Exhibit 1.1












                          Five Star Quality Care, Inc.

                                3,000,000 Shares

                                  Common Stock


                                     FORM OF

                             UNDERWRITING AGREEMENT





March __, 2002






                             UNDERWRITING AGREEMENT


                                                                  March __, 2002


UBS Warburg LLC
First Union Securities, Inc.
Jefferies & Company, Inc.
As Representatives of the several Underwriters

c/o UBS Warburg LLC
299 Park Avenue
New York, New York  10171-0026


Ladies and Gentlemen:

     Five Star Quality Care, Inc., a Maryland corporation (the "Company"),
proposes to issue and sell to the underwriters named in Schedule A annexed
hereto (the "Underwriters") an aggregate of 3,000,000 shares of Common Stock,
$0.01 par value per share (the "Common Stock"), of the Company (the "Firm
Shares"). In addition, solely for the purpose of covering over-allotments, the
Company proposes to grant to the Underwriters the option to purchase from the
Company up to an additional 450,000 shares of Common Stock (the "Additional
Shares"). The Firm Shares and the Additional Shares are hereinafter collectively
sometimes referred to as the "Shares." The Shares are described in the
Prospectus which is referred to below.

     The Company has filed, in accordance with the provisions of the Securities
Act of 1933, as amended, and the rules and regulations thereunder (collectively,
the "Act"), with the Securities and Exchange Commission (the "Commission") a
registration statement on Form S-1 (File No. 333-83648) including a prospectus,
relating to the Shares. The Company has furnished to you, for use by the
Underwriters and by dealers, copies of one or more preliminary prospectuses
(each thereof being herein called a "Preliminary Prospectus") relating to the
Shares. Except where the context otherwise requires, the registration statement,
as amended when it becomes effective, including all documents filed as a part
thereof, and including any information contained in a prospectus subsequently
filed with the Commission pursuant to Rule 424(b) under the Act and deemed to be
part of the registration statement at the time of effectiveness pursuant to Rule
430(A) under the Act, and also including any registration statement filed
pursuant to Rule 462(b) under the Act, is herein called the "Registration
Statement," and the prospectus, in the form filed by the Company with the
Commission pursuant to Rule 424(b) under the Act on or before the second
business day after the date hereof (or such earlier time as may be required
under the Act) or, if no such filing is required, the form of final prospectus
included in the Registration Statement at the time it became effective, is
herein called the "Prospectus." Any reference herein to the Registration
Statement, a Preliminary Prospectus or the Prospectus shall be deemed to refer
to and include the copy of the Registration Statement, Preliminary Prospectus or
Prospectus filed with the Commission pursuant to its Electronic Data Gathering,
Analysis and Retrieval system ("EDGAR").


                                       1





     The Company and the Underwriters agree as follows:

     1. SALE AND PURCHASE. On the basis of the representations and warranties
herein and subject to the terms and conditions herein set forth, the Company
agrees to issue and sell to each Underwriter and, upon the basis of the
representations, warranties and agreements of the Company herein contained and
subject to all the terms and conditions set forth herein, each Underwriter
agrees, severally and not jointly, to purchase from the Company, at a purchase
price of $_______ per Share (the "purchase price per share"), the number of Firm
Shares set forth opposite the name of such Underwriter in Schedule A annexed
hereto (or such number of Firm Shares increased as set forth in Section 8
hereof).

     The Company is advised by you that the Underwriters intend (i) to make a
public offering of their respective portions of the Firm Shares as soon after
the effective date of the Registration Statement as in your judgment is
advisable and (ii) initially to offer the Firm Shares upon the terms set forth
in the Prospectus. You may from time to time increase or decrease the public
offering price after the initial public offering to such extent as you may
determine.

     In addition, the Company hereby grants to the several Underwriters the
option to purchase, and upon the basis of the representations, warranties and
agreements of the Company and subject to the terms and conditions herein set
forth, the Underwriters shall have the right to purchase, severally and not
jointly, from the Company all or a portion of the Additional Shares as may be
necessary to cover over-allotments made in connection with the offering of the
Firm Shares, at the same purchase price per share to be paid by the Underwriters
to the Company for the Firm Shares. This option may be exercised by you on
behalf of the several Underwriters at any time on or before the 30th day
following the date hereof by written notice to the Company. Such notice shall
set forth the aggregate number of Additional Shares as to which the option is
being exercised and the date and time when the Additional Shares are to be
delivered (such date and time being herein referred to as the "additional time
of purchase"); PROVIDED, HOWEVER, that the additional time of purchase shall not
be earlier than the time of purchase (as defined below) nor earlier than the
second business day1 after the date on which the option shall have been
exercised nor later than the tenth business day after the date on which the
option shall have been exercised. The number of Additional Shares to be sold to
each Underwriter shall be the number which bears the same proportion to the
aggregate number of Additional Shares being purchased as the number of Firm
Shares set forth opposite the name of such Underwriter on Schedule A hereto
bears to the total number of Firm Shares (subject, in each case, to such
adjustment as you may determine solely to eliminate fractional shares).

     2. PAYMENT AND DELIVERY. Payment of the purchase price for the Firm Shares
shall be made to the Company by Federal Funds wire transfer, against delivery of
the certificates for the Firm Shares to you through the facilities of the
Depository Trust Company ("DTC") for the respective accounts of the
Underwriters. Such payment and delivery shall be made at 10:00 A.M., New York
City time, on March __, 2002 (unless another time shall be


- -------------------
1    As used herein "business day" shall mean a day on which the New York Stock
     Exchange is open for trading.


                                       2





agreed to by you and the Company or unless postponed in accordance with the
provisions of Section 8 hereof). The time at which such payment and delivery are
actually made is hereinafter called the "time of purchase." Electronic transfer
of the Firm Shares shall be made to you at the time of purchase in such names
and in such denominations as you shall specify, such specification to be made by
you no later than the second business day preceding the time of purchase.

                  Payment of the purchase price for the Additional Shares shall
be made at the additional time of purchase in the same manner and at the same
office as the payment for the Firm Shares. Electronic transfer of the Additional
Shares shall be made to you at the additional time of purchase in such names and
in such denominations as you shall specify, such specification to be made by you
no later than the second business day preceding the time of purchase.

                  Deliveries of the documents described in Section 6 below with
respect to the purchase of the Shares shall be made at the offices of Dewey
Ballantine LLP, 1301 Avenue of the Americas, New York, New York at 10:00 A.M.,
New York City time, on the date of the closing of the purchase of the Firm
Shares or the Additional Shares, as the case may be.

     3. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company represents
and warrants to each of the Underwriters that:

          (a) the Company has not received nor has notice of any order of the
     Commission preventing or suspending the use of any Preliminary Prospectus,
     or instituting proceedings for that purpose, and each Preliminary
     Prospectus, at the time of filing thereof, conformed in all material
     respects to the requirements of the Act; and when the Registration
     Statement becomes effective, the Registration Statement and the Prospectus
     will conform in all material respects with the provisions of the Act, and
     the Registration Statement will not contain an untrue statement of a
     material fact or omit to state a material fact required to be stated
     therein or necessary to make the statements therein not misleading, and the
     Prospectus will not contain an untrue statement of a material fact or omit
     to state a material fact required to be stated therein or necessary to make
     the statements therein, in light of the circumstances under which they were
     made, not misleading, PROVIDED, HOWEVER, that the Company makes no
     representation or warranty with respect to any statement contained in the
     Registration Statement or the Prospectus relating to information concerning
     the Underwriters and furnished in writing by or on behalf of any
     Underwriter through you to the Company expressly for use in the
     Registration Statement or the Prospectus; and neither the Company nor any
     of its affiliates has distributed any offering materials in connection with
     the offer or sale of the Shares other than the Registration Statement, the
     Preliminary Prospectus, the Prospectus or any other materials, if any,
     permitted by the Act;

          (b) as of the date of this Agreement, the Company's authorized
     capitalization is as set forth under the heading entitled "After giving pro
     forma effect to the FSQ merger and the lease of the 31 Marriott
     communities" in the section of the Registration Statement and the
     Prospectus entitled "Capitalization" and, as of the time of purchase and
     the additional time of purchase, as the case may be, the Company's
     authorized capitalization shall be as set forth under the heading entitled
     "As adjusted for this Offering and after giving pro forma effect to the FSQ
     merger and the lease of the 31


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     Marriott communities" in the section of the Registration Statement and the
     Prospectus entitled "Capitalization" (subject to the issuance of Additional
     Shares at any additional time of purchase); all of the issued and
     outstanding shares of capital stock of the Company have been duly and
     validly authorized and issued and are fully paid and non-assessable, have
     been issued in compliance with all federal and state securities laws and
     were not issued in violation of any preemptive or similar right;

          (c) the Company has been duly incorporated and is existing as a
     corporation in good standing under the laws of the State of Maryland, with
     the requisite corporate power and authority to own, lease and operate its
     properties and conduct its business as described in the Registration
     Statement and the Prospectus;

          (d) the Company is duly qualified to do business as a foreign
     corporation and is in good standing in each jurisdiction where the
     ownership or leasing of its properties or the conduct of its business
     requires such qualification, except where the failure to so qualify in any
     such jurisdiction would not, individually or in the aggregate, have a
     material adverse effect on the business, prospects, properties, condition
     (financial or otherwise) or results of operation of the Company and the
     Subsidiaries (as hereinafter defined) taken as a whole (a "Material Adverse
     Effect");

