HEALTH & RETIREMENT PROPERTIES TRUST
S-3/A, 1997-05-29
REAL ESTATE INVESTMENT TRUSTS
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       As filed with the Securities and Exchange Commission on May 28,1997
                                                   Registration No. 333-26887
    
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             -----------------------
   
                          PRE-EFFECTIVE AMENDMENT NO. 1
                                       TO
    
                                    FORM S-3

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             -----------------------
                     HEALTH AND RETIREMENT PROPERTIES TRUST
             (Exact name of registrant as specified in its charter)
                             -----------------------
           Maryland                                      04-6558834
 (State or other jurisdiction of                     (I.R.S. Employer 
incorporation or organization)                    Identification Number)

                                400 Centre Street
                           Newton, Massachusetts 02158
                                 (617) 332-3990
       (Address, including zip code, and telephone number, including area
               code, of registrant's principal executive offices)
                              ---------------------

                           David J. Hegarty, President
                     Health and Retirement Properties Trust
                                400 Centre Street
                           Newton, Massachusetts 02158
                                 (617) 332-3990
              (Name, address, including zip code, telephone number,
                   including area code, of agent for service)
                              ---------------------

                                    Copy to:
                       Alexander A. Notopoulos, Jr., Esq.
                            Sullivan & Worcester LLP
                             One Post Office Square
                           Boston, Massachusetts 02109
                                 (617) 338-2800
                              ---------------------

         Approximate  date of commencement of proposed sale to the public:  From
time  to  time or at one  time  after  the  effective  date of the  Registration
Statement  as  determined  by the  Registrant.  If  the  only  securities  being
registered  on this Form are being  offered  pursuant  to  dividend  or interest
reinvestment plans, please check the following box. |_|
         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933, check the following box. |X|
         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. |_| _____________
         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_| _____________
         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following box. |_|
                             -----------------------
       
         The Registrant hereby amends this  Registration  Statement on such date
or dates as may be necessary to delay its  effective  date until the  Registrant
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
       
THE PROSPECTUS CONTAINED HEREIN IS A COMBINED PROSPECTUS PURSUANT TO RULE 429(A)
OF THE RULES AND REGULATIONS UNDER THE SECURITIES ACT OF 1933, AS AMENDED, WHICH
ALSO  RELATES TO  $129,903,125  IN DEBT  SECURITIES,  COMMON  SHARES,  PREFERRED
SHARES,  DEPOSITORY SHARES AND WARRANTS  INCLUDED IN THE COMPANY'S  REGISTRATION
STATEMENT ON FORM S-3 (FILE NO. 333-02863).
<PAGE>
Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there by any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.
   
                              Subject to Completion
                    Preliminary Prospectus Dated May __, 1997
    
PROSPECTUS

                                 $1,000,000,000
                     Health and Retirement Properties Trust
 Debt Securities, Preferred Shares of Beneficial Interest, Depositary Shares, 
               Common Shares of Beneficial Interest and Warrants

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

     Health and  Retirement  Properties  Trust (the "Company" or "HRP") may from
time to time offer in one or more series (i) its unsecured debt  securities (the
"Debt Securities"),  (ii) its preferred shares of beneficial interest, par value
$.01  per  share  (the  "Preferred  Shares"),  (iii)  fractional  shares  of the
Preferred Shares (the "Depositary Shares"), (iv) its common shares of beneficial
interest,  par value $.01 per share (the  "Common  Shares"),  or (v) warrants to
purchase any of the above securities (the "Warrants"),  with an aggregate public
offering price of up to  $1,000,000,000 on terms to be determined at the time of
offering.  The Debt Securities,  Preferred  Shares,  Depositary  Shares,  Common
Shares and Warrants  (collectively,  the "Offered  Securities")  may be offered,
separately or together,  in separate series, in amounts,  at prices and on terms
to be set forth in a supplement to this Prospectus (a "Prospectus Supplement").

     The  specific  terms of the  Offered  Securities  in  respect of which this
Prospectus is being  delivered  will be set forth in the  applicable  Prospectus
Supplement  and  will  include,  where  applicable:  (i) in  the  case  of  Debt
Securities,  the specific title,  aggregate  principal  amount,  currency,  form
(which may be  registered  or bearer,  or  certificated  or global),  authorized
denominations,  maturity,  rate (or manner of  calculation  thereof) and time of
payment  of  interest,  terms for  redemption  at the  option of the  Company or
repayment at the option of the holder,  terms for sinking fund  payments,  terms
for conversion into Preferred Shares,  Depositary Shares or Common Shares, terms
for  subordination  to other  indebtedness  of the Company,  any original  issue
discount and any initial public  offering  price;  (ii) in the case of Preferred
Shares,  the  specific  title  and  stated  value,  any  dividend,  liquidation,
redemption, conversion, voting and other rights, and any initial public offering
price;  (iii)  in the  case of  Depositary  Shares,  the  fractional  shares  of
Preferred  Shares  represented  by each  Depositary  Share,  (iv) in the case of
Common  Shares,  any  offering  price;  and  (v) in the  case of  Warrants,  the
securities to which they relate,  duration,  offering price,  exercise price and
detachability.

     The applicable Prospectus  Supplement will also contain information,  where
applicable,  about  certain  United  States  federal  income tax  considerations
relating to, and any listing on a securities exchange of, the Offered Securities
covered by such Prospectus Supplement.
                             ----------------------

    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
       AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
       THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COM-
        MISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                             ----------------------

     The Offered  Securities may be offered directly,  through agents designated
from time to time by the Company or to or through  underwriters  or dealers.  If
any  agents  or  underwriters  are  involved  in the sale of any of the  Offered
Securities,  their names, and any applicable  purchase price, fee, commission or
discount  arrangement  between  or among  them,  will be set  forth,  or will be
calculable  from  the  information  set  forth,  in an  accompanying  Prospectus
Supplement.  See  "Plan of  Distribution."  No  Offered  Securities  may be sold
without delivery of a Prospectus  Supplement  describing the method and terms of
the offering of such Offered Securities.
                             ----------------------

              The date of this Prospectus is ______________, 1997.
<PAGE>

     No  person  has  been  authorized  to give any  information  or to make any
representations  other than those contained or incorporated by reference in this
Prospectus in connection  with the offer  contained in this  Prospectus  and, if
given or made, such  information or  representations  must not be relied upon as
having been  authorized by the Company or any  underwriters,  agents or dealers.
This Prospectus does not constitute an offer to sell or solicitation of an offer
to buy  securities in any  jurisdiction  to any person to whom it is unlawful to
make such offer or solicitation. Neither the delivery of this Prospectus nor any
sale made hereunder shall, under any  circumstances,  create an implication that
there has been no change in the  affairs  of the  Company  and its  subsidiaries
since the date hereof or the information  contained or incorporated by reference
herein is correct at any time subsequent to the date hereof.

                              AVAILABLE INFORMATION

     The Company has filed with the  Securities  and  Exchange  Commission  (the
"Commission")  in  Washington,  D.C.,  a  registration  statement  on  Form  S-3
(together with all exhibits, schedules and amendments thereto, the "Registration
Statement") under the Securities Act of 1933, as amended (the "Securities Act"),
with respect to the Offered Securities. This Prospectus,  which is a part of the
Registration Statement, does not contain all of the information set forth in the
Registration Statement.  Statements in this Prospectus as to the contents of any
contract or other document are not  necessarily  complete,  and in each instance
reference is made to the copy of such  contract or other  documents  filed as an
exhibit to the  Registration  Statement,  each such statement being qualified in
all  respects by such  reference  and the exhibits and  schedules  thereto.  For
further information concerning the Company and the Offered Securities, reference
is made to the Registration Statement.  Copies of the Registration Statement may
be obtained from the Commission at its principal office in Washington, D.C. upon
payment of the prescribed fee.

     The Company is subject to the informational  requirements of the Securities
Exchange  Act of 1934,  as amended  (the  "Exchange  Act"),  and, in  accordance
therewith,  files  reports  and  other  information  with  the  Commission.  The
Registration  Statement,  the exhibits and schedules  forming a part thereof and
the reports,  proxy statements and other  information  filed by the Company with
the  Commission  can be inspected  and copies  obtained at the public  reference
facilities maintained by the Commission at Judiciary Plaza, Room 1024, 450 Fifth
Street, N.W.,  Washington,  D.C. 20549, and at the following regional offices of
the Commission:  Chicago Regional  Office,  Suite 1400, 500 West Madison Street,
Chicago,  Illinois  60661-2511;  and New York Regional Office, Seven World Trade
Center,  New York,  New York 10048.  Copies of such  material can be obtained at
prescribed  rates from the Public  Reference  Section of the  Commission  at its
principal  office  at 450  Fifth  Street,  N.W.,  Washington,  D.C.  20549.  The
Commission  maintains  a World Wide Web site that  contains  reports,  proxy and
information  statements and other information regarding  registrants,  including
the Company,  that file electronically  with the Commission.  The address of the
site is  http://www.sec.gov.  The Company's  Common Shares are traded on the New
York Stock  Exchange  ("NYSE")  under the symbol "HRP," and similar  information
concerning  the Company may be  inspected  at the office of the NYSE at 20 Broad
Street, New York, New York 10005.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

   
     The following documents, which have been filed with the Commission pursuant
to the Exchange Act, are hereby incorporated in this Prospectus and specifically
made a part hereof by reference:  (i) the  Company's  Annual Report on Form 10-K
for the fiscal year ended  December  31, 1996 (the  "Annual  Report"),  (ii) the
Company's  Quarterly  Report on Form 10-Q for the quarter  ended March 31, 1997,
(iii)  the  information  in Item 5,  Other  Events,  under  the  caption  "Legal
Proceedings"  contained  in the  Company's  Current  Report  on Form  8-K  dated
February 13, 1997, (iv) the Company's Current Reports on Form 8-K dated February
17,  1997 and March 14,  1997,  (v) the  consolidated  financial  statements  of
Marriott  International,  Inc. ("MII"), at and for the fiscal year ended January
3, 1997,  as contained  in MII's  Annual  Report on Form 10-K for the year ended

                                      (ii)
<PAGE>

January 3, 1997 (Commission  File No. 1-12188),  and (vi) the description of the
Company's  Common Shares  contained in the Company's  Registration  Statement on
Form 8-A dated November 8, 1986, as amended by Form 8 dated July 30,
1991. All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the  Exchange Act (i)  subsequent  to the date of this  Prospectus  and
prior to the  termination  of the  offering of the Offered  Securities  and (ii)
subsequent to the date of the first pre-effective  amendment to the registration
statement of which this Prospectus  forms a part and prior to  effectiveness  of
such registration statement shall be deemed to be incorporated by reference into
this  Prospectus and to be a part hereof from the respective  dates of filing of
such documents.
    

     Any statement  contained herein or in a document  incorporated or deemed to
be incorporated herein by reference shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement  contained herein
(or in the  applicable  Prospectus  Supplement),  or in any  subsequently  filed
document  that  also is or is  deemed to be  incorporated  herein by  reference,
modifies  or  supersedes  such  statement.  Any such  statement  so  modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute a part of this Prospectus.

     The Company hereby  undertakes to provide  without charge to each person to
whom this  Prospectus  is  delivered,  upon the written or oral  request of such
person, a copy of any and all of the information  that has been  incorporated by
reference  in this  Prospectus  (excluding  exhibits  unless such  exhibits  are
specifically incorporated by reference into the information that this Prospectus
incorporates).  Requests  for such  copies  should be made to the Company at its
principal executive offices,  400 Centre Street,  Newton,  Massachusetts  02158,
Attention: Investor Relations, telephone (617) 332-3990.


                                      (iii)

<PAGE>

                                   THE COMPANY

     The  Company is a real  estate  investment  trust  ("REIT")  which  invests
primarily in retirement  communities,  assisted living  centers,  long-term care
facilities  and other  income  producing  healthcare  related real estate and in
office buildings leased to various agencies of the United States government.  At
May 1, 1997, the Company had  investments  totaling (at cost) over $1.7 billion,
of which  approximately  68%  represented  healthcare  related  properties,  26%
represented U.S. Government-leased office buildings and 6% represented an equity
investment  in  Hospitality   Properties   Trust  ("HPT"),   a  New  York  Stock
Exchange-listed  REIT  founded by the  Company  which  invests  in  hotels.  The
Company's  investments  on such date were in over 200  properties  located in 32
states.  Additionally,  on May 1, 1997,  HPT owned and leased an aggregate of 92
hotels located in 29 states.

     The Company is organized as a Maryland real estate  investment  trust.  The
Company's   principal   place  of  business  is  400  Centre   Street,   Newton,
Massachusetts 02158 and its telephone number is (617) 332-3990.

                                 USE OF PROCEEDS

     Unless otherwise  described in the applicable  Prospectus  Supplement,  the
Company intends to use the net proceeds from the sale of the Offered  Securities
for general  business  purposes,  which may include the acquisition of, or other
investments in, retirement communities,  assisted living centers, long-term care
facilities or other health care related properties or government-leased or other
office  buildings and the repayment of indebtedness  outstanding at such time or
the  reduction of amounts  outstanding  under the Company's  credit  facilities.
Pending  utilization  as set  forth  above,  the  proceeds  from the sale of the
Offered  Securities  will be  invested  in  short  term  investments,  including
repurchase agreements. Such investments may not be investment grade.

                       RATIO OF EARNINGS TO FIXED CHARGES

     The  following  table  sets  forth  the  Company's  consolidated  ratios of
earnings to fixed charges for the periods indicated:
<TABLE>
<CAPTION>

   
                                                                                For the year ended December 31,
                                         For the quarter ended   ---------------------------------------------------------
                                            March 31, 1997          1996       1995         1994        1993         1992
                                            --------------          ----       ----         ----        ----         ----
<S>                                             <C>                <C>        <C>          <C>         <C>          <C>
Ratio of earnings to fixed charges               3.4x               4.3x       3.4x         6.7x        6.8x         3.6x
    
</TABLE>


     The ratios of earnings to fixed  charges  presented  above were computed by
dividing the Company's  earnings by fixed  charges.  For this purpose,  earnings
have been  calculated  by adding fixed  charges to income  before  income taxes,
extraordinary items and gain or loss on the disposition of real property.  Fixed
charges consist of interest costs, whether expensed or capitalized, the interest
component of rental expense, if any, amortization of debt discounts and deferred
financing costs,  whether expensed or capitalized.  To date, the Company has not
issued any Preferred Shares;  therefore, the ratio of earnings to combined fixed
charges  and  Preferred  Shares  distributions  are the  same as the  ratios  of
earnings to fixed charges presented above.

                         DESCRIPTION OF DEBT SECURITIES

     The  Debt  Securities  will be  issued  under  one or more  indentures  (an
"Indenture")  between the Company and a trustee (an  "Indenture  Trustee").  Any
Indenture will be subject to, and governed by, the Trust  Indenture Act of 1939,
as amended (the "TIA"). The statements made hereunder relating to any Indentures
and the Debt  Securities  to be  issued  thereunder  are  summaries  of  certain
anticipated provisions thereof and do not purport to be complete and are subject
to, and are qualified in their  entirety by reference to, all  provisions of the
Indentures and such Debt Securities.


                                       1
<PAGE>

General

     The Company has filed with its  Registration  Statement with respect to the
Offered  Securities a form of Indenture (as supplemented  from time to time, the
"Senior Indenture") relating to the Senior Securities (as defined) and a form of
Indenture (as  supplemented  from time to time,  the  "Subordinated  Indenture")
relating to the Subordinated  Securities (as defined).  The Debt Securities will
be direct,  unsecured obligations of the Company and, if issued under the Senior
Indenture, will rank equally and ratably with other unsecured and unsubordinated
indebtedness of the Company (the "Senior  Securities"),  or, if issued under the
Subordinated  Indenture,  will be  subordinated in right of payment to the prior
payment in full of Senior Indebtedness (as defined in the applicable  Prospectus
Supplement)  ("Subordinated  Securities").   See  "--Subordination".   The  Debt
Securities may be issued without limit as to aggregate  principal amount, in one
or more series,  in each case as established from time to time in or pursuant to
authority  granted by a resolution  of the Board of Trustees of the Company (the
"Trustees")  or as  established in one or more  indentures  supplemental  to any
Indenture. All Debt Securities of one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the holders of the Debt  Securities of such series,  for issuances of additional
Debt Securities of such series.

     It is anticipated that any Indenture will provide that the Company may, but
need  not,  designate  more than one  Indenture  Trustee  thereunder,  each with
respect to one or more series of Debt  Securities.  Any Indenture  Trustee under
any  Indenture  may resign or be removed  with  respect to one or more series of
Debt Securities,  and a successor Indenture Trustee may be appointed to act with
respect  to such  series.  In the event that two or more  persons  are acting as
Indenture Trustee with respect to different series of Debt Securities, each such
Indenture  Trustee shall be a trustee of a trust under the applicable  Indenture
separate and apart from the trust  administered by any other Indenture  Trustee,
and, except as otherwise  indicated  herein,  any action  described herein to be
taken by the Indenture  Trustee may be taken by each such Indenture Trustee with
respect to, and only with respect to, the one or more series of Debt  Securities
for which it is Indenture Trustee under the applicable Indenture.

