Document:

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                                                                    EXHIBIT 10.1

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                           HQ GLOBAL WORKPLACES, INC.
                            HQ GLOBAL HOLDINGS, INC.

                       NOTE AND WARRANT PURCHASE AGREEMENT

                                      WITH

                         CHASE EQUITY ASSOCIATES, L.P.,

                          CT MEZZANINE PARTNERS I LLC,

                      ARES LEVERAGED INVESTMENT FUND, L.P.,

                    ARES LEVERAGED INVESTMENT FUND II, L.P.,

                          HIGHBRIDGE INTERNATIONAL LLC,

                       BLACKSTONE MEZZANINE PARTNERS L.P.,

                                       AND

                       BLACKSTONE MEZZANINE HOLDINGS L.P.

              $125,000,000 13.5% SENIOR SUBORDINATED NOTES DUE 2007

          WARRANTS TO PURCHASE UP TO 730,707.58 SHARES OF COMMON STOCK

                           DATED AS OF AUGUST 11, 2000

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                                TABLE OF CONTENTS

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Section 1.        Definitions...........................................................................2

         Section 1.1       Defined Terms................................................................2

         Section 1.2       Accounting Terms............................................................31

         Section 1.3       Rules of Construction.......................................................31

Section 2.        Sale and Purchase of Notes and Warrants..............................................32

         Section 2.1       Authorization and Issue of Notes and Warrants; Payment of Interest..........32

         Section 2.2       Issuance and Sale of Notes and Warrants on the Closing Date.................32

         Section 2.3       Notes.......................................................................32

         Section 2.4       Closing.....................................................................33

         Section 2.5       Payments....................................................................33

         Section 2.6       Fees........................................................................33

         Section 2.7       Interest Rate Limitation....................................................33

         Section 2.8       Allocation of Purchase Price................................................34

         Section 2.9       Subordination...............................................................34

         Section 2.10      Payments Pro Rata...........................................................34

Section 3.        Payment and Prepayment of Notes......................................................34

         Section 3.1       Optional Prepayments of the Notes...........................................34

         Section 3.2       Notice of Prepayment of the Notes...........................................35

         Section 3.3       Scheduled Payments..........................................................35

         Section 3.4       Taxes.......................................................................35

         Section 3.5       Purchase of Notes...........................................................37

Section 4.        Representations and Warranties of the Parent and the Issuer..........................37

         Section 4.1       Existence and Power.........................................................37

         Section 4.2       Authority...................................................................37
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         Section 4.3       Binding Effect..............................................................37

         Section 4.4       Capital Stock...............................................................38

         Section 4.5       Business Operations and Other Information; Financial Condition..............39

         Section 4.6       Litigation; No Violation of Governmental Orders or Laws.....................41

         Section 4.7       No Conflicts with Agreements, Etc...........................................41

         Section 4.8       Consents, Etc...............................................................41

         Section 4.9       Outstanding Indebtedness; Investments; Existing Letters of Credit...........42

         Section 4.10      Title to Properties.........................................................42

         Section 4.11      Taxes.......................................................................43

         Section 4.12      Disclosure..................................................................43

         Section 4.13      Offering of Securities......................................................44

         Section 4.14      Broker's or Finder's Commissions; Financial Advisory Fees...................44

         Section 4.15      Labor Matters...............................................................44

         Section 4.16      Environmental Matters.......................................................45

         Section 4.17      Margin Regulations..........................................................45

         Section 4.18      Pension and Benefit Plans...................................................46

         Section 4.19      Material Contracts..........................................................48

         Section 4.20      Insurance...................................................................48

         Section 4.21      Possession of Franchises, Licenses, Etc.....................................49

         Section 4.22      Intellectual Property.......................................................49

         Section 4.23      Use of Proceeds.............................................................50

         Section 4.24      Foreign Assets Control Regulations..........................................50

         Section 4.25      Status under Certain Laws...................................................50

         Section 4.26      Ranking of Notes............................................................50

         Section 4.27      Customers...................................................................51
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         Section 4.28      Solvency....................................................................51

         Section 4.29      Transaction Documents; Transaction..........................................51

         Section 4.30      RICO........................................................................52

         Section 4.31      Business Centers; Owners....................................................52

         Section 4.32      Restrictions on or Relating to Subsidiaries.................................52

         Section 4.33      Name Change.................................................................53

         Section 4.34      Operating Company Status....................................................53

Section 4A.       Representations of the Purchasers....................................................53

Section 5.        Closing Conditions...................................................................53

         Section 5.1       Proceedings Satisfactory....................................................54

         Section 5.2       Opinions of Counsel for Credit Parties......................................54

         Section 5.3       Representations and Warranties True, Etc.; Certificates.....................54

         Section 5.4       Absence of Material Adverse Change, Etc.....................................55

         Section 5.5       Consents and Approvals......................................................55

         Section 5.6       Absence of Litigation, Orders, Etc..........................................55

         Section 5.7       Subordination Agreement.....................................................55

         Section 5.8       Warrant Holder Agreement....................................................55

         Section 5.9       Guarantee...................................................................55

         Section 5.10      Transactions................................................................55

         Section 5.11      Appointment of Agent for Service............................................59

         Section 5.12      Solvency Certificate........................................................59

         Section 5.13      Fees........................................................................59

         Section 5.14      Wire Instructions...........................................................59

         Section 5.15      Transaction Costs; Availability.............................................60

         Section 5.16      HSR Filings.................................................................60

         Section 5.17      Certificate As to Use of Proceeds; Fees and Expenses........................60
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         Section 5.18      Financial Statements, Projections and Report; Auditor's Letter..............60

         Section 5.19      Employment Agreement........................................................61

         Section 5.20      Insurance...................................................................61

         Section 5.21      Development Assets..........................................................61

         Section 5.22      Registration Rights Agreement...............................................61

         Section 5.23      Additional Series A Preferred Stock Investment..............................61

         Section 5.24      Closing Date Liquidity......................................................62

Section 6.        Financial Statements and Information.................................................62

Section 7.        Inspection of Properties and Books; VCOC Matters.....................................67

Section 8.        Affirmative Covenants................................................................68

         Section 8.1       Payment of Principal, Prepayment Charge and Interest........................68

         Section 8.2       Payment of Taxes and Claims.................................................68

         Section 8.3       Maintenance of Properties, Records and Corporate Existence..................68

         Section 8.4       Insurance...................................................................69

         Section 8.5       Future Guarantors...........................................................70

         Section 8.6       ERISA.......................................................................70

         Section 8.7       Intellectual Property Rights................................................70

         Section 8.8       Good Standing of Subsidiaries...............................................71

         Section 8.9       Contributions; Payments; etc................................................71

         Section 8.10      [Intentionally omitted.]....................................................71

         Section 8.11      [Intentionally Omitted].....................................................71

         Section 8.12      Permitted Acquisitions......................................................71

         Section 8.13      FrontLine Indemnification Contribution Agreement............................75

Section 9.        Negative and Maintenance Covenants...................................................75

         Section 9.1       Restrictions on Indebtedness................................................75
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         Section 9.2       Restrictions on Liens.......................................................77

         Section 9.3       Limitation on Sale and Leasebacks...........................................78

         Section 9.4       Mergers, Consolidations and Sales of Assets; Acquisitions; Subsidiaries.....78

         Section 9.5       Sale or Discount of Receivables.............................................80

         Section 9.6       Conduct of Business.........................................................80

         Section 9.7       Restricted Payments and Investments.........................................80

         Section 9.8       Issuance of Capital Stock...................................................83

         Section 9.9       Transactions with Affiliates................................................83

         Section 9.10      Capital Expenditures........................................................83

         Section 9.11      Limitation on Dividend Restrictions Affecting Subsidiaries..................85

         Section 9.12      Acquisition of Margin Securities............................................85

         Section 9.13      Amendments of Charter, By-Laws and Certain Documents........................86

         Section 9.14      Financial Covenants.........................................................87

         Section 9.15      Board Observer Rights.......................................................89

         Section 9.16      Business....................................................................89

Section 10.       Events of Default....................................................................90

         Section 10.1      Events of Default; Remedies.................................................90

         Section 10.2      Suits for Enforcement; Remedies.............................................93

         Section 10.3      Remedies Cumulative.........................................................93

         Section 10.4      Remedies Not Waived.........................................................93

Section 11.       Registration, Exchange, and Transfer of Notes........................................93

Section 12.       Lost, Stolen, Damaged and Destroyed Notes............................................94

Section 13.       Miscellaneous........................................................................94

         Section 13.1      Amendment and Waiver........................................................94

         Section 13.2      Expenses....................................................................95
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         Section 13.3      Survival of Representations and Warranties..................................96

         Section 13.4      Successors and Assigns......................................................96

         Section 13.5      Notices.....................................................................97

         Section 13.6      Indemnification............................................................100

         Section 13.7      Public Announcements.......................................................101

         Section 13.8      No Fiduciary Relationship..................................................101

         Section 13.9      Integration and Severability...............................................101

         Section 13.10     Counterparts...............................................................101

         Section 13.11     Governing Law..............................................................101

         Section 13.12     Submission to Jurisdiction; Waiver of Service and Venue....................101

         Section 13.13     Waiver of Right to Trial by Jury...........................................102
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                       NOTE AND WARRANT PURCHASE AGREEMENT

This NOTE AND WARRANT PURCHASE AGREEMENT (this "Agreement") is made and entered
into as of August 11, 2000 by and among HQ GLOBAL WORKPLACES, INC., a Delaware
corporation (formerly, HQ Merger Subsidiary, Inc., as successor by merger with
HQ Global Workplaces, Inc., as successor by merger with VANTAS Incorporated)
(the "Issuer"), HQ GLOBAL HOLDINGS, INC., a Delaware corporation of which the
Issuer is a wholly-owned subsidiary (together with its successors, the
"Parent"), CHASE EQUITY ASSOCIATES, L.P., a Delaware limited partnership
("Chase"), CT MEZZANINE PARTNERS I LLC, a Delaware limited liability company
("Capital Trust"), ARES LEVERAGED INVESTMENT FUND, L.P., a Delaware limited
partnership ("Ares I"), ARES LEVERAGED INVESTMENT FUND II, L.P. a Delaware
limited partnership ("Ares II"), HIGHBRIDGE INTERNATIONAL LLC, a Grand Cayman
limited liability company ("Highbridge"), BLACKSTONE MEZZANINE PARTNERS L.P., a
Delaware limited partnership ("Blackstone Partners"), and Blackstone Mezzanine
Holdings L.P., a Delaware limited partnership ("Blackstone Holdings" and,
together with Chase, Capital Trust, Ares I, Ares II, Highbridge, Blackstone
Partners, and their respective successors, assigns and transferees in accordance
with the terms of this Agreement, collectively, the "Purchasers" and each
individually a "Purchaser").

                                    RECITALS

        WHEREAS, pursuant to the Agreement and Plan of Merger, dated as of
January 20, 2000, among HQ Global Workplaces, Inc. ("HQ"), VANTAS Incorporated,
a Nevada corporation ("Vantas"), CarrAmerica Realty Corporation, a Delaware
corporation ("CarrAmerica") and FrontLine Capital Group, a Delaware corporation
(formerly, Reckson Services Industries, Inc., "FrontLine"), as amended by the
First Amendment thereto dated as of April 29, 2000, and as amended by the Second
Amendment thereto dated as of May 31, 2000 (as amended, supplemented or
otherwise modified from time to time in accordance with the provisions hereof
and thereof, the "HQ Merger Agreement"), Vantas has merged with and into HQ
Global Workplaces, Inc. (the "HQ Merger"), with HQ Global Workplaces, Inc.
continuing as the surviving corporation (hereinafter "Surviving HQ");

        WHEREAS, upon the consummation of the HQ Merger (x) pursuant to the
Stock Purchase Agreement dated as of January 20, 2000 by and among CarrAmerica,
the other stockholders party thereto and FrontLine, as amended by the First
Amendment thereto, dated as of April 29, 2000 (the "HQ Stock Purchase
Agreement"), CarrAmerica and certain other Persons transferred to FrontLine
4,130,530 shares of voting common stock of Surviving HQ (the "HQ Stock
Purchase"), and (y) pursuant to the Stock Purchase Agreement dated as of January
20, 2000 among CarrAmerica, Omni UK, Omni Lux, Vantas and FrontLine, as amended
by the First Amendment thereto, dated as of April 29, 2000 (the "Omni Stock
Purchase Agreement" and, together with the HQ Stock Purchase Agreement, the
"Stock Purchase Agreements"), CarrAmerica transferred to Surviving HQ certain
shares of nonvoting common stock of OmniOffices (Lux) 1929 Holding Company S.A.,
a corporation formed under the laws of Luxembourg ("Omni Lux"), and

<PAGE>   9

OmniOffices (UK) Limited, a corporation formed under the laws of England ("Omni
UK") (the "Omni Stock Purchase" and, together with the HQ Stock Purchase, the
"Stock Purchases");

        WHEREAS, upon the consummation of the foregoing transactions and
pursuant to the Agreement and Plan of Merger, dated as of January 20, 2000,
among HQ Global Workplaces, Inc., HQ Global Holdings, Inc. and HQ Merger
Subsidiary, Inc. ("M Sub") (the "Second Step Merger Agreement"), Surviving HQ
merged with and into M Sub, a Wholly-owned Subsidiary of the Parent, with the
Issuer being the surviving corporation (the "Second Step Merger" and, together
with the HQ Merger, the "Mergers"), and upon the consummation of the Second Step
Merger, the holders of the Capital Stock of Surviving HQ received shares of
Capital Stock of the Parent in exchange for their shares of Capital Stock of
Surviving HQ;

        WHEREAS, in order to refinance the Senior Subordinated Bridge Loan, the
proceeds of which were used to repay existing debt of the Issuer, the Issuer has
proposed to issue and sell to the Purchasers its 13.5% Senior Subordinated Notes
Due 2007 in an aggregate principal amount equal to $125,000,000 for the
consideration and upon the terms and conditions hereinafter provided; and

        WHEREAS, the Parent has agreed to issue to the Purchasers its warrants
to purchase an aggregate of up to 730,707.58 shares of its authorized but
unissued Common Stock (subject to adjustment as therein provided) upon the terms
and conditions hereinafter provided;

        NOW, THEREFORE, the Parent, the Issuer and the Purchasers agree as
follows:

        Section 1. Definitions.

             Section 1.1 Defined Terms . For the purposes of this Agreement, the
following terms shall have the following respective meanings:

        "Acceptable Common Stock" shall mean Common Stock so long as in
connection with the issuance of such Common Stock, the holders thereof are not
granted any rights other than rights held by all holders of Common Stock on the
Closing Date.

        "Accountants" has the meaning specified in Section 6.

        "Acquired EBITDA" shall mean, for any period, Consolidated EBITDA of the
Person or business, division or product line being acquired pursuant to a
Permitted Acquisition for such period (determined in accordance with the
definition of Consolidated EBITDA contained herein, but treating references
therein and in any other defined terms used in determining Consolidated EBITDA
to "the Parent" or "the Issuer" to instead be references to the Person or
business, division or product line being acquired pursuant to the respective
Permitted Acquisition and without giving effect to clauses (ii) through (v) of,
and the proviso contained in, the definition of Consolidated EBITDA).

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        "Acquisitions" shall mean and include (I) the HQ Merger, (ii) the HQ
Stock Purchase, (iii) the UK/Lux Acquisition and (iv) the Reorganization.

        "Additional Permitted CapEx Amount" shall mean, as of any date of
determination, (I) in the event that the Total Leverage Ratio as set forth in
the certificate of the Parent then last delivered pursuant to Section 6(d)
exceeds 2.75:1.0 (or no such certificate is delivered pursuant to said Section),
$33,000,000, (ii) in the event that the Total Leverage Ratio as set forth in the
certificate of the Parent then last delivered pursuant to Section 6(d) is less
than or equal to 2.75:1.0 but greater than 2.5:1.0, $44,000,000 and (iii) in the
event that the Total Leverage Ratio as set forth in the certificate of the
Parent then last delivered pursuant to Section 6(d) is less than or equal to
2.5:1.0, $55,000,000.

        "Additional Series A Preferred Stock Investment" has the meaning
specified in Section 5.23.

        "Affiliate" means, as to any Person, any Person which directly or
indirectly controls, is controlled by, or is under common control with such
Person. For purposes of this definition, "control" of a Person means the power,
direct or indirect, (i) to vote or direct the voting of 5% or more of the
outstanding shares of Voting Stock of such Person, or (ii) to direct or cause
the direction of the management and policies of such Person whether by ownership
of Capital Stock, by contract or otherwise; provided, however, that (x) no
Purchaser shall be deemed to be an Affiliate of any Credit Party by reason of
its ownership of any Capital Stock of the Parent or Warrants and (y) no lender
under the Senior Loan Agreement shall be deemed an Affiliate of any Credit Party
solely by reason of it holding Senior Indebtedness.

        "Aggregate Available JV Basket Amount" shall mean, on any date of
determination, an amount equal to the sum of (i) $55,000,000 minus (ii) the
aggregate amount of Investments made (including for such purpose the fair market
value of any asset contributed to any Joint Venture (as determined in good faith
by senior management of the Issuer), net of Indebtedness and, without
duplication, Capitalized Lease Obligations assigned to, and assumed by, the
respective Joint Venture in connection therewith) pursuant to Section
9.7(b)(viii) after the Closing Date, minus (iii) the aggregate amount of
Indebtedness or other obligations (whether absolute, accrued, contingent or
otherwise and whether or not due) of any Joint Venture incurred after the
Closing Date for which the Parent or any of its Subsidiaries (other than the
respective Joint Venture) is liable, minus (iv) all payments made by the Parent
or any of its Subsidiaries (other than the respective Joint Venture) in respect
of Indebtedness or other obligations of the respective Joint Venture (including,
without limitation, payments in respect of obligations described in preceding
clause (iii)) after the Closing Date.

        "Annual Available JV Basket Amount" shall mean, on any date of
determination during any fiscal year of the Parent, an amount equal to the sum
of (i) $20,000,000 minus (ii) the aggregate amount of Investments made
(including for such purpose the fair market value of any asset contributed to
any Joint Venture (as determined in good faith by senior management of the
Issuer), net of Indebtedness and, without duplication,

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Capitalized Lease Obligations assigned to, and assumed by, the respective Joint
Venture in connection therewith) pursuant to Section 9.7(b)(viii) during such
fiscal year, minus (iii) the aggregate amount of Indebtedness or other
obligations (whether absolute, accrued, contingent or otherwise and whether or
not due) of any Joint Venture incurred during such fiscal year for which the
Parent or any of its Subsidiaries (other than the respective Joint Venture) is
liable, minus (iv) all payments made by the Parent or any of its Subsidiaries
(other than the respective Joint Venture) in respect of Indebtedness or other
obligations of the respective Joint Venture (including, without limitation,
payments in respect of obligations described in preceding clause (iii)) during
such fiscal year.

        "Ares I" has the meaning specified in the introductory paragraph to this
Agreement.

        "Ares II" has the meaning specified in the introductory paragraph to
this Agreement.

        "Assignee" has the meaning specified in Section 13.4(b).

        "Assignor" has the meaning specified in Section 13.4(b).

        "Authorized Officer" means with respect to any corporation the Chief
Executive Officer, the President, any Vice President, the Chief Financial
Officer or the Treasurer of such Person or any further or different officer of
such corporation.

        "Back-Stop L/C Agreement" has the meaning specified in Section 5.10(j).

        "Bank Austria L/C Reimbursement Agreement" has the meaning specified in
Section 5.10.

        "Bankruptcy Code" means title 11 of the United States Code entitled
"Bankruptcy," as now and hereafter in effect, any successors to such Statute and
any other applicable insolvency or other similar law of any jurisdiction.

        "Blackstone Advisor" means Blackstone Mezzanine Advisors L.P., a
Delaware limited partnership, and its successors.

        "Blackstone Holdings" has the meaning specified in the first paragraph
hereof.

        "Blackstone Partners" has the meaning specified in the first paragraph
hereof.

        "Business Center Level EBITDA" with respect to any Development Asset
shall mean, for any period, Consolidated EBITDA of such Development Asset for
such period (determined in accordance with the definition of Consolidated EBITDA
contained herein, but treating references therein and in any other defined terms
used in determining Consolidated EBITDA to "the Parent" or "the Issuer" to
instead be references to such Development Asset and without giving effect to
clauses (ii) through (v) of, or the proviso contained in, the definition of
Consolidated EBITDA).

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<PAGE>   12

        "Business Day" means any day except a Saturday, a Sunday or a legal
holiday in New York City.

        "Business Suite Centers" means the business suite centers of the Issuer
or its Subsidiaries listed on Schedule 4.31 and any business suite centers of
the Issuer or its Subsidiaries acquired after the Closing Date.

        "Capital Expenditures" shall have the meaning provided in Section 9.10.

        "Capital Lease," as applied to any Person, shall mean any lease of any
property (whether real, personal or mixed) by that Person as lessee which, in
conformity with generally accepted accounting principles, is accounted for as a
capital lease on the balance sheet of that Person.

        "Capital Stock" means and includes (a) any and all shares, interests,
participations or other equivalents of or interests in (however designated)
corporate stock, including shares of preferred or preference stock, (b) all
partnership interests (whether general or limited) in any Person which is a
partnership, (c) all membership interests or limited liability company interests
in any limited liability company, and (d) all equity or ownership interests in
any Person of any other type.

        "Capital Trust" has the meaning specified in the introductory paragraph
to this Agreement.

        "Capitalized Lease Obligations" of any Person shall mean all rental
obligations under Capital Lease, in each case taken at the amount thereof
accounted for as Indebtedness in accordance with generally accepted accounting
principles.

        "CarrAmerica" has the meaning specified in the Recitals to this
Agreement.

        "Carr Stockholders Agreement" means the Stockholders Agreement, dated as
of the Closing Date, by and among FrontLine, the Parent, CarrAmerica Realty
Corporation and the other stockholders of Issuer named therein.

        "Cash Equivalents" means as to any Person, (i) securities issued or
directly and fully guaranteed or insured by the United States or any agency or
instrumentality thereof (provided that the full faith and credit of the United
States is pledged in support thereof) having maturities of not more than six
months from the date of acquisition, (ii) time deposits and certificates of
deposit of any commercial bank organized under the laws of the United States,
any State thereof or the District of Columbia having, or which is the principal
banking subsidiary of a bank holding company organized under the laws of the
United States, any State thereof, or the District of Columbia having, capital,
surplus and undivided profits aggregating in excess of $200,000,000 and having a
long-term unsecured debt rating of at least "A" or the equivalent thereof from
Standard & Poor's Corporation ("S&P") or "A2" or the equivalent thereof from
Moody's Investors Service, Inc. ("Moody's"), with maturities of not more than
six months from the date of acquisition by such Person, (iii) repurchase
obligations with a term of not more than

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<PAGE>   13

seven days for underlying securities of the types described in clause (i) above
entered into with any bank meeting the qualifications specified in clause (ii)
above, (iv) commercial paper issued by any Person incorporated in the United
States rated at least A-1 or the equivalent thereof by S&P or at least P-1 or
the equivalent thereof by Moody's and in each case maturing not more than six
months after the date of acquisition by such Person, (v) investments in money
market funds substantially all of whose assets are comprised of securities of
the types described in clauses (i) through (iv) above.

        "Casualty" means any actual or constructive loss of any Property of any
Credit Party by reason of fire, explosion, theft or other casualty.

        "Certified" when used with respect to any financial information of any
Person to be certified by any of its officers, indicates that such information
is to be accompanied by a certificate to the effect that such financial
information has been prepared in accordance with GAAP consistently applied,
subject in the case of interim financial information to normal year-end audit
adjustments and absence of the footnotes required by GAAP, and presents fairly,
in all material respects, the information contained therein as at the dates and
for the periods covered thereby.

        "Change of Control" means any transaction or event as a direct or
indirect result of which (a) FrontLine shall fail to have record and beneficial
ownership of at least 30% of the outstanding Voting Stock of the Parent on a
fully diluted basis, (b) any "person" or "group" (as such terms are used in
Sections 13(d) and 14(d) of the Exchange Act), shall become the "beneficial
owner" (as defined in Rules 13(d)-3 and 13(d)-5 under the Exchange Act),
directly or indirectly, of more of the outstanding Voting Stock of the Parent,
on a fully diluted basis, than that owned beneficially and of record by
Frontline, (c) (i) at any time prior to the consummation of a Qualified Public
Offering FrontLine shall cease to have the power to appoint or elect or to
control a majority of the seats of the Board of Directors of the Parent or (ii)
at any time after the consummation of a Qualified Public Offering any "person"
or "group" (as such terms are used in Sections 13(d) and 14(d) of the Exchange
Act) shall have the power to appoint or elect or to control more of the seats of
the Board of Directors of the Parent than FrontLine has the power to appoint or
elect or to control; or (d) the Parent shall own less than 100% of the
outstanding shares of Capital Stock of, or shall no longer control, the Issuer.
For purposes of this definition, "control" of a Person shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of its management or policies, whether through the ownership of voting
securities, by contract or otherwise.

        "Charge" and "Charges" includes all present and future taxes, surtaxes,
duties, levies, imposts, rates, fees, assessments, withholdings and other
charges of any nature (including income, corporate, capital (including large
corporations), net worth, sales, consumption, use, transfer, goods and services,
value-added, stamp, registration, franchise, withholding, payroll, employment,
health, education, employment insurance, pension, excise, business, school,
property, occupation, customs, anti-dumping and countervail taxes, surtaxes,
duties, levies, imposts, rates, fees, assessments, withholdings and other
charges) imposed by any Governmental Body, together with any fines, interest,

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<PAGE>   14

penalties or other additions on, to, in lieu of, for non-collection of or in
respect of those taxes, surtaxes, duties, levies, imposts, rates, fees,
assessments, withholdings and other charges.

        "Chase" has the meaning specified in the introductory paragraph to this
Agreement.

        "Class C Common Stock" means the class C nonvoting common stock, $.01
par value, of the Parent.

        "Closing Date" has the meaning specified in Section 2.4.

        "Code" means the Internal Revenue Code of 1986, as amended.

        "Common Stock" means the voting common stock, $.01 par value, of the
Parent.

        "Company Competitor" means Regus Business Corp., Servcorp. Limited or
any other Person that engages, directly or indirectly, primarily in activities
in the executive suites business (other than the conference center business) or
for whom the executive suites business is one of its primary businesses.

        "Consolidated EBIT" shall mean, for any period, the Consolidated Net
Income before interest income, Consolidated Interest Expense and provision for
taxes and without giving effect to any extraordinary gains or losses or gains or
losses from sales of assets.

        "Consolidated EBITDA" for any period shall mean Consolidated EBIT,
adjusted by adding thereto (i) the amount of all amortization of intangibles and
depreciation that was deducted in arriving at Consolidated Net Income for such
period, (ii) interest income of the Parent and its Subsidiaries during such
period, (iii) in the case of the Test Period ended September 30, 2000, (x)
Merger and Integration Costs incurred by the Parent and its Subsidiaries during
such Test Period to the extent the aggregate amount of such Merger and
Integration Costs do not exceed $2,350,000 and (y) an adjustment for specified
synergies acceptable to the Required Purchasers of up to $3,500,000, and (iv)
(I) in the case of the Test Period ended December 31, 2000, (x) Merger and
Integration Costs incurred by the Parent and its Subsidiaries during the fiscal
quarter of the Parent ended December 31, 2000 to the extent the aggregate amount
of such Merger and Integration Costs do not exceed $4,700,000 and (y) an
adjustment for specified synergies acceptable to the Required Purchasers of up
to $7,000,000, and (II) in the case of the Test Period ended March 31, 2001, (x)
Merger and Integration Costs incurred by the Parent and its Subsidiaries during
such Test Period to the extent the aggregate amount of such Merger and
Integration Costs do not exceed $2,350,000 and (y) an adjustment for specified
synergies acceptable to the Required Purchasers of up to $3,500,000, and (v) net
losses resulting from the Development Assets held by the Parent during such
period, and adjusted further for any increase or decrease in accrued rent
liabilities during such period; provided, however, that (I) for purposes of
determining compliance with Sections 9.14(a) and (b), all calculations of
Consolidated EBITDA for the Test Period then last

                                       7
<PAGE>   15

ended prior to the date of determination shall include contributions from
Permitted Acquisitions made following the first day of the respective Test
Period, (II) for purposes of determining compliance with Section 9.14(c) and for
determining the Total Leverage Ratio for purposes of this Agreement, all
calculations of Consolidated EBITDA for the Test Period then last ended prior to
the date of determination shall be determined by taking Consolidated EBITDA for
such Test Period as determined pursuant to this definition (but excluding
contributions from Permitted Acquisitions made following the first day of the
respective Test Period) multiplied by 2 (or, in the case of the Test Period
ended September 30, 2000, by 4), (III) for purposes of determining compliance
with Section 9.14(c) and for determining the Total Leverage Ratio for purposes
of this Agreement, calculations of Consolidated EBITDA shall be made on a Pro
Forma Basis in accordance with the requirements of the definition thereof, (IV)
[intentionally omitted], (V) for determinations of Consolidated EBITDA for all
purposes of this Agreement, Discounted Domestic Consolidated EBITDA shall be
excluded in determining Consolidated EBITDA to the extent that such Discounted
Domestic Consolidated EBITDA exceeds 10% of Consolidated EBITDA (determined in
accordance with this definition as if this clause (V) were not applicable), it
being understood and agreed, however, that to the extent that any portion of
Consolidated EBITDA which constituted Discounted Domestic Consolidated EBITDA
during any Test Period for which compliance with Section 9.14(a) or (b) is being
determined ceases to be Discounted Domestic Consolidated EBITDA as at the end of
such Test Period, then the amount of such Discounted Domestic Consolidated
EBITDA shall be included for the entire Test Period, and (VI) for determinations
of Consolidated EBITDA for all purposes of this Agreement, Excluded
International Consolidated EBITDA shall be excluded in determining Consolidated
EBITDA to the extent that such Excluded International Consolidated EBITDA
exceeds 25% of the Consolidated EBITDA (determined in accordance with this
definition as if this clause (VI) were not applicable).

