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                                                                   Exhibit 10.46

                              PURCHASE AGREEMENT


                  THIS PURCHASE AGREEMENT ("Agreement") is made as of the 10th
day of October, 1997, by and among Starwood Lodging Trust, a Maryland real
estate investment trust (the "Trust"), Starwood Lodging Corporation, a Maryland
corporation (the "Corporation") (the Trust and the Corporation, being
collectively referred to as the "Company"), and UBS Limited, an English
corporation ("UBS Limited") and Union Bank of Switzerland, London Branch, acting
through its agent UBS Securities LLC ("UBS-LB") (UBS Limited and UBS-LB being
hereinafter collectively called the "UBS Parties" and sometimes individually, a
"UBS Party"). References herein to the "Company" refer to the Trust and the
Corporation, and those entities respectively owned or controlled by the Trust or
the Corporation.

                  IN CONSIDERATION of the mutual covenants contained in this
Purchase Agreement, the Trust, the Corporation and the UBS Parties agree as
follows:

                           SECTION 1. Authorization of Sale of the Shares.
Subject to the terms and conditions of this Agreement, the Trust has authorized
the issuance to UBS Limited of up to an aggregate of 2,500,000 shares of
beneficial interest, $.01 par value per share, of the Trust (the "Trust Shares")
and the Corporation has authorized the issuance to UBS of up to an aggregate of
2,500,000 shares of Common Stock, par value $0.01 per share (the "Corporation
Shares"), which Trust Shares and Corporation Shares are paired and traded as a
unit consisting of one (1) Trust Share and one (1) Corporation Share
(hereinafter each such paired unit is referred to as a "Paired Share" and the
Paired Shares referred to in this sentence are herein called the "Purchase
Shares"). In addition, the Trust and the Corporation may issue to UBS-LB
additional Paired Shares in settlement of certain of its obligations under the
Forward Stock Purchase Agreement, dated October 15, 1997 (the "Forward Stock
Purchase Agreement"), among the Trust, the Corporation and UBS-LB (the
"Additional Shares"). The Purchase Shares and the Additional Shares are
hereinafter collectively called the "Shares".

                           SECTION 2. Agreement to Sell and Purchase the
Purchase Shares. Subject to the terms and conditions of this Agreement, on the
Closing Date (as defined in Section 3 hereof), the Company will sell to UBS
Limited the Purchase Shares, the number of which shall equal 2,185,000 shares
for a per share purchase price of $57.25 per share. Pursuant to the direction of
the Company, the purchase price per Paired Share shall be allocated 95% to the
Trust and 5% to the Corporation.

                           SECTION 3.  Delivery of the Shares at the Closing.

                           3.1. Closing. The completion of the purchase and sale
of the Purchase Shares (the "Closing") shall occur as soon as practicable, on
such date to be agreed upon among the Trust, the Corporation and the UBS
Parties, but in no event later than the earlier of (i) October 15, 1997 or (ii)
three business days after the execution of this Agreement (hereinafter, the
"Closing Date").

                           3.2. Conditions. At Closing, the Trust and
Corporation shall deliver or
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cause to be delivered to the UBS Limited one or more stock certificates
registered in the name of UBS Limited representing the number of Purchase Shares
set forth in Section 2 above.

                  The obligation of the Trust and the Corporation to complete
the sale of the Purchase Shares and deliver such stock certificate(s) to UBS
Limited at the Closing shall be subject to the following conditions, any one or
more of which may be waived by both the Trust and the Corporation acting
together: (i) receipt by the Company of Federal Funds (or other mutually agreed
upon form of payment) in the full amount of the purchase price for the Purchase
Shares being purchased hereunder, (ii) the accuracy in all material respects, as
of the Closing Date, of the representations and warranties made by the UBS
Parties herein and the fulfillment, in all material respects, as of the Closing
Date, of those undertakings of the UBS Parties to be fulfilled prior to the
Closing, (iii) the Forward Stock Purchase Agreement shall have been fully
executed by the parties thereto and (iv) receipt by the Company of a
cross-receipt with respect to the Purchase Shares executed by UBS Limited.

                  UBS Limited's obligation to accept delivery of such stock
certificate(s) and to pay for the Purchase Shares evidenced thereby shall be
subject to the following conditions: (i) the accuracy in all material respects,
as of the Closing Date, of the representations and warranties made by the Trust
and the Corporation herein and the fulfillment in all material respects, as of
the Closing Date, of those undertakings of the Company to be fulfilled prior to
Closing; and (ii) the UBS Parties shall have received all opinions and
certificates to be delivered pursuant to this Agreement.

                           SECTION 4. Representations, Warranties and Covenants
of the Trust. The Trust hereby represents and warrants to, and covenants with,
the UBS Parties as follows:

                           4.1. Organization and Qualification. The Trust has
been formed as a real estate investment trust under Maryland law pursuant to a
Declaration of Trust filed as of August 15, 1969 in the office of the Maryland
Secretary of State, as amended and restated as of June 6, 1988 and filed in the
office of the Maryland Secretary of State on such date, and as further amended
as of February 1, 1995. The Trust's existence has not been suspended or
terminated nor have any dissolution, revocation or forfeiture proceedings
regarding the Trust been commenced. The Trust has been duly qualified to do
business in each jurisdiction (i) wherein it owns, leases or manages real
property or (ii) where the failure so to qualify to do business would have a
material adverse effect on the financial condition, business, operations or
prospects of the Company taken as a whole (a "Material Adverse Effect").

                           4.2. Authorized Capital Stock. The Trust has
125,000,000 authorized shares as of July 31, 1997, consisting of 100,000,000
Trust Shares, par value $0.01 per share, 20,000,000 Excess Trust Shares, par
value $0.01 per share and 5,000,000 Excess Preferred Shares, par value $0.01 per
share. As of July 31, 1997, there were 45,562,851 Paired Shares outstanding and
an aggregate of 18,296,917 Paired Shares were reserved for issuance (i) upon
exercise of all outstanding warrants, options and other rights to purchase
Paired Shares, (ii) upon conversion of all outstanding debt securities and (iii)
upon exercise all exchange and conversion rights with respect to the SLC
Operating Limited Partnership and SLT Realty


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Limited Partnership and all other entities the holders of equity interests in
which have the right to exchange or convert such equity interests into Paired
Shares. No preferred shares of the Trust are currently outstanding. The issued
and outstanding Paired Shares of the Company have been duly authorized and
validly issued, are fully paid and nonassessable, have been issued in compliance
with all federal and state securities laws, were not issued in violation of or
subject to any preemptive rights or other rights to subscribe for or purchase
securities, and conform to the description thereof included in the Company's SEC
Filings (as defined below). Other than as described in the Company's SEC
Filings, the Trust does not have outstanding any options to purchase, or any
preemptive rights or other rights to subscribe for or to purchase, any
securities or obligations convertible into, or any contracts or commitments to
issue or sell, shares of its capital stock or any such options, rights,
convertible securities or obligations. The description of the Trust's stock,
stock bonus and other stock plans or arrangements and the options or other
rights granted and exercised thereunder in the Company's SEC Fillings accurately
and fairly presents the information required to be shown with respect to such
plans, arrangements, options and rights.

                           4.3. Issuance, Sale and Delivery of the Shares. The
Purchase Shares to be sold by the Company have been duly authorized and, when
issued, delivered and paid for in the manner set forth in this Agreement, will
be duly authorized, validly issued, fully paid and nonassessable, and will
conform to the description thereof included in the Company's SEC Filings or
incorporated by reference in the Registration Statement, if available. The
Additional Shares, if and when issued pursuant to the Forward Stock Purchase
Agreement, will be duly authorized, validly issued, fully paid and
nonassessable, and will conform to the description thereof included in the
Company's SEC filings or incorporated by reference in the Registration
Statement. None of the Purchase Shares when issued and delivered to the UBS
Parties shall be subject to any lien, security interest, claim, charge or
encumbrance of any nature. No further approval or authority of the shareholders
or the Board of Trustees of the Trust will be required for the issuance and/or
sale of the Purchase Shares to be sold by the Company as contemplated herein or
in the Forward Stock Purchase Agreement, except such as shall have been obtained
on or before the Closing Date. The issuance and/or sale of the Purchase Shares
to the UBS Parties by the Company pursuant to this Agreement or the Forward
Stock Purchase Agreement (as the case may be), the compliance by the Company
with the other provisions of this Agreement or the Forward Stock Purchase
Agreement and the consummation of the other transactions contemplated hereby or
thereby do not require the consent, approval, authorization, registration or
qualification of or with any governmental authority, except such as shall have
been obtained on or before the Closing Date other than the registration of the
resale of the Shares by the UBS Parties with the Securities and Exchange
Commission (the "SEC") and any required Blue Sky filings with the States. The
Company meets and will continue to meet the requirements for use of Form S-3
under the Securities Act and the rules and regulations promulgated thereunder
(the "Rules and Regulations"). The Company has filed and will file all documents
which it is required to file under the Securities Exchange Act of 1934, as
amended (the "Exchange Act") and all such documents (collectively, together with
the Company's registration statements filed under the Securities Act which have
been declared effective since January 1, 1997 and have not been withdrawn, the
"Company's SEC Filings") comply in all material respects with the requirements
of the Exchange Act and the rules and regulations thereunder, as applicable, and


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none of such documents, when so filed, contained or will contain any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading, and any documents
so filed and incorporated by reference subsequent to the effective date of the
Registration Statement (as defined in Section 8 below) shall, when they are
filed with the SEC, conform in all material respects with the requirements of
the Securities Act and the Rules and Regulations and the Exchange Act and the
rules and regulations thereunder, as applicable. No Registration Statement filed
in respect of any of the Purchase Shares or Additional Shares, when so filed,
will contain any untrue statement of a material fact required to be stated
therein or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading.

