Draft 5/5/96
                                                                    ------------


                                2,500,000 Shares

                             CRA Managed Care, Inc.

                                  Common Stock

                                ($.01 Par Value)


                             UNDERWRITING AGREEMENT
                             ----------------------


                                                                   May ___, 1996



Alex. Brown & Sons Incorporated
Dean Witter Reynolds Inc.
J.P. Morgan & Co.
Montgomery Securities
As Representatives of the
  Several Underwriters
c/o  Alex. Brown & Sons Incorporated
135 East Baltimore Street
Baltimore, Maryland 21202

Gentlemen:

  CRA Managed Care, Inc., a Massachusetts corporation (the "Company"), and
                                                            -------
certain shareholders of the Company (the "Selling Shareholders") propose to sell
                                          --------------------  
to the several underwriters (the "Underwriters") named in Schedule I hereto for
                                  ------------            ----------
whom you are acting as representatives (the "Representatives") an aggregate of
                                             --------------- 
2,500,000 shares of the Company's Common Stock, $.01 par value (the "Firm
                                                                     ----
Shares") , of which 1,100,000 shares will be sold by the Company and 1,400,000
- ------
shares will be sold by the Selling Shareholders. The respective amounts of the
Firm Shares to be so purchased by the several Underwriters are set forth
opposite their names in Schedule I hereto, and the respective amounts to be sold
                        ----------
by the Selling Shareholders are set forth opposite their names in Schedule II
                                                                  -----------
hereto. The Company and the Selling Shareholders are sometimes referred to
herein collectively as the "Sellers." Certain Selling Shareholders also propose
                            -------
to sell at the Underwriters' option an aggregate of up to 375,000 additional
shares of the Company's Common Stock (the "Option Shares") as set forth below.
                                           -------------

  As the Representatives, you have advised the Company and the Selling
Shareholders (a) that you are authorized to enter into this Agreement on behalf
of the several Underwriters, and (b) that the several Underwriters are willing,
acting severally and not jointly, to purchase the numbers of Firm Shares set
forth opposite their respective names in Schedule I, plus their pro rata portion
                                         ----------
of the Option Shares if you elect to exercise the over-allotment option in whole
or in part for the accounts of the

 
several Underwriters. The Firm Shares and the Option Shares (to the extent the
aforementioned option is exercised) are herein collectively called the "Shares."
                                                                        ------

  In consideration of the mutual agreements contained herein and of the
interests of the parties in the transactions contemplated hereby, the parties
hereto agree as follows:

     1.   Representations and Warranties of the Company and the Selling
          -------------------------------------------------------------
          Shareholders.
          ------------ 

          (a)  The Company represents and warrants to each of the Underwriters
     as follows:

          (i) A registration statement on Form S-3 (File No. 333-______) with
     respect to the Shares has been carefully prepared by the Company in
     conformity with the requirements of the Securities Act of 1933, as amended
     (the "Act"), and the Rules and Regulations (the "Rules and Regulations") of
           ---                                        ---------------------     
     the Securities and Exchange Commission (the "Commission") thereunder and
                                                  ----------                 
     has been filed with the Commission. The Company has complied with the
     conditions for the use of Form S-3. Copies of such registration statement,
     including any amendments thereto, the preliminary prospectuses (meeting the
     requirements of the Rules and Regulations) contained therein and the
     exhibits, financial statements and schedules, as finally amended and
     revised, have heretofore been delivered by the Company to you and, to the
     extent applicable, were identical to the electronically transmitted copies
     thereof filed with the Commission pursuant to the Commission's Electronic
     Data Gathering, Analysis and Retrieval System ("EDGAR"), except to the
                                                     -----                 
     extent permitted by Regulation S-T. Such registration statement, together
     with any registration statement filed by the Company pursuant to Rule 462
     (b) of the Act, herein referred to as the "Registration Statement," which
                                                ----------------------        
     shall be deemed to include all information omitted therefrom in reliance
     upon Rule 430A and contained in the Prospectus referred to below, has been
     declared effective by the Commission under the Act and no post-effective
     amendment to the Registration Statement has been filed as of the date of
     this Agreement. "Prospectus" means (a) the form of prospectus first fi led
                      ----------                                               

     by the Company with the Commission pursuant to Rule 424(b) and 430A or (b)
     the last preliminary prospectus included in the Registration Statement
     filed prior to the time it becomes effective or filed pursuant to Rule
     424(a) under the Act that is delivered by the Company to the Underwriters
     for delivery to purchasers of the Shares, together with the term sheet or
     abbreviated term sheet filed with the Commission pursuant to Rule 424(b)(7)
     under the Act. Each preliminary prospectus included in the Registration
     Statement prior to the time it becomes effective is herein referred to as a
     "Preliminary Prospectus." Any reference herein to the Registration
      ----------------------                                           
     Statement, any Preliminary Prospectus or to the Prospectus shall be deemed
     to refer to and include any documents incorporated by reference therein,
     and, in the case of any reference herein to any Prospectus, also shall be
     deemed to include any documents incorporated by reference therein, and any
     supplements or amendments thereto, filed with the Commission after the date
     of filing of the Prospectus under Rule 424(b) or Rule 430A, and prior to
     the termination of the offering of the Shares by the Underwriters.  For
     purposes of this Agreement, all references to the Registration Statement,
     any Preliminary Prospectus, the Prospectus, or any amendment or supplement
     to any of the foregoing, shall be deemed to include the respective copies
     thereof filed with the Commission pursuant to EDGAR.

          (ii) The Company has been duly organized and is validly existing as a
     corporation in good standing under the laws of the Commonwealth of
     Massachusetts, with corporate power and authority to own or lease its
     properties and conduct its business as described in the Registration
     Statement.  Each of the subsidiaries of the Company as listed in Exhibit A
                                                                      ---------
     hereto (collectively, 

 
     the "Subsidiaries") has been duly organized and is validly existing as a
          ------------                                 
     corporation in good standing under the laws of the jurisdiction of its
     incorporation, with corporate power and authority to own or lease its
     properties and conduct its business as described in the Registration
     Statement. The Subsidiaries are the only subsidiaries, direct or indirect,
     of the Company. The Company and each of the Subsidiaries are duly qualified
     to transact business in all jurisdictions in which the conduct of their
     business requires such qualification and where the failure to be so
     qualified would have a material adverse effect on the business or results
     of operations of the Company and the Subsidiaries, taken as a whole. The
     outstanding shares of capital stock of each of the Subsidiaries have been
     duly authorized and validly issued, are fully paid and non-assessable and
     are owned by the Company free and clear of all liens, encumbrances and
     equities and claims; and no options, warrants or other rights to purchase,
     agreements or other obligations to issue or other rights to convert any
     obligations into shares of capital stock or ownership interests in the
     Subsidiaries are outstanding.

          (iii) The outstanding shares of Common Stock of the Company, including
     all shares to be sold by the Selling Shareholders, have been duly
     authorized and validly issued and are fully paid and non-assessable; the
     portion of the Shares to be issued and sold by the Company have been duly
     authorized and when issued and paid for as contemplated herein will be
     validly issued, fully paid and non-assessable; and no preemptive rights of
     stockholders exist with respect to any of the Shares or the issue and sale
     thereof. Neither the filing of the Registration Statement nor the offering
     or sale of the Shares as contemplated by this Agreement gives rise to any
     rights, other than those which have been waived or satisfied, for or
     relating to the registration of any shares of Common Stock.

          (iv) The information set forth under the caption "Capitalization" in
     the Prospectus is true and correct. All of the Shares conform to the
     description thereof contained in the Registration Statement. The form of
     certificates for the Shares conforms to the corporate law of the
     jurisdiction of the Company's incorporation.

          (v) The Commission has not issued an order preventing or suspending
     the use of any Prospectus relating to the proposed offering of the Shares
     nor instituted proceedings for that purpose. The Registration Statement
     contains, and the Prospectus and any amendments or supplements thereto will
     contain, all statements which are required to be stated therein by, and
     will conform to, the requirements of the Act and the Rules and Regulations.
     The documents incorporated by reference in the Prospectus, at the time
     filed with the Commission conformed, in all respects to the requirements of
     the Securities Exchange Act of 1934 or the Act, as applicable, and the
     rules and regulations of the Commission thereunder. The Registration
     Statement and any amendment thereto do not contain, and will not contain,
     any untrue statement of a material fact and do not omit, and will not omit,
     to state any material fact required to be stated therein or necessary to
     make the statements therein not misleading. The Prospectus and any
     amendments and supplements thereto do not contain, and will not contain,
     any untrue statement of material fact; and do not omit, and will not omit,
     to state any material fact required to be stated therein or necessary to
     make the statements therein, in the light of the circumstances under which
     they were made, not misleading; provided, however, that the Company makes
                                     --------  -------                        
     no representations or warranties as to information contained in or omitted
     from the Registration Statement or the Prospectus, or any such amendment or
     supplement, in reliance upon, and in conformity with, written information
     furnished to the Company by or on behalf of any Underwriter through the
     Representatives, specifically for use in the preparation thereof.

 
          (vi) The consolidated financial statements of the Company and the
     Subsidiaries, together with related notes and schedules as set forth or
     incorporated by reference in the Registration Statement, present fairly the
     financial position and the results of operations and cash flows of the
     Company and the consolidated Subsidiaries, at the indicated dates and for
     the indicated periods. Such financial statements and related schedules have
     been prepared in accordance with generally accepted principles of
     accounting, consistently applied throughout the periods involved, except as
     disclosed herein, and all adjustments necessary for a fair presentation of
     results for such periods have been made. The summary financial and
     statistical data included or incorporated by reference in the Registration
     Statement presents fairly the information shown therein and such data have
     been compiled on a basis consistent with the financial statements presented
     therein and the books and records of the Company. The pro forma financial
     statements and other pro forma financial information included in the
     Registration Statement and the Prospectus present fairly the information
     shown therein, have been prepared in accordance with the Commission's rules
     and guidelines with respect to pro forma financial statements, have been
     properly compiled on the pro forma bases described therein, and, in the
     opinion of the Company, the assumptions used in the preparation thereof are
     reasonable and the adjustments used therein are appropriate to give effect
     to the transactions or circumstances referred to therein.

          (vii) Arthur Andersen LLP, who have certified certain of the
     financial statements filed with the Commission as part of, or incorporated
     by reference in, the Registration Statement, are independent public
     accountants as required by the Act and the Rules and Regulations.

          (viii) There is no action, suit, claim or proceeding pending or, to
     the knowledge of the Company, threatened against the Company or any of the
     Subsidiaries before any court or administrative agency or otherwise which,
     if determined adversely to the Company or any of its Subsidiaries, might
     result in any material adverse change in the business or financial
     condition of the Company and its Subsidiaries, taken as a whole, or to
     prevent the consummation of the transactions contemplated hereby, except as
     set forth in the Registration Statement.