     Reference is made to the  Prospectus  Supplement  relating to the series of
Debt Securities being offered for the specific terms thereof,  including,  where
applicable, the following:

     (1)  the title of such Debt Securities and whether such Debt Securities are
          Senior Securities or Subordinated Securities;

     (2)  the aggregate  principal  amount of such Debt Securities and any limit
          on such aggregate principal amount;

     (3)  the percentage of the principal  amount at which such Debt  Securities
          will be issued and, if other than the principal  amount  thereof,  the
          portion of the principal  amount thereof  payable upon  declaration of
          acceleration of the maturity  thereof,  or (if applicable) the portion
          of the principal  amount of such Debt Securities which is convertible,
          or the method by which any such portion shall be determined;

     (4)  if   convertible,   the  terms  on  which  such  Debt  Securities  are
          convertible,  including the initial  conversion  price or rate and the
          conversion  period and any applicable  limitations on the ownership or
          transferability  of the securities into which such Debt Securities are
          convertible;

     (5)  the date or dates, or the method for  determining  such date or dates,
          on which the principal of such Debt Securities will be payable;

     (6)  the rate or rates (which may be fixed or  variable),  or the method by
          which  such  rate or rates  shall be  determined,  at which  such Debt
          Securities will bear interest, if any;

     (7)  the date or dates, or the method for  determining  such date or dates,
          from  which  any  interest  will  accrue,  the dates on which any such
          interest will be payable,  the record dates for such interest  payment
          dates,  or the method by which any such date shall be determined,  the
          person to whom such  interest  shall be  payable,  and the basis  upon
          which  interest  shall be  calculated  if other than that of a 360-day
          year of 12 months consisting of 30 days each;

                                       2
<PAGE>


     (8)  the place or places where the  principal  of, any premium and interest
          on,  and any  additional  amounts  payable  in  respect  of such  Debt
          Securities  will be payable,  such Debt  Securities may be surrendered
          for conversion or  registration of transfer or exchange and notices or
          demands to or upon the Company in respect of such Debt  Securities and
          the applicable Indenture may be served;

     (9)  the period or periods  within which,  the price or prices at which and
          the terms and  conditions  upon  which  such  Debt  Securities  may be
          redeemed,  as a whole or in part, at the option of the Company, if the
          Company is to have such an option;

     (10) the  obligation,  if any, of the Company to redeem,  repay or purchase
          such  Debt  Securities  pursuant  to any  sinking  fund  or  analogous
          provision  or at the  option of a holder  thereof,  and the  period or
          periods  within which,  the price or prices at which and the terms and
          conditions upon which such Debt Securities will be redeemed, repaid or
          purchased, as a whole or in part, pursuant to such obligation;

     (11) if other than U.S.  dollars,  the currency or currencies in which such
          Debt Securities are  denominated  and payable,  which may be a foreign
          currency  or units of two or more  foreign  currencies  or a composite
          currency or currencies, and the terms and conditions relating thereto;

     (12) if the  principal  of or  premium,  if any,  or  interest on such Debt
          Securities  is to be  payable,  at the  election  of the  Company or a
          holder thereof, in one or more currencies or currency units other than
          that or those in which such Debt  Securities are stated to be payable,
          the  currency,  currencies  or currency  units in which payment of the
          principal of and premium,  if any, and interest on Debt  Securities of
          such series as to which such  election  is made shall be payable,  and
          the periods within which and the terms and conditions  upon which such
          election is to be made;

     (13) whether the amount of payments of principal of (and  premium,  if any)
          or interest,  if any, on such Debt  Securities may be determined  with
          reference to an index,  formula or other method (which index,  formula
          or method  may,  but need  not,  be based on a  currency,  currencies,
          currency unit or units or composite  currency or  currencies)  and the
          manner in which such amounts shall be determined;

     (14) the events of default or  covenants  of such Debt  Securities,  to the
          extent  different from or in addition to those described  herein,  and
          any  provisions  granting  special  rights to the holders of such Debt
          Securities upon the occurrence of events  specified in such Prospectus
          Supplement;

     (15) whether such Debt  Securities  will be issued in  certificated  and/or
          book-entry form;

     (16) whether such Debt Securities will be in registered or bearer form and,
          if in registered form, the denominations  thereof if other than $1,000
          and  any  integral  multiple  thereof  and,  if in  bearer  form,  the
          denominations thereof and terms and conditions relating thereto;

     (17) whether any of such Debt  Securities  are to be issuable in  permanent
          global  form  (a  "Global   Security")  and,  if  so,  the  terms  and
          conditions,  if any, upon which  interests in such Debt  Securities in
          global form may be exchanged,  in whole or in part, for the individual
          Debt Securities represented thereby;

     (18) the applicability,  if any, of the defeasance and covenant  defeasance
          provisions described herein or any modification thereof;

     (19) if such Debt  Securities  are to be issued  upon the  exercise of debt
          warrants,  the time,  manner and place for such Debt  Securities to be
          authenticated and delivered;

                                       3
<PAGE>


     (20) whether and under what  circumstances  the Company will pay additional
          amounts on such Debt  Securities in respect of any tax,  assessment or
          governmental  charge  and, if so,  whether  the Company  will have the
          option to redeem such Debt  Securities in lieu of making such payment;
          and

     (21) any other terms of such Debt Securities.

     The Debt Securities may provide for less than the entire  principal  amount
thereof to be payable upon  declaration of acceleration of the maturity  thereof
("Original Issue Discount Securities"). If material or applicable,  special U.S.
federal income tax, accounting and other  considerations  applicable to Original
Issue  Discount  Securities  will  be  described  in the  applicable  Prospectus
Supplement.

     Except as described under  "--Merger,  Consolidation  or Sale" or as may be
set forth in any Prospectus Supplement,  an Indenture will not contain any other
provisions that would limit the ability of the Company to incur  indebtedness or
that would afford  holders of the Debt  Securities  protection in the event of a
highly  leveraged  or  similar  transaction  involving  the  Company.   However,
restrictions on ownership and transfers of the Company's capital stock, designed
to  preserve  its  status as a REIT,  may act to  prevent  or hinder a change of
control. See "Redemption; Business Combinations and Control Share Acquisitions."
Reference is made to the applicable  Prospectus  Supplement for information with
respect to any deletions  from,  modifications  of or additions to the events of
default or  covenants  that are  described  below,  including  any addition of a
covenant or other provisions providing event risk or similar protection.

Denominations, Interest, Registration and Transfer

     Unless otherwise  described in the applicable  Prospectus  Supplement,  the
Debt  Securities  of any  series  which are  registered  securities,  other than
registered  securities issued in global form (which may be of any denomination),
shall be issuable in denominations of $1,000 and any integral multiple thereof.

     Unless otherwise  specified in the applicable  Prospectus  Supplement,  the
principal of (and premium, if any) and interest on any series of Debt Securities
will be payable at the corporate trust office of the Indenture Trustee,
initially at the address  which will be set forth in the  applicable  Prospectus
Supplement; provided that, at the option of the Company, payment of interest may
be made by check  mailed to the  address  of the person  entitled  thereto as it
appears in the  applicable  register or by wire transfer of funds to such person
at an account maintained within the United States.

     Any  interest  not  punctually  paid or duly  provided  for on any interest
payment  date  with  respect  to a Debt  Security  ("Defaulted  Interest")  will
forthwith  cease to be payable to the holder on the  applicable  regular  record
date and may either be paid to the person in whose  name such Debt  Security  is
registered  at the close of  business  on a special  record  date (the  "Special
Record  Date") for the  payment of such  Defaulted  Interest  to be fixed by the
applicable  Indenture  Trustee,  notice  whereof shall be given to the holder of
such Debt  Security not less than 10 days prior to such Special  Record Date, or
may be paid at any  time in any  other  lawful  manner,  all as more  completely
described in the applicable Indenture.

     Subject to  certain  limitations  imposed  upon Debt  Securities  issued in
book-entry  form,  the Debt  Securities of any series will be  exchangeable  for
other  Debt  Securities  of the same  series and of a like  aggregate  principal
amount and tenor of different  authorized  denominations  upon surrender of such
Debt  Securities  at the  corporate  trust  office of the  applicable  Indenture
Trustee.  In  addition,   subject  to  certain  limitations  imposed  upon  Debt
Securities  issued in book-entry  form, the Debt Securities of any series may be
surrendered for conversion or registration of transfer  thereof at the corporate
trust  office  of  the  applicable   Indenture  Trustee.   Every  Debt  Security
surrendered for  conversion,  registration of transfer or exchange shall be duly
endorsed or accompanied by a written  instrument of transfer.  No service charge
will  be  made  for  any  registration  of  transfer  or  exchange  of any  Debt
Securities,  but the Indenture  Trustee or the Company may require  payment of a
sum  sufficient  to  cover  any tax or  other  governmental  charge  payable  in
connection  therewith.  If the applicable  Prospectus  Supplement  refers to any
transfer agent (in addition to the Indenture  Trustee)  initially  designated by
the Company  with respect to any series of Debt  Securities,  the Company may at
any time rescind the  designation of any such transfer agent or approve a change

                                       4
<PAGE>

in the location  through  which any such  transfer  agent acts,  except that the
Company  will be required to maintain a transfer  agent in each place of payment
for such  series.  The Company  may at any time  designate  additional  transfer
agents with respect to any series of Debt Securities.

     Neither  the  Company nor any  Indenture  Trustee  shall be required to (i)
issue, register the transfer of or exchange Debt Securities of any series during
a period  beginning  at the opening of business 15 days before any  selection of
Debt  Securities  of that  series  to be  redeemed  and  ending  at the close of
business  on (a) if  such  Debt  Securities  are  issuable  only  as  registered
securities,  the day of the mailing of the relevant notice of redemption and (b)
if such Debt Securities are issuable as bearer securities,  the day of the first
publication of the relevant notice of redemption or, if such Debt Securities are
also issuable as registered securities and there is no publication,  the mailing
of the  relevant  notice of  redemption,  or (ii) to register the transfer of or
exchange any registered security so selected for redemption in whole or in part,
except,  in the case of any  registered  security to be  redeemed  in part,  the
portion thereof not to be redeemed,  or (iii) to exchange any bearer security so
selected for redemption  except that such a bearer security may be exchanged for
a  registered  security  of that  series  and like  tenor;  provided  that  such
registered security shall be simultaneously  surrendered for redemption, or (iv)
to issue,  register the transfer of or exchange any Debt Security which has been
surrendered  for repayment at the option of the holder,  except the portion,  if
any, of such Debt Security not to be so repaid.

Merger, Consolidation or Sale

     The  Company  may  consolidate  with,  or  sell,  lease  or  convey  all or
substantially  all of its assets to, or merge  with or into,  any other  entity;
provided  that (i)  either the  Company  shall be the  continuing  entity or the
successor  entity (if other than the Company)  formed by or  resulting  from any
such  consolidation  or merger or which shall have received the transfer of such
assets shall expressly assume payment of the principal of (and premium,  if any)
and interest on all of the Debt Securities and the due and punctual  performance
and  observance  of  all  of  the  covenants  and  conditions  contained  in any
Indenture; (ii) immediately after giving effect to such transaction and treating
any indebtedness which becomes an obligation of the Company or any subsidiary as
a result  thereof as having been  incurred by the Company or such  subsidiary at
the time of such  transaction,  no event of default under any Indenture,  and no
event which,  after notice or the lapse of time,  or both,  would become such an
event of default, shall have occurred and be continuing;  and (iii) an officer's
certificate and legal opinion covering such conditions shall be delivered to the
Indenture Trustee.

Certain Covenants

     Existence. Except as permitted under "--Merger, Consolidation or Sale," the
Company  will be  required  to do or cause to be done all  things  necessary  to
preserve  and keep in full  force and  effect its  corporate  existence,  rights
(charter and  statutory) and  franchises;  provided,  however,  that the Company
shall not be required to preserve any right or franchise if it  determines  that
the preservation thereof is no longer desirable in the conduct of its business.

     Provision of Financial  Information.  Whether or not the Company is subject
to Section 13 or 15(d) of the  Exchange  Act,  the Company  will,  to the extent
permitted  under the Exchange Act, file with the Commission the annual  reports,
quarterly reports and other documents which the Company would have been required
to file with the Commission pursuant to such Section 13 or 15(d) (the "Financial
Statements") if the Company were so subject, such documents to be filed with the
Commission on or prior to the respective  dates (the "Required Filing Dates") by
which the  Company  would have been  required so to file such  documents  if the
Company  were so subject.  The Company will also in any event (i) within 15 days
of each  Required  Filing  Date  (a)  transmit  by mail to all  holders  of Debt
Securities,  as their  names  and  addresses  appear in the  Company's  security
register,  without  cost to such  holders,  copies  of the  annual  reports  and
quarterly  reports  which the Company  would have been required to file with the
Commission  pursuant to Section 13 or 15(d) of the  Exchange  Act if the Company
were  subject  to such  Sections,  and (b) file  with the  applicable  Indenture
Trustee  copies of the annual  reports,  quarterly  reports and other  documents
which the Company would have been required to file with the Commission  pursuant
to Section 13 or 15(d) of the  Exchange  Act if the Company were subject to such
Sections,  and (ii) if filing such  documents by the Company with the Commission
is not  permitted  under the Exchange  Act,  promptly  upon written  request and
payment of the  reasonable  cost of duplication  and delivery,  supply copies of
such documents to any prospective holder of Debt Securities.

                                       5
<PAGE>

     Additional Covenants.  Any additional or different covenants of the Company
with  respect  to any  series  of  Debt  Securities  will  be set  forth  in the
applicable Prospectus Supplement.

Events of Default, Notice and Waiver

     Each  Indenture  will  provide  that the  following  events are  "Events of
Default" with respect to any series of Debt Securities  issued  thereunder;  (a)
default for 30 days in the payment of any  installment  on any Debt  Security of
such series; (b) default in the payment of the principal of (or premium, if any,
on) any Debt Security of such series at its maturity;  (c) default in making any
sinking  fund  payments as required for any Debt  Security of such  series;  (d)
default in the performance of any other covenant of the Company contained in the
applicable  Indenture  (other than a covenant added to such Indenture solely for
the benefit of a series of Debt  Securities  issued  thereunder  other than such
series),  such default  having  continued  for 60 days after  written  notice as
provided in such Indenture; (e) default in the payment of an aggregate principal
amount  exceeding a specified  dollar amount of any evidence of  indebtedness of
the Company or any  mortgage,  indenture  or other  instrument  under which such
indebtedness is issued or by which such  indebtedness  is secured,  such default
having  occurred after the expiration of any applicable  grace period and having
resulted in the acceleration of the maturity of such  indebtedness,  but only if
such  indebtedness  is not discharged or such  acceleration  is not rescinded or
annulled;  (f) certain events of bankruptcy,  insolvency or  reorganization,  or
court  appointment  of a receiver,  liquidator  or trustee of the Company or any
Significant  Subsidiary  (as  hereinafter  defined)  or any of their  respective
property;  and (g) any  other  event  of  default  provided  with  respect  to a
particular series of Debt Securities.  The term  "Significant  Subsidiary" means
each significant  subsidiary (as defined in Regulation S-X promulgated under the
Securities Act) of the Company.

     If an Event of Default (other than an Event of Default  described in clause
(f) above) under any Indenture with respect to Debt  Securities of any series at
the time  outstanding  occurs  and is  continuing,  then in every  such case the
applicable  Indenture  Trustee or the  holders  of not less than a  majority  in
principal  amount of the outstanding  Debt Securities of that series may declare
the  principal  amount (or, if the Debt  Securities  of that series are Original
Issue Discount Securities or indexed  securities,  such portion of the principal
amount as may be specified in the terms  thereof) of all of the Debt  Securities
of that series to be due and payable  immediately  by written  notice thereof to
the Company (and to the applicable  Indenture  Trustee if given by the holders).
If an Event of Default  described  in clause (f) above with  respect to the Debt
Securities  of any series at the time  outstanding  shall occur,  the  principal
amount of all the Debt  Securities  of that  series (or, in the case of any such
Original Issue Discount Security or other Debt Security,  such specified amount)
will  automatically,  and  without  any action by the  Indenture  Trustee or any
holder of such series of Debt  Securities,  become  immediately due and payable.
However,  at any time after such a declaration of  acceleration  with respect to
Debt Securities of such series (or of all Debt Securities then outstanding under
the  applicable  Indenture,  as the  case may be) has been  made,  but  before a
judgment  or  decree  for  payment  of the money  due has been  obtained  by the
applicable  Indenture  Trustee,  the  holders  of not less  than a  majority  in
principal  amount of outstanding  Debt Securities of such series (or of all Debt
Securities then outstanding under the applicable Indenture,  as the case may be)
may rescind and annul such  declaration and its  consequences if (i) the Company
shall have deposited with the applicable Indenture Trustee all required payments
of the principal of (and premium, if any) and interest on the Debt Securities of
such series (or of all Debt  Securities  then  outstanding  under the applicable
Indenture,  as the case may be), plus certain fees, expenses,  disbursements and
advances of the applicable  Indenture  Trustee,  and (ii) all Events of Default,
other than the  non-payment  of  accelerated  principal  (or  specified  portion
thereof),  or premium, if any, or interest on the Debt Securities of such series
(or of all Debt Securities then outstanding under the applicable  Indenture,  as
the  case may be) have  been  cured or  waived  as  provided  in the  applicable
Indenture. Each of the Indentures will also provide that the holders of not less
than a majority in principal  amount of the  outstanding  Debt Securities of any
series  (or of  all  Debt  Securities  then  outstanding  under  the  applicable
Indenture,  as the case may be) may waive any past  default with respect to such
series  and  its  consequences,  except  a  default  (i) in the  payment  of the
principal  of (or  premium,  if any) or  interest  on any Debt  Security of such
series or (ii) in respect of a covenant or provision contained in the applicable
Indenture  that cannot be modified or amended  without the consent of the holder
of each outstanding Debt Security affected thereby.