          (e) the Company has no subsidiaries (as defined in the Act) other than
     as listed in Schedule B annexed hereto (the "Subsidiaries"); except for
     Senior Living of Boynton Beach Limited Partnership and except as described
     in the Registration Statement and the Prospectus, the Company owns 100% of
     the outstanding capital stock or other equity interests of the
     Subsidiaries; except for the Subsidiaries or as described in the
     Registration Statement and the Prospectus, the Company does not own,
     directly or indirectly, any long-term debt or any equity interest in any
     firm, corporation, partnership, joint venture, limited liability company,
     association or other entity; complete and correct copies of the charter and
     bylaws or other organizational documents of the Company and each of the
     Subsidiaries and all amendments thereto have been made available to you;
     each of the Subsidiaries has been duly incorporated or formed and is
     validly existing as a corporation or other entity, as the case may be, in
     good standing under the laws of the jurisdiction of its incorporation or
     organization with the requisite corporate, trust, partnership or other
     power and authority to own, lease and operate its properties and to conduct
     its business as described in the Registration Statement and the Prospectus;
     each Subsidiary is duly qualified and in good standing to do business as a
     foreign corporation in each jurisdiction listed on Schedule B hereto, such
     jurisdictions being the only jurisdictions where the ownership or leasing
     of the properties or the conduct of its business requires such
     qualification, except where the failure to be so qualified would not have a
     Material Adverse Effect; all of the outstanding shares of capital stock of
     each of the Subsidiaries have been duly authorized and validly issued, are
     fully paid and non-assessable, have been issued in compliance with all
     applicable securities laws and were not issued in violation of any
     preemptive or similar right;

          (f) this Agreement has been duly authorized, executed and delivered by
     the Company;

          (g) the capital stock of the Company, including the Shares, conforms
     in all material respects to the description thereof contained in the
     Registration Statement


                                       4





     and the Prospectus; the certificates, if any, evidencing the Shares are in
     due and proper form and conform in all material respects to the
     requirements of the Maryland General Corporation Law (the "MGCL");

          (h) the Shares have been duly and validly authorized and, when issued
     and delivered against payment therefor as provided herein, will be duly and
     validly issued, fully paid and non-assessable and free of any preemptive or
     similar rights;

          (i) neither the Company nor any of the Subsidiaries is in breach or
     violation of, or in default under (and no event has occurred which with
     notice, lapse of time, or both would result in any breach or violation of,
     or constitute a default under) (each such breach, violation or default, a
     "Default Event"), (i) its charter, bylaws or other organizational
     documents, (ii) any obligation, agreement, covenant or condition contained
     in any indenture, mortgage, deed of trust, bank loan or credit agreement,
     or any lease, contract or other agreement or instrument to which the
     Company or any of the Subsidiaries is a party or by which any of them or
     any of their properties is bound or affected and (iii) any order rule or
     regulation of any court or governmental agency or body having jurisdiction
     over the Company or any of its Subsidiaries or any of their respective
     properties, other than, in the case of clauses (ii) and (iii), such Default
     Events as would not, individually or in the aggregate, have a Material
     Adverse Effect; and the execution, delivery and performance of this
     Agreement, including the issuance and sale of the Shares and the
     consummation of any other transactions contemplated hereby, does not
     constitute and will not result in a Default Event under (w) any provisions
     of the charter, bylaws or other organizational documents of the Company or
     any of the Subsidiaries, (x) under any provision of any indenture,
     mortgage, deed of trust, bank loan or credit agreement, or any lease,
     contract or other 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 is bound or to which any of their respective properties is
     subject, (y) under any applicable law, regulation or rule or (z) under any
     decree, judgment or order of any court or governmental agency or body
     having jurisdiction over the Company or any of its Subsidiaries'
     properties, except, in the case of clauses (x), (y) and (z) for such
     Default Events as would not, individually or in the aggregate, have a
     Material Adverse Effect;

          (j) no approval, authorization, consent or order of or filing with any
     federal, state or local or foreign governmental or regulatory commission,
     board, body, authority or agency is required in connection with the
     issuance and sale of the Shares or the consummation by the Company of any
     other transactions contemplated hereby, other than registration of the
     offer and sale of the Shares under the Act, which has been or will be
     effected, and any necessary qualification under the securities or blue sky
     laws of the various jurisdictions in which the Shares are being offered by
     the Underwriters;

          (k) except as set forth in the Registration Statement and the
     Prospectus (i) no person has the right, contractual or otherwise, to cause
     the Company to issue or sell to it any shares of Common Stock or shares of
     any other capital stock or other equity interests of the Company, (ii) no
     person has any preemptive rights, resale rights, rights of first refusal or
     other rights to purchase any shares of Common Stock or shares of any other
     capital stock or other equity interests of the Company, and (iii) no person
     has the right to act as an underwriter, or as a financial advisor to the


                                       5





     Company, in connection with the offer and sale of the Shares, in the case
     of each of the foregoing clauses (i), (ii) and (iii), whether as a result
     of the filing or effectiveness of the Registration Statement or the sale of
     the Shares as contemplated thereby or otherwise; no person has the right,
     contractual or otherwise, to cause the Company to register under the Act
     any shares of Common Stock or shares of any other capital stock or other
     equity interests of the Company, or to include any such shares or interests
     in the Registration Statement or the offering contemplated thereby whether
     as a result of the filing or effectiveness of the Registration Statement or
     the sale of the Shares as contemplated thereby or otherwise, except for
     such rights as have been complied with or waived;

          (l) Ernst & Young LLP, whose reports on (i) the consolidated financial
     statements of the Company and certain Subsidiaries, (ii) the combined
     financial statements of certain Mariner Post-Acute Network Facilities,
     (iii) the financial statements of ILM II Senior Living, Inc. and (iv) the
     financial statements of ILM II Lease Corporation are filed with the
     Commission as part of the Registration Statement and the Prospectus, are
     independent public accountants as required by the Act;

          (m) KPMG LLP, whose report on the combined financial statements with
     respect to 42 nursing home facilities acquired by Senior Housing Properties
     Trust from Integrated Health Services, Inc. is filed with the Commission as
     part of the Registration Statement and the Prospectus, are independent
     public accountants as required by the Act;

          (n) Arthur Andersen LLP, whose report on the consolidated financial
     statements of CSL Group, Inc. and subsidiaries as partitioned for the sale
     to SNH/CSL Properties Trust is filed with the Commission as part of the
     Registration Statement and the Prospectus, are independent public
     accountants as required by the Act;

          (o) PricewaterhouseCoopers LLP, whose reports on the financial
     statements of (i) ILM II Senior Living, Inc. and (ii) ILM II Lease
     Corporation are filed with the Commission as part of the Registration
     Statement and the Prospectus, are independent public accountants as
     required by the Act;

          (p) all legal or governmental proceedings, contracts, leases or
     documents of a character required to be described in the Registration
     Statement or the Prospectus or to be filed as an exhibit to the
     Registration Statement have been so described or filed as required;

          (q) except as disclosed in the Registration Statement and the
     Prospectus, there are no legal or governmental proceedings pending or, to
     the Company's knowledge, threatened to which the Company or any of the
     Subsidiaries is a party or of which any of their respective properties is
     subject which, if adversely decided, would result in a judgment, decree or
     order having a Material Adverse Effect or prevent consummation of the
     transactions contemplated hereby; without limiting the foregoing, the
     Company and the Subsidiaries are in compliance with applicable provisions
     of federal or state laws governing Medicare or any state Medicaid programs,
     including, without limitation, Sections 1320a-7a and 1320a-7b of Title 42
     of the United States Code, except for such provisions the violation of
     which would


                                       6





     not, individually or in the aggregate, have a Material Adverse Effect; no
     individual with an ownership or control interest, as defined in 42 U.S.C.
     Section 1320a-3(a)(3), in the Company or any of the Subsidiaries, or who is
     an officer, director or managing employee as defined in 42 U.S.C. Section
     1320a-5(b), of the Company or any of the Subsidiaries is a person described
     in 42 U.S.C. Section 1320a-7(b)(8)(B), except as would not, individually or
     in the aggregate, have a Material Adverse Effect; and the Company's and
     each of the Subsidiaries' business practices are in compliance with federal
     or state laws regarding physician ownership of (or financial relationship
     with) and referral to entities providing healthcare related goods or
     services, or laws requiring disclosure of financia1 interests held by
     physicians in entities to which they may refer patients for the provisions
     of health care related goods or services, except for those laws, the
     violation of which, individually or in the aggregate, would not have a
     Material Adverse Effect; except as disclosed in the Prospectus, there are
     no Medicare, Medicaid, or any other recoupment or recoupments of any
     governmental or private health care payor being sought, requested or
     claimed or, to the Company's knowledge, threatened against the Company, any
     of the Delaware Subsidiaries, which individually or in the aggregate would
     result in a Material Adverse Effect; and

          (r) to the Company's knowledge and except as disclosed in the
     Registration Statement and the Prospectus, there are no legal or
     governmental proceedings pending or threatened to which any lessor of any
     property which the Company is a lessee is a party or of which any of the
     properties the Company leases is subject at law or in equity, or before or
     by any federal, state, local or foreign governmental or regulatory
     commission, board, body, authority or agency which, if adversely decided,
     would result in a judgment, decree or order having a Material Adverse
     Effect or prevent consummation of the transactions contemplated hereby;

          (s) except as disclosed in the Registration Statement and Prospectus,
     (i) neither the Company nor any of the Subsidiaries has received from any
     governmental authority written notice of any violation of any local, state
     or federal law, rule or regulation including without limitation any such
     law, rule or regulation applicable to the health care industry ("Health
     Care Laws") or relating to human health or safety or the environment or any
     hazardous or toxic substances or wastes, pollutants or contaminants
     ("Environmental Laws") and (ii) to the Company's knowledge, there is no
     such violation or any occurrence or circumstance that would give rise to a
     claim under or pursuant to any local, state or federal law, rule or
     regulation (including, without limitation, any Health Care Laws or
     Environmental Laws), which, in the case of clauses (i) and (ii), would,
     individually or in the aggregate, have a Material Adverse Effect;