          (ix) The Company and the Subsidiaries have good and marketable title
     to all of the properties and assets reflected in the financial statements
     (or as described in the Registration Statement) hereinabove described,
     subject to no lien, mortgage, pledge, charge or encumbrance of any kind
     except those reflected in such financial statements (or as described in the
     Registration Statement) or which are not material in amount. The Company
     and the Subsidiaries occupy all their leased properties under valid and
     binding leases conforming in all material respects to the description
     thereof set forth in the Registration Statement.

          (x) The Company and the Subsidiaries have filed all Federal, State,
     local and foreign income tax returns which have been required to be filed
     and have paid all taxes indicated by said returns and all assessments
     received by them or any of them to the extent that such taxes have become
     due. All tax liabilities have been adequately provided for in the financial
     statements of the Company.

          (xi) Since the respective dates as of which information is given in
     the Registration Statement, as it may be amended or supplemented, there has
     not been any material adverse change in or affecting the condition,
     financial or otherwise of the Company or the earnings, business affairs,
     management or business prospects of the Company and its Subsidiaries, taken
     as a whole, whether or not occurring in the ordinary course of business,
     and there has not been any material transaction entered into by the Company
     or the Subsidiaries, other than transactions 

 
     in the ordinary course of business and changes and transactions described
     in the Registration Statement, as it may be amended or supplemented. The
     Company and the Subsidiaries have no material contingent obligations which
     are not disclosed in the Registration Statement, as it may be amended or
     supplemented.

          (xii) Neither the Company nor any of the Subsidiaries is or with the
     giving of notice or lapse of time or both, will be, in violation of or in
     default under its Charter or By-laws or under any agreement, lease,
     contract, indenture or other instrument or obligation to which it is a
     party or by which it, or any of its properties, is bound and which default
     is of material significance in respect of the business or financial
     condition of the Company and its Subsidiaries, taken as a whole. The
     execution and delivery of this Agreement and the consummation of the
     transactions herein contemplated and the fulfillment of the terms hereof
     will not conflict with or result in a breach of any of the terms or
     provisions of, or constitute a default under, any indenture, mortgage, deed
     of trust or other agreement or instrument to which the Company or any
     Subsidiary is a party, or of the Charter or By-laws of the Company or any
     order, rule or regulation applicable to the Company or any Subsidiary of
     any court or of any regulatory body or administrative agency or other
     governmental body having jurisdiction.

          (xiii) Each approval, consent, order, authorization, designation,
     declaration or filing by or with any regulatory, administrative or other
     governmental body necessary in connection with the execution and delivery
     by the Company of this Agreement and the consummation of the transactions
     herein contemplated (except such additional steps as may be required by the
     Commission, the National Association of Securities Dealers, Inc. (the
                                                                          
     "NASD") or such additional steps as may be necessary to qualify the Shares
      ----                                                                     
     for public offering by the Underwriters under state securities or Blue Sky
     laws) has been obtained or made and is in full force and effect.

          (xiv) The Company and each of the Subsidiaries owns or possesses
     adequate licenses or other rights to use all patents, patent applications,
     trademarks, trademark applications, service marks, service mark
     applications, trade names, copyrights, manufacturing processes, formulae,
     trade secrets and know-how or other information (collectively,
     "Intellectual Property") described in the Prospectus as owned by or used by
      ---------------------                                                     
     the Company or the Subsidiaries or which is necessary to the conduct of its
     business as now conducted by the Company or the Subsidiaries as described
     in the Prospectus. The Company is not aware of any infringement of or
     conflict with the rights of claims or others with respect to any of the
     products or Intellectual Property of the Company or the Subsidiaries which
     could have a material adverse effect on the business or financial condition
     of the Company s and its Subsidiaries, taken as a whole. The Company is not
     aware of any infringement of any of the Intellectual Property rights of the
     Company or the Subsidiaries by any third party which could have a material
     adverse effect on the business or financial condition of the Company and
     the Subsidiaries, taken as a whole.

          (xv) The Company and each the Subsidiaries is conducting its business
     in compliance with all the laws, rules and regulations of the jurisdictions
     in which it is conducting business, except where the failure to so comply
     would not have, singly or in the aggregate, a material adverse effect on
     the business or financial condition of the Company or the Subsidiaries,
     taken as a whole. Without limiting the foregoing, the Company and each of
     the Subsidiaries holds and is operating in compliance with all licenses,
     authorizations, consents, approvals, certificates and permits
     (individually, a "Permit") from any regulatory body or administrative
                       ------                                             
     agency or other governmental body having jurisdiction including, without
     limitation, those Federal and state

 
     workers' compensation laws that are applicable to the operations of the
     Company or the Subsidiaries as now conducted or proposed to be conducted as
     described in the Prospectus, all of which Permits are current, except where
     the failure to so hold or comply with any Permit would not have, singly or
     in the aggregate, a material adverse effect on the business or financial
     condition of the Company and the Subsidiaries, taken as a whole. The
     Company is not aware, nor has it received any notice of, any pending or
     threatened proceedings, or any circumstances which could lead them to
     believe that any such proceedings are imminent, relating to the revocation
     or modification of any such Permit or Approval which, singly or in the
     aggregate if the subject of an unfavorable decision, ruling or finding,
     could have a material adverse effect on the business or financial condition
     of the Company and the Subsidiaries, taken as a whole.

          (xvi) Neither the Company, nor to the Company's knowledge, any of its
     affiliates, has taken or may take, directly or indirectly, any action
     designed to cause or result in, or which has constituted or which might
     reasonably be expected to constitute, the stabilization or manipulation of
     the price of the shares of Common Stock to facilitate the sale or resale of
     the Shares. The Company acknowledges that the Underwriters may engage in
     passive market making transactions in the Shares on the Nasdaq National
     Market in accordance with Rule 10b-6A under the Exchange Act.

          (xvii) Neither the Company nor any Subsidiary is an "investment
     company" within the meaning of such term under the Investment Company Act
     of 1940 (the "1940 Act") and the rules and regulations of the Commission
                   --------                                                  
     thereunder.

          (xviii) The Company maintains a system of internal accounting controls
     sufficient to provide reasonable assurances that (i) transactions are
     executed in accordance with management's general or specific authorization;
     (ii) transactions are recorded as necessary to permit preparation of
     financial statements in conformity with generally accepted accounting
     principles and to maintain accountability for assets; (iii) access to
     assets is permitted only in accordance with management's general or
     specific authorization; and (iv) the recorded accountability for assets is
     compared with existing assets at reasonable intervals and appropriate
     action is taken with respect to any differences.
 
          (xix) The Company and each of its Subsidiaries carry, or are covered
     by, insurance in such amounts and covering such risks as is adequate for
     the conduct of their respective businesses and the value of their
     respective properties and as is customary for companies engaged in similar
     industries.

          (xx) The Company is in compliance in all material respects with all
     presently applicable provisions of the Employee Retirement Income Security
     Act of 1974, as amended, including the regulations and published
     interpretations thereunder ("ERISA"); no "reportable event" (as defined in 
                                  -----                                        
     ERISA) has occurred with respect to any "pension plan" (as defined in
     ERISA) for which the Company would have any liability; the Company has not
     incurred and does not expect to incur liability under (i) Title IV of ERISA
     with respect to termination of, or withdrawal from, any "pension plan" or
     (ii) Sections 412 or 4971 of the Internal Revenue Code of 1986, as amended,
     including the regulations and published interpretations thereunder (the
     "Code"); and each "pension plan" for which the Company would have any
      ----                                                                
     liability that is intended to be qualified under Section 401(a) of the Code
     is so qualified in all material respects and nothing has occurred, whether
     by action or by failure to act, which would cause the loss of such
     qualification.

 
          (xxi) The Company confirms as of the date hereof that it is in
     compliance with all provisions of Section 1 of Laws of Florida, Chapter 92-
     198, An Act Relating to Disclosure of doing Business with Cuba, and the
          ---------------------------------------------------------            
     Company further agrees that if it commences engaging in business with the
     government of Cuba or with any person or affiliate located in Cuba after
     the date the Registration Statement becomes or has become effective with
     the Commission or with the Florida Department of Banking and Finance (the
     "Department"), whichever date is later, or if the information reported or
      ----------                                                              
     incorporated by reference in the Prospectus, if any, concerning the
     Company's business with Cuba or with any person or affiliate located in
     Cuba changes in any material way, the Company will provide the Department
     notice of such business or change, as appropriate, in a form acceptable to
     the Department.

          (b)  Each of the Selling Shareholders severally represents and
     warrants as follows:

          (i) Such Selling Shareholder now has and at the Closing Date and the
     Option Closing Date, as the case may be (as such dates are hereinafter
     defined) will have good and marketable title to the Firm Shares and the
     Option Shares to be sold by such Selling Shareholder, free and clear of any
     liens, encumbrances, equities and claims, and full right, power and
     authority to effect the sale and delivery of such Firm Shares and Option
     Shares (provided that with respect to any Selling Shareholder who is
     exercising a stock option, such representation need only be true as of the
     Closing Date and Option Closing Date, as the case may be); and upon the
     delivery of, against payment for, such Firm Shares and Option Shares
     pursuant to this Agreement, the Underwriters will acquire good and
     marketable title thereto, free and clear of any liens, encumbrances,
     equities and claims.

          (ii) Such Selling Shareholder has full right, power and authority to
     execute and deliver this Agreement, the Power of Attorney and Custody
     Agreement referred to below and to perform its obligations under such
     Agreements. The execution and delivery of this Agreement and the
     consummation by such Selling Shareholder of the transactions herein
     contemplated and the fulfillment by such Selling Shareholder of the terms
     hereof will not require any consent, approval, authorization, or other
     order of any court, regulatory body, administrative agency or other
     governmental body (except as may be required under the Act, state
     securities laws or Blue Sky laws) and will not result in a breach of any of
     the terms and provisions of, or constitute a default under, organizational
     documents of such Selling Shareholder, if not an individual, or any
     indenture, mortgage, deed of trust or other agreement or instrument to
     which such Selling Shareholder is a party, or of any order, rule or
     regulation applicable to such Selling Shareholder of any court or of any
     regulatory body or administrative agency or other governmental body having
     jurisdiction.

          (iii) Such Selling Shareholder has not taken and will not take,
     directly or indirectly, any action designed to, or which has constituted,
     or which might reasonably be expected to cause or result in the
     stabilization or manipulation of the price of the Common Stock of the
     Company and, other than as permitted by the Act, the Selling Shareholder
     will not distribute any prospectus or other offering material in connection
     with the offering of the Shares.