                           4.4. Due Execution, Delivery and Performance of the
Agreement. The Trust has full legal right, power and authority to enter into the
Purchase Agreement and the Forward Stock Purchase Agreement and perform the
transactions contemplated hereby and thereby. The Purchase Agreement and the
Forward Stock Purchase Agreement have been duly authorized, executed and
delivered by the Trust. The making and performance of the Purchase Agreement and
the Forward Stock Purchase Agreement by the Trust and the consummation of the
transactions herein and therein contemplated will not violate any provision of
the articles of incorporation, declaration of trust, or bylaws, or other
organizational documents, of the Trust, and will not conflict with, result in
the breach or violation of, or constitute, either by itself or upon notice or
the passage of time or both, a default under any material agreement, mortgage,
deed of trust, lease, franchise, license, indenture, permit or other instrument
to which the Trust is a party or by which the Trust or its respective properties
may be bound or affected, any statute or any authorization, judgment, decree,
order, rule or regulation of any court or any regulatory body, administrative
agency or other governmental body applicable to the Trust or any of its
respective properties. No consent, approval, authorization or other order of any
court, regulatory body, administrative agency or other governmental body is
required by or on the part of the Trust for the execution and delivery of this
Agreement, the Forward Stock Purchase Agreement or the consummation of the
transactions contemplated hereby or thereby, except in connection with the
filing of any Registration Statements pursuant to Section 8 below or for
compliance with the Blue Sky laws applicable to the offering of the Shares. Upon
the execution and delivery hereof, each of this Agreement and the Forward Stock
Purchase Agreement will constitute the valid and binding obligation of the
Trust, enforceable in accordance with its terms, except as enforceability may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium or
similar laws affecting creditors' and contracting parties' rights generally and
except as enforceability may be subject to general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law) and except as the enforceability of the indemnification
agreements of the Trust in Section 8.5 hereof may be limited by public policy.

                           4.5. Accountants. The Company's independent certified
public accountants, who have expressed their opinion with respect to the Most
Recent Financial Statements (as defined below) are independent accountants as
required by the Securities Act and the Rules and Regulations. The Company shall
cause its independent certified public


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accountants to deliver, on the effective date of Registration Statement, and
thereafter upon the request of a UBS Entity (which shall be made no more
frequently than once during any 30 day period), a letter stating that such
accountants are independent public accountants within the meaning of the
Securities Act and otherwise in customary form and covering such financial and
accounting matters as are then customarily covered by letters of independent
certified public accountants delivered in connection with secondary public
offerings of equity securities pursuant to a shelf registration statement.

                           4.6. No Defaults. Except as to defaults, violations
and breaches which individually or in the aggregate would not be material to the
Company (taken as a whole), the Trust is not in violation or default of any
provision of its declaration of trust or bylaws, or other organizational
documents, and is not in breach of or default with respect to any provision of
any agreement, judgment, decree, order, mortgage, deed of trust, lease,
franchise, license, indenture, permit or other instrument to which it is a party
or by which it or any of its properties are bound; and there does not exist any
state of fact which constitutes an event of default on the part of the Trust as
defined in such documents or which, with notice or lapse of time or both, would
constitute such an event of default except such defaults which individually or
in the aggregate would not be material to the Company.

                           4.7. Contracts. Neither the Trust, nor to the best of
the Trust's knowledge, any other party is in breach of or default under any
contracts to which the Trust is a party except such breach or default which
individually or in the aggregate would not have a Material Adverse Effect.

                           4.8. No Actions. There are no legal or governmental
actions, suits or proceedings pending or, to the best of the Trust's knowledge,
threatened to which the Trust is or may be a part or of which property owned or
leased by the Trust is or may be the subject, or related to environmental or
discrimination matters, which actions, suits or proceedings might, individually
or in the aggregate, prevent or adversely affect the transactions contemplated
by this Agreement or result in a material adverse change in the condition
(financial or otherwise), of the properties, business, results of operations or
prospects of the Company, and no labor disturbance by the employees of the Trust
exists or is imminent which might be expected to affect adversely such
condition, properties, business, results of operations or prospects. Except as
may be described in the Company's SEC Filings, the Trust is not a party nor
subject to the provisions of any material injunction, judgment, decree or order
of any court, regulatory body administrative agency or other governmental body.

                           4.9. Properties. The Trust has good and marketable
title to all the properties and assets reflected as owned by the Company in the
financial statements included in the Most Recent Financial Statements, subject
to no lien, mortgage, pledge, charge or encumbrance of any kind except (i)
those, if any, reflected in such financial statements or the Company's SEC
Filings, or (ii) those which are not material in amount and do not adversely
affect the use made and promised to be made of such property by the Trust. The
Trust holds its leased properties under valid and binding leases, with such
exceptions as are not materially significant in relation to the business of the
Trust and the Corporation. The Trust owns or leases


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all such properties as are necessary to its operations as now conducted. The
Trust qualified as a real estate investment trust under the Internal Revenue
Code of 1986, as amended, with respect to its taxable years ended December 31,
1995 and December 31, 1996, and is organized in conformity with the requirements
for qualification as a real estate investment trust, and its manner of operation
has enabled it to meet the requirements for qualification as a real estate
investment trust as of the date hereof, and its proposed manner of operation
will enable it to meet the requirements for qualification as a real estate
investment trust in the future.

                           4.10. No Material Change. Since the date of the Most
Recent Financial Statements, and except as otherwise disclosed in the Company's
SEC Filings as of the Closing Date or in writing to the UBS Parties the Trust
(i) has not incurred any liabilities or obligations, indirect, or contingent,
which will have a Material Adverse Effect or entered into any material verbal or
written agreement or other material transaction which is not in the ordinary
course of business (it being agreed that for purposes of this sentence the
Trust's ordinary course of business shall include the acquisition or
disposition, directly indirectly, of real estate properties or businesses of a
type that may be owned by a "real estate investment trust" (as defined under the
Internal Revenue Code)) or which could reasonably be expected to result in a
material reduction in the future earnings of the Company; (ii) the Trust has not
sustained any loss or interference with its businesses or properties (taken as a
whole) from fire, flood, windstorm, accident or other calamity, whether or not
covered by insurance, which has had a material adverse effect on such business
or properties; (iii) the Trust is not in default in the payment of principal or
interest on any outstanding debt obligations; (iv) there has not been any change
in the authorized capital of the Trust or material increase in the principal
amount of outstanding indebtedness of the Trust (other than in the ordinary
course of business); and (v) there has not been any material adverse change in
the condition (financial or otherwise), business, properties, results of
operations or prospects of the Company.

                           4.11. Intellectual Property. The Trust believes it
has sufficient trademarks, trade names, patent rights, copyrights, licenses,
approvals and governmental authorizations to conduct its businesses as now
conducted; and the Trust does not have knowledge of any material infringement by
it of trademark, trade name rights, patent rights, copyrights, licenses, trade
secrets or other similar rights of others, and no claim has been made against
the Trust regarding trademark, trade name, patent, copyright, license, trade
secrecy or other infringement which could have a material adverse effect on the
condition (financial or otherwise), business, results of operations or prospects
of the Company.

                           4.12. Compliance. The Trust has not been advised, and
has no reason to believe, that it is not conducting business in compliance with
all applicable laws, rules and regulations of the jurisdictions in which it is
conducting business, including, without limitation, all applicable local, state
and federal environmental laws and regulations; except where failure to be so in
compliance would not materially adversely affect the condition (financial or
otherwise), business, results of operations or prospects of the Company.

                           4.13. Taxes. The Trust has filed all necessary
federal, state and foreign income and franchise tax returns and has paid or
accrued all taxes shown as due thereon (except


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for those taxes which are being contested in good faith through appropriate
proceedings, for which adequate reserves have been established and which are
either reflected in the Most Recent Financial Statements or disclosed by the
Company to UBS in writing), and the Trust has no knowledge of any tax deficiency
which has been or might be asserted or threatened against the Trust which could
materially adversely affect the business condition (financial or otherwise),
results of operations or prospects of the Company.

                           4.14. Transfer Taxes. On the Closing Date, all stock
transfer or other taxes (other than income taxes) which are required to be paid
in connection with the sale and transfer of the Purchase Shares to be sold to
UBS Limited hereunder will be, or will have been, fully paid or provided for by
the Company and all laws imposing such taxes will be or will have been fully
complied with.

                           4.15. Investment Company. The Trust is not required
to register as an "investment company" as such term is defined in the Investment
Company Act of 1940, as amended.

                           4.16. Offering Materials. The Trust has not
distributed nor will distribute prior to the Closing Date any offering material
in connection with the offering and sale of the Purchase Shares other than the
documents provided to the UBS Parties pursuant to Section 4.18.

                           4.17. Insurance. The Company maintains insurance (or
insurance is maintained on its behalf) of the types and in the amounts generally
deemed adequate under customary industry standards for its business, including,
but not limited to, insurance covering all real and personal property owned or
leased by the Company against theft, damage, destruction, acts of vandalism and
all other risks customarily insured against, all of which insurance is in full
force and effect.

                           4.18. SEC Filings. The information contained in the
following documents, which the Company has furnished to the UBS Parties, or will
furnish prior to the Closing, is or will be true and correct in all material
respects as of their respective filing dates:

                  (a)      Joint Annual Report on Form 10-K/A for the year ended
                           December 31, 1996, which Joint Annual Report includes
                           the Trust's and the Corporation's most recently
                           available audited financial statements together with
                           the report thereon of the independent certified
                           public accountants (the "Most Recent Financial
                           Statements");

                  (b)      Joint Quarterly Report on Form 10-Q for the quarters
                           ended March 31, 1997 and June 30, 1997;

                  (c)      the Company's joint proxy statements on Form 14A
                           relating to (i) the most recent Annual Meeting of the
                           Corporation's and the Trust's Shareholders and (ii)
                           any Special Meetings of the Corporation's


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                           Shareholders and the Trust's Shareholders which
                           occurred during the 12-month period prior to the date
                           hereof or for which a meeting date has been fixed and
                           a proxy statement distributed;

                  (d)      Prospectus dated March 21, 1997 and Supplement
                           thereto dated March 27, 1997 and Prospectus dated
                           September 29, 1997 and Supplement thereto dated
                           September 29, 1997;

                  (e)      all other documents, if any, filed by or with respect
                           to the Trust and the Corporation with the SEC since
                           January 1, 1997 pursuant to Sections 13, 15(d) or
                           16(a) of the Exchange Act; and

                  (f)      a covenant compliance certification stating that the
                           Trust and the Corporation and their respective
                           subsidiaries are not in default under any of its
                           credit agreements or other financing arrangements.

                           4.19. Legal Opinion. Prior to the Closing, counsel to
the Company will deliver their legal opinions to the UBS Parties in
substantially the forms of Exhibits A-1 and A-2 hereto.