          (t) to the Company's knowledge and except as disclosed in the
     Registration Statement and Prospectus, (i) there is no violation of any
     local, state or federal law, rule or regulation (including, without
     limitation, Health Care Laws and Environmental Laws) by any person from
     whom the Company or any of the Subsidiaries acquired or leased any of its
     properties (a "seller"), or any sublessee or operator of any of their
     respective properties or any part thereof and (ii) there is no such
     violation or any occurrence or circumstance that would give rise to a claim
     under or pursuant to any local, state or federal law, rule or regulation
     (including, without limitation, any Health Care Laws or Environmental
     Laws), which, in the case of clauses (i) and (ii) would, individually or in
     the aggregate, have a Material Adverse Effect;


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          (u) no written notice of any condemnation of or zoning change
     affecting the properties or any part thereof of the Company or any of the
     Subsidiaries has been received, or, to the Company's knowledge, threatened,
     that if consummated would, individually or in the aggregate, have a
     Material Adverse Effect; to the Company's knowledge, no seller, sublessee
     or operator of any property, or portion thereof, of the Company or any of
     the Subsidiaries has received from any governmental authority any written
     notice of any condemnation of or zoning change affecting the Properties or
     any part thereof of the Company or any of the Subsidiaries that,
     individually or in the aggregate, would have a Material Adverse Effect;

          (v) the Company and each of the Subsidiaries have good title to all
     real and personal property owned by them as described in the Registration
     Statement and the Prospectus, free and clear of all liens, encumbrances and
     defects except such as are described in the Registration Statement and the
     Prospectus or such as would not, individually or in the aggregate,
     reasonably be expected to have a Material Adverse Effect; except as
     described in the Registration Statement and the Prospectus, any real
     property and buildings held under lease by the Company or any of the
     Subsidiaries are held by it under valid, subsisting and enforceable leases,
     except as enforcement thereof may be limited by bankruptcy, insolvency,
     moratorium, fraudulent conveyance, or other similar laws, affecting the
     enforcement of creditor's rights generally and by general equitable
     principles, with such exceptions as would not have a material adverse
     effect on use made and proposed to be made of such property and buildings
     by the Company or any of the Subsidiaries, as the case may be;

          (w) the Company and each of the Subsidiaries and, to the Company's
     knowledge, each of the operators, lessors or sublessees of any property or
     portion thereof of the Company or any of the Subsidiaries have such
     permits, licenses, approvals, certificates, franchises and authorizations
     of governmental or regulatory authorities ("permits"), including, without
     limitation, under any Health Care Laws or Environmental Laws, as are
     necessary in the case of each such party to acquire and own, lease or
     operate its properties and to conduct its business, all as described in the
     Prospectus, except where the failure to obtain such permits would not,
     individually or in the aggregate, have a Material Adverse Effect; except as
     described in the Prospectus, the Company and each of the Subsidiaries and,
     to the Company's knowledge, each of the lessees, sublessees or operators of
     any property or portion thereof of the Company or any of the Subsidiaries
     have fulfilled and performed all of their obligations with respect to such
     permits and, except as disclosed in the Prospectus, no event has occurred
     which allows, or after notice or lapse of time would allow, revocation or
     termination thereof or result in any other impairment of the rights of the
     holder of any such permit, except where the failure to fulfill or perform,
     or the resulting termination or impairment, would not, individually or in
     the aggregate, have a Material Adverse Effect;

          (x) the financial statements, together with the related schedules and
     notes, included in the Registration Statement and the Prospectus present
     fairly the consolidated financial position of the Company and the
     Subsidiaries as of the dates indicated and the consolidated results of
     operations and cash flows of the Company


                                       8





     and the Subsidiaries for the periods specified and have been prepared in
     compliance with the requirements of the Act and in conformity with
     generally accepted accounting principles applied on a consistent basis
     during the periods involved; all pro forma financial statements and other
     pro forma financial data included in the Registration Statement and the
     Prospectus comply as to form in all material respects with the applicable
     accounting requirements of Regulation S-X of the Act, and the pro forma
     adjustments have been properly applied to the historical amounts in the
     compilation of those statements; the other financial and statistical data
     set forth in the Registration Statement and the Prospectus are accurately
     presented and prepared on a basis consistent with such financial statements
     and books and records of the Company; and there are no financial statements
     (historical or pro forma) that are required to be included in the
     Registration Statement and the Prospectus that are not included as
     required;

          (y) subsequent to the respective dates as of which information is
     given in the Registration Statement and the Prospectus, there has not been
     (i) any material adverse change, or any prospective material adverse
     change, in the business, properties, condition (financial or otherwise) or
     results of operations of the Company and the Subsidiaries taken as a whole,
     (ii) any transaction which is material to the Company or the Subsidiaries
     taken as a whole, (iii) any obligation, direct or contingent, which is
     material to the Company and the Subsidiaries taken as a whole, incurred by
     the Company or the Subsidiaries, (iv) any change in the outstanding capital
     stock (other than issuances of Common Stock upon the exercise of options
     described as outstanding in the Registration Statement and Prospectus), or
     at any additional time of purchase, any material change in outstanding
     capital stock, (v) any increase in outstanding indebtedness of the Company
     or the Subsidiaries, or at any additional time of purchase, any material
     increase in outstanding indebtedness or (vi) any dividend or distribution
     of any kind declared, paid or made on the capital stock of the Company;
     neither the Company nor any of the Subsidiaries has any material contingent
     obligation which is not disclosed in the Registration Statement and the
     Prospectus;

          (z) each of the Company and the Subsidiaries are insured by insurers
     of recognized financial responsibility against such losses and risks and in
     such amounts as are customary in the business in which they are engaged,
     except as described in the Prospectus; except as would not, individually or
     in the aggregate, have a Material Adverse Effect, all policies of insurance
     insuring the Company and the Subsidiaries or any of their businesses,
     assets, employees, officers, directors and trustees are in full force and
     effect, and the Company and the Subsidiaries are in compliance with the
     terms of such policies in all material respects; except as would not,
     individually or in the aggregate, have a Material Adverse Effect, there are
     no claims by the Company or any of the Subsidiaries under any such policy
     or instrument as to which any insurance company is denying liability or
     defending under a reservation of rights clause;

          (aa) except as disclosed in the Registration Statement, neither the
     Company nor any of the Subsidiaries has either sent or received any
     communication regarding termination of, or intent not to renew, any of the
     contracts or agreements referred to or described in, or filed as an exhibit
     to, the Registration Statement, and no such termination or non-renewal has
     been threatened by the Company or any of the Subsidiaries or any other
     party to any such contract or agreement;


                                       9





          (bb) neither the Company nor any of the Subsidiaries nor any of their
     respective affiliates has taken, directly or indirectly, any action
     designed to or which has constituted or which might reasonably be expected
     to cause or result, under the Securities Exchange Act of 1934, as amended
     (the "Exchange Act"), or otherwise, in the stabilization or manipulation of
     the price of any security of the Company to facilitate the sale or resale
     of the Shares;

          (cc) neither the Company nor any of the Subsidiaries has sustained
     since the date of the latest financial statements included in the
     Prospectus any losses or interferences with its business from fire,
     explosion, flood or other calamity, whether or not covered by insurance, or
     from any labor dispute or court or governmental action, order or decree,
     otherwise than as set forth or contemplated in the Registration Statement
     and the Prospectus or other than any losses or interferences which would
     not, individually or in the aggregate, have a Material Adverse Effect;

          (dd) the Company has obtained for the benefit of the Underwriters an
     agreement (a "Lock-Up Agreement"), in the form set forth as EXHIBIT A
     hereto, of Barry M. Portnoy, Gerald M. Martin and Senior Housing Properties
     Trust; the Company will not release or purport to release any person from
     any Lock-Up Agreement without the prior written consent of UBS Warburg;

          (ee) the Company is not and, after giving effect to the offering and
     sale of the Shares, will not be an "investment company" or an entity
     "controlled" by an "investment company," as such terms are defined in the
     Investment Company Act of 1940, as amended (the "Investment Company Act");

          (ff) any statistical and market-related data included in the
     Prospectus are based on or derived from sources that the Company believes
     to be reliable and accurate, and the Company has obtained the written
     consent to the use of such data from such sources to the extent required;

          (gg) the Company and the Subsidiaries maintain a system of internal
     accounting controls sufficient to provide reasonable assurance that (i)
     transactions are executed in accordance with management's general or
     specific authorizations; (ii) transactions are recorded as necessary to
     permit preparation of financial statements in conformity with generally
     accepted accounting principles and to maintain asset accountability; (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 the existing assets at reasonable intervals and
     appropriate action is taken with respect to any differences;

          (hh) the Company and the Subsidiaries have filed all federal, state,
     local and foreign tax returns and tax forms required to be filed; such
     returns and forms are complete and correct in all material respects, and
     all taxes shown by such returns or otherwise assessed that are due or
     payable have been paid, except such taxes as are being contested in good
     faith and as to which adequate reserves have been provided; all payroll
     withholdings required to be made by the Company and the Subsidiaries with
     respect to employees have been made except where the failure to fulfill or
     perform, would not, individually or in the aggregate, have a Material
     Adverse Effect; the charges, accruals and reserves on the books of the
     Company and the Subsidiaries


                                       10





     in respect of any tax liability for any year not finally determined are
     adequate to meet any assessments or reassessments for additional taxes;
     there have been no tax deficiencies asserted and, to the Company's
     knowledge, no tax deficiency might be reasonably asserted or threatened
     against the Company and/or the Subsidiaries that would, individually or in
     the aggregate, have a Material Adverse Effect;

          (ii) the outstanding Common Stock is, and the Shares will be, subject
     to satisfactory distribution information, listed on the American Stock
     Exchange (the "AMEX"); and

          (jj) other than as set forth in the Registration Statement and the
     Prospectus, or as would not, individually or in the aggregate, have a
     Material Adverse Effect, the Company and the Subsidiaries own, possess,
     license or have other rights to use, all patents, trademarks, servicemarks,
     trade names, copyrights, trade secrets, information, proprietary rights and
     processes necessary for their business as described in the Registration
     Statement and the Prospectus.