        "Consolidated Indebtedness" shall mean, at any time, all Indebtedness of
the Parent and its Subsidiaries determined on a consolidated basis (excluding
all Indebtedness of the type described in clause (vii) of the definition
thereof, except to the extent amounts are owing with respect thereto upon the
termination of the respective agreement constituting such Indebtedness) plus any
original issue discount attributable to such Indebtedness minus cash on hand and
Cash Equivalents of the Parent and its Subsidiaries at such time (excluding cash
and Cash Equivalents collateralizing Existing Letters of Credit pursuant to the
Existing L/C Cash Collateral Arrangements); provided that the term "Consolidated
Indebtedness" as used herein shall not include any Contingent Obligation of the
Parent or any of its Subsidiaries in respect of the Master Leases.

        "Consolidated Interest Expense" shall mean, for any period, the total
consolidated interest expense of the Parent and its Subsidiaries for such period
(calculated without regard to any limitations on the payment thereof) payable
during such period in respect of all Indebtedness of the Parent and its
Subsidiaries, on a consolidated basis, for such period (including, without
duplication, that portion of Capitalized Lease Obligations of the Parent and its
Subsidiaries representing the interest factor for such period); provided

                                       8
<PAGE>   16

that the term "Indebtedness" as used herein shall not include any Contingent
Obligation of the Parent or any of its Subsidiaries in respect of the Master
Leases.

        "Consolidated Net Income" shall mean, for any period, net income of the
Parent and its Subsidiaries for such period determined on a consolidated basis
(after provision for taxes); provided, however, (x) the net income of any
Subsidiary of the Parent, which is not a Wholly-owned Subsidiary, shall have its
net income included in the Consolidated Net Income of the Parent and its
Subsidiaries only (i) to the extent of the amount of such net income
corresponding to the Issuer's ownership percentage interest in such Subsidiary
and (ii) if there are no restrictions or limitation whether by law, contractual
or otherwise to pay the dividends or distributions under the preceding clause
(i) hereto to the Issuer and (y) except to the extent expressly required by the
definition of "Consolidated EBITDA" or "Pro Forma Basis", the net income (or
loss) of any Person accrued prior to the date it becomes a Subsidiary or all or
substantially all of the property or assets of such Person are acquired by a
Subsidiary shall be excluded in computing Consolidated Net Income.

        "Contingent Obligations" means, as to any Person, any obligation of such
Person guaranteeing or intended to guarantee any Indebtedness, leases, dividends
or other obligations ("primary obligations") of any other Person (the "primary
obligor") in any manner, whether directly or indirectly, including, without
limitation, any obligation of such Person, whether or not contingent, (i) to
purchase any such primary obligation or any property constituting direct or
indirect security therefor, (ii) to advance or supply funds (x) for the purchase
or payment of any such primary obligation or (y) to maintain working capital or
equity capital of the primary obligor or otherwise to maintain the net worth or
solvency of the primary obligor, (iii) to purchase property, securities or
services primarily for the purpose of assuring the owner of any such primary
obligation of the ability of the primary obligor to make payment of such primary
obligation or (iv) otherwise to assure or hold harmless the holder of such
primary obligation against loss in respect thereof; provided, however, that the
term Contingent Obligation should not include endorsements of instruments for
deposit or collection in the ordinary course of business. The amount of any
Contingent Obligation shall be deemed to be an amount equal to the stated or
determinable amount of the primary obligation in respect of which such
Contingent Obligation is made or, if not stated or determinable, the maximum
reasonably anticipated liability in respect thereof (assuming such Person is
required to perform thereunder) as determined by such Person in good faith.

        "Credit Parties" means, collectively, the Parent, the Issuer and their
respective Subsidiaries. For purposes of Section 4 prior to consummation of the
Transactions on the Transaction Date, the term "Credit Parties" includes Vantas.

        "Default" means any event or condition which, with due notice or lapse
of time or both, would become an Event of Default.

        "Development Assets" shall mean the assets set forth on Schedule 1.1B
hereto (provided that at the time of any contribution by the Parent to the
Issuer of a

                                       9
<PAGE>   17

Development Asset pursuant to Section 9.4(d), such Schedule shall be
automatically amended to delete therefrom the Development Asset so contributed).

        "Discounted Domestic Consolidated EBITDA" shall mean, for any period,
any portion of Consolidated EBITDA (determined without regard to clause (V) of
the proviso to the definition thereof) for such period relating to the Parent or
any Subsidiary of the Parent which is party to a Lease in which any Person has a
first Lien which is superior to any Lien created or purported to be created
pursuant to any Senior Loan Document.

        "Disqualified Stock" means any Capital Stock which, by its terms (or by
the terms of any security into which it is convertible or for which it is
exchangeable), or upon the happening of any event, (a) matures (excluding any
maturity as the result of an optional redemption by the issuer thereof) or is
mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, or
is redeemable at the option of the holder thereof, in whole or in part, on or
prior to the first anniversary of the Maturity Date, or (b) is convertible into
or exchangeable (unless at the sole option of the issuer thereof) for (i) debt
securities or (ii) any capital stock referred to in (a) above, in each case at
any time prior to the first anniversary of the Maturity Date.

        "Dollars" and "$" means lawful money of the United States of America.

        "Domestic Subsidiary" means any Subsidiary of the Issuer that is not a
Foreign Subsidiary.

        "Eligible Transferee" means (a) a Person that is a "qualified
institutional buyer" as such term is defined in Rule 144A under the Securities
Act; or (b) a Person that is an "accredited investor" as defined in Rule
501(a)(1), (2), (3) or (7) under the Securities Act that has assets valued in
excess of $50,000,000 or has had gross sales during the prior 12-month period of
greater than $50,000,000 so long as the transfer of Notes to such Person under
this clause (b) is pursuant to an exemption from registration under the
Securities Act as supported by such certificates, opinions and other
documentation as the Issuer may reasonably request.

        "Employment Agreement" shall have the meaning specified in Section 5.20.

        "Environmental Laws" means any and all federal, state, local, and
foreign Statutes, Orders, permits, authorizations, concessions, grants,
franchises, licenses, agreements or governmental restrictions relating to
pollution, the protection of the environment or the generation, treatment,
storage, handling, processing, use, maintenance, recycling, transportation,
release, destruction or disposal of Hazardous Materials, including the
Comprehensive Environmental Response, Compensation, and Liability Act, the
Resource Conservation and Recovery Act, the Emergency Planning and Community
Right-to-Know Act, the Safe Drinking Water Act, the Hazardous Materials
Transportation Act, the Clean Air Act, the Clean Water Act, the Federal
Insecticide, Fungicide and Rodenticide Act, the Noise Control Act, the
Occupational Safety and Health Act, the Toxic Substances Control Act, any
so-called "Superfund" or "Superlien"

                                       10
<PAGE>   18

law, and any regulation promulgated under any of the foregoing, all as now or at
any time hereafter may be in effect.

        "Environmental Matter" means any claim, investigation, litigation or
administrative proceeding, whether pending or threatened, or judgment or Order
asserted, arising or entered under or pursuant to any Environmental Law, or
relating to any Hazardous Materials, in each case, against any Credit Party, or
affecting their respective operations or any Properties owned, leased, occupied
by or operated by any of them.

        "Equity Documents" means, collectively, the Series A Preferred Stock
Documents, the Exchange Agreement, the Frontline Transaction Contribution
Documents, the Parent's certificate of incorporation (including, without
limitation, the Series A Preferred Stock Certificate of Designations) and all
other agreements, instruments and documents executed pursuant to or in
connection with the Equity Financing, the Equity Rollover or the Frontline
Transaction Contribution, as any of the foregoing may from time to time be
amended, modified or supplemented in accordance with the terms thereof.

        "Equity Financing" has the meaning specified in Section 5.10.

        "Equity Investors" means EOP Operating Limited Partnership, Fortress HQ
LLC, Stichting Pensioenfonds ABP, First Union Real Estate Equity and Mortgage
Investments, CIBC WMC Inc., CIBC Employee Private Equity Fund Partners, AEW
Targeted Securities Fund, L.P., Blackacre Capital Partners, L.P. and Paribas
North America, Inc.

        "Equity Rollover" has the meaning specified in Section 5.10.

        "ERISA" means the Employee Retirement Income Security Act of 1974, as
from time to time amended.

        "ERISA Affiliate" means any corporation or other Person (including any
Credit Party) which is a member of the same controlled group (within the meaning
of Section 414(b) of the Code) of corporations or other Persons as the Parent,
or which is under common control (within the meaning of Section 414(c) of the
Code) with the Parent, or any corporation or other Person which is a member of
an affiliated service group (within the meaning of Section 414(m) of the Code)
with the Parent, or any corporation or other Person which is required to be
aggregated with the Parent pursuant to Section 414(o) of the Code or the
regulations promulgated thereunder.

        "Event of Default" has the meaning specified in Section 10.1.

        "Excess Cash Flow" has the meaning specified in the Senior Loan
Agreement as in effect on the date hereof.

        "Excess Cash Flow Payment Date" shall mean the date occurring 90 days
after the last day of a fiscal year of the Parent (commencing with its fiscal
year ending December 31, 2000).

                                       11
<PAGE>   19

        "Excess Cash Flow Payment Period" shall mean (a) the period from the
Closing Date to and including December 31, 2000 and (b) each fiscal year of the
Parent thereafter.

        "Exchange Act" means the Securities Exchange Act of 1934, as amended, or
any similar federal Statute then in effect, and a reference to a particular
section thereof shall include a reference to the comparable section, if any, of
any such similar federal Statute.

        "Exchange Agreement" means the Exchange Agreement, dated as of the date
hereof, by and between the Parent and FrontLine, as same may be amended,
modified or supplemented from time to time in accordance with the terms hereof
and thereof.

        "Excluded International Consolidated EBITDA" shall mean, for any period,
any portion of Consolidated EBITDA (determined without regard to clause (VI) of
the proviso to the definition thereof) for such period relating to (x)
International Locations of Parent and its Subsidiaries or (y) any Foreign
Subsidiary of the Parent all or any part of whose assets in which the "Secured
Creditors" under (and as defined in) the Senior Loan Agreement do not have a
first perfected security interest (other than an asset subject to a Permitted
Lien).

        "Existing HQ Credit Facility" means the credit facility evidenced by the
Amended and Restated Credit Agreement, dated as of August 27, 1998, among HQ
(formerly, OmniOffices, Inc.), the lenders and agents party thereto, and Morgan
Guaranty, as arranger and lead agent.

        "Existing L/C Back-Stop Arrangements" means the issuance of the
back-stop letters of credit in favor of Paribas and Morgan Stanley pursuant to
the Back-Stop L/C Agreement as contemplated by Section 5.10(j).

        "Existing L/C Back-Stop Documents" means the Back-Stop L/C Agreement,
the L/C Reimbursement Agreements, and all other agreements, documents and
instruments entered into in connection with the Existing L/C Back-Stop
Arrangements, in each case as the same may be amended, modified or supplemented
from time to time in accordance with the terms hereof and thereof.

        "Existing L/C Cash Collateral Arrangements" has the meaning specified in
Section 5.10.

        "Existing Letters of Credit" has the meaning specified in Section
4.9(c).

        "Existing Vantas Credit Facility" means the credit facility evidenced by
the Amended and Restated Credit Agreement, dated as of August 3, 1999, among
Vantas, the lenders party thereto, and Paribas, as agent, which was amended and
restated as of May 31, 2000 in connection with the Transactions pursuant to the
Senior Loan Agreement.

        "Fair Market Value" means what a willing buyer would pay to a willing
seller in an arm's-length transaction.

                                       12
<PAGE>   20

        "Financial Statements" has the meaning specified in Section 4.5(a).

        "First Union L/C Cash Collateral Agreement" has the meaning specified in
Section 5.10

        "Fixed Charge Coverage Ratio" for any period shall mean the ratio of (x)
Consolidated EBITDA less the amount of all cash Capital Expenditures for such
period (other than cash Capital Expenditures made with Retained Excess Cash Flow
during such period in reliance on Section 9.10(d)) to (y) Fixed Charges for such
period.

        "Fixed Charges" for any period shall mean the sum of (i) Consolidated
Interest Expense for such period, (ii) the aggregate principal amount of all
scheduled repayments of Indebtedness (whether or not made) (including the
principal portion of rentals under Capitalized Lease Obligations but excluding
repayment of revolving loans and acquisition loans under the Senior Loan
Agreement not accompanied by a permanent reduction to the commitment relating
thereto, as the case may be) and (iii) taxes paid by the Parent and its
Subsidiaries for such period (including taxes paid during such period by the
Person or business, division or product line acquired by the Issuer or any of
its Subsidiaries pursuant to a Permitted Acquisition during such period;
provided, however, the amount of such taxes shall be audited or otherwise
acceptable to the Required Purchasers and provided further, that if the Required
Purchasers have not notified the Issuer on or prior to the fifth day prior to
the consummation of the Permitted Acquisition that the Required Purchasers are
not satisfied with the amount of such taxes, the Required Purchasers shall be
deemed to be so satisfied).

        "Foreign Benefit Event" means, with respect to any Foreign Pension Plan,
(a) the existence of unfunded liabilities in excess of the amount permitted
under any applicable law, or in excess of the amount that would be permitted
absent a waiver from a Governmental Body; (b) the failure to make the required
contributions or payments, under any applicable law, on or before the due date
for such contributions or payments; (c) the receipt of a notice by a
Governmental Body relating to the intention to terminate any such Foreign
Pension Plan or to appoint a trustee or similar official to administer any such
Foreign Pension Plan, or alleging the insolvency of any such Foreign Pension
Plan; (d) the incurrence of any liability in excess of $250,000 (or the
equivalent thereof in another currency) by the Parent, the Issuer or any of
their Subsidiaries under applicable law on account of the complete or partial
termination of such Foreign Pension Plan or the complete or partial withdrawal
of any participating employer therein; or (e) the occurrence of any transaction
that is prohibited under any applicable law and could reasonably be expected to
result in the incurrence of any liability by the Parent, the Issuer or any of
their Subsidiaries, or the imposition on the Parent, the Issuer or any of their
Subsidiaries of any fine, excise tax or penalty resulting from any noncompliance
with any applicable law, in each case in excess of $250,000 (or the equivalent
thereof in another currency).

        "Foreign Pension Plan" means any plan, fund (including any
superannuation fund) or other similar program established or maintained outside
the United States by the Parent, the Issuer or any one or more of their
Subsidiaries primarily for the benefit of

                                       13
<PAGE>   21

employees of the Parent or its Subsidiaries residing outside the United States,
which plan, fund or other similar program provides, or results in, retirement
income, a deferral of income in contemplation of retirement or payments to be
made upon termination of employment, and which plan is not subject to ERISA or
the Code.

         "Foreign Subsidiary" means any Subsidiary of the Issuer that is
incorporated or organized under the laws of any jurisdiction other than the
United State of America, any State thereof, the United States Virgin Islands or
Puerto Rico.

         "Four Quarter Calculation Period" shall have the meaning provided in
Section 8.12(a)(vi).

         "FrontLine" has the meaning specified in the Recitals to this
Agreement.

         "FrontLine Indemnification Contribution Agreement" has the meaning
specified in Section 8.13.

          "FrontLine Transaction Contribution" has the meaning specified in
Section 5.10.

         "FrontLine Transaction Contribution Documents" means the agreements,
documents and instruments entered into in connection with the FrontLine
Transaction Contribution, in each case as the same may be amended, modified or
supplemented from time to time in accordance with the terms hereof and thereof.

         "GAAP" means generally accepted accounting principles as in effect from
time to time in the United States of America, applied on a consistent basis both
as to classification of items and amounts.

         "Governmental Body" means any federal, state, provincial, county, city,
town, village, municipal or other government or governmental department,
commission, council, board, bureau, agency, authority or instrumentality, of or
within the United States of America or its territories or possessions, or of or
within any other country, or of any international community established by
treaty.

         "Guarantee" means a Guarantee in the form of Exhibit B, to be executed
and delivered by (i) the Parent, (ii) any Domestic Subsidiaries thereof (other
than the Issuer) existing on the Closing Date pursuant to Section 5.10, (iii)
any Person which becomes a Domestic Subsidiary of the Parent (other than the
Issuer) after the Closing Date, and (iv) any other Subsidiary of the Parent
(other than the Issuer) to the extent required by Section 8.5(b).

         "Guarantors" means collectively (i) the Parent, (ii) each Domestic
Subsidiary of the Parent (other than the Issuer) on the Closing Date, and (iii)
each other Subsidiary of the Parent that is required to become a party to the
Guarantee pursuant to Section 8.5(b) or otherwise that hereafter executes and
delivers a Guarantee in accordance with the terms of this Agreement, and, in
each case, their respective successors and permitted assigns.

                                       14
<PAGE>   22

         "Hazardous Material" and "Hazardous Materials" means the following: (a)
any "hazardous substance" as defined in, or for purposes of, the Comprehensive
Environmental Response, Compensation and Liability Act, 42 U.S.C.A. " 9601 and
9602 et seq., as may be amended from time to time, or any other so-called
"superfund" or "superlien" law and any judicial interpretation of any of the
foregoing; (b) any "regulated substance" as defined pursuant to 40 C.F.R. Part
280; (c) any "pollutant or contaminant" as defined in 42 U.S.C.A ' 9601(33); (d)
any "hazardous waste" as defined in, or for purposes of, the Resource
Conservation and Recovery Act; (e) any "hazardous chemical" as defined in 29
C.F.R. Part 1910; (f) any "hazardous material" as defined in, or for purposes
of, the Hazardous Materials Transportation Act; and (g) any other substance,
regardless of physical form, or form of energy or pathogenic agent that is
subject to any other law or requirement of any Governmental Body regulating,
relating to, or imposing obligations, liability, or standards of conduct
concerning the protection of human health, plant life, animal life, natural
resources, Property or the reasonable enjoyment of life or Property from the
presence in the environment of any solid, liquid, gas, odor, pathogen or form of
energy, from whatever source. Without limiting the generality of the foregoing,
the term "Hazardous Material" includes, but is not limited to, any material,
waste or substance that contains petroleum or any fraction thereof, asbestos, or
polychlorinated biphenyls, or that is flammable, explosive or radioactive.

         "Highbridge" has the meaning specified in the introductory paragraph to
this Agreement.

         "HQ" has the meaning specified in the Recitals to this Agreement.

         "HQ Merger" has the meaning specified in the Recitals to this
Agreement.

         "HQ Merger Agreement" has the meaning specified in the Recitals to this
Agreement.

         "HQ Stock Purchase" has the meaning specified in the Recitals to this
Agreement.

         "HQ Stock Purchase Agreement" has the meaning specified in the Recitals
to this Agreement.

         "Indebtedness" with respect to any Person means, without duplication:
(i) all indebtedness (including principal, interest, fees and charges) of such
Person for borrowed money or for the deferred purchase price of property or
services other than trade payables included in current liabilities in accordance
with GAAP and incurred in respect of Property or services purchased in the
ordinary course of business and which obligation is payable on terms no longer
than 180 days past the invoice date, (ii) the maximum amount available to be
drawn under all letters of credit issued for the account of such Person and all
unpaid drawings in respect of such letters of credit, (iii) all Indebtedness of
the types described in clause (i), (ii), (iv), (v), (vi), (vii) or (viii) of
this definition secured by any Lien on any property owned by such Person,
whether or not such Indebtedness has been assumed by such Person, (iv) all
Capitalized Lease Obligations of such Person, (v) all obligations of such Person
to pay a specified purchase price for goods or services,

                                       15
<PAGE>   23

whether or not delivered or accepted, i.e., take-or-pay and similar obligations,
(vi) all Contingent Obligations of such Person and (vii) all obligations under
any Interest Rate Protection or Other Hedging Agreement or under any similar
type of agreement entered into with a Person not a "Bank" (or any Affiliate
thereof) under the Senior Loan Agreement; provided, however, that so long as the
Existing L/C Back-Stop Arrangements and or the Existing L/C Cash Collateral
Arrangements remain in effect with respect to all Existing Letters of Credit
which have not been incorporated as an "A Letter of Credit" under and as defined
in the Senior Loan Agreement, the amount available to be drawn under any
Existing Letters of Credit issued for the account of the Issuer or any of its
Subsidiaries and all unpaid drawings in respect of such Existing Letters of
Credit shall not be considered Indebtedness until such Existing Letter of Credit
is incorporated as an "A Letter of Credit" under and as defined in the Senior
Loan Agreement.

         "Indemnification Agreement" means the Indemnification and Escrow
Agreement, dated as of June 1, 2000, by and among FrontLine, CarrAmerica, the
other shareholders, warrantholders and optionees of HQ party thereto, and
Citibank, N.A., as escrow agent.

         "Intellectual Property" of any Person means:

                  (a) all trademarks, trade names, trade styles, service marks,
         logos, emblems, prints and labels, all elements of package or trade
         dress of goods, and all general intangibles of like nature, of such
         Person, together with the goodwill of such Person's business connected
         with the use thereof and symbolized thereby, and all applications,
         registrations and recordings thereof, including applications,
         registrations and recordings in the United States Patent and Trademark
         Office or in any similar office or agency of the United States of
         America or in any office of the Secretary of State (or equivalent) of
         any state thereof, or in any similar office or agency of any country or
         political subdivision thereof throughout the world, together with all
         extensions, renewals and corrections thereof and all licenses thereof
         or pertaining thereto, including all License Agreements with respect
         thereto (collectively the "Marks"),

                  (b) all letters patent of such Person and applications
         therefor, and all registrations and recordings thereof, including
         applications, registrations and recordings in the United States Patent
         and Trademark Office or in any similar office or agency of the United
         States of America or any state thereof, or in any similar office or
         agency of any country or political subdivision thereof throughout the
         world, together with all re-examinations, reissues, continuations,
         continuations-in-part, divisions, improvements and extensions thereof
         and all licenses and claims for infringement thereof or pertaining
         thereto including all License Agreements with respect thereto, and the
         rights to make, use and sell, and all other rights with respect to, the
         inventions disclosed or claimed therein, all inventions, designs,
         proprietary or technical information, know-how, other data or
         information, software, databases, all embodiments or fixations thereof,
         and all other trade secret rights not described above,

                                       16
<PAGE>   24

                  (c) all copyrights of such Person in works of authorship of
         any kind, and all applications, registrations and recordings thereof in
         the Office of the United States Register of Copyrights, Library of
         Congress, or in any similar office or agency of any country or
         political subdivision thereof throughout the world, together with all
         extensions, renewals and corrections thereof and all licenses and
         claims for infringement thereof or pertaining thereto, including all
         License Agreements with respect thereto (collectively, "Copyrights"),

                  (d) all designs, graphics, drawings, pictures, and other
         artwork of such Person or used in any products of such Person
         (collectively, "Designs"), and

                  (e) all customer lists and other records of such Person
         relating to the distribution of products bearing any of the items
         described in subparagraphs (a), (b), (c) or (d) of this definition.

         "Intercompany Agreement" shall mean the Intercompany Agreement, dated
as of December 31, 1998 by and between Alliance National Incorporated and
Reckson Service Industries, Inc.

         "Intercompany Loans" has the meaning specified in Section 9.2(b)(x).

         "Interest Rate Protection Agreements or Other Hedging Agreements" means
with respect to any Person (a) all obligations, contingent or otherwise of such
Person with respect to any interest rate protection agreements (including,
without limitation, any interest rate swap, cap, floor, collar or similar
agreement or arrangement) between such Person and one or more financial
institutions providing for the transfer or mitigation of interest rate or
expense risks either generally or under specific contingencies, (b) all
obligations, contingent or otherwise, of such Person under any foreign exchange
contract, currency swap agreement or other similar agreement or arrangement
designed to protect such Person against fluctuations in currency values, and/or
(c) all other types of hedging agreements.

         "Internal Revenue Service" means the United States Internal Revenue
Service and any successor or similar agency performing similar functions.

         "Investment" when used with reference to any investment of any Person
means any investment of such Person so classified under GAAP, and, whether or
not so classified, includes (i) any Indebtedness owed by any other Person to
such Person, (ii) any Contingent Obligation or other contingent obligation of
such Person of Indebtedness or other obligations of any other Person, and (iii)
any Capital Stock held by such Person in any other Person; and the amount of any
Investment shall be the original principal or capital amount thereof less all
cash returns of principal or equity thereof (and without adjustment by reason of
the financial condition of such other Person).

         "Issuer" has the meaning specified in the first paragraph of this
Agreement.

                                       17
<PAGE>   25

         "Joint Venture" shall mean any Person, other than an individual or a
Wholly-Owned Subsidiary of the Parent, (i) in which the Issuer or a Subsidiary
of the Issuer holds or acquires an ownership interest (whether by way of capital
stock, partnership or limited liability company interest, or other evidence of
ownership) and (ii) which is engaged in a Permitted Business.

         "L/C Reimbursement Agreements" has the meaning specified in Section
5.10.

         "Leaseholds" of any Person means all the right, title and interest of
such Person as lessee or licensee in, to and under Leases or licenses of land,
improvements and/or fixtures.

         "Leases" shall mean any and all leases, tenancies, options, concession
agreements, rental agreements, occupancy agreements, franchise agreements,
client agreements, service agreements, office service agreements, office access
agreements and any other agreements (including, without limitation, all
amendments, extensions, replacements, renewals, modifications and/or guarantees
thereof), whether or not of record and whether now in existence or hereafter,
entered into, affecting the use or occupancy of, or use of services provided at,
all or any portion of any Real Property.

         "License Agreement" with respect to any Person means any agreement
entered into by such Person, whether as licensor or licensee, providing for the
license or use of any Intellectual Property and related or similar rights, and
all rights of such Person in connection with any of the foregoing and in
connection with any agreement related thereto.

         "Lien" means any security interest, mortgage, pledge, hypothec, lien,
claim, charge, prior claim, encumbrance, assignment, regulatory right, trust,
conditional sale or title retention agreement, lessor's interest under a Capital
Lease or analogous instrument, in, of or on any of a Person's Property (whether
held on the date hereof or hereafter acquired), or any signed or filed financing
statement which names such Person as the debtor, or the execution of any
security agreement or the like authorizing any other Person as the secured party
thereunder to file such a financing statement.

         "M Sub" has the meaning specified in the Recitals to this Agreement.

         "Maintenance and Up-Grade Capital Expenditures" shall mean Capital
Expenditures made by the Issuer or any of its Subsidiaries to the extent not
constituting (i) Permitted Acquisitions (including Start-Up Costs) or (ii)
Investments in Joint Ventures made pursuant to Section 9.7(b)(viii).

         "Master Leases" shall mean any and all Leases under which the Parent,
the Issuer, any Subsidiary of the Parent and/or any Joint Venture of any
Subsidiary of the Parent, in its capacity as lessee, sublease, tenant,
subtenant, franchisee, licensee, grantee or otherwise, has been or will
hereafter be granted the right to use or occupy all or any portion of the Real
Property.

                                       18
<PAGE>   26

         "Material Adverse Effect" means any change or changes or effect or
effects that individually or in the aggregate are materially adverse to (a) the
assets, business, operations, income, prospects or condition (financial or
otherwise) of the Parent and the other Credit Parties taken as a whole or (b)
the ability of the Credit Parties, taken as a whole, to fulfill their monetary
obligations under this Agreement or any other Note Document.

         "Material Contracts" means all oral or written supply agreements,
requirements contracts, customer agreements, franchise agreements, license
agreements, distribution agreements, joint venture agreements, asset purchase
agreements, stock purchase agreements, merger agreements, agency or advertising
agreements, leases of real or personal property, credit agreements, loan
agreements, security agreements, pledge agreements, mortgages, trust deeds,
trust indentures, consulting agreements, management agreements, employment
agreements, severance agreements, collective bargaining agreements, employee
benefit plans or arrangements, tax sharing agreements or other contracts,
agreements and commitments to which the Parent or any of its Subsidiaries are
parties, in each case which either (i) has a face amount or otherwise involves
aggregate payments or obligations in excess of $250,000, (ii) if terminated is
reasonably likely to cause a Material Adverse Effect or (iii) is otherwise
material to the business of the Credit Parties taken as a whole.