                                       6
<PAGE>

     The  Indenture  Trustee  will be  required to give notice to the holders of
Debt  Securities  within 90 days of a default  under  the  applicable  Indenture
unless  such  default  has been cured or waived;  provided,  however,  that such
Indenture  Trustee  may  withhold  notice to the  holders  of any series of Debt
Securities  of any default with respect to such series  (except a default in the
payment  of the  principal  of (or  premium,  if any) or  interest  on any  Debt
Security of such series or in the payment of any  sinking  fund  installment  in
respect of any Debt Security of such series) if specified  responsible  officers
of such  Indenture  Trustee  consider such  withholding to be in the interest of
such holders.

     Each  Indenture  will  provide  that no holders of Debt  Securities  of any
series may institute any proceedings, judicial or otherwise, with respect to the
Indenture  or for any  remedy  thereunder,  except in the case of failure of the
Indenture  Trustee,  for 60 days, to act after it has received a written request
to institute  proceedings  in respect of an event of default from the holders of
not less than a majority in principal  amount of the outstanding Debt Securities
of such series, as well as an offer of reasonable indemnity. This provision will
not prevent,  however,  any holder of Debt Securities from  instituting suit for
the  enforcement  of  payment  of the  principal  of (and  premium,  if any) and
interest on such Debt Securities at the respective due dates thereof.

     Subject to provisions in the applicable Indenture relating to its duties in
case of default,  no Indenture  Trustee will be under any obligation to exercise
any of its rights or powers under such  Indenture at the request or direction of
any  holders  of any  series of Debt  Securities  then  outstanding  under  such
Indenture,  unless such  holders  shall have  offered to the  Indenture  Trustee
reasonable  security  or  indemnity.  The holders of not less than a majority in
principal  amount of the  outstanding  Debt  Securities of any series (or of all
Debt Securities then outstanding under the applicable Indenture, as the case may
be) shall have the right to direct the time,  method and place of conducting any
proceeding for any remedy available to the applicable  Indenture Trustee,  or of
exercising any trust or power conferred upon such Indenture Trustee.  However, a
Indenture  Trustee may refuse to follow any direction  which is in conflict with
any law or the Indenture,  which may involve such Indenture  Trustee in personal
liability or which may be unduly  prejudicial to the holders of Debt  Securities
of such series not joining therein.

     The Company will be required to deliver to each Indenture  Trustee annually
a  certificate,  signed by one of several  specified  officers  of the  Company,
stating  whether or not such  officer has  knowledge  of any  default  under the
applicable Indenture and, if so, specifying each such default and the nature and
status thereof.

Modification of the Indenture

     Modifications  and  amendments of an Indenture will be permitted to be made
only with the consent of the  holders of not less than a majority  in  principal
amount  of all  outstanding  Debt  Securities  or  series  of  outstanding  Debt
Securities  which are  affected by such  modification  or  amendment;  provided,
however,  that no such modification or amendment may, without the consent of the
holder of each such Debt  Security  affected  thereby,  (i)  change  the  stated
maturity of the principal  of, or any  installment  of interest (or premium,  if
any) on any such Debt Security; (ii) reduce the principal amount of, or the rate
or amount of interest on, or any premium payable on redemption of, any such Debt
Security,  or reduce the  amount of  principal  of an  Original  Issue  Discount
Security that would be due and payable upon  declaration of  acceleration of the
maturity  thereof or would be provable in  bankruptcy,  or adversely  affect any
right of  repayment  of the holder of any such Debt  Security;  (iii) change the
place of payment, or the coin or currency, for payment of principal of, premium,
if any,  or  interest  on any such  Debt  Security;  (iv)  impair  the  right to
institute suit for the enforcement of any payment on or with respect to any such
Debt  Security;  (v) reduce the  above-stated  percentage  of  outstanding  Debt
Securities of any series  necessary to modify or amend the  Indenture,  to waive
compliance with certain  provisions thereof or certain defaults and consequences
thereunder  or to reduce  the  quorum or voting  requirements  set forth in such
Indenture;  or  (vi)  modify  any  of  the  foregoing  provisions  or any of the
provisions relating to the waiver of certain past defaults or certain covenants,
except to increase the required  percentage  to effect such action or to provide
that certain other  provisions may not be modified or waived without the consent
of the holder of such Debt Security.

     Each Indenture will provide that the holders of not less than a majority in
principal  amount of a series of outstanding  Debt  Securities have the right to
waive compliance by the Company with certain  covenants  relating to such series
of Debt Securities in such Indenture.

                                       7
<PAGE>

     Modifications  and  amendments of an Indenture will be permitted to be made
by the Company  and the  applicable  Indenture  Trustee  thereunder  without the
consent of any holder of Debt Securities for any of the following purposes:  (i)
to evidence the  succession  of another  person to the Company as obligor  under
such  Indenture;  (ii) to add to the covenants of the Company for the benefit of
the holders of all or any series of Debt Securities or to surrender any right or
power  conferred  upon the  Company  in such  Indenture;  (iii) to add events of
default for the benefit of the holders of all or any series of Debt  Securities;
(iv) to add or change any provisions of the Indenture to facilitate the issuance
of, or to  liberalize  certain  terms of, Debt  Securities in bearer form, or to
permit or facilitate  the issuance of Debt  Securities in  uncertificated  form;
provided  that such  action  shall not  adversely  affect the  interests  of the
holders  of the Debt  Securities  in any  material  respect;  (v) to  change  or
eliminate  any  provisions  of the  Indenture;  provided that any such change or
elimination  shall  become  effective  only when  there  are no Debt  Securities
outstanding  of any series  created  prior  thereto  which are  entitled  to the
benefit  of such  provision;  (vi) to  secure  the  Debt  Securities;  (vii)  to
establish  the form or terms of Debt  Securities  of any series,  including  the
provisions  and  procedures,  if  applicable,  for the  conversion  of such Debt
Securities  into Common  Shares or Preferred  Shares;  (viii) to provide for the
acceptance of  appointment  by a successor  Indenture  Trustee or facilitate the
administration  of the  trusts  under an  Indenture  by more than one  Indenture
Trustee;  (ix) to cure any ambiguity,  defect or  inconsistency in an Indenture;
provided that such action shall not adversely affect the interests of holders of
Debt Securities of any series in any material respect;  or (x) to supplement any
of the  provisions  of an  Indenture  to  the  extent  necessary  to  permit  or
facilitate  defeasance  and  discharge  of any  series of such Debt  Securities;
provided  that such  action  shall not  adversely  affect the  interests  of the
holders of the Debt Securities of any series in any material respect.

     Each Indenture will provide that in determining  whether the holders of the
requisite principal amount of outstanding Debt Securities of a series have given
any  request,  demand,  authorization,  direction,  notice,  consent  or  waiver
thereunder  or  whether a quorum is  present  at a meeting  of  holders  of Debt
Securities, (i) the principal amount of an Original Issue Discount Security that
shall be deemed to be outstanding  shall be the amount of the principal  thereof
that  would  be due  and  payable  as of the  date of  such  determination  upon
declaration of acceleration of the maturity  thereof,  (ii) the principal amount
of a Debt  Security  denominated  in a  foreign  currency  that  shall be deemed
outstanding  shall be the U.S. dollar  equivalent,  determined on the issue date
for such Debt Security,  of the principal amount (or, in the case of an Original
Issue Discount  Security,  the U.S. dollar  equivalent on the issue date of such
Debt  Security of the amount  determined  as  provided in (i) above),  (iii) the
principal amount of an indexed security that shall be deemed  outstanding  shall
be the  principal  face amount of such  indexed  security at original  issuance,
unless  otherwise  provided  with  respect  to  such  indexed  security  in  the
applicable Indenture, and (iv) Debt Securities owned by the Company or any other
obligor  upon the Debt  Securities  or any  affiliate  of the Company or of such
other obligor shall be disregarded.

     Each  Indenture  will  contain  provisions  for  convening  meetings of the
holders of Debt  Securities of a series.  A meeting may be called at any time by
an Indenture Trustee,  and also, upon request,  by the Company or the holders of
at least 25% in principal  amount of the  outstanding  Debt  Securities  of such
series,  in any such case,  upon notice  given as  provided  in such  Indenture.
Except for any  consent  that must be given by the holder of each Debt  Security
affected by certain modifications and amendments of an Indenture, any resolution
presented at a meeting or adjourned meeting duly reconvened at which a quorum is
present may be adopted by the  affirmative  vote of the holders of a majority in
principal  amount of the outstanding  Debt Securities of that series;  provided,
however,  that,  except as referred to above, any resolution with respect to any
request,  demand,  authorization,  direction,  notice,  consent, waiver or other
action  that  may be  made,  given  or  taken  by  the  holders  of a  specified
percentage,  which  is  less  than  a  majority,  in  principal  amount  of  the
outstanding Debt Securities of a series may be adopted at a meeting or adjourned
meeting duly reconvened at which a quorum is present by the affirmative  vote of
the holders of such specified  percentage in principal amount of the outstanding
Debt Securities for that series.  Any resolution passed or decision taken at any
meeting of holders of Debt Securities of any series duly held in accordance with
the applicable  Indenture  will be binding on all holders of Debt  Securities of
that series. The quorum at any meeting called to adopt a resolution,  and at any
reconvened  meeting,  will be persons  holding  or  representing  a majority  in
principal  amount of the  outstanding  Debt  Securities  of a series;  provided,

                                       8
<PAGE>
however,  that if any action is to be taken at such  meeting  with  respect to a
consent or waiver which may be given by the holders of not less than a specified
percentage in principal  amount of the outstanding  Debt Securities of a series,
the persons  holding or  representing  such  specified  percentage  in principal
amount of the  outstanding  Debt  Securities  of such series will  constitute  a
quorum.

     Notwithstanding the foregoing provisions,  each Indenture will provide that
if any action is to be taken at a meeting of holders of Debt  Securities  of any
series with respect to any request, demand,  authorization,  direction,  notice,
consent,  waiver or other action that such Indenture  expressly  provides may be
made,  given or taken by the holders of such  series and one or more  additional
series:  (i) there shall be no minimum quorum  requirement  for such meeting and
(ii) the principal amount of the outstanding Debt Securities of such series that
vote in  favor  of  such  request,  demand,  authorization,  direction,  notice,
consent,  waiver or other  action  shall be taken into  account  in  determining
whether such request, demand, authorization,  direction, notice, consent, waiver
or other action has been made, given or taken under such Indenture.

Discharge, Defeasance and Covenant Defeasance

     The Company may discharge  certain  obligations to holders of any series of
Debt Securities that have not already been delivered to the applicable Indenture
Trustee  for  cancellation  and that  either have become due and payable or will
become due and payable within one year (or scheduled for  redemption  within one
year) by irrevocably  depositing with such Indenture Trustee, in trust, funds in
such currency or  currencies,  currency  unit or units or composite  currency or
currencies in which such Debt Securities are payable in an amount  sufficient to
pay the entire indebtedness on such Debt Securities in respect of principal (and
premium,  if any)  and  interest  to the  date of such  deposit  (if  such  Debt
Securities  have become due and payable) or to the stated maturity or redemption
date, as the case may be.

     An  Indenture  may provide  that,  if certain  provisions  thereof are made
applicable  to the  Debt  Securities  of or  within  a  series  pursuant  to the
Indenture,  the Company may elect either (i) to defease and be  discharged  from
any and all  obligations  with respect to such Debt  Securities  (except for the
obligation to pay  additional  amounts,  if any, upon the  occurrence of certain
events of tax,  assessment  or  governmental  charge with respect to payments on
such Debt Securities and the obligations to register the transfer or exchange of
such Debt  Securities,  to replace  temporary or mutilated,  destroyed,  lost or
stolen Debt Securities,  to maintain an office or agency in respect of such Debt
Securities and to hold moneys for payment in trust) ("defeasance") or (ii) to be
released from its obligations with respect to such Debt Securities under certain
sections  of  such  Indenture   (including  the  restrictions   described  under
"--Certain  Covenants")  and,  if  provided  pursuant  to  such  Indenture,  its
obligations with respect to any other covenant,  and any omission to comply with
such  obligations  shall not  constitute  a default or an event of default  with
respect to such Debt Securities ("covenant defeasance"), in either case upon the
irrevocable  deposit by the Company with the applicable  Indenture  Trustee,  in
trust, of an amount,  in such currency or currencies,  currency unit or units of
composite  currency or currencies in which such Debt  Securities  are payable at
stated  maturity,  or  Government  Obligations  (as  defined  below),  or  both,
applicable  to such Debt  Securities  which  through  the  scheduled  payment of
principal and interest,  in accordance with their terms will provide money in an
amount sufficient to pay the principal of (and premium,  if any) and interest on
such Debt  Securities,  and any  mandatory  sinking fund or  analogous  payments
thereon, on the scheduled dates therefor.

     Such a trust may be  established  only if, among other things,  the Company
has  delivered  to the  applicable  Indenture  Trustee an opinion of counsel (as
specified in the  applicable  Indenture)  to the effect that the holders of such
Debt Securities will not recognize income,  gain or loss for U.S. federal income
tax purposes as a result of such  defeasance or covenant  defeasance and will be
subject to U.S.  federal income tax on the same amounts,  in the same manner and
at the same times as would  have been the case if such  defeasance  or  covenant
defeasance had not occurred.

     "Government  Obligations" means securities which are (i) direct obligations
of the United  States of  America or the  government  which  issued the  foreign
currency in which the Debt  Securities of a particular  series are payable,  for

                                      9
<PAGE>

the payment of which its full faith and credit is pledged or (ii) obligations of
a person controlled or supervised by and acting as an agency or  instrumentality
of the United  States of America or such  government  which  issued the  foreign
currency in which the Debt  Securities of a particular  series are payable,  the
payment  of which is  unconditionally  guaranteed  as a full  faith  and  credit
obligation by the United States of America or such other  government,  which, in
either case, are not callable or redeemable at the option of the issuer thereof,
and shall also include a depository receipt issued by a bank or trust company as
custodian with respect to any such Government  Obligation or a specific  payment
of interest  on or  principal  of any such  Government  Obligation  held by such
custodian for the account of the holder of a depository  receipt;  provided that
(except  as  required  by law)  such  custodian  is not  authorized  to make any
deduction from the amount payable to the holder of such depository  receipt from
any amount received by the custodian in respect of the Government Obligations or
the specific  payment of interest on or principal of the Government  Obligations
evidenced by such depository receipt.
 
     Unless otherwise provided in the applicable Prospectus Supplement, if after
the  Company  has  deposited  funds  and/or  Government  Obligations  to  effect
defeasance or covenant defeasance with respect to Debt Securities of any series,
(i) the holder of a Debt Security of such series is entitled to, and does, elect
pursuant  to the  applicable  Indenture  or the terms of such Debt  Security  to
receive  payment in a currency,  currency unit or composite  currency other than
that in which such  deposit has been made in respect of such Debt  Security,  or
(ii) a Conversion  Event (as defined  below)  occurs in respect of the currency,
currency  unit or composite  currency in which such  deposit has been made,  the
indebtedness represented by such Debt Security shall be deemed to have been, and
will be, fully discharged and satisfied  through the payment of the principal of
(and premium,  if any) and interest on such Debt Security as they become due out
of the proceeds yielded by converting the amount so deposited in respect of such
Debt Security into the  currency,  currency unit or composite  currency in which
such  Debt  Security  becomes  payable  as a  result  of such  election  or such
cessation of usage based on the applicable  market  exchange  rate.  "Conversion
Event" means the cessation of use of (i) a currency,  currency unit or composite
currency  both by the  government  of the country which issued such currency and
for  the  settlement  of   transactions  by  a  central  bank  or  other  public
institutions of or within the international banking community, (ii) the ECU both
within the European  Monetary  System and for the settlement of  transactions by
public institutions of or within the European  Communities or (iii) any currency
unit or composite  currency other than the ECU for the purposes for which it was
established.  Unless otherwise provided in the applicable Prospectus Supplement,
all  payments of  principal  of (and  premium,  if any) and interest on any Debt
Security  that is payable in a foreign  currency  that  ceases to be used by its
government of issuance shall be made in U.S. dollars.