In addition, any certificate signed by any officer of the Company and delivered
to the Underwriters or counsel for the Underwriters in connection with the
offering of the Shares shall be deemed to be a representation and warranty by
the Company, as to matters covered thereby, to each Underwriter.

          4. CERTAIN COVENANTS OF THE COMPANY. The Company hereby agrees:

          (a) to furnish such information as may be required and otherwise to
     cooperate in qualifying the Shares for offering and sale under the
     securities or blue sky laws of such states as you may designate and to
     maintain such qualifications in effect so long as required for the
     distribution of the Shares; PROVIDED that the Company shall not be required
     to qualify as a foreign corporation or to consent to the service of process
     under the laws of any such state (except service of process with respect to
     the offering and sale of the Shares); and to promptly advise you of the
     receipt by the Company of any notification with respect to the suspension
     of the qualification of the Shares for sale in any jurisdiction or the
     initiation or threat of any proceeding for such purpose;

          (b) to make available to the Underwriters in New York City, as soon as
     practicable after the Registration Statement becomes effective, and
     thereafter from time to time to furnish to the Underwriters, as many copies
     of the Prospectus (or of the Prospectus as amended or supplemented if the
     Company shall have made any amendments or supplements thereto after the
     effective date of the Registration Statement) as the Underwriters may
     reasonably request for the purposes contemplated by the Act; in case any
     Underwriter is required to deliver a prospectus after the nine-month period
     referred to in Section 10(a)(3) of the Act in connection with the sale of
     the Shares, the Company will prepare promptly upon request, but at its
     expense, such amendment or amendments to the Registration Statement and
     such prospectuses as may be necessary to permit compliance with the
     requirements of Section 10(a)(3) of the Act;

          (c) to advise you promptly and (upon your request) to confirm such
     advice in writing, (i) when the Registration Statement has become effective
     and when any


                                       11





     post-effective amendment thereto becomes effective and (ii) if Rule 430A
     under the Act is used, when the Prospectus is filed with the Commission
     pursuant to Rule 424(b) under the Act (which the Company agrees to file in
     a timely manner under such rules);

          (d) to advise you promptly, confirming such advice in writing, of any
     request by the Commission for amendments or supplements to the Registration
     Statement or the Prospectus or for additional information with respect
     thereto, or of notice of institution of proceedings for, or the entry of a
     stop order suspending the effectiveness of the Registration Statement and,
     if the Commission should enter a stop order suspending the effectiveness of
     the Registration Statement, to make every reasonable effort to obtain the
     lifting or removal of such order as soon as possible; to advise you
     promptly of any proposal to amend or supplement the Registration Statement
     or Prospectus and to file no such amendment or supplement to which you
     shall object in writing;

          (e) if necessary or appropriate, to file a registration statement
     pursuant to Rule 462(b) under the Act;

          (f) to furnish to you and, upon request, to each of the other
     Underwriters for a period of three years from the date of this Agreement
     (i) copies of any reports or other communications which the Company shall
     send to its stockholders or shall from time to time publish or publicly
     disseminate, (ii) copies of all annual, quarterly and current reports filed
     with the Commission on Forms 10-K, 10-Q and 8-K, or such other similar
     forms as may be designated by the Commission, (iii) copies of documents or
     reports filed with any national securities exchange on which any class of
     securities of the Company is listed, and (iv) such other information as you
     may reasonably request regarding the Company or any of the Subsidiaries, in
     each case as soon as such communications, documents or information become
     available; provided, however, that in no case shall the Company be required
     to furnish materials pursuant to this paragraph which are filed and
     publicly accessible through EDGAR

          (g) to advise the Underwriters promptly of the happening of any event
     known to the Company within the time during which a Prospectus relating to
     the Shares is required to be delivered under the Act which, in the judgment
     of the Company, would require the making of any change in the Prospectus
     then being used so that the Prospectus would not include an untrue
     statement of material fact or omit to state a material fact necessary to
     make the statements therein, in the light of the circumstances under which
     they are made, not misleading, and, during such time, to prepare and
     furnish, at the Company's expense, to the Underwriters promptly such
     amendments or supplements to such Prospectus as may be necessary to reflect
     any such change and to furnish you a copy of such proposed amendment or
     supplement before filing any such amendment or supplement with the
     Commission;

          (h) to make generally available to its security holders, and to
     deliver to you, an earnings statement of the Company (which will satisfy
     the provisions of Section 11(a) of the Act) covering a period of twelve
     months beginning after the effective date of the Registration Statement (as
     defined in Rule 158(c) of the Act) and ending not later than 15 months
     thereafter;


                                       12





          (i) to furnish to you one conformed copy of the Registration
     Statement, as initially filed with the Commission, and of all amendments
     thereto (including all exhibits thereto) and sufficient additional
     conformed copies (other than exhibits) for distribution of a copy to each
     of the other Underwriters;

          (j) to furnish to you as early as practicable prior to the time of
     purchase and the additional time of purchase, as the case may be, but not
     later than two business days prior thereto, a copy of the latest available
     unaudited interim consolidated financial statements, if any, of the Company
     and the Subsidiaries which have been read by the Company's independent
     certified public accountants, as stated in their letter to be furnished
     pursuant to Section 6(d) hereof;

          (k) to apply the net proceeds from the sale of the Shares in the
     manner set forth under the caption "Use of proceeds" in the Prospectus;

          (l) to pay all expenses, fees and taxes in connection with (i) the
     preparation and filing of the Registration Statement, each Preliminary
     Prospectus, the Prospectus, and any amendments or supplements thereto, and
     the printing and furnishing of copies of each thereof to the Underwriters
     and to dealers (including costs of mailing and shipment), (ii) the
     issuance, sale and delivery of the Shares by the Company, (iii) the word
     processing and/or printing of this Agreement, any Agreement Among
     Underwriters and any dealer agreements and the reproduction and/or printing
     and furnishing of copies of each thereof to the Underwriters and to dealers
     (including costs of mailing and shipment), each relating to the offer and
     sale of the Shares, (iv) the qualification of the Shares for offering and
     sale under state laws and the determination of their eligibility for
     investment under state law as aforesaid (including the legal fees and
     filing fees and other disbursements of counsel to the Underwriters) and the
     printing and furnishing of copies of any blue sky surveys or legal
     investment surveys to the Underwriters and to dealers, (v) the filing for
     review of the public offering of the Shares by NASD Regulation, Inc.
     (including the legal fees and filing fees and other disbursements of
     counsel to the Underwriters with respect thereto), (vi) any listing of the
     Shares on any securities exchange and any registration thereof under the
     Exchange Act, and (vii) the performance of the Company's other obligations
     under this Agreement;

          (m) for so long as the delivery of the Prospectus is required in
     connection with the offer or sale of the Shares, to furnish to you a
     reasonable period of time before filing with the Commission, a copy of any
     document proposed to be filed pursuant to Section 13, 14 or 15(d) of the
     Exchange Act;

          (n) to not take, directly or indirectly, any action designed to or
     which may constitute or which might cause or result, under the Exchange Act
     or otherwise, in the stabilization or manipulation of the price of any
     security of the Company to facilitate the sale or resale of the Shares;

          (o) not to sell, offer to sell, contract to sell, hypothecate, pledge,
     grant any option to sell or otherwise dispose of, directly or indirectly,
     any shares of Common Stock or securities convertible into or exchangeable
     or exercisable for Common Stock or warrants or other rights to purchase
     Common Stock or any such securities or any other securities of the Company
     that are substantially similar to Common Stock, or


                                       13





     file or cause to be declared effective a registration statement under the
     Act relating to the offer and sale of any shares of Common Stock or
     securities convertible into or exercisable or exchangeable for Common Stock
     or other rights to purchase Common Stock or any other securities of the
     Company that are substantially similar to Common Stock, for a period of 90
     days after the date hereof (the "Lock-up Period"), without the prior
     written consent of UBS Warburg, except for (i) the registration of the
     Shares and the sales to the Underwriters pursuant to this Agreement, (ii)
     issuances of Common Stock upon the exercise of options or warrants
     disclosed as outstanding in the Registration Statement and the Prospectus,
     (iii) the issuance of employee stock options not exercisable during the
     Lock-up Period pursuant to stock option plans described in the Registration
     Statement and the Prospectus, (iv) issuances of Common Stock as partial or
     full payment for businesses directly or indirectly acquired or to be
     acquired by the Company or its Subsidiaries, provided that the Company
     shall have conditioned such issuances of Common Stock upon agreement of the
     recipients to the restrictions of this paragraph and (v) the issuance of
     shares of Common Stock or securities convertible into or exchangeable or
     exercisable for Common Stock to the directors of the Company at the meeting
     of the Board of Directors of the Company following the Company's 2002
     annual meeting of stockholders as disclosed in the Registration Statement
     and Prospectus; and

          (p) subject to Section 4(m) hereof, to file promptly all reports and
     any definitive proxy or information statement required to be filed by the
     Company with the Commission in order to comply with the Exchange Act
     subsequent to the date of the Prospectus and for so long as the delivery of
     a prospectus is required in connection with the offering or sale of the
     Shares, and to promptly notify you of such filing.