          (iv) Without having undertaken to determine independently the accuracy
     or completeness of either the representations and warranties of the Company
     contained herein or the information contained in the Registration
     Statement, such Selling Shareholder has no reason to believe that the
     representations and warranties of the Company contained in this Section 1
     are not true and correct, is familiar with the Registration Statement and
     has no knowledge of any

 
     material fact, condition or information not disclosed in the Registration
     Statement which has adversely affected or may adversely affect the business
     of the Company or any of the Subsidiaries; and the sale of the Firm Shares
     and the Option Shares by such Selling Shareholder pursuant hereto is not
     prompted by any information concerning the Company or any of the
     Subsidiaries which is not set forth in the Registration Statement or the
     documents incorporated by reference therein. The information pertaining to
     such Selling Shareholder under the caption "Principal and Selling
     Stockholders" in the Prospectus is complete and accurate in all material
     respects.

     2. Purchase, Sale and Delivery of the Firm Shares.
        ---------------------------------------------- 

          (a) On the basis of the representations, warranties and covenants
     herein contained, and subject to the conditions herein set forth, the
     Sellers agree to sell to the Underwriters and each Underwriter agrees,
     severally and not jointly, to purchase, at a price of $_____ [net price]
     per share, the number of Firm Shares set forth opposite the name of each
     Underwriter in Schedule I hereof, subject to adjustments in accordance with
                    ----------                                                  
     Section 9 hereof. The number of Firm Shares to be purchased by each
     Underwriter from each Seller shall be as nearly as practicable in the same
     proportion to the total number of Firm Shares being sold by each Seller as
     the number of Firm Shares being purchased by each Underwriter bears to the
     total number of Firm Shares to be sold hereunder. The obligations of the
     Company and of each of the Selling Shareholders shall be several and not
     joint.

          (b) Certificates in negotiable form for the total number of the Shares
     to be sold hereunder by the Selling Shareholders have been placed in
     custody with the Company as custodian (the "Custodian") pursuant to the
                                                 ---------                  
     Power of Attorney and Custody Agreement executed by each Selling
     Shareholder for delivery of all Firm Shares and any Option Shares to be
     sold hereunder by the Selling Shareholders. Each of the Selling
     Shareholders specifically agrees that the Firm Shares and any Option Shares
     represented by the certificates held in custody for the Selling
     Shareholders under the Power of Attorney and Custody Agreement are subject
     to the interests of the Underwriters hereunder, that the arrangements made
     by the Selling Shareholders for such custody are to that extent
     irrevocable, and that the obligations of the Selling Shareholders hereunder
     shall not be terminable by any act or deed of the Selling Shareholders (or
     by any other person, firm or corporation including the Company, the
     Custodian or the Underwriters) or by operation of law (including the death
     of an individual Selling Shareholder or the dissolution of a corporate
     Selling Shareholder) or by the occurrence of any other event or events,
     except as set forth in the Power of Attorney and Custody Agreement. If any
     such event should occur prior to the delivery to the Underwriters of the
     Firm Shares or the Option Shares hereunder, certificates for the Firm
     Shares or the Options Shares, as the case may be, shall be delivered by the
     Custodian in accordance with the terms and conditions of this Agreement as
     if such event has not occurred. The Custodian is authorized to receive and
     acknowledge receipt of the proceeds of sale of the Shares held by it
     against delivery of such Shares.

          (c) Payment for the Firm Shares to be sold hereunder is to be made in
     New York Clearing House funds by certified or bank cashier's checks drawn
     to the order of the Company for the shares to be sold by it and to the
     order of the Company, "as Custodian" for the shares to be sold by the
     Selling Shareholders, in each case against delivery of certificates
     therefor to the Representatives for the several accounts of the
     Underwriters. Such payment and delivery are to be made at the offices of
     Alex. Brown & Sons Incorporated, 135 East Baltimore Street, Baltimore,
     Maryland, at 10:00 a.m., Baltimore time, on the third business day after
     the date of 

 
     this Agreement or at such other time and date not later than five business
     days thereafter as you and the Company shall agree upon, such time and date
     being herein referred to as the "Closing Date." (As used herein, "business
                                      ------------                     --------
     day" means a day on which the New York Stock Exchange is open for trading
     ---
     and on which banks in New York are open for business and not permitted by
     law or executive order to be closed.) The certificates for the Firm Shares
     will be delivered in such denominations and in such registrations as the
     Representatives request in writing not later than the second full business
     day prior to the Closing Date, and will be made available for inspection by
     the Representatives at least one business day prior to the Closing Date.

          (d) In addition, on the basis of the representations and warranties
     herein contained and subject to the terms and conditions herein set forth,
     certain Selling Shareholders listed on Schedule III hereto hereby grant a n
                                            ------------                       
     option to the several Underwriters to purchase the Option Shares at the
     price per share as set forth in the first paragraph of this Section 2.  The
     maximum number of Option Shares to be sold by the Selling Shareholders is
     set forth opposite their respective names on Schedule III hereto.  The
                                                  ------------             
     option granted hereby may be exercised in whole or in part by giving
     written notice (i) at any time before the Closing Date and (ii) only once
     thereafter within 30 days after the date of this Agreement, by you, as
     Representatives of the several Underwriters, to the Company, the Attorney-
     in-Fact, and the Custodian setting forth the number of Option Shares as to
     which the several Underwriters are exercising the option, the names and
     denominations in which the Option Shares are to be registered and the time
     and date at which such certificates are to be delivered. If the option
     granted hereby is exercised in part, the respective number of Option Shares
     to be sold by the Selling Shareholders listed in Schedule III hereto shall
                                                      ------------             
     be determined on a pro rata basis in accordance with the percentages set
     forth opposite their names on Schedule II hereto, adjusted by you in such
                                   -----------                                
     manner as to avoid fractional shares.  The time and date at which
     certificates for Option Shares are to be delivered shall be determined by
     the Representatives but shall not be earlier than three nor later than 10
     full business days after the exercise of such option, nor in any event
     prior to the Closing Date (such time and date being herein referred to as
     the "Option Closing Date").  If the date of exercise of the option is three
          -------------------                                                   
     or more days before the Closing Date, the notice of exercise shall set the
     Closing Date as the Option Closing Date.  The number of Option Shares to be
     purchased by each Underwriter shall be in the same proportion to the total
     number of Option Shares being purchased as the number of Firm Shares being
     purchased by such Underwriter bears to the total number of Firm Shares,
     adjusted by you in such manner as to avoid fractional shares.  The option
     with respect to the Option Shares granted hereunder may be exercised only
     to cover over-allotments in the sale of the Firm Shares by the
     Underwriters. You, as Representatives of the several Underwriters, may
     cancel such option at any time prior to its expiration by giving written
     notice of such cancellation to the Company and the Attorney-in-Fact.  To
     the extent, if any, that the option is exercised, payment for the Option
     Shares shall be made on the Option Closing Date in New York Clearing House
     funds by certified or bank cashier's check drawn to the order of the
     Company for the Option Shares to be sold by it and to the order of "CRA
     Managed Care, Inc., as Custodian" for the Option Shares to be sold by the
     Selling Shareholders against delivery of certificates therefor at the
     offices of Alex. Brown & Sons Incorporated, 135 East Baltimore Street,
     Baltimore, Maryland.

          (e)  If on the Closing Date or Option Closing Date, as the case may
     be, any Selling Shareholder fails to sell the Firm Shares or Option Shares
     which such Selling Shareholder has agreed to sell on such date as set forth
     in Schedule II or Schedule III hereto, as the case may be,  the Company
        -----------    ------------                                         
     may, at its option, agree that it will sell or arrange for the sale of that
     number of shares of Common Stock to the Underwriters which represents Firm
     Shares or the Option Shares 

 
     which such Selling Shareholder has failed to so sell, as set forth in
     Schedule II or Schedule III hereto, as the case may be or such lesser
     -----------    ------------                        
     number as may be requested by the Representatives.

     3.   Offering by the Underwriters.
          ---------------------------- 

          It is understood that the several Underwriters are to make a public
     offering of the Firm Shares as soon as the Representatives deem it
     advisable to do so.  The Firm Shares are to be initially offered to the
     public at the initial public offering price set forth in the Prospectus.
     The Representatives may from time to time thereafter change the public
     offering price and other selling terms.  To the extent, if at all, that any
     Option Shares are purchased pursuant to Section 2 hereof, the Underwriters
     will offer them to the public on the foregoing terms.

          It is further understood that you will act as the Representatives for
     the Underwriters in the offering and sale of the Shares in accordance with
     a Master Agreement Among Underwriters entered into by you and the several
     other Underwriters.

     4.   Covenants of the Company and the Selling Shareholders.
          ----------------------------------------------------- 

          (a)  The Company covenants and agrees with the several Underwriters
     that:

          (i)  The Company will (A) prepare and timely file with the Commission
     under Rule 424(b) of the Rules and Regulations a Prospectus containing
     information previously omitted at the time of effectiveness of the
     Registration Statement in reliance on Rule 430A of the Rules and
     Regulations, and (B) not file any amendment to the Registration Statement
     or supplement to the Prospectus of which the Representatives shall not
     previously have been advised and furnished with a copy or to which the
     Representatives shall have reasonably objected in writing or which is not
     in compliance with the Rules and Regulations.  To the extent applicable,
     the copies of the Registration Statement and each amendment thereto
     (including all exhibits filed therewith), any Preliminary Prospectus or
     Prospectus (in each case, as amended or supplemented) furnished to the
     Underwriters will be identical to the electronically transmitted copies
     thereof filed with the Commission pursuant to EDGAR, except to the extent
     permitted by Regulation S-T.

          (ii)  The Company will advise the Representatives promptly (A) when
     the Registration Statement or any post-effective amendment thereto shall
     have become effective, (B) of receipt of any comments from the Commission,
     (C) of any request of the Commission for amendment of the Registration
     Statement or for supplement to the Prospectus or for any additional
     information, and (D) of the issuance by the Commission of any stop order
     suspending the effectiveness of the Registration Statement or the use of
     the Prospectus or of the institution of any proceedings for that purpose.
     The Company will use its best efforts to prevent the issuance of any such
     stop order preventing or suspending the use of the Prospectus and to obtain
     as soon as possible the lifting thereof, if issued.

          (iii)  The Company will cooperate with the Representatives in
     endeavoring to qualify the Shares for sale under the securities laws of
     such jurisdictions as the Representatives may reasonably have designated in
     writing and will make such applications, file such documents, and furnish
     such information as may be reasonably required for that purpose, provided
     the Company shall not be required to qualify as a foreign corporation or to
     file a general consent to service of process in any jurisdiction where it
     is not now so qualified or required to file such a consent.  The Company
     will, from time to time, prepare and file such statements, reports, and
     other 

 
     documents, as are or may be required to continue such qualifications in
     effect for so long a period as the Representatives may reasonably request
     for distribution of the Shares.