         "Material Subsidiary" means (a) any Subsidiary of the Parent that would
be a "significant subsidiary" as defined in Article I, Rule 1-02 of Regulation
S-X, promulgated pursuant to the Securities Act, as such regulation is in effect
on the Closing Date or (b) any one or more Subsidiaries of the Parent that (1)
are not otherwise Material Subsidiaries, (2) as to which any event or events
described under Section 10.1(f), (g) or (h) has occurred and is continuing and
(3) would together constitute a Material Subsidiary under clause (a) of this
definition.

         "Maturity Date" means May 31, 2007.

         "Merger and Integration Costs" shall mean certain one-time costs and
expenses incurred by the Parent and its Subsidiaries in connection with the
Acquisitions (including, without limitation, severance and restructuring costs).

         "Merger Documents" means the HQ Merger Agreement, the Second Step
Merger Agreement, the Stock Purchase Agreements, the Indemnification Agreement,
and all escrow agreements, confidentiality agreements, non-compete agreements,
leases, instruments of assignment, employment agreements, management agreements,
sale or transfer of assets, merger certificates and other agreements,
instruments and documents executed pursuant thereto or in connection therewith,
as any of the foregoing may from time to time be amended, modified or
supplemented in accordance with the terms thereof.

         "Mergers" has the meaning specified in the Recitals to this Agreement.

         "Morgan Guaranty" means Morgan Guaranty Trust Company of New York.

                                       19
<PAGE>   27

         "Morgan Guaranty L/C Reimbursement Agreement" has the meaning specified
in Section 5.10.

         "Multiemployer Plan" means a multiemployer plan as defined in Section
3(37) or Section 4001(a)(3) of ERISA or Section 414(f) of the Code contributed
to by the Parent or any of its Subsidiaries or ERISA Affiliates.

         "Non-Subsidiary Joint Venture" shall mean each Joint Venture which is
not a Subsidiary of the Parent.

         "Note" and "Notes" have the meanings specified in Section 2.1(a).

         "Note Documents" means, collectively, this Agreement, the Notes, the
Warrants, the Warrant Holder Agreement, the Registration Rights Agreement, the
Subordination Agreement, the Guarantee and all other agreements, guarantees,
instruments and documents now or hereafter executed and delivered pursuant
thereto or in connection therewith, as any of the foregoing may from time to
time be amended, modified or supplemented in accordance with its terms.

         "Obligations" means, collectively, (a) the obligations of the Issuer to
pay any and all of the unpaid principal of, and interest on (including interest
accruing after the filing of any petition in bankruptcy, or the commencement of
any insolvency, reorganization or like proceeding, relating to the Issuer,
whether or not a claim for postfiling or post-petition interest is allowed in
such proceeding) the Notes, (b) the obligations of the Credit Parties to pay any
and all fees, expenses, costs, indemnities and other amounts, whether direct or
indirect, absolute or contingent, due or to become due, or now existing or
hereafter incurred, which may arise under, out of, or in connection with, this
Agreement, the Notes or the other Note Documents, and (c) the obligations of the
Credit Parties to pay, perform, discharge, observe and comply with any and all
covenants, agreements and other obligations required to be performed,
discharged, observed or complied with by it pursuant to this Agreement, the
Notes or the other Note Documents, including the obligations of the Guarantors
under the Guarantee.

         "Officer's Certificate" means, with respect to any corporation, a
certificate signed by an Authorized Officer of such corporation.

         "Omni Lux" has the meaning specified in the Recitals to this Agreement.

         "Omni Stock Purchase" has the meaning specified in the Recitals to this
Agreement.

         "Omni Stock Purchase Agreement" has the meaning specified in the
Recitals to this Agreement.

         "Omni UK" has the meaning specified in the Recitals to this Agreement.

                                       20
<PAGE>   28

         "Operating Lease" means any lease of real or personal Property (other
than a Capital Lease).

         "Order" means any order, writ, injunction, decree, judgment, award,
determination or written direction or demand of any court, arbitrator or
Governmental Body.

         "Other Senior Indebtedness" has the meaning specified in the
Subordination Agreement.

         "Other Taxes" has the meaning specified in Section 3.4(c).

         "Parent" has the meaning specified in the first paragraph hereof.

         "Paribas" means BNP Paribas (formerly known as Paribas), a French
banking organization acting through its New York Branch.

         "Paribas L/C Reimbursement Agreement" has the meaning specified in
Section 5.10.

         "PBGC" means the Pension Benefit Guaranty Corporation, and any
successor agency or Governmental Body performing similar functions.

         "Pension Plan" means an employee pension benefit plan, as defined in
Section 3(2) of ERISA, excluding any Multiemployer Plans, established,
maintained by or contributed to by any Credit Party or ERISA Affiliates.

         "Permitted Acquisition" shall mean (i) the acquisition by the Issuer or
any of its Wholly-owned Subsidiaries of assets (but not real property other than
interests as lessee under leases of real property) constituting all or
substantially all of a business, business unit, division or product line of any
Person not already a Subsidiary of the Issuer or 100% of the capital stock of
any such Person, although any such acquisition shall only be a Permitted
Acquisition so long as (A) the consideration therefor consists solely of cash on
hand, incurrences of revolving loans under the Senior Loan Agreement, issuances
of Acceptable Common Stock, Seller Preferred Stock, Permitted Seller Notes,
Permitted Earn-Out Debt and the assumption of Capitalized Lease Obligations and
tenant security deposits; (B) the assets acquired, or the business of the Person
whose stock is acquired, shall be in a Permitted Business; (C) those
acquisitions that are structured as asset acquisitions shall be consummated
through a new Subsidiary formed by the Issuer, which shall be a Wholly-owned
Subsidiary of the Issuer, to effect such acquisition and (D) those acquisitions
that are structured as stock acquisitions shall be effected through a purchase
of 100% of the capital stock of such Person by the Issuer or a newly formed
Wholly-owned Subsidiary or through a merger between such Person and a
newly-formed direct Wholly-owned Subsidiary of the Issuer, as the case may be,
so that after giving effect to such merger 100% of the capital stock of the
surviving corporation of such merger is owned by the Issuer and (ii) Start-Up
Costs. Notwithstanding anything to the contrary contained in the immediately
preceding sentence, an acquisition shall be a Permitted

                                       21
<PAGE>   29

Acquisition under this Agreement only if all requirements of Section 8.12 with
respect to Permitted Acquisitions are met with respect thereto.

         "Permitted Acquisition Notice" shall have the meaning provided in
Section 8.12(a)(ii).

         "Permitted Business" shall mean the business of operating executive
office suite centers, which shall include the outsourcing of office operations
both on an on-site and off-site basis and the outsourcing of business support
services for customers or clients of the Issuer or its Subsidiaries.

         "Permitted Earn-Out Debt" shall mean Indebtedness of the Issuer
incurred in connection with a Permitted Acquisition and in accordance with
Section 8.12, which Indebtedness is not secured by any assets of the Parent or
any of its Subsidiaries (including, without limitation, the assets so acquired)
and is only payable by the Issuer upon the passage of time (e.g., non-compete
payments) or in the event certain future performance goals are achieved with
respect to the assets acquired; provided that such Indebtedness shall only
constitute Permitted Earn-Out Debt to the extent the terms of such Indebtedness
expressly limit the maximum potential liability of the Issuer with respect
thereto and all such other terms shall be in form and substance satisfactory to
the Required Purchasers.

         "Permitted Investment" means (a) any Investment in Cash Equivalents
(including any related bank accounts) and (b) any Investment existing on the
Closing Date and set forth in Schedule 4.9B.

         "Permitted Lien" means any of the Liens permitted under Section 9.2.

         "Permitted Quarterly CapEx Amount" shall mean, (i) with respect to any
fiscal quarter (the "specified fiscal quarter") of the Parent, other than the
fiscal quarter ending March 31, 2001, an amount equal to (x) Consolidated EBITDA
for the fiscal quarter ending six months prior to the end of such specified
fiscal quarter less (y) Fixed Charges for the fiscal quarter ending six months
prior to the end of such specified fiscal quarter multiplied by 1.05; and (ii)
for the fiscal quarter ending March 31, 2001, an amount equal to (x)
Consolidated EBITDA for the fiscal quarter ending September 30, 2000 multiplied
by 2.00 less (y) Fixed Charges for the fiscal quarter ending September 30, 2000
multiplied by 2.10 less (z) Capital Expenditures (including Permitted
Acquisitions and Investments in Joint Ventures) which were made during the
fiscal quarter ending December 31, 2000. For purposes of this definition, the
term "Consolidated EBITDA" shall be determined using the definition thereof as
if (i) each reference to "Test Period" in clauses (iii) and (iv) were instead a
reference to the term "fiscal quarter" and (ii) the references to "$4,700,000"
and "$7,000,000" were instead references to "$2,350,000" and "$3,500,000",
respectively.

         "Permitted Refinancing" has the meaning assigned to it in the
Subordination Agreement.

                                       22
<PAGE>   30

         "Permitted Seller Notes" shall mean notes in an aggregate principal
amount of $4,000,000 issued by the Issuer to sellers of stock or assets in a
Permitted Acquisition and issued in accordance with Section 8.12, which notes
may be senior but shall be unsecured and unguaranteed, and shall otherwise be in
form and substance satisfactory to the Purchasers.

         "Person" means and includes an individual, a partnership, a joint
venture, an association, a limited liability company, a corporation, a trust, a
syndicate, an unincorporated organization and any Governmental Body.

         "Plan" and "Plans" means any employee benefit plan as defined in
Section 3(3) of ERISA established, maintained or contributed to for the benefit
of employees of any Credit Party or any ERISA Affiliate.

         "Preferred Stockholders Agreement" means the Stockholders Agreement,
dated as of May 31, 2000, as amended and restated as of the Closing Date, by and
among FrontLine, the Parent, the Issuer and each of the holders of Series A
Preferred Stock named therein.

         "Prepayment Premium" means at any time with respect to any Notes being
prepaid in whole or in part pursuant to Section 3.1(a) during any of the periods
set forth below, subject to the provisions of Section 3.1(b), an amount equal to
the percentage set forth opposite such period of the aggregate principal amount
of the Notes being prepaid at such time:

<TABLE>
<CAPTION>
               Period                           Percentage of Principal
                                                  Amount Being Prepaid
-------------------------------------  ---------------------------------------
<S>                                    <C>
June 1, 2003 to and                                      6.75%
 Including May 31, 2004
June 1, 2004 to and                                      4.50%
 Including May 31, 2005
June 1, 2005 to and                                      2.25%
 Including May 31, 2006
At all times after May 31, 2006                           0.0%
</TABLE>

         "Pro Forma Basis" shall mean, with respect to any Permitted
Acquisition, the calculation of the consolidated results of the Parent and its
Subsidiaries otherwise determined in accordance with this Agreement as if the
respective Permitted Acquisition (and all other Permitted Acquisitions
consummated during the respective Two Quarter Calculation Period or thereafter
and prior to the date of determination pursuant to Section 8.12 or other
applicable provision of this Agreement) had been effected on the first day of
the respective Two Quarter Calculation Period; provided that all calculations
shall take into account the following assumptions:

                  (i) if any Indebtedness is incurred pursuant to the respective
         Permitted Acquisition (or was incurred in any other Permitted
         Acquisition which occurred

                                       23
<PAGE>   31

         during the relevant Two Quarter Calculation Period or thereafter and
         prior to the date of determination) then all such Indebtedness shall be
         deemed to have been outstanding from the first day of the respective
         Two Quarter Calculation Period (and the interest expense associated
         with such Indebtedness, shall be determined at the actual rates
         applicable thereto or which would have been applicable had such debt
         been outstanding for the whole such period and shall be included in
         determining Consolidated Interest Expense on such Pro Forma Basis) and
         all Indebtedness that was outstanding during the Two Quarter
         Calculation Period or thereafter and prior to the date of the Permitted
         Acquisition but not outstanding on the date of the Permitted
         Acquisition shall be deemed to have been repaid in full on the first
         day of the Two Quarter Calculation Period; and

                (ii) (a) all calculations of Acquired EBITDA (and the other
         components of the definition of Consolidated EBITDA included therein)
         shall include only the Consolidated EBITDA of the Parent and its
         Subsidiaries (and the other components of the definition of Acquired
         EBITDA included therein) during the relevant Two Quarter Calculation
         Period and shall not include any Acquired EBITDA (or other components)
         of the Person or business, division or product line being acquired
         pursuant to the Permitted Acquisition unless either (x) such Acquired
         EBITDA of the Person or business, division or product line being
         acquired has been audited for the entire Four Quarter Calculation
         Period by any of the "big five" or (y) in the case of calculations
         based on unaudited financial statements, (i) adjustments to Acquired
         EBITDA with respect to each Permitted Acquisition shall only include
         (A) immediate cost reductions associated with overhead eliminations and
         (B) adjustments to reflect the Issuer's contractual rates for services
         (rather than the former owners' rates) whether additive or deductive to
         Consolidated EBITDA and (ii) the Required Purchasers shall be
         reasonably satisfied with the amounts of Acquired EBITDA (and the other
         components) of such Person or business, division or product line being
         acquired pursuant to the respective Permitted Acquisition; provided,
         however, that so long as the Issuer has furnished the Required
         Purchasers all relevant information with respect to the amount of
         Acquired EBITDA of such Person or business, division or product line
         being acquired pursuant to the respective Permitted Acquisition, if the
         Required Purchasers have not notified the Issuer on or prior to the
         fifth day prior to the consummation of the Permitted Acquisition that
         the Required Purchasers are not satisfied with the amount of Acquired
         EBITDA, the Required Purchasers shall be deemed for purposes of this
         clause (ii) to be so satisfied.

         "Property" with respect to any Person, means any interest in any kind
of property or asset, whether real, personal or mixed, tangible or intangible,
of such Person.

         "Purchaser" and "Purchasers" has the meaning specified in the first
paragraph of this Agreement.

         "Qualified Public Offering" means an initial public offering and sale
of Common Stock of the Parent for cash (i) pursuant to which the Parent and/or
selling stockholders

                                       24
<PAGE>   32

shall receive gross cash proceeds (before deducting underwriter's discounts and
commissions) in an aggregate amount of at least $100,000,000, (ii) which is
underwritten on a firm commitment basis by a nationally recognized investment
banking firm, (iii) in which such Common Stock is distributed beneficially to at
least 100 Persons, and (iv) which is made pursuant to an effective registration
statement on form S-1 under the Securities Act or any successor form thereto,
whether such Common Stock is registered for sale for the Parent's own account or
for the account of any selling stockholder.

         "Qualified Public Offering Prepayment Premium" has the meaning
specified in Section 3.1(b).

         "Real Property" of any Person shall mean all the right, title and
interest of such Person in and to land, improvements and fixtures, including
Leaseholds.

         "Refinancing" means the repayment in full of, and the termination of
any commitment to make extensions of credit under, all of the outstanding
Indebtedness of Vantas and the Issuer and their respective Subsidiaries
(including without limitation Indebtedness under the HQ Credit Facility), other
than (x) Existing Letters of Credit, (y) the Existing Vantas Credit Facility and
(z) Capital Leases set forth on Schedule 4.9A.

         "Refinancing Documents" shall mean all of the agreements, documents and
instruments entered into in connection with the Refinancing (including the L/C
Reimbursement Agreements and the Existing L/C Back-Stop Documents).

         "Registration Rights Agreement" means the Registration Rights Agreement
dated as of the Closing Date among the Issuer and the Purchasers providing for
registration rights in respect of the Notes.

         "Regulation S-X" shall mean Regulations S-X under the Securities Act.

         "Reorganization" has the meaning specified in Section 5.10.

         "Reportable Event" means any of the events set forth in Section 4043(b)
of ERISA or the regulations thereunder for which the 30-day notice requirement
is not waived.

         "Required Purchasers" means, as of any date, the Purchasers holding at
least 66-2/3% of the aggregate principal amount of the Notes outstanding on such
date; provided that any Notes held by the Parent or any of its Subsidiaries or
Affiliates shall be excluded.

         "Restricted Payment" means, with respect to any Person,

               (a) the declaration or payment of any dividend or other
distribution on, or the incurrence of any liability to make any other payment in
respect of, Capital Stock of such Person (other than one payable solely in
common stock of such Person),

                                       25
<PAGE>   33

              (b) any payment or distribution by such Person on account of the
purchase, redemption, defeasance (including in-substance or legal defeasance) or
other retirement of any Capital Stock of such Person, or of any warrant, option
or other right to acquire such Capital Stock (whether directly or indirectly,
and including any purchase or other acquisition of such Capital Stock, or of any
warrant, option or other right to acquire such Capital Stock, by any Subsidiary
of such Person),

              (c) any other payment or distribution by such Person in respect of
its Capital Stock, whether directly or indirectly or through any Subsidiary of
such Person (other than one payable solely in common stock of such Person), and

              (d) any payment or distribution by such Person on account of the
principal of or prepayment charge, if any, or interest or other amounts, with
respect to any Subordinated Indebtedness, other than any payment or distribution
which is expressly permitted by the subordination agreement to which the
Purchasers are parties relating to such Indebtedness.

The amount of any Restricted Payment made in the form of Property shall be
deemed to be the greater of the Fair Market Value or the net book value of such
Property.

         "Retained Excess Cash Flow" shall mean the portion of Excess Cash Flow
of the Parent and its Subsidiaries which is permitted to be retained by the
Parent and its Subsidiaries pursuant to Section 3.02(A)(g) of the Senior Loan
Agreement as in effect on the date hereof.

         "Retained Excess Cash Flow Amount" shall initially mean $0, which
amount shall be (x) increased on each Excess Cash Flow Payment Date so long as
any repayment required pursuant to Section 3.02(A)(g) of the Senior Loan
Agreement as in effect on the date hereof has been made, by an amount equal to
25% of Excess Cash Flow for the immediately preceding Excess Cash Flow Payment
Period and (y) reduced (i) on each Excess Cash Flow Payment Date where Excess
Cash Flow for the immediately preceding Excess Cash Flow Payment Period is a
negative number, by such amount and (ii) at any time a Capital Expenditure is
made pursuant to Section 9.10(d), by the amount thereof.

         "SEC" means the United States Securities and Exchange Commission and
any successor agency, authority, commission or Governmental Body.

         "Second Step Merger" has the meaning specified in the Recitals to this
Agreement.

         "Second Step Merger Agreement" has the meaning specified in the
Recitals to this Agreement.

         "Securities Act" means as of any date the Securities Act of 1933, as
amended, or any similar federal Statute then in effect, and a reference to a
particular section thereof shall include a reference to the comparable section,
if any, of any such similar federal Statute.

                                       26
<PAGE>   34

         "Seller Preferred Stock" shall mean any preferred stock of the Parent
issued in connection with a Permitted Acquisition in accordance with Section
8.12, the express terms of which shall provide that dividends thereon shall not
be required to be paid at any time (and to the extent) that such payment would
be prohibited by the terms of this Agreement or any other agreement of the
Parent or any of its Subsidiaries relating to outstanding indebtedness and
which, by its terms (or by the terms of any security into which it is
convertible or for which it is exchangeable), or upon the happening of any event
(including any change of control event), cannot mature (excluding any maturity
as the result of an optional redemption by the issuer thereof) and is not
mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, and
is not redeemable, or required to be repurchased, at the sole option of the
holder thereof (including, without limitation, upon the occurrence of a change
of control event), in whole or in part, on or prior to the tenth anniversary of
the date of issuance of such Seller Preferred Stock.

         "Senior Agent" means Paribas, in its capacity as administrative agent
and arranger under the Senior Loan Agreement.

         "Senior Bank Debt" has the meaning specified in the Subordination
Agreement.

         "Senior Indebtedness" has the meaning assigned to it in the
Subordination Agreement.

         "Senior Leverage Ratio" shall mean, as at any date of determination,
the ratio of Total Senior Indebtedness at such time to Consolidated EBITDA for
the Test Period most recently ended prior to such date of determination.

         "Senior Loan Agreement" means the Amended and Restated Credit
Agreement, dated as of January 16, 1997, amended and restated as of November 6,
1998, further amended and restated as of August 3, 1999, and further amended and
restated as of May 31, 2000, among the Parent, the Issuer, the lenders party
thereto from time to time, Bankers Trust Company, as syndication agent, Citicorp
Real Estate, Inc., as documentation agent, and BNP Paribas (formerly known as
Banque Paribas), as administrative agent and arranger, as amended (including any
amendment and restatement thereof), modified, supplemented, refinanced,
replaced, extended or restructured from time to time in accordance with the
terms of the Subordination Agreement.

         "Senior Loan Documents" has the meaning assigned to it in the
Subordination Agreement.

         "Senior Subordinated Bridge Loan" means the bridge loan incurred by the
Issuer on the Transaction Date pursuant to, and as defined in, the Senior
Subordinated Credit Agreement.

         "Senior Subordinated Credit Agreement" means that certain Senior
Subordinated Credit Agreement, dated as of May 31, 2000, relating to the Senior
Subordinated Bridge Loan described therein, among the Parent, the Issuer,
various Subsidiaries, UBS Warburg

                                       27
<PAGE>   35

LLC, as arranger and syndication agent, and UBS, Stamford Branch, as
administrative agent and lender, as the same may be amended, modified or
supplemented from time to time in accordance with the terms hereof and thereof.

         "Series A Preferred Stock" means the Parent's Series A Convertible
Cumulative Preferred Stock.

         "Series A Preferred Stock Certificate of Designations" means the
Amended and Restated Certificate of the Designations to the Parent's Certificate
of Incorporation establishing and fixing the rights and preferences of the
Series A Preferred Stock, filed with the Secretary of State of the State of
Delaware on the Closing Date.

         "Series A Preferred Stock Documents" means the Series A Preferred
Stock, the Series A Preferred Stock Original Purchase Agreements, the Series A
Preferred Stock Purchase Agreements, the Series A Preferred Stock Certificate of
Designations and the other agreement, documents and instruments entered into in
connection with the issuance of Series A Preferred Stock, in each case as the
same may be amended, modified or supplemented from time to time in accordance
with the terms hereof and thereof.

         "Series A Preferred Stock Purchase Agreements" means the Purchase
Agreements, dated as of the Closing Date, each among the Parent, FrontLine and
an Equity Investor, in each case as the same may be amended, modified or
supplemented from time to time in accordance with the terms hereof and thereof.

         "Series A Preferred Stock Original Purchase Agreements" means the
Purchase Agreements, dated as of May 31, 2000, each between FrontLine and an
Equity Investor and, with respect to the Purchase Agreement with EOP Operating
Limited Partnership, the Parent, in each case as the same may be amended,
modified or supplemented from time to time in accordance with the terms hereof
and thereof.

         "Solvent" means, with respect to any Person on a particular date that
on such date (a) the fair value of the property of such Person is greater than
the total amount of liabilities (including contingent liabilities) of such
Person, (b) the present fair salable value of the assets of such Person is not
less than the amount that will be required to pay the probable liabilities of
such Person on its debts as they become absolute and mature, (c) such Person
does not intend to, and does not believe that it will, incur debts or
liabilities beyond such Person's ability to pay as such debts and liabilities
mature, and (d) such Person is not engaged in business or a transaction, and it
not about to engage in business or a transaction, for which such Person's assets
would constitute unreasonably small capital. For such purposes, any contingent
liability (including pending litigation, Contingent Obligations, pension plan
liabilities and claims for federal, state, local and foreign taxes, if any) is
valued at the amount that, in light of all the facts and circumstances existing
at such time, represents the amount that can reasonably be expected to become an
actual or matured liability.

                                       28
<PAGE>   36

         "Start-Up Costs" shall mean expenditures incurred by the Issuer or any
of its Subsidiaries for fixturing, security deposits to landlords and working
capital in connection with the opening of new executive office suite centers.

         "Statute" means any statute, ordinance, code, treaty, directive, law,
rule or regulation of any Governmental Body.

         "Stock Purchase Agreements" has the meaning specified in the Recitals
to this Agreement.

         "Stock Purchases" has the meaning specified in the Recitals to this
Agreement.

         "Subordinated Indebtedness" means any Indebtedness of any Credit Party
which is subordinated in right of payment to the prior payment of the
Obligations in a manner satisfactory to the Required Purchasers.

         "Subordination Agreement" has the meaning specified in Section 5.7.

         "Subsidiary" means, with respect to any Person, any corporation or
other entity of which at least a majority of the outstanding Voting Stock is at
the time directly or indirectly owned or controlled by such Person or by one or
more of any entities directly or indirectly owned or controlled by such Person.
For the purposes of this definition, "control" of a Person means the possession,
directly or indirectly, of the power to direct or cause the direction of its
management or policies, whether through the ownership of voting securities, by
contract or otherwise.

         "Surviving HQ" has the meaning specified in the Recitals to this
Agreement.

         "Taking" means, with respect to any Property, the taking of title to,
or the use of all or any part of, such Property pursuant to eminent domain or
condemnation proceedings or by any settlement or compromise of any such
proceedings.

         "Taxes" has the meaning specified in Section 3.4(a).

         "Test Period" shall mean each period of two consecutive fiscal quarters
then last ended, in each case taken as one accounting period; provided that for
purposes of any determination of compliance with Section 9.14 or of the Total
Leverage Ratio for the fiscal quarter ended September 30, 2000, the term "Test
Period" shall mean the period commencing June 30, 2000 and ending on September
30, 2000, taken as one accounting period.

         "Total Leverage Ratio" shall mean, as at any date of determination, the
ratio of Consolidated Indebtedness at such time to Consolidated EBITDA for the
Test Period most recently ended prior to such date of determination.

                                       29
<PAGE>   37

         "Total Senior Indebtedness" shall mean, at any time, the remainder of
(x) Consolidated Indebtedness at such times less (y) the aggregate outstanding
principal amount of the Notes.

         "Transaction Date" means June 1, 2000.

         "Transaction Documents" means, collectively, the Note Documents, the
Merger Documents, the Equity Documents, the FrontLine Transaction Contribution
Documents, the Refinancing Documents and the Senior Loan Documents.

         "Transactions" means, collectively, (i) on the Transaction Date, (a)
the Stock Purchases and the Mergers, (b) the execution and delivery of the
Equity Documents by the parties thereto and the consummation of the Equity
Financing and the Equity Rollover, (c) the Refinancing and the execution and
delivery of the Existing L/C Back-Stop Documents and the First Union L/C Cash
Collateral Agreement, (ii) as of May 31, 2000, the execution and delivery of the
Senior Loan Documents by the parties thereto and the extension of credit
thereunder and the making of the Senior Subordinated Bridge Loan, (iii) on the
Closing Date, (a) the issuance and sale of the Notes and Warrants pursuant to
this Agreement, (b) the refinancing of the Senior Subordinated Bridge Loan, and
(c) the Additional Series A Preferred Stock Investment, (iv) the other
transactions contemplated by the Transaction Documents to occur on or prior to
the Closing Date, and (v) the payment of all fees and expenses to be paid on or
prior to the Closing Date and owing in connection with the foregoing.

         "Two Quarter Calculation Period" shall mean, with respect to any
Permitted Acquisition, the period of two consecutive fiscal quarters (taken as
one accounting period and including any fiscal quarter ending prior to the
Closing Date) most recently ended prior to the date of the consummation of such
Permitted Acquisition.

         "UK/Lux Acquisition" has the meaning specified in Section 5.10.

         "U.S. Person" means a citizen or resident of the United States of
America, a corporation, partnership or other entity created or organized in or
under any laws of the United States of America or of any State thereof, or any
estate or trust that is subject to federal income taxation regardless of the
source of its income.

         "U.S. Taxes" has the meaning specified in Section 3.4(f).

         "Vantas" has the meaning specified in the Recitals to this Agreement.

         "Voting Stock" with respect to any Person means Capital Stock of such
Person of any class or classes, the holders of which are ordinarily, in the
absence of contingencies, entitled to vote for the election of members of the
Board of Directors (or Persons performing similar functions) of such Person.

         "Warrant" and "Warrants" have the meanings specified in Section 2.1(d).

                                       30
<PAGE>   38

         "Warrant Holder Agreement" means that certain Warrant Holder Agreement,
dated as of the Closing Date, among the Purchasers, FrontLine and the Parent.

         "Warrant Stock" means (i) all shares of Common Stock issued or issuable
upon the exercise of any Warrant, and (ii) any securities issued or issuable by
the Parent with respect to shares of Common Stock referred to in the foregoing
clause by way of a stock dividend or stock split or in connection with a
combination or subdivision of shares, reclassification, merger, consolidation or
other reorganization of the Parent.

         "Wholly-owned Subsidiary" means, with respect to any Person, any
Subsidiary of such Person all of the shares of Capital Stock of which, other
than directors' qualifying shares, are owned, beneficially and of record, by
such Person and/or one or more Wholly-owned Subsidiaries of such Person.

