) the continuing or surviving corporation in a merger or consolidation
involving CoBancorp in which CoBancorp is not the continuing or surviving
corporation, (ii) CoBancorp in a merger in which CoBancorp is the continuing or
surviving corporation in a transaction described in Section 7(b)(ii), and (iii)
the transferee of more than 50% of the consolidated assets or earning power of
CoBancorp and its subsidiaries. The provisions of Sections 7 through 12 shall
apply with appropriate adjustments to any securities for which the Option
becomes exercisable pursuant to this Section 7.

                                        7


<PAGE>   10



         8. REPURCHASE OF OPTION AT REQUEST OF FIRSTMERIT.

                  (a) At the request of FirstMerit at any time during the period
beginning upon the first occurrence of a Repurchase Event and ending 12 months
thereafter, CoBancorp shall repurchase from FirstMerit the Option (unless the
Option shall have expired or been terminated) and all shares of Common Stock,
purchased by FirstMerit upon exercise of the Option that are beneficially owned
by FirstMerit at the Request Date. The date on which FirstMerit requests that
CoBancorp repurchase the Option or Option Shares under this Section 8 is
referred to as the "Request Date". Such repurchase shall be at an aggregate
price (the "Put Consideration") equal to the sum of:

                           (x) the aggregate Purchase Price paid by FirstMerit
         for all shares of Common Stock, if any, purchased upon exercise of the
         Option that are beneficially owned by FirstMerit on the Request Date;

                           (y) the excess, if any, of the Applicable Price (as
         defined below) over the Purchase Price paid by FirstMerit for each
         share of Common Stock with respect to which the Option has been
         exercised that are beneficially owned by FirstMerit on the Request
         Date, multiplied by the number of such shares; and

                           (z) the excess, if any, of the Applicable Price over
         the Purchase Price (adjusted pursuant to Section 7), multiplied by the
         number of Option Shares with respect to which the Option has not been
         exercised; provided that, in the case of Option Shares with respect to
         which the Option has been exercised but the Closing Date has not
         occurred, the Closing Date shall be suspended and the Option shall be
         treated, for purposes of this clause (z), as if it had not been
         exercised.

                  (b) If FirstMerit exercises its rights under this Section 7,
CoBancorp shall, within 10 business days after the Request Date, pay the Put
Consideration to FirstMerit in immediately available funds, by wire transfer to
a bank account designated by FirstMerit; FirstMerit shall, against receipt of
the payment therefor, surrender to CoBancorp the Option and the certificates
evidencing the shares of Common Stock, if any, purchased upon exercise of the
Option that are beneficially owned by FirstMerit on the Request Date; and
FirstMerit shall warrant that it has sole record and beneficial ownership of
such shares, free and clear of all liens, claims, charges, and encumbrances of
any kind.

         Notwithstanding the foregoing, if CoBancorp is prohibited from
repurchasing the Option or any or all Option Shares or from paying all or any
portion of the Put Consideration by reason of any applicable judgment, decree,
order, law, or regulation, CoBancorp shall immediately repurchase or pay that
portion of the Option and Option Shares or Put Consideration that it is not
prohibited from repurchasing or paying, shall from time to time thereafter
immediately repurchase or pay such further portion of the Put Consideration that
it is not then prohibited from repurchasing or paying, and, in all cases, shall
pay the balance of the Option and Option Shares

                                        8


<PAGE>   11



or Put Consideration within 10 business days after such prohibition has expired
or been terminated. Upon receipt of a partial payment of the Put Consideration,
FirstMerit shall surrender a portion of the Option and/or Option Shares, as
selected by FirstMerit, corresponding (as closely as practicable) to the portion
of the Put Consideration received by FirstMerit.

         If prior notification to or approval by the Federal Reserve or any
other regulatory authority is required in connection with the payment of all or
any portion of the Put Consideration, CoBancorp shall pay from time to time that
portion of the Put Consideration that it is not prohibited from paying and shall
promptly file and expeditiously process the required notice or application for
approval (and FirstMerit shall cooperate with CoBancorp in the filing of any
such notice or application and the obtaining of any such approval), and
CoBancorp shall pay the Put Consideration within 10 business days after the date
on which, as the case may be, (i) any required notification period has expired
or been terminated or (ii) such approval has been obtained.