          (iv)  The Company will deliver to, or upon the order of, the
     Representatives, from time to time, as many copies of any Preliminary
     Prospectus as the Representatives may reasonably request.  The Company will
     deliver to, or upon the order of, the Representatives during the period
     when delivery of a Prospectus is required under the Act, as many copies of
     the Prospectus in final form, or as thereafter amended or supplemented, as
     the Representatives may reasonably request.  The Company will deliver to
     the Representatives at or before the Closing Date, four signed copies of
     the Registration Statement and all amendments thereto including all
     exhibits filed therewith, and will deliver to the Representatives such
     number of copies of the Registration Statement, but without exhibits, and
     of all amendments thereto, as the Representatives may reasonably request.

          (v)  The Company will comply with the Act and the Rules and
     Regulations, and the Securities Exchange Act of 1934 (the "Exchange Act"),
                                                                ------------   
     and the rules and regulations of the Commission thereunder, so as to permit
     the completion of the distribution of the Shares as contemplated in this
     Agreement and the Prospectus.  If during the period in which a prospectus
     is required by law to be delivered by an Underwriter or dealer, any event
     shall occur as a result of which, in the judgment of the Company or in the
     reasonable opinion of the Underwriters, it becomes necessary to amend or
     supplement the Prospectus in order to make the statements therein, in the
     light of the circumstances existing at the time the Prospectus is delivered
     to a purchaser, not misleading, or, if it is necessary at any time to amend
     or supplement the Prospectus to comply with any law, the Company promptly
     will either (i) prepare and file with the Commission an appropriate
     amendment to the Registration Statement or supplement to the Prospectus or
     (ii) prepare and file with the Commission an appropriate filing under the
     Exchange Act which shall be incorporated by reference in the Prospectus so
     that the Prospectus as so amended or supplemented will not, in the light of
     the circumstances when it is so delivered, be misleading, or so that the
     Prospectus will comply with the law.

          (vi)  The Company will make generally available to its security
     holders, as soon as it is practicable to do so, but in any event not later
     than 15 months after the effective date of the Registration Statement, an
     earning statement (which need not be audited) in reasonable detail,
     covering a period of at least 12 consecutive months beginning after the
     effective date of the Registration Statement, which earning statement shall
     satisfy the requirements of Section 11(a) of the Act and Rule 158 of the
     Rules and Regulations and will advise you in writing when such statement
     has been so made available.

          (vii)  The Company will, for a period of five years from the Closing
     Date, deliver to the Representatives copies of annual reports and copies of
     all other documents, reports and information furnished by the Company to
     its stockholders or filed with any securities exchange pursuant to the
     requirements of such exchange or with the Commission pursuant to the Act or
     the Exchange Act.  The Company will deliver to the Representatives similar
     reports with respect to significant subsidiaries, as that term is defined
     in the Rules and Regulations, which are not consolidated in the Company's
     financial statements.  To the extent applicable, such reports or documents
     shall be identical to the electronically transmitted copies thereof filed
     with the Commission pursuant to EDGAR, except to the extent permitted by
     Regulation S-T.

 
          (viii) No offering, sale, short sale or other disposition of any
     shares of Common Stock of the Company or other securities convertible into
     or exchangeable or exercisable for shares of Common Stock or derivative of
     Common Stock (or agreement for such) will be made for a period of 90 days
     after the date of this Agreement, directly or indirectly, by the Company
     otherwise than hereunder or with the prior written consent of Alex. Brown &
     Sons Incorporated, except that the Company may, without such consent, issue
     shares upon the exercise of options outstanding on the date of this
     Agreement issued pursuant to the Company's stock option plans.

          (ix)  The Company will use its best efforts to list, subject to notice
     of issuance, the Shares on the National Association of Securities Dealers
     Automated Quotations ("Nasdaq") National Market.
                            ------                   

          (x)  The Company has caused each officer and director and certain
     specified shareholders of the Company to furnish to you, on or prior to the
     date of this agreement, a letter or letters, in form and substance
     satisfactory to the Underwriters, pursuant to which each such person shall
     agree not to: (A) offer to sell, contract to sell, transfer or otherwise
     dispose of, directly or indirectly, any shares of Common Stock, any
     options, rights or warrants to purchase any shares of Common Stock
     (including any stock appreciation right, or similar right with an exercise
     or conversion privilege at a price related to, or derived from, the market
     price of the Common Stock) or any securities convertible into or
     exchangeable for shares of Common Stock owned directly by such person or
     with respect to which such person has the power of disposition (including,
     without limitation, shares of Common Stock which such person may be deemed
     to beneficially own in accordance with the rules and regulations
     promulgated under the Exchange Act); or (B) engage in any hedging
     transactions with respect to the Common Stock that may have an impact on
     the market price of the Common Stock for a period beginning on the date of
     such letters and expiring 90 days following the date the Registration
     Statement is declared effective by the Commission (the "Lockup Period"),
                                                             -------------   
     directly or indirectly ("Lockup Agreements"); provided, however, such
                              -----------------    --------  -------      
     officers, directors and specified shareholders shall be permitted to make
     the following transfers:  (i) transfers of up to an aggregate of 50,000
     shares of Common Stock made by gift, provided the donee thereof agrees in
                                          --------                            
     writing to be bound by the terms hereof; (ii) transfers to the transferor's
     affiliates, as such term is defined in Rule 405 promulgated under the
     Securities Act, provided that each transferee agrees in writing to be bound
                     --------                                                   
     by the terms hereof; (iii) transfers made with the prior written consent of
     Alex. Brown & Sons Incorporated and (iv) transfers to the Underwriters
     pursuant to this Agreement.

          (xi)  The Company shall apply the net proceeds of its sale of the
     Shares as set forth in the Prospectus and shall file such reports with the
     Commission with respect to the sale of the Shares and the application of
     the proceeds therefrom as may be required in accordance with Rule 463 under
     the Act.

          (xii)  The Company shall not invest, or otherwise use the proceeds
     received by the Company from its sale of the Shares in such a manner as
     would require the Company or any of the Subsidiaries to register as an
     investment company under the 1940 Act.

          (xiii)  The Company will maintain a transfer agent and, if necessary
     under the jurisdiction of incorporation of the Company, a registrar for the
     Common Stock.

 
          (xiv)  The Company will not take, directly or indirectly, any action
     designed to cause or result in, or that has constituted or might reasonably
     be expected to constitute, the stabilization or manipulation of the price
     of any securities of the Company.

          (b)  Each of the Selling Shareholders covenants and agrees with the
     several Underwriters that:

          (i) Such Selling Shareholder will not: (A) offer to sell, contract to
     sell, transfer or otherwise dispose of, directly or indirectly, any shares
     of Common Stock, any options, rights or warrants to purchase any shares of
     Common Stock (including any stock appreciation right, or similar right with
     an exercise or conversion privilege at a price related to, or derived from,
     the market price of the Common Stock) or any securities convertible into or
     exchangeable for shares of Common Stock owned directly by such Selling
     Shareholder or with respect to which such Selling Shareholder has the power
     of disposition (including, without limitation, shares of Common Stock which
     such Selling Shareholder may be deemed to beneficially own in accordance
     with the rules and regulations promulgated under the Exchange Act; or (B)
     engage in any hedging transactions with respect to the Common Stock that
     may have an impact on the market price of the Common Stock during the
     Lockup Period, directly or indirectly, by such Selling Shareholder
     otherwise than hereunder or with the prior written consent of Alex. Brown &
     Sons Incorporated; provided, however, such Selling Shareholder shall be
                        --------  -------                                   
     permitted to make the following transfers:  (i) transfers of up to an
     aggregate of 50,000 shares of Common Stock made by gift, provided the donee
                                                              --------          
     thereof agrees in writing to be bound by the terms hereof; (ii) transfers
     to the transferor's affiliates, as such term is defined in Rule 405
     promulgated under the Securities Act, provided that each transferee agrees
                                           --------                            
     in writing to be bound by the terms hereof; (iii) transfers made with the
     prior written consent of Alex. Brown & Sons Incorporated and (iv) transfers
     to the Underwriters pursuant to this Agreement.

          (ii) In order to document the Underwriters' compliance with the
     reporting and withholding provisions of the Tax Equity and Fiscal
     Responsibility Act of 1982 and the Interest and Dividend Tax Compliance Act
     of 1983 with respect to the transactions herein contemplated, each of the
     Selling Shareholders agrees to deliver to you prior to or at the Closing
     Date a properly completed and executed United States Treasury Department
     Form W-9 (or other applicable form or statement specified by Treasury
     Department regulations in lieu thereof).

          (iii) Such Selling Shareholder will not take, directly or indirectly,
     any action designed to cause or result in, or that has constituted or might
     reasonably be expected to constitute, the stabilization or manipulation of
     the price of any securities of the Company.

     5. Costs and Expenses.
        ------------------ 

          The Company will pay all costs, expenses and fees incident to the
     performance of the obligations of the Company and the Selling Shareholders
     under this Agreement, including, without limiting the generality of the
     foregoing, the following:  accounting fees of the Company; the fees and
     disbursements of counsel for the Company and the Selling Shareholders that
     are entitled thereto pursuant to a separate written agreement with the
     Company; the cost of printing and delivering to, or as requested by, the
     Underwriters copies of the Registration Statement, Preliminary
     Prospectuses, the Prospectus, this Agreement, the Agreement among
     Underwriters, the Underwriters' Selling Memorandum, the Underwriters'
     Questionnaire, the Underwriters' Invitation Letter, the Power of Attorney,
     the Additional Listing Application, the Blue Sky Survey 

 
     and any supplements or amendments thereto; the filing fees of the
     Commission; the filing fees and expenses (including fees and disbursements
     of counsel to the Underwriters) incident to securing any required review by
     the NASD of the terms of the sale of the Shares; the Additional Listing Fee
     of the Nasdaq National Market; and the expenses, including the fees and
     disbursements of counsel for the Underwriters, incurred in connection with
     the qualification of the Shares under State securities or Blue Sky laws. To
     the extent, if at all, that any of the Selling Shareholders (other than
     those referred to above) engage special legal counsel to represent them in
     connection with this offering, the fees and expenses of such counsel shall
     be borne by such Selling Shareholder. Any transfer taxes imposed on the
     sale of the Shares to the several Underwriters will be paid by the Sellers
     pro rata. The Company agrees to pay all costs and expenses of the
     Underwriters, including the fees and disbursements of counsel for the
     Underwriters, incident to the offer and sale of directed shares of the
     Common Stock by the Underwriters to employees and persons having business
     relationships with the Company and its Subsidiaries. The Company shall not,
     however, be required to pay for any of the Underwriters' expenses (other
     than those related to qualification under NASD regulation and State
     securities or Blue Sky laws) except that, if this Agreement shall not be
     consummated because the conditions in Section 6 hereof are not satisfied or
     by reason of any failure, refusal or inability on the part of the Company
     or the Selling Shareholders to perform any undertaking or satisfy any
     condition of this Agreement or to comply with any of the terms hereof on
     their part to be performed, unless such failure to satisfy said condition
     or to comply with said terms be due to the default or omission of any
     Underwriter, then the Company shall reimburse the several Underwriters for
     reasonable out-of-pocket expenses, including fees and disbursements of
     counsel, reasonably incurred in connection with investigating, marketing
     and proposing to market the Shares or in contemplation of performing their
     obligations hereunder; but the Company and the Selling Shareholders shall
     not in any event be liable to any of the several Underwriters for damages
     on account of loss of anticipated profits from the sale by them of the
     Shares.
 