               Section 1.2 Accounting Terms. All accounting terms used in this
Agreement shall be applied on a consolidated basis for any Person and its
Subsidiaries, if any, unless otherwise specifically indicated herein. Any
accounting terms not specifically defined herein shall have the meanings
customarily given them in accordance with GAAP.

               Section 1.3 Rules of Construction. The words "herein," "hereof"
and "hereunder" and other words of similar import refer to this Agreement as a
whole and not to any particular Section or subsection. Reference herein to any
Section or subsection refers to such Section or subsection (as the case may be)
hereof. Words in the singular include the plural, and words in the plural
include the singular, and pronouns stated in the masculine, feminine or neuter
gender shall include the masculine, feminine and neuter genders. The words
"including", "includes" and "include" shall be deemed to be followed by the
words "without limitation". Each covenant or agreement contained herein shall be
construed (absent express provision to the contrary) as being independent of
each other covenant or agreement contained herein, so that compliance with any
one covenant or agreement shall not (absent such an express contrary provision)
be deemed to excuse compliance with any other covenant or agreement. Where any
provision herein refers to action to be taken by any Person, or which such
Person is prohibited from taking, such provision shall be applicable whether
such action is taken directly or indirectly by such Person. All references to
any instruments or agreements, including references to any of the Transaction
Documents, shall include any and all modifications or amendments thereto and any
and all extensions or renewals thereof, in each case, made in accordance with
the terms of the Transaction Documents, including this Agreement. All references
to Persons include their respective successors and assigns (to the extent
permitted under the Note Documents). All references to Statutes and related
regulations shall include any amendments of the same and any successor Statutes
and regulations. Whenever any provision in any Note Document refers to the
knowledge (or an analogous phrase) of any Credit Party, such words are intended
to signify that such Credit Party has actual knowledge or awareness of a
particular fact or circumstance or that such Credit Party, if it had exercised
reasonable diligence, would have known or been aware of such fact or
circumstance.

                                       31
<PAGE>   39

         Section 2. Sale and Purchase of Notes and Warrants.

              Section 2.1 Authorization and Issue of Notes and Warrants; Payment
of Interest.

              (a) The Issuer has duly authorized the issuance, sale and delivery
of its 13.5% Senior Subordinated Notes Due 2007 in the aggregate principal
amount of $125,000,000, to be dated the Closing Date, to mature on the Maturity
Date, and to be substantially in the form of Exhibit A hereto (all such Notes
originally issued pursuant to this Agreement, or delivered in substitution or
exchange for any thereof, being collectively called the "Notes" and individually
a "Note").

              (b) The Notes shall bear interest, computed on the basis of a 360
day year and actual days elapsed, from the Closing Date at the rate of 13.5% per
annum until paid in full. Overdue payments of principal of, and (to the extent
permitted by applicable law) interest on, the Notes, and on any other overdue
Obligations, shall bear interest, computed on the basis of a 360 day year and
actual days elapsed, from the due date thereof, at the rate of 15.5% per annum
until paid in full, and shall be payable upon demand.

              (c) Interest shall be payable on the Notes quarterly in arrears on
the last Business Day of each March, June, September and December of each year,
commencing on September 30, 2000, and at maturity.

              (d) The Parent has authorized the issuance, sale and delivery of
its warrants, initially exercisable to purchase an aggregate of up to 730,707.58
shares (subject to adjustment as therein provided) of its authorized but
unissued Common Stock, at an initial exercise price of $.01 per share (subject
to adjustment as therein provided) to be substantially in the form of Exhibit C
hereto attached (all such Warrants originally issued pursuant to this Agreement,
or delivered in substitution or exchange for any thereof, being collectively
called the "Warrants" and individually a "Warrant").

              Section 2.2 Issuance and Sale of Notes and Warrants on the Closing
Date. Subject to the terms and conditions set forth in this Agreement, as
provided in Section 2.4, on the Closing Date (a) the Issuer will issue and sell
to the Purchasers, and the Purchasers will purchase from the Issuer, the Notes
in the aggregate principal amount of $125,000,000, at a purchase price of 100%
of the principal amount thereof, and (b) the Parent shall issue to the
Purchasers, in consideration of their respective purchases of Notes hereunder,
the Warrants.

              Section 2.3 Notes. The Notes issued pursuant hereto shall evidence
the principal amounts of all Notes sold hereunder, and the date and principal
amount of each purchase and sale of Notes to the Purchasers by the Issuer, as
well as each payment or prepayment made on account of the principal thereof, and
in each case the resulting aggregate unpaid principal balance thereof, shall be
recorded by each Purchaser on its books; provided that failure by any Purchaser
to make any such recordation shall not affect the obligations of the Issuer
hereunder or under such Note. Each such recordation

                                       32
<PAGE>   40

by a Purchaser shall be conclusive and binding for all purposes in the absence
of manifest error.

              Section 2.4 Closing. The sale and delivery of the Notes and
Warrants to be issued pursuant to Section 2.2 shall take place at the offices of
Paul, Hastings, Janofsky & Walker LLP, 399 Park Avenue 31st Floor, New York, New
York 10019 at 1:00 P.M., New York time on August 9, 2000 (or such other time and
place as the parties shall agree) (herein called the "Closing Date"). On the
Closing Date, subject to satisfaction of the conditions set forth herein, the
following shall occur:

                 (i) each Purchaser shall deliver to the Issuer immediately
available funds in Dollars in the amount set forth on Annex 1 hereto for such
Purchaser and the Issuer shall deliver to such Purchaser a single Note
representing the Notes registered in such Purchaser's name, duly executed by the
Issuer and dated the Closing Date, in a principal amount equal to the amount so
funded by such Purchaser, and

                 (ii) the Parent will deliver to each Purchaser Warrants to
purchase up to the number of shares of its authorized but unissued Common Stock
(subject to adjustment as therein provided) set forth on Annex 1 hereto for such
Purchaser, in such denominations as such Purchaser shall specify duly executed
and dated the Closing Date.

               Section 2.5 Payments. Each payment by the Issuer hereunder of the
principal amount of the Notes, interest thereon, Prepayment Premium, Qualified
Public Offering Prepayment Premium, fees, costs, expenses, indemnities and other
Obligations due hereunder and under the other Note Documents shall be made in
Dollars by wire transfer or other immediately available funds, without deduction
(except as provided in Section 3.4(b)), set-off or counterclaim, to the
Purchaser entitled to receive such payment at such office or bank account as
shall be specified by such Purchaser from time to time by written notice to the
Issuer, not later than 1:00 P.M. (New York City time) on the date on which such
payment shall become due (each such payment made after such time on such due
date to be deemed to have been made on the next succeeding Business Day).
Whenever any payment hereunder or under the Notes shall be stated to be due on a
day other than a Business Day, that payment shall be made on the next succeeding
Business Day.

               Section 2.6 Fees. On the Closing Date, the Issuer will pay to
each Purchaser a non-refundable structuring fee in an amount in Dollars equal to
1.5% of the aggregate principal amount of the Notes issued by the Issuer on the
Closing Date to such Purchaser.

               Section 2.7 Interest Rate Limitation. Notwithstanding any
provisions of this Agreement, the Notes or the other Note Documents, in no event
shall the amount of interest paid or agreed to be paid by the Issuer exceed an
amount computed at the highest rate of interest permissible under applicable
law. If, from any circumstances whatsoever, fulfillment of any provision of this
Agreement, the Notes or the other Note Documents at the time performance of such
provision shall be due, shall involve exceeding the interest rate limitation
validly prescribed by law which a court of

                                       33
<PAGE>   41

competent jurisdiction may deem applicable hereto, then, ipso facto, the
obligations to be fulfilled shall be reduced to an amount computed at the
highest rate of interest permissible under applicable law, and if for any reason
whatsoever any Purchaser shall ever receive as interest an amount which would be
deemed unlawful under such applicable law such interest shall be automatically
applied to the payment of principal of the Notes outstanding hereunder (whether
or not then due and payable), without prepayment charge, premium or penalty, and
not to the payment of interest, or shall be refunded to the Issuer if such
principal and all other Obligations of the Issuer to such Purchaser have been
paid in full.

               Section 2.8 Allocation of Purchase Price. It is hereby agreed
that, for purposes of Treasury Regulations 1.1273-2(h),(A)(i) the aggregate
"issue price" of the investment unit consisting of the Notes and the Warrants to
be issued pursuant to Section 2.2 of this Agreement on the Closing Date is equal
to 100% of the principal amount of such Notes, (ii) the aggregate fair market
value and aggregate purchase price of the Notes to be issued on the Closing Date
is $108,740,426, and (iii) the aggregate fair market value and aggregate
purchase price of the Warrants is $16,259,574. The Parent, the Issuer and the
Purchasers agree to use the foregoing issue price, purchase prices and fair
market values for U.S. federal income tax purposes with respect to this
transaction (unless otherwise required by a final determination by the Internal
Revenue Service or a court of competent jurisdiction).

               Section 2.9 Subordination. The Notes and all other Obligations of
the Credit Parties under the Note Documents are and shall at all times be and
remain subordinated and subject in right of payment to the extent and in the
manner set forth in the Subordination Agreement to the prior payment in full in
cash of all Senior Indebtedness.

               Section 2.10 Payments Pro Rata. All payments from or on behalf of
the Issuer in respect of principal (including, without limitation, prepayments
pursuant to Section 3.1) or interest owing under the Notes shall be paid to the
Purchasers ratably in accordance with the unpaid principal amounts of the Notes
then outstanding.

         Section 3. Payment and Prepayment of Notes.

               Section 3.1 Optional Prepayments of the Notes.

               (a) Except as otherwise provided in Section 3.1(b), the Notes may
not be prepaid in whole or in part at any time prior to June 1, 2003. On or
after June 1, 2003, upon notice given as provided in Section 3.2, the Issuer, at
its option, may prepay at any time all or from time to time any part (in an
aggregate amount of $1,000,000 or any greater amount which is an even multiple
of $1,000,000, or in an amount equal to the aggregate outstanding principal
balance of the Notes of the Issuer) of the principal amount of Notes, together
with accrued but unpaid interest on the principal amount being prepaid to the
date of such prepayment, plus payment of the applicable Prepayment Premium.

                                       34
<PAGE>   42

               (b) Prior to June 1, 2003, upon notice given as provided in
Section 3.2, the Issuer at its option may prepay within five (5) Business Days
of the consummation of a Qualified Public Offering up to 35% of the aggregate
outstanding principal amount of the Notes, together with accrued but unpaid
interest thereon, plus payment of a prepayment premium equal to 13.5% of the
aggregate principal amount of the Notes being prepaid at such time (the
"Qualified Public Offering Prepayment Premium"); provided that the prepayment is
financed solely with the proceeds of such Qualified Public Offering which
proceeds were, immediately prior to such purchase, contributed by the Parent to
the common equity capital of the Issuer in a manner satisfactory to the Required
Purchasers.

               Section 3.2 Notice of Prepayment of the Notes. The Issuer shall
call Notes for prepayment pursuant to Section 3.1(a) or (b) by giving written
notice thereof to the Purchasers not less than 15 nor more than 60 days prior to
the date fixed for such prepayment. Such notice shall specify (a) the date fixed
for such prepayment, (b) the principal amount to be prepaid on such date, (c)
the amount of accrued interest to be paid or anticipated to be paid on such
date, and (d) the amount of the Prepayment Premium or Qualified Public Offering
Prepayment Premium, if any, to be paid in connection therewith. Notice of
prepayment having been so given, the aggregate principal amount of the Notes so
to be prepaid as specified in such notice, together with interest accrued
thereon to such date fixed for prepayment, plus the applicable Prepayment
Premium or Qualified Public Offering Prepayment Premium, if any, shall become
due and payable on the specified prepayment date.

               Section 3.3 Scheduled Payments. On the Maturity Date, the unpaid
principal balance of the Notes to the extent not sooner paid or prepaid
hereunder, shall be paid in full, together with accrued interest and fees
thereon and all costs, expenses, indemnities and other Obligations outstanding
hereunder or under any other Note Document.

               Section 3.4 Taxes.

               (a) Subject to subsection (b) of this Section 3.4, all payments
by any Credit Party under this Agreement, the Notes or any other Note Document
to each Purchaser shall be made free and clear of and without deduction for any
and all present or future Charges excluding Charges imposed on or measured by
the net income or capital of such Purchaser by the jurisdiction (or a political
subdivision thereof) in which such Purchaser is organized, or in which the
principal office or applicable lending office of such Purchaser is located (all
such non-excluded Charges being hereinafter referred to as "Taxes").

               (b) If any Credit Party shall be required by law to deduct any
Taxes imposed by any taxing authority or other Governmental Body from or in
respect of any sum payable under this Agreement, the Notes or any other Note
Document to any Purchaser, except as provided in subsection (f) of this Section
3.4, the sum payable to the Purchaser shall be increased as may be necessary so
that after making all required deductions (including deductions applicable to
additional sums payable under this Section 3.4), such Purchaser receives an
amount equal to the sum it would have received

                                       35
<PAGE>   43

had no such deductions been required, the Issuer shall make, or cause the
applicable Credit Party to make, such deductions and the Issuer shall pay, or
cause the applicable Credit Party to pay, the full amount deducted to the
relevant taxation authority or other Governmental Body in accordance with
applicable law.

               (c) In addition, to the extent not precluded from doing so
pursuant to applicable law, the Issuer agrees to pay any present or future stamp
or documentary taxes or any other excise or property taxes, charges or similar
levies that arise from any payment made under this Agreement, the Notes or any
other Note Document or from the execution, delivery, enforcement or registration
of, or otherwise with respect to, this Agreement, the Notes or any other Note
Document, other than any transfer taxes payable in connection with a change in
the registered holder of any Notes (hereinafter referred to as "Other Taxes").

               (d) Except as provided in subsection (f) of this Section 3.4, to
the extent not precluded from doing so pursuant to applicable law the Issuer
will indemnify each Purchaser (and in the case of a Purchaser that is a
partnership, each partner of the partnership) for the full amount of Taxes or
Other Taxes imposed by any taxing authority or other Governmental Body and paid
by the Purchaser or partner, as applicable, and any liability (including
penalties, additions to tax, interest and expenses) arising therefrom or with
respect thereto, whether or not such Taxes or Other Taxes were correctly or
legally asserted. This indemnification shall be made within 30 days from the
date a Purchaser or partner, as applicable, makes written demand therefor.

               (e) Within 30 days after the date of any payment of Taxes or
Other Taxes, the Issuer will furnish to the applicable Purchaser the original or
a certified copy of any receipt evidencing payment thereof.

               (f) The Credit Parties shall have no obligation to pay additional
amounts in respect of Taxes imposed by the United States of America or any
taxing authority or other Governmental Body thereof ("U.S. Taxes") on any
Purchaser which is not a U.S. Person pursuant to subsection (b) of this Section
3.4, or to indemnify any Purchaser in respect of such U.S. Taxes pursuant to
subsection (d) of this Section 3.4, if such U.S. Taxes are imposed solely by
reason of such Purchaser's failure (1) to provide the relevant Credit Party,
immediately prior to the time such Person becomes a Purchaser, with two duly
completed copies of United States Internal Revenue Service Form W-8ECI or W-8BEN
or successor applicable form, as the case may be, certifying in each case that
such Purchaser is entitled to receive

                                       36
<PAGE>   44

payments under this Agreement without deduction or withholding of any United
States federal income taxes and Internal Revenue Service Form W-8 or W-9 or
successor applicable form, as the case may be, to establish an exemption from
United States backup withholding tax, or (2) to provide the relevant Credit
Party, on or before the date that any form previously supplied to such Credit
Party pursuant to this Section 3.4(f) expires or becomes obsolete or immediately
subsequent to the occurrence of any event requiring a change in the form most
recently supplied by it to such Credit Party, two further copies of such Form
W-8ECI or W-8BEN and Form W-8 or W-9, or successor applicable forms, certifying
that such Purchaser is entitled to receive payments under this Agreement without
deduction or withholding of any United States federal income taxes and is exempt
from United States backup withholding tax unless a change in treaty, law or
regulation has occurred after the date on which such Purchaser became a party
hereto and prior to the date on which the delivery of the forms required by this
Section 3.4(f)(2) would otherwise be due renders all such forms inapplicable or
prevents such Purchaser from duly completing and delivering any such form and
such Purchaser advises such Credit Party that it is no longer capable of
receiving payments without deduction or withholding.

               (g) Without prejudice to the survival of any other agreement
contained herein, the agreements and obligations contained in this Section 3.4
shall survive the payment in full of principal, interest, fees and any other
amounts payable hereunder (other than amounts payable pursuant to this Section
3.4).

               Section 3.5 Purchase of Notes. No Credit Party will, nor will
they permit any of their Subsidiaries or Affiliates to, acquire directly or
indirectly by purchase or prepayment or otherwise any of the outstanding Notes
or Warrants except (x) by way of payment or prepayment in accordance with the
provisions of such Notes and Warrants and of this Agreement or (y) to the extent
permitted by Section 13.5(c). If any Credit Party or any of their respective
Subsidiaries or Affiliates acquires any Notes pursuant to any such offer in
violation of this Section 3.5 or in any other manner, such Notes shall
thereafter be canceled and shall not be reissued, no Note shall be issued in
substitution therefor, and such Notes shall not be deemed to be outstanding for
any purpose under this Agreement.

         Section 4. Representations and Warranties of the Parent and the Issuer.
Each of the Parent and the Issuer, jointly and severally, represents and
warrants to the Purchasers that:

               Section 4.1 Existence and Power. Each Credit Party and each of
their Subsidiaries is a corporation, limited liability company or limited
partnership duly organized, validly existing and in good standing under the laws
of its jurisdiction of organization and is duly qualified to do business in each
additional jurisdiction where the failure to so qualify is reasonably likely to
have a Material Adverse Effect. Each Credit Party and each of their Subsidiaries
has all requisite organizational power to own its Properties and to carry on its
business as now being conducted and as proposed to be conducted, and to execute,
deliver and perform its obligations under this Agreement, the Notes, the
Warrants and the other Transaction Documents to which it is a party.

               Section 4.2 Authority. The execution, delivery and performance by
each Credit Party of this Agreement, the Notes, the Warrants and the other
Transaction Documents to which it is a party are within its organizational
powers and have been duly authorized by all necessary organizational action on
the part of its Board of Directors (or similar organizational body) and its
stockholders or members, as the case may be.

               Section 4.3 Binding Effect. Each of this Agreement, the Notes,
the Warrants and the other Transaction Documents has been duly executed and
delivered by

                                       37
<PAGE>   45

each Credit Party which is a party thereto and is the legal, valid and binding
obligation of such Credit Party, enforceable against it in accordance with its
respective terms, except as such enforceability may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium, or other laws relative to or
affecting the enforcement of creditors' rights generally in effect from time to
time and by general principles of equity.

               Section 4.4 Capital Stock.

               (a) As of the Closing Date after giving effect to the
Transactions, the authorized and issued shares of each class of Capital Stock of
each Credit Party are as set forth on Schedule 4.4. All of the issued and
outstanding shares of Capital Stock of each Credit Party are validly issued,
fully paid and non-assessable and owned of record by the Persons listed on
Schedule 4.4. As of the Closing Date both before and after giving effect to the
Transactions, all of the issued and outstanding shares of Capital Stock of the
Issuer are validly issued, fully paid and non-assessable and owned of record and
beneficially by the Parent, free and clear of any Liens, other than Liens
permitted by the Senior Indebtedness.

               (b) The shares of Common Stock issuable upon exercise of the
Warrants have been duly and validly reserved for issuance upon such exercise
and, when issued and delivered against payment therefor as provided therein,
will be duly authorized, validly issued, fully paid and non-assessable and
subject to no Liens created by the Parent in respect of the issuance thereof.

               (c) As of the Closing Date, after giving effect to the
Transactions, (i) except as set forth on Schedule 4.4, none of the Credit
Parties owns any shares of Capital Stock of, or has any direct or indirect
equity interest in, any other Person and (ii) all of the issued and outstanding
shares of Capital Stock of the Subsidiaries of each Credit Party have been duly
and validly issued and are fully paid, non-assessable and owned of record and
beneficially by such Credit Party.

               (d) Except as set forth on Schedule 4.4 and except for the
Warrants and the Series A Preferred Stock, as of the Closing Date after giving
effect to the Transactions, there are no securities outstanding that are
convertible into or exchangeable for any shares of Capital Stock of any Credit
Party, nor are there outstanding any rights to subscribe for or purchase, or any
options or warrants for the purchase of, or any agreements (contingent or
otherwise) providing for the issuance of, or any calls, commitments or claims of
any character relating to, any shares of Capital Stock of any Credit Party or
any securities convertible into or exchangeable for any such shares.

               (e) On the Closing Date, after giving effect to the Transactions,
none of the Credit Parties will be subject to any obligation (contingent or
otherwise) to repurchase, acquire or retire (i) any of its Capital Stock, (ii)
any securities convertible into or exchangeable for any of its Capital Stock, or
(iii) any options, warrants or other rights to subscribe for, purchase or
acquire any of its Capital Stock.

                                       38
<PAGE>   46

               Section 4.5 Business Operations and Other Information; Financial
Condition.

               (a) The Parent and the Issuer have delivered to the Purchasers
true and complete copies of the following financial statements (collectively,
the "Financial Statements") (i) the audited consolidated balance sheets of
Vantas as at June 30, 1997, June 30, 1998, December 31, 1998 and December 31,
1999 and the related consolidated statements of income, stockholders equity and
cash flows of Vantas for the fiscal years ended as of such dates, which
financial statements have been examined by PriceWaterhouseCoopers LLP,
independent certified public accountants, who delivered unqualified opinions in
respect thereto, (ii) the unaudited consolidated balance sheet of Vantas as at
March 31, 2000 and related consolidated statements of income, stockholders
equity and cash flows of Vantas for the fiscal quarter ended as of such date,
(iii) the audited consolidated balance sheets of HQ as at December 31, 1997,
December 31, 1998 and December 31, 1999 and the related statements of earnings
and cash flows of HQ and its Subsidiaries for the fiscal years ended as of such
dates, which financial statements have been examined by KPMG LLP, independent
certified public accountants, who delivered unqualified opinions in respect
thereto, (iv) the unaudited consolidated balance sheet of HQ as at March 31,
2000 and the related statements of earnings and cash flows of HQ and its
Subsidiaries for the fiscal quarter ended as of such date, (v) the pro forma
(after giving effect to the Transactions and the related financing thereof)
consolidated balance sheets and statements of income and cash flow of the Parent
and its Subsidiaries as at December 31, 1999 and pro forma (after giving effect
to the Transactions on the Transaction Date and the related financing thereof)
financial statements of income of the Parent and its Subsidiaries for the
six-month period ended June 30, 2000 and (vi) the consolidated balance sheet of
the Parent and its Subsidiaries as at June 30, 2000. The Financial Statements
have been prepared in accordance with GAAP (except as otherwise noted therein),
consistently applied, and subject, in the case of each of the Financial
Statements that are unaudited, to normal year-end audit adjustments and absence
of certain of the notes required by GAAP, and present fairly, in all material
respects, the consolidated financial position and related results of operations,
retained earnings, stockholders' equity and/or cash flows (as applicable) of the
respective entities as at each of the dates and for each of the periods
respectively covered thereby(or, in the case of the pro forma financial
statements, present a good faith estimate of the pro forma financial condition
of Parent and its Subsidiaries (after giving effect to the Transactions on the
Transaction Date) on a consolidated basis at the date thereof). Since December
31, 1999, no Material Adverse Effect has occurred.

               (b) Except as fully reflected in the Financial Statements, there
were as of the Closing Date (and after giving effect to the Transactions and the
other transactions contemplated hereby and by the Transaction Documents) no
liabilities or obligations with respect to the Parent or any of its Subsidiaries
of any nature whatsoever (whether absolute, accrued, contingent or otherwise and
whether or not due) which, either individually or in aggregate, could reasonably
be expected to be material to the Parent and its Subsidiaries taken as a whole.
As of the Closing Date, neither the Parent nor any of its

                                       39
<PAGE>   47

Subsidiaries knows of any basis for the assertion against the Parent or any of
its Subsidiaries of any liability or obligation of any nature whatsoever that is
not fully reflected in the Financial Statements which, either individually or in
the aggregate, could reasonably be expected to be material to the Parent and its
Subsidiaries taken as a whole. As of the Closing Date (and after giving effect
to the Transactions), none of the Parent or any of its Subsidiaries will have
any outstanding Indebtedness or preferred stock other than (i) Indebtedness
under the Senior Loan Agreement, (ii) the Notes and Guarantee, (iii) the Series
A Preferred Stock, and (iv) the Indebtedness listed on Schedule 4.9A.

               (c) Attached as Schedule 4.5C is a true and complete copy of the
latest (as of the Closing Date) projections of (i) the consolidated net income
and cash flow of each of the Parent and the Issuer (assuming completion of the
Transactions) for each of the fiscal years of such Credit Parties in the period
from the Closing Date through December 31, 2005, and (ii) cash flows of the
Parent and its Subsidiaries on a consolidated basis for each fiscal month of the
Parent during the period commencing June 1, 2000 and ending on March 31, 2001.
The projections referred to in clause (i) have been prepared by management of
the Credit Parties on the basis of assumptions, set forth in Schedule 4.5C,
which such management reasonably believes as of the date they were prepared are
fair and reasonable in light of the historical financial performance of the
Credit Parties and of current and reasonably foreseeable business conditions,
and represent such management's best estimate of the Credit Parties' future
financial performance (after giving effect to the Transactions) (although actual
results may differ from such projections and no representation is made that such
projections will in fact be attained). The projections referred to in clause
(ii) have been prepared by management of the Credit Parties on the basis of
assumptions, which such management reasonably believes as of June 15, 2000 were
fair and reasonable in all material respects over the entire period in light of
the historical financial performance and working capital position of the Credit
Parties and of then reasonably foreseeable business conditions, and represent
such management's reasonable estimate of the Credit Parties' future cash flows
for the entire period taken as a whole (after giving effect to the Transactions)
(although actual results for any month and actual results for the entire period
will differ from such projections and no representation is made that such
projections will in fact be attained).

               (d) Attached as Schedule 4.5D true and complete copy of a
compliance letter, from KPMG LLP, regarding the pro forma adjustments of the
combined entities for the fiscal period ended December 31, 1999, which has been
certified as to conformity with Regulation S-X under the Securities Act.

               (e) Attached as Schedule 4.5E is a true and complete statement of
the estimated sources and uses of all funds to be received or expended by the
Credit Parties in connection with the Transactions as of the Transaction Date
and as of the Closing Date, including all costs and expenses expected to be
incurred in connection with the Transactions.

               (f) Attached as Schedule 4.5F is a true and complete report of
all material trade payables of the Credit Parties as of July 31, 2000.

                                       40
<PAGE>   48

               (g) The Parent and M Sub were incorporated on May 24, 2000 and
May 24, 2000, respectively. Since its respective date of incorporation, neither
the Parent nor M Sub has engaged in any business or activity other than
activities relating to the Stock Purchases and the Mergers, the other
Transactions and its formation as a separate corporation. On the Closing Date,
after giving effect to the Transactions, the Parent has no material assets other
than the outstanding shares of Capital Stock of the Issuer and the Development
Assets listed on Schedule 1.1B.

               Section 4.6 Litigation; No Violation of Governmental Orders or
Laws.

               (a) Except as set forth on Schedule 4.6, there are no actions,
suits or proceedings pending, or, to the knowledge of the Parent and the Issuer,
threatened against or affecting any Credit Party or any of its Properties or
rights which, individually or in the aggregate, could reasonably be expected to
have a Material Adverse Effect.

               (b) As of the Closing Date, there are no actions, suits or
proceedings pending, or, to the knowledge of the Parent and the Issuer,
threatened against any Credit Party which seek to enjoin, or otherwise prevent
the consummation of, the transactions contemplated herein or to recover any
damages or obtain any relief as a result of any of the transactions contemplated
herein in any court or before any arbitrator of any kind or before or by any
Governmental Body.

               (c) No Credit Party is, nor will be after giving effect to the
consummation of the Transactions, in default under or in violation of any
Statute or Order, which default or violation, individually or in the aggregate
together with all other such defaults and violations, has had or is reasonably
likely to have a Material Adverse Effect.

               Section 4.7 No Conflicts with Agreements, Etc. Neither the
execution and delivery by any Credit Party of this Agreement, the Notes, the
Warrants or any of the other Transaction Documents, nor the offering, issuance
and sale of the Notes and Warrants nor the fulfillment of or compliance by any
Credit Party with the respective terms and provisions hereof or thereof, will
conflict with, or result in a breach or violation of the terms, conditions or
provisions of, or constitute a default under, or result in the creation of any
Lien (other than Permitted Liens) on any Properties or assets of any Credit
Party pursuant to, (i) its charter or by-laws, (ii) any Material Contract or,
except as set forth on Schedule 4.7, any other contract, agreement, mortgage,
indenture, lease or instrument to which it is a party or by which it is bound or
to which any of its assets are subject, which could reasonably be expected to
have a Material Adverse Effect, or (iii) any Statute or Order to which it or any
of its assets are subject.