                  (c) If the Federal Reserve or any other regulatory authority
disapproves of the repurchase by CoBancorp of all or any part of the Option or
Option Shares pursuant to this Section 8, CoBancorp shall promptly give notice
of such disapproval to FirstMerit, and FirstMerit shall have the right to
exercise the Option as to the number of Option Shares for which the Option was
exercisable at the Request Date less the number of shares as to which payment
has been made. If the Option shall have terminated prior to the date of such
notice or shall be scheduled to terminate at any time before the expiration of a
period ending on the thirtieth business day after the date of such notice,
FirstMerit shall nevertheless have the right so to exercise the Option or
exercise its right under Section 11 until the expiration of such period of 30
business days. Notwithstanding anything herein to the contrary, CoBancorp shall
not be obligated to repurchase the Option or any Option Shares on more than one
occasion.

                  (d) For purposes of this Agreement, the "Applicable Price"
means the highest of (i) the highest price per share to be paid by any person
(other than FirstMerit or one of its subsidiaries) for shares of Common Stock or
the highest consideration per share to be received by holders of Common Stock,
in each case pursuant to an agreement for a merger, consolidation, joint
venture, or other business combination with CoBancorp entered into after the
date hereof and on or prior to the Request Date, (ii) the highest closing sales
price per share of Common Stock reported on the National Market System of the
National Association of Securities Dealers Automated Quotation System ("Nasdaq")
(or, if transactions in Common Stock are not reported on Nasdaq, the highest bid
price quoted on the principal trading market on which the Common Stock is traded
as reported by a recognized source) during the 60 business days preceding the
Request Date, and (iii) in the event of the sale by CoBancorp or its
subsidiaries, in one or more transactions, of assets or earning power
aggregating more than 50% of the consolidated assets or earning power of
CoBancorp and its subsidiaries to any person (other than FirstMerit or any
subsidiary of FirstMerit), the sum of the price paid for such assets or earning
power and the current value of the remaining assets of CoBancorp and its
subsidiaries divided by the number of 




                                       9
<PAGE>   12

shares of Common Stock outstanding at the time of the sale. The value of any
consideration other than cash that is offered, paid, or received pursuant to
clauses (i) or (iii) of this Section 8(d), and the value of the remaining assets
of CoBancorp and its subsidiaries referred to in clause (iii), shall be
determined in good faith by an independent nationally recognized investment
banking firm mutually acceptable to FirstMerit and CoBancorp, which
determination shall be conclusive for all purposes of this Agreement.

                  (e) As used herein, a "Repurchase Event" means the
consummation of an Acquisition Transaction, provided, that, the percentage for
purposes of Section 3(b)(i)(b) shall be 50% and the percentages for purposes of
Section 3(b)(i)(c) shall be 40%.

                  (f) Notwithstanding anything in this Agreement to the
contrary, the Put Consideration payable to FirstMerit, determined in accordance
with Subsection (a) of this Section, shall be adjusted so that in no event will
the aggregate Put Consideration payable to FirstMerit pursuant to the terms of
this Section 8 exceed the aggregate Purchase Price paid by FirstMerit pursuant
to the Option, plus $5,000,000.

         9. REPURCHASE OF OPTION AT REQUEST OF COBANCORP.

                  (a) Except to the extent that FirstMerit shall have previously
exercised its rights under Section 8, at the request of CoBancorp during the
six-month period commencing 12 months following the first occurrence of a
Repurchase Event, CoBancorp may repurchase from FirstMerit, and FirstMerit shall
sell to CoBancorp, all (but not less than all) of the shares of Common Stock
purchased by FirstMerit upon exercise of the Option that are beneficially owned
by FirstMerit on the Call Date at a price (the "Call Consideration") equal to
the greater of (x) 110% of the Current Market Price and (y) the sum of (a) the
Purchase Price paid by FirstMerit for such shares plus (b) FirstMerit's pretax
per share carrying cost, multiplied in either case by the number of 
shares being repurchased. The date on which CoBancorp requests that FirstMerit
sell the Option Shares under this Section 9 is referred to as the "Call Date."

                  Notwithstanding the foregoing, FirstMerit may, within 30 days
following CoBancorp's notice of its intention to purchase shares pursuant to
this Section 9, deliver an Offeror's Notice pursuant to Section 11, in which
case the provisions of Section 11 and not those of this Section 9 shall control.
Notwithstanding any contrary provision of this Section 9, CoBancorp's rights
under this Section 9 shall be suspended (with any such rights being extended
accordingly) during any period in which the exercise of such rights would
subject FirstMerit to liability pursuant to Section 16(b) of the Exchange Act.