     In the event the Company  effects  covenant  defeasance with respect to any
Debt Securities and such Debt Securities are declared due and payable because of
the occurrence of any event of default other than the event of default described
in clause (d) under  "--Events  of Default,  Notice and Waiver"  with respect to
certain sections of the applicable  Indenture (which sections would no longer be
applicable to such Debt  Securities) or described in clause (g) under  "--Events
of Default,  Notice and Waiver" with  respect to any other  covenant as to which
there has been covenant defeasance,  the amount in such currency,  currency unit
or composite currency in which such Debt Securities are payable,  and Government
Obligations  on deposit with the Trustee,  will be sufficient to pay amounts due
on such Debt  Securities  at the time of their  stated  maturity  but may not be
sufficient  to pay  amounts  due on  such  Debt  Securities  at the  time of the
acceleration  resulting from such event of default.  However,  the Company would
remain liable to make payment of such amounts due at the time of acceleration.

     Notwithstanding the description set forth under "--Subordination" below, in
the  event  that  the  Company  deposits  money  or  Government  Obligations  in
compliance  with the applicable  Indenture in order to defease all or certain of
its  obligations  with  respect to any  Subordinated  Securities,  the moneys or
Government  Obligations  so deposited  will not be subject to the  subordination
provisions of such Indenture and the indebtedness evidenced by such Subordinated
Securities will not be subordinated in right of payment to the holders of senior
indebtedness to the extent of the moneys or Government Obligations so deposited.

     The applicable  Prospectus  Supplement may further describe the provisions,
if any,  permitting  such  defeasance  or  covenant  defeasance,  including  any
modifications  to the  provisions  described  above,  with  respect  to the Debt
Securities of or within a particular series.

                                       10
<PAGE>

Conversion Rights

     The terms and  conditions,  if any,  upon  which  the Debt  Securities  are
convertible  into Common or Preferred Shares will be set forth in the Prospectus
Supplement  relating  thereto.   Such  terms  will  include  whether  such  Debt
Securities are convertible into Common or Preferred Shares, the conversion price
(or manner of  calculation  thereof),  the conversion  period,  provisions as to
whether  conversion  will be at the option of the  holders of the  Company,  the
events requiring an adjustment of the conversion price and provisions  affecting
conversion  in the  event of the  redemption  of such  Debt  Securities  and any
restrictions on conversion,  including  restrictions directed at maintaining the
Company's REIT status.

Subordination

     The terms and conditions,  if any, upon which Subordinated  Securities of a
series  are  subordinated  to  Debt  Securities  of  other  series  or to  other
indebtedness  of the  Company  will be set  forth in the  applicable  Prospectus
Supplement.  Such terms will include a description of the  indebtedness  ranking
senior to such  Subordinated  Securities,  the  restrictions  on payments to the
holders of such  Subordinated  Securities  while a default  with respect to such
senior indebtedness is continuing, the restrictions,  if any, on payments to the
holders of such  Subordinated  Securities  following  an Event of  Default,  and
provisions  requiring holders of such  Subordinated  Securities to remit certain
payments to holders of senior indebtedness.

Global Securities

     If  so  set  forth  in  the  applicable  Prospectus  Supplement,  the  Debt
Securities  of a series  may be issued in whole or in part in the form of one or
more  Global  Securities  that  will be  deposited  with,  or on  behalf  of,  a
depositary  identified in the applicable  Prospectus Supplement relating to such
series.  Global Securities may be issued in either registered or bearer form and
in either  temporary or permanent  form.  The specific  terms of the  depositary
arrangement with respect to any such series of Debt Securities will be described
in the applicable Prospectus Supplement.


                              DESCRIPTION OF SHARES

         The  Declaration  of Trust  ("Declaration")  authorizes  the Company to
issue an aggregate of 175,000,000  shares of beneficial  interest  ("Shares") in
the Company,  including (i) 125,000,000 Common Shares, par value $.01 per share,
and (ii) 50,000,000  Preferred Shares, par value $.01 per share. The Declaration
permits the  Trustees  to amend the  Declaration  to  increase  or decrease  the
authorized  Shares  of  the  Company  without  the  requirement  of  shareholder
approval.

   
     The Declaration authorizes the Trustees, without shareholder approval, from
time to time to divide the  Preferred  Shares into  classes or series and to set
(or  change,  if the class or series has been  previously  established)  the par
value,  if  any,  preferences,   conversion  or  other  rights,  voting  powers,
restrictions,   limitations  as  to  dividends,   qualifications  or  terms  and
conditions of redemption of such  Preferred  Shares as are not prohibited by the
Declaration or applicable  law. In connection with the adoption of the Company's
shareholders  rights plan (see  "Redemption;  Business  Combinations and Control
Share  Acquisitions  --  Rights  Plan,"  below),  the  Trustees  established  an
authorized but unissued class of 1,250,000  Preferred Shares, par value $.01 per
share (the "Junior Participating Preferred Shares"),  described more fully below
under  "Description  of  Preferred  Shares  --  Junior  Participating  Preferred
Shares," and as of May 1, 1997 no other class or series of Preferred  Shares had
been established.
    

     As of May 1, 1997 there were 98,703,918  Shares  outstanding,  all of which
were Common  Shares.  The Company  also had  outstanding  as of such date $211.7
million  aggregate  principal  amount  convertible  subordinated  debentures  of
various series,  all of which are convertible  into Common Shares at an exercise
price  equal on such date to $18 per  share.  See  "Description  of  Convertible
Subordinated Debentures."

                                       11
<PAGE>


     The  following  descriptions  do not purport to be complete and are subject
to,  and  qualified  in their  entirety  by  reference  to,  the  more  complete
descriptions thereof set forth in the Declaration. Capitalized terms not defined
herein are as defined in the Declaration.

     Except as otherwise determined by the Trustees with respect to any class or
series  of  Preferred  Shares,  all  Shares:  (i) will  participate  equally  in
dividends  payable to shareholders  when, as and if declared by the Trustees and
ratably in net assets  available for distribution to shareholders on liquidation
or dissolution;  (ii) will have one vote per share on all matters submitted to a
vote of the  shareholders,  (iii) will not have cumulative  voting rights in the
election of Trustees;  and (iv) will have no preference,  conversion,  exchange,
sinking fund, redemption rights or preemptive or similar rights.

     Upon issuance in accordance  with the  Declaration,  applicable law and the
terms and conditions described in the related Prospectus Supplement,  the Shares
will be  fully  paid  and  nonassessable.  The  holders  of  Shares  do not have
preemptive  rights with  respect to the issuance of  additional  Shares or other
securities of the Company.

     The authorized but unissued Shares will be available for issuance from time
to time by the Company at the sole  discretion  of the  Trustees  for any proper
trust purpose,  which could include raising capital,  providing  compensation or
benefits to employees and others, paying stock dividends or acquiring companies,
businesses or  properties.  The issuance of such unissued  Shares could have the
effect of diluting  the earnings per share and book value per share of currently
outstanding Shares.

     For certain other  information with respect to the Shares,  see "Limitation
of Liabilities;  Shareholder  Liability" and "Redemption;  Business Combinations
and Control Share Acquisitions" below.


                         DESCRIPTION OF PREFERRED SHARES

     The Declaration authorizes the Trustees, without shareholder approval, from
time to time to divide the  Preferred  Shares into  classes or series and to set
(or  change,  if the class or series has been  previously  established)  the par
value,  if  any,  preferences,   conversion  or  other  rights,  voting  powers,
restrictions,   limitations  as  to  dividends,   qualifications  or  terms  and
conditions of redemption of such Preferred Shares that are not prohibited by the
Declaration or applicable law.

     The  following  description  of the  Preferred  Shares  sets forth  certain
general terms and  provisions of the  Preferred  Shares to which any  Prospectus
Supplement  may relate and a brief  summary  of certain  terms of the  Company's
Junior  Participating  Preferred  Shares.  The statements  below  describing the
Preferred  Shares are in all respects subject to and qualified in their entirety
by reference to the  applicable  provisions of the  Declaration  (including  any
applicable articles supplementary) and By-Laws.

General

     Subject to limitations prescribed by Maryland law and the Declaration,  the
Trustees are authorized to fix the number of shares  constituting each series of
Preferred  Shares and the  designations  and powers,  preferences  and relative,
participating, optional or other specific rights and qualifications, limitations
or restrictions thereof,  including such provisions as may be desired concerning
voting,  redemption,  dividends,  dissolution  or the  distribution  of  assets,
conversion  or exchange,  and such other  subjects or matters as may be fixed by
resolutions of the Trustees.

     Reference is made to the  Prospectus  Supplement  relating to the Preferred
Shares offered thereby for specific terms, including:

     (1)  the title of such Preferred Shares;

     (2)  the number of shares of such Preferred Shares offered,  the par value,
          the  liquidation  preference  per share and the offering price of such
          Preferred Shares;

                                       12
<PAGE>

     (3)  the dividend rate(s), period(s) and/or payment date(s) or method(s) of
          calculation thereof applicable to such Preferred Shares;

     (4)  the  date  from  which  dividends  on  such  Preferred   Shares  shall
          accumulate, if applicable;

     (5)  the  procedures  for any auction  and  remarketing,  if any,  for such
          Preferred Shares;

     (6)  the provision for a sinking fund, if any, for such Preferred Shares;

     (7)  the provision for redemption, if applicable, of such Preferred Shares;

     (8)  any listing of such Preferred Shares on any securities exchange;

     (9)  the terms and  conditions,  if  applicable,  upon which such Preferred
          Shares  will be  convertible  into  Common  Shares of the  Company  or
          another series of Offered  Securities,  including the conversion price
          (or manner of calculation thereof);

     (10) whether  interests in such  Preferred  Shares will be  represented  by
          Depositary Shares as more fully described below under  "Description of
          Depositary Shares";

     (11) any  other  specific  terms,  preferences,   rights,   limitations  or
          restrictions of such Preferred Shares;

     (12) a discussion of federal income tax  considerations  applicable to such
          Preferred Shares;

     (13) the relative  ranking and  preferences of such Preferred  Shares as to
          dividend rights and rights upon liquidation, dissolution or winding up
          of the affairs of the Company;

     (14) any limitations on issuance of any series of Preferred  Shares ranking
          senior to or on a parity  with such series of  Preferred  Shares as to
          dividend rights and rights upon liquidation, dissolution or winding up
          of the affairs of the Company; and

     (15) any limitations on direct or beneficial  ownership and restrictions on
          transfer.

     As described under "Description of Depositary  Shares," the Company may, at
its option,  elect to offer Depositary  Shares evidenced by depositary  receipts
("Depositary  Receipts"),   each  representing  a  fractional  interest  (to  be
specified in the Prospectus  Supplement relating to the particular series of the
Preferred  Shares) in a share of the particular  series of the Preferred  Shares
issued and deposited with a Depositary (as defined below).

Rank

     Unless otherwise determined by the Trustees and specified in the applicable
Prospectus  Supplement,  it is expected  that the  Preferred  Shares will,  with
respect to dividend rights and rights upon  liquidation,  dissolution or winding
up of the  Company,  rank (i)  senior to all  Common  Shares,  and to all equity
securities  ranking junior to such Preferred  Shares;  (ii) on a parity with all
equity securities issued by the Company the terms of which specifically  provide
that such equity  securities  rank on a parity with the  Preferred  Shares;  and
(iii) junior to all equity  securities  issued by the Company the terms of which
specifically  provide that such equity  securities  rank senior to the Preferred
Shares.

Dividends

     Holders of  Preferred  Shares of each series  shall be entitled to receive,
when, as and if declared by the Trustees,  out of assets of the Company  legally
available for payment, cash dividends at such rates and on such dates as will be

                                       13
<PAGE>

set forth in the applicable Prospectus  Supplement.  Each such dividend shall be
payable to holders of record as they appear on the stock  transfer  books of the
Company (or, if applicable,  on the records of the Depositary  referred to below
under "Description of Depositary Shares") on such record dates as shall be fixed
by the Trustees.

     Dividends  on any  series of the  Preferred  Shares  may be  cumulative  or
noncumulative,  as provided in the applicable Prospectus Supplement.  Dividends,
if  cumulative,  will be  cumulative  from and  after  the date set forth in the
applicable  Prospectus  Supplement.  If the Trustees  fail to declare a dividend
payable on a dividend  payment  date on any series of the  Preferred  Shares for
which  dividends  are  noncumulative,  then the  holders  of such  series of the
Preferred  Shares  will have no right to  receive a  dividend  in respect of the
dividend period ending on such dividend  payment date, and the Company will have
no  obligation  to pay the  dividend  accrued  for such  period,  whether or not
dividends on such series are  declared  payable on any future  dividend  payment
date.

     If Preferred Shares of any series are outstanding,  no full dividends shall
be  declared  or paid or set apart for  payment on the  Preferred  Shares of the
Company of any other series ranking, as to dividends, on a parity with or junior
to the Preferred  Shares of such series for any period unless (i) if such series
of Preferred Shares has a cumulative  dividend,  full cumulative  dividends have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set apart for such payment on the  Preferred  Shares of
such series for all past dividend  periods and the then current  dividend period
or (ii) if such series of Preferred Shares does not have a cumulative  dividend,
full   dividends   for  the  then   current   dividend   period   have  been  or
contemporaneously are declared and paid or declared and a sum sufficient for the
payment  thereof  set apart for such  payment  on the  Preferred  Shares of such
series.  When  dividends are not paid in full (or a sum sufficient for such full
payment is not so set  apart)  upon the  Preferred  Shares of any series and the
shares  of any  other  series  of  Preferred  Shares  ranking  on a parity as to
dividends with the Preferred Shares of such series,  all dividends declared upon
Preferred  Shares of such series and any other series of Preferred  Shares shall
in all cases bear to each other the same ratio that accrued  dividends per share
on the Preferred Shares of such series (which shall not include any accumulation
in respect of unpaid  dividends  for prior  dividend  periods if such  Preferred
Shares do not have a  cumulative  dividend)  and such other  series of Preferred
Shares bear to each other.  No  interest,  or sum of money in lieu of  interest,
shall be payable in respect of any  dividend  payment or payments  on  Preferred
Shares of such series which may be in arrears.

     Except as provided in the immediately  preceding  paragraph,  unless (i) if
such series of  Preferred  Shares has a  cumulative  dividend,  full  cumulative
dividends on the Preferred Shares of such series have been or  contemporaneously
are declared and paid or declared and a sum sufficient for the repayment thereof
set  apart  for  payment  for all past  dividend  periods  and the then  current
dividend  period,  and (ii) if such series of  Preferred  Shares does not have a
cumulative dividend,  full dividends on the Preferred Shares of such series have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set apart for  payment  for the then  current  dividend
period, no dividends (other than in Common Shares or other capital stock ranking
junior  to the  Preferred  Shares  of  such  series  as to  dividends  and  upon
liquidation)  shall  be  declared  or paid or set  aside  for  payment  or other
distribution  shall be  declared  or made  upon the  Common  Shares or any other
capital stock of the Company ranking junior to or on a parity with the Preferred
Shares of such series as to dividends or upon liquidation,  nor shall any Common
Shares or any  other  capital  stock of the  Company  ranking  junior to or on a
parity  with  the  Preferred  Shares  of such  series  as to  dividends  or upon
liquidation be redeemed,  purchased or otherwise  acquired for any consideration
(or any  moneys  be  paid  to or  made  available  for a  sinking  fund  for the
redemption of any shares of any such stock) by the Company (except by conversion
into or exchange for other  capital stock of the Company  ranking  junior to the
Preferred  Shares of such series as to dividends and upon liquidation and except
pursuant to certain pro rata offers to purchase or a  concurrent  redemption  of
all, or a pro rata portion of, the outstanding shares of the Preferred Shares of
such series and any other  series of Preferred  Shares  ranking on a parity with
such series as to dividends and liquidation).

                                       14
<PAGE>

     Any dividend  payment made on shares of a series of Preferred  Shares shall
first be credited  against the  earliest  accrued but unpaid  dividend  due with
respect to shares of such series which remains payable.

Redemption

     If so provided  in the  applicable  Prospectus  Supplement,  the  Preferred
Shares will be subject to mandatory  redemption  or  redemption at the option of
the Company,  as a whole or in part,  in each case upon the terms,  at the times
and at the redemption prices set forth in such Prospectus Supplement.

     The Prospectus  Supplement relating to a series of Preferred Shares that is
subject to mandatory redemption will specify the number of such Preferred Shares
that shall be redeemed by the Company in each year commencing after a date to be
specified,  at a redemption  price per share to be  specified,  together with an
amount equal to all accrued and unpaid  dividends  thereon  (which shall not, if
such  Preferred  Shares  do  not  have  a  cumulative   dividend,   include  any
accumulation in respect of unpaid  dividends for prior dividend  periods) to the
date of  redemption.  The  redemption  price  may be  payable  in cash or  other
property,  as  specified  in  the  applicable  Prospectus  Supplement.   If  the
redemption price for Preferred Shares of any series is payable only from the net
proceeds of the  issuance  of capital  stock of the  Company,  the terms of such
Preferred  Shares may provide  that,  if no such  capital  stock shall have been
issued or to the extent the net proceeds from any issuance are  insufficient  to
pay in full the aggregate redemption price then due, such Preferred Shares shall
automatically and mandatorily be converted into shares of the applicable capital
stock  of  the  Company  pursuant  to  conversion  provisions  specified  in the
applicable Prospectus Supplement.