     5. REIMBURSEMENT OF UNDERWRITERS' EXPENSES. If the Shares are not delivered
for any reason other than the termination of this Agreement pursuant to clause
(ii), (iii) or (iv) of the second paragraph of Section 7 hereof or pursuant to
the last paragraph of Section 8 hereof or the default by one or more of the
Underwriters in its or their respective obligations hereunder, the Company
agrees, in addition to paying the amounts described in Section 4(l) hereof, to
reimburse the Underwriters for all of their out-of-pocket expenses, including
the reasonable fees and disbursements of their counsel.

     6. CONDITIONS TO UNDERWRITERS' OBLIGATIONS. The several obligations of the
Underwriters hereunder are subject to the accuracy of the representations and
warranties on the part of the Company on the date hereof and at the time of
purchase (and the several obligations of the Underwriters at the additional time
of purchase are subject to the accuracy of the representations and warranties on
the part of the Company on the date hereof and at the time of purchase (unless
previously waived) and at the additional time of purchase, as the case may be),
the performance by the Company of its obligations hereunder and to the following
additional conditions precedent:

          (a) The Company shall furnish to you at the time of purchase and at
     the additional time of purchase, as the case may be, an opinion of Sullivan
     & Worcester LLP, counsel for the Company, addressed to the Underwriters,
     and dated the time of purchase or the additional time of purchase, as the
     case may be, with reproduced copies for each of the other Underwriters and
     in a form satisfactory to Dewey Ballantine LLP, counsel for the
     Underwriters, stating that:


                                       14





               (i) the Company is duly qualified to transact business and is in
          good standing in each of the jurisdictions set forth on Schedule B
          hereto; each Subsidiary listed on Schedule C hereto (collectively, the
          "Delaware Subsidiaries") and each Subsidiary listed on Schedule D
          hereto (collectively, the "Maryland Subsidiaries") are each duly
          qualified as a foreign corporation or other legal entity and in good
          standing in each of the jurisdictions set forth on Schedule B hereto;

               (ii) this Agreement has been duly authorized, executed and
          delivered by the Company, and is a legal, valid and binding agreement
          of the Company, enforceable in accordance with its terms, except as
          enforcement of the same may be limited by bankruptcy, insolvency,
          moratorium, fraudulent conveyance or other similar laws affecting the
          enforcement of creditors' rights generally and by general equitable
          principles and except as to those provisions relating to indemnities
          for liabilities arising under the Act as to which no opinion need be
          expressed;

               (iii) the Registration Statement and the Prospectus (except as to
          the financial statements and schedules and other financial and
          statistical data contained therein, as to which such counsel need
          express no opinion) comply as to form in all material respects with
          the requirements of the Act;

               (iv) the Registration Statement has become effective under the
          Act and, to such counsel's knowledge, no stop order proceedings with
          respect thereto are pending or threatened under the Act and any
          required filing of the Prospectus, and any supplement thereto pursuant
          to Rule 424 under the Act, has been made in the manner and within the
          time period required by such Rule 424;

               (v) each Delaware Subsidiary is a corporation or other legal
          entity duly formed, existing and in good standing under the laws of
          its jurisdiction of organization. Each Delaware Subsidiary has the
          corporate, trust, partnership or other power to own or hold under
          lease the properties it purports to own or hold under lease and to
          transact the business it transacts and proposes to transact as
          described in the Registration Statement and Prospectus. All of the
          issued and outstanding shares of beneficial ownership or shares of
          capital stock of, or other ownership interests in, each Delaware
          Subsidiary have been duly authorized and validly issued, are fully
          paid and except as to Delaware Subsidiaries that are limited liability
          companies or partnerships, non-assessable; and all issued and
          outstanding shares of beneficial ownership or shares of capital stock
          of, or other ownership interests in, each Delaware Subsidiary and each
          Maryland Subsidiary are owned by the Company, directly or through
          subsidiaries, free and clear of any security interest, mortgage,
          pledge, lien or encumbrance, except as disclosed in the Registration
          Statement and Prospectus;

               (vi) the execution, delivery and performance of this Agreement by
          the Company and the transactions contemplated hereby do not and will


                                       15





          not result in a Default Event under (nor constitute any event which
          with notice, lapse of time, or both, would result in any breach of, or
          constitute a Default Event under) (A) any provisions of the charter or
          by-laws or other organizational documents of the Delaware
          Subsidiaries, (B) any provision of any agreement or other instrument
          to which the Company or any of the Delaware Subsidiaries is a party or
          by which their respective properties may be bound or affected, that is
          described in the Prospectus or filed as an exhibit to the Registration
          Statement or is otherwise known to such counsel, (C) any federal,
          state, local or foreign law, regulation or rule, or any decree, to
          which the Company or the Delaware Subsidiaries may be subject, other
          than, in the case of clauses (B) and (C), such Default Events as would
          not, individually or in the aggregate, have a Material Adverse Effect;

               (vii) to such counsel's knowledge, there are no contracts,
          licenses, agreements, leases or documents of a character which are
          required to be filed as exhibits to the Registration Statement or to
          be described in the Prospectus which have not been so filed or
          described;

               (viii) to such counsel's knowledge, except as described in the
          Prospectus or as would not, individually or in the aggregate, have a
          Material Adverse Effect, there are no private or governmental actions,
          suits, claims, investigations or proceedings pending, threatened or
          contemplated to which the Company or any of the Delaware Subsidiaries
          or any of their officers is subject or of which any of their
          properties is subject, whether at law, in equity or before or by any
          federal, state, local or foreign governmental or regulatory
          commission, board, body, authority or agency;

               (ix) to such counsel's knowledge, no person has the right,
          pursuant to the terms of any contract, agreement or other instrument
          described in or filed as an exhibit to the Registration Statement, to
          cause the Company to register under the Act any shares of beneficial
          interest or other equity interests as a result of the filing or
          effectiveness of the Registration Statement or the sale of the Shares
          as contemplated hereby, except for such rights as have been complied
          with or waived; and to the knowledge of such counsel, except as
          described in the Registration Statement and Prospectus, no person is
          entitled to registration rights with respect to shares of capital
          stock or other securities of the Company;

               (x) the Company is not, and after the offering and sale of the
          Shares, will not be, an "investment company," or an entity controlled
          by an "investment company," as such terms are defined in the
          Investment Company Act; and

               (xi) to such counsel's knowledge the statements in the
          Registration Statement and the Prospectus under the captions "Business
          - Our lease for the 56 facilities", "Business - Our lease for the
          Marriott facilities", "Business - Government regulation and rate
          setting", "Business - Environmental matters", "Management - Our shared
          services


                                       16





          agreement with REIT Management" and "Federal income tax considerations
          for non-U.S. persons" in each case insofar as such statements purport
          to summarize matters arising under Massachusetts or New York law or
          the federal law of the United States, or provisions of documents as to
          which the Company is a party specifically referred to therein, are
          accurate in all material respects.

     Also, such counsel shall state that it has participated in conferences with
officers and other representatives of the Company, representatives of the
independent public accountants of the Company and representatives of the
Underwriters at which the contents of the Registration Statement and Prospectus
were discussed and, although such counsel is not passing upon and does not
assume responsibility for the accuracy, completeness or fairness of the
statements contained in the Registration Statement or Prospectus (except as and
to the extent stated in subparagraph (xi) above), on the basis of the foregoing
nothing has come to the attention of such counsel that causes them to believe
that the Registration Statement or any amendment thereto at the time such
Registration Statement or amendment became effective 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, or
that the Prospectus or any supplement thereto at the date of the Prospectus
Supplement or such other supplement, and at all times up to and including the
time of purchase or additional time of purchase, 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, in
light of the circumstances under which they were made, not misleading (it being
understood that such counsel need express no opinion with respect to the
financial statements and schedules and other financial and statistical data and
exhibits included or incorporated by reference in the Registration Statement or
Prospectus).

          (b) The Company shall furnish to you at the time of purchase and at
     the additional time of purchase, as the case may be, an opinion of Ballard
     Spahr Andrews & Ingersoll, LLP, special Maryland counsel of the Company,
     addressed to the Underwriters, and dated the time of purchase or the
     additional time of purchase, as the case may be, with reproduced copies for
     each of the other Underwriters and in form satisfactory to Dewey Ballantine
     LLP, counsel for the Underwriters, stating that:

               (i) the Company has been duly incorporated, is existing as a
          corporation in good standing under the laws of the State of Maryland,
          with corporate power to own, lease and operate its properties and
          conduct its business in all material respects as described in the
          Registration Statement and the Prospectus, to execute and deliver this
          Agreement and to issue, sell and deliver the Shares as herein
          contemplated;

               (ii) each Subsidiary of the Company identified on Schedule D
          hereto (each a "Maryland Subsidiary") is a corporation or other legal
          entity duly formed, existing and in good standing under the laws of
          its jurisdiction of organization. Each Maryland Subsidiary has the
          corporate or other power to own or hold under lease the properties it
          purports to own or hold under lease and to transact the business it
          transacts and proposes to transact. All of the issued and outstanding
          shares of capital stock of each Maryland Subsidiary have been duly
          authorized and validly


                                       17





          issued, are fully paid and non-assessable and are owned by the
          Company, directly or through subsidiaries;

               (iii) the execution, delivery and performance of this Agreement
          by the Company and the transactions contemplated hereby and by the
          Registration Statement do not and will not conflict with, or result in
          any breach of, or constitute a default under (nor constitute any event
          which with notice, lapse of time, or both, would result in any breach
          of, or constitute a default under) (A) any provisions of the
          Declaration of Trust, charter or by-laws or other organizational
          documents of the Company or any of the Maryland Subsidiaries or (B)
          any local or state Maryland law or administrative regulation
          applicable to the Company and the Maryland Subsidiaries;