                  (b) If CoBancorp exercises its rights under this Section 9 and
FirstMerit does not deliver an Offeror's Notice or sell shares of Common Stock
to a third party pursuant to the Offeror's Notice, CoBancorp shall, within 10
business days after the thirtieth day following CoBancorp's notice of its
intention to purchase shares pursuant to this Section 9 or, if applicable,
within 10 business days after abandonment of the transaction covered by the
Offeror's Notice, pay 



                                       10
<PAGE>   13

the Call Consideration in immediately available funds, by wire transfer to a
bank account designated by FirstMerit; FirstMerit shall surrender to CoBancorp
the certificates evidencing the shares of Common Stock purchased upon exercise
of the option that are beneficially owned by FirstMerit on the Call Date; and
FirstMerit shall warrant that it has sole record and beneficial ownership of
such shares, free and clear of all liens, claims, charges, and encumbrances of
any kind.

                  (c) As used herein, (i) "Current Market Price" means the
average closing sales price per share of Common Stock reported on Nasdaq (or if
the Common Stock is not reported on Nasdaq, the highest bid price quoted on the
principal trading market on which such shares are traded as reported by a
recognized source) for the 10 business days preceding the Call Date, and (ii)
"FirstMerit's pretax per share carrying cost" shall be the amount equal to the
interest on the aggregate Purchase Price paid for the shares of Common Stock
being repurchased pursuant to this Section 9 from the date of purchase to the
date of repurchase at the rate of interest announced by CoBancorp as its prime
or base lending or reference rate during such period, less any dividends
received on the shares being repurchased, divided by the number of shares being
repurchased.

         10. REGISTRATION RIGHTS. If requested by FirstMerit at any time and
from time to time within (a) the period beginning upon the first exercise of the
Option and ending 18 months thereafter or (b) the period beginning upon the
occurrence of either of the events set forth in clauses (i) and (ii) of Section
3(e), or the receipt by FirstMerit of official notice that an approval of the
Federal Reserve or any other regulatory authority required for a repurchase
pursuant to Section 8(c) will not be issued or granted, and ending 30 business
days thereafter (but solely as to shares of Common Stock with respect to which
the required approval was not received), CoBancorp shall prepare and file a
registration statement under the Securities Act, if such registration is
necessary, in order to permit the sale or other disposition of any or all shares
of Common Stock or other securities that have been purchased by or are issuable
to FirstMerit upon exercise of the Option in accordance with the intended method
of sale or other disposition stated by FirstMerit, including, if applicable, a
"shelf" registration statement under Rule 415 under the Securities Act or any
successor provision, and CoBancorp shall use its best efforts to qualify such
shares or other securities under any applicable state securities laws.

         FirstMerit shall use all reasonable efforts to cause, and to cause any
underwriters of any sale or other disposition to cause, any sale or other
disposition pursuant to registration statement to be effected on a widely
distributed basis. CoBancorp shall use all reasonable efforts to cause such
registration statement to become effective, to obtain all consents or waivers of
other parties that are required therefor, and to keep such registration
statement effective for such period (not in excess of 180 days from the day such
registration statement first becomes effective) as may be reasonably necessary
to effect such sale or other disposition. In the event that FirstMerit requests
CoBancorp to file a registration statement following the failure to obtain an
approval required for an exercise of the Option as described in Section 3(e),
the closing of the sale or other disposition of Common Stock pursuant to such
registration statement shall occur substantially simultaneously with the
exercise of the Option.


                                       11
<PAGE>   14


         The obligations of CoBancorp hereunder to file a registration statement
and to maintain its effectiveness may be suspended for one or more periods of
time not exceeding 90 days in the aggregate if the Board of Directors of
CoBancorp determines that the filing of such registration statement or the
maintenance of its effectiveness would require disclosure of non-public
information that would materially and adversely affect CoBancorp. Any
registration statement prepared and filed under this Section 10, and any sale
covered thereby, shall be at CoBancorp's expense, except for underwriting
discounts or commissions, brokers' fees, and the fees and disbursements of
FirstMerit's counsel related thereto. FirstMerit shall provide all information
reasonably requested by CoBancorp for inclusion in any registration statement to
be filed hereunder, and shall make all necessary representations and warranties
with respect to the accuracy and completeness thereof and shall hold CoBancorp
harmless with respect to any liability therefor.