     Notwithstanding  the  foregoing,  unless  (i) if such  series of  Preferred
Shares has a cumulative dividend, full cumulative dividends on all shares of any
series of Preferred Shares shall have been or contemporaneously are declared and
paid or declared  and a sum  sufficient  for the  payment  thereof set apart for
payment for all past dividend periods and the then current dividend period,  and
(ii) if such series of  Preferred  Shares does not have a  cumulative  dividend,
full   dividends   on  the   Preferred   Shares  of  any  series  have  been  or
contemporaneously are declared and paid or declared and a sum sufficient for the
payment thereof set apart for payment for the then current dividend  period,  no
shares  of  any  series  of  Preferred  Shares  shall  be  redeemed  unless  all
outstanding  Preferred  Shares  of  such  series  are  simultaneously  redeemed;
provided,  however,  that the  foregoing  shall  not  prevent  the  purchase  or
acquisition  of  Preferred  Shares of such  series  pursuant  to a  purchase  or
exchange  offer made on the same terms to holders of all  outstanding  Preferred
Shares of such series,  and, unless (i) if such series of Preferred Shares has a
cumulative dividend,  full cumulative dividends on all outstanding shares of any
series of Preferred Shares have been or contemporaneously  are declared and paid
or declared and a sum sufficient  for the payment  thereof set apart for payment
for all past dividend periods and the then current dividend period,  and (ii) if
such  series of  Preferred  Shares  does not have a  cumulative  dividend,  full
dividends on the Preferred  Shares of any series have been or  contemporaneously
are declared and paid or declared and a sum sufficient  for the payment  thereof
set apart for payment for the then current  dividend  period,  the Company shall
not purchase or otherwise acquire directly or indirectly any Preferred Shares of
such series  (except by  conversion  into or exchange  for capital  stock of the
Company  ranking  junior to the Preferred  Shares of such series as to dividends
and upon liquidation).

     If fewer than all of the outstanding  Preferred Shares of any series are to
be redeemed, the number of Preferred Shares to be redeemed will be determined by
the Company and such shares may be redeemed  pro rata from the holders of record
of such shares in  proportion  to the number of such shares held by such holders
(with adjustments to avoid redemption of fractional  shares) or by lot in manner
determined by the Company.

     Notice of  redemption  will be mailed at least 30 days but not more than 60
days before the redemption date to each holder of record of Preferred  Shares of
any series to be redeemed at the address  shown on the stock  transfer  books of
the Company.  Each notice shall state:  (i) the redemption date; (ii) the number
of  shares  and  series  of the  Preferred  Shares  to be  redeemed;  (iii)  the
redemption price; (iv) the place or places where certificates for such Preferred
Shares are to be  surrendered  for  payment of the  redemption  price;  (v) that
dividends on the shares to be redeemed  will cease to accrue on such  redemption

                                       15
<PAGE>

date; and (vi) the date upon which the holder's conversion rights, if any, as to
such  shares  shall  terminate.  If fewer than all the  Preferred  Shares of any
series are to be redeemed,  the notice mailed to each such holder  thereof shall
also  specify  the  number of  Preferred  Shares to be  redeemed  from each such
holder.  If notice of redemption  of any Preferred  Shares has been given and if
the funds  necessary for such  redemption  have been set aside by the Company in
trust for the  benefit of the holders of any of the  Preferred  Shares so called
for redemption,  then from and after the redemption date dividends will cease to
accrue on such Preferred  Shares,  and any and all rights of the holders of such
shares will terminate, except the right to receive the redemption price.

Liquidation Preference

     Upon any voluntary or involuntary liquidation, dissolution or winding up of
the affairs of the Company,  then,  before any  distribution or payment shall be
made to the holders of any Common Shares or any other class or series of capital
stock of the Company ranking junior to the Preferred  Shares in the distribution
of assets upon any  liquidation,  dissolution or winding up of the Company,  the
holders of each series of  Preferred  Shares shall be entitled to receive out of
assets  of the  Company  legally  available  for  distribution  to  shareholders
liquidating  distributions in the amount of the liquidation preference per share
(set forth in the applicable Prospectus Supplement), plus an amount equal to all
dividends  accrued and unpaid thereon (which shall not include any  accumulation
in respect of unpaid  dividends  for prior  dividend  periods if such  Preferred
Shares do not have a cumulative  dividend).  After payment of the full amount of
the  liquidating  distributions  to which  they are  entitled,  the  holders  of
Preferred  Shares will have no right or claim to any of the remaining  assets of
the  Company.  In  the  event  that  upon  any  such  voluntary  or  involuntary
liquidation,  dissolution or winding up, the available assets of the Company are
insufficient  to  pay  the  amount  of  the  liquidating  distributions  on  all
outstanding Preferred Shares and the corresponding amounts payable on all shares
of other classes or series of capital  stock of the Company  ranking on a parity
with the Preferred Shares in the distribution of assets, then the holders of the
Preferred  Shares and all other such  classes or series of capital  stock  shall
share  ratably  in any such  distribution  of assets in  proportion  to the full
liquidating   distributions  to  which  they  would  otherwise  be  respectively
entitled.

     If liquidating distributions shall have been made in full to all holders of
Preferred Shares, the remaining assets of the Company shall be distributed among
the holders of any other classes or series of capital  stock  ranking  junior to
the Preferred Shares upon  liquidation,  dissolution or winding up, according to
their  respective  rights and  preferences  and in each case  according to their
respective number of shares.  For such purposes,  the consolidation or merger of
the Company with or into any other trust or corporation,  or the sale,  lease or
conveyance  of all or  substantially  all of the  property  or  business  of the
Company, shall not be deemed to constitute a liquidation, dissolution or winding
up of the Company.

Voting Rights

     Holders of the Preferred Shares will not have any voting rights,  except as
set  forth  below  or as  otherwise  from  time  to time  required  by law or as
indicated in the applicable Prospectus Supplement.

     Unless otherwise  specified in the related  Prospectus  Supplement,  at any
time dividends on any Preferred  Shares shall be in arrears for six  consecutive
quarterly periods,  the holders of such Preferred Shares (voting separately as a
class with all other  series of preferred  shares upon which like voting  rights
have  been  conferred  and are  exercisable)  will be  entitled  to vote for the
election of two additional trustees of the Company at the next annual meeting of
shareholders  and at  each  subsequent  meeting  until  (i) if  such  series  of
Preferred Shares has a cumulative  dividend,  all dividends  accumulated on such
Preferred  Shares for the past  dividend  periods and the then current  dividend
period  shall have been  fully paid or  declared  and a sum  sufficient  for the
payment thereof set aside for payment or (ii) if such series of Preferred Shares
does not have a cumulative dividend,  four consecutive quarterly dividends shall
have been fully paid or declared and a sum  sufficient  for the payment  thereof
set aside for payment.  In such case, the entire Trustees of the Company will be
increased by two trustees.

                                       16
<PAGE>

     Unless provided  otherwise for any series of Preferred  Shares,  so long as
any Preferred  Shares  remain  outstanding,  the Company shall not,  without the
affirmative  vote or consent of the  holders of a majority of the shares of each
series of Preferred Shares outstanding at the time, given in person or by proxy,
either in writing or at a meeting  (such series  voting  separately as a class),
(i)  authorize or create,  or increase the  authorized  or issued amount of, any
class or series of  capital  stock  ranking  prior to such  series of  Preferred
Shares with respect to payment of dividends or the  distribution  of assets upon
liquidation,  dissolution or winding up, or reclassify  any  authorized  capital
stock of the Company  into any such  shares,  or create,  authorize or issue any
obligation or security  convertible into or evidencing the right to purchase any
such shares; or (ii) amend, alter or repeal the provisions of the Declaration or
the certificate of designations for such series of Preferred Shares,  whether by
merger, consolidation or otherwise, so as to materially and adversely affect any
right, preference,  privilege or voting power of such series of Preferred Shares
or the holders thereof;  provided,  however,  that any increase in the amount of
the authorized  Preferred Shares or the creation or issuance of any other series
of Preferred  Shares, or any increase in the amount of authorized shares of such
series or any other series of Preferred Shares, in each case ranking on a parity
with or junior to the Preferred Shares of such series with respect to payment of
dividends or the distribution of assets upon liquidation, dissolution or winding
up,  shall  not be  deemed to  materially  and  adversely  affect  such  rights,
preferences, privileges or voting powers.

     The foregoing voting  provisions will not apply if, at or prior to the time
when the act with respect to which such vote would  otherwise be required  shall
be effected,  all  outstanding  shares of such series of Preferred  Shares shall
have been redeemed or called for redemption and sufficient funds shall have been
deposited in trust to effect such redemption.

     As more fully described under  "Description of Depositary Shares" below, if
the Company elects to issue Depositary  Shares,  each representing a fraction of
share of a series of the Preferred Shares,  each such Depositary will, in effect
be entitled to such fraction of a vote per Depositary Share. Conversion Rights

     The  terms and  conditions,  if any,  upon  which  shares of any  series of
Preferred Shares may be converted into or exchanged for Common Shares or another
series of  Preferred  Shares or other series of Offered  Securities  will be set
forth in the Prospectus Supplement relating thereto. Such terms will include the
number of Common Shares or other  securities  into which the Preferred  Share is
convertible  or  exchangeable,  conversion  or  exchange  price  (or  manner  of
calculation  thereof),  the  conversion  or exchange  period,  provisions  as to
whether  conversion  or  exchange  will be at the  option of the  holders of the
Preferred  Shares or the  Company,  the events  requiring an  adjustment  of the
conversion or exchange price and provisions  affecting conversion or exchange in
the event of the redemption such Preferred Shares.

Junior Participating Preferred Shares

   
     In connection with the adoption of the Company's  shareholders rights plan,
the Trustees established an authorized but unissued class of 1,250,000 Preferred
Shares. See "Redemption;  Business  Combinations and Control Share Acquisitions"
below.  Certain  powers,  preferences  and  rights and  certain  qualifications,
limitations and restrictions of the Junior Participating  Preferred Shares, when
and if issued,  are as follows.  The statements below with respect to the Junior
Participating  Preferred  Shares are in all respects subject to and qualified in
their  entirety by reference to the  applicable  provisions  of the  Declaration
(including the applicable articles supplementary) and By-Laws.
    

     The holder of each  Junior  Participating  Preferred  Share is  entitled to
quarterly  dividends in the greater  amount of $5.00 or 100 times the  quarterly
per share dividend, whether cash or otherwise,  declared upon the Common Shares.
Dividends on the Junior Participating Preferred Shares are cumulative.  Whenever
dividends  on the Junior  Participating  Preferred  Shares are in  arrears,  the
Company,  among other things,  is prohibited from declaring or paying dividends,
making other  distributions  on, or redeeming or  repurchasing  Common Shares or
other Shares ranking junior to the Junior  Participating  Preferred Shares,  and
upon failure of the Company to pay such dividends for six quarters,  the holders
of the Junior  Participating  Preferred  Shares  will be  entitled  to elect two
Trustees. The holder of each Junior Participating Preferred Share is entitled to

                                       17
<PAGE>

100 votes on all matters submitted to a vote of the shareholders, voting (unless
otherwise provided in the Declaration or by law) together with holders of Common
Shares as one class. Upon liquidation, dissolution or winding up of the Company,
the  holders  of  Junior  Participating  Preferred  Shares  are  entitled  to  a
liquidation  preference  of $100 per share  plus the amount of any  accrued  and
unpaid dividends and distributions thereon (the "Liquidation Preference"), prior
to payment  of any  distribution  in  respect of the Common  Shares or any other
Shares ranking junior to the Junior  Participating  Preferred Shares.  Following
payment of the  Liquidation  Preference,  the  holders  of Junior  Participating
Preferred Shares are not entitled to further  distributions until the holders of
Common  Shares  shall  have  received  an amount per share  (the  "Common  Share
Adjustment")  equal to the  Liquidation  Preference  divided by 100 (adjusted to
reflect  events such as stock  splits,  stock  dividends  and  recapitalizations
affected the Common Shares) (the "Adjustment Number").  Following the payment of
the full amount of the Liquidation  Preference and the Common Share  Adjustment,
holders of Junior  Participating  Preferred  Shares are entitled to  participate
proportionately  on a per share  basis  with  holders  of  Common  Shares in the
distribution  of the remaining  assets to be distributed in respect of Shares in
the ratio of the Adjustment Number to one, respectively. The powers, preferences
and  rights of the Junior  Participating  Preferred  Shares  are  subject to the
superior  powers,  preferences  and  rights  of any  senior  series  or class of
Preferred  Shares which the Trustees  shall,  from time to time,  authorize  and
issue.

                        DESCRIPTION OF DEPOSITARY SHARES

General

     The description set forth below and in any applicable Prospectus Supplement
of certain  provisions of any Deposit  Agreement  (as defined  below) and of the
Depositary  Shares  and  depositary  receipts  representing   Depositary  Shares
("Depositary  Receipts")  does not purport to be complete  and is subject to and
qualified in its entirety by  reference  to the forms of Deposit  Agreement  and
Depositary  Receipts  relating to each series of the Preferred Shares which have
been or will be  filed  with  the  Commission  at or  prior  to the  time of the
offering of such series of the Preferred Shares.

     The Company  may, at its option,  elect to offer  fractional  interests  in
shares of Preferred Shares, rather than shares of Preferred Shares. In the event
such  option is  exercised,  the  Company  will  provide  for the  issuance by a
Depositary (as defined  below) to the public of receipts for Depositary  Shares,
each of which  will  represent  a  fractional  interest  to be set  forth in the
Prospectus  Supplement  relating to a particular  series of the Preferred Shares
which will be filed with the  Commission at or prior to the time of the offering
of such series of the Preferred Shares as described  below.  Preferred Shares of
each series  represented by Depositary Shares will be deposited under a separate
deposit  agreement  (each,  a "Deposit  Agreement")  among the  Company  and the
depositary named therein (a "Depositary"). The Prospectus Supplement relating to
a series  of  Depositary  Shares  will set  forth  the name and  address  of the
Depositary. Subject to the terms of the applicable Deposit Agreement, each owner
of a Depositary Share will be entitled, in proportion to the fractional interest
of a share of a  particular  series  of  Preferred  Shares  represented  by such
Depositary  Share to all the  rights and  preferences  of the  Preferred  Shares
represented by such Depositary Shares (including dividend,  voting,  conversion,
redemption and liquidation rights).

     The  Depositary  Shares will be evidenced  by  Depositary  Receipts  issued
pursuant to the  applicable  Deposit  Agreement.  Upon  surrender of  Depositary
Receipts  at the  office  of the  Depositary  and upon  payment  of the  charges
provided in the Deposit Agreement and subject to the terms thereof,  a holder of
Depositary Shares is entitled to have the Depositary  deliver to such holder the
whole shares of Preferred Shares  underlying the Depositary  Shares evidenced by
the surrendered Depositary Receipts.

Dividends and Other Distributions

     A Depositary  will be required to  distribute  all cash  dividends or other
cash distributions received in respect of the applicable Preferred Shares to the
record holders of Depositary  Receipts  evidencing the related Depositary Shares
in proportion to the number of such  Depositary  Receipts owned by such holders,
subject to certain obligations of holders to file proofs, certificates and other
information  and to  pay  certain  charges  and  expenses  to  such  Depositary.
Fractions will be rounded down to the market whole cent.

                                       18
<PAGE>

     In the event of a  distribution  other than in cash, a  Depositary  will be
required  to  distribute  property  received  by it to  the  record  holders  of
Depositary Receipts entitled thereto,  subject to certain obligations of holders
to file proofs,  certificates  and other  information and to pay certain charges
and expenses to such  Depositary,  unless such Depositary  determines that it is
not feasible to make such distribution,  in which case such Depositary may, with
the approval of the Company,  sell such property and distribute the net proceeds
from such sale to such holders.

     No  distributions  will be made in respect of any  Depositary  Share to the
extent that it  represents  any  Preferred  Shares which have been  converted or
exchanged.  The Deposit Agreement will also contain  provisions  relating to the
manner in which any  subscription  or similar  rights  offered by the Company to
holders of the Preferred Shares shall be made available to holders of Depositary
Shares.

Redemption of Depositary Shares

     If a series of the Preferred  Shares  underlying the  Depositary  Shares is
subject to redemption,  the Depositary Shares will be redeemed from the proceeds
received by the Depositary  resulting from the redemption,  in whole or in part,
of such series of the Preferred  Shares held by the  Depositary.  The Depositary
shall mail notice of redemption not less than 30 and not more than 60 days prior
to the date  fixed  for  redemption  to the  record  holders  of the  Depositary
Receipts  evidencing the Depositary Shares to be so redeemed at their respective
addresses  appearing  in  the  Depositary's  books.  The  redemption  price  per
Depositary  Share will be equal to the  applicable  fraction  of the  redemption
price per share  payable  with respect to such series of the  Preferred  Shares.
Whenever the Company redeems shares of Preferred  Shares held by the Depositary,
the  Depositary  will  redeem  as of the  same  redemption  date the  number  of
Depositary  Shares relating to shares of Preferred  Shares so redeemed.  If less
than all of the Depositary  Shares are to be redeemed,  the Depositary Shares to
be  redeemed  will be selected  by lot or pro rata as may be  determined  by the
Depositary.