               Section 4.8 Consents, Etc. No consent, approval or authorization
of or declaration, registration or filing with any Governmental Body or any
nongovernmental Person, (including any creditor or stockholder of any Credit
Party and any consent, approval, authorization, declaration or filing or the
expiration of any waiting period under the Hart-Scott-Rodino Anti-Trust
Improvements Act of 1976), is required in connection with the execution or
delivery by any Credit Party of this Agreement, the Notes, the Warrants or any
of the other Transaction Documents, or the performance by any Credit

                                       41

<PAGE>   49

Party of its obligations hereunder or thereunder, or as a condition to the
legality, validity or enforceability of this Agreement, the Notes, the Warrants
or any of the other Transaction Documents, except for such consents, approvals,
authorizations, declarations, registrations or filings as are listed in Schedule
4.8 or Schedule 4.10, all of which have been or will on or prior to the Closing
Date be obtained and are or will then be in full force and effect (except to the
extent set forth on Schedule 4.8).

         Section 4.9 Outstanding Indebtedness; Investments; Existing Letters of
Credit.

         (a) Schedule 4.9A sets forth a correct and complete list of all
Indebtedness of the Credit Parties and all Liens securing such Indebtedness
(excluding any Indebtedness evidenced by the Notes) existing on the Closing Date
after giving effect to the Transactions. As of the Closing Date, after giving
effect to the Transactions, there exists no breach or default or event of
default under the terms and provisions of any instrument, agreement or contract
(including any Senior Loan Document) pertaining to any such Indebtedness and no
event or condition which, with due notice or lapse of time or both, would
constitute such a breach or default. The Senior Loan Documents are in full force
and effect and, as of the Closing Date, the Credit Parties satisfy the
conditions precedent in Section 5 of the Senior Loan Agreement to further
extensions of credit and no Credit Party has received any notice (written or
oral) of any such breach, default or event of default.

         (b) Schedule 4.9B sets forth a correct and complete list of all
Investments of the Credit Parties existing on the Closing Date after giving
effect to the Transactions.

         (c) Schedule 4.9C sets forth a description of all letters of credit
outstanding on the Closing Date issued by any Person for the account of any
Credit Party which is not continuing as a letter of credit under the Senior Loan
Agreement, including any such letters of credit issued under the HQ Credit
Facility and sets forth, with respect to each such letter of credit, (i) the
name of the issuing bank, (ii) the letter of credit number, (iii) the stated
amount, (iv) the name of the beneficiary and (v) the expiry date. Each such
letter of credit, including any extension or renewal thereof, as amended from
time to time in accordance with the terms thereof and the applicable
reimbursement agreement governing same, is hereinafter referred to as an
"Existing Letter of Credit".

         Section 4.10 Title to Properties.

         (a) Schedule 4.10 sets forth as of the Closing Date a true and complete
list of all real Property leased by any Credit Party, together with a true and
complete list of all leases of real Property to which any Credit Party is a
party, identifying the parties to each such lease and the Property to which it
relates. As of the Closing Date, no Credit Party owns any fee interests in real
Property. As of the Closing Date, each Credit Party has good title to all of its
Properties and assets (other than Properties and assets leased from others),
free and clear of any Liens except Permitted Liens.

                                       42

<PAGE>   50

         (b) The Credit Parties have furnished or made available to the
Purchasers or their representatives true and complete copies of all leases of
real Property and any material personal Property leased by any Credit Party from
others as of the Closing Date, together with all amendments, modifications and
supplements thereto to the Closing Date. No Credit Party is in breach or
violation of the terms of any such lease, except for such breaches and
violations thereof as in the aggregate do not and will not have a Material
Adverse Effect, and no Credit Party knows of any breach or violation of any of
such leases by any third party, except for such breaches and violations thereof
as in the aggregate do not and will not have a Material Adverse Effect.

         (c) The equipment and other tangible personal Property of each Credit
Party is in good operating condition and repair, ordinary wear and tear
excepted, and is free and clear of any known defects except such defects as do
not materially interfere with the continued use thereof in the conduct of its
normal operations.

         No real Property lease of any Credit Party requires the consent of the
landlord thereunder to the Stock Purchases and Mergers, except as set forth on
Schedule 4.10, all of which have been obtained and are in full force and effect
(except as disclosed on Schedule 4.10). Neither the Parent nor any of its
Subsidiaries has agreed (and neither the Parent nor any of its Subsidiaries will
agree) to (x) an increase in the rate of rent under such leases or (y) any other
future payment, in either case, in order to obtain any such consents. All cash
payments made in order to obtain any such landlord's consent is set forth on
Schedule 4.10 and all such payments have been made in full. The aggregate amount
of all such cash payments by the Parent and its Subsidiaries to the landlords
under such leases in order to obtain such consents shall not exceed $5.0
million.

         Section 4.11 Taxes. Each Credit Party has filed all federal, state,
local and foreign tax returns, informational returns and excise tax returns
which are required to have been filed by it, and there have been paid all taxes
shown to be due and payable on such returns and all other material taxes and
assessments payable by it, unless any tax liability is being diligently
contested in good faith and such Credit Party has adequately reserved against
such tax liability on its books and financial statements in accordance with
GAAP. No material tax liens have been filed and no material claims are being
asserted with respect to any such taxes as of the date hereof. No material tax
assessment against any Credit Party has been proposed and all of its tax
liabilities are adequately provided for on its books and financial statements in
accordance with GAAP.

         Section 4.12 Disclosure. All factual information (taken as a whole)
heretofore or contemporaneously furnished by or on behalf of the Parent or any
Subsidiary of the Parent in writing to any Purchaser (including, without
limitation, all information contained in the Transaction Documents) for purposes
of or in connection with this Agreement or any transaction contemplated herein
is, and all other such factual information (taken as a whole with all
information previously furnished) hereafter furnished by or on behalf of the
Parent or any Subsidiary of the Parent in writing to any Purchaser will be, true
and accurate in all material respect on the date as of which such

                                       43
<PAGE>   51

information is dated or certified and not incomplete or misleading by omitting
to state any material fact.

               Section 4.13 Offering of Securities. No Credit Party or any
representative thereof has, directly or indirectly, offered any of the Notes or
the Warrants or any security similar to any of them for sale to, or solicited
any offers to buy any of the Notes or the Warrants or any security similar to
any of them from, or otherwise approached or negotiated with respect thereto
with, more than 30 Persons including the Purchasers, and none of the Credit
Parties nor any representative thereof has taken or will take any action which
would subject the issuance or sale of any of the Notes or the Warrants to the
provisions of Section 5 of the Securities Act or violate the provisions of any
securities or Blue Sky laws of any applicable jurisdiction.

               Section 4.14 Broker's or Finder's Commissions; Financial Advisory
Fees. Except for the structuring fee payable under Section 2.6 and the fees set
forth on Schedule 4.14, no broker's or finder's fee or commission or financial
advisory or similar fees will be payable by any Credit Party with respect to the
issuance and sale of the Notes or the Warrants or the other Transactions. Each
Credit Party agrees to indemnify the Purchasers and hold each of each of them
harmless against any loss, cost, claim or liability (including reasonable
attorneys' fees and reasonable disbursements for the investigation and defense
of claims) arising out of or relating to any such actual or alleged broker's or
finder's fee or commission.

               Section 4.15 Labor Matters. Except as set forth in Schedule 4.15,
during the past three years there has been no strike, work stoppage, slowdown or
other labor dispute or grievance involving any Credit Party or its employees,
which has had or could reasonably be expected to have a Material Adverse Effect,
nor is any such action, dispute or grievance currently pending or, to the
knowledge of any Credit Party, threatened against any Credit Party. Except as
set forth in Schedule 4.15, as of the Closing Date, no Credit Party is a party
to any collective bargaining agreement and no Credit Party has any knowledge of
any pending or threatened effort to organize any of their employees. Except as
set forth in Schedule 4.15, as of the Closing Date, to the knowledge of the
Parent and the Issuer, there are currently no pending retaliatory or wrongful
discharge claims or federal, state or local employment discrimination charges or
complaints or administrative or judicial complaints arising therefrom pending
against any Credit Party which has had or could reasonably be expected to have a
Material Adverse Effect, nor to the knowledge of any Credit Party after due
inquiry are any such charges or complaints threatened against any Credit Party.
Each Credit Party is in compliance with all applicable federal, state, local and
foreign Statutes and Orders relating to the employment of labor, including any
provisions thereof relating to wages, bonuses, collective bargaining agreements,
equal pay, occupational safety and health, equal employment opportunity,
unemployment insurance, and wrongful or retaliatory termination of employment,
except where non-compliance is not reasonably likely to have a Material Adverse
Effect.

                                       44
<PAGE>   52

         Section 4.16 Environmental Matters. Except as set forth in Schedule
4.16:

         (a) there is no pending or, to the knowledge of the Parent or the
Issuer, threatened Environmental Matter which could reasonably be expected to
have a Material Adverse Effect, and none of the Parent or the Issuer is aware of
any facts that could reasonably be expected to result in any such Environmental
Matter. No Credit Party has agreed to assume on or prior to the Closing Date by
contract or otherwise any liability of any other Person for cleanup, compliance,
or required capital expenditures in connection with any Environmental Matter
arising prior to the date hereof;

         (b) the Properties used, owned, leased, operated, managed or controlled
at any time by any Credit Party are free of contamination from Hazardous
Materials that would reasonably be expected to have a Material Adverse Effect;

         (c) each Credit Party is currently in compliance with all applicable
Environmental Laws and is not currently in receipt of any notice of violation of
any Environmental Law or of any potential liability for cleanup of Hazardous
Materials, except where non-compliance could not reasonably be expected to have
a Material Adverse Effect. Each Credit Party holds and is in compliance with all
governmental permits, licenses, and authorizations necessary to operate its
business that relate to siting, wetlands, coastal zone management, air
emissions, discharges to surface or ground water, discharges to any sewer or
septic system, noise emissions, solid waste disposal or the generation, use,
transportation or other management of Hazardous Materials, except where
non-compliance could not reasonably be expected to have a Material Adverse
Effect. No Credit Party has at any time managed, handled, generated,
manufactured, refined, recycled, discharged, emitted, released, buried,
processed, produced, reclaimed, stored, treated, transported, or disposed of any
Hazardous Materials except in material compliance with all applicable Statutes
and Orders;

         (d) no real Property used, owned, leased, operated, managed or
controlled by any Credit Party is (i) listed or proposed for listing on the
National Priorities List under CERCLA or is (ii) listed in the Comprehensive
Environmental Response, Compensation, Liability Information System List
promulgated pursuant to CERCLA, or on any comparable list maintained by any
Governmental Body, except for such listings which could not reasonably be
expected to have a Material Adverse Effect;

         (e) no Properties of any Credit Party are subject to any Lien or, claim
for Lien in favor of any Person relating to any Environmental Matter or response
thereto which could reasonably be expected to have a Material Adverse Effect;
and

         (f) no Credit Party has any liabilities, absolute or contingent, with
respect to Hazardous Materials, except for such liabilities which could not
reasonably be expected to have a Material Adverse Effect.

         Section 4.17 Margin Regulations. No part of the proceeds from the sale
of the Notes or Warrants will be used, and no part of the proceeds of any loans
repaid

                                       45
<PAGE>   53

with the proceeds from the sale of the Notes or Warrants was used, directly or
indirectly, for the purpose of buying or carrying any margin stock within the
meaning of Regulation U of the Board of Governors of the Federal Reserve System
of the United States (12 CFR 207), or for the purpose of buying or carrying or
trading in any securities under such circumstances as to involve any Credit
Party in a violation of Regulation X of said Board (12 CFR 224) or to involve
any broker or dealer in a violation of Regulation T of said Board (12 CFR 220).
No Credit Party or any agent acting on its behalf has taken or will take any
action which might cause this Agreement or the Notes or Warrants to violate
Regulation U, Regulation X, Regulation T or any other regulation of the Board of
Governors of the Federal Reserve System or to violate the Exchange Act, in each
case as in effect now or as the same may hereafter be in effect. As used in this
Section, the term "purpose of buying or carrying" has the meaning assigned
thereto in the aforesaid Regulation U.

         Section 4.18 Pension and Benefit Plans.

         (a) Set forth in Schedule 4.18 is a true and complete list as of the
Closing Date of, and the Credit Parties have furnished or made available to the
Purchasers copies of, each bonus, deferred compensation, incentive compensation,
stock purchase, stock option, severance or termination pay, vacation pay,
unemployment, hospitalization or other medical, life or other insurance, or
retirement plan, program, agreement or arrangement maintained by any Person with
respect to employees of the Credit Parties or any of its ERISA Affiliates, each
other Plan or Multiemployer Plan maintained by any Person with respect to
employees of the Credit Parties or its ERISA Affiliates, and each employment,
consulting, severance or similar agreement between any Credit Party and its
officers and managerial employees, including all Foreign Pension Plans adopted
by each Credit Party.

         (b) Except as set forth on Schedule 4.18 as of the Closing Date:

               (i) no Pension Plan which is subject to Part 3 of Subtitle B of
Title 1 of ERISA or Section 412 of the Code had an accumulated funding
deficiency (as such term is defined in Section 302 of ERISA or Section 412 of
the Code), whether or not waived, as of the last day of the most recent fiscal
year of such Pension Plan heretofore ended, which deficiency could reasonably be
expected to have a Material Adverse Effect;

               (ii) no liability to the PBGC (other than required insurance
premiums, all of which have been paid) has been incurred and is outstanding with
respect to any Pension Plan, except for such liabilities that could not
reasonably be expected to have a Material Adverse Effect, and there has not been
any Reportable Event, or any other event or condition, which could reasonably be
expected to result in the involuntary termination of any Pension Plan by the
PBGC and that could reasonably be expected to have a Material Adverse Effect;

               (iii) neither any Plan nor any trust created thereunder, nor to
the knowledge of each Credit Party any trustee or administrator thereof, has
engaged in a prohibited transaction (as such term is defined in Section 4975 of
the Code or Section 406

                                       46
<PAGE>   54

of ERISA) that could subject the Credit Parties or ERISA Affiliates to any
material tax or penalty on prohibited transactions imposed under said Section
4975 or Section 502(i) of ERISA; and no Credit Party nor any of its ERISA
Affiliates has received any notice that any Multiemployer Plan or trust created
thereunder, or any trustee or administrator thereof, has engaged in any such
prohibited transaction, except for transactions that could not reasonably be
expected to have a Material Adverse Effect;

               (iv) no liability has been incurred and is outstanding with
respect to any Multiemployer Plan as a result of the complete or partial
withdrawal by any Credit Party or any of its ERISA Affiliates from such
Multiemployer Plan under Title IV of ERISA, nor has any Credit Party or any of
its ERISA Affiliates been notified by any Multiemployer Plan that such
Multiemployer Plan is currently in reorganization or insolvency under and within
the meaning of Section 4241 or 4245 of ERISA or that such Multiemployer Plan
intends to terminate or has been terminated under Section 4041A of ERISA, except
for such non-compliances that could not reasonably be expected to have a
Material Adverse Effect;

               (v) each Credit Party and its ERISA Affiliates are in compliance
in all respects with all applicable provisions of ERISA and the Code and the
regulations and published interpretations thereunder with respect to all Plans
and Multiemployer Plans, except where non-compliance would not have a Material
Adverse Effect;

               (vi) the actuarial present value of all benefit liabilities (as
defined in Section 4001(a)(16) of ERISA) under each Pension Plan that is subject
to Title IV of ERISA does not exceed the Fair Market Value of the assets
allocable to such liabilities, determined as if such Pension Plan were
terminated as of the date hereof, and using such Pension Plan's actuarial
assumptions as set forth in the most recent actuarial report pertaining to such
Pension Plan, except for non-compliances that could not reasonably be expected
to have a Material Adverse Effect;

               (vii) no Credit Party nor any of its ERISA Affiliates has
received any notice to the effect that any Multiemployer Plan has any unfunded
vested benefits within the meaning of Section 4213(c) of ERISA, which could
reasonably be expected to have a Material Adverse Effect;

               (viii) no event has occurred with respect to any Plan or Pension
Plan established or maintained at any time during the five-year period
immediately preceding the Closing Date for the benefit of employees of any
Credit Party or any of its ERISA Affiliates which could reasonably be expected
to result in liability of any Credit Party or any of its ERISA Affiliates under
Section 4069 of ERISA and that could reasonably be expected to have a Material
Adverse Effect;

               (ix) except as described in Schedule 4.18, there are no
liabilities under the Plans that are employee welfare benefit plans (as defined
in Section 3(1) of ERISA) providing for medical, health, life or other welfare
benefits that are not insured by fully paid non-assessable insurance policies,
except for liabilities that would be recognized for accounting purposes under
FASB 106 and that could reasonably be

                                       47
<PAGE>   55

expected to have a Material Adverse Effect, and no such Plan provides for
continued medical, health, life or other welfare benefits for employees after
they leave the employment of any Credit Party or any of its ERISA Affiliates
(other than any such welfare benefits required to be provided under the
Consolidated Omnibus Budget Reconciliation Act or other similar law); and

               (x) no Credit Party nor any of its ERISA Affiliates is a party in
interest (as defined in Section 3(14) of ERISA) with respect to any employee
benefit plan (as defined in Section 3(3) of ERISA), other than the Plans.

         (c) Each Foreign Pension Plan is in compliance in all material respects
with all requirements of law applicable thereto and the respective requirements
of the governing documents for such plan except to the extent such
non-compliance could not reasonably be expected to result in a Material Adverse
Effect. With respect to each Foreign Pension Plan, none of the Parent, its
Affiliates or any of its directors, officers, employees or agents has engaged in
a transaction that subject the Parent, the Issuer, or any of their Subsidiaries,
directly or indirectly, to a material tax or civil penalty. With respect to each
Foreign Pension Plan, reserves have been established in the financial statements
furnished to Purchasers in respect of any unfunded liabilities in accordance
with applicable law and prudent business practice or, where required, in
accordance with ordinary accounting practices in the jurisdiction in which such
Foreign Pension Plan is maintained. The aggregate unfunded liabilities, with
respect to such Foreign Pension Plans could not reasonably be expected to result
in a Material Adverse Effect. There are no actions, suits or claims (other than
routine claims for benefits) pending or threatened against the Parent or any of
its Affiliates with respect to any Foreign Pension Plan which could reasonably
be expected, individually or in the aggregate, to result in a Material Adverse
Effect.

         Section 4.19 Material Contracts. As of the Closing Date, Schedule 4.19
sets forth a true and complete list of all Material Contracts of each Credit
Party. The Credit Parties have furnished or made available to the Purchasers or
their representatives true and complete copies of such Material Contracts, with
all material amendments, modifications and supplements thereto to the Closing
Date. As of the Closing Date, each of such Material Contracts is valid,
subsisting and in full force and effect. No Credit Party is in breach or
violation of any of the terms, conditions or provisions of any of such Material
Contracts, except for such breaches and violations thereof as in the aggregate
do not and will not have a Material Adverse Effect, and to the knowledge of the
Parent and the Issuer no third party to any of such Material Contracts is in
breach or violation of any of the terms, conditions or provisions thereof,
except for such breaches and violations thereof as in the aggregate do not and
will not have a Material Adverse Effect.

         Section 4.20 Insurance. Schedule 4.20 sets forth a true and complete
list and brief description of all policies of workers compensation, general
liability, fire, property, casualty, marine, business interruption, errors and
omissions, flood, earthquake and other insurance carried by the Credit Parties
on the Closing Date after giving effect to the Transactions, true and complete
copies of which policies have been previously

                                       48
<PAGE>   56

delivered or made available to the Purchasers. Such policies are in full force
and effect on the Closing Date, and no Credit Party has received notice of
cancellation with respect to any such policy. All material premiums payable with
respect to such policies have been paid through the Closing Date.

         Section 4.21 Possession of Franchises, Licenses, Etc. Each Credit Party
possesses all franchises, certificates, licenses, permits, registrations,
security clearances and other authorizations from Governmental Bodies, free from
burdensome restrictions, that are necessary for the ownership, maintenance and
operation of its Properties and assets, and for the conduct of its business as
now conducted, and no Credit Party is in violation of any thereof, except for
such non-possessions and violations as in the aggregate do not and could not
reasonably be expected to have a Material Adverse Effect.

         Section 4.22 Intellectual Property.

         (a) Set forth on Schedule 4.22 is an accurate and complete list of all
(i) Intellectual Property owned by the Credit Parties, and applications for any
thereof, and all (ii) License Agreements with respect to Intellectual Property
used in the business of the Credit Parties, specifying with respect to each such
item the owner thereof, the registration or application number thereof, the
jurisdiction by or in which such item has been issued or registered or in which
an application therefor has been filed, if any, the date of such issuance,
registration or application, and the expiration date thereof, other than (x)
Intellectual Property which is not material to the Credit Parties' business or
operations and (y) "off the shelf" software obtained for less than $5,000
individually which is subject to shrink wrap licenses.

         (b) The Credit Parties own and have good title to, or are party to
enforceable License Agreements permitting the Credit Parties the use of, all
material items of Intellectual Property, free from Liens and restrictions that
adversely affect their businesses as now conducted and material additional
costs, which are necessary for the present and planned future conduct of their
businesses. Except as set forth in Schedule 4.22, and except for such matters as
in the aggregate are not reasonably likely to, and will not, result in a
Material Adverse Effect, (i) to the best knowledge of the Parent and the Issuer,
none of the present or contemplated products or operations of the Credit
Parties, or the use by the Credit Parties of any of such Intellectual Property,
infringes or otherwise violates, or will then infringe or otherwise violate, any
Intellectual Property owned by any other Person, and (ii) there is no pending
or, to the best knowledge of the Parent and the Issuer, threatened claim,
demand, litigation, investigation, arbitration or other proceeding against or
affecting any Credit Party contesting the right of any of them to manufacture,
distribute or sell any such product or to engage in any such operation, or to
use any of such Intellectual Property.

         (c) All registrations for Intellectual Property identified on Schedule
4.22 are valid and in force, and all applications to register any unregistered
Intellectual Property so identified are pending and in good standing, and are
all without challenge of any kind. The Intellectual Property owned by the Credit
Parties is valid and enforceable in all material respects. Each Credit Party has
the sole and exclusive right to bring actions

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<PAGE>   57

for infringement or unauthorized use of the Intellectual Property and software
that is listed on Schedule 4.22 owned by such Credit Party, as the case may be,
and there is no valid basis for any such action. Correct and complete copies of
registrations for all registered Intellectual Property identified on Schedule
4.22 (together with any subsequent correspondence with the United States
Copyright Office or the United States Patent and Trademark Office, as
applicable, or filings relating to the foregoing) have been delivered or made
available by the Credit Parties to the Purchasers or their counsel.

         Section 4.23 Use of Proceeds. The proceeds from the sale and issuance
of the Notes and Warrants on the Closing Date will be used by the Credit Parties
to refinance the Senior Subordinated Bridge Loan and to pay costs and expenses
of the Transactions.

         Section 4.24 Foreign Assets Control Regulations. None of the Credit
Parties nor, to the best knowledge of the Parent and the Issuer after due
inquiry, any Affiliate of any Credit Party, is, or will be after consummation of
the Transactions and application of the proceeds of the Notes, by reason of
being a "national" of a "designated foreign country" or a "specially designated
national" within the meaning of the Regulations of the Office of Foreign Assets
Control, United States Treasury Department (31 C.F.R., Subtitle B, Chapter V),
or for any other reason, in violation of, any United States Federal Statute or
Presidential Executive Order concerning trade or other relations with any
foreign country or any citizen or national thereof or the ownership or operation
of any Property.

         Section 4.25 Status under Certain Laws. No Credit Party is an
"investment company" or a "person directly or indirectly controlled by or acting
on behalf of an investment company" within the meaning of the Investment Company
Act of 1940, as amended, or a "holding company," or a "subsidiary company" of a
"holding company," or an "affiliate" of a "holding company" or of a "subsidiary
company" of a "holding company," within the meaning of the Public Utility
Holding Company Act of 1935, as amended. No Credit Party is subject to
regulation as a "common carrier" or "contract carrier" or any similar
classification by the Interstate Commerce Commission or under the laws of any
state, or is subject to regulation under any other federal, state or local
Statute which limits its ability to incur Indebtedness.

         Section 4.26 Ranking of Notes. The Indebtedness represented by the
Notes and the other Obligations under the Note Documents of each Credit Party
are intended to constitute senior subordinated Indebtedness, and accordingly is,
and shall be at all times while the Notes remain outstanding or the Purchasers
have any obligation to purchase Notes hereunder, (i) senior in right of payment
to, or pari passu with, all other unsecured Indebtedness (other than the
unsecured portion, if any, of the Senior Indebtedness), of such Credit Party, as
the case may be, respectively, and (ii) senior in right of payment to all other
Indebtedness of such Credit Party which, under the terms of the documents
pursuant to or in connection with which such Indebtedness was created or
incurred, is subordinated in right of payment to some or all of the other
Indebtedness (other than the Senior Indebtedness) of such Credit Party, as the
case may be.

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<PAGE>   58

         Section 4.27 Customers . Set forth in Schedule 4.27 is a list, as of
the Closing Date after giving effect to the Transactions, of the Credit Parties'
ten largest operating customers and clients, as measured by gross revenues of
the Credit Parties generated by such customers and clients, for the three years
ended as of December 31, 1997, 1998 and 1999. Except as disclosed on Schedule
4.27, as of the Closing Date, no significant customer or client (or group of
related customers or clients which in the aggregate is significant) of the
Credit Parties has given any of them notice or, to the knowledge of the Credit
Parties, has taken any other action which has given any Credit Party any reason
to believe that such customer or client (or group of customers or clients) will
materially reduce the amount of its purchases or adversely change the price or
terms to any Credit Party of such purchases. For such purposes, a customer or
client (or group of customers or clients) shall be deemed "significant" if such
customer or client (or group of related customers or clients) has accounted for
more than 5% of the total gross revenues of the Credit Parties (taken as a
whole) during the past fiscal year.

         Section 4.28 Solvency. Each Credit Party is Solvent on the Closing Date
both before and after giving effect to the Transactions to be effected on or
prior to the Closing Date and the application of the net proceeds of the
issuance and sale of the Notes and Warrants, the Senior Indebtedness and the
Capital Stock (including the Series A Preferred Stock) of the Parent to be
issued or incurred on or prior to the Closing Date pursuant to the Equity
Documents.

         Section 4.29 Transaction Documents; Transaction.

         (a) The representations and warranties of each Credit Party contained
in each Merger Document, Equity Document, FrontLine Transaction Contribution
Document, Senior Loan Document, and Existing L/C Back-Stop Documents were true
and correct in all material respects on the Transaction Date and are true and
correct in all material respects on the date hereof (except to the extent any
such representation or warranty specifically relate to an earlier date in which
case such representation or warranty shall be true and correct in all material
respects on and as of such date), and the Purchasers shall be entitled to rely
upon such representations and warranties with the same force and effect as if
they were incorporated in this Agreement and made to the Purchasers directly.

         (b) All aspects of the Transactions have been effected in all material
respects in accordance with terms of the Transaction Documents and applicable
law. At the time of consummation thereof, all consents and approvals of, and
filings and registrations with, and all other actions in respect of, all
Government Bodies required in order to consummate the Transactions in accordance
with the terms of the Transaction Documents and all applicable laws shall have
been obtained, given, filed or taken and are in full force and effect (or
effective judicial relief with respect thereto has been obtained). All
applicable waiting periods with respect thereto have or, prior to the time when
required, will have, expired without, in all such cases, any action being taken
by any competent authority which restrains, prevents or imposes material adverse
conditions upon the consummation

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<PAGE>   59

of the Transactions. Additionally, at the time of consummation thereof, there
does not exist any judgment, order or injunction prohibiting or imposing
material adverse conditions upon the consummation of the Transactions or the
issuance of the Notes or the Warrants.

         (c) The Credit Parties have delivered to the Purchasers and their
special counsel true and correct copies of each of the Merger Documents, the
Equity Documents, the Frontline Transaction Contribution Documents, the Senior
Loan Documents and the Existing L/C Back-Stop Documents (including all exhibits
and schedules thereto) as in effect on the Closing Date, including all
amendments, modifications and supplements thereto (there being no amendments or
modifications to such documents, and no waiver of any rights thereunder by any
Credit Party, nor of any condition to the obligations of such Persons under any
thereof, except as heretofore disclosed to the Purchasers in writing). This
Agreement and the other Transaction Documents constitute the only material
agreements relating to the Transactions to which any Credit Party is a party.

         (d) Except as set forth on Schedule 4.29, as of the Closing Date, no
Credit Party has any further obligations or liabilities to make any payments of
any kind to any Person pursuant to the Transaction Documents or relating to the
Transactions.