         If, during the time periods referred to in the first sentence of this
Section 10, CoBancorp effects a registration under the Securities Act of any
Common Stock for its own account or for the account of any stockholder of
CoBancorp (other than a registration on Form S-4, Form S-8, or any successor
form), CoBancorp shall afford FirstMerit the right to participate in such
registration, and such participation shall not affect the obligation of
CoBancorp to effect the registration statement for FirstMerit under this Section
10; provided that, if the managing underwriters of such offering advise
CoBancorp in writing that, in their opinion, the number of shares of Common
Stock requested to be included in such registration exceeds the number that can
be sold in such offering, CoBancorp shall include the shares requested to be
included in the offering by FirstMerit pro rata with the shares intended to be
included in the offering by CoBancorp. In connection with the registration
pursuant to this Section 10, CoBancorp and FirstMerit shall provide each other
and any underwriter of the offering with customary representations, warranties,
covenants, indemnification, and contribution in connection with such
registration.

         11. FIRST REFUSAL. At any time after the first occurrence of a Purchase
Event and prior to the later of (a) the expiration of 24 months following the
first purchase of shares of Common Stock upon exercise of the Option and (b) the
termination of the right to exercise the Option pursuant to Section 3(c), if
FirstMerit desires to sell, assign, transfer, or otherwise dispose of all or any
of the shares of Common Stock or other securities purchased by it upon exercise
of the Option, FirstMerit shall give CoBancorp written notice of the proposed
transaction (an "Offeror's Notice"), identifying the proposed transferee,
accompanied by a copy of a binding offer to purchase such shares or other
securities signed by such transferee and setting forth the terms of the proposed
transaction. An Offeror's Notice shall be deemed an offer by FirstMerit to
CoBancorp, which may be accepted within 10 business days after receipt of such
Offeror's Notice by CoBancorp, to sell such shares or other securities to
CoBancorp on the same terms and conditions and at the same price as those set
forth in the Offeror's Notice for the proposed transaction. The purchase of any
such shares or other securities by CoBancorp shall be settled within 10 business
days of the date of the acceptance of the offer by CoBancorp, and the purchase




                                       12
<PAGE>   15


price shall be paid to FirstMerit in immediately available funds.
Notwithstanding the foregoing, if prior notification to or approval by the
Federal Reserve or any other regulatory authority is required in connection with
such purchase, CoBancorp shall promptly file and expeditiously process the
required notice or application for approval (and FirstMerit shall cooperate with
CoBancorp in the filing of any such notice or application and the obtaining of
any such approval), and the purchase of such shares or other securities by
CoBancorp shall be settled within 10 business days after the date on which, as
the case may be, (a) any required notification period has expired or been
terminated or (b) such approval has been obtained.

         In the event of the failure or refusal of CoBancorp to purchase all the
shares or other securities covered by an Offeror's Notice, or if the Federal
Reserve or any other regulatory authority disapproves of CoBancorp's proposed
purchase of such shares or other securities, FirstMerit may thereafter sell such
shares to the proposed transferee at no less than the price specified and on
terms no more favorable than those set forth in the Offeror's Notice. The
requirements of this Section 11 shall not apply to (x) any disposition as a
result of which the proposed transferee will purchase or acquire in such
transaction not more than 2% of the outstanding Common Stock, (y) any sale by
means of a public offering registered under the Securities Act in which steps
are taken to reasonably ensure that no purchaser will purchase or acquire more
than 2% of the outstanding Common Stock, or (z) any transfer to a wholly-owned
subsidiary of FirstMerit that agrees in writing to be bound by the terms hereof.

         12. LISTING. If shares of Common Stock or any other securities to be
acquired upon exercise of the Option are quoted on Nasdaq, CoBancorp, at the
request of FirstMerit, will thereafter, use reasonable efforts to cause the
Common Stock to continue to be so quoted.

         13. DIVISION OF OPTION. This Agreement (and the Option granted hereby)
are exchangeable, without expense, at the option of FirstMerit, upon
presentation and surrender of this Agreement at the principal office of
CoBancorp, for other Agreements providing for options of different denominations
entitling the Holder thereof to purchase in the aggregate the same number of
shares of 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
CoBancorp 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 (in the case of
mutilation) upon surrender and cancellation of this Agreement, CoBancorp will
execute and deliver a new Agreement of like tenor and date. Any such new
Agreement, when executed and delivered, shall constitute an additional
contractual obligation on the part of CoBancorp, whether or not the Agreement so
lost, stolen, destroyed, or mutilated shall at any time be enforceable by
anyone.