     After the date fixed for  redemption,  the Depositary  Shares so called for
redemption  will no longer be deemed  to be  outstanding  and all  rights of the
holders of the Depositary Shares and the related Depositary Receipts will cease,
except the right to receive  the moneys  payable  upon such  redemption  and any
money or other  property  to which the  holders of such  Depositary  Shares were
entitled upon such redemption upon surrender to the Depositary of the Depositary
Receipts evidencing such Depositary Shares.

Voting of the Preferred Shares

     Upon  receipt  of  notice  of any  meeting  at  which  the  holders  of the
applicable  Preferred Shares are entitled to vote, a Depositary will be required
to mail the  information  contained  in such  notice of  meeting  to the  record
holders of the  Depositary  Receipts  evidencing  the  Depositary  Shares  which
represent  such  Preferred  Shares.  Each record holder of  Depositary  Receipts
evidencing  Depositary Shares on the record date (which will be the same date as
the record date for the  Preferred  Shares)  will be  entitled to instruct  such
Depositary as to the exercise of the voting  rights  pertaining to the amount of
Preferred Shares represented by such holder's Depositary Shares. Such Depositary
will  endeavor,  insofar as  practical,  to vote the amount of Preferred  Shares
represented by such Depositary Shares in accordance with such instructions,  and
the  Company  will  agree to take all  reasonable  action  which  may be  deemed
necessary by such  Depositary in order to enable such  Depositary to do so. Such
Depositary  will be  required  to abstain  from  voting the amount of  Preferred
Shares  represented by such Depositary  Shares to the extent it does not receive
specific  instructions from the holders of Depositary  Receipts  evidencing such
Depositary  Shares.  The Depositary  will not be responsible  for any failure to
carry out any  instruction to vote, or for the manner or effect of any such vote
made,  as long as such action or non-action is in good faith and does not result
from gross negligence or willful misconduct of such Depositary.

Liquidation Preference

     In the event of the liquidation,  dissolution or winding up of the Company,
whether  voluntary or involuntary,  the holders of each Depositary Share will be
entitled to the fraction of the liquidation  preference  accorded each Preferred
Share  represented  by such  Depositary  Share,  as set forth in the  applicable
Prospectus Supplement.

                                       19
<PAGE>

Conversion of Preferred Shares

     The  Depositary   Shares,   as  such,  will  not  be  convertible  into  or
exchangeable  for Common  Shares,  Preferred  Shares or any other  securities or
property  of the  Company.  Nevertheless,  if so  specified  in  the  applicable
Prospectus  Supplement  relating  to  an  offering  of  Depositary  Shares,  the
Depositary  Receipts may be  surrendered  by holders  thereof to the  applicable
Depositary with written  instructions to such Depositary to instruct the company
to cause  conversion  or exchange of the  Preferred  Shares  represented  by the
Depositary Share evidenced by such Depositary Receipts into Common Shares, other
shares of Preferred  Shares of the Company or such other  securities as shall be
provided  therein,  and  the  Company  will  agree  that  upon  receipt  of such
instruction  and any  amounts  payable  in  respect  thereof,  it will cause the
conversion or exchange  thereof  utilizing the same procedures as those provided
for delivery of Preferred  Shares to effect such conversion or exchange.  If the
Depositary Shares evidenced by a Depositary  Receipt are to be converted in part
only, a new  Depositary  Receipt or  Depositary  Receipts will be issued for any
Depositary Shares not to be converted.

Amendment and Termination of a Deposit Agreement

     Any  form  of  Depositary  Receipt  evidencing  Depositary  Shares  and any
provision of a Deposit  Agreement will be permitted at any time to be amended by
agreement  between the  Company  and the  applicable  Depositary.  However,  any
amendment  that  materially  and  adversely  alters the rights of the holders of
Depositary  Shares will not be effective unless such amendment has been approved
by the  existing  holders of at least a majority  of the  applicable  Depositary
Shares then outstanding.  Every holder of an outstanding  Depositary  Receipt at
the time any such amendment  becomes effective shall be deemed, by continuing to
hold such Depositary  Receipt,  to consent and agree to such amendment and to be
bound by the applicable Deposit Agreement as amended thereby.

     Any Deposit  Agreement  may be terminated by the Company upon not less than
30  days'  prior  written  notice  to the  applicable  Depositary  if  (i)  such
termination  is necessary to preserve the  Company's  status as a REIT or (ii) a
majority  of each  series  of  Preferred  Shares  affected  by such  termination
consents to such  termination,  whereupon  such  Depositary  will be required to
deliver or make available to each holder of Depositary Receipts,  upon surrender
of the  Depositary  Receipts  held by such  holder,  such  number  of  whole  or
fractional  Preferred  Shares  as  are  represented  by  the  Depositary  Shares
evidenced by such Depositary  Receipts  together with any other property held by
such  Depositary  with receipts to such  Depositary  Receipts.  The Company will
agree in each Depositary  Agreement that if such Deposit Agreement is terminated
to preserve the Company's  status as a REIT,  then the Company will use its best
efforts to list the  Preferred  Shares  issued  upon  surrender  of the  related
Depositary  Shares on a national  securities  exchange.  In addition,  a Deposit
Agreement will automatically  terminate if (i) all outstanding Depositary Shares
thereunder  shall  have  been  redeemed;  (ii)  there  shall  have  been a final
distribution in respect of the related  Preferred  Shares in connection with any
liquidation,  dissolution  or winding up of the  Company  and such  distribution
shall have been distributed to the holders of Depositary Receipts evidencing the
Depositary Shares underlying such Preferred Shares; or (iii) each of the related
Preferred  Shares shall have been converted or exchanged into  securities not so
represented by Depositary Shares.

Charges of a Depositary

     The Company will pay all transfer and other taxes and governmental  charges
arising  solely from the  existence of a Deposit  Agreement.  In  addition,  the
Company will pay the fees and expenses of a Depositary  in  connection  with the
initial deposit of the Preferred Shares and any redemption of Preferred  Shares.
However,  holders  of  Depositary  Receipts  will  pay  any  transfer  or  other
governmental  charges and the fees and expenses of a  Depositary  for any duties
requested by such holders to be performed  which are outside of those  expressly
provided for in the applicable Deposit Agreement.

Resignation and Removal of Depositary

     A Depositary  may resign at any time by delivering to the Company notice of
its election to do so, and the Company may at any time remove a Depositary,  any
such  resignation or removal to take effect upon the  appointment of a successor
Depositary.  A successor  Depositary will be required to be appointed  within 60
days after delivery of the notice of resignation or removal and will be required
to be a bank or trust company  having its principal  office in the United States
and having a combined capital and surplus of at least $50 million.

                                       20
<PAGE>

Miscellaneous

     A Depositary will be required to forward to holders of Depositary  Receipts
any  reports and  communications  from the  Company  which are  received by such
Depositary with respect to the related Preferred Shares.

     Neither  Depositary  nor the Company will be liable if it is prevented from
or delayed in, by law or any  circumstances  beyond its control,  performing its
obligations  under a Deposit  Agreement.  The  obligations  of the Company and a
Depositary under a Deposit  Agreement will be limited to performing their duties
thereunder in good faith and without gross negligence or willful misconduct, and
neither the Company nor any applicable Depositary will be obligated to prosecute
or defend any legal proceeding in respect of any Depositary Receipts, Depositary
Shares or Preferred Shares represented thereby unless satisfactory  indemnity is
furnished.  The Company and any Depositary  will be permitted to rely on written
advice of counsel or accountants,  on information provided by persons presenting
Preferred Shares represented thereby for deposit, holders of Depositary Receipts
or  other  persons  believed  in  good  faith  to  be  competent  to  give  such
information, and on documents believed in good faith to be genuine and signed by
a proper party.

     In the event a Depositary  shall receive  conflicting  claims,  requests or
instructions from any holders of Depositary  Receipts,  on the one hand, and the
Company,  on the other hand,  such  Depositary  shall be entitled to act on such
claims, requests or instructions received from the Company.

                             DESCRIPTION OF WARRANTS

     The Company may issue, together with any other series of Offered Securities
or  separately,  Warrants  entitling  the holder to purchase from or sell to the
Company,  or to receive from the Company the cash value of the right to purchase
or sell, Debt Securities,  Preferred Shares, Depositary Shares or Common Shares.
The  Warrants  are to be  issued  under  Warrant  Agreements  (each  a  "Warrant
Agreement")  to be entered  into  between the  Company and a warrant  agent (the
"Warrant  Agent"),  all as set  forth in the  applicable  Prospectus  Supplement
relating to the particular issue of Warrants.

     In  the  case  of  each  series  of  Warrants,  the  applicable  Prospectus
Supplement  will  describe  the terms of the  Warrants  being  offered  thereby,
including  the  following,  if  applicable:  (i) the  offering  price;  (ii) the
currencies  in which  such  Warrants  are being  offered;  (iii)  the  number of
Warrants offered; (iv) the securities underlying the Warrants;  (v) the exercise
price,  the  procedures for exercise of the Warrants and the  circumstances,  if
any,  that will cause the Warrants to be deemed to be  automatically  exercised;
(vi) the date on which the right shall  expire;  (vii) U.S.  federal  income tax
consequences; and (viii) other terms of the Warrants.

     Warrants may be exercised at the appropriate office of the Warrant Agent or
any other office indicated in the applicable Prospectus Supplement. Prior to the
exercise of Warrants entitling the holder to purchase any securities, holders of
such  Warrants  will not have any of the  rights of  holders  of the  securities
purchasable  upon such  exercise  and will not be entitled  to payments  made to
holders of such securities.

     The Warrant  Agreements may be amended or supplemented  without the consent
of the holders of the Warrants issued  thereunder to effect changes that are not
inconsistent  with the  provisions  of the  Warrants  and that do not  adversely
affect the interests of the holders of the Warrants.

               DESCRIPTION OF CONVERTIBLE SUBORDINATED DEBENTURES

     In October 1996 the Company issued $240 million aggregate  principal amount
of  convertible   subordinated   debentures   (the   "Convertible   Subordinated
Debentures"),  consisting  of $70  million  aggregate  principal  amount of 7.5%
Convertible   Subordinated   Debentures  due  2003,  Series  A  (the  "Series  A
Debentures"),  $130  million  aggregate  principal  amount  of 7.5%  Convertible
Subordinated Debentures due 2003, Series B (the "Series B Debentures"),  and $40
million aggregate principal amount of 7.25% Convertible  Subordinated Debentures
due 2001  (the  "7.25%  Debentures").  The  Series A  Debentures  and the  7.25%
Debentures were sold in offerings  registered  under the Securities Act, and the
Series B  Debentures  were sold in an  offering  outside  of the  United  States
pursuant to Regulation S promulgated under the Securities Act.

                                       21
<PAGE>

     The Convertible Subordinated Debentures are convertible into Common Shares,
initially at a conversion  price of $18 per Common  Share,  at any time prior to
maturity or earlier  redemption.  Such conversion price is subject to adjustment
in certain events,  including the payment of dividends or  distributions  on the
Company's  Shares in Common  Shares or certain  other  securities  issued by the
Company,  the  issuance  to all holders of Common  Shares of rights,  options or
warrants   entitling   them  to  subscribe  for  Common  Shares  (or  securities
convertible  into Common  Shares),  subdivisions  or  combinations of the Common
Shares into a greater or smaller  number of shares,  reclassification  of Common
Shares  resulting  in an  issuance  of any of the  Company's  Shares and certain
mergers or combination or sales of substantially all assets of the Company.

     As of May 1,  1997  $28.3  million  in  principal  amount  of the  Series A
Debentures had been converted into an aggregate of 1,573,879 Common Shares,  and
none of the 7.25% Debentures or Series B Debentures had been converted.

     The indebtedness  evidenced by the Convertible  Subordinated  Debentures is
subordinated  and  junior in right of  payment,  to the  extent set forth in the
trust indenture applicable thereto, to the prior payment in full of amounts then
due in respect of all indebtedness of the Company for borrowed money and certain
other indebtedness, excluding (i) indebtedness of the Company to a subsidiary or
an officer, director,  trustee or employee of the Company or a subsidiary,  (ii)
indebtedness  of the  Company  which,  pursuant  to the terms of the  instrument
creating or evidencing such  indebtedness,  is expressly made pari passu with or
subordinate in right of payment to the Convertible  Subordinated  Debentures and
(iii) any liability of the Company for taxes.

     The preceding  discussion of certain terms of the Convertible  Subordinated
Debentures is a summary of certain  provisions of the  Convertible  Subordinated
Debentures and the related trust indenture.  Such discussion does not purport to
be complete and is in all respects  subject to and  qualified in its entirety by
reference to the complete terms thereof and of such trust indenture.

                 LIMITATION OF LIABILITY; SHAREHOLDER LIABILITY

     Maryland law permits a REIT to provide, and the Declaration provides,  that
no trustee, officer, shareholder, employee or agent of the Company shall be held
to any personal liability,  jointly or severally, for any obligation of or claim
against the Company, and that, as far as practicable,  each written agreement of
the Company is to contain a  provision  to that  effect.  Despite  these  facts,
counsel  has  advised the Company  that in some  jurisdictions  the  possibility
exists that  shareholders of a  non-corporate  entity such as the Company may be
held  liable for acts or  obligations  of the  Company.  Counsel has advised the
Company  that the  State  of Texas  may not give  effect  to the  limitation  of
shareholder  liability afforded by Maryland law, but that Texas law would likely
recognize  contractual  limitations of liability such as those discussed  above.
The  Company  intends to conduct its  business in a manner  designed to minimize
potential  shareholder  liability by, among other things,  inserting appropriate
provisions in written  agreements of the Company;  however,  no assurance can be
given  that   shareholders   can  avoid   liability  in  all  instances  in  all
jurisdictions.

     The  Declaration  provides that,  upon payment by a shareholder of any such
liability,  the shareholder will be entitled to  indemnification by the Company.
There can be no assurance  that, at the time any such  liability  arises,  there
will  be  assets  of  the   Company   sufficient   to  satisfy   the   Company's
indemnification obligation. The Trustees intend to conduct the operations of the
Company,  with the advice of counsel,  in such a way as to minimize or avoid, as
far as practicable,  the ultimate  liability of the shareholders of the Company.
The  Trustees  do not intend to  provide  insurance  covering  such risks to the
shareholders.

        REDEMPTION; BUSINESS COMBINATIONS AND CONTROL SHARE ACQUISITIONS

Redemption and Business Combinations

     For the Company to qualify as a REIT under the Code,  in any taxable  year,
not more than 50% in value of its outstanding  Shares may be owned,  directly or
indirectly by five or fewer individuals during the last six months of such year,
and the shares must be owned by 100 or more persons  during at least 335 days of
a taxable year or a proportionate part of a taxable year less than 12 months. In
order to meet  these  and other  requirements,  the  Trustees  have the power to
redeem or prohibit the transfer of a sufficient  number of Shares to maintain or
bring the ownership of the Shares into  conformity  with such  requirements.  In
connection  with the foregoing,  if the Trustees  shall, at any time and in good

                                       22
<PAGE>
faith,  be  of  the  opinion  that  direct  or  indirect   ownership  of  shares
representing  more  than  8.5% in value of the  total  Shares  outstanding  (the
"Excess  Shares") has or may become  concentrated in the hands of one beneficial
owner,  other than Excepted  Persons,  the Trustees  shall have the power (i) to
purchase from any  shareholder  of the Company such Excess  Shares,  and (ii) to
refuse to  transfer  or issue  Shares to any person  whose  acquisition  of such
Shares would,  in the opinion of the Trustees,  result in the direct or indirect
beneficial  ownership  by any  person of Shares  representing  more than 8.5% in
value of the  outstanding  Shares.  Any  transfer of Shares,  options,  or other
securities  convertible  into Shares that would create a beneficial owner (other
than any of the Excepted Persons) of Shares representing more than 8.5% in value
of the total Shares outstanding shall be deemed void ab initio, and the intended
transferee  shall be deemed never to have had an interest  therein.  Further the
Declaration  provides  that  transfers  or  purported  acquisitions,   directly,
indirectly or by attribution,  of Shares, or securities convertible into Shares,
that could result in disqualification of the Company as a REIT are null and void
and permits the Trustees to repurchase  Shares or other securities to the extent
necessary to maintain the Company's status as a REIT. The purchase price for any
Shares  so  purchased  shall be  determined  by the  price of the  Shares on the
principal  exchange  on  which  they  are then  traded,  or if no such  price is
available, then the purchase price shall be equal to the net asset value of such
Shares as determined by the Trustees in accordance with applicable law. From and
after the date fixed for purchase by the Trustees, and so long as payment of the
purchase  price for the  Shares to be so  redeemed  shall have been made or duly
provided for, the holder of any Excess Shares so called for purchase shall cease
to be entitled to  distributions,  voting rights and any and all other  benefits
with respect to such Shares,  except the right to payment of the purchase  price
for the Shares.