         Section 4.30 RICO. No Credit Party is engaged in or has engaged in any
course of conduct that could subject any of their respective material properties
to any Lien, seizure or other forfeiture under any criminal law, racketeer
influenced and corrupt organizations law, civil or criminal, or other similar
laws.

         Section 4.31 Business Centers; Owners. Set forth on Schedule 4.31 is a
list of each of the Business Suite Centers of the Parent and each Subsidiary of
the Parent as of the Closing Date, and identifies the owners of each such
Business Suite Center, those that are owned by limited liability companies, and
those that the Parent or any of its Subsidiaries manages pursuant to a
management contract.

         Section 4.32 Restrictions on or Relating to Subsidiaries.

         (a) There does not exist any encumbrance or restriction on the ability
of (x) any Subsidiary of the Parent to pay dividends or make any other
distributions on its capital stock or any other interest or participation in its
profits owned by the Parent or any Subsidiary of the Parent, or to pay any
Indebtedness owed to the Parent or a Subsidiary of the Parent, (y) any
Subsidiary of the Parent to make loans or advances to the Parent or any of the
Parent's Subsidiaries or (z) any Subsidiary of the Parent to transfer any of its
properties or assets to the Parent or any Subsidiary of the Parent, except for
such encumbrances or restrictions existing under or by reason of (i) applicable
law, (ii) the Note Documents and the Senior Loan Documents, (iii) customary
provisions restricting subletting or assignment of any lease governing a
leasehold interest of the Parent or a Subsidiary of the Parent, or (iv)
restrictions applicable to any Joint Venture that is a Subsidiary existing at
the time of the acquisition thereof as a result of an Investment pursuant to
Section 9.7; provided that the restrictions applicable to the respective such
Joint Venture are not made worse, or more burdensome, from the perspective of
the

                                       52
<PAGE>   60

Parent and its Subsidiaries, than those as in effect immediately before giving
effect to the consummation of the respective Investment.

               (b) There does not exist any encumbrance or restriction on the
ability of any Non-Subsidiary Joint Venture to pay dividends or make any other
distributions on its capital stock or any other interest or participation in its
profits owned by the Parent or any Subsidiary of the Parent, or to pay any
Indebtedness owed to the Parent or a Subsidiary of the Parent, except for such
encumbrances or restrictions existing under or by reason of (i) applicable law,
(ii) the Note Documents and the Senior Loan Documents, (iii) customary
provisions restricting subletting or assignment of any lease governing a
leasehold interest of any Non-Subsidiary Joint Venture, (iv) restrictions
applicable to any Non-Subsidiary Joint Venture existing at the time of the
acquisition thereof as a result of an Investment pursuant to Section
9.7(b)(viii); provided that the restriction applicable to the respective such
Non-Subsidiary Joint Venture are not made worse, or more burdensome, from the
perspective of the Parent and its Subsidiaries, than those as in effect
immediately before giving effect to the consummation of the respective
Investment.

               Section 4.33 Name Change. Immediately after giving effect to the
Second Step Merger, the Issuer caused an amendment to its Certificate of
Incorporation to be filed with the Secretary of State of the State of Delaware,
which amendment changed the name of the Issuer from "HQ Merger Subsidiary, Inc."
to "HQ Global Workplaces, Inc."

               Section 4.34 Operating Company Status. Each of the Credit Parties
on the Closing Date is (i) an "operating company""(other than a "venture capital
operating company"), as such terms are defined in 29 C.F.R. Section 2510.3-101,
and (ii) primarily engaged in the provision of executive office suites and
related office services and not the investment of capital. Each of the Credit
Parties employs a majority of its assets in the foregoing operating business,
incurs a majority of its expenses in furtherance thereof, and derives a majority
of its gross income from such activities. Each of the Credit Parties has not
merely passively assumed the risks from the ownership of its assets, but the
return to its shareholders from its investment depends in substantial part on
its success in the foregoing operating business. The employees of each of the
Credit Parties, on such Credit Party's behalf, perform most of the executive
office service functions with respect to the foregoing operating business,
subject to supervision by such Credit Party, as to which supervision such Credit
Party devotes substantial resources.

         Section 4A. Representations of the Purchasers. Each Purchaser
represents to the Issuer that it is acquiring the Notes and the Warrants to be
purchased by it hereunder for its own account, for investment, and not with a
view to or for sale in connection with any distribution thereof in violation of
the registration provisions of the Securities Act or the rules and regulations
promulgated thereunder.

         Section 5. Closing Conditions. Each Purchaser's obligation to purchase
and pay for the Notes to be purchased by it hereunder on the Closing Date shall
be subject to the satisfaction, on or before the Closing Date, of the following
conditions:

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<PAGE>   61

      Section 5.1 Proceedings Satisfactory. All corporate and other proceedings
taken or to be taken in connection with the transactions contemplated to occur
on the Closing Date and all documents incident thereto shall be reasonably
satisfactory in form and substance to the Purchasers and their special counsel,
and the Purchasers and their special counsel shall have received all such
counterpart originals or certified or other copies of such documents as they may
reasonably request, including:

         (a) certificates dated as of a recent date prior to the Closing Date as
to the good standing (or equivalent foreign documentation) and (if available)
payment of taxes of each Credit Party, in each jurisdiction where it is
organized or is authorized to do business as a foreign corporation;

         (b) certified copies of the certificate or articles of incorporation
(or other comparable constituting document) of each Credit Party, with all
amendments thereto to the Closing Date;

         (c) certified copies of the by-laws (or other comparable constituting
document) of each Credit Party, with all amendments thereto to the Closing Date;

         (d) certified copies of resolutions of the Board of Directors of each
Credit Party, authorizing the execution, delivery and performance of the
Transaction Documents to which it is a party; and

         (e) certificates as to the incumbency and signatures of each of the
officers of each Credit Party who shall execute any Transaction Documents or
other document executed and delivered pursuant to or in connection with this
Agreement.

         Section 5.2 Opinions of Counsel for Credit Parties. The Purchasers
shall have received from (i) Brown & Wood LLP, New York counsel to the Credit
Parties in connection with the Transactions, and (ii) local counsel satisfactory
to the Purchasers, in each case, favorable legal opinions, each dated the
Closing Date and addressed to the Purchasers, covering such matters incident to
the Transactions herein contemplated as the Purchasers may reasonably request.

         Section 5.3 Representations and Warranties True, Etc.; Certificates.
The representations and warranties contained in Section 4 and elsewhere in this
Agreement shall be true on and as of the Closing Date with the same effect as if
such representations and warranties had been made on and as of the Closing Date
after giving effect to the Transactions contemplated hereby (except to the
extent any such representation or warranty specifically relate to an earlier
date in which case such representation or warranty shall be true and correct in
all material respects on and as of such date). Each Credit Party shall have
performed all agreements on its part required to be performed under this
Agreement on or prior to the Closing Date, and there shall exist no Default or
Event of Default on the Closing Date after giving effect to the Transactions
contemplated by this Agreement. The Issuer shall have delivered to the
Purchasers an Officer's Certificate, dated the Closing Date, to the effect of
the matters stated in the foregoing sentences of this Section 5.3 and in
Sections 5.4, 5.5 and 5.6.

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<PAGE>   62

         Section 5.4 Absence of Material Adverse Change, Etc. Since December 31,
1999, no Material Adverse Effect shall have occurred.

         Section 5.5 Consents and Approvals. Except for the consents of
landlords with respect to real Property leases of the Credit Parties which have
not been obtained as set forth on Schedule 4.10, all necessary consents,
waivers, approvals and authorizations of, and declarations, registrations and
filings with, Governmental Bodies and nongovernmental Persons required in order
to issue and sell the Notes and the Warrants as contemplated hereby and to
consummate the Merger and the other Transactions shall have been obtained or
made and shall be in full force and effect, including all required consents and
waivers of the holders of the Senior Indebtedness and of any agent or
representative thereof.

         Section 5.6 Absence of Litigation, Orders, Etc. Except as otherwise
disclosed in Schedule 5.6, there shall not be pending or, to the knowledge of
the Credit Parties, threatened, any action, suit, proceeding, governmental
investigation or arbitration against or affecting any Credit Party or its assets
or Property (and, as to any action, suit, proceeding, governmental investigation
or arbitration so disclosed, there shall not have occurred since the date of
this Agreement any development) which seeks to enjoin or restrain any of the
Transactions contemplated herein or which has had or is reasonably likely to
have a Material Adverse Effect. No Order of any court, arbitrator or
Governmental Body shall be in effect which purports to enjoin or restrain any of
the transactions contemplated herein or which has had or is reasonably likely to
have a Material Adverse Effect.

         Section 5.7 Subordination Agreement. The Credit Parties, the Senior
Agent, and the Purchasers shall have executed and delivered the Subordination
Agreement in the form of Exhibit D hereto (as from time to time amended,
modified or supplemented in accordance with its terms, the "Subordination
Agreement").

         Section 5.8 Warrant Holder Agreement. Each of the parties thereto shall
have executed and delivered the Warrant Holder Agreement.

         Section 5.9 Guarantee. The Parent and each other Guarantor on the
Closing Date shall have executed and delivered the Guarantee.

         Section 5.10 Transactions.

         (a) On the Transaction Date, Vantas and HQ shall have consummated the
HQ Merger pursuant to which (i) the existing holders of common stock of Vantas
(other than FrontLine) shall have received cash equal to approximately
$21,742,696 in connection with the conversion of such stock into a right to
receive $8.00 per share as contemplated by the HQ Merger Agreement, (ii) the
existing holders of voting and non-voting common stock of HQ shall have retained
all shares of such common stock (representing a continuing interest in Surviving
HQ with an equity value of approximately $133,600,000) (the "Equity Rollover"),
(iii) each outstanding share of Vantas' preferred stock shall have been
converted into the right to receive 0.2569 shares

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<PAGE>   63

of voting common stock of Surviving HQ in accordance with the conversion
requirements set forth in the HQ Merger Agreement, (iv) certain holders of
options to purchase Vantas' common stock shall have received cash equal to
approximately $11,207,717 in connection with the acceleration and cancellation
of such options pursuant to the HQ Merger Agreement, and (v) holders of options
to purchase Vantas' common stock under Vantas' 1996 stock option plan shall have
converted their option rights into a right to acquire voting common stock of
Surviving HQ on the basis set forth in the HQ Merger Agreement.

         (b) On the Transaction Date and immediately after giving effect to the
HQ Merger, FrontLine shall have purchased 4,130,530 shares of common stock of
Surviving HQ from CarrAmerica and certain other Persons for aggregate cash
consideration of $151,053,482.10 (representing a purchase price of $36.57 per
share) pursuant to, and in accordance with the terms of, the HQ Stock Purchase
Agreement.

         (c) On the Transaction Date and immediately after giving effect to the
HQ Merger and the HQ Stock Purchase, Surviving HQ shall have consummated the
Omni Stock Purchase pursuant to which (i) Surviving HQ shall have purchased from
CarrAmerica (x) 2,006,066 shares of non-voting common stock of Omni UK and 144
shares of non-voting common stock of Omni Lux for aggregate cash consideration
of $24,286,081 and (y) certain Notes (as defined in the Omni Stock Purchase
Agreement) for cash consideration of $50,124,559.34 (representing the aggregate
principal amount of, and accrued and unpaid interest on, such Notes on the
Closing Date), in each case pursuant to, and in accordance with the terms of,
the Omni Stock Purchase Agreement and (ii) CarrAmerica shall have assumed the
obligations of Omni UK under the Loan Notes (as defined in the Omni Stock
Purchase Agreement) in consideration for a cash payment by Surviving HQ of
$15,766,149.82 pursuant to, and in accordance with the terms of, the Omni Stock
Purchase Agreement (with the transactions described in clauses (i) and (ii)
above being herein collectively called the "UK/Lux Acquisition").

         (d) On the Transaction Date and immediately after giving effect to the
HQ Merger, the HQ Stock Purchase and the Omni Stock Purchase, (w) Surviving HQ
shall have contributed the Development Assets to the Parent, (x) Surviving HQ
and M Sub shall have consummated the Second Step Merger, as a result of which
(i) the Parent shall own all of the Capital Stock of M Sub (as the surviving
corporation of the Second Step Merger) and (ii) the common stockholders of
Surviving HQ shall have received Common Stock in exchange for their outstanding
shares of common stock of Surviving HQ as contemplated by the Second Step Merger
Agreement, (y) pursuant to the Exchange Agreement, Frontline shall have
exchanged with the Parent (the "Equity Exchange") 4,130,530 shares of Common
Stock acquired by FrontLine pursuant to the Second Step Merger (being those
shares attributable to the shares of common stock of Surviving HQ acquired by
FrontLine in the HQ Stock Purchase) for (I) 3,704,933.82 shares of Series A
Preferred Stock and (II) warrants to purchase up to 1,660,341.752 shares of
Common Stock, and (z) immediately after giving effect to the Equity Exchange,
pursuant to the Series A Preferred Stock Original Purchase Agreements, the
Equity Investors shall have purchased from FrontLine and the Parent for an
aggregate cash purchase price of

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<PAGE>   64

$195,000,000 (I) 4,782,692.010 shares of Series A Preferred Stock having an
aggregate liquidation preference of $195,000,000 (provided that at least
$100,000,000 of such shares of Series A Preferred Stock shall have been
purchased by Equity Investors which are not Affiliates of Vantas) and (II)
warrants to purchase 2,143,332.001 shares of Common Stock (the "Equity
Financing") (with the Second Step Merger and the related transactions described
above in this Section 4.16(d) being herein collectively called the
"Reorganization").

         (e) On the Transaction Date, (i) the Issuer shall have received gross
cash proceeds from loans in the aggregate amount of $225,000,000 under the
Senior Loan Agreement, (ii) the Issuer shall have received gross cash proceeds
from the Senior Subordinated Bridge Loan in the aggregate amount of $125,000,000
and (iii) Vantas shall have received approximately $25,871,000 (or such other
amount which is necessary so that the conditions in clauses (i) and (ii) of the
immediately succeeding sentence are satisfied) in cash from a capital
contribution by FrontLine pursuant to, and in accordance with the terms of, the
FrontLine Transaction Contribution Documents (the "FrontLine Transaction
Contribution"). On the Closing Date, (i) HQ shall have cash on hand of at least
$12,500,000 all of which shall be available to be used to make payments owing in
connection with the Transactions, (ii) after giving effect to the Transactions,
the Issuer shall have cash on hand of at least $10,000,000 for the working
capital requirements of the Issuer and its Subsidiaries, (iii) after giving
effect to the Transactions, the Issuer shall have available (but unutilized)
commitments under the Senior Loan Agreement of no less than $25,000,000 and (iv)
after giving effect to the Transactions, the Parent shall have cash on hand, in
an amount satisfactory to the Purchasers, to be used to cover operating expenses
relating to the Development Assets.

         (f) All of the terms, conditions and provisions of each of the Merger
Documents, the Equity Documents, the Frontline Transaction Contribution
Documents, the Senior Loan Documents and the other Transaction Documents shall
be satisfactory to the Purchasers and their counsel in all respects in form and
substance and no term, condition or provision thereof shall have been
supplemented, amended, modified or waived without the Required Purchasers' prior
written consent. Each of the Transaction Documents shall have been duly executed
and delivered by the parties thereto and shall be in full force and effect. Each
Purchaser shall have received a copy of each of the Transaction Documents
(including all amendments, modifications and supplements thereto to and
including the Closing Date), certified by a duly authorized officer of the
Issuer as true, correct and complete. All conditions to the consummation of the
Transactions shall have been satisfied (or waived with the written approval of
the Required Purchasers) and the Transactions shall have been consummated, or
will be consummated on the Closing Date, in accordance with the terms of such
agreements and applicable law.

         (g) (i) On the Transaction Date, the Indebtedness subject to the
Refinancing shall have been paid in full, all Liens securing such Indebtedness
terminated and released and the Purchasers shall have received a copy of a
"pay-off" letter, addressed to the Administrative Agent under the Senior Loan
Documents, with respect to

                                       57
<PAGE>   65

all debt being refinanced in the Refinancing (except to the extent (x)
incorporated (or deemed issued) as letters of credit under the L/C Reimbursement
Agreements and supported by the Existing L/C Back-Stop Arrangements or (y) cash
collateralized pursuant to the Existing L/C Cash Collateral Arrangements in each
case on the basis set forth in clause (j) below).

               (ii) On the Closing Date, the Senior Subordinated Bridge Loan
shall be paid in full, any Liens securing such Indebtedness terminated and
released and the purchasers shall have received a "pay-off" letter, addressed to
the Purchasers, with respect to the Senior Subordinated Bridge Loan.

         (h) After giving effect to the Transactions and the other transactions
contemplated hereby, on the Closing Date, none of the Parent, the Issuer or any
of their Subsidiaries shall have outstanding any Indebtedness or preferred stock
other than (i) the Senior Indebtedness and extensions of credit thereunder; (ii)
the Notes and the Guarantees; (iii) the Series A Preferred Stock; and (iv)
Indebtedness listed on Schedule 4.9A.

         (i) The Purchasers shall be reasonably satisfied that the aggregate
amount of the funds available to the Issuer under the Senior Subordinated Bridge
Loan, the Senior Loan Documents and the Equity Financing on the Transaction Date
were sufficient to (i) consummate the Stock Purchases and the Mergers; (ii)
consummate the Refinancing; and (iii) pay all fees, commissions and expenses
payable in connection with the Transactions.

         (j) (i) (i) On the Transaction Date, Paribas and Vantas shall have
entered into a letter of credit reimbursement agreement in form and substance
satisfactory to the Purchasers (as amended, modified or supplemented from time
to time, the "Paribas L/C Reimbursement Agreement"), pursuant to which all
Existing Letters of Credit issued by Paribas as issuing bank under the Existing
Vantas Credit Facility shall have been incorporated (or deemed issued) as
"Letters of Credit" thereunder.

               (ii) On the Transaction Date, Morgan Guaranty and Vantas shall
have entered into a letter of credit reimbursement agreement in form and
substance satisfactory to the Purchasers (as amended, modified or supplemented
from time to time, the "Morgan Guaranty L/C Reimbursement Agreement"), pursuant
to which all Existing Letters of Credit issued by Morgan Guaranty as issuing
bank under the Existing HQ Credit Facility shall have been incorporated (or
deemed issued) as "Letters of Credit" thereunder.

               (iii) On the Transaction Date, Bank Austria and Vantas shall have
entered into a letter of credit reimbursement agreement in form and substance
satisfactory to the Purchasers (as amended, modified or supplemented from time
to time, the "Bank Austria L/C Reimbursement Agreement" and, together with the
Paribas L/C Reimbursement Agreement and the Morgan Guaranty L/C Reimbursement
Agreement, the "L/C Reimbursement Agreements"), pursuant to which all Existing
Letters of Credit

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<PAGE>   66

issued by Bank Austria as issuing bank under the Existing Vantas Credit Facility
shall have been incorporated (or deemed issued) as "Letters of Credit"
thereunder.

               (iv) On the Transaction Date, FrontLine and Bankers Trust Company
shall have entered into a line of credit agreement (as amended, modified or
supplemented from time to time, the "Back-Stop Letter of Credit Agreement"),
pursuant to which Bankers Trust Company shall have issued one or more letters of
credit for the account of FrontLine in favor of Morgan Guaranty, Paribas and
Bank Austria as beneficiaries thereunder, and the Back-Stop Letter of Credit
Agreement shall be in full force and effect.

               (v) On the Transaction Date, First Union and HQ shall have
entered into a cash collateral agreement in form and substance satisfactory to
the Purchasers (as amended, modified or supplemented from time to time, the
"First Union L/C Cash Collateral Agreement"), pursuant to which all Existing
Letters of Credit issued by First Union as fronting bank under the Existing HQ
Credit Facility shall have been cash collateralized on a basis satisfactory to
the Purchasers (the "Existing L/C Cash Collateral Arrangements").

         (k) The Purchasers shall be reasonably satisfied with the
capitalization, the terms and conditions of any equity arrangements and the
corporate organizational structure of the Parent, the Issuer and their
Subsidiaries.

         Section 5.11 Appointment of Agent for Service. The Purchasers shall
have received an appointment, in form and substance satisfactory to the
Purchasers, of Corporation Service Company as each Credit Party's agent for
service of process.

         Section 5.12 Solvency Certificate. A solvency certificate, in form and
substance satisfactory to the Purchasers, certified by the Chief Financial
Officer of the Parent to the effect that, as of the Closing Date and before and
after giving effect to the initial purchase of Notes hereunder and the
consummation of the Transactions, the Issuer, on a stand-alone basis, is Solvent
and the Credit Parties, taken as a whole, are Solvent.

         Section 5.13 Fees. The fees required to be paid on the Closing Date
pursuant to Section 2.6 shall be paid concurrently with the issuance and sale of
Notes to be sold on the Closing Date. The expenses and disbursements incurred by
the Purchasers (including fees and expenses incurred by Paul, Hastings, Janofsky
& Walker LLP, O'Sullivan Graev & Karabell, LLP and Battle Fowler LLP and any
local or special counsel to the Purchasers) in connection with the preparation
of the Note Documents and the Transactions contemplated hereby, shall be paid by
the Credit Parties to the Purchasers on the Closing Date.

         Section 5.14 Wire Instructions. The Purchasers shall have received not
less than two Business Days prior to the Closing Date wire instructions prepared
by the Issuer as to all wire transfers or other payments to be effected on the
Closing Date in connection with the Transactions to be consummated on the
Closing Date pursuant to this Agreement, which wire instructions shall identify
the payor and payee of each such wire

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<PAGE>   67

transfer or payment, shall describe the manner of transfer or payment and shall
otherwise be satisfactory in form and substance to the Purchasers.

         Section 5.15 Transaction Costs; Availability. After giving effect to
the Transactions and payment of all such costs, the Issuer shall have excess
borrowing availability under its Senior Indebtedness of at least $25.0 million
as determined by the Purchasers. On the Closing Date after giving effect to the
Transactions the Issuer shall have Consolidated Total Indebtedness of not more
than $350.0 million.

         Section 5.16 HSR Filings. The Purchasers shall have received evidence
satisfactory to it that (i) any required notification under Section 7A of the
Clayton Act (Title II of the Hart-Scott-Rodino Antitrust Improvements Act 1976,
as amended (the "HSR Act")) and the rules and regulations promulgated thereunder
required in connection with the Transactions shall have been made, (ii) all
requests for additional information and documentary material from the Federal
Trade Commission or the Antitrust Division of the Department of Justice pursuant
to the HSR Act shall have been complied with and (iii) all waiting periods
applicable to the Transactions under the HSR Act have expired or been
terminated.

         Section 5.17 Certificate As to Use of Proceeds; Fees and Expenses.

         (a) The Purchasers shall have received a certificate of the Chief
Financial Officer of the Issuer certifying in reasonable detail (i) the Credit
Parties' use of the proceeds of the Notes and the Additional Series A Preferred
Stock Investment on the Closing Date, and (ii) the Credit Parties' use of the
proceeds of the Senior Indebtedness, the Senior Subordinated Bridge Loan, and
the Equity Financing and other sources of funds for the Transaction, in each
case, on the Transaction Date.

         (b) The Purchasers shall have received a certificate of the Chief
Financial Officer of the Issuer certifying in reasonable detail all fees and
expenses to be paid in connection with the Transactions and certifying that all
such fees and expenses have been paid in full on the Closing Date. The
Purchasers shall have received an Indemnity from Frontline, in form and
substance satisfactory to the Purchasers, that Frontline will pay any
Transaction fees and expenses which are not set forth in such Chief Financial
Officer's certificate.

         Section 5.18 Financial Statements, Projections and Report; Auditor's
Letter.

         (a) The Purchasers shall have received copies of the Financial
Statements and the projections attached as Schedule 4.5C, each of which shall be
satisfactory in all respects to the Purchasers, and shall not disclose any
material adverse differences in the business, properties, assets, liabilities,
results of operations, condition (financial or otherwise) or prospects of
Vantas, HQ and their respective Subsidiaries taken as a whole from that
previously disclosed to the Purchasers.

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<PAGE>   68

         (b) The Purchasers shall have received a letter, in form and substance
satisfactory to the Purchasers, from the independent auditors of the Issuer and
Vantas that, for the year ended December 31, 1999, Vantas and the Issuer, taken
together, (i) had historical Consolidated EBITDA of at least $48.0 million; (ii)
had historical one-time non-recurring expenses of not less than $5.0 million;
(iii) had a historical straight line rent cash adjustment of $10.0 million; (iv)
had, on a pro forma basis after giving effect to the creation of an
unconsolidated new development company affiliate and the transfer thereto of the
developments commenced in 1999, a decrease in Consolidated EBITDA of not less
than $8.0 million resulting from development losses; and (v) had, on a pro forma
basis after giving effect to the Transactions, positive adjustments to
Consolidated EBITDA in conformity with Regulation S-X under the Securities Act
of at least $15.0 million.

         (c) The Purchasers shall have received a compliance certificate, in
form and substance satisfactory to the Purchasers, from the Chief Financial
Officer of the Parent, certifying that Vantas and the Issuer, taken together,
(i) had, for the fiscal quarter ended March 31, 2000, historical Consolidated
EBITDA of at least $18.0 million (which amounts shall include straight line rent
adjustments and other adjustments satisfactory to the Purchasers) and (ii) have,
on a pro forma basis after giving effect to the Transactions, anticipated
annualized synergies (determined in conformity with Regulation S-X under the
Securities Act, for the fiscal year ending December 31, 2000, of at least $16.0
million.

         Section 5.19 Employment Agreement. Each of Gary Kusin and David Ruppert
shall have entered into an employment agreement, which shall contain a
non-competition agreement (the "Employment Agreement"), with the Credit Parties
satisfactory in all respects to the Purchasers. Each Employment Agreement shall
have been duly executed and delivered by the respective parties thereto and
shall be in full force and effect. The Purchasers shall have received a copy of
each Employment Agreement (including all amendments, modifications and
supplements thereto to and including the Closing Date), certified by a duly
authorized officer of the Issuer as true, correct and complete.

         Section 5.20 Insurance. Certificates of insurance and other evidence
satisfactory to the Purchasers that the insurance required under Section 9.4 is
in full force and effect.

         Section 5.21 Development Assets. The Issuer shall have distributed to
the Parent the Development Assets on terms and conditions satisfactory to the
Purchasers.

         Section 5.22 Registration Rights Agreement . Each of the parties
thereto shall have executed and delivered the Registration Rights Agreement.

         Section 5.23 Additional Series A Preferred Stock Investment. On the
Closing Date, pursuant to the Series A Preferred Stock Purchase Agreements, the
Equity Investors shall have purchased from the Parent for an aggregate cash
purchase price of $25,000,000 (I) 613,165.654 shares of Series A Preferred Stock
having an aggregate liquidation preference of $25,000,000 and (II) warrants to
purchase shares of Common Stock (the "Additional Series A Preferred Stock
Investment").

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<PAGE>   69

               Section 5.24 Closing Date Liquidity. The Purchasers shall have
received a certificate of the Chief Financial Officer of the Issuer certifying
that, on the Closing Date, after giving effect to the Transactions and the
payment of all costs and expenses in connection therewith, the sum of (a) the
aggregate amount of unrestricted cash (calculated in accordance with GAAP) of
the Issuer plus (b) the aggregate principal amount of available but unutilized
commitments under the B Revolving Loan Facility (as defined in the Senior Loan
Agreement), with trade payables, expenses and liabilities being paid in the
ordinary course of business (and no more than 25% of trade payables are more
than 60 days past due), shall be no less than $27,000,000.