               (iv) the Company has authorized and outstanding shares of capital
          stock as set forth in the Registration Statement and the Prospectus;
          the outstanding shares of capital stock of the Company have been duly
          and validly authorized and issued by all necessary corporate action
          and are fully paid, nonassessable and free of any preemptive rights,
          resale rights, rights of first refusal and similar rights under the
          MGCL; the Shares, when issued, will be duly and validly authorized and
          issued by all necessary corporate action, fully paid, nonassessable
          and free of any preemptive rights, resale rights, rights of first
          refusal and similar rights under the MGCL; and the certificates for
          the Shares are in due and proper form and conform in all material
          respects to the requirements of the MGCL;

               (v) no approval, authorization, consent or order of or filing
          with any Maryland governmental or regulatory commission, board, body,
          authority or agency having jurisdiction over the Company is required
          in connection with the execution, delivery and performance of this
          Agreement, the issuance and sale of the Shares being delivered at the
          time of purchase and at the additional time of purchase, as the case
          may be, or and the consummation of the transactions contemplated
          hereby and by the Prospectus (in rendering the opinion expressed in
          this paragraph (v), such counsel need express no opinion concerning
          the securities laws of the State of Maryland.);

               (vi) to such counsel's knowledge, the statements in the
          Registration Statement and the Prospectus under the captions
          "Description of capital stock" and "Material provisions of Maryland
          law, our charter and bylaws" and in each case insofar as such
          statements purport to summarize matters arising under Maryland law are
          accurate in all material respects; and

               (vii) to such counsel's knowledge, neither the Company nor any of
          the Maryland Subsidiaries is in violation of its charter or by-laws or
          other organizational documents or in violation of any local or state
          Maryland law or administrative regulation applicable to the Company
          and the Maryland Subsidiaries.


                                       18





          (c) You shall have received at the time of purchase and at the
     additional time of purchase, as the case may be, the opinion of Dewey
     Ballantine LLP, counsel for the Underwriters, dated the time of purchase or
     the additional time of purchase, as the case may be, with respect to the
     issuance and sale of the Shares by the Company, the Registration Statement,
     the Prospectus (together with any supplement thereto) and other related
     matters as the Underwriters may require. In addition, Dewey Ballantine LLP
     may rely on the opinion of Ballard Spahr Andrews & Ingersoll, LLP as to all
     matters of Maryland law.

          (d) You shall have received from Ernst & Young LLP letters dated,
     respectively, the date of this Agreement and the time of purchase and
     additional time of purchase, as the case may be, and addressed to the
     Underwriters (with reproduced copies for each of the Underwriters) in the
     forms heretofore approved Dewey Ballantine LLP, counsel for the
     Underwriters.

          (e) You shall have received from KPMG LLP letters dated, respectively,
     the date of this Agreement and the time of purchase and additional time of
     purchase, as the case may be, and addressed to the Underwriters (with
     reproduced copies for each of the Underwriters) in the forms heretofore
     approved Dewey Ballantine LLP, counsel for the Underwriters.

          (f) You shall have received from Arthur Andersen LLP letters dated,
     respectively, the date of this Agreement and the time of purchase and
     additional time of purchase, as the case may be, and addressed to the
     Underwriters (with reproduced copies for each of the Underwriters) in the
     forms heretofore approved Dewey Ballantine LLP, counsel for the
     Underwriters.

          (g) You shall have received from PricewaterhouseCoopers LLP letters
     dated, respectively, the date of this Agreement and the time of purchase
     and additional time of purchase, as the case may be, and addressed to the
     Underwriters (with reproduced copies for each of the Underwriters) in the
     forms heretofore approved Dewey Ballantine LLP, counsel for the
     Underwriters.

          (h) No amendment or supplement to the Registration Statement or
     Prospectus, or document which upon filing with the Commission would be
     incorporated by reference therein, shall at any time have been filed to
     which you have objected in writing.

          (i) The Registration Statement shall have become effective not later
     than 5:30 PM New York City time on the date of this Agreement and, if Rule
     430A under the Act is used, the Prospectus shall have been filed with the
     Commission pursuant to Rule 424(b) under the Act at or before 5:30 PM New
     York City time on the second full business day after the date of this
     Agreement.

          (j) Prior to the time of purchase or the additional time of purchase,
     as the case may be, (i) no stop order with respect to the effectiveness of
     the Registration Statement shall have been issued under the Act or
     proceedings initiated under Section 8(d) or 8(e) of the Act; (ii) the
     Registration Statement and all amendments thereto, or modifications
     thereof, if any, shall not contain an untrue statement of a material fact
     or omit to state a material fact required to be stated therein or necessary
     to make the statements therein not misleading; and (iii) the Prospectus and
     all amendments or


                                       19





     supplements thereto, or modifications thereof, if any, shall not contain an
     untrue statement of a material fact or omit to state a material fact
     required to be stated therein or necessary to make the statements therein,
     in the light of the circumstances under which they are made, not
     misleading.

          (k) Between the time of execution of this Agreement and the time of
     purchase or the additional time of purchase, as the case may be, (i) no
     material and adverse change or any a prospective material and adverse
     change (other than as specifically described in the Registration Statement
     and Prospectus), in the business, properties, condition (financial or
     otherwise) or results of operations of the Company and the Subsidiaries,
     taken as a whole, shall occur or become known and (ii) no transaction which
     is material and adverse to the Company and the Subsidiaries of the Company
     taken as a whole shall have been entered into by the Company or any of the
     Subsidiaries.

          (l) You shall have received the letters referred to in Section 3(dd).

          (m) The Company will, at the time of purchase or additional time of
     purchase, as the case may be, deliver to you a certificate signed by two of
     the Company's executive officers to the effect that the representations and
     warranties of the Company as set forth in this Agreement are true and
     correct as of each such date, that the Company has performed such of its
     obligations under this Agreement as are to be performed at or before the
     time of purchase and at or before the additional time of purchase, as the
     case may be, and the conditions set forth in paragraphs (i), (j) and (k) of
     this Section 6 have been met.

          (n) The Shares shall have been approved for listing for quotation on
     the AMEX, subject only to notice of issuance at or prior to the time of
     purchase or the additional time of purchase, as the case may be.

          (o) The Company shall have furnished to you such other documents and
     certificates as to the accuracy and completeness of any statement in the
     Registration Statement and the Prospectus as of the time of purchase and
     the additional time of purchase, as the case may be, as you may reasonably
     request.

     7. EFFECTIVE DATE OF AGREEMENT; TERMINATION. This Agreement shall become
effective (i) if Rule 430A under the Act is not used, when you shall have
received notification of the effectiveness of the Registration Statement, or
(ii) if Rule 430A under the Act is used, when the parties hereto have executed
and delivered this Agreement.

     The obligations of the several Underwriters hereunder shall be subject to
termination in the absolute discretion of you or any group of Underwriters
(which may include you) which has agreed to purchase in the aggregate at least
50% of the Firm Shares (i) if, since the time of execution of this Agreement or
the respective dates as of which information is given in the Registration
Statement and Prospectus, there has been any material adverse and unfavorable
change, financial or otherwise (other than as referred to in the Registration
Statement and Prospectus), in the business, prospects, properties, condition
(financial or otherwise) or results of operations of the Company and the
Subsidiaries taken as a whole, which would, in your judgment or in the judgment
of such group of Underwriters, make it impracticable to market the Shares or
(ii) if, at any time prior to the time of purchase or, with respect to the
purchase of any Additional Shares, the additional time of purchase, as


                                       20





the case may be, trading in securities on the NYSE, the American Stock Exchange
or the Nasdaq Stock Market Inc. ("Nasdaq") shall have been suspended or
limitations or minimum prices shall have been established on the NYSE, the
American Stock Exchange or the Nasdaq or (iii) if, at any time prior to the time
of purchase or, with respect to the purchase of any Additional Shares, the
additional time of purchase, as the case may be, a banking moratorium shall have
been declared either by the United States or New York State authorities, or (iv)
if, at any time prior to the time of purchase or, with respect to the purchase
of any Additional Shares, the additional time of purchase, as the case may be,
the United States shall have declared war in accordance with its constitutional
processes or there shall have occurred any material outbreak or escalation of
hostilities or other national or international calamity or crisis of such
magnitude in its effect on the financial markets of the United States as, in
your judgment or in the judgment of such group of Underwriters, to make it
impracticable to market the Shares.

     If you or any group of Underwriters elects to terminate this Agreement as
provided in this Section 7, the Company and each other Underwriter shall be
notified promptly by letter, telegram or telecopy.

     If the sale to the Underwriters of the Shares, as contemplated by this
Agreement, is not carried out by the Underwriters for any reason permitted under
this Agreement or if such sale is not carried out because the Company shall be
unable to comply with any of the terms of this Agreement, the Company shall not
be under any obligation or liability under this Agreement (except to the extent
provided in Sections 4(l), 5 and 9 hereof), and the Underwriters shall be under
no obligation or liability to the Company under this Agreement (except to the
extent provided in Section 9 hereof) or to one another hereunder.

     8. INCREASE IN UNDERWRITERS' COMMITMENTS. Subject to Sections 6 and 7, if
any Underwriter shall default in its obligation to purchase and pay for the Firm
Shares to be purchased by it hereunder (otherwise than for a reason sufficient
to justify the termination of this Agreement under the provisions of Section 7
hereof) and if the number of Firm Shares which all Underwriters so defaulting
shall have agreed but failed to purchase and pay for does not exceed 10% of the
total number of Firm Shares, the non-defaulting Underwriters shall purchase and
pay for (in addition to the aggregate number of Firm Shares they are obligated
to purchase pursuant to Section 1 hereof) the number of Firm Shares agreed to be
purchased by all such defaulting Underwriters, as hereinafter provided. Such
Firm Shares shall be purchased and paid for by such non-defaulting Underwriter
or Underwriters in such amount or amounts as you may designate with the consent
of each Underwriter so designated or, in the event no such designation is made,
such Firm Shares shall be purchased and paid for by all non-defaulting
Underwriters pro rata in proportion to the aggregate number of Firm Shares set
opposite the names of such non-defaulting Underwriters in Schedule A.