         14. FIRSTMERIT'S BREACH. Notwithstanding anything to the contrary
contained herein, all of CoBancorp's obligations under this Agreement shall be
terminated and the Option shall not be exercisable if the Merger Agreement has
been terminated and FirstMerit was in material breach 



                                       13
<PAGE>   16

of any term, condition, covenant, representation or warranty of or contained
within the Merger Agreement when it was terminated; provided, however, that
CoBancorp may not assert, for purposes of this Section 14 only, a material
breach of the Merger Agreement by FirstMerit if FirstMerit terminated the Merger
Agreement pursuant to the terms of the Merger Agreement and CoBancorp failed to
notify FirstMerit, upon FirstMerit's written request prior to termination, of
the material breach; provided, further, however, that CoBancorp may not assert,
for purposes of this Section 14 only, a material breach of the Merger Agreement
by FirstMerit if CoBancorp terminated the Merger Agreement pursuant to the terms
of the Merger Agreement and all material breaches by FirstMerit were curable,
unless CoBancorp provided written notice to FirstMerit of the material breaches
and an opportunity to cure as soon as reasonably practicable.

         15.  MISCELLANEOUS.

                  (a) EXPENSES. Except as otherwise provided in Section 10, each
of the parties hereto shall bear and pay all 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 AMENDMENT. Any provision of this Agreement may
be waived at any time by the party that is entitled to the benefits of such
provision, but such waiver shall only be effective if in writing and signed by
the party 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. Except as otherwise set forth in the Merger Agreement, this
Agreement, the Merger Agreement, and the other documents and instruments
referred to therein and herein (a) constitute the entire agreement and
understanding, and supersede all prior agreements and understandings, both
written and oral, between the parties with respect to their subject matter and
(b) are not intended to confer upon any person other than the parties hereto any
rights or remedies. If any term, 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 other terms,
provisions, covenants, and restrictions of this Agreement shall remain in full
force and effect and shall not be affected, impaired, or invalidated. If for any
reason such court or regulatory agency determines that the Option does not
permit FirstMerit to acquire, or does not require CoBancorp to repurchase, the
full number of shares of Common Stock as provided in Sections 3 and 8 (as
adjusted pursuant to Section 7), it is the express intention of CoBancorp to
allow FirstMerit to acquire, or to require CoBancorp to repurchase, such lesser
number of shares as may be permissible without any amendment or modification
hereof.

                  (d) GOVERNING LAW. This Agreement shall be governed and
construed in accordance with the laws of the State of Ohio without regard to any
applicable conflicts of law rules.


                                       14
<PAGE>   17

                  (e) DESCRIPTIVE HEADINGS. The descriptive 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 as shall be specified by like notice):
<TABLE>
<CAPTION>

         TO COBANCORP:                                        TO FIRSTMERIT:
<S>                                                         <C>
         John S. Kreighbaum, Chairman,                        John R. Cochran, President and
         President and Chief Executive Officer                Chief Executive Officer
         CoBancorp Inc.                                       FirstMerit Corporation
         1530 West River Road, North                          III Cascade Plaza, 7th Floor
         Elyria, Ohio 44035                                   Akron, Ohio  44308

         WITH A COPY TO:                                      WITH COPIES TO:

         Barry P. Taff and                                    Terry E. Patton, Senior Vice President
         Christopher R. Kelly               .                 and Secretary
         Silver, Freedman & Taff                              FirstMerit Corporation
         1100 New York Ave., N.W.                             III Cascade Plaza, 7th Floor
         Suite 700                                            Akron, Ohio  44308
         Washington, DC 20005-3934

                                                              Philip A. Lloyd II
                                                              and Kevin C. O'Neil
                                                              Brouse & McDowell
                                                              500 First National Tower
                                                              Akron, Ohio 44308
</TABLE>

                  (g) COUNTERPARTS. This Agreement and any 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 by each of the parties and delivered to the other party, 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. 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.


                                       15
<PAGE>   18

                  (i) FURTHER ASSURANCES. In the event of any exercise of the
Option by FirstMerit, CoBancorp and FirstMerit 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. This Agreement may be enforced by
either party through specific performance, injunctive relief, and other
equitable relief. Both parties hereby waive any requirement for the securing or
posting of any bond in connection with the obtaining of any such equitable
relief and agree that this provision is without prejudice to any other rights
that the parties hereto may have for any failure to perform this Agreement. Both
parties acknowledge that damages would be an inadequate remedy for a breach of
this Agreement by either party.

                            [Signature Page is Next]


                                       16
<PAGE>   19


         IN WITNESS WHEREOF, CoBancorp and FirstMerit have caused this Agreement
to be signed by their respective officers thereunto duly authorized, all as of
the day and year first written above.