         Section 6. Financial Statements and Information. The Credit Parties
will furnish to the Purchasers, until all of the Obligations have been
indefeasibly paid in full in cash and no Notes are outstanding:

               (a) Monthly Financial Statements. As soon as available and in any
event within 30 days after the end of each month, copies of the consolidated
balance sheets of the Parent and its Subsidiaries as of the end of such month
and the related consolidated and consolidating statements of operations and cash
flows for such month (including, without limitation, on a stand alone basis the
operations and cash flows of the Development Assets) and for the portion of the
fiscal year ended with the last day of such month, in each case setting forth
comparative figures for the corresponding month and elapsed portion of such
fiscal year for the prior fiscal year, and stating in comparative form the
corresponding figures from the consolidated budget of the Parent and its
Subsidiaries for such period, all Certified by the Chief Financial Officer of
the Parent;

               (b) Quarterly Financial Statements: Compliance Certificates. As
soon as available and in any event within 45 days after the end of each fiscal
quarter (other than the fourth fiscal quarter) in each fiscal year of the
Parent,

                    (i) copies of (x) the consolidated and consolidating balance
sheets of the Parent and its Subsidiaries as of the end of such month and the
related consolidated and consolidating statements of operations and cash flows
(including, without limitation, on a stand alone basis the operations and cash
flows of the Development Assets) for such fiscal quarter and for the portion of
the fiscal year ended with the last day of such fiscal quarter, and stating in
comparative form (A) the consolidated and consolidating figures as of the end of
and for the corresponding date and period in the previous fiscal year and (B)
the corresponding figures from the consolidated budget of the Parent and its
Subsidiaries for such period, and (y) the consolidating balance sheet and
related statements of income and cash flows showing the financial condition of
the Development Assets as of the close of such quarterly accounting period and
the results of operations of the Development Assets during such quarterly
accounting period and the then elapsed portion of the fiscal year, all of which
shall be certified by the Chief Financial Officer or controller of the Parent,
subject to normal year-end audit adjustments, all Certified by the Chief
Financial Officer of the Parent;

                    (ii) an Officer's Certificate of the Chief Financial Officer
of the Parent setting forth computations in reasonable detail showing whether or
not as at the

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<PAGE>   70

end of such fiscal quarter there existed any breach or violation of the
provisions of Section 9.1, 9.4, 9.7, 9.10, 9.11 or 9.16;

         (c) Annual Financial Statements: Compliance Certificates. As soon as
available and in any event within 90 days after the end of each fiscal year of
the Parent,

               (i) copies of the audited consolidated and unaudited
consolidating balance sheets of the Parent and its Subsidiaries, in each case as
of the end of such fiscal year, together with, in each case, the related audited
consolidated and unaudited consolidating statements of operations, stockholders'
equity and cash flows for such fiscal year, and the notes thereto, all in
reasonable detail and stating in comparative form (A) the respective audited
consolidated and unaudited consolidating figures as of the end of and for the
previous fiscal year and (B) the corresponding figures from the consolidated
budget of the Parent and its Subsidiaries for such fiscal year, (x) in the case
of each of such audited consolidated financial statements (excluding any
statements in comparative form to the corresponding figures from the
consolidated budget), accompanied by a report thereon of Ernst & Young LLP, or
other independent public accountants of recognized national standing selected by
the Parent and reasonably acceptable to the Required Purchasers (the
"Accountants"), which report shall be unqualified as to going concern and scope
of audit and shall state that such consolidated financial statements present
fairly, in all material respects, the consolidated financial position of the
Parent and its Subsidiaries as at the end of such fiscal year and their
consolidated results of operations, stockholders' equity and cash flows for such
fiscal year in conformity with GAAP and that the examination by the Accountants
in connection with such consolidated financial statements has been made in
accordance with generally accepted auditing standards, and (y) in the case of
such unaudited consolidating financial statements and any statements in
comparative form to the corresponding figures from the consolidated budget,
Certified by the Chief Financial Officer of the Parent; and

               (ii) a written statement of the Accountants (x) setting forth
computations in reasonable detail showing whether or not as at the end of such
fiscal year there existed any breach or violation of the provisions of Section
9.1, 9.4, 9.7, 9.10, 9.11 or 9.16, and (y) stating that in making the
examination necessary for their report on such financial statements they
obtained no knowledge of any event or condition constituting a Default or Event
of Default, or if such Accountants shall have obtained such knowledge,
specifying the nature and status thereof;

         (d) Officer's Compliance Certificates. Concurrently with the reports or
financial statements furnished pursuant to subsections (a), (b) and (c) of this
Section 6, an Officer's Certificate of the Chief Financial Officer of the Parent
stating that (I) based upon such examination or investigation and review of this
Agreement as in the opinion of the signer is necessary to enable the signer to
express an informed opinion with respect thereto, no Default or Event of Default
exists or has existed during such period or, if such a Default or Event of
Default shall exist or have existed, the nature and period of existence thereof
and what action the Parent has taken, is taking or proposes to take with respect
thereto; and (II) which, if any, Development Assets had been transferred to the

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Issuer during the period covered by such financial statements and the EBITDA
(calculated in the same way as Consolidated EBITDA except solely in respect of
such transferred Development Assets) generated by and the costs attributable to
such transferred Development Assets during such period;

         (e) Management Discussion and Analysis. Concurrently with the financial
statements furnished pursuant to subsections (a), (b) and (c) of this Section 6,
a brief management discussion and analysis of the financial condition and
results of operations of the Parent and its Subsidiaries, as of the end of and
for the period covered by such financial statements (including a comparison
thereof with the financial condition and results of operations of the Parent and
its Subsidiaries as of the end of and for the comparable period in the prior
fiscal year and to budget), and describing any significant events relating to
the Parent or its Subsidiaries occurring during such period, and in any event
showing the financial condition of each of the Business Suite Centers during
such fiscal period and the results of the operations of the Business Suite
Centers during such fiscal period and the then elapsed portion of the fiscal
year (including a comparison thereof with the results of operations of the
Business Suite Centers as of the end of and for the comparable period in the
prior fiscal year and to budget);

         (f) Stockholder Reports; SEC Filings. Immediately after the same are
available and in any event within 10 days thereof, copies of all such proxy
statements, financial statements, notices and other reports as any Credit Party
shall send or make available generally to its stockholders, and copies of all
regular and periodic reports, registration statements and other documents which
it shall file with the SEC or any other securities Governmental Body;

         (g) Management Letters. Promptly after the receipt thereof by the
Parent, and in any event within 10 days thereof, copies of any management
letters and any reports as to material inadequacies in accounting controls
(including reports as to the absence of any such inadequacies) submitted to the
Parent by the Accountants in connection with any audit of the Parent and its
Subsidiaries made by the Accountants;

         (h) Events of Default. Promptly (and in any event within 5 days) after
becoming aware of (i) the existence of any Default or Event of Default, an
Officer's Certificate of the Issuer specifying the nature and period of
existence thereof and what action the Issuer is taking or propose to take with
respect thereto; (ii) any Indebtedness of any Credit Party being declared due
and payable before its expressed maturity, or any holder of such Indebtedness
having the right to declare such Indebtedness due and payable before its
expressed maturity, because of the occurrence of any default (or any event
which, with notice and/or the lapse of time, shall constitute any such default)
under such Indebtedness, an Officer's Certificate of such Credit Party
describing the nature and status of such matters and what action such Credit
Party is taking or proposes to take with respect thereto; or (iii) (I) any
material default of the Parent, the Issuer or any of their Subsidiaries under
any material lease under which the Parent, the Issuer or any of their
Subsidiaries is a lessee and (II) any termination, renewal, expiration or
entering into of

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<PAGE>   72

any material lease under which the Parent, the Issuer or any of their
Subsidiaries is or will be a lessee;

         (i) ERISA Matters. Promptly and in any event within 15 days after any
Credit Party or any ERISA Affiliate knows or, in the case of a Pension Plan has
reason to know, that any event or condition referred to or described in Section
4.18 has occurred or exists, or is reasonably likely to occur or exist with
respect to any Pension Plan has occurred, an Officer's Certificate of the Issuer
setting forth information as to such event or condition and what action, if any,
such Credit Party or ERISA Affiliate is required or proposes to take with
respect thereto, together with any notices concerning such event or condition
which are (i) required to be filed by any Credit Party or ERISA Affiliate or the
plan administrator of any such Pension Plan controlled by any Credit Party or
ERISA Affiliate with the Internal Revenue Service or the PBGC, or (ii) received
by any Credit Party or ERISA Affiliate from any plan administrator of a Pension
Plan not under their control or from a Multiemployer Plan. Within five Business
Days after the annual report (Form 5500) of each Plan or Pension Plan is filed
with the Internal Revenue Service, a complete copy thereof (including schedules
and attachments) to the Purchasers;

         (j) Casualties and Takings. Promptly following, and in any event within
ten Business Days of any Casualty or Taking involving Property of any Credit
Party with a value equal to or greater than $1,000,000, an Officer's Certificate
of the Issuer describing the nature and status of such occurrence;

         (k) Press Releases. To the extent not otherwise provided for in Section
13.7, as soon as available, any press release or other public announcement or
statement by any Credit Party;

         (l) Material Adverse Effect. Promptly after becoming aware of any
Material Adverse Effect with respect to which notice is not otherwise required
to be given pursuant to this Section 6, an Officer's Certificate of the Issuer
setting forth the details of such Material Adverse Effect and stating what
action the Issuer has taken or proposes to take with respect thereto;

         (m) Litigation and Proceedings. Promptly (and in any event within 15
days) after any Credit Party knows of (i) the institution of, or threat of, any
action, suit, proceeding, governmental investigation or arbitration against or
affecting any Credit Party or any Property of any of them, or (ii) any material
development in any such action, suit, proceeding, governmental investigation or
arbitration, which, in either case, if adversely determined, is reasonably
likely to have a Material Adverse Effect, an Officer's Certificate of the Issuer
describing the nature and status of such matter in reasonable detail;

         (n) Annual Budget. Not later than 30 days after the beginning of each
fiscal year of the Parent, a copy of a consolidated and consolidating budget of
the Parent and its Subsidiaries prepared by the Parent for such fiscal year
(including budgeted statements of earnings as well as sources and uses of cash
and balance sheets and budgeted openings of new business centers which may be
made available on a quarterly

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basis only), which shall include at minimum a projected balance sheet and a
projected statement of operations and cash flows for each month in such fiscal
year, accompanied by the statement of the chief financial officer or controller
of the Parent to the effect that, to the best of his knowledge, the budget is a
reasonable estimate for the period covered thereby;

               (o) Notices to Holders of Senior Indebtedness. To the extent not
otherwise delivered to the Purchasers pursuant to this Agreement, copies of all
notices, reports, certificates and other information (other than routine
documentation), and any borrowing base reports or other reports as to collateral
eligibility or borrowing availability reasonably requested by the Purchasers,
furnished to the holders of Senior Indebtedness or to any agent or
representative of such holders in each case promptly after the same are so
furnished;

               (p) Insurance Report. At least once in each fiscal year, a report
of a reputable insurance broker with respect to all insurance maintained by the
Parent and its Subsidiaries, together with a certificate of insurance evidencing
the effectiveness of the policies of insurance required to be maintained by the
provisions of Section 8.4(a);

               Reconciliation of Accrued Rent Liabilities. In connection with
any financial information furnished by the Issuer which contains a calculation
of Consolidated EBITDA, the Issuer shall also furnish a statement reconciling
any increase or decrease in accrued rent liabilities; and

               (q) Other Information. Any other information, including financial
statements and computations, relating to the performance of obligations arising
under this Agreement and/or the affairs of any Credit Party that the Purchasers
owning more than 20% of the outstanding principal amount of the Notes may from
time to time reasonably request and which is capable of being obtained, produced
or generated by such Credit Party.

         It is further understood and agreed that, for the purpose of effecting
compliance with Rule 144A promulgated by the SEC in connection with any resales
of Notes or Warrants that may hereafter be effected pursuant to the provisions
of such Rule, (i) each prospective purchaser of Notes or Warrants designated by
a Purchaser thereof shall have the right to obtain from each Credit Party, upon
the written request of such Purchaser, copies of (A) the consolidated balance
sheet of such Credit Party and its Subsidiaries as of the end of then most
recently completed fiscal year of such Credit Party (or, if such fiscal year
shall have ended within the preceding 90 days, as of the end of the next
preceding fiscal year), together with the related consolidated statements of
operations, stockholders' equity and cash flows for the fiscal year then ended,
(B) similar financial statements for the two preceding fiscal years (which
financial statements, and the financial statements referred to in clause (A) of
this paragraph, shall be audited if audited financial statements are available
at such time), (C) a consolidated balance sheet of such Credit Party and its
Subsidiaries as of the end of then most recently completed fiscal quarter of
such Credit Party (or, if such fiscal quarter shall have ended within the
preceding 60 days, as of the end of the next preceding fiscal quarter), together
with the

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<PAGE>   74

related consolidated statements of operations, stockholders' equity and cash
flows for the portion of the current fiscal year then ended, and (D) any other
information that is necessary to comply with such Rule, and (ii) such Purchaser
and each such prospective Purchaser shall have the right to obtain from each
Credit Party, upon the written request of such Purchaser, a very brief statement
of the nature of the business of such Credit Party and the products and services
it offers, dated as of a date within 12 months prior to the date of such
request.

         The Issuer will keep at its principal executive office a true copy of
this Agreement, and cause the same to be available for inspection at said office
during normal business hours by the Purchasers or by any prospective Purchaser
of Notes designated in writing by any Purchaser holding such Notes.

         Section 7. Inspection of Properties and Books; VCOC Matters. The
Purchasers, until all of the Obligations have been indefeasibly paid in full in
cash and no Notes are outstanding, shall have the right (a) to visit and inspect
any of the Properties of the Credit Parties, (b) to examine their books of
account and records, (c) to make copies and extracts therefrom at their expense,
and (d) to discuss their affairs, finances and accounts with, and to be advised
as to the same by, their officers and employees and their independent public
accountants (and by this provision the Parent and the Issuer authorizes the
Accountants to discuss their affairs, finances and accounts and those of their
Subsidiaries, whether or not any of such representatives is present, it being
understood that nothing contained in this Section 7 is intended to confer any
right to exclude any such representative from such discussions), during normal
business hours and upon prior notice to the Parent. The Purchasers shall be
entitled to meet with the senior management of the Credit Parties at least once
during each fiscal quarter of the Credit Parties to discuss the Credit Parties'
and their Subsidiaries' financial statements, business, assets, operations and
prospects. Each Credit Party shall permit any representatives of Blackstone
Partners, Chase, Capital Trust and any other Purchaser which at the time it
becomes a Purchaser hereunder is or is intended to become a venture capital
operating company (as defined in 29 C.F.R. Section 2510.3-101), to inspect and
copy the books and records of the Credit Parties, the right to inspect the
property of the Credit Parties, the right to receive all periodic financial
statements of the Credit Parties, the right to consult with and advise
management and the Boards of Directors of each Credit Party, the right to
receive all material and information provided to the Boards of Directors of each
Credit Party and the right (Section 9.15 hereof notwithstanding) to attend all
meetings of the Board of Directors of each Credit Party as an observer, together
with such other rights that any such Purchaser and their respective affiliates
may require from time to time to maintain their status as a venture capital
operating company (such other rights subject to approval by the Issuer, not to
be unnecessarily withheld), if applicable. Each of the Credit Parties shall
comply with all requirements and take all actions necessary to maintain its
status as an "operating company" (other than a "venture capital operating
company"), as such terms are defined in 29 C.F.R. Section 2510.3-101. Each of
the Credit Parties agrees to certify to each Purchaser such Credit Party's
compliance with the requirements of the immediately preceding sentence and that
the representations and warranties in Section 4.34 are true and correct within
10 days after the end of each

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<PAGE>   75

calendar year. The obligations of the Credit Parties under the immediately
preceding three sentences of this Section 7 shall survive the payment or
prepayment in full of any Obligations and shall be applicable to the Purchasers
specified therein so long as any Obligations are outstanding to such Purchaser
or such Purchaser holds Capital Stock (including any Warrants) of any Credit
Party which do not constitute "publicly-offered securities" as such term is
defined in 29 C.F.R. Section 2510.3-101(b).

         Section 8. Affirmative Covenants. The Parent and the Issuer jointly and
severally covenant and agree that, until all of the Obligations have been
indefeasibly paid in full in cash and no Notes are outstanding:

         Section 8.1 Payment of Principal, Prepayment Charge and Interest. The
Issuer will duly and punctually pay the principal of, Prepayment Premium and
Qualified Public Offering Prepayment Premium (if any) and interest on the Notes
and will timely pay and perform all other Obligations in accordance with the
terms the Note Documents. Each Credit Party will comply with all of the
covenants, agreements and conditions contained in the Note Documents.

         Section 8.2 Payment of Taxes and Claims. The Credit Parties will pay
before they become delinquent:

         (a) all Charges imposed upon any Credit Party (or any other
Subsidiaries of any Credit Party which are part of any affiliated group, within
the meaning of Section 1504(a)(1) of the Code, with any Credit Party) or their
sales, income, profits or capital or upon their Property, real, personal or
mixed, or upon any part thereof; and

         (b) all claims for labor, materials, rent and supplies which, if
unpaid, would result in the creation of a Lien upon Property of any Credit
Party; provided, that the Charges and claims described in Section 9.2(a) and (b)
need not be paid to the extent that (i) payment thereof is being diligently
contested in good faith and by appropriate proceedings, (ii) adequate book
reserves have been established with respect thereto in accordance with GAAP, and
(iii) any Liens securing such taxes, claims, charges and levies are Permitted
Liens. Each Credit Party will timely file, and will cause its Subsidiaries to
file, all tax returns required to be filed in connection with the payment of
taxes required by this Section 9.2.

         Section 8.3 Maintenance of Properties, Records and Corporate Existence.
Each Credit Party will:

         (a) maintain their respective Properties in good condition, reasonable
wear and tear excepted, and make all necessary renewals, repairs, replacements,
additions, betterments, and improvements thereto;

         (b) keep books of records and accounts in which full and correct
entries will be made of all their respective business transactions and will
reflect in their financial

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statements adequate accruals and appropriations to reserves, all in accordance
with GAAP at the time in effect and consistently applied;

         (c) cause its fiscal years to end on December 31 of each year and its
first three fiscal quarters to end on March 31, June 30 and September 30;

         (d) except to the extent otherwise permitted under Section 9.4, do or
cause to be done all things necessary to preserve and keep in full force and
effect its corporate or organizational existence, and its material rights,
powers and franchises, including any necessary qualification or licensing in any
foreign jurisdiction, provided that in the ordinary course of its business any
Credit Party shall be permitted to discontinue any rights, powers or franchises
if such Credit Party determines in its reasonable business judgment that such
right, power or franchise is no longer advantageous and the discontinuance
thereof could not reasonably be expected to have a Material Adverse Effect;

         (e) comply with all applicable Statutes, Orders, franchises,
authorizations, licenses and permits of, and all applicable restrictions imposed
by, any Governmental Body, in respect of the conduct of its business and the
ownership of its Properties (including all applicable Statutes and Orders
relating to Environmental Laws), the violation of which could reasonably be
expected to result in a Material Adverse Effect; and

         (f) not generate, use, treat, store, release or dispose of, or permit
the generation, use, treatment, storage, release or disposal of Hazardous
Materials on any Property, or transport or permit the transportation of
Hazardous Materials to or from any Property, other than in compliance in all
material respects with applicable law. If any Credit Party receives notice or
becomes aware of any Environmental Matter or contamination with Hazardous
Materials that relates to any of them or to its Properties which could
reasonably be expected to result in liability to the Credit Parties in excess of
$250,000, then the Credit Parties shall promptly provide written notice thereof
to the Purchasers and, upon written request from the Required Purchaser, shall
provide such Purchaser with copies of any reports, certificates, engineering
studies or other written material or data as the Required Purchaser may
reasonably request (it being understood that the Credit Parties shall not be
required to employ any consultants, engineers or other persons to prepare any
such reports).

         Section 8.4 Insurance.

         (a) The Credit Parties will keep its insurable Property adequately
insured at all times by financially sound and reputable insurers; maintain such
other insurance, to such extent and against such risks, including fire and other
risks insured against by extended coverage, as is customary with companies in
the same or similar businesses operating in the same or similar locations,
including public liability insurance against claims for personal injury or death
or property damage occurring upon, in, about or in connection with the use of
any Property owned, occupied or controlled by it; and maintain such other
insurance as may be required by law.

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         (b) The Credit Parties will notify the Purchasers immediately whenever
any separate insurance concurrent in form or contributing in the event of loss
with that required to be maintained under this Section 8.4 is taken out by the
Issuer; and promptly deliver to the Purchasers a duplicate original copy of such
policy or policies.

         Section 8.5 Future Guarantors. (a) Promptly upon any Person becoming a
Wholly-owned Domestic Subsidiary of the Parent, the Parent shall immediately
provide written notice thereof to the Purchasers, and shall promptly cause such
Subsidiary to become a party to the Guarantee. The Parent shall also deliver an
opinion of counsel to such Subsidiary covering such legal matters with respect
to such Subsidiary becoming a party to the Guarantee as the Required Purchasers
may reasonably request.

         (b) In the event that (i) more than 66-2/3% of the Capital Stock of any
Subsidiary (that is not already a Guarantor) is pledged to secure the Senior
Indebtedness or (ii) any Subsidiary (that is not already a Guarantor), directly
or indirectly, incurs, guarantees or secures through the granting of Liens, the
payment of any Senior Indebtedness, in each case, the Parent and the Issuer
shall immediately provide written notice thereof to the Purchasers, and shall
promptly cause such Subsidiary to become a party to the Guarantee. The Parent
and the Issuer hereby agree that, following any request by the Required
Purchasers to do so, Parent shall, and shall cause its Subsidiaries to, take
such actions (including, without limitation, the delivery of appropriate legal
opinions and guarantees governed by local law) under the local law of any
jurisdiction with respect to which such actions have not already been taken as
are determined by the Purchasers to be necessary or desirable in the opinion of
Required Purchasers in order to for such Person to fully and effectively
guarantee the Obligations under the laws of such jurisdictions and to enable the
Purchasers to enforce such guarantees.

         Section 8.6 ERISA. Each Credit Party and each ERISA Affiliate will (i)
continue to meet the representations and warranties set forth under Section 4.18
(including in respect of Foreign Pension Plans) of this Agreement, (ii) not
establish or adopt any new Pension Plan or Foreign Pension Plan or modify any
existing Pension Plan or Foreign Pension Plan so as to increase its obligations
thereunder (except in the ordinary course of business, consistent with past
practice) which, in the opinion of the Required Purchasers, could have a
Material Adverse Effect and (iii) not establish or adopt an employee welfare
benefit plan as defined in Section 3(1) of ERISA that provides for
employer-provided benefits for employees after they leave the employment of the
Credit Parties or ERISA Affiliates (other than any such benefits required to be
provided by the Consolidated Omnibus Budget Reconciliation Act of 1985 or other
similar federal or state law).

         Section 8.7 Intellectual Property Rights. The Parent will, and will
cause each of its Subsidiaries to, make all filings in connection with the
transfer of the material Intellectual Property rights in any acquisition. The
Parent will, and will cause each of its Subsidiaries to, maintain in full force
and effect all Intellectual Property rights necessary or appropriate to the
business of the Parent or any Subsidiary of the Parent and

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take no action (including, without limitation, the licensing of Intellectual
Property), or fail to take an action, as the case may be, in connection with
such Intellectual Property rights which could reasonably be expected to result
in a Material Adverse Effect. The Parent will, and will cause each of its
Subsidiaries to, diligently prosecute all pending applications filed in
connection with seeking or seeking to perfect the Intellectual Property rights
and take all other reasonable actions necessary for the protection and
maintenance of the Intellectual Property rights necessary or appropriate to the
business of the Parent or any Subsidiary of the Parent at all times from and
after the Closing Date other than any such actions the failure of which, in the
aggregate, could not reasonably be expected to have a Material Adverse Effect.

         Section 8.8 Good Standing of Subsidiaries. Within thirty (30) days
following the Closing Date, the Parent shall have caused each of its
Subsidiaries to take all action as may be required to ensure that each such
Subsidiary is in good standing under the laws of the jurisdiction of its
organization.

         Section 8.9 Contributions; Payments; etc. The Parent will, upon its
receipt thereof, contribute as an equity contribution to the capital of the
Issuer, any cash proceeds received by the Parent from any asset sale, any
incurrence of Indebtedness, any insurance or condemnation proceeds, any tax
refunds or any sale or issuance of its equity or any cash capital contributions
(other than equity proceeds received pursuant to the Equity Financing).

         Section 8.10 [Intentionally omitted.]

         Section 8.11 [Intentionally Omitted]

         Section 8.12 Permitted Acquisitions.

         (a) Subject to the remaining provisions of this Section 8.12 applicable
thereto and the requirements contained in the definition of Permitted
Acquisition, the Issuer and its Wholly-owned Subsidiaries may from time to time
after the Closing Date effect Permitted Acquisitions, so long as with respect to
each Permitted Acquisition:

               (i) the Issuer demonstrates that no Default or Event of Default
is in existence at the time of the consummation of such Permitted Acquisition or
would exist after giving effect thereto and all representations and warranties
contained herein and in the other Note Documents shall be true and correct in
all material respects with the same effect as though such representations and
warranties were made on and as of the date of such Permitted Acquisition (both
before and after giving effect thereto);

               (ii) the Issuer shall have given the Purchasers at least 15 days
prior written notice of any such Permitted Acquisition (each such notice, a
"Permitted Acquisition Notice"), which notice shall (A) contain the estimated
date such Permitted Acquisition is scheduled to be consummated, (B) attach a
true and correct copy of the draft purchase agreement, letter of intent,
description of material terms or similar agreement executed by the Issuer and
the seller in connection with such Permitted

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<PAGE>   79

Acquisition, (C) contain the estimated aggregate purchase price of such
Permitted Acquisition (including, without limitation, the amount of Capitalized
Lease Obligations assumed in connection with the Permitted Acquisition) and the
amount of related costs and expenses and the intended method of financing
thereof, (D) contain a description of the Permitted Seller Notes to be issued by
the Issuer in connection with such Permitted Acquisition, (E) contain a
description of any Permitted Earn-Out Debt to be incurred by the Issuer in
connection with such Permitted Acquisition and the maximum potential liability
of the Issuer with respect thereto, (F) contain a description of the Acceptable
Common Stock and/or Seller Preferred Stock to be issued by the Parent in
connection with such Permitted Acquisition, (G) specify the aggregate principal
amount of the revolving loans to be incurred by the Issuer under the Senior Loan
Agreement in connection with such Permitted Acquisition, and (H) specify the
amount of cash on hand to be used to finance such Permitted Acquisition;
provided, however, that if the estimated aggregate purchase price (including,
without limitation, the amount of Capitalized Lease Obligations assumed in
connection with the Permitted Acquisition) of such Permitted Acquisition is less
than $1,000,000, such notice need not contain the information described in
clause (B) above unless the Required Purchasers request such information;
provided further, however, in the event that after delivery of the documentation
described in clause (B) above any material economic terms of the Permitted
Acquisition shall be amended in any material way, then promptly after such
amendment the Issuer shall provide the Purchasers written notice of such
changes;

               (iii) the Issuer shall have given the Purchasers such other
information related to the Person or business, division or product line being
acquired and the Permitted Acquisition as the Required Purchasers shall
reasonably request;

               (iv) (A) as soon as available but not later than the date of the
consummation of such Permitted Acquisition, a copy of the executed purchase
agreement and all related agreements, schedules and exhibits with respect to
such Permitted Acquisition and (B) at the time of delivery of the purchase
agreement, a certification from the Issuer as to the purchase price for the
proposed Permitted Acquisition (including, without limitation, the amount of
Capitalized Lease Obligations assumed in connection with the Permitted
Acquisition) and the estimated amount of all related costs, fees and expenses
and that, except as described, there are no other amounts which will be payable
in connection with the respective Permitted Acquisition;

               (v) with respect to Permitted Acquisitions effected during any
twelve-month period (including Permitted Acquisitions effected during the
twelve-month period prior to the Closing Date), the sum (without duplication) of
(A) the aggregate amount of cash paid as consideration by the Issuer or any of
its Subsidiaries in connection with such Permitted Acquisitions (including
proceeds from the incurrence of revolving loans under the Senior Loan Agreement
used for such purpose), (B) the aggregate amount of Indebtedness incurred by the
Issuer or any of its Subsidiaries in connection with such Permitted Acquisitions
(including the aggregate amount of Senior Indebtedness, the aggregate amount
(determined by using the face amount of the debt or the amount payable at
maturity, whichever is greater) of Permitted Seller Notes and the maximum

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<PAGE>   80

potential liability with respect to the Permitted Earn-Out Debt issued in
connection with such Permitted Acquisitions) and (C) the amount of Capitalized
Lease Obligations assumed in connection with such Permitted Acquisitions shall
not exceed $30,000,000 during such rolling twelve-month; and, with respect to
each Permitted Acquisition, the sum (without duplication) of the foregoing
clauses (A), (B) and (C), shall not exceed $7,500,000;

               (vi) except in connection with Permitted Acquisitions consisting
of Start-Up Costs, calculations are made by the Parent of the Acquired EBITDA of
the Person or business, division or product line being acquired pursuant to the
respective Permitted Acquisition (determined in accordance with the definition
of Acquired EBITDA contained herein, but treating references therein and in any
other defined terms used in determining Acquired EBITDA to "the Parent" to
instead be references to the Person or business, division or product line being
acquired pursuant to the respective Permitted Acquisition), and the amount
thereof shall exceed $1 for the period of four consecutive fiscal quarters
(taken as one accounting period and including fiscal quarters ending prior to
the Closing Date) most recently ended prior to the date of the Permitted
Acquisition (the "Four Quarter Calculation Period"); provided, however, in the
case of calculations based on unaudited financial statements, the Required
Purchasers shall be reasonably satisfied that the Acquired EBITDA of such Person
or business, division or product line being acquired pursuant to the respective
Permitted Acquisition exceeds $1 for the Four Quarter Calculation Period;
provided further, however, that, so long as the Permitted Acquisition Notice has
been given as required above and so long as the Issuer has furnished the
Purchasers information with respect to the Acquired EBITDA of such Person or
business, division or product line being acquired pursuant to the respective
Permitted Acquisition, if the Required Purchasers have not notified the Issuer
on or prior to the fifth Business Day prior to the consummation of the Permitted
Acquisition that the Required Purchasers have not yet been reasonably satisfied
that the $1 threshold is satisfied, the Required Purchasers shall be deemed for
purposes of this clause (vi) to be so satisfied;

               (vii) the Required Purchasers shall be satisfied in their
reasonable discretion that the proposed Permitted Acquisition will not
reasonably likely result in materially increased liabilities (contingent or
otherwise) of the Parent or any of its Subsidiaries other than Indebtedness
incurred in accordance with the provisions of this Agreement (including, without
limitation, tax, ERISA or environmental liabilities); provided that, so long as
the Permitted Acquisition Notice has been given as required above and so long as
the Issuer has furnished each Purchaser, following request by the Required
Purchasers, information with respect to liabilities of the type described in
this clause with all information so requested, if any Purchaser has not notified
the Issuer or the Required Purchasers on or prior to the fifth day prior to the
consummation of the Permitted Acquisition that such Purchaser has not yet been
satisfied that the proposed Permitted Acquisition would not be reasonably likely
to result in materially increased liabilities of the Parent or any of its
Subsidiaries, such Purchaser shall be deemed for purposes of this clause (vii)
to be so satisfied;

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               (viii) recalculations are made by the Parent and the Issuer of
compliance with the covenants contained in Sections 9.1, 9.10 and 9.14 on a Pro
Forma Basis, and such recalculations shall show that such covenants would have
been complied with throughout the Two Quarter Calculation Period on a Pro Forma
Basis;

               (ix) the Parent in good faith believes, based on calculations
made by the Parent, on a Pro Forma Basis, (as if the Two Quarter Calculation
Period were the six-month period following the date of the consummation of the
respective Permitted Acquisition) that the financial covenants contained in such
Sections 9.1, 9.10 and 9.14 will continue to be met for the six-month period
following the date of the consummation of the respective Permitted Acquisition;

               (x) in no event will the aggregate amount of Start-Up Costs
relating to any Permitted Acquisition with respect to any one new executive
office suite center exceed $3,000,000;

               (xi) with respect to each Permitted Acquisition, the Issuer shall
conduct the customary due diligence set forth on Schedule 8.12 for the prior
Four Quarter Calculation Period which shall be performed in accordance with
standards established by the American Institute of Certified Public Accountants;

               (xii) with respect to Permitted Acquisitions with an aggregate
consideration equal to or greater than $10,000,000, the Issuer shall engage a
"big five" accounting firm or other accounting firm acceptable to the Required
Purchasers to perform financial due diligence set forth on Schedule 8.12 and
produce a report of their findings which shall be delivered to the Purchasers
and be acceptable to the Required Purchasers in their sole judgment and to the
extent a Purchaser has not indicated in writing within five Business Days after
receipt of the materials required by this Section 8.12(a)(xii) that it is not
acceptable to such Purchaser then it shall be deemed to be acceptable to such
Purchaser; provided, however, that this Section 8.12(xii) shall not apply to
Permitted Acquisitions which have been audited by a "big five" accounting firm
within four months prior to the date of closing of a Permitted Acquisition; and

               (xiii) prior to the consummation of the respective Permitted
Acquisition, the Parent shall furnish the Purchasers an officer's certificate
executed by the chief financial officer of the Parent, certifying as to
compliance with the requirements of preceding clauses (i) through (xii) and
containing the calculations required by preceding clauses (v), (vi), (viii),
(ix) and (x). The consummation of each Permitted Acquisition shall be deemed to
be a representation and warranty by each of the Parent and the Issuer that all
conditions thereto have been satisfied and that same is permitted in accordance
with the terms of this Agreement, which representation and warranty shall be
deemed to be a representation and warranty for all purposes hereunder,
including, without limitation, Sections 4 and 11.