     The  Declaration  also  requires  that  Business  Combinations  between the
Company  and a  beneficial  holder of 10% or more of the  outstanding  Shares (a
"Related Person") be approved by the affirmative vote of the holders of at least
75% of the Shares unless (1) the Trustees by unanimous  vote or written  consent
shall have  expressly  approved in advance the  acquisition  of the  outstanding
Shares that caused the Related  Person to become a Related  Person or shall have
approved the Business  Combination  prior to the Related Person  involved in the
Business  Combination  having  become  a  Related  Person;  or (2) the  Business
Combination  is solely  between the Company  and a 100% owned  affiliate  of the
Company.  As  permitted  by law,  the Company has elected to be governed by such
provisions  rather  than  the  provisions  of  Subtitle  6 of  Title  3  of  the
Corporations  and  Associations  Article  of  the  Annotated  Code  of  Maryland
regarding business combinations.

     Under the Declaration the number of trustees may be fixed from time to time
by  two-thirds  of the  Trustees or by an amendment  of the  Declaration  by the
shareholders  of the  Company,  with a  minimum  of three  and a  maximum  of 12
trustees, a majority of whom must be Independent Trustees. The Declaration fixes
the current  number of trustees of the Company at five and divides the  Trustees
into three groups.  Trustees in each group are elected to three-year  terms.  As
the  Trustees'  terms  expire,  replacements  are  elected by a majority  of the
outstanding  Shares.  The  classified  nature of the  Trustees  may make it more
difficult for the  shareholders  to remove the management of the Company than if
all  trustees  were  elected on an annual  basis.  Vacancies  may be filled by a
majority of the remaining trustees,  except that a vacancy among the Independent
Trustees must be filled by a majority of the remaining  Independent  Trustees or
by majority vote of the Company's  shareholders.  Any trustee may be removed for
cause by all the remaining  trustees,  or without cause by vote of two-thirds of
the Shares then outstanding and entitled to vote thereon.

     The provisions regarding business combinations and the classified nature of
the Trustees and certain  other  matters may not be repealed or amended  without
the affirmative  vote of at least 75% of the of the shareholders of the Company,
provided that the Trustees,  by two-thirds  vote,  may,  without the approval or
consent  of the  shareholders,  adopt  any  amendment  that  they in good  faith
determine  to be  necessary to permit the Company to qualify as a REIT under the
Code.

     The foregoing  provisions  may have the effect of  discouraging  unilateral
tender offers or other takeover proposals which certain  shareholders might deem
in their interests or pursuant to which they might receive a substantial premium
for their  Shares.  The  provisions  could  also have the  effect of  insulating
current  management  against the  possibility of removal and could,  by possibly

                                       23
<PAGE>
reducing  temporary  fluctuations  in market  price caused by  accumulations  of
Shares,  deprive  shareholders of opportunities to sell at a temporarily  higher
market  price.  However,  the Trustees  believe  that  inclusion of the business
combination  provisions  in the  Declaration  may help assure fair  treatment of
shareholders and preserve the assets of the Company.

Control Share Acquisition

     Maryland law provides for a limitation of voting rights in a "control share
acquisition."  The Maryland  statute defines a control share  acquisition at the
20%,  33 1/3%  and 50%  acquisition  levels,  and  requires  a  two-thirds  vote
(excluding  shares  owned  by  the  acquiring  person  and  certain  members  of
management)  to  accord  voting  rights to shares  acquired  in a control  share
acquisition.  The statute  would  require  the target  company to hold a special
meeting at the request of an actual or proposed  control share acquiror  subject
to compliance with certain conditions by such acquiror. In addition,  unless the
charter,  declaration of trust or by-laws provide  otherwise,  the statute gives
the company, within certain time limitations, various redemption rights if there
is a  shareholder  vote on the  issue  and the  grant of  voting  rights  is not
approved,  or if an "acquiring  person statement" is not delivered to the target
company within 10 days following a control share acquisition.  Moreover,  unless
the charter,  declaration  of trust or by-laws  provide  otherwise,  the statute
provides that if, before a control share acquisition  occurs,  voting rights for
control shares are approved at a shareholders'  meeting and the acquiror becomes
entitled  to vote a majority  of the  shares  entitled  to vote,  then all other
shareholders may exercise appraisal rights. The statute does not apply to shares
acquired in a merger,  consolidation or share exchange if the company is a party
to the  transaction.  An  acquisition of shares may be exempted from the control
share statute provided that a charter,  declaration of trust or by-law provision
is adopted for such purpose prior to the control share acquisition. There are no
such provisions in the Declaration or By-laws of the Company.

Rights Plan

   
     In October 1994 the trustees adopted a shareholder rights plan (the "Rights
Plan")  .  The  Rights  Plans  provides  for  the  distribution  of  one  Junior
Participating Preferred Share purchase right (a "Right") for each Common Share .
Each  Right  entitles  the  holder  to buy  1/100th  of a  Junior  Participating
Preferred Share (or, in certain circumstances, to receive cash, property, Common
Shares or other  securities  of the  Company)  at an  exercise  price of $50 per
1/100th of a Junior Participating  Preferred Share. Certain powers,  preferences
and rights and  certain  qualifications,  limitations  and  restrictions  of the
Junior Participating Preferred Shares are summarized above under "Description of
Preferred Shares--Junior Participating Shares."

     Initially,  the Rights are  attached to  certificates  representing  Common
Shares.  The Rights will separate  from such Common  Shares and a  "Distribution
Date" will occur upon earlier of (1) 10 business days (or such later date as the
Trustees may determine  before a  Distribution  Date occurs)  following a public
announcement  by the Company  that a person or group  affiliated  or  associated
persons,  with certain exceptions (an "Acquiring Person"),  has acquired, or has
obtained  the  right  to  acquire,  beneficial  ownership  of 10% or more of the
outstanding  Common  Shares  (the  date of  such  announcement  being  a  "Share
Acquisition  Date") or (ii) 10 business days (or such later date as the Trustees
may determine before a Distribution Date occurs) following the commencement of a
tender  offer or  exchange  offer  that  would  result in a person  becoming  an
Acquiring Person.
    

     Until the  Distribution  Date,  (i) the  Rights  will be  evidenced  by the
certificates  for Common Shares and will be transferred  with and only with such
Common  Share  certificates,  (ii)  Common  Share  certificates  will  contain a
notation  incorporating  the rights agreement  pursuant to which the Rights were
issued  (the  "Rights  Agreement")  by  reference  and (iii) the  surrender  for
transfer of any certificates for Common Shares  outstanding will also constitute
the transfer of the Rights associated with the Common Shares represented by such
certificates.

     The Rights are not exercisable  until the Distribution Date and will expire
at the close of  business  on October  17,  2004,  unless  earlier  redeemed  or
exchanged by the Company as described  below.  Until a Right is  exercised,  the
holder  thereof,  as  such,  has no  rights  as a  shareholder  of the  Company,
including, without limitation, the right to vote or to receive dividends.

                                       24
<PAGE>

     In the event (a  "Flip-In  Event") a Person  becomes  an  Acquiring  Person
(except pursuant to a tender or exchange offer for all outstanding Common Shares
at a price and on terms which a majority of the Company's  Outside  Trustees (as
defined in the Rights  Agreement)  determines to be fair to and otherwise in the
best  interests  of the Company and its  shareholders  (a "fair  offer")),  each
holder of a Right will  thereafter  have the right to receive,  upon exercise of
such Right, Common Shares (or, in certain circumstances, cash, property or other
securities  of the  Company)  having a Current  Market  Price (as defined in the
Rights  Agreement)  equal  to  two  times  the  exercise  price  of  the  Right.
Notwithstanding  the  foregoing,  following the occurrence of any Flip-In Event,
all Rights that are, or (under  certain  circumstances  specified  in the Rights
Agreement)  were,  beneficially  owned by any  Acquiring  Person  (or by certain
related  parties)  will be null and void in the  circumstances  set forth in the
Rights  Agreement.  However,  Rights  will  not  be  exercisable  following  the
occurrence  of any  Flip-In  Event  until  such time as the Rights are no longer
redeemable by the Company as set forth below.

     In the event (a "Flip-Over  Event") that, at any time on or after the Share
Acquisition  Date, (i) the Company shall take part in a merger or other business
combination  transaction  (other than certain  mergers that follow a fair offer)
and the Company shall not be the surviving entity or (ii) the Company shall take
part in a merger or other business  combination  transaction in which the Common
Shares are changed or exchanged  (other than certain  mergers that follow a fair
offer) or (iii) 50% or more of the Company's  assets or earning power is sold or
transferred,  each holder of a Right (except Rights which  previously  have been
voided,  as set forth above) shall  thereafter  have the right to receive,  upon
exercise,  a number of shares of common stock of the acquiring  company having a
Current Market Price equal to two times the exercise price of the Right. Flip-In
Events and Flip-Over Events are collectively referred to as "Triggering Events."

     The Purchase Price payable and the number of Junior Participating Preferred
Shares (or the  amount of cash,  property  or other  securities)  issuable  upon
exercise  of the Rights are subject to  adjustment  from time to time to prevent
dilution (i) in the event of a share dividend on, or a subdivision,  combination
or  reclassification  of, the Junior  Participating  Preferred  Shares,  (ii) if
holders of the Junior Participating  Preferred Shares are granted certain rights
or  warrants  to  subscribe  for  Junior   Participating   Preferred  Shares  or
convertible  securities  at less than the  Current  Market  Price of the  Junior
Participating  Preferred Shares or (iii) upon the distribution to holders of the
Junior  Participating  Preferred  Shares of evidences of  indebtedness or assets
(excluding  regular  quarterly  cash  dividends)  or of  subscription  rights or
warrants  (other than those  referred to above).  With  certain  exceptions,  no
adjustment in the Purchase Price will be required until  cumulative  adjustments
amount to at least 1% of the  Purchase  Price.  The  Company is not  required to
issue fractional  Shares upon the exercise of any Right, and in lieu thereof,  a
cash payment will be made.

     At any time until 10 business days  following the Share  Acquisition  Date,
the Company may redeem the Rights in whole,  but not in part, at a price of $.01
per Right,  payable,  at the option of the Company,  in cash,  Common  Shares or
other  consideration  as  the  Trustees  may  determine.  Immediately  upon  the
effectiveness of the action of the Trustees  ordering  redemption of the Rights,
the Rights will terminate and the only right of the holders of Rights will be to
receive the $.01 per Right redemption price.

     The term of the  Rights,  other  than key  financial  terms and the date on
which  the  Rights  expire,  may  be  amended  by  the  Trustees  prior  to  the
Distribution  Date.  Thereafter,  the provisions of the Rights  Agreement may be
amended  by the  Trustees  only  in  order  to cure  any  ambiguity,  defect  or
inconsistency,  to make changes which do not  adversely  affect the interests of
holders of Rights  (excluding the interests of any Acquiring  Person and certain
other  related  parties)  or to shorten or lengthen  any time  period  under the
Rights  Agreement;  provided,  however,  that no  amendment to lengthen the time
period  governing  redemption is permitted to be made at such time as the Rights
are not redeemable.

                              PLAN OF DISTRIBUTION

     The Company may sell the Offered Securities to one or more underwriters for
public offering and sale by them or may sell the Offered Securities to investors
directly or through agents.  Any such underwriter or agent involved in the offer
and sale of the Offered  Securities  will be named in the applicable  Prospectus
Supplement.

                                       25
<PAGE>

     The distribution of Offered Securities may be effected from time to time in
one or more  transactions at a fixed price or prices,  which may be changed,  at
market prices  prevailing at the time of sale, at prices  related to such market
prices  or at  negotiated  prices.  In  connection  with  the  sale  of  Offered
Securities,  underwriters  or agents may  receive or be deemed to have  received
compensation  from the Company or from  purchasers  in the form of  underwriting
discounts, concessions or commissions.  Underwriters may sell Offered Securities
to or through dealers,  and such dealers may receive compensation in the form of
discounts, concessions or commissions from the underwriters or from purchasers.

     Any underwriting compensation paid by the Company to underwriters or agents
in  connection  with the  offering  of Offered  Securities,  and any  discounts,
concessions or commissions  allowed by  underwriters to  participating  dealers,
will be set forth in the applicable Prospectus Supplement. Underwriters, dealers
and agents  participating in the  distribution of the Offered  Securities may be
deemed  to be  underwriters,  and any  discounts,  concessions  and  commissions
received  by them and any  profit  realized  by them on  resale  of the  Offered
Securities may be deemed to be underwriting discounts and commissions, under the
Securities  Act.  Underwriters,  dealers  and  agents  may  be  entitled,  under
agreements  entered  into  with the  Company,  to  indemnification  against  and
contribution toward certain civil liabilities,  including  liabilities under the
Securities Act.

     If so indicated in the applicable Prospectus  Supplement,  the Company will
authorize  underwriters  or other  persons  acting  as the  Company's  agents to
solicit offers by certain  institutions to purchase Offered  Securities from the
Company at the public  offering  price set forth in such  Prospectus  Supplement
pursuant to  contracts  providing  for payment and  delivery on a future date or
dates.  Institutions  with whom such  contracts,  when  authorized,  may be made
include  commercial  and savings  banks,  insurance  companies,  pension  funds,
investment  companies,   educational  and  charitable  institutions,  and  other
institutions,  but will in all cases be subject to the  approval of the Company.
Any such  contracts  will be subject to the  condition  that the  purchase by an
institution of the Offered  Securities covered by its contracts shall not at the
time of delivery be prohibited  under the law of any  jurisdiction in the United
States to which such  institution  is subject  and,  if a portion of the Offered
Securities is being sold to  underwriters,  may be subject to the condition that
the Company shall have sold to such underwriters the Offered Securities not sold
for delayed delivery.  The underwriters and such other persons will not have any
responsibility in respect of the validity or performance of such contracts.

     Unless  otherwise  specified  in the related  Prospectus  Supplement,  each
series of Offered  Securities  will be a new issue with no  established  trading
market,  other  than  Common  Shares  which  are  listed  on the New York  Stock
Exchange.  Any Common  Shares sold pursuant to a Prospectus  Supplement  will be
listed on such  Exchange.  The  Company  may  elect to list any other  series of
Offered  Securities  on  an  exchange,  but  is  not  obligated  to do  so.  Any
underwriters  to whom  Offered  Securities  are sold by the  Company  for public
offering  and  sale  may  make a market  in such  Offered  Securities,  but such
underwriters  will not be  obligated  to do so and may  discontinue  any  market
making at any time without notice. No assurance can be given as to the liquidity
of or the trading markets for any Offered Securities.

     Certain of the  underwriters  and their  affiliates  may be  customers  of,
engage  in  transactions  with and  perform  services  for the  Company  and its
subsidiaries in the ordinary course of business.

     The specific terms and manner of sale of the Offered Securities will be set
forth or summarized in the applicable Prospectus Supplement.

                                  LEGAL MATTERS

     Certain legal matters with respect to the Offered Securities offered by the
Company will be passed upon for the Company by Sullivan & Worcester LLP, Boston,
Massachusetts.  Sullivan  &  Worcester  LLP,  will  rely,  as to all  matters of
Maryland law, upon one or more  opinions of Piper & Marbury  L.L.P.,  Baltimore,
Maryland.  Barry  M.  Portnoy,  a  retired  partner  of the firm of  Sullivan  &
Worcester LLP, is a Managing  Trustee of the Company and HPT, a director and 50%
shareholder of the HRPT Advisors, Inc., the advisor to the Company ("Advisors"),
and a director and/or significant  shareholder of certain lessees and mortgagors
of the Company.  Sullivan & Worcester LLP represents  Advisors,  HPT, certain of
such lessees and mortgagors  and certain  affiliates of each of the foregoing on
various matters.

                                       26
<PAGE>


                                     EXPERTS

     The consolidated  financial  statements of the Company  incorporated in the
Company's  Annual Report on Form 10-K for the year ended  December 31, 1996 have
been  audited by Ernst & Young LLP,  independent  auditors as set forth in their
report thereon  incorporated  by reference  therein and  incorporated  herein by
reference  which,  as to the year 1996, is based in part on the report of Arthur
Andersen LLP,  independent  public  accountants.  Such financial  statements are
incorporated  herein by reference in reliance  upon such reports  given upon the
authority of such firms as experts in accounting and auditing.

     The  consolidated  financial  statements  of Marriott  International,  Inc.
incorporated by reference in this  Prospectus and elsewhere in the  registration
statement  to the extent and for the periods  indicated in their  reports,  have
been audited by Arthur Andersen LLP,  independent  public  accountants,  and are
included herein in reliance upon the authority of said firm as experts in giving
said reports.