                                                 FirstMerit Corporation

Attest:

/S/ TERRY E. PATTON                              By: /S/ JOHN R.  COCHRAN
- ------------------------------                      ---------------------------
Terry E. Patton, Secretary                       John R. Cochran, President and
                                                 Chief Executive Officer

[KCO:2010651.]

                                 ACKNOWLEDGMENT

STATE OF OHIO                       )
                                    ) SS:
COUNTY OF SUMMIT                    )

         BE IT REMEMBERED that on this 3rd day of November, 1997, personally
came before me, a Notary Public in and for the State and County aforesaid, John
R. Cochran, President and Chief Executive Officer, and Terry E. Patton, Senior
Vice President and Secretary of FirstMerit Corporation, an Ohio corporation, and
they duly executed this agreement before me and acknowledged it to be their act
and deed and the act and deed of said Corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and seal this 3rd day
of November, 1997.

                                             /S/ KEVIN C.  O'NEIL
                                             ----------------------------------
                                             Kevin C. O'Neil, Notary Public


<PAGE>   20


                                        CoBancorp Inc.
Attest:

/S/ LOIS E.  GUNNING                    By: /S/ JOHN S.  KREIGHBAUM
- -------------------------------            ------------------------------------
Lois E.  Gunning, Secretary             John S. Kreighbaum, Chairman,
                                        President and Chief Executive Officer



                                 ACKNOWLEDGMENT

STATE OF OHIO                       )
                                    ) SS:
COUNTY OF LORAIN                    )

         BE IT REMEMBERED that on this 3rd day of November, 1997, personally
came before me, a Notary Public in and for the State and County aforesaid, John
S. Kreighbaum, Chairman, President and Chief Executive Officer and Lois E.
Gunning, Secretary of CoBancorp Inc., an Ohio corporation, and they duly
executed this agreement before me and acknowledged it to be their act and deed
and the act and deed of said Corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and seal this 3rd day
of November, 1997.

                                           /S/ LINDA B.  PAVLICK
                                           ----------------------------------
                                           Notary Public






<PAGE>   1



                                  EXHIBIT 99






<PAGE>   2
                                                                    Exhibit 99

COBANCORP INC.

                                                     November 3, 1997
                                                     For immediate release
                                                     Contact: Lois E. Gunning
                                                     Corporate Secretary
                                                     CoBancorp Inc.
                                                     Elyria, Ohio 44035
                                                     (216) 284-6422

CoBancorp Inc. to be Acquired by FirstMerit Corporation

Elyria, Ohio - CoBancorp Inc. (NASDAQ: COBI), the holding company for
PREMIERBank & Trust and Jefferson Savings Bank, announced today the signing of a
definitive agreement to be acquired by FirstMerit Corporation (NASDAQ: FMER).

Under the terms of the agreement, each share of CoBancorp Inc. common stock will
be exchanged for $44.50 in cash or for shares of common stock of FirstMerit with
a market value per share of $44.50, based upon the market value of FirstMerit
common stock during a period prior to closing of the transaction, subject to
adjustment as provided for in the definitive agreement. CoBancorp shareholders
may elect to exchange their common stock for either common stock of FirstMerit,
or $44.50 in cash, provided that no less than 30 percent and no more than 49
percent of the total transaction value will be paid in cash.

In connection with the transaction, CoBancorp has provided FirstMerit with an
option to acquire up to 19.9 percent of its common stock under certain
conditions.

John S. Kreighbaum, Chairman, President and Chief Executive Officer of
CoBancorp, stated, "The merger of CoBancorp, which currently holds the dominant
market share position in Lorain County, with FirstMerit Corporation will create
the premier financial institution serving the Lorain County/Western Cleveland
market. CoBancorp's philosophy of providing exceptional community banking
services to the communities it serves is extremely compatible with that of
FirstMerit, which will provide both CoBancorp's and FirstMerit's customers the
same high level of service they have received in the past. Given FirstMerit's
greater financial resources, the combined institution will provide increased
access to more convenient and technologically advanced banking services. As a
result of the transaction, our shareholders should be provided significant value
enhancement, superior liquidity and continued access to excellent banking
services."

CoBancorp, headquartered in Elyria, Ohio, has approximately $602 million in
deposits and 39 branches in Ohio. FirstMerit Corporation is a $5.2 billion
holding company which operates 128 full-service banking offices and 153
automated teller machines within the state of Ohio.




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