                           4.20. ERISA. The Company and its affiliates are in
compliance in all material respects with all applicable provisions of the
Employee Retirement Income Security Act of 1974, as amended and the rules and
regulations promulgated thereunder ("ERISA"). Neither a Reportable Event (as
defined under ERISA) nor a Prohibited Transaction (as defined under ERISA) has
occurred with respect to any Plan (as defined below) of the Company and/or its
affiliates; no notice of intent to terminate a Plan has been filed nor has any
Plan been terminated within the past five years; no circumstance exists which
constitutes grounds under Section 402 of ERISA entitling the Pension Benefit
Guaranty Corporation ("PBGC") to institute proceedings to terminate, or appoint
a trustee to administer, a Plan, nor has the PBGC instituted any such
proceedings; the Company and its affiliates have not completely or partially
withdrawn under Sections 4201 or 4202 of ERISA from any Multiemployer Plan (as
defined therein); the Company and its affiliates have met the minimum funding
requirements of Section 412 of the Internal Revenue Code of 1986, as amended
(the "Code") and Section 302 of ERISA with respect to each Plan and there is no
unfunded current liability (as defined below) with respect to any Plan; the
Company and its affiliates have not incurred any liability to the PBGC under
ERISA (other than for the payment of premiums under Section 4007 of ERISA); no
part of the funds to be used by the Company in satisfaction of its obligations
under this Purchase Agreement or the Forward Stock Purchase Agreement constitute
"plan assets" of any "employee benefit plan" within the meaning of ERISA or of
any "plan" within the meaning of Section 4975(e)(1) of the Code, as interpreted
by the Internal Revenue Service and the U.S. Department of Labor in rules,
regulations, releases and bulletins or as interpreted under applicable case law.
As used below, "Plan" means an "employee benefit plan" or "plan" as described in
Section 3(3) of ERISA; and "unfunded current liability" has the meaning provided
in Section 302(d)(8)(A) of ERISA.


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                           4.21. Certificate. A certificate of the Trust
executed by the chief executive, financial or accounting officer of the Trust,
to be dated the Closing Date in form and substance satisfactory to the UBS
Parties to the effect that the representations and warranties of the Trust set
forth in this Section 4 are true and correct as of the date of this Agreement
and as of the Closing Date, and the Trust has complied with all the agreements
and satisfied all the conditions on its part to be performed or satisfied on or
prior to such Closing Date.

                           4.22. Environmental Protection. To the Trust's
knowledge, except as disclosed in the Company's SEC Filings, none of the Trust's
or its affiliates' properties contain any Hazardous Materials that, under any
Environmental Law, (i) would impose liability on the Trust or any affiliate that
is likely to have a material adverse effect on the condition (financial or
other), business, results of operations, or prospects, of the Company or (ii) is
likely to result in the imposition of a lien on any material asset owned,
directly or indirectly, by the Company. To the Trust's knowledge, neither it nor
any affiliate is subject to any existing, pending or threatened investigation or
proceeding by any governmental agency or authority with respect or pursuant to
any Environmental Law, except any which, if adversely determined, would not have
a material adverse effect on the condition (financial or other), business,
results of operations or prospects of the Company. As used herein,
"Environmental Laws" mean all federal, state, local and foreign environmental,
health and safety laws, codes and ordinances and all rules and regulations
promulgated thereunder, including, without limitation laws relating to
emissions, discharges, releases or threatened releases of pollutants,
contaminants, chemicals, or industrial, toxic or hazardous substances or wastes
into the environment (including, without limitation, air, surface water, ground
water, land surface or subsurface strata) or otherwise relating to the
manufacture, processing, distribution, use, treatment, storage, disposal,
transport or handling of pollutants, contaminants, chemicals, or industrial,
solid, toxic or hazardous substances or wastes; and "Hazardous Material"
includes, without limitation, (i) all substances which are designated pursuant
to Section 311(b)(2)(A) of the Federal Water Pollution Control Act ("FWPCA"), 33
U.S.C "1251 et seq.; (ii) any element, compound, mixture, solution, or substance
which is designated pursuant to Section 102 of the Comprehensive Environmental
Response, Compensation and Liability Act ("CERCLA"), 42 U.S.C. "9601 et seq.;
(iii) any hazardous waste having the characteristics which are identified under
or listed pursuant to Section 3001 of the Resource Conservation and Recovery Act
("RCRA"), 42 U.S.C. "6901 et seq.; (iv) any toxic pollutant listed under Section
307(a) of the FWPCA; (v) any hazardous air pollutant which is listed under
Section 112 of the Clean Air Act, 42 U.S.C. "7401 et seq.; (vi) any imminently
hazardous chemical substance or mixture with respect to which action has been
taken pursuant to Section 7 of the Toxic Substances Control Act, 15 U.S.C. "2601
et seq.; and (vii) petroleum, petroleum products, petroleum by-products,
petroleum decomposition by-products, and waste oil.

                           SECTION 5. Representations, Warranties and Covenants
of the Corporation. The Corporation hereby represents and warrants to, and
covenants with, the UBS Parties as follows:

                           5.1. Organization and Qualification. The Corporation
has been duly organized, is validly existing and in good standing under the laws
of Mary land. The


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Corporation's corporate existence has not been suspended or
terminated, nor have any dissolution, liquidation or forfeiture proceedings
involving the Corporation been commenced. The Corporation has been duly
qualified to do business in each jurisdiction (i) wherein such entity owns,
leases or manages real property or (ii) where the failure so to qualify to do
business would have a Material Adverse Effect.

                           5.2. Authorized Capital Stock. The Corporation has
authorized capital stock as of July 31, 1997 of 135,000,000 shares, consisting
of 100,000,000 shares of common stock, par value $0.01 per share, 10,000,000
shares of preferred stock, par value $0.01 per share, 20,000,000 shares of
excess common stock, par value $0.01 per share and 5,000,000 shares of excess
preferred stock, par value $0.01 per share. As of July 31, 1997, there were
45,562,851 Paired Shares outstanding and an aggregate of 18,296,917 Paired
Shares were reserved for issuance (i) upon exercise of all outstanding warrants,
options and other rights to purchase Paired Shares, (ii) upon conversion of all
outstanding debt securities and (iii) upon exercise all exchange and conversion
rights with respect to the SLC Operating Limited Partnership and SLT Realty
Limited Partnership and all other entities the holders of equity interests in
which have the right to exchange or convert such equity interests into Paired
Shares. No preferred shares of the Corporation are currently outstanding. The
issued and outstanding Paired Shares of the Company have been duly authorized
and validly issued, are fully paid and nonassessable, have been issued in
compliance with all federal and state securities laws, were not issued in
violation of or subject to any preemptive rights or other rights to subscribe
for or purchase securities, and conform to the description thereof included in
the Company's SEC Filings. Other than as described in the Company's SEC Filings,
the Corporation does not have outstanding any options to purchase, or any
preemptive rights or other rights to subscribe for or to purchase, any
securities or obligations convertible into, or any contracts or commitments to
issue or sell, shares of its capital stock or any such options, rights,
convertible securities or obligations. The description of the Corporation's
stock, stock bonus and other stock plans or arrangements and the options or
other rights granted and exercised thereunder in the Company's SEC Fillings
accurately and fairly presents the information required to be shown with respect
to such plans, arrangements, options and rights.

                           5.3. Issuance, Sale and Delivery of the Shares. The
Purchase Shares to be sold by the Company have been duly authorized and, when
issued, delivered and paid for in the manner set forth in this Agreement, will
be duly authorized, validly issued, fully paid and nonassessable, and will
conform to the description thereof included in the Company's SEC Filings or
incorporated by reference in the Registration Statement, if available. The
Additional Shares, if and when issued pursuant to the Forward Stock Purchase
Agreement, will be duly authorized, validly issued, fully paid and
nonassessable, and will conform to the description thereof included in the
Company's SEC filings or incorporated by reference in the Registration
Statement. None of the Purchase Shares when issued and delivered to the UBS
Parties shall be subject to any lien, security interest, claim, charge or
encumbrance of any nature. No further approval or authority of the shareholders
or the Board of Directors of the Corporation will be required for the issuance
and/or sale of the Purchase Shares to be sold by the Company as contemplated
herein or in the Forward Stock Purchase Agreement, except such as shall have
been obtained on or before the Closing Date. The issuance and/or sale of the
Purchase Shares to


                                       10
<PAGE>   11
the UBS Parties by the Company pursuant to this Agreement or the Forward Stock
Purchase Agreement (as the case may be), the compliance by the Company with the
other provisions of this Agreement or the Forward Stock Purchase Agreement and
the consummation of the other transactions contemplated hereby or thereby do not
require the consent, approval, authorization, registration or qualification of
or with any governmental authority, except such as shall have been obtained on
or before the Closing Date other than the registration of the resale of the
Shares by the UBS Parties with the Securities and Exchange Commission (the
"SEC") and any required Blue Sky filings with the States. The Company meets and
will continue to meet the requirements for use of Form S-3 under the Securities
Act and the rules and regulations promulgated thereunder (the "Rules and
Regulations"). The Company has filed and will file all documents which it is
required to file under the Exchange Act and all such documents comply in all
material respects with the requirements of the Exchange Act and the rules and
regulations thereunder, as applicable, and none of such documents, when so
filed, contained or will contain any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading, and any documents so filed and incorporated by
reference subsequent to the effective date of the Registration Statement (as
defined in Section 8 below) shall, when they are filed with the SEC, conform in
all material respects with the requirements of the Securities Act and the Rules
and Regulations and the Exchange Act and the rules and regulations thereunder,
as applicable. No Registration Statement filed in respect of any of the Purchase
Shares or Additional Shares, when so filed, will contain any untrue statement of
a material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made,
not misleading.

                           5.4. Due Execution, Delivery and Performance of the
Agreement. The Corporation has full legal right, power and authority to enter
into the Purchase Agreement and the Forward Stock Purchase Agreement and perform
the transactions contemplated hereby and thereby. The Purchase Agreement and the
Forward Stock Purchase Agreement have been duly authorized, executed and
delivered by the Corporation. The making and performance of the Purchase
Agreement and the Forward Stock Purchase Agreement by the Corporation and the
consummation of the transactions herein and therein contemplated will not
violate any provision of the articles of incorporation, or bylaws, or other
organizational documents, of the Corporation, and will not conflict with, result
in the breach or violation of, or constitute, either by itself or upon notice or
the passage of time or both, a default under any material agreement, mortgage,
deed of trust, lease, franchise, license, indenture, permit or other instrument
to which the Corporation is a party or by which the Corporation or its
respective properties may be bound or affected, any statute or any
authorization, judgment, decree, order, rule or regulation of any court or any
regulatory body, administrative agency or other governmental body applicable to
the Corporation or any of its respective properties. No consent, approval,
authorization or other order of any court, regulatory body, administrative
agency or other governmental body is required by or on behalf of the Corporation
for the execution and delivery of this Agreement, the Forward Stock Purchase
Agreement or the consummation of the transactions contemplated hereby or
thereby, except in connection with the filing of any Registration Statements
pursuant to Section 8 below or for compliance with the Blue Sky laws applicable
to the offering of the Shares. Upon the execution and delivery hereof, each of
this Agreement and the Forward Stock


                                       11
<PAGE>   12
Purchase Agreement will constitute the valid and binding obligation of the
Corporation, enforceable in accordance with its terms, except as enforceability
may be limited by applicable bankruptcy, insolvency, reorganization, moratorium
or similar laws affecting creditors' and contracting parties' rights generally
and except as enforceability may be subject to general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law) and except as the enforceability of the indemnification
agreements of the Corporation in Section 8.5 hereof may be limited by public
policy.