     6.   Conditions to Obligations of the Underwriters.
          --------------------------------------------- 

          The several obligations of the Underwriters to purchase the Firm
     Shares on the Closing Date and the Option Shares, if any, on the Option
     Closing Date are subject to the accuracy, as of the Closing Date or the
     Option Closing Date, as the case may be, of the representations and
     warranties of the Company and the Selling Shareholders contained herein,
     and to the performance by the Company and the Selling Shareholders of their
     covenants and obligations hereunder and to the following additional
     conditions:

          (a)  The Registration Statement and all post-effective amendments
     thereto shall have become effective and any and all filings required by
     Rule 424 and Rule 430A of the Rules and Regulations shall have been made,
     and any request of the Commission for additional information (to be
     included in the Registration Statement or otherwise) shall have been
     disclosed to the Representatives and complied with to their reasonable
     satisfaction.  No stop order suspending the effectiveness of the
     Registration Statement, as amended from time to time, shall have been
     issued and no proceedings for that purpose shall have been taken or, to the
     knowledge of the Company or the Selling Shareholders, shall be contemplated
     by the Commission and no injunction, restraining order, or order of any
     nature by a Federal or State court of competent jurisdiction shall have
     been issued as of the Closing Date or Option Closing Date, as the case may
     be, which would prevent the issuance of the Shares.

 
          (b)  The Representatives shall have received on the Closing Date or
     the Option Closing Date, as the case may be, the opinion of Hutchins,
     Wheeler & Dittmar, A Professional Corporation, counsel for the Company and
     the Selling Shareholders, dated the Closing Date or the Option Closing
     Date, as the case may be, addressed to the Underwriters (and stating that
     it may be relied upon by counsel to the Underwriters) to the effect that:

               (i)  The Company has been duly organized and is validly existing
          as a corporation in good standing under the laws of the Commonwealth
          of Massachusetts, with corporate power and authority to own or lease
          its properties and conduct its business as now conducted and described
          in the Registration Statement; each of the Subsidiaries has been duly
          organized and is validly existing as a corporation in good standing
          under the laws of the jurisdiction of its incorporation, with
          corporate power and authority to own or lease its properties and
          conduct its business now conducted and as described in the
          Registration Statement; the Company and each of the Subsidiaries are
          duly qualified to transact business in all jurisdictions in which the
          conduct of their business requires such qualification, or in which the
          failure to qualify would have a materially adverse effect upon the
          business of the Company and the Subsidiaries, taken as a whole; and
          the outstanding shares of capital stock of each of the Subsidiaries
          have been duly authorized and validly issued and are fully paid and
          non-assessable and are owned by the Company or a Subsidiary; and, such
          counsel's knowledge, the outstanding shares of capital stock of each
          of the Subsidiaries is owned free and clear of all liens, encumbrances
          and equities and claims, and no options, warrants or other rights to
          purchase, agreements or other obligations to issue or other rights to
          convert any obligations into any shares of capital stock or of
          ownership interests in the Subsidiaries are outstanding.

               (ii)  The Company has authorized and outstanding capital stock as
          set forth under the caption "Capitalization" in the Prospectus; the
          authorized shares of the Company's Common Stock have been duly
          authorized; the outstanding shares of the Company's Common Stock,
          including the Shares to be sold by the Selling Shareholders, have been
          duly authorized and validly issued and are fully paid and non-
          assessable; all of the Shares conform to the description thereof
          contained in the Prospectus; the certificates for the Shares, assuming
          they are in the form of the specimen filed with the Commission,  are
          in due and proper form; the shares of Common Stock, including the
          Option Shares, if any, to be sold by the Company pursuant to this
          Agreement have been duly authorized and will be validly issued, fully
          paid and non-assessable when issued and paid for as contemplated by
          this Agreement; and, to such counsel's knowledge, no preemptive rights
          of stockholders exist with respect to any of the Shares or the issue
          or sale thereof.

               (iii)  Except as described in or contemplated by the Prospectus,
          to the knowledge of such counsel, there are no outstanding securities
          of the Company convertible or exchangeable into or evidencing the
          right to purchase or subscribe for any shares of capital stock of the
          Company and there are no outstanding or authorized options, warrants
          or rights of any character obligating the Company to issue any shares
          of its capital stock or any securities convertible or exchangeable
          into or evidencing the right to purchase or subscribe for any shares
          of such stock; and except as described in the Prospectus, to the
          knowledge of such counsel, no holder of any securities of the Company
          or any other person has the right, contractual or otherwise, which has
          not been 

 
          satisfied or effectively waived, to cause the Company to sell or
          otherwise issue to them, or to permit them to underwrite the sale of,
          any of the Shares or the right to have any Common Shares or other
          securities of the Company included in the Registration Statement or
          the right, as a result of the filing of the Registration Statement, to
          require registration under the Act of any shares of Common Stock or
          other securities of the Company.

               (iv)  The Registration Statement has become effective under the
          Act and, to the knowledge of such counsel, no stop order proceedings
          with respect thereto have been instituted or are pending or threatened
          under the Act.

               (v) The Registration Statement, all Preliminary Prospectuses, the
          Prospectus and each amendment or supplement thereto and document
          incorporated by reference therein comply as to form in all material
          respects with the requirements of the Act or the Securities Exchange
          Act of 1934, as applicable and the applicable rules and regulations
          thereunder (except that such counsel need express no opinion as to the
          financial statements and related schedules included or incorporated by
          reference therein). The conditions for the use of Form S-3, set forth
          in the General Instructions thereto, have been satisfied.

               (vi) The statements under the captions "Risk Factors-Government
          Regulation," "Risk Factors-Potential Adverse Impact of Shares
          Eligible for Future Sale," "Business-Government Regulation" and
          "Description of Capital Stock" in the Prospectus, insofar as such
          statements constitute a summary of documents referred to therein or
          matters of law, are accurate summaries and fairly and correctly
          present the information called for with respect to such documents and
          matters; and such counsel does not know of any Federal or state laws,
          rules or regulations relating to the provisions of workers'
          compensation managed care services by the Company in the jurisdictions
          in which the Company or any Subsidiaries conduct their business which
          are required to be described in the Registration Statement or the
          Prospectus that are not described as required.

               (vii)  Such counsel does not know of any contracts or documents
          required to be filed as exhibits to or incorporated by reference in
          the Registration Statement or described in the Registration Statement
          or the Prospectus which are not so filed, incorporated by reference or
          described as required, and such contracts and documents as are
          summarized in the Registration Statement or the Prospectus are fairly
          summarized in all material respects.

               (viii)  Such counsel knows of no material legal or governmental
          proceedings pending or threatened against the Company or any of the
          Subsidiaries except as set forth in the Prospectus.

               (ix)  The execution and delivery of this Agreement and the
          consummation of the transactions herein contemplated do not and will
          not conflict with or result in a breach of any of the terms or
          provisions of, or constitute a default under, the Charter or By-laws
          of the Company, or any agreement or instrument to which the Company or
          any of the Subsidiaries is a party or by which the Company or any of
          the Subsidiaries may be bound which were filed as an exhibit to any of
          the Company's registration statements, reports or forms filed pursuant
          to the Securities Act or the Exchange Act.

 
               (x)  This Agreement has been duly authorized, executed and
          delivered by the Company.

               (xi)  No approval, consent, order, authorization, designation,
          declaration or filing by or with any regulatory, administrative or
          other governmental body is necessary in connection with the execution
          and delivery of this Agreement and the consummation of the
          transactions herein contemplated (other than as may be required by the
          NASD or as required by State securities and Blue Sky laws as to which
          such counsel need express no opinion) except such as have been
          obtained or made, specifying the same.

               (xii)  The Company is not, and will not become, as a result of
          the consummation of the transactions contemplated by this Agreement,
          and application of the net proceeds therefrom as described in the
          Prospectus, required to register as an investment company under the
          1940 Act.

               (xiii)  This Agreement has been duly authorized, executed and
          delivered on behalf of the Selling Shareholders.

               (xiv)  Each Selling Shareholder has full legal right, power and
          authority, and any approval required by law (other than as required by
          State securities and Blue Sky laws as to which such counsel need
          express no opinion), to sell, assign, transfer and deliver the portion
          of the Shares to be sold by such Selling Shareholder.

               (xv)  The Power of Attorney and Custody Agreement executed and
          delivered by each Selling Shareholder is valid and binding.

               (xvi)  The Underwriters (assuming that they are bona fide
          purchasers within the meaning of the Uniform Commercial Code who
          acquire the Firm Shares and the Option Shares without notice of any
          adverse claim) have acquired good and marketable title to the Shares
          being sold by each Selling Shareholder on the Closing Date, and the
          Option Closing Date, as the case may be, free of any adverse claims.

               (xvii)  Such counsel has not been advised, and based on (i) a
          review of the Company's files,  (ii) inquiry of senior management of
          the Company and (iii) a review of  the published workers' compensation
          rules and regulations of the states set forth on Schedule II hereto,
                                                           -----------        
          such counsel has no reason to believe that the Company or any of its
          Subsidiaries does not hold all Permits from any regulatory body or
          administrative agency or other governmental body having jurisdiction
          that are applicable to the operations of the Company or its
          Subsidiaries as now conducted or proposed to be conducted as described
          in the Prospectus, all of which Permits are current, except where the
          failure to so hold or comply with any Permit would not have, singly or
          in the aggregate, a material adverse effect on the business or
          financial condition of the Company and its Subsidiaries, taken as a
          whole.  To the knowledge of such counsel, there are no proceedings,
          pending or threatened, relating to the revocation or modification of
          any such Permit which, singly or in the aggregate if the subject of an
          unfavorable decision, ruling or finding, could have a material adverse
          effect on the business or financial condition of the Company and its
          Subsidiaries, taken as a whole.