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


THE AMENDED AND  RESTATED  DECLARATION  OF TRUST OF THE  COMPANY,  DATED JULY 1,
1994, A COPY OF WHICH, TOGETHER WITH ALL AMENDMENTS THERETO (THE "DECLARATION"),
IS DULY FILED IN THE OFFICE OF THE DEPARTMENT OF ASSESSMENTS AND TAXATION OF THE
STATE OF  MARYLAND,  PROVIDES  THAT THE NAME "HEALTH AND  RETIREMENT  PROPERTIES
TRUST" REFERS TO THE TRUSTEES UNDER THE  DECLARATION  COLLECTIVELY  AS TRUSTEES,
BUT NOT INDIVIDUALLY OR PERSONALLY,  AND THAT NO TRUSTEE, OFFICER,  SHAREHOLDER,
EMPLOYEE  OR  AGENT OF THE  COMPANY  SHALL  BE HELD TO ANY  PERSONAL  LIABILITY,
JOINTLY OR SEVERALLY,  FOR ANY OBLIGATION OF, OR CLAIM AGAINST, THE COMPANY. ALL
PERSONS  DEALING WITH THE COMPANY,  IN ANY WAY, SHALL LOOK ONLY TO THE ASSETS OF
THE COMPANY FOR THE PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.


                                       27

<PAGE>
                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

     Set forth below is an estimate (except in the case of the registration fee)
of the  amount  of fees and  expenses  to be  incurred  in  connection  with the
issuance and distribution of the Offered  Securities  registered  hereby,  other
than underwriting discounts and commissions.


Registration Fee Under Securities Act                       $ 263,666
Blue Sky Fees and Expenses                                     10,000
Legal Fees and Expenses                                       700,000
Accounting Fees and Expenses                                  300,000
Printing and Engraving                                        200,000
Rating Agencies Fees                                           75,000
Trustee Fees (including counsel fees)                          35,000
Miscellaneous Fees and Expenses                               166,334
                                                           ----------
   Total:                                                  $1,750,000


Item 15. Indemnification of Directors and Officers

     Section 7.4 of the  Company's  Amended and Restated  Declaration  of Trust,
filed as an Exhibit to the Company's  Current  Report on Form 8-K dated July 10,
1996,  which  provides  for  indemnification  of  Trustees  and  officers of the
Company, is hereby incorporated by reference.

     Reference is made to the Underwriting  Agreements (Exhibits 1.1 through 1.5
hereto)  which  may  contain  certain  provisions  for  indemnification  by  the
Underwriters of the Company,  Trustees,  officers and controlling  persons under
certain circumstances.

Item 16. Exhibits

1.1   -  Form of Underwriting Agreement (for Debt Securities)*
1.2   -  Form of Underwriting Agreement (for Preferred Shares)*
1.3   -  Form of Underwriting Agreement (for Depositary Shares)*
1.4   -  Form of Underwriting Agreement (for Common Shares)*
1.5   -  Form of Underwriting Agreement (for Warrants)*
3.1   -  Amended and Restated  Declaration  of Trust as amended by the amendment
         approved by the shareholders  June 28, 1996 and filed with the Maryland
         Department of Assessments and Taxation on July 9, 1996 (Incorporated by
         reference to the Company's  Current  Report on Form 8-K, dated July 10,
         1996)
3.2   -  Amendment, effective March 3, 1997, to Health and Retirement Properties
         Trust's  Amended and Restated  Declaration  of Trust  providing  for an
         increase in the authorized common shares of beneficial  interest,  $.01
         par value per share, from 100,000,000 to 125,000,000.  (Incorporated by
         reference to the Company's  Current  Report on Form 8-K, dated March 3,
         1997)
   
3.3   -  Amendment,  effective  May 14, 1997, to the Articles  Supplementary  to
         Health  and  Retirement   Properties   Trust's   Amended  and  Restated
         Declaration of Trust providing for an increase in the authorized Junior
         Participating Preferred Shares, from 100,000 to 125,000.  (Incorporated
         by reference to the Company's  Quarterly Report on Form 10-Q, dated May
         15, 1997)
3.4   -  Amended and Restated Bylaws (Incorporated by reference to the Company's
         Annual Report on Form 10-K for the year ended December 31, 1995)
4.1   -  Form of Senior Indenture**
4.2      Form of Subordinated  Indenture** 
4.3   -  Form of Senior Debt Security* 
4.4   -  Form of Subordinated  Debt Security* 
4.5   -  Form of Articles Supplementary  for  the  Preferred  Shares*  
4.6   -  Form of Deposit  Agreement,  including  form of Depositary  Receipt for
         Depositary Shares*
4.7   -  Form of Preferred Shares Certificate*
4.8   -  Form of Debt Warrant Agreement, including form of Debt Warrant*
4.9   -  Form of Preferred Share Warrant Agreement,  including form of Preferred
         Share Warrant*

                                      II-1
<PAGE>

4.10  -  Form of Common Share Warrant Agreement,  including form of Common Share
         Warrant*
4.11  -  Rights  Agreement  dated October 17, 1994 between the Company and State
         Street Bank and Trust Company,  as Rights Agent  (including the form of
         Articles Supplementary  relating to the Junior Participating  Preferred
         Shares annexed as an exhibit thereto) (Incorporated by reference to the
         Company's Registration Statement on Form 8-A dated October 24, 1994)
    
4.12  -  Indenture  dated  September  20,  1996  between  the  Company and Fleet
         National Bank ("Fleet"),  as trustee  (Incorporated by reference to the
         form of Indenture  filed as Exhibit 4.1 to the  Company's  Registration
         Statement  on Form S-3,  No.  333-02863,  as modified by the  Company's
         Registration Statement on Form 8-A dated October 1, 1996)
4.13  -  First Supplemental Indenture between the Company and Fleet, as trustee,
         relating to the Company's 7.5% Senior Subordinated Debentures due 2003,
         Series A (including  form of debenture)  (Incorporated  by reference to
         the Company's Current Report on Form 8-K dated October 7, 1996)
4.14  -  Second  Supplemental  Indenture  between  the  Company  and  Fleet,  as
         trustee,  relating to the Company's 7.5% Senior Subordinated Debentures
         due 2003,  Series B  (including  form of  debenture)  (Incorporated  by
         reference to the Company's  Current Report on Form 8-K dated October 7,
         1996)
4.15  -  Third Supplemental Indenture between the Company and Fleet, as trustee,
         relating to the Company's 7.25% Senior Subordinated Debentures due 2001
         (including  form  of  debenture)  (Incorporated  by  reference  to  the
         Company's Current Report on Form 8-K dated October 7, 1996)
   
5.1      Opinion of Sullivan & Worcester  LLP** 
5.2   -  Opinion of Piper & Marbury L.L.P.**
    
8     -  Opinion of Sullivan & Worcester LLP re: tax matters *
12    -  Statement Regarding Computation of Ratios of Earnings to Fixed Charges
23.1  -  Consent of Ernst & Young LLP
23.2  -  Consents of Arthur Andersen LLP
   
23.3  -  Consent of Sullivan & Worcester LLP** 
23.4  -  Consent of Piper & Marbury L.L.P.**
24    -  Powers of Attorney** 25.1 - Statement of Eligibility of Trustee on Form
         T-1*
    
- -------------
   
* To be filed by amendment or  incorporated  by reference in connection with the
offering of Offered  Securities,  as appropriate.  
** Previously filed with this Registration Statement on May 12, 1997.
    

Item 17. Undertakings

(a)  The undersigned Registrant hereby undertakes:

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

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

     (ii) To reflect in the  prospectus  any facts or events  arising  after the
          effective  date of the  registration  statement  (or the  most  recent
          post-effective  amendment  thereof)  which,  individually  or  in  the
          aggregate, represent a fundamental change in the information set forth
          in this registration  statement.  Notwithstanding  the foregoing,  any
          increase  or decrease  in volume of  securities  offered (if the total
          dollar  value of  securities  offered  would not exceed that which was
          registered)  and  any  deviation  from  the  low  or  high  end of the
          estimated  maximum  offering  range  may be  reflected  in the form of
          prospectus filed with the Commission  pursuant to Rule 424(b) (Section
          230.424(b) of 17 C.F.R.) if, in the  aggregate,  the changes in volume
          and price represent no more than a 20% change in the maximum aggregate
          offering  price set forth in the  "Calculation  of  Registration  Fee"
          table in the effective registration statement; and

                                      II-2
<PAGE>


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

     provided,  however,  that  subparagraphs  (i) and (ii) do not  apply if the
     information required to be included in a post-effective  amendment by those
     paragraphs  is contained in the periodic  reports  filed by the  Registrant
     pursuant to Section 13 or Section 15(d) of the  Securities and Exchange Act
     of 1934 that are incorporated by reference in this registration statement.

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

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

(b)  The undersigned Registrant hereby further undertakes that, for the purposes
     of determining  any liability under the Securities Act of 1933, each filing
     of the  Registrant's  annual  report  pursuant to Section  13(a) or Section
     15(d) of the Securities  Exchange of 1934 that is incorporated by reference
     in this  registration  statement  shall be deemed to be a new  registration
     statement  relating to the Securities  offered herein,  and the offering of
     such  Securities  at that time shall be deemed to be the initial  bona fide
     offering thereof.

(c)  Insofar as indemnification for liabilities arising under the Securities Act
     of 1933 may be permitted to trustees,  officers and controlling  persons of
     the Registrant  pursuant to the provisions  described under Item 15 of this
     registration statement, or otherwise (other than insurance), the Registrant
     has  been  advised  that in the  opinion  of the  Securities  and  Exchange
     Commission  such  indemnification  is against public policy as expressed in
     such Act and is,  therefore,  unenforceable.  In the event that a claim for
     indemnification  against  such  liabilities  (other than the payment by the
     Registrant  of  expenses  incurred  or  paid  by  a  trustee,   officer  or
     controlling  person of the  Registrant  in the  successful  defense  of any
     action,  suit or  proceeding)  is  asserted  by such  trustee,  officer  or
     controlling person in connection with the Securities being registered,  the
     Registrant  will,  unless in the opinion of its counsel the matter has been
     settled  by  controlling  precedent,  submit  to  a  court  of  appropriate
     jurisdiction  the question  whether such  indemnification  by it is against
     public  policy as  expressed  in such Act and will be governed by the final
     adjudication of such issue.

(d)  The undersigned registrant hereby undertakes that:

     (1) For purposes of determining  any liability  under the Securities Act of
     1933, the information  omitted from the form of prospectus filed as part of
     this  Registration  Statement in reliance upon Rule 430A and contained in a
     form of prospectus  filed by the Company  pursuant to Rule 424(b)(1) or (4)
     or  497(h)  under  the  Securities  Act  shall be deemed to be part of this
     Registration Statement as of the time it was declared effective; and

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

(e)  The undersigned registrant hereby undertakes to file an application for the
     purpose of determining  the  eligibility  of each Indenture  Trustee to act
     under  subsection  (a)  of  Section  310  of  the  Trust  Indenture  Act in
     accordance  with the rules and  regulations  prescribed  by the  Commission
     under Section 305(b)(2) of the Trust Indenture Act.

                                      II-3
                                                      

<PAGE>

                                   SIGNATURES

   
         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant has duly caused this  registration  statement to be signed on its
behalf by the  undersigned,  thereunto duly  authorized,  in the City of Newton,
Commonwealth of Massachusetts, on May 29, 1997.
    

                               HEALTH AND RETIREMENT PROPERTIES TRUST

                               By:/s/David J. Hegarty
                                    David J. Hegarty
                                    President and Chief Operating Officer

   
         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration  Statement on Form S-3 relating to Debt Securities,  Preferred
Shares,  Depositary Shares,  Common Shares and Warrants has been signed below on
May  29,  1997 by the  following  persons  in the  capacities  and on the  dates
indicated;  and each of the  undersigned  officers  and  trustees  of Health and
Retirement  Properties Trust,  hereby severally  constitute and appoint David J.
Hegarty,  Ajay  Saini,  Gerard M.  Martin,  Barry M.  Portnoy and  Alexander  A.
Notopoulos,  Jr.,  and  each of them,  to sign  for him,  and in his name in the
capacity  indicated  below,  this  Registration  Statement  for the  purpose  of
registering  such securities  under the Securities Act of 1933, as amended,  and
any and all amendments  thereto,  and any other Registration  Statement filed by
Health and Retirement  Properties  Trust pursuant to Rule 462(b) which registers
additional amounts of such securities for the offering or offerings contemplated
by this  Registration  Statement  (a  "462(b)  Registration  Statement")  hereby
ratifying and  confirming  our signatures as they may be signed by our attorneys
to this Registration  Statement,  any 462(b) Registration  Statement and any and
all amendments to either thereof.


<TABLE>
<CAPTION>

          Signature                                    Title                                      Date
<S>                                     <C>                                                   <C>

/s/David J. Hegarty                      President and Chief Operating                          May 29, 1997
David J. Hegarty                         Officer (principal executive officer)

/s/Ajay Saini                            Treasurer and Chief Financial                          May 29, 1997
Ajay Saini                               Officer

/s/ Bruce M. Gans, M.D.*                 Trustee                                                May 29, 1997
Bruce M. Gans, M.D.

/s/Rev. Justinian Manning, C.P.*         Trustee                                                May 29, 1997
Rev. Justinian Manning, C.P.

/s/Gerard M. Martin*                     Managing Trustee                                       May 29, 1997
Gerard M. Martin

/s/ Barry M. Portnoy*                    Managing Trustee                                       May 29, 1997
Barry M. Portnoy

/s/ Ralph J. Watts*                      Trustee                                                May 29, 1997
Ralph J. Watts


* By /s/ David J. Hegarty
     David J. Hegarty, as attorney-in-fact
</TABLE>
    
                                      II-4

<TABLE>
<CAPTION>
                                      HEALTH AND RETIREMENT PROPERTIES TRUST

                                                   Exhibit 12.1
                                     Computation of Earnings to Fixed Charges
                                              (dollars in thousands)


                                                                                        
                                                                    YEARS ENDED DECEMBER 31,                         Qtr. Ended 
                                                 ----------------------------------------------------------------     March 31,  
                                                  1992          1993          1994          1995         1996            1997    
                                                  ----          ----          ----          ----         ----            ----  
<S>                                           <C>            <C>           <C>           <C>           <C>           <C>

EARNINGS:

INCOME BEFORE GAIN ON SALE OF
PROPERTIES AND
EXTRAORDINARY ITEMS                            $ 27,243       $ 37,738      $ 57,578      $ 61,760      $ 77,164      $ 19,399
ADJUSTMENT FOR FIXED CHARGES                     10,419         66,529        10,096        26,218        23,279         8,167
                                               --------       --------      --------      --------      --------      --------
         TOTAL EARNINGS                        $ 37,662       $ 44,267      $ 67,974      $ 87,978      $100,443      $ 27,566
                                                                                                                    
FIXED CHARGES:                                                                                                      
                                                                                                                    
INTEREST EXPENSE                               $  9,466       $  6,217      $  8,965      $ 24,274      $ 22,545      $  7,848
AMORTIZATION                                        953            312         1,131         1,944           734           319
                                               --------       --------      --------      --------      --------      --------
         TOTAL FIXED CHARGES                   $ 10,419       $  6,529      $ 10,096      $ 26,218      $ 23,279      $  8,167
RATIO OF EARNINGS TO FIXED                                                                                          
CHARGES                                             3.6            6.8           6.7           3.4           4.3           3.4
                                                                                                                      


</TABLE>





                                                                    Exhibit 23.1


                         Consent of Independent Auditors

We consent to the reference to our firm under the caption "Experts" in Amendment
No.  1 to the  Registration  Statement  (Form  S-3  No  333-26887)  and  related
Prospectus of Health and Retirement  Properties  Trust for the  registration  of
$1,000,000,000  of "Offered  Securities" and to the  incorporation  by reference
therein of our report dated February 6, 1997,  with respect to the  consolidated
financial  statements of Health and Retirement  Properties Trust incorporated by
reference in its Annual Report (Form 10-K) for the year ended  December 31, 1996
and the related financial  statement  schedules  included therein filed with the
Securities and Exchange Commission.

                                               /s/ Ernst & Young LLP
                                               ERNST & YOUNG LLP

Boston, Massachusetts
May 27, 1997


                                                             Exhibit 23.2


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

         As   independent   public   accountants,   we  hereby  consent  to  the
incorporation  by reference in this  registration  statement of our report dated
January 10, 1997, included in Health and Retirement Properties Trust's Form 10-K
for the year ended  December 31, 1996 and to all references to our firm included
in this registration statement.

                                                /s/ Arthur Andersen LLP
                                                ARTHUR ANDERSEN LLP

Washington, D.C.
May 28, 1997



<PAGE>






                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent  public  accountants,  we hereby consent to the  incorporation by
reference in Health and Retirement  Properties  Trust's  registration  statement
(File No.  333-26887) of our report dated February 24, 1997 included in Marriott
International,  Inc.'s  Form 10-K for the year  ended  January 3, 1997 (File No.
1-12188)  and to all  references  to our  Firm  included  in  this  registration
statement.

                                               /s/ Arthur Andersen LLP

Washington, D.C.
May 28, 1997



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