                           5.5. Accountants. The Company's independent certified
public accountants, who have expressed their opinion with respect to the Most
Recent Financial Statements (as defined below) are independent accountants as
required by the Securities Act and the Rules and Regulations. The Company shall
cause its independent certified public accountants to deliver, on the effective
date of Registration Statement, and thereafter upon the request of a UBS Entity
(which shall be made no more frequently than once during any 30 day period), a
letter stating that such accountants are independent public accountants within
the meaning of the Securities Act and otherwise in customary form and covering
such financial and accounting matters as are then customarily covered by letters
of independent certified public accountants delivered in connection with
secondary public offerings of equity securities pursuant to a shelf registration
statement.

                           5.6. No Defaults. Except as to defaults, violations
and breaches which individually or in the aggregate would not be material to the
Company (taken as a whole), the Corporation is not in violation or default of
any provision of its articles of incorporation, or bylaws, or other
organizational documents, or is in breach of or default with respect to any
provision of any agreement, judgment, decree, order, mortgage, deed of trust,
lease, franchise, license, indenture, permit or other instrument to which it is
a party or by which it or any of its properties are bound; and there does not
exist any state of fact which constitutes an event of default on the part of the
Corporation as defined in such documents or which, with notice or lapse of time
or both, would constitute such an event of default except such defaults which
individually or in the aggregate would not be material to the Company.

                           5.7. Contracts. Neither the Corporation, nor to the
best of the Corporation's knowledge, any other party is in breach of or default
under any contracts to which the Corporation is a party except such breach or
default which individually or in the aggregate would not have a Material Adverse
Effect.

                           5.8. No Actions. There are no legal or governmental
actions, suits or proceedings pending or, to the best of the Corporation's
knowledge, threatened to which the Corporation is or may be a part or of which
property owned or leased by the Corporation is or may be the subject, or related
to environmental or discrimination matters, which actions, suits or proceedings
might, individually or in the aggregate, prevent or adversely affect the
transactions contemplated by this Agreement or result in a material adverse
change in the condition (financial or otherwise), of the properties, business,
results of operations or prospects of the Company, and no labor disturbance by
the employees of the Corporation exists or is imminent which might be expected
to affect adversely such condition, properties, business, results of


                                       12
<PAGE>   13
operations or prospects. Except as may be described in the Company's SEC
Filings, the Corporation is not a party nor subject to the provisions of any
material injunction, judgment, decree or order of any court, regulatory body
administrative agency or other governmental body.

                           5.9. Properties. The Corporation has good and
marketable title to all the properties and assets reflected as owned by the
Corporation in the financial statements included in the Most Recent Financial
Statements, subject to no lien, mortgage, pledge, charge or encumbrance of any
kind except (i) those, if any, reflected in such financial statements or the
Company's SEC Filings, or (ii) those which are not material in amount and do not
adversely affect the use made and promised to be made of such property by the
Corporation. The Corporation holds its leased properties under valid and binding
leases, with such exceptions as are not materially significant in relation to
the business of the Corporation. The Corporation owns or leases all such
properties as are necessary to its operations as now conducted.

                           5.10. No Material Change. Since the date of the Most
Recent Financial Statements, and except as otherwise disclosed in the Company's
SEC Filings as of the Closing Date or in writing to the UBS Parties the
Corporation (i) has not incurred any liabilities or obligations, indirect, or
contingent, which will have a Material Adverse Effect or entered into any
material verbal or written agreement or other material transaction which is not
in the ordinary course of business (it being agreed that for purposes of this
sentence the Corporation's ordinary course of business shall include the
acquisition or disposition, directly or indirectly of assets or business related
to or engaged in the lodging industry) or which could reasonably be expected to
result in a material reduction in the future earnings of the Company; (ii) the
Corporation has not sustained any loss or interference with its businesses or
properties (taken as a whole) from fire, flood, windstorm, accident or other
calamity, whether or not covered by insurance, which has had a material adverse
effect on such business or properties; (iii) the Corporation is not in default
in the payment of principal or interest on any outstanding debt obligations;
(iv) there has not been any change in the authorized capital of the Corporation
or material increase in the principal amount of outstanding indebtedness of the
Corporation (other than in the ordinary course of business); and (v) there has
not been any material adverse change in the condition (financial or otherwise),
business, properties, results of operations or prospects of the Company.

                           5.11. Intellectual Property. The Corporation believes
it has sufficient trademarks, trade names, patent rights, copyrights, licenses,
approvals and governmental authorizations to conduct its businesses as now
conducted; and the Corporation does not have knowledge of any material
infringement by it of trademark, trade name rights, patent rights, copyrights,
licenses, trade secrets or other similar rights of others, and no claim has been
made against the Corporation regarding trademark, trade name, patent, copyright,
license, trade secrecy or other infringement which could have a material adverse
effect on the condition (financial or otherwise), business, results of
operations or prospects of the Company.

                           5.12. Compliance. The Corporation has not been
advised, and has any reason to believe, that it is not conducting business in
compliance with all applicable laws, rules and regulations of the jurisdictions
in which it is conducting business, including, without


                                       13
<PAGE>   14
limitation, all applicable local, state and federal environmental laws and
regulations; except where failure to be so in compliance would not materially
adversely affect the condition (financial or otherwise), business, results of
operations or prospects of the Company.

                           5.13. Taxes. The Corporation has filed all necessary
federal, state and foreign income and franchise tax returns and has paid or
accrued all taxes shown as due thereon (except for those taxes which are being
contested in good faith through appropriate proceedings, for which adequate
reserves have been established and which are either reflected in the Most Recent
Financial Statements or disclosed by the Company to UBS in writing), and the
Corporation has no knowledge of any tax deficiency which has been or might be
asserted or threatened against the Corporation which could materially adversely
affect the business condition (financial or otherwise), results of operations or
prospects of the Company.

                           5.14. Transfer Taxes. On the Closing Date, all stock
transfer or other taxes (other than income taxes) which are required to be paid
in connection with the sale and transfer of the Purchase Shares to be sold to
UBS Limited hereunder will be, or will have been, fully paid or provided for by
the Company and all laws imposing such taxes will be or will have been fully
complied with.

                           5.15. Investment Company. The Corporation is not
required to register as an "investment company" as such term is defined in the
Investment Company Act of 1940, as amended.

                           5.16. Offering Materials. Neither the Trust nor the
Corporation has distributed nor will distribute prior to the Closing Date any
offering material in connection with the offering and sale of the Purchase
Shares other than the documents provided to the UBS Parties pursuant to Section
5.18.

                           5.17. Insurance. The Company maintains insurance (or
insurance is maintained on its behalf) of the types and in the amounts generally
deemed adequate under customary industry standards for its business, including,
but not limited to, insurance covering all real and personal property owned or
leased by either the Company against theft, damage, destruction, acts of
vandalism and all other risks customarily insured against, all of which
insurance is in full force and effect.

                           5.18. SEC Filings. The information contained in the
following documents, which the Company has furnished to the UBS Parties, or will
furnish prior to the Closing, is or will be true and correct in all material
respects as of their respective filing dates:

                  (a)      Joint Annual Report on Form 10-K/A for the year ended
                           December 31, 1996, which Joint Annual Report includes
                           the Trust's and the Corporation's most recently
                           available audited financial statements together with
                           the report thereon of the independent certified
                           public accountants (the "Most Recent Financial
                           Statements");


                                       14
<PAGE>   15
                  (b)      Joint Quarterly Report on Form 10-Q for the quarters
                           ended March 31, 1997 and June 30, 1997;

                  (c)      the Company's joint proxy statements on Form 14A
                           relating to (i) the most recent Annual Meeting of the
                           Corporation's and the Trust's Shareholders and (ii)
                           any Special Meetings of the Corporation's
                           Shareholders and the Trust's Shareholders which
                           occurred during the 12-month period prior to the date
                           hereof or for which a meeting date has been fixed and
                           a proxy statement distributed;

                  (d)      Prospectus dated March 21, 1997 and Supplement
                           thereto dated March 27, 1997 and Prospectus dated
                           September 29, 1997 and Supplement thereto dated
                           September 29, 1997;

                  (e)      all other documents, if any, filed by or with respect
                           to the Trust and the Corporation with the SEC since
                           January 1, 1997 pursuant to Sections 13, 15(d) or
                           16(a) of the Exchange Act; and

                  (f)      a covenant compliance certification stating that the
                           Trust and the Corporation and its subsidiaries are
                           not in default under any of its credit agreements or
                           other financing arrangements.

                           5.19. Legal Opinion. Prior to the Closing, counsel to
the Company will deliver their legal opinions to the UBS Parties in
substantially the forms of Exhibits A-1 and A-2 hereto.