     Without relieving any defaulting Underwriter from its obligations
hereunder, the Company agrees with the non-defaulting Underwriters that it will
not sell any Firm Shares hereunder unless all of the Firm Shares are purchased
by the Underwriters (or by substituted Underwriters selected by you with the
approval of the Company or selected by the Company with your approval).

     If a new Underwriter or Underwriters are substituted by the Underwriters or
by the Company for a defaulting Underwriter or Underwriters in accordance with
the foregoing provision, the Company or you shall have the right to postpone the
time of


                                       21





purchase for a period not exceeding five business days in order that any
necessary changes in the Registration Statement and Prospectus and other
documents may be effected.

     The term Underwriter as used in this Agreement shall refer to and include
any Underwriter substituted under this Section 8 with like effect as if such
substituted Underwriter had originally been named in Schedule A.

     If the aggregate number of Shares which the defaulting Underwriter or
Underwriters agreed to purchase exceeds 10% of the total number of Shares which
all Underwriters agreed to purchase hereunder, and if neither the non-defaulting
Underwriters nor the Company shall make arrangements within the five business
day period stated above for the purchase of all the Shares which the defaulting
Underwriter or Underwriters agreed to purchase hereunder, this Agreement shall
terminate without further act or deed and without any liability on the part of
the Company to any non-defaulting Underwriter and without any liability on the
part of any non-defaulting Underwriter to the Company. Nothing in this
paragraph, and no action taken hereunder, shall relieve any defaulting
Underwriter from liability in respect of any default of such Underwriter under
this Agreement.

     9. INDEMNITY AND CONTRIBUTION.

     (a) The Company agrees to indemnify, defend and hold harmless each
Underwriter, its partners, directors, officers, employees and agents and any
person who controls any Underwriter within the meaning of Section 15 of the Act
or Section 20 of the Exchange Act, and the successors and assigns of all of the
foregoing persons from and against any loss, damage, expense, liability or claim
(including the reasonable cost of investigation) which, jointly or severally,
any such Underwriter or any such person may incur under the Act, the Exchange
Act, the common law or otherwise, insofar as such loss, damage, expense,
liability or claim arises out of or is based upon (i) any untrue statement or
alleged untrue statement of a material fact contained in the Registration
Statement (or in the Registration Statement as amended by any post-effective
amendment thereof by the Company) or in a Prospectus (the term Prospectus for
the purpose of this Section 9 being deemed to include any Preliminary
Prospectus, the Prospectus and the Prospectus as amended or supplemented by the
Company), or arises out of or is based upon any omission or alleged omission to
state a material fact required to be stated in either such Registration
Statement or Prospectus or necessary to make the statements made therein not
misleading, except insofar as any such loss, damage, expense, liability or claim
arises out of or is based upon any untrue statement or alleged untrue statement
of a material fact contained in and in conformity with information furnished by
or on behalf of any Underwriter through you to the Company expressly for use
with reference to such Underwriter in such Registration Statement or such
Prospectus or arises out of or is based upon any omission or alleged omission to
state a material fact in connection with such information required to be stated
in such Registration Statement or such Prospectus or necessary to make such
information not misleading, (ii) any untrue statement or alleged untrue
statement made by the Company in Section 3 of this Agreement or the failure by
the Company to perform when and as required any agreement or covenant contained
herein, or (iii) any untrue statement or alleged untrue statement of any
material fact contained in any audio or visual materials provided by the Company
or based upon written information furnished by or, with the approval of the
Company, on behalf of the Company including, without limitation, slides, videos,
films, tape recordings, used in connection with the marketing of the Shares;
PROVIDED, however, that, solely with regard to clause (i), the foregoing
indemnity agreement with respect to any Prospectus or Preliminary


                                       22





Prospectus shall not inure to the benefit of any Underwriter from whom the
person asserting such losses, claims, damages or liabilities purchased Shares,
or any person controlling the Underwriter, if sufficient copies of the
Prospectus were timely delivered to such Underwriter pursuant to Section 4
hereof and a copy of the Prospectus (as then amended or supplemented if the
Company shall have furnished any amendments or supplements thereto) was not
given or sent to such person, if required by law to have been delivered, at or
prior to the written confirmation of the sale of the Shares to such person, and
if the Prospectus (as so amended or supplemented) would have cured the defect
giving rise to such losses, claims, damages or liabilities.

     If any action, suit or proceeding (together, a "Proceeding") is brought
against an Underwriter or any such person in respect of which indemnity may be
sought against the Company pursuant to the foregoing paragraph, such Underwriter
or such person shall promptly notify the Company in writing of the institution
of such Proceeding and the Company shall assume the defense of such Proceeding,
including the employment of counsel reasonably satisfactory to such indemnified
party and payment of all fees and expenses related thereto; PROVIDED, HOWEVER,
that the omission to so notify the Company shall not relieve the Company from
any liability which the Company may have to any Underwriter or any such person
or otherwise. Such Underwriter or such person shall have the right to employ its
or their own counsel in any such case, but the fees and expenses of such counsel
shall be at the expense of such Underwriter or of such person unless the
employment of such counsel shall have been authorized in writing by the Company
in connection with the defense of such Proceeding or the Company shall not have,
within a reasonable period of time in light of the circumstances, employed
counsel to have charge of the defense of such Proceeding or such indemnified
party or parties shall have reasonably concluded that there may be defenses
available to it or them which are different from, additional to or in conflict
with those available to the Company (in which case the Company shall not have
the right to direct the defense of such Proceeding on behalf of the indemnified
party or parties), in any of which events such fees and expenses shall be borne
by the Company and paid as incurred (it being understood, however, that the
Company shall not be liable for the expenses of more than one separate counsel
(in addition to any local counsel) in any one Proceeding or series of related
Proceedings in the same jurisdiction representing the indemnified parties who
are parties to such Proceeding). The Company shall not be liable for any
settlement of any Proceeding effected without its prior written consent, but if
settled with the written consent of the Company, the Company agrees to indemnify
and hold harmless any Underwriter and any such person from and against any loss
or liability by reason of such settlement. Notwithstanding the foregoing
sentence, if at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for fees and expenses of
counsel as contemplated by the second sentence of this paragraph, then the
indemnifying party agrees that it shall be liable for any settlement of any
Proceeding effected without the Company's written consent if (i) such settlement
is entered into more than 60 business days after receipt by the indemnifying
party of the aforesaid request, (ii) such indemnifying party shall not have
reimbursed the indemnified party in accordance with such request prior to the
date of such settlement and (iii) such indemnified party shall have given the
indemnifying party at least 30 days' prior notice of its intention to settle. No
indemnifying party shall, without the prior written consent of the indemnified
party, effect any settlement of any pending or threatened Proceeding in respect
of which any indemnified party is or could have been a party and indemnity could
have been sought hereunder by such indemnified party, unless such settlement
includes an unconditional release of such indemnified party from all


                                       23





liability on claims that are the subject matter of such Proceeding and does not
include an admission of fault, culpability or a failure to act, by or on behalf
of such indemnified party.

     (b) Each Underwriter severally agrees to indemnify, defend and hold
harmless the Company, its directors, officers, employees and agents and any
person who controls the Company within the meaning of Section 15 of the Act or
Section 20 of the Exchange Act and the successors and assigns of all of the
foregoing persons from and against any loss, damage, expense, liability or claim
(including the reasonable cost of investigation) which, jointly or severally,
the Company or any such person may incur under the Act, the Exchange Act, the
common law or otherwise, insofar as such loss, damage, expense, liability or
claim arises out of or is based upon any untrue statement or alleged untrue
statement of a material fact contained in and in conformity with information
furnished by or on behalf of such Underwriter through you to the Company
expressly for use with reference to such Underwriter in the Registration
Statement (or in the Registration Statement as amended by any post-effective
amendment thereof by the Company) or in a Prospectus, or arises out of or is
based upon any omission or alleged omission to state a material fact in
connection with such information required to be stated in such Registration
Statement or such Prospectus or necessary to make such information not
misleading.

     If any Proceeding is brought against the Company or any such person in
respect of which indemnity may be sought against any Underwriter pursuant to the
foregoing paragraph, the Company or such person shall promptly notify such
Underwriter in writing of the institution of such Proceeding and such
Underwriter shall assume the defense of such Proceeding, including the
employment of counsel reasonably satisfactory to such indemnified party and
payment of all fees and expenses; PROVIDED, HOWEVER, that the omission to so
notify such Underwriter shall not relieve such Underwriter from any liability
which such Underwriter may have to the Company or any such person or otherwise.
The Company or such person shall have the right to employ their or its own
counsel in any such case, but the fees and expenses of such counsel shall be at
the expense of the Company or such person unless the employment of such counsel
shall have been authorized in writing by such Underwriter in connection with the
defense of such Proceeding or such Underwriter shall not have employed counsel
to defend such Proceeding or such indemnified party or parties shall have
reasonably concluded that there may be defenses available to it or them which
are different from or additional to or in conflict with those available to such
Underwriter (in which case such Underwriter shall not have the right to direct
the defense of such Proceeding on behalf of the indemnified party or parties,
but such Underwriter may employ counsel and participate in the defense thereof
but the fees and expenses of such counsel shall be at the expense of such
Underwriter), in any of which events such fees and expenses shall be borne by
such Underwriter and paid as incurred (it being understood, however, that such
Underwriter shall not be liable for the expenses of more than one separate
counsel (in addition to any local counsel) in any one Proceeding or series of
related Proceedings in the same jurisdiction representing the indemnified
parties who are parties to such Proceeding). No Underwriter shall be liable for
any settlement of any such Proceeding effected without the written consent of
such Underwriter but if settled with the written consent of such Underwriter,
such Underwriter agrees to indemnify and hold harmless the Company and any such
person from and against any loss or liability by reason of such settlement.
Notwithstanding the foregoing sentence, if at any time an indemnified party
shall have requested an indemnifying party to reimburse the indemnified party
for fees and expenses of counsel as contemplated by the second sentence of this
paragraph, then the indemnifying party agrees that it shall be liable for any
settlement of any Proceeding effected without the


                                       24





Underwriters' written consent if (i) such settlement is entered into more than
60 business days after receipt by such indemnifying party of the aforesaid
request, (ii) such indemnifying party shall not have reimbursed the indemnified
party in accordance with such request prior to the date of such settlement and
(iii) such indemnified party shall have given the indemnifying party at least 30
days' prior notice of its intention to settle. No indemnifying party shall,
without the prior written consent of the indemnified party, effect any
settlement of any pending or threatened Proceeding in respect of which any
indemnified party is or could have been a party and indemnity could have been
sought hereunder by such indemnified party, unless such settlement includes an
unconditional release of such indemnified party from all liability on claims
that are the subject matter of such Proceeding.