 
          In rendering such opinion Hutchins, Wheeler & Dittmar, A Professional
     Corporation, may rely as to matters governed by the laws of states other
     than Massachusetts or Federal laws on local counsel in such jurisdictions
     and as to the matters set forth in subparagraphs (xiii), (xiv), (xv) and
     (xvi) on opinions of other counsel representing the respective Selling
     Shareholders, provided that in each case Hutchins, Wheeler & Dittmar, A
     Professional Corporation, shall state that they believe that they and the
     Underwriters are justified in relying on such other counsel.  In addition
     to the matters set forth above, such opinion shall also include a statement
     to the effect that nothing has come to the attention of such counsel which
     leads them to believe that (i) the Registration Statement, at the time it
     became effective under the Act (but after giving effect to any
     modifications incorporated therein pursuant to Rule 430A under the Act) and
     as of the Closing Date or the Option Closing Date, as the case may be,
     contained an untrue statement of a material fact or omitted to state a
     material fact required to be stated therein or necessary to make the
     statements therein not misleading, and (ii) the Prospectus, or any
     supplement thereto, on the date it was filed pursuant to the Rules and
     Regulations and as of the Closing Date or the Option Closing Date, as the
     case may be, contained an untrue statement of a material fact or omitted to
     state a material fact necessary in order to make the statements therein, in
     the light of the circumstances under which they are made, not misleading
     (except that such counsel need express no view as to financial statements,
     schedules and other financial information included therein).  With respect
     to such statement, Hutchins, Wheeler & Dittmar, A Professional Corporation,
     may state that their belief is based upon the procedures set forth therein,
     but is without independent check and verification, and that during the
     course of preparation of the Registration Statement, there can be no
     assurance that all possible material facts were disclosed.

          (c)  The Representatives shall have received from Testa, Hurwitz &
     Thibeault, LLP, counsel for the Underwriters, an opinion dated the Closing
     Date or the Option Closing Date, as the case may be, substantially to the
     effect specified in subparagraphs (ii), (iii), and (iv) of Paragraph (b) of
     this Section 6, and that the Company is a duly organized and validly
     existing corporation under the laws of the Commonwealth of Massachusetts.
     In rendering such opinion Testa, Hurwitz & Thibeault, LLP, may rely as to
     all matters governed other than by the laws of the Commonwealth of
     Massachusetts or Federal laws on the opinion of counsel referred to in
     Paragraph (b) of this Section 6.  In addition to the matters set forth
     above, such opinion shall also include a statement to the effect that
     nothing has come to the attention of such counsel which leads them to
     believe that (i) the Registration Statement, or any amendment thereto, as
     of the time it became effective under the Act (but after giving effect to
     any modifications incorporated therein pursuant to Rule 430A under the Act)
     as of the Closing Date or the Option Closing Date, as the case may be,
     contained an untrue statement of a material fact or omitted to state a
     material fact required to be stated therein or necessary to make the
     statements therein not misleading, and (ii) the Prospectus, or any
     supplement thereto, on the date it was filed pursuant to the Rules and
     Regulations and as of the Closing Date or the Option Closing Date, as the
     case may be, contained an untrue statement of a material fact or omitted to
     state a material fact, necessary in order to make the statements therein,
     in the light of the circumstances under which they are made, not misleading
     (except that such counsel need express no view as to financial statements,
     schedules and statistical information therein).  With respect to such
     statement Testa, Hurwitz & Thibeault, LLP, may state that their belief is
     based upon the procedures set forth therein, but is without independent
     check and verification.

          (d)  The Representatives shall have received at or prior to the
     Closing Date from Testa, Hurwitz & Thibeault, LLP a memorandum or summary,
     in form and substance satisfactory to the Representatives, with respect to
     the qualification for offering and sale by the Underwriters of the 

 
     Shares under the State securities or Blue Sky laws of such jurisdictions as
     the Representatives may reasonably have designated to the Company.

          (e)  You shall have received, on each of the date hereof, the Closing
     Date and the Option Closing Date, as the case may be, a letter dated the
     date hereof, the Closing Date or the Option Closing Date, as the case may
     be, in form and substance satisfactory to you, of Arthur Andersen LLP
     confirming that they are independent public accountants within the meaning
     of the Act and the applicable published Rules and Regulations thereunder
     and stating that in their opinion the financial statements and schedules
     examined by them and included in the Registration Statement comply in form
     in all material respects with the applicable accounting requirements of the
     Act and the related published Rules and Regulations; and containing such
     other statements and information as is ordinarily included in accountants'
     "comfort letters" to underwriters with respect to the financial statements
     and certain financial and statistical information contained in the
     Registration Statement and Prospectus.

          (f)  The Representatives shall have received on the Closing Date or
     the Option Closing Date, as the case may be, a certificate or certificates
     of the Chief Executive Officer and the Chief Financial Officer of the
     Company, in their official capacities,  to the effect that, as of the
     Closing Date or the Option Closing Date, as the case may be, each of them
     severally represents as follows:

               (i)  The Registration Statement has become effective under the
          Act and no stop order suspending the effectiveness of the
          Registrations Statement has been issued, and no proceedings for such
          purpose have been taken or are, to his knowledge, contemplated by the
          Commission;

               (ii)  He does not know of any litigation instituted or threatened
          against the Company of a character required to be disclosed in the
          Registration Statement which is not so disclosed; he does not know of
          any material contract required to be filed as an exhibit to the
          Registration Statement which is not so filed; and the representations
          and warranties of the Company contained in Section 1 hereof are true
          and correct as of the Closing Date or the Option Closing Date, as the
          case may be;

               (iii)  All filings required to have been made pursuant to Rules
          424 or 430A under the Act have been made;

               (iv)  He has carefully examined the Registration Statement and
          the Prospectus and, in his opinion, as of the effective date of the
          Registration Statement, the statements contained in the Registration
          Statement were true and correct, and such Registration Statement and
          Prospectus did not omit to state a material fact required to be stated
          therein or necessary in order to make the statements therein not
          misleading, and, in his opinion, since the effective date of the
          Registration Statement, no event has occurred which should have been
          set forth in a supplement to or an amendment of the Prospectus which
          has not been so set forth in such supplement or amendment; and

               (v)  Since the respective dates as of which information is given
          in the Registration Statement and Prospectus, there has not been any
          material adverse change in or affecting the condition, financial or
          otherwise, of the Company and its Subsidiaries, taken as a whole, or
          the earnings, business affairs, management or business prospects of

 
          the Company and the Subsidiaries, taken as a whole, whether or not
          arising in the ordinary course of business;
 
               (vi)  All of the representations and warranties of the Company
          contained in this Underwriting Agreement are true and correct in all
          material respects on and as of the date hereof and on and as of the
          Closing Date or the Option Closing Date, as the case may be, with the
          same force and effect as if made on and as of the Closing Date or the
          Option Closing Date, as the case may be, except for representations
          and warranties made as of a specific date, which were true and correct
          as of such date;

               (vii)  Each of the conditions specified in Section 6 of this
          Underwriting Agreement has been, as of the Closing Date or the Option
          Closing Date, as the case may be, satisfied in all material respects;
          and

               (viii)  The Company has performed and/or complied in all material
          respects with all of its agreements and covenants required to be
          performed or complied with under this Underwriting Agreement as of or
          prior to the Closing Date or the Option Closing Date, as the case may
          be.

          (g)  The Representatives shall have received on the Closing Date or
     the Option Closing Date, as the case may be, a certificate of each Selling
     Shareholder (or Attorney-in-Fact) to the effect that, as of the Closing
     Date or the Option Closing Date, as the case may be, each Selling
     Shareholder shall represent as follows:

               (i)   All of the representations and warranties of such Selling
          Shareholder contained in this Underwriting Agreement are true and
          correct, in all material respects, on and as of the date hereof and on
          and as of the Closing Date or the Option Closing Date, as the case may
          be, with the same force and effect as if made on and as of the Closing
          Date or the Option Closing Date, as the case may be, except for
          representations and warranties made as of a specific date, which were
          true and correct as of such date; and

               (ii)  Such Selling Shareholder has performed and/or complied, in
          all material respects, with all of such Selling Shareholder's
          agreements and covenants required to be performed or complied with
          under this Underwriting Agreement as of or prior to the Closing Date
          or the Option Closing Date, as the case may be.

          (h)  The Company and the Selling Shareholders shall have furnished to
     the Representatives such further certificates and documents confirming the
     representations and warranties, covenants and conditions contained herein
     and related matters as the Representatives may reasonably have requested.

          (i)  The Firm Shares and Option Shares, if any, have been approved for
     designation upon notice of issuance on the Nasdaq National Market.

          (j)  The Lockup Agreements described in Section 4 (a)(x) are in full
     force and effect.

 
          The opinions and certificates mentioned in this Agreement shall be
     deemed to be in compliance with the provisions hereof only if they are in
     all material respects satisfactory to the Representatives and to Testa,
     Hurwitz & Thibeault, LLP counsel for the Underwriters.

          If any of the conditions hereinabove provided for in this Section 6
     shall not have been fulfilled when and as required by this Agreement to be
     fulfilled, the obligations of the Underwriters hereunder may be terminated
     by the Representatives by notifying the Company of such termination in
     writing or by telegram at or prior to the Closing Date or the Option
     Closing Date, as the case may be.

          In such event, the Selling Shareholders, the Company and the
     Underwriters shall not be under any obligation to each other (except to the
     extent provided in Sections 5 and 8 hereof).

     7.   Conditions to the Obligations of the Company and the Selling
          -------------------------------------------------------------
          Shareholders.
          -------------

          The obligations of the Company and the Selling Shareholders to sell
     and deliver the portion of the Shares required to be delivered as and when
     specified in this Agreement are subject to the conditions that at the
     Closing Date or the Option Closing Date, as the case may be, no stop order
     suspending the effectiveness of the Registration Statement shall have been
     issued and in effect or proceedings therefor initiated or threatened.