                           5.20. ERISA. The Company and its affiliates are in
compliance in all material respects with all applicable provisions of the
Employee Retirement Income Security Act of 1974, as amended and the rules and
regulations promulgated thereunder ("ERISA"). Neither a Reportable Event (as
defined under ERISA) nor a Prohibited Transaction (as defined under ERISA) has
occurred with respect to any Plan (as defined below) of the Company and/or its
affiliates; no notice of intent to terminate a Plan has been filed nor has any
Plan been terminated within the past five years; no circumstance exists which
constitutes grounds under Section 402 of ERISA entitling the Pension Benefit
Guaranty Corporation ("PBGC") to institute proceedings to terminate, or appoint
a trustee to administer, a Plan, nor has the PBGC instituted any such
proceedings; the Company and its affiliates have not completely or partially
withdrawn under Sections 4201 or 4202 of ERISA from any Multiemployer Plan (as
defined therein); the Company and its affiliates have met the minimum funding
requirements of Section 412 of the Internal Revenue Code of 1986, as amended
(the "Code") and Section 302 of ERISA with respect to each Plan and there is no
unfunded current liability (as defined below) with respect to any Plan; the
Company and its affiliates have not incurred any liability to the PBGC under
ERISA (other than for the payment of premiums under Section 4007 of ERISA); no
part of the funds to be used by the Company in satisfaction of its obligations
under this Purchase Agreement or the Forward Stock Purchase Agreement constitute
"plan assets" of any "employee benefit plan" within the meaning of ERISA or of
any "plan" within the meaning of Section


                                       15
<PAGE>   16
4975(e)(1) of the Code, as interpreted by the Internal Revenue Service and the
U.S. Department of Labor in rules, regulations, releases and bulletins or as
interpreted under applicable case law. As used below, "Plan" means an "employee
benefit plan" or "plan" as described in Section 3(3) of ERISA; and "unfunded
current liability" has the meaning provided in Section 302(d)(8)(A) of ERISA.

                           5.21. Certificate. A certificate of the Corporation
executed by the chief executive, financial or accounting officer of the
Corporation, to be dated the Closing Date in form and substance satisfactory to
the UBS Parties to the effect that the representations and warranties of the
Corporation set forth in this Section 5 are true and correct as of the date of
this Agreement and as of the Closing Date, and the Corporation has complied with
all the agreements and satisfied all the conditions on its part to be performed
or satisfied on or prior to such Closing Date.

                           5.22. Environmental Protection. To the Corporation's
knowledge, except as disclosed in the Company's SEC Filings, none of the
Corporation's or its affiliates' properties contain any Hazardous Materials
that, under any Environmental Law, (i) would impose liability on either the
Corporation or any affiliate that is likely to have a material adverse effect on
the condition (financial or other), business, results of operations, or
prospects, of the Company or (ii) is likely to result in the imposition of a
lien on any assets owned, directly or indirectly, by either the Company. To the
Corporation's knowledge, neither it nor any affiliate is subject to any
existing, pending or threatened investigation or proceeding by any governmental
agency or authority with respect or pursuant to any Environmental Law, except
any which, if adversely determined, would not have a material adverse effect on
the condition (financial or other), business, results of operations or prospects
of the Company. As used herein, "Environmental Laws" mean all federal, state,
local and foreign environmental, health and safety laws, codes and ordinances
and all rules and regulations promulgated thereunder, including, without
limitation laws relating to emissions, discharges, releases or threatened
releases of pollutants, contaminants, chemicals, or industrial, toxic or
hazardous substances or wastes into the environment (including, without
limitation, air, surface water, ground water, land surface or subsurface strata)
or otherwise relating to the manufacture, processing, distribution, use,
treatment, storage, disposal, transport or handling of pollutants, contaminants,
chemicals, or industrial, solid, toxic or hazardous substances or wastes; and
"Hazardous Material" includes, without limitation, (i) all substances which are
designated pursuant to Section 311(b)(2)(A) of the Federal Water Pollution
Control Act ("FWPCA"), 33 U.S.C "1251 et seq.; (ii) any element, compound,
mixture, solution, or substance which is designated pursuant to Section 102 of
the Comprehensive Environmental Response, Compensation and Liability Act
("CERCLA"), 42 U.S.C. "9601 et seq.; (iii) any hazardous waste having the
characteristics which are identified under or listed pursuant to Section 3001 of
the Resource Conservation and Recovery Act ("RCRA"), 42 U.S.C. "6901 et seq.;
(iv) any toxic pollutant listed under Section 307(a) of the FWPCA; (v) any
hazardous air pollutant which is listed under Section 112 of the Clean Air Act,
42 U.S.C. "7401 et seq.; (vi) any imminently hazardous chemical substance or
mixture with respect to which action has been taken pursuant to Section 7 of the
Toxic Substances Control Act, 15 U.S.C. "2601 et seq.; and (vii) petroleum,
petroleum products, petroleum by-products, petroleum decomposition by-products,
and waste oil.


                                       16
<PAGE>   17
                           SECTION 6. Representations, Warranties and Covenants
of the UBS Parties.

                           6.1. Investment. UBS Limited and/or UBS-LB represents
and warrants to, and covenants with, the Company that: (i) UBS Limited, taking
into account the personnel and resources it can practically bring to bear on the
purchase of the Purchase Shares contemplated hereby, is knowledgeable,
sophisticated and experienced in making, and is qualified to make, decisions
with respect to investments in shares presenting an investment decision like
that involved in the purchase of the Purchase Shares, including investments in
securities issued by the Company, and has requested, received, reviewed and
considered all information it deems relevant in making an informed decision to
purchase the Purchase Shares; (ii) UBS Limited is acquiring the number of
Purchase Shares set forth in Section 2 above in the ordinary course of its
business and for its own account for investment (as defined for purposes of the
Hart-Scott-Rodino Antitrust Improvements Act of 1976 and the regulations
thereunder) only and with no present intention of distributing any of such
Purchase Shares or any arrangement or understanding with any other persons
regarding the distribution of such Shares (this representation and warranty not
limiting the rights of either UBS Party to sell pursuant to any Registration
Statement); (iii) neither UBS Party will, directly or indirectly, sell or
otherwise dispose of (or solicit any offers to purchase or otherwise acquire)
any of the Shares except in compliance with the Securities Act, the Rules and
Regulations and any applicable state securities or blue sky laws or pursuant to
an available exemption or exclusion therefrom; (iv) each UBS Party has completed
or caused to be completed the Registration Statement Questionnaire and the Stock
Certificate Questionnaire, both attached hereto as Appendix I, for use in
preparation of the Registration Statement and the answers thereto are true and
correct to the best knowledge of the UBS Parties as of the date hereof and will
be true and correct as of the effective date of the Registration Statement; (v)
the UBS Parties have, in connection with their decision to purchase the number
of Purchase Shares set forth in Section 2 above, relied solely upon the
documents identified in Sections 4.18 and 5.18, the information referred to in
Section 8.7 and the representations and warranties of the Company contained
herein; (vi) each of the UBS Parties is an "accredited investor" within the
meaning of Rule 501 of Regulation D promulgated under the Securities Act and a
"qualified institutional buyer" within the meaning of Rule 144A promulgated
under the Securities Act; (vii) the UBS Parties do not directly or indirectly
have an interest of five percent or more of the Common Shares outstanding as
shown in the Company's Quarterly Report on Form 10-Q for the quarter ended June
30, 1997 and (viii) the Purchaser understands that the Shares will contain a
legend to the following effect:

                  THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
                  REGISTERED UNDER THE SECURITIES ACT OF 1933. THE SHARES HAVE
                  BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED
                  OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
                  STATEMENT FOR THESE SHARES UNDER THE SECURITIES ACT OF 1933 OR
                  AN OPINION OF THE COMPANY'S COUNSEL THAT REGISTRATION IS NOT


                                       17
<PAGE>   18
                  REQUIRED UNDER SAID ACT.

                           6.2. Resale. Each UBS Party acknowledges and agrees
that the Shares are not transferable on the books of either the Trust or the
Corporation unless the certificate submitted to the transfer agent evidencing
the Shares is accompanied by a separate officer's certificate: (i) in the form
of Appendix II hereto, (ii) executed by an officer of, or other authorized
person designated by, the UBS Parties, and (iii) to the effect that (A) the
Shares have been sold in accordance with the Registration Statement, the
Securities Act and the Rules and Regulations and any applicable state securities
or blue sky laws or pursuant to valid exemptions or exclusions therefrom and (B)
the requirement under the Securities Act of delivering a current prospectus has
been satisfied. Each UBS Party acknowledges that there may occasionally be times
when the Company must suspend the right of the UBS Parties to effect sales of
the Shares through use of the Prospectus forming a part of the Registration
Statement until such time as an amendment to the Registration Statement has been
filed by the Company and declared effective by the SEC, or until such time as
the Company has filed an appropriate report with the SEC pursuant to the
Exchange Act (each, a "Black-out Period"); provided that no Black-out Period
shall exceed 90 consecutive days. Each UBS Party hereby covenants that it will
not sell any Shares pursuant to said Prospectus during the period commencing at
the time at which the Company gives the UBS Parties written notice of the
suspension of the use of said Prospectus and ending at the time the Company
gives the UBS Parties written notice that the UBS Parties may thereafter effect
sales pursuant to said Prospectus. Each UBS Party further covenants to notify
the Trust and the Corporation promptly of the sale of all of its Shares.

                           6.3. Due Execution, Delivery and Performance of this
Agreement. The UBS Parties further represent and warrant to, and covenant with,
the Company that (i) each UBS Party has full right, power, authority and
capacity to enter into this Agreement and to consummate the transactions
contemplated hereby and has taken all necessary action to authorize the
execution, delivery and performance of this Agreement, and (ii) upon the
execution and delivery of this Agreement, this Agreement shall constitute a
valid and binding obligation of the UBS Parties enforceable in accordance with
its terms, except as enforceability may be limited by applicable bankruptcy,
insolvency, reorganization, moratorium or similar laws affecting creditors' and
contracting parties' rights generally and except as enforceability may be
subject to general principles of equity (regardless of whether such
enforceability is considered in a proceeding in equity or at law) and except as
the indemnification agreements of the UBS Parties in Section 8.5 hereof may be
legally unenforceable.

                           6.4. Residence of UBS Limited. UBS Limited is
organized under the laws of England and has its principal place of business in
London.

                           SECTION 7. Survival of Representations, Warranties
and Agreements. Notwithstanding any investigation made by any party to this
Purchase Agreement, all covenants, agreements, representations and warranties
made by the Trust, the Corporation and the UBS Parties herein and in the
certificates for the Shares delivered pursuant hereto shall survive the
execution of this Purchase Agreement, the Forward Stock Purchase Agreement, the
delivery to UBS Limited of the Purchase Shares being purchased and the payment
therefor.


                                       18
<PAGE>   19
                           SECTION 8. Registration of the Shares; Compliance
with the Securities Act.