     (c) If the indemnification provided for in this Section 9 is unavailable to
an indemnified party under subsections (a) and (b) of this Section 9 in respect
of any losses, damages, expenses, liabilities or claims referred to therein,
then each applicable indemnifying party, in lieu of indemnifying such
indemnified party, shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, damages, expenses, liabilities or
claims (i) in such proportion as is appropriate to reflect the relative benefits
received by the Company on the one hand and the Underwriters on the other hand
from the offering of the Shares or (ii) if the allocation provided by clause (i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause (i) above but
also the relative fault of the Company on the one hand and of the Underwriters
on the other in connection with the statements or omissions which resulted in
such losses, damages, expenses, liabilities or claims, as well as any other
relevant equitable considerations. The relative benefits received by the Company
on the one hand and the Underwriters on the other shall be deemed to be in the
same respective proportions as the total proceeds from the offering (net of
underwriting discounts and commissions but before deducting expenses) received
by the Company and the total underwriting discounts and commissions received by
the Underwriters, bear to the aggregate public offering price of the Shares. The
relative fault of the Company on the one hand and of the Underwriters on the
other shall be determined by reference to, among other things, whether the
untrue statement or alleged untrue statement of a material fact or omission or
alleged omission relates to information supplied by the Company or by the
Underwriters and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission. The amount
paid or payable by a party as a result of the losses, damages, expenses,
liabilities and claims referred to in this subsection shall be deemed to include
any legal or other fees or expenses reasonably incurred by such party in
connection with investigating, preparing to defend or defending any Proceeding.

     (d) The Company and the Underwriters agree that it would not be just and
equitable if contribution pursuant to this Section 9 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 that does not take account of the
equitable considerations referred to in subsection (c) above. Notwithstanding
the provisions of this Section 9, in no case shall any Underwriter be required
to contribute any amount in excess of the amount by which the total price at
which the Shares underwritten by such Underwriter and distributed to the public
were offered to the public exceeds the amount of any damage which such
Underwriter has otherwise been required to pay by reason of such untrue
statement or alleged untrue statement or omission or alleged omission. 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 to


                                       25





contribute pursuant to this Section 9 are several in proportion to their
respective underwriting commitments and not joint.

     (e) The indemnity and contribution agreements contained in this Section 9
and the covenants, warranties and representations of the Company contained in
this Agreement shall remain in full force and effect regardless of any
investigation made by or on behalf of any Underwriter, its partners, directors,
officers, employees or agents or any person (including each partner, officer,
director, employee or agent of such person) who controls any Underwriter within
the meaning of Section 15 of the Act or Section 20 of the Exchange Act, or by or
on behalf of the Company, its directors, officers, employees or agents or any
person who controls any of the foregoing within the meaning of Section 15 of the
Act or Section 20 of the Exchange Act, and shall survive any termination of this
Agreement or the issuance and delivery of the Shares. The Company and each
Underwriter agree promptly to notify each other of the commencement of any
Proceeding against it and against any of the officers, directors, employees or
agents of the Company in connection with the issuance and sale of the Shares, or
in connection with the Registration Statement or Prospectus.

     10. NOTICES. Except as otherwise herein provided, all statements, requests,
notices and agreements shall be in writing or by telegram and, if to the
Underwriters, shall be sufficient in all respects if delivered or sent to UBS
Warburg LLC, 299 Park Avenue, New York, NY 10171-0026, Attention: Syndicate
Department; and if to the Company, shall be sufficient in all respects if
delivered or sent to the Company at the offices of the Company at 400 Centre
Street, Newton, Massachusetts 02458, Attention: Evrett W. Benton, Chief
Executive Officer and President.

     11. INFORMATION FURNISHED BY THE UNDERWRITERS. The statements set forth in
the last sentence on the cover page of the Prospectus and the statements set
forth in the fifth, seventh, eighth and ninth paragraphs under the caption
"Underwriting" in the Prospectus constitute the only information furnished by or
on behalf of the Underwriters as such information is referred to in Sections 3
and 9 hereof.

     12. GOVERNING LAW; CONSTRUCTION. This Agreement and any claim, counterclaim
or dispute of any kind or nature whatsoever arising out of or in any way
relating to this Agreement ("Claim"), directly or indirectly, shall be governed
by, and construed in accordance with, the laws of the State of New York. The
Section headings in this Agreement have been inserted as a matter of convenience
of reference and are not a part of this Agreement.

     13. SUBMISSION TO JURISDICTION. Except as set forth below, no Claim may be
commenced, prosecuted or continued in any court other than the courts of the
State of New York located in the City and County of New York or in the United
States District Court for the Southern District of New York, which courts shall
have jurisdiction over the adjudication of such matters, and you and the Company
consent to the jurisdiction of such courts and personal service with respect
thereto. The Company hereby consents to personal jurisdiction, service and venue
in any court in which any Claim arising out of or in any way relating to this
Agreement is brought by any third party against an Underwriter or any
indemnified party. Each Underwriter and the Company (on its behalf and, to the
extent permitted by applicable law, on behalf of its stockholders and
affiliates) waives all right to trial by jury in any action, proceeding or
counterclaim (whether based upon contract, tort or otherwise) in any way arising
out of or relating to this Agreement. The Company agrees that


                                       26





a final judgment in any such action, proceeding or counterclaim brought in any
such court shall be conclusive and binding thereupon, and may be enforced in any
other courts in the jurisdiction to which the Company is or may be subject, by
suit upon such judgment.

     14. PARTIES AT INTEREST. The Agreement herein set forth has been and is
made solely for the benefit of the Underwriters, the Company and, to the extent
provided in Section 9 hereof, the controlling persons, directors and officers
referred to in such section, and their respective successors, assigns, heirs,
personal representatives and executors and administrators. No other person,
partnership, association or corporation (including a purchaser, as such
purchaser, from any of the Underwriters) shall acquire or have any right under
or by virtue of this Agreement.

     15. COUNTERPARTS. This Agreement may be signed by the parties in one or
more counterparts which together shall constitute one and the same agreement
among the parties.

     16. SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon the
Underwriters and the Company and their successors and assigns and any successor
or assign of any substantial portion of the Company's and any of the
Underwriters' respective businesses and/or assets.

     17. MISCELLANEOUS. UBS Warburg LLC, an indirect, wholly owned subsidiary of
UBS AG, is not a bank and is separate from any affiliated bank, including any
U.S. branch or agency of UBS Warburg LLC. Because UBS Warburg LLC is a
separately incorporated entity, it is solely responsible for its own contractual
obligations and commitments, including obligations with respect to sales and
purchases of securities. Securities sold, offered or recommended by UBS Warburg
LLC are not deposits, are not insured by the Federal Deposit Insurance
Corporation, are not guaranteed by a branch or agency, and are not otherwise an
obligation or responsibility of a branch or agency.

     A lending affiliate of UBS Warburg LLC may have lending relationships with
issuers of securities underwritten or privately placed by UBS Warburg LLC. To
the extent required under the securities laws, prospectuses and other disclosure
documents for securities underwritten or privately placed by UBS Warburg LLC
will disclose the existence of any such lending relationships and whether the
proceeds of the issue will be used to repay debts owed to affiliates of UBS
Warburg LLC.





                                       27





     If the foregoing correctly sets forth the understanding among the Company
and the Underwriters, please so indicate in the space provided below for the
purpose, whereupon this letter and your acceptance shall constitute a binding
agreement among the Company and the several Underwriters.

                                            Very truly yours,

                                            FIVE STAR QUALITY CARE, INC.


                                            By:
                                                  ------------------------------
                                                  Name:
                                                  Title:



Accepted and agreed to as of the date first above written:

UBS WARBURG LLC
FIRST UNION SECURITIES, INC.
JEFFERIES & COMPANY, INC.
As Representatives of the several Underwriters

By:      UBS WARBURG LLC



By:      _________________________
         Name:
         Title:



By:      _________________________
         Name:
         Title:







                                       28






                                   SCHEDULE A


UNDERWRITER                                           NUMBER OF FIRM SHARES

UBS Warburg LLC......................................
First Union Securities, Inc..........................
Jefferies & Company, Inc.............................



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

       Total.........................................        =============
















                                       1





                                   SCHEDULE B
                                  SUBSIDIARIES


       NAME                                   JURISDICTION OF INCORPORATION
       ----                                   -----------------------------














                                       1





                                   SCHEDULE C
                              DELAWARE SUBSIDIARIES






















                                       2





                                   SCHEDULE D

                              MARYLAND SUBSIDIARIES

























                                       3