     8.   Indemnification.
          --------------- 

          (a)  The Company and the Selling Shareholders, severally and not
     jointly, agree to indemnify and hold harmless each Underwriter and each
     person, if any, who controls any Underwriter within the meaning of the Act,
     against any losses, claims, damages or liabilities to which such
     Underwriter or any such controlling person may become subject under the Act
     or otherwise, insofar as such losses, claims, damages or liabilities (or
     actions or proceedings in respect thereof) arise out of or are based upon
     (i) any untrue statement or alleged untrue statement of any material fact
     contained in the Registration Statement, any Preliminary Prospectus, the
     Prospectus or any amendment or supplement thereto, or  (ii) the omission or
     alleged omission to state therein a material fact required to be stated
     therein or necessary to make the statements therein not misleading; and
     will reimburse each Underwriter and each such controlling person upon
     demand for any legal or other expenses reasonably incurred by such
     Underwriter or such controlling person in connection with investigating or
     defending any such loss, claim, damage or liability, action or proceeding
     and expenses reasonably incurred in responding to a subpoena or
     governmental inquiry related to the offering of the Shares, whether or not
     such Underwriter or controlling person is a party to any action or
     proceeding; provided, however, that the Company and the Selling
                 --------  -------                                  
     Shareholders will not be liable in any such case to the extent that any
     such loss, claim, damage or liability arises out of or is based upon an
     untrue statement or alleged untrue statement, or omission or alleged
     omission made in the Registration Statement, any Preliminary Prospectus,
     the Prospectus, or such amendment or supplement, in reliance upon and in
     conformity with written information furnished to the Company by or through
     the Representatives specifically for use in the preparation thereof; and
     provided further that if the statement or omission has been corrected in
     the Prospectus with respect to any untrue statement or omission or alleged
     untrue statement or omission made in any Preliminary Prospectus, the
     indemnity agreement contained in this paragraph shall not inure to the
     benefit of any Underwriter from whom the person asserting any such losses,
     claims, damages, liabilities or expenses purchased the Shares concerned (or
     to the benefit of any person controlling such Underwriter) to the extent
     that any such loss, claim, damage, liability or 

 
     expense of such copy of the Prospectus was not sent or given to such person
     at or prior to the written confirmation of sale of such Shares to such
     person as required by the Act, unless such failure to deliver the
     Prospectus was a result of non-compliance by the Company with its
     obligations under Section 4(a)(iv) hereof. This indemnity agreement will be
     in addition to any liability which the Company or the Selling Shareholders
     may otherwise have.

          (b)  Each Underwriter severally and not jointly will indemnify and
     hold harmless the Company, each of its directors, each of its officers who
     have signed the Registration Statement, the Selling Shareholders, and each
     person, if any, who controls the Company or the Selling Shareholders within
     the meaning of the Act, against any losses, claims, damages or liabilities
     to which the Company or any such director, officer, Selling Shareholder or
     controlling person may become subject under the Act or otherwise, insofar
     as such losses, claims, damages or liabilities (or actions or proceedings
     in respect thereof) arise out of or are based upon (i)  any untrue
     statement or alleged  untrue statement of any material fact contained in
     the Registration Statement, any Preliminary Prospectus, the Prospectus or
     any amendment or supplement thereto, or (ii) the omission or the alleged
     omission to state therein a material fact required to be stated therein or
     necessary to make the statements therein not misleading in the light of the
     circumstances under which they were made; and will reimburse any legal or
     other expenses reasonably incurred by the Company or any such director,
     officer, Selling Shareholder or controlling person in connection with
     investigating or defending any such loss, claim, damage, liability, action
     or proceeding; provided, however, that each Underwriter will be liable in
                    --------  -------                                         
     each case to the extent, but only to the extent, that such untrue statement
     or alleged untrue statement or omission or alleged omission has been made
     in the Registration Statement, any Preliminary Prospectus, the Prospectus
     or such amendment or supplement, in reliance upon and in conformity with
     written information furnished to the Company by or through the
     Representatives specifically for use in the preparation thereof.  This
     indemnity agreement will be in addition to any liability which such
     Underwriter may otherwise have.

          (c)  In case any proceeding (including any governmental investigation)
     shall be instituted involving any person in respect of which indemnity may
     be sought pursuant to this Section 8, such person (the "indemnified party")
                                                             -----------------  
     shall promptly notify the person against whom such indemnity may be sought
     (the "indemnifying party") in writing.  No indemnification provided for in
           ------------------                                                  
     Section 8(a) or (b) shall be available to any party who shall fail to give
     notice as provided in this Section 8(c) if the party to whom notice was not
     given was unaware of the proceeding to which such notice would have related
     and was prejudiced by the failure to give such notice, but the failure to
     give such notice shall not relieve the indemnifying party or parties from
     any liability which it or they may have to the indemnified party for
     contribution or otherwise than on account of the provisions of Section 8(a)
     or (b).  In case any such proceeding shall be brought against any
     indemnified party and it shall notify the indemnifying party of the
     commencement thereof, the indemnifying party shall be entitled to
     participate therein and, to the extent that it shall wish, jointly with any
     other indemnifying party similarly notified, to assume the defense thereof,
     with counsel satisfactory to such indemnified party and shall pay as
     incurred the fees and disbursements of such counsel related to such
     proceeding.  In any such proceeding, any indemnified party shall have the
     right to retain its own counsel at its own expense.  Notwithstanding the
     foregoing, the indemnifying party shall pay as incurred the fees and
     expenses of the counsel retained by the indemnified party in the event  (i)
     the indemnifying party and the indemnified party shall have mutually agreed
     to the retention of such counsel or (ii) the 

 
     named parties to any such proceeding (including any impleaded parties)
     include both the indemnifying party and the indemnified party and
     representation of both parties by the same counsel would be inappropriate
     due to actual or potential differing interests between them. It is
     understood that the indemnifying party shall not, in connection with any
     proceeding or related proceedings in the same jurisdiction, be liable for
     the reasonable fees and expenses of more than one separate firm for all
     such indemnified parties. Such firm shall be designated in writing by you
     in the case of parties indemnified pursuant to Section 8(a) and by the
     Company and the Selling Shareholders in the case of parties indemnified
     pursuant to Section 8(b). The indemnifying party shall not be liable for
     any settlement of any proceeding effected without its written consent but
     if settled with such consent or if there be a final judgment for the
     plaintiff, the indemnifying party agrees to indemnify the indemnified party
     from and against any loss or liability by reason of such settlement or
     judgment. In addition, the indemnifying party will not, without the prior
     written consent of the indemnified party, settle or compromise or consent
     to the entry of any judgment in any pending or threatened claim, action or
     proceeding of which indemnification may be sought hereunder (whether or not
     any indemnified party is an actual or potential party to such claim, action
     or proceeding) unless such settlement, compromise or consent includes an
     unconditional release of each indemnified party from all liability arising
     out of such claim, action or proceeding.

          (d) If the indemnification provided for in this Section 8 is
     unavailable to or insufficient to hold harmless an indemnified party under
     Section 8(a) or (b) above in respect of any losses, claims, damages or
     liabilities (or actions or proceedings in respect thereof) referred to
     therein, then each indemnifying party shall contribute to the amount paid
     or payable by such indemnified party as a result of such losses, claims,
     damages or liabilities (or actions or proceedings in respect thereof) in
     such proportion as is appropriate to reflect the relative benefits received
     by the Company and the Selling Shareholders on the one hand and the
     Underwriters on the other from the offering of the Shares. If, however, the
     allocation provided by the immediately preceding sentence is not permitted
     by applicable law or if the indemnified party failed to give the notice
     required under Section 8(c) above, then each indemnifying party shall
     contribute to such amount paid or payable by such indemnified party in such
     proportion as is appropriate to reflect not only such relative benefits but
     also the relative fault of the Company and the Selling Shareholders on the
     one hand and the Underwriters on the other in connection with the
     statements or omissions which resulted in such losses, claims, damages or
     liabilities, (or actions or proceedings in respect thereof), as well as any
     other relevant equitable considerations. The relative benefits received by
     the Company and the Selling Shareholders on the one hand and the
     Underwriters on the other shall be deemed to be in the same proportion as
     the total net proceeds from the offering (before deducting expenses)
     received by the Company and the Selling Shareholders bear to the total
     underwriting discounts and commissions received by the Underwriters, in
     each case as set forth in the table on the cover page of the Prospectus.
     The relative fault shall be determined by reference to, among other things,
     whether the untrue or alleged untrue statement of a material fact or the
     omission or alleged omission to state a material fact relates to
     information supplied by the Company or the Selling Shareholders on the one
     hand or the Underwriters on the other and the parties' relative intent,
     knowledge, access to information and opportunity to correct or prevent such
     statement or omission.

          The Company, the Selling Shareholders and the Underwriters agree that
     it would not be just and equitable if contributions pursuant to this
     Section 8(d) were determined by pro rata allocation (even if the
     Underwriters were treated as one entity for such purpose) or by any other
     method of allocation which does not take account of the equitable
     considerations referred to 

 
     above in this Section 8(d). The amount paid or payable by an indemnified
     party as a result of the losses, claims, damages or liabilities (or actions
     or proceedings in respect thereof) referred to above in this Section 8(d)
     shall be deemed to include any legal or other expenses reasonably incurred
     by such indemnified party in connection with investigating or defending any
     such action or claim. Notwithstanding the provisions of this subsection
     (d), (i) no Underwriter shall be required to contribute any amount in
     excess of the underwriting discounts and commissions applicable to the
     Shares purchased by such Underwriter, and (ii) no person guilty of
     fraudulent misrepresentation (within the meaning of Section 11(f) of the
     Act) shall be entitled to contribution from any person who was not guilty
     of such fraudulent misrepresentation. The Underwriters' obligations in this
     Section 8(d) to contribute are several in proportion to their respective
     underwriting obligations and not joint.

          (e)  In any proceeding relating to the Registration Statement, any
     Preliminary Prospectus, the Prospectus or any supplement or amendment
     thereto, each party against whom contribution may be sought under this
     Section 8 hereby consents to the jurisdiction of any court having
     jurisdiction over any other contributing party, agrees that process issuing
     from such court may be served upon him or it by any other contributing
     party and consents to the service of such process and agrees that any other
     contributing party may join him or it as an additional defendant in any
     such proceeding in which such other contributing party is a party.

          (f)  Any losses, claims, damages, liabilities or expenses for which an
     indemnified party is entitled to indemnification or contribution under this
     Section 8 shall be paid by the indemnifying party to the indemnified party
     on a quarterly basis as such losses, claims, damages, liabilities or
     expenses are incurred.  The indemnity and contribution agreements contained
     in this Section 8 and the representations and warranties of the Company set
     forth in this Agreement shall remain operative and in full force and
     effect, regardless of (i) any investigation made by or on behalf of any
     Underwriter or any person controlling any Underwriter, the Company, its
     directors or officers or any persons controlling the Company, (ii)
     acceptance of any Shares and payment therefor hereunder, and (iii) any
     termination of this Agreement.  A successor to any Underwriter, or to the
     Company, its directors or officers, or any person controlling the Company,
     shall be entitled to the benefits of the indemnity, contribution and
     reimbursement agreements contained in this Section 8.