                           8.1. Registration Procedures and Expenses. The
Company shall:

                  (a)      within 90 days after the Closing, prepare and file
                           with the SEC a Registration Statement (as defined
                           below) covering the resale by the UBS Parties, from
                           time to time, of the Shares (not to exceed a number
                           of Shares equal to 130% of the number of Purchase
                           Shares) through the facilities of the New York Stock
                           Exchange, the automated quotation system of The
                           Nasdaq Stock Market or the facilities of any other
                           national securities exchange on which the Company's
                           common stock is then traded or in privately
                           negotiated transactions (the "Initial Registration
                           Statement"). If the total number of Shares issued to
                           the UBS Parties hereunder and under the Forward Stock
                           Purchase Agreement exceeds the number of Shares
                           covered by the Initial Registration Statement, then
                           the Company shall prepare and file with the SEC such
                           additional Registration Statement or Statements as
                           shall be necessary to cover the resale by UBS-LB of
                           such excess Shares in the same manner as contemplated
                           by the Initial Registration Statement for the Shares
                           covered thereby (each, an "Additional Registration
                           Statement"); provided that prior to delivering
                           certificates evidencing any such excess Shares to
                           UBS-LB, the Company shall cause such Registration
                           Statement to have become effective. The Company
                           agrees that no other shareholder of the Company shall
                           have any right (which has not been waived or expired)
                           to require the Company to register the sale of any
                           shares owned by such shareholder under the Initial or
                           any Additional Registration Statement. For purposes
                           of this Purchase Agreement, "Registration Statement"
                           means a registration statement under the Securities
                           Act on Form S-3 covering the resale by one or both
                           UBS Parties of up to a specified number of Shares,
                           filed and maintained effective by the Company
                           pursuant to the provisions of this Section 8,
                           including the Prospectus (as defined below) contained
                           therein, any amendments and supplements to such
                           registration statement, including all post-effective
                           amendments thereto, and all exhibits and all material
                           incorporated by reference into such registration
                           statement;

                  (b)      use all reasonable best efforts to cause the SEC to
                           notify the Company of the SEC's willingness to
                           declare the Initial Registration Statement effective
                           within 60 days after the Registration Statement is
                           filed by the Company; provided that the Company will
                           use its reasonable best efforts to cause such Initial
                           Registration Statement to become effective no later
                           than 90 days after the Closing Date;

                  (c)      prepare and file with the SEC such amendments and
                           supplements to the


                                       19
<PAGE>   20
                           Registration Statement and the prospectus used in
                           connection therewith (the "Prospectus") as may be
                           necessary to keep the Registration Statement
                           effective until the date on which the Shares may be
                           resold by the UBS Parties without registration, by
                           reason of Rule 144(k) under the Securities Act or any
                           other rule of similar effect;

                  (d)      furnish to the UBS Parties with respect to the Shares
                           registered under the Registration Statement (and to
                           each underwriter, if any, of such Shares) such
                           reasonable number of copies of Prospectuses,
                           including any supplements and amendments thereto,
                           promptly following the effectiveness of such
                           Registration Statement an opinion from counsel to the
                           Company covering the matters set forth on Exhibit B
                           hereto and such other documents as the UBS Parties
                           may reasonably request, in order to facilitate the
                           public sale or other disposition of all or any of the
                           Shares by the UBS Parties;

                  (e)      use its reasonable best efforts to prevent the
                           happening of any event that would cause such
                           Registration Statement to contain a material
                           misstatement or omission or to be not effective and
                           usable for resale of the Shares during the period
                           that such Registration Statement is required to be
                           effective and usable; provided that this paragraph
                           (e) shall in no way limit the Company's right to
                           suspend the right of the UBS Parties to effect sales
                           under the Registration Statement during any Black-out
                           Period as specified at Section 6.2 above.

                  (f)      file documents required of the Company for normal
                           blue sky clearance in states specified in writing by
                           the UBS Parties, provided, however, that the Company
                           shall not be required to qualify to do business or
                           consent to service of process in any jurisdiction in
                           which it is not now so qualified or has not so
                           consented; and

                  (g)      bear all reasonable out-of-pocket expenses in
                           connection with the procedures in paragraphs (a)
                           through (f) of this Section 8.1 and the registration
                           of the Shares pursuant to the Registration Statement,
                           the enforcement (in the case of breach by the
                           Company) of this Agreement or the Forward Stock
                           Purchase Agreement or the Master Agreement referred
                           to in the Forward Stock Purchase Agreement, including
                           the reasonable fees and expenses of counsel or other
                           advisers to the UBS Parties, other than underwriting
                           discounts, brokerage fees and commissions incurred by
                           the UBS Parties, if any.

                           8.2.  Covenants in Connection With Registration.

                  (a) The Trust and the Corporation hereby covenant with the UBS
Parties that (i) the Company shall not file any Registration Statement or
Prospectus relating to the resale of the


                                       20
<PAGE>   21
Shares or any amendment or supplement thereto, unless a copy thereof shall have
been first submitted to the UBS Parties and the UBS Parties did not object
thereto in good faith (provided that if the UBS Parties do not object within two
business days of receiving any such material, they shall be deemed to have no
objection thereto); (ii) the Company shall immediately notify the UBS Parties of
the issuance by the SEC of any stop order suspending the effectiveness of such
Registration Statement or the initiation of any proceedings for such purpose;
(iii) the Company shall make every reasonable effort to obtain the withdrawal of
any order suspending the effectiveness of such Registration Statement at the
earliest possible moment; (iv) the Company shall notify the UBS Parties of the
receipt of any notification with respect to the suspension of the qualification
of the Shares for sale under the securities or blue sky laws of any jurisdiction
or the initiation of any proceeding for such purpose; and (v) the Company shall
as soon as practicable notify the UBS Parties in writing of the existence of any
fact which results in any Registration Statement, any amendment or
post-effective amendment thereto, the Prospectus, any prospectus supplement, or
any document incorporated therein by reference containing an untrue statement of
a material fact or omitting to state a material fact required to be stated
therein or necessary to make the statements therein not misleading and shall
(except during a Black-out Period) prepare a supplement or post-effective
amendment to such Registration Statement or the Prospectus or any document
incorporated therein by reference or file any other required document so that,
as thereafter delivered to the purchasers of the Shares, the Prospectus will not
contain an untrue statement of a material fact or omit to state any material
fact necessary to make the statements therein not misleading; provided that this
clause (v) shall in no way limit the Company's right to suspend the right of the
UBS Parties to effect sales under the Registration Statement during any
Black-out Period as specified at Section 6.2 above.

                  (b) The UBS Parties shall notify the Company at least two
business days prior to the date on which it intends to commence effecting any
resales of Shares under a Registration Statement and if the Company does not,
within such two-day period, advise the UBS Parties of the existence of any facts
of the type referred to in Section 8.2(a)(v) above, then the Company shall be
deemed to have certified and represented to the UBS Parties that no such facts
then exist and the UBS Parties may rely on such certificate and representation
in making such sales. The preceding sentence shall in no way limit the Company's
obligations under Section 8.2(a) above.

                           8.3. Extension of Required Effectiveness. In the
event that the Company shall give any notice required by Section 8.2(a)(v)
hereof, the period during which the Company is required to keep such
Registration Statement effective and useable shall be extended by the number of
days during the period from and including the date of the giving of such notice
to and including the date when the UBS Parties are advised in writing by the
Company that the use of the Prospectus may be resumed.

                           8.4. Transfer of Shares After Registration. Each UBS
Party agrees that it will not effect any disposition of the Shares or its right
to purchase the Shares that would constitute a sale within the meaning of the
Securities Act or pursuant to any applicable state securities or blue sky laws
except as contemplated in each Registration Statement referred to in


                                       21
<PAGE>   22
Section 8.1 or except pursuant to any exemption from the registration
requirements of the Securities Act (including, without limitation, Rule 144
promulgated thereunder and any successor thereto) and that it will promptly
notify the Company of any changes in the information set forth in any such
Registration Statement regarding the UBS Parties or its Plan of Distribution.

                           8.5. Indemnification. For the purpose of this Section
8.5, the term "Registration Statement" shall include any final prospectus,
exhibit, supplement or amendment included in or relating to any Registration
Statement referred to in Section 8.1.

                  (a) Indemnification by Company. For purposes of this Section
8.5, the Trust and the Corporation, referred to as the "Company" agree to
indemnify and hold harmless the UBS Parties and as more particularly described
herein. The Company agrees to indemnify and hold harmless the UBS Parties and
each person, if any, who controls either UBS Party within the meaning of the
Securities Act, against any losses, claims, damages, liabilities or expenses,
joint or several, to which the UBS Parties or such controlling person may become
subject (including in settlement of any litigation, if such settlement is
effected with the written consent of the Company), insofar as such losses,
claims, damages, liabilities or expenses (or actions in respect thereof as
contemplated below) arise out of or are based upon any untrue statement or
alleged untrue statement of any material fact contained in any Registration
Statement, including the Prospectus, financial statements and schedules, and all
other documents filed as a part thereof, as amended at the time of effectiveness
of such Registration Statement, including any information deemed to be a part
thereof as of the time of effectiveness pursuant to paragraph (b) of Rule 430A,
or pursuant to Rule 434, of the Rules and Regulations, or the Prospectus, in the
form first filed with the SEC pursuant to Rule 424(b) of the Regulations, or
filed as part of such Registration Statement at the time of effectiveness if no
Rule 424(b) filing is required, or any amendment or supplement thereto, or arise
out of or are based upon the omission or alleged omission to state in any of
them a material fact required to be stated therein or necessary to make the
statements in any of them not misleading, and will reimburse each UBS Party and
each such controlling person for any legal and other expenses as such expenses
are reasonably incurred by the UBS Parties or such controlling person in
connection with investigating, defending, settling, compromising or paying any
such loss, claim, damage, liability, expense or action. The Company will also
indemnify selling brokers, dealers and similar securities industry professionals
participating in the sale or resale of the Shares, their officers, directors and
partners and each person who controls any such person within the meaning of the
Securities Act, provided, however, that the Company will not be liable in any
such case to the extent that any such loss, claim, damage, liability or expense
arises out of or is based upon an untrue statement or alleged untrue statement
or omission or alleged omission made in such Registration Statement, such
Prospectus or any amendment or supplement thereto in reliance upon and in
conformity with written information furnished to the Company (i) by or on behalf
of the UBS Parties expressly for use therein or (ii) any statement or omission
in any Prospectus that is corrected in any subsequent Prospectus that was
delivered to a UBS Party prior to the pertinent sale or sales by such UBS Party
and not delivered by such UBS Party in connection with such sale or sales.


                                       22
<PAGE>   23
                  (b) Indemnification by UBS Parties. The UBS Parties will
indemnify and hold harmless the Company, each of its directors, each of its
officers who signed any Registration Statement and each person, if any, who
controls the Company within the meaning of the Securities Act, against any
losses, claims, damages, liabilities or expenses, joint and several, to which
the Company, each of its directors, each of its officers who signed any
Registration Statement or any controlling person may become subject (including
in settlement of any litigation, if such settlement is effected with the written
consent of the UBS Parties) insofar as such losses, claims, damages, liabilities
or expenses (or actions in respect thereof as contemplated below) arise out of
or are based upon any untrue or alleged untrue statement of any material fact
contained in such Registration Statement, such Prospectus, or any amendment or
supplement thereto, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in such Registration
Statement, such Prospectus, or any amendment or supplement thereto, in reliance
upon and in conformity with written information furnished to the Company by or
on behalf of the UBS Parties expressly for use therein, and will reimburse the
Company, each of its directors, each of its officers who signed such
Registration Statement and each controlling person for any legal and other
expense reasonably incurred by the Company, each of its directors, each of its
officers who signed such Registration Statement or controlling person in
connection with investigating, defending, settling, compromising or paying any
such loss, claim, damage, liability, expense or action.

                  (c) Proceedings. Promptly after receipt by an indemnified
party under this Section 8.5 of notice of the commencement of any action, such
indemnified party will, if a claim in respect thereof is to be made against an
indemnifying party under this Section 8.5 notify the indemnifying party in
writing of the commencement thereof; but the omission so to notify the
indemnifying party will not relieve it from any liability which it may have to
any indemnified party for contribution or otherwise than under the indemnity
agreement contained in this Section 8.5 or to the extent it is not prejudiced as
a proximate result of such failure. In case any such action is brought against
any indemnified party and such indemnified party seeks or intends to seek
indemnity from an indemnifying party, the indemnifying party will be entitled to
participate in, and, to the extent that it may wish, jointly with all other
indemnifying parties similarly notified, to assume and control the defense
thereof with counsel reasonably satisfactory to such indemnified party;
provided, however, if the defendants in any such action include both the
indemnified party and the indemnifying party and the indemnified party shall
have reasonably concluded that there may be a conflict between the positions of
the indemnifying party and the indemnified party in conducting the defense of
any such action or that there may be legal defenses available to it and/or other
indemnified parties which are different from or additional to those available to
the indemnifying party, the indemnified party or parties shall have the right to
select separate counsel to assume such legal defenses and to otherwise
participate in the defense of such action on behalf of such indemnified party or
parties. Upon receipt of notice from the indemnifying party to such indemnified
party of its election so to assume the defense of such action and approval by
the indemnified party of counsel, the indemnifying party will not be liable to
such indemnified party under this Section


                                       23
<PAGE>   24
8.5 for any reasonable legal or other expenses subsequently incurred by such
indemnified party in connection with the defense thereof unless (i) the
indemnified party shall have employed such counsel in connection with the
assumption of legal defenses in accordance with the proviso to the preceding
sentence (it being understood, however, that the indemnifying party shall be not
liable for the expenses of more than one separate counsel, approved by such
indemnifying party in the case of paragraph (a), representing the indemnified
parties who are parties to such action) or (ii) the indemnifying party shall not
have employed counsel reasonably satisfactory to the indemnified party to
represent the indemnified party within a reasonable time after notice of
commencement of action, in each of which cases the fees and expenses of counsel
shall be at the expense of the indemnifying party. Notwithstanding the
foregoing, without the written consent of the indemnified party, the
indemnifying party may not settle or agree to compromise of any such claim or
action for which the indemnified party intends to seek reimbursement from the
indemnifying party, and the indemnified party will permit the indemnifying party
to settle or compromise any such action or suit at the indemnifying party's sole
cost and expense if as a result thereof the indemnified party is provided a full
and unconditional release of such claim or action.

                  (d) Contribution. If the indemnification provided for in this
Section 8.5 is required by its terms but is for any reason held to be
unavailable to or otherwise insufficient to hold harmless an indemnified party
under paragraphs (a), (b) or (c) of this Section 8.5 in respect of any losses,
claims, damages, liabilities or expenses referred to herein, then each
applicable indemnifying party shall contribute to the amount paid or payable by
such indemnified party as a result of any losses, claims, damages, liabilities
or expenses referred to herein in such proportion as is appropriate to reflect
the relative benefits received by the Company and the UBS Parties from the
purchase and sale of the Shares and the relative fault of the Company and the
UBS Parties in connection with the statements or omissions or inaccuracies in
the representations and warranties in this Agreement which resulted in such
losses, claims, damages, liabilities or expenses, as well as any other relevant
equitable considerations. The respective relative benefits received by the
Company on the one hand and the UBS Parties on the other shall be deemed to be
in the same proportion as the amount paid by the UBS Parties to the Company
pursuant to this Agreement for the Shares purchased by the UBS Parties that were
sold pursuant to any Registration Statement bears to the difference (the
"Difference") between the amount the UBS Parties paid for the Shares that were
sold pursuant to such Registration Statement and the amount received by the UBS
Parties from such sale. The relative fault of the Company and the UBS Parties
shall be determined by reference to, among other things, whether the untrue or
alleged untrue statement of a material fact or the omission or alleged omission
to state a material fact or the inaccurate or the alleged inaccurate
representation and/or warranty relates to information supplied by the Company or
by the UBS Parties and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.
The amount paid or payable by a party as a result of the losses, claims,
damages, liabilities and expenses referred to above shall be deemed to include,
subject to the limitations set forth in paragraph (c) of this Section 8.5 any
reasonable legal or other fees or expenses incurred by such party in connection
with investigating or defending any action or claim. The provisions set forth in
paragraph (c) of this Section 8.5 with respect to notice of commencement of any
action shall apply if a claim for contribution is to be made under this
paragraph (d);


                                       24
<PAGE>   25
provided, however, that no additional notice shall be required with respect to
any action for which notice has been given under paragraph (c) for purposes of
indemnification. The Company and the UBS Parties agree that it would not be just
and equitable if contribution pursuant to this Section 8.5 were determined
solely by pro rata allocation or by any other method of allocation which does
not take account of the equitable considerations referred to in this paragraph.
Notwithstanding the provisions of this Section 8.5, the UBS Parties shall not be
required to contribute any amount in excess of the amount by which the aggregate
proceeds received by the UBS Parties from the transactions contemplated hereby
exceeds the amount of any damages that the UBS Parties has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission. No person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.

                  (e) Relationship Between the Trust and the Corporation. The
obligations set forth in this Section 8.5 shall in no way limit the ability of
the parties to allocate liability between themselves.

                           8.6. Termination of Conditions and Obligations. The
conditions precedent imposed by Section 6 or this Section 8 upon the
transferability of the Shares shall cease and terminate as to any particular
number of the Shares when such Shares may be, and in fact are, sold under Rule
144(k) promulgated under the Securities Act. Further, as to any particular
number of Shares, the conditions precedent imposed by Section 6 or this Section
8 on the transferability of such Shares shall cease and terminate at such
earlier time as an opinion of counsel satisfactory to the Company and the UBS
Parties shall have been rendered to the effect that such conditions are not
necessary in order to comply with the Securities Act with respect to such
Shares. In each such case, the Company's obligation to maintain an effective
Registration Statement with respect to such Shares which are no longer be
subject to the restrictions and limitations of Section 6 and this Section 8
shall cease.

                           8.7. Information Available. So long as any
Registration Statement covering the resale of any Shares owned by either UBS
Party is effective, the Trust and the Corporation will furnish to the UBS
Parties:

                  (a)      as soon as practicable after available, one copy of
                           (i) its Joint Annual Report to Shareholders, (ii) its
                           Joint Annual Report on Form 10-K, (iii) its joint
                           Quarterly Reports to Shareholders, (iv) its joint
                           quarterly reports on Form 10-Q, (v) a full copy of
                           the particular Registration Statement covering the
                           Shares (the foregoing, in each case, excluding
                           exhibits) and (vi) upon request, any or all other
                           public filings under the Exchange Act by the Trust
                           and the Corporation; and

                  (b)      upon the reasonable request of either UBS Party, a
                           reasonable number of copies of the Prospectuses to
                           supply to any other party requiring such
                           Prospectuses;


                                       25
<PAGE>   26
and the Trust and the Corporation, upon the reasonable request of the UBS
Parties, will meet with the UBS Parties or a representative thereof at the
Trust's and the Corporation's headquarters to discuss all information relevant
for disclosure in such Registration Statement covering the Shares, subject to
appropriate confidentiality limitations.

                           8.8. Non-Exclusivity. The rights and remedies
provided under Section 8.5 hereof shall not be in limitation or exclusion of any
other rights or remedies available to a party, whether by agreement, at law, in
equity or otherwise, with respect to the inaccuracy of any representation or
warranty by, or the breach of any covenant of, the other party made herein or in
the Forward Stock Purchase Agreement.

                           8.9. Notice Requirement. The Trust and the
Corporation each covenant and agree that it will notify the UBS Parties at any
time it becomes aware that as a result of a change in the Trust's and the
Corporation's capital stock the UBS Parties beneficially hold more than 4.9% of
the Trust's shares of beneficial interest or the Corporation's shares of common
stock.

                           8.10. Transfer of Shares. The Trust and the
Corporation covenant and agree to use their best efforts to cause the transfer
agent to effect promptly any transfer of the Shares requested by the UBS Parties
and to cause the transfer agent to remove promptly the restrictive legend from
the Shares upon presentation to the transfer agent of all necessary
documentation.

                           SECTION 9. Registration Exemptions. For so long as
the Trust and the Corporation are subject to the reporting requirements of
Section 13 or 15 of the Exchange Act, the Trust and the Corporation covenant
that they will file the reports required to be filed by it under the Securities
Act and Section 13(a) and 15(d) of the Exchange Act and the rules and
regulations adopted by the Commission thereunder.

                           SECTION 10. Broker's Fee. Other than any fees payable
under or in connection with the Forward Stock Purchase Agreement, each of the
parties hereto hereby represents that, on the basis of any actions and
agreements by it, there are no brokers or finders entitled to compensation in
connection with the sale or issuance of the Shares to the UBS Parties.