          (g)  In no event shall the liability of any Selling Shareholder for
     indemnification under Section 8(a), contribution under Section 8(d) or
     liability for breach of Section 1(b)(iv) hereof, exceed the lesser of (i)
     proportion of the total of such losses, claims, damages or liabilities
     indemnified or contributed against equal to the proportion of the total
     Shares sold hereunder which is being sold by such Selling Shareholder, or
     (ii) the net proceeds received by such Selling Shareholder from the
     Underwriters in the offering.

          9. Default by Underwriters.
             ----------------------- 

          If on the Closing Date or the Option Closing Date, as the case may be,
     any Underwriter shall fail to purchase and pay for the portion of the
     Shares which such Underwriter has agreed to purchase and pay for on such
     date (otherwise than by reason of any default on the part of the Company or
     a Selling Shareholder), you, as Representatives of the Underwriters, shall
     use your reasonable efforts to procure within 36 hours thereafter one or
     more of the other Underwriters, or any others, to purchase from the Company
     and the Selling Shareholders such amounts as may be agreed upon and upon
     the terms set forth herein, the Firm Shares or Option Shares, as the case

 
     may be, which the defaulting Underwriter or Underwriters failed to
     purchase.  If during such 36 hours you, as such Representatives, shall not
     have procured such other Underwriters, or any others, to purchase the Firm
     Shares or Option Shares, as the case may be, agreed to be purchased by the
     defaulting Underwriter or Underwriters, then  (a) if the aggregate number
     of shares with respect to which such default shall occur does not exceed
     10% of the Firm Shares or Option Shares, as the case may be, covered
     hereby, the other Underwriters shall be obligated, severally, in proportion
     to the respective numbers of Firm Shares or Option Shares, as the case may
     be, which they are obligated to purchase hereunder, to purchase the Firm
     Shares or Option Shares, as the case may be, which such defaulting
     Underwriter or Underwriters failed to purchase, or  (b) if the aggregate
     number of shares of Firm Shares or Option Shares, as the case may be, with
     respect to which such default shall occur exceeds 10% of the Firm Shares or
     Option Shares, as the case may be, covered hereby, the Company and the
     Selling Shareholders or you as the Representatives of the Underwriters will
     have the right, by written notice given within the next 36-hour period to
     the parties to this Agreement, to terminate this Agreement without
     liability on the part of the non-defaulting Underwriters or of the Company
     or of the Selling Shareholders except to the extent provided in Section 8
     hereof.  In the event of a default by any Underwriter or Underwriters, as
     set forth in this Section 9, the Closing Date or Option Closing Date, as
     the case may be, may be postponed for such period, not exceeding seven
     days, as you, as Representatives, may determine in order that the required
     changes in the Registration Statement or in the Prospectus or in any other
     documents or arrangements may be effected.  The term "Underwriter" includes
                                                           -----------          
     any person substituted for a defaulting Underwriter.  Any action taken
     under this Section 9 shall not relieve any defaulting Underwriter from
     liability in respect of any default of such Underwriter under this
     Agreement.

     10.  Notices.
          ------- 

          All communications hereunder shall be in writing and, except as
     otherwise provided herein, will be mailed, delivered, telecopied or
     telegraphed and confirmed as follows:  if to the Underwriters, to Alex.
     Brown & Sons Incorporated, 135 East Baltimore Street, Baltimore, Maryland
     21202, Attention:  Steven R. Schuh; with a copy to Alex. Brown & Sons
     Incorporated, 135 East Baltimore Street, Baltimore, Maryland 21202.
     Attention: General Counsel; if to the Company or the Selling Shareholders,
     to CRA Managed Care, Inc., 312 Union Wharf, Boston, Massachusetts  02109,
     Attention:  Donald J. Larson, with a copy to James Westra, Hutchins,
     Wheeler & Dittmar, A Professional Corporation, 101 Federal Street, Boston,
     Massachusetts  02110; if to the Sellling Stockholders, to the such
     stockholders last address of record in the Company's stock transfer
     records, with a copy to James Westra, Hutchins, Wheeler & Dittmar, A
     Professional Corporation, 101 Federal Street, Boston, Massachusetts 02110.

     11.  Termination.
          ----------- 

          This Agreement may be terminated by you by notice to the Company as
     follows:

          (a)  at any time prior to the earlier of  (i) the time the Shares are
     released by you for sale by notice to the Underwriters, or  (ii) 11:30 a.m.
     on the first business day following the date of this Agreement;

          (b)  at any time prior to the Closing Date if any of the following has
     occurred: (i) since the respective dates as of which information is given
     in the Registration Statement and the Prospectus, any material 

 
     adverse change or any development involving a prospective material adverse
     change in or affecting the condition, financial or otherwise, of the
     Company and its Subsidiaries, taken as a whole, or the earnings, business,
     management, properties, assets, rights, operations, condition (financial or
     otherwise) or prospects of the Company and its Subsidiaries, taken as a
     whole, whether or not arising in the ordinary course of business, (ii) any
     outbreak or escalation of hostilities or declaration of war or national
     emergency or other national or international calamity or crisis or change
     in economic or political conditions if the effect of such outbreak,
     escalation, declaration, emergency, calamity, crisis or change on the
     financial markets of the United States would, in your reasonable judgment,
     make it impracticable to market the Shares or to enforce contracts for the
     sale of the Shares, or (iii) suspension of trading in securities generally
     on the New York Stock Exchange or the American Stock Exchange or limitation
     on prices (other than limitations on hours or numbers of days of trading)
     for securities on either such Exchange, (iv) the enactment, publication,
     decree or other promulgation of any federal or state statute, regulation,
     rule or order of any court or other governmental authority which in your
     opinion materially and adversely affects or may materially and adversely
     affect the business or operations of the Company, (v) declaration of a
     banking moratorium by United States or New York State authorities, (vi) the
     suspension of trading of the Company's common stock by the Commission on
     the Nasdaq National Market or (vii) the taking of any action by any Federal
     or state or local governmental body or agency in respect of its monetary or
     fiscal affairs which in your reasonable opinion has a material adverse
     effect on the securities markets in the United States; or

          (c)  as provided in Sections 6 and 9 of this Agreement.

          This Agreement also may be terminated by you, by notice to the
     Company, as to any obligation of the Underwriters to purchase the Option
     Shares, upon the occurrence at any time prior to the Option Closing Date of
     any of the events described in subparagraph (b) above or as provided in
     Sections 6 and 9 of this Agreement.

     12.  Successors.
          ---------- 

          This Agreement has been and is made solely for the benefit of the
     Underwriters ,the Company and the Selling Shareholders and their respective
     successors, executors, administrators, heirs and assigns, and the officers,
     directors and controlling persons referred to herein, and no other person
     will have any right or obligation hereunder.  No purchaser of any of the
     Shares from any Underwriter shall be deemed a successor or assign merely
     because of such purchase.

     13.  Information Provided by Underwriters.
          ------------------------------------ 

          The Company, the Selling Shareholders and the Underwriters acknowledge
     and agree that the only information furnished or to be furnished by any
     Underwriter to the Company for inclusion in any Prospectus or the
     Registration Statement consists of the information set forth in the last
     paragraph on the front cover page (insofar as such information relates to
     the Underwriters), information provided in connection with Item 502(d) of
     Regulation S-K under the Act and the information under the caption
     "Underwriting" in the Prospectus.

     14.  Miscellaneous.
          ------------- 

          The reimbursement, indemnification and contribution agreements
     contained in this Agreement and the representations, warranties and
     covenants in this Agreement shall remain in 

 
     full force and effect regardless of (a) any termination of this Agreement,
     (b) any investigation made by or on behalf of any Underwriter or
     controlling person thereof, or by or on behalf of the Company or its
     directors or officers and (c) delivery of and payment for the Shares under
     this Agreement; the other covenants of the Company and the Selling
     Shareholders in this Agreement shall remain in full force and effect
     regardless of (a) any investigation made by or on behalf of any underwriter
     or controlling person and (b) delivery of and payment for the Shares under
     this Agreement.

          This Agreement may be executed in two or more counterparts, each of
     which shall be deemed an original, but all of which together shall
     constitute one and the same instrument.

          This Agreement shall be governed by, and construed in accordance with,
     the laws of the State of Maryland.

     If the foregoing letter is in accordance with your understanding of our
agreement, please sign and return to us the enclosed duplicates hereof,
whereupon it will become a binding agreement among the Selling Shareholders, the
Company and the several Underwriters in accordance with its terms.

     It is understood that your acceptance of this letter on behalf of each of
the Underwriters is pursuant to the authority set forth in a form of Agreement
among Underwriters, the form of which shall be submitted to the Company for
examination, upon request, but without warranty on your part as to the authority
of the signers thereof.

 

 
Any person executing and delivering this Agreement as Attorney-in-Fact for a
Selling Shareholder represents by so doing that he has been duly appointed as
Attorney-in-Fact by such Selling Shareholder pursuant to a validly existing and
binding Power of Attorney which authorizes such Attorney-in-Fact to take such
action.

                              Very truly yours,

                              CRA MANAGED CARE, INC.


                              By ________________________________________
                                 Donald J. Larson, President

                              Selling Shareholders listed on Schedule II
                                                             -----------


                              By ________________________________________
                                                  , Attorney-in-Fact


The foregoing Underwriting Agreement
is hereby confirmed and accepted as
of the date first above written.

ALEX. BROWN & SONS INCORPORATED
DEAN WITTER REYNOLDS INC.
MONTGOMERY SECURITIES
J.P. MORGAN & CO.


As Representatives of the several
Underwriters listed on Schedule I

By:  Alex. Brown & Sons Incorporated

By:  ___________________________________
                     Authorized Officer

 
                                 SCHEDULE I
                                 ----------


                           Schedule of Underwriters


 
 
                                                      Number of Firm Shares
                     Underwriter                         to be Purchased
                     -----------                      ---------------------
                                                   
Alex. Brown & Sons Incorporated
Dean Witter Reynolds Inc.
Montgomery Securities
J.P. Morgan & Co.
 
 
 
 
 
             Total                                          2,500,000
                                                            =========


 
                                 SCHEDULE II
                                 -----------


                       Schedule of Selling Shareholders



 
 
                                                         Number of Firm Shares
       Selling Shareholder                                     to be Sold
       -------------------                               ---------------------
                                                      
 
 
 
 
 
 
 
 
          Total                                                          
                                                                =========


 
                                 SCHEDULE III
                                 ------------


                           Schedule of Option Shares


 
 
                                        Maximum Number       Percentage of
                                       of Option Shares     Total Number of
      Name of Seller                      to be Sold         Option Shares
      --------------                   ----------------     ----------------
                                                      








          Total                                                   100%
                                            =======               ====


 
                                   EXHIBIT A
                                   ---------

                                  Subsidiaries
                                  ------------


                            Alta Pacific Corporation

                       FOCUS Healthcare Management, Inc.

                                   QMC3, Inc.