                           SECTION 11. Notices. All notices, requests, consents
and other communications hereunder shall be in writing, shall be mailed by
first-class registered or certified airmail, by telegram or telecopy or sent by
nationally recognized overnight express courier postage prepaid, and shall be
deemed given when so mailed or for telecopies, when transmitted and receipt
confirmed, and shall be delivered as addressed as follows:

                  (a)      if to the Trust and the Corporation, to:

                           Starwood Lodging Trust
                           Starwood Lodging Corporation


                                       26
<PAGE>   27
                           2231 East Camelback Road,
                           Suites 400 and 410
                           Phoenix, Arizona  85016
                           Attn:  Ronald Brown/Alan Schneid
                           Telecopier:  602-852-0115

                           with a copy so mailed to:

                           Sidley & Austin
                           555 West 5th Street
                           Suite 4000
                           Los Angeles, California  90013
                           Attn:  Sherwin L. Samuels
                           Telecopier:  213-896-6600

                           or to such other person at such other place as the
                           Trust and the Corporation shall designate to the UBS
                           Parties in writing; and

                  (b)      if to the UBS Parties, c/o UBS Securities, LLC, 299
                           Park Avenue, New York, New York 10171, Telecopier:
                           212-223-2815 or at such other address or addresses as
                           may have been furnished to the Trust and the
                           Corporation in writing.

                           SECTION 12. Changes. This Agreement may not be
modified or amended except pursuant to an instrument in writing signed by the
Trust and the Corporation and the UBS Parties.

                           SECTION 13. Headings. The headings of the various
sections of this Agreement have been inserted for convenience of reference only
and shall not be deemed to be part of this Agreement.

                           SECTION 14. Severability. In case any provision
contained in this Agreement should be invalid, illegal or unenforceable in any
respect, the validity, legality and enforceability of the remaining provisions
contained herein shall not in any way be affected or impaired thereby.

                           SECTION 15. Governing Law; Jurisdiction.

                           15.1. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD
TO THE CONFLICTS OF LAW PRINCIPLES THEREOF) AND OF THE FEDERAL LAW OF THE UNITED
STATES OF AMERICA.

                           15.2. EACH OF THE TRUST AND THE CORPORATION (I)
HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF, AND AGREES THAT ANY SUIT
SHALL BE BROUGHT IN, THE STATE AND FEDERAL COURTS LOCATED IN THE CITY AND COUNTY
OF NEW YORK FOR THE PURPOSE OF ANY SUIT,


                                       27
<PAGE>   28
ACTION OR OTHER PROCEEDING ARISING OUT OF OR BASED UPON THIS AGREEMENT OR THE
TRANSACTIONS CONTEMPLATED HEREBY AND (II) HEREBY WAIVES TO THE EXTENT NOT
PROHIBITED BY APPLICABLE LAW, AND AGREES NOT TO ASSERT, BY WAY OF MOTION, AS A
DEFENSE OR OTHERWISE, IN ANY SUCH PROCEEDING, ANY CLAIM THAT IT IS NOT SUBJECT
PERSONALLY TO THE JURISDICTION OF THE ABOVE-NAMED COURTS, THAT ITS PROPERTY IS
EXEMPT OR IMMUNE FROM ATTACHMENT OR EXECUTION, THAT ANY SUCH PROCEEDING BROUGHT
IN ONE OF THE ABOVE-NAMED COURTS IS BROUGHT IN AN INCONVENIENT FORUM, THAT THE
VENUE OF ANY SUCH PROCEEDING BROUGHT IN ONE OF THE ABOVE-NAMED COURTS IS
IMPROPER, OR THAT THIS AGREEMENT, OR THE TRANSACTIONS CONTEMPLATED HEREBY MAY
NOT BE ENFORCED IN OR BY SUCH COURT.

                           SECTION 16. Transfer to Affiliate. Notwithstanding
anything herein to the contrary, UBS Limited may transfer the Purchase Shares to
any affiliate of UBS Limited, together with all of UBS Limited's rights
hereunder; provided that (i) such affiliate shall assume and be subject to all
of UBS Limited's obligations hereunder; (ii) such affiliate shall be an
"accredited investor" within the meaning of Rule 501 of Regulation D promulgated
under the Securities Act; and (iii) such transfer shall be consistent with the
investment representations set forth at Section 6.1 hereto. In the event of such
an assignment, such affiliate shall in all respects be substituted for UBS
Limited as a party hereto.

                           SECTION 17. Counterparts. This Agreement may be
executed in two or more counterparts, each of which shall constitute an
original, but all of which, when taken together, shall constitute but one
instrument, and shall become effective when one or more counterparts have been
signed by each party hereto and delivered to the other parties.

                           SECTION 18. Waiver of Trial by Jury. EACH PARTY
HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE TO JURY TRIAL IN CONNECTION WITH
ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT.


                                       28
<PAGE>   29
                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be executed by their duly authorized representatives as of the day
and year first above written.

                                   Starwood Lodging Trust


                                   By: /s/ Ronald Brown
                                      ----------------------------
                                      Name:  Ronald C. Brown
                                      Title: Senior Vice President & CFO


                                   Starwood Lodging Corporation


                                   By: /s/ Alan M. Schnaid
                                      ----------------------------
                                      Name:  Alan M. Schnaid
                                      Title: Vice President and Corporate
                                             Controller


                                   UBS Limited


                                   By: /s/
                                      ----------------------------
                                      Name:
                                      Title:


                                   By: /s/ Adam Matthews
                                      ----------------------------
                                      Name:  Adam Matthews
                                      Title: Director

                                   Union Bank of Switzerland
                                   London Branch


                                   By: /s/ C. Donegan
                                      ----------------------------
                                      Name:  C. Donegan
                                      Title: Vice President


                                   By: /s/ Adam Matthews
                                      ----------------------------
                                      Name:  A.J. Matthews
                                      Title: Vice President


                                       29
<PAGE>   30
                                                                      Appendix I
                                                                    (one of two)


                         STOCK CERTIFICATE QUESTIONNAIRE



         Pursuant to Section 3 of the Agreement, please provide us with the
following information:


1.       The exact name that your Shares are to be registered in (this is the
         name that will appear on your stock certificate(s)). You may use a
         nominee name if appropriate:

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

2.       All relationships between each UBS Party and the Registered Holder
         listed in response to Item 1 above:

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


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


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

3.       The mailing address of the Registered Holder listed in response to item
         1 above:

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


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


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


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

4.       The Social Security Number or Tax Identification Number of the
         Registered Holder listed in response to item 1 above:

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


                                      C-31
<PAGE>   31
                                                                      Appendix I
                                                                    (two of two)


                          REGISTRATION STATEMENT QUESTIONNAIRE

         In connection with the preparation of the Registration Statement,
please provide us with the following information:

                  1. Pursuant to the "Selling Shareholders" section of the
Registration Statement, please state your or your organization's name exactly as
it should appear in the Registration Statement:

                  2. Please provide the number of shares that you or your
organization will own immediately after Closing, including those Shares
purchased by you or your organization pursuant to this Purchase Agreement and
those shares purchased by you or your organization through other transactions:

                  3. Have you or your organization had any position, office or
other material relationship within the past three years with the Trust, the
Corporation or any of their affiliates?


                  _____ Yes
                  _____ No

                  If yes, please indicate the nature of any such relationships
below:

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

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

 -----------------------------------------------------------------------------
<PAGE>   32
APPENDIX II


Attention:

                   PURCHASER'S CERTIFICATE OF SUBSEQUENT SALE

                  The undersigned, [an officer of, or other person duly
authorized by] ___________________________________________________ hereby
               [fill in official name of individual or institution]

certifies that he/she [said institution] is the Purchaser of the shares
evidenced by the attached certificate, and as such, sold such shares on ________
                                                                         [date]

in accordance with Registration Statement number ______________________________
_______________________________________________________________________,
 [fill in the number of or otherwise identify Registration Statement]

the Securities Act of 1933, as amended, and any applicable state securities or
blue sky laws and the requirement of delivering a current prospectus by the
Trust and the Corporation has been complied with in connection with such sale.

Print or Type:

                  Name of Purchaser
                    (Individual or
                    Institution):

                  Name of Individual
                    representing
                    Purchaser (if an
                    Institution)

                  Title of Individual
                    representing
                    Purchaser (if an
                    Institution):

Signature by:

                  Individual Purchaser
                    or Individual repre-
                    senting Purchaser:
<PAGE>   33
                                                                     EXHIBIT A-1

         [Form of Closing Opinion of Counsel to the Trust and the Corporation]


                                      C-34
<PAGE>   34
                                                                     EXHIBIT A-2

         [Form of Closing Opinion of Counsel to the Trust and the Corporation]


                                      C-35
<PAGE>   35
                                                                       EXHIBIT B

                 Opinion Matters for Additional Registration Statements

[opinion paragraphs to be delivered in connection with resale registration
statements]

                           The Corporation is duly organized, validly existing
and in good standing under the laws of the State of Maryland, and the
Corporation has the requisite corporate power and authority to own its
properties and to conduct is business as presently conducted. The Trust is a
real estate investment trust duly organized, validly existing and in good
standing as a business trust under the laws of the State of Maryland, and the
Trust has the requisite trust power and authority to own its properties and to
conduct its business as is presently conducted.

                           The [Additional] Shares have been duly authorized and
are validly issued, nonassessable and fully paid, and are not subject to any
preemptive or similar rights.

                           The Registration Statement has been declared
effective under the Securities Act; to our knowledge, no stop order suspending
the effectiveness of the Registration Statement has been issued and no
proceedings for that purpose have been instituted or threatened; and the
Registration Statement, the Final Prospectus, and each amendment thereof or
supplement thereto (except for the financial statements, schedules and the notes
thereto and the other financial data included or incorporated by reference
therein, as to which we express no opinion) comply as to form in all material
respects with the requirements of the Securities Act and the Exchange Act and
the respective rules of the Commission thereunder.

         While we have not verified, and are not passing upon and do not assume
any responsibility for, the accuracy, completeness or fairness of the statements
contained in the Registration Statement or Final Prospectus, we have
participated in reviews and discussions in connection with the preparation of
the Registration Statement and Final Prospectus, and advise you that, in the
curse of such reviews and discussions, nothing has come tot our attention which
would lead us to believe (i) that the Registration Statement at the time it
became effective (except for the financial statements and the notes thereto and
the other financial data included or incorporated by reference therein, as to
which we express no belief) contained any untrue statement of a material fact or
omitted to state any material fact necessary to make the statements therein not
misleading or (ii)that the Final Prospectus on the date thereof or on the date
of this opinion (except for the financial statements and the notes thereto and
the other financial data included or incorporated by reference therein, as to
which we express no belief) contained any untrue statement of a material fact or
omitted to state any material fact necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading.


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