               (b) At the time of each Permitted Acquisition after the Closing
Date involving the creation or acquisition of a Subsidiary, not less than 100%
of the Capital

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Stock of such Subsidiary shall be directly owned by the Issuer or a Wholly-owned
Subsidiary of the Issuer which is a Guarantor.

               (c) The Issuer shall cause each Subsidiary which is formed to
effect, or is acquired pursuant to, a Permitted Acquisition after the Closing
Date to, prior to or on the date of the respective Permitted Acquisition, become
a party to the Guarantee and take such other actions are required under Section
8.5.

               Section 8.13 FrontLine Indemnification Contribution Agreement.
Within 30 days following the Closing Date, the Parent and FrontLine shall have
duly authorized, executed and delivered an indemnification contribution
agreement, substantially in the form of Exhibit O to the Senior Loan Agreement
and otherwise in form and substance satisfactory to the Required Purchasers,
whereby FrontLine agrees to contribute to the Parent proceeds received under the
Indemnification Agreement (as amended, modified or supplemented from time to
time, the "FrontLine Indemnification Contribution Agreement") and the FrontLine
Indemnification Contribution Agreement shall be in full force and effect.

         Section 9. Negative and Maintenance Covenants. The Parent and the
Issuer jointly and severally covenant and agree that, until all of the
Obligations have been indefeasibly paid in full in cash and no Notes are
outstanding:

               Section 9.1 Restrictions on Indebtedness. The Credit Parties will
not incur, create, assume, guarantee or in any way become liable for, or permit
to exist, Indebtedness other than:

               (a) Indebtedness pursuant to the Note Documents;

               (b) Senior Bank Debt; provided, however, that in no event shall
the aggregate outstanding principal amount of the Senior Bank Debt under this
clause (b) (including the face amount of all letters of credit and other
contingent obligations (whether issued or guaranteed by the holder of the Senior
Indebtedness) from time to time outstanding in connection therewith) at any time
exceed the sum of (i) $250,000,000 plus (ii) an amount, not to exceed
$25,000,000, equal to the amount of any extensions of credit (including letters
of credit) under the Senior Loan Documents so long as on the date of such
extension of credit the Total Leverage Ratio (as defined in the Senior Loan
Agreement as in effect on the date hereof), is less than 3.75:1.00 (calculated
on a pro forma basis to give effect to each extension of credit under the Senior
Loan Documents to occur on such date);

               (c) Other Senior Indebtedness (including without limitation
Senior Bank Debt) if on the date of incurrence thereof and immediately after
giving pro forma effect thereto and the use of the proceeds thereof, the Senior
Leverage Ratio is less than 1.75:1.00; provided that, prior to the incurrence
thereof, the Purchasers shall have received an Officer's Certificate of the
Issuer stating that such Other Senior Indebtedness is permitted to be incurred
under this Section 9.1(c);

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<PAGE>   83

               (d) Indebtedness of the Credit Parties existing on the Closing
Date, as set forth on Schedule 4.9A attached hereto (excluding the Senior
Indebtedness) but without giving effect to any refinancings, renewals or
increases in the principal amount thereof, except for refinancings, renewals and
extensions thereof which do not increase the principal amount of Indebtedness
being refinanced, renewed and/or extended;

               (e) Indebtedness secured by Liens permitted by any of subsections
(a) through (d), inclusive, of Section 9.2;

               (f) (i) Indebtedness of the Issuer evidenced by Permitted Seller
Notes or constituting Permitted Earn-Out Debt issued in accordance with the
requirements of Section 8.12 so long as the aggregate amount outstanding at any
time shall not exceed $4,000,000 and (ii) Capitalized Lease Obligations of
Subsidiaries of the Issuer assumed in connection with Permitted Acquisitions and
incurred in accordance with Section 8.12, so long as such Capitalized Lease
Obligations were not incurred in anticipation or contemplation of such Permitted
Acquisitions and the Capitalized Lease Obligations are obligations solely of the
entity acquired in such Permitted Acquisition or formed by the Issuer to effect
such Permitted Acquisition;

               (g) Indebtedness of the Issuer under any Interest Rate Protection
or Other Hedging Agreement to the extent such is entered into to satisfy the
requirements of Section 7.11 of the Senior Loan Agreement (as in effect on the
date hereof) and such other non-speculative Interest Rate Protection or other
Hedging Agreements which may be entered into from time to time by the Issuer and
which the Issuer in good faith believes will provide protection against
fluctuations in interest rates with respect to floating rate Indebtedness then
outstanding, and permitted to remain outstanding, pursuant to the other
provisions of this Section 9.1;

               (h) Indebtedness of the Issuer and its Subsidiaries evidenced by
Capitalized Lease Obligations to the extent permitted pursuant to Section 9.10;
provided that the aggregate amount of Indebtedness evidenced by Capitalized
Lease Obligations under all Capital Leases outstanding under this clause (h) at
any one time shall not exceed $10,000,000 (so long as the amount of Capitalized
Lease Obligations incurred in any one fiscal year of the Parent does not exceed
the amount of Capital Expenditures (other than Permitted Acquisitions) the
Issuer and its Subsidiaries is permitted to incur during such fiscal year in
accordance with Section 9.10);

               (i) Indebtedness constituting Intercompany Loans to the extent
permitted by Section 9.7(b)(x);

               (j) guaranties by the Issuer or any of its Subsidiaries of leases
entered into in the ordinary course of business by any Subsidiary of the Issuer;
and

               (k) additional Indebtedness (including without limitation Senior
Bank Debt) in an aggregate principal amount at any time outstanding not to
exceed $25,000,000.

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         Notwithstanding the foregoing, (i) no Credit Party will create or incur
any Indebtedness which, under the terms of the documentation pursuant to which
such Indebtedness is created or incurred, is subordinated in right of payment to
any other Indebtedness of the Credit Parties (other than the Senior
Indebtedness), unless such Indebtedness is also subordinated in right of
payment, in the same manner and to the same extent, to the Obligations, and (ii)
no Credit Party shall have outstanding, create or incur any Indebtedness owing
to any other Credit Party or any Affiliate or employee of any Credit Party
unless such Indebtedness is expressly subordinated to the Notes and other
Obligations in a manner and on terms satisfactory to the Required Purchasers.

               Section 9.2 Restrictions on Liens. The Credit Parties will not
directly or indirectly, create, assume or suffer to exist any Lien upon any of
their respective Properties or assets whether now owned or hereafter acquired,
except for:

               (a) inchoate Liens with respect to the Parent or any of its
Subsidiaries for taxes (including social security charges in France) not yet due
or Liens for taxes (including social security charges in France) being contested
in good faith and by appropriate proceedings for which adequate reserves have
been established in accordance with generally accepted accounting principles;

               (b) unperfected Liens in respect of property or assets of the
Parent or any of its Subsidiaries imposed by law or, in the case of landlord
liens, pursuant to contractual rights, which were incurred in the ordinary
course of business and do not secure Indebtedness for borrowed money, such as
carriers', warehousemen's, materialmen's, mechanics' and landlords' liens and
other similar Liens arising in the ordinary course of business, and (i) which do
not in the aggregate materially detract from the value of the Parent's or any of
its Subsidiaries' property or assets or materially impair the use thereof in the
operation of the business of the Parent or its Subsidiaries or (ii) which are
being contested in good faith by appropriate proceedings, which proceedings have
the effect of preventing the forfeiture or sale of the property or assets
subject to any such Lien;

               (c) Liens (other than any Lien imposed by ERISA) on property of
the Parent or any of its Subsidiaries incurred or deposits made in the ordinary
course of business in connection with (i) workers' compensation, unemployment
insurance and other types of social security or (ii) to secure the performance
of tenders, statutory obligations, surety and appeal bonds, bids, leases,
government contracts, trade contracts, performance and return-of-money bonds and
other similar obligations (exclusive of obligations for the payment of borrowed
money); provided that the aggregate amount of cash and the fair market value of
the property encumbered by Liens described in this clause (c)(ii) (excluding the
amount of cash deposited to secure the performance of leases entered into by the
Issuer or any of its Subsidiaries in the ordinary course of business and
consistent with past practices of the Issuer and its Subsidiaries as in effect
on the Closing Date) shall not exceed $100,000;

               (d) inchoate Liens (where there has been no execution or levy and
no pledge or delivery of collateral) arising from and out of judgments or
decrees in existence at such time not constituting an Event of Default;

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               (e) zoning restrictions, easements, licenses, reservations,
restrictions on the use of real property or minor irregularities incident
thereto (and, with respect to leasehold interests, Liens and other encumbrances
that are incurred, created, assumed or permitted to exist on or with respect to
the leased Property and arise by, through or under or are asserted by a landlord
or owner of the leased Property or by a creditor of such landlord or owner, with
or without consent of the lessee) which were not incurred in connection with the
borrowing of money and which do not in the aggregate materially impair the value
of such Property or impair the use of such Property for the purposes for which
such Property is being used by the Credit Parties;

               (f) Liens securing Senior Indebtedness;

               (g) Liens (including Liens created pursuant to Capital Leases)
existing on the Closing Date and described in Schedule 4.9A hereto;

               (h) Liens on property of the Issuer and its Subsidiaries subject
to, and securing only, Capitalized Lease Obligations to the extent such
Capitalized Lease Obligations are permitted by Section 9.1(f)(ii) or 9.1(h)
provided that such Liens only serve to secure the payment of Indebtedness
arising under such Capitalized Lease Obligation and the Lien encumbering the
asset giving rise to the Capitalized Lease Obligation does not encumber any
other asset of the Parent or any of its Subsidiaries;

               (i) setoff rights of banks and other depository institutions
arising by operation of law or otherwise in the ordinary course of business with
respect to accounts maintained at such bank or depository institution;

               (j) the extension, renewal or replacement of any Lien permitted
by subsection (g) or (h) of this Section 9.2, but only if the principal amount
of the Indebtedness secured by such Lien immediately prior to such extension,
renewal or replacement is not increased and the Lien is not extended to other
Property (other than any improvements on such Property); and

               (k) Liens arising from precautionary UCC-1 financing statement
filings regarding operating leases entered into by the Issuer or any of its
Subsidiaries in the ordinary course of business.

               Section 9.3 Limitation on Sale and Leasebacks. The Credit Parties
will not enter into any arrangement whereby any Credit Party shall sell or
transfer any Property owned by it to any Person and thereupon any Credit Party
shall lease or intend to lease, as lessee, the same Property.

               Section 9.4 Mergers, Consolidations and Sales of Assets;
Acquisitions; Subsidiaries. None of the Credit Parties will not enter into any
transaction of merger, amalgamation or consolidation, or liquidate, wind up or
dissolve itself (or suffer any liquidation or dissolution), or convey, sell,
lease, license, transfer or otherwise dispose of, in one transaction or a series
of transactions, all or any part of the business or Property (tangible or
intangible) of such Credit Party, whether now owned or hereafter acquired, or

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acquire by purchase or otherwise all or substantially all of the business or
Property of any Person or form or otherwise have any Subsidiaries (except
Subsidiaries existing on the Closing Date) or create or acquire by purchase or
otherwise any Subsidiary, except that:

         (a) the Credit Parties may in the ordinary course of its business sell
or otherwise dispose of inventory owned by it;

         (b) the Issuer and any of its Subsidiaries may sell or otherwise
dispose of assets (including the capital stock of, or other equity interests in,
any of their respective Subsidiaries or Joint Ventures) which, in the reasonable
opinion of such Person, are uneconomic or no longer useful in the conduct of
such Person's business, provided that (i) each such sale or disposition shall be
for an amount at least equal to the fair market value thereof (as determined in
good faith by senior management of the Issuer), (ii) all of the consideration
from each such sale shall be in the form of cash (for purposes of this clause
(ii) treating as cash consideration the amount of any trade payables and the
principal amount of Indebtedness for borrowed money assumed by the respective
purchaser of assets), (iii) the aggregate net sale proceeds of all assets sold
or otherwise disposed of pursuant to this clause (b) in any fiscal year of the
Parent shall not exceed $10,000,000 in the aggregate and (iv) the net sale
proceeds therefrom are applied to repay loans and/or reduce the total commitment
under the Senior Loan Agreement;

         the Credit Parties may make Permitted Acquisitions in accordance with
Section 8.12 and have Subsidiaries of the Issuer made or acquired in connection
with Permitted Acquisitions in accordance with Section 8.12;

         the Parent may contribute to the Issuer at cost that portion of the
Development Assets which, for the fiscal quarter immediately preceding such
contribution, had positive Business Center Level EBITDA, which contribution
shall be in exchange for additional shares of common equity valued at the time
of such contribution and shall otherwise be in form and substance satisfactory
to the Required Purchasers;

         (c) the Stock Purchases shall be permitted, so long as same are
consummated in accordance with the relevant requirements of Section 5.10;

         (d) the Issuer may cause any Subsidiary to be dissolved if no Permitted
Business is operated in connection with such Subsidiary and such dissolution
could not reasonably be expected to have a Material Adverse Effect;

         (e) the Credit Parties may make Investments permitted under Section
9.7(b), including transfers to Joint Ventures to the extent permitted by Section
9.7(b)(viii);

         (f) the Issuer and its Wholly-owned Subsidiaries may form new
Subsidiaries in connection with brokerage or similar operations or the opening
of new executive office suite business centers, so long as (i) such new
Subsidiaries are Wholly-owned Subsidiaries, and (ii) such new Subsidiaries
become a party to the Guarantee in accordance with Section 8.5 and otherwise
comply with the provisions thereof; and

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         (g) each of the Issuer and its Subsidiaries may lease (as lessee) real
or personal property to the extent permitted by Section 9.10 and to the extent
such lease is not a Capital Lease, the Issuer and its Subsidiaries shall enter
into such leases in the ordinary course of business.

    In the event that all of the Capital Stock of one or more Guarantors is sold
or otherwise disposed of (except to the Parent or any of its Subsidiaries) or
liquidated in compliance with the requirements of this Section 9.4 (or such sale
or other disposition or liquidation has been approved in writing by the Required
Purchasers), so long as no Default or Event of Default has occurred and is
continuing, such Guarantor shall be released from the Guarantee (it being
understood and agreed that the sale of one or more Persons that own, directly or
indirectly, all of the capital stock or partnership interests of any Guarantor
shall be deemed to be a sale of such Guarantor for the purposes of this
sentence).

         Section 9.5 Sale or Discount of Receivables. The Credit Parties will
not, directly or indirectly, sell with recourse, or discount (other than
discounts for prompt payment and in connection with collections, in each case,
in the ordinary course of business and consistent with past practice) or
otherwise sell for less than the face value thereof, any of their respective
notes or accounts receivable.

         Section 9.6 Conduct of Business. The Credit Parties will not engage in
any business other than the Permitted Business. Notwithstanding anything set
forth herein to the contrary, the Parent shall not at any time engage in any
business or activity except the ownership of the Capital Stock of the Issuer and
the Development Assets and activities related thereto, and shall not (x) own any
material assets (except the Capital Stock of the Issuer and the Development
Assets), (y) have any direct Subsidiaries (except the Issuer) or (z) have any
material liabilities (other than liabilities under this Agreement and the other
Transaction Documents to which it is a party and resulting from its ownership of
the Development Assets, provided that the Parent may engage in those activities
that are incidental to (1) the maintenance of its corporate existence in
compliance with applicable law and (2) legal, tax and accounting matters in
connection with any of the foregoing activities).

         Section 9.7 Restricted Payments and Investments.

         (a) The Credit Parties will not, directly or indirectly, make any
Restricted Payment, except:

               (i) the declaration and payment of dividends and distributions by
a Wholly-owned Subsidiary of any Credit Party on its Capital Stock to such
Credit Party (other than the Parent);

               (ii) Restricted Payments made on or about the Closing Date
pursuant to the Transaction Documents;

                                       80
<PAGE>   88

               (iii) the Issuer may distribute the Development Assets to the
Parent on the Closing Date;

               (iv) Issuer may pay cash dividends to the Parent, so long as (x)
there shall exist no Default or Event of Default (both before and immediately
after giving effect to the payment thereof), (y) the proceeds thereof are
promptly used by Parent to pay operating expenses and other similar corporate
overhead costs and expenses (but excluding in any event any costs, expenses, or
losses relating to Development Assets) and (z) the aggregate amount of dividends
paid by the Issuer in any fiscal year of Parent pursuant to this clause (iv)
does not exceed $100,000;

               (v) the Issuer may pay cash dividends to the Parent in the
amounts and at the times of any payment by the Parent in respect of taxes,
provided that (x) the amount of cash dividends paid pursuant to this clause (v)
to enable the Parent to pay federal income taxes at any time shall not exceed
the lesser of (1) the amount of such federal income taxes owing by the Parent at
such time for the respective period and (2) the amount of such federal income
taxes owing by the Issuer and its Subsidiaries on a consolidated basis for such
period if determined without regard to the Parent's ownership of the Issuer and
(y) any refunds shall promptly be returned by the Parent to the Issuer;

               (vi) the Parent may pay regularly accruing dividends with respect
to Seller Preferred Stock through the issuance of additional shares of Seller
Preferred Stock (but not in cash) in accordance with the terms of the
documentation governing the same;

               (vii) the Parent may pay regularly accruing dividends with
respect to the Series A Preferred Stock through an increase in the aggregate
liquidation preference of the outstanding Series A Preferred Stock by the amount
of the accumulated dividends thereunder (but not in cash) in accordance with the
terms of the Series A Preferred Stock Documents; and

               (viii) any Subsidiary of the Issuer that is not a Wholly-owned
Subsidiary may pay cash dividends to its shareholders or partners generally, so
long as the Issuer or its respective Subsidiary which owns the equity interest
or interests in the Subsidiary paying such dividends receives at least its
proportionate share thereof (based upon its relative holdings of equity
interests in the Subsidiary paying such dividends and taking into account the
relative preferences, if any, of the various classes of equity interests in such
Subsidiary or the terms of any agreements applicable thereto).

         (b) The Credit Parties will not make or maintain any Investments,
except that

               (i) the Credit Parties may make Permitted Investments;

               (ii) the Issuer and its Subsidiaries may acquire and hold
receivables owing to any of them, if created or acquired in the ordinary course
of business and payable or dischargeable in accordance with customary terms;

                                       81
<PAGE>   89

               (iii) the Issuer may enter into Interest Rate Protection or Other
Hedging Agreements to the extent such is entered into to satisfy the
requirements of Section 7.11 of the Senior Loan Agreement (as in effect on the
date hereof);

               (iv) the Stock Purchases shall be permitted, so long as same are
consummated in accordance with the relevant requirements of Section 5.10;

               (v) the Issuer and its Subsidiaries may endorse negotiable
instruments for collection in the ordinary course of business;

               (vi) the Issuer and its Subsidiaries may make loans and advances
in the ordinary course of business consistent with past practices to their
respective employees for moving, travel and emergency expenses and other similar
expenses, so long as the aggregate principal amount thereof at any one time
outstanding (determined without regard to any write-downs or write-offs of such
loans and advances) shall not exceed $750,000;

               (vii) the Issuer and its Subsidiaries may effect Permitted
Acquisitions (including Start-Up Costs) in accordance with the requirements of
Section 8.12;

               (viii) the Issuer and/or any of its Wholly-Owned Subsidiaries
shall be permitted to make Investments in any Joint Venture on any date, so long
as (x) the aggregate amount of such Investments does not exceed the Annual
Available JV Basket Amount in effect on such date or the Aggregate Available JV
Basket Amount in effect on such date (in each case, after giving effect to all
prior and contemporaneous adjustments thereto, except as a result of such
Investment), (y) no Default or Event of Default exists or would exist
immediately after giving effect to the respective Investment and (z) neither the
Issuer nor any of its Subsidiaries has any obligation to (A) subscribe for
additional equity interests in such Joint Venture or (B) maintain or preserve
such Joint Venture's financial condition (except for any guaranty by Parent or
any if its Subsidiaries of obligations of such Joint Venture included in clause
(iii) of the definitions of "Annual Available JV Basket Amount" and "Aggregate
Available JV Basket Amount") or cause such Joint Venture to achieve certain
levels of operating results;

               (ix) the Parent and its Subsidiaries may own the Capital Stock of
their respective Subsidiaries created or acquired in accordance with the terms
of this Agreement (so long as all amounts invested in such Subsidiaries are
independently justified under another provision of this Section 9.7(b));

               (x) the Issuer may make intercompany loans and advances to any of
its Wholly-owned Subsidiaries that is a Guarantor (collectively, "Intercompany
Loans"),

               (xi) the Parent may make cash equity contributions to the Issuer
and the Issuer may make cash equity contributions to any of its direct
Wholly-owned Subsidiaries that is a Guarantor; and

                                       82
<PAGE>   90

               (xii) the Parent may contribute the Development Assets to the
Issuer pursuant to Section 9.4(d).

         Section 9.8 Issuance of Capital Stock. The Credit Parties will not at
any time issue or have outstanding any Capital Stock or any warrants, options,
conversion rights, exchange rights or other rights to subscribe for, purchase or
acquire any Capital Stock, except (i) the Capital Stock (including the Series A
Preferred Stock), warrants, options and other rights outstanding on the Closing
Date and listed on Schedule 4.4, (ii) the Warrants, (iii) Acceptable Common
Stock (and options or warrants exercisable into Acceptable Common Stock), (iv)
upon the formation of any new Subsidiaries as permitted by Section 9.4, and (v)
the issuance of Seller Preferred Stock in accordance with the requirements of
Section 8.12 and the definition thereof and further issuances of shares of
Seller Preferred Stock in payment of regularly accruing dividends on theretofore
outstanding shares of Seller Preferred Stock issued in accordance with Section
8.12.

         Section 9.9 Transactions with Affiliates. Except for the transactions
listed on Schedule 4.14, the Credit Parties will not directly or indirectly,
enter into or permit to exist any transaction (including the purchase, sale,
lease or exchange of any Property or the rendering of any service), with any
Affiliate of such Credit Party unless such transaction is not otherwise
prohibited under this Agreement, is in the ordinary course of such Credit
Party's business and is on terms that are not less favorable, taken as a whole,
to such Credit Party than those that would be obtainable at the time in an arms'
length transaction with a Person who is not such an Affiliate and, in the event
such transaction has a value in excess of $500,000, such transaction has been
approved by a majority of the disinterested directors of the Issuer; provided
that (i) the Parent and its Subsidiaries may effect the Transactions, (ii) loans
and advances made in accordance with Section 9.7(b)(vi) shall be permitted,
(iii) the Parent and its Subsidiaries may pay customary fees to non-officer
directors of the Parent and its Subsidiaries, and (iv) the entering into, and
performing of, the Intercompany Agreement by the Issuer and any of its
Subsidiaries party thereto (including without limitation entering into any
Product Agreement as described therein) shall be permitted in accordance with
Section 6(d) of the Series A Preferred Stock Certificate of Designations. In no
event may any management or similar fees be paid or payable by the Parent or any
of its Subsidiaries to any person except as specifically provided in this
Section 9.9.

         Section 9.10 Capital Expenditures.

         (a) The Parent will not, and will not permit any of its Subsidiaries
to, make any expenditure for fixed or capital assets (including, without
limitation, expenditures for maintenance and repairs which should be capitalized
in accordance with generally accepted accounting principles and including
Capitalized Lease Obligations) or Investments in Joint Ventures (collectively,
"Capital Expenditures"), except that, subject to the provisions of Section
9.7(b)(viii) and the limitations contained in Sections 9.10(c) and (e) below,
(i) the Parent (so long as it owns Development Assets) and the Issuer and its
Subsidiaries may make Capital Expenditures as provided in Sections 9.10(b) and
(d)

                                       83
<PAGE>   91

below, (ii) during the period commencing on the Closing Date and ending on
December 31, 2000, the Parent (so long as it owns Development Assets) and the
Issuer and its Subsidiaries may make Maintenance and Up-Grade Capital
Expenditures, so long as the aggregate amount thereof during such period does
not exceed $9,000,000 and (iii) during any fiscal year of the Parent commencing
after December 31, 2000, the Parent (so long as it owns Development Assets) and
the Issuer and its Subsidiaries may make Maintenance and Up-Grade Capital
Expenditures, so long as the aggregate amount thereof during any such fiscal
year does not exceed $18,000,000 (as such amount may be increased on January 1
of each fiscal year (commencing with January 1, 2001) by three percent of the
previous fiscal year's amount as determined hereunder).

         (b) In addition to the Capital Expenditures permitted pursuant to
clauses (ii) and (iii) of Section 9.10(a) above but subject to Sections 9.10(c)
and (e) below, the Parent (so long as it owns Development Assets) and the Issuer
and its Subsidiaries may make additional Capital Expenditures (including
Permitted Acquisitions in accordance with Section 8.12 and Joint Venture
Investments made in accordance with Section 9.7(b)(viii)) (i) during the period
commencing on the Closing Date and ending on December 31, 2000, so long as the
aggregate amount thereof during such period does not exceed $18,500,000 and (ii)
during any fiscal year of the Parent commencing after December 31, 2000, so long
as the aggregate amount thereof during any such fiscal year does not exceed the
remainder of (x) the Additional Permitted CapEx Amount then in effect for such
fiscal year minus (y) the aggregate amount of Maintenance and Up-Grade Capital
Expenditures that the Parent (so long as it owns Development Assets) and the
Issuer and its Subsidiaries are permitted to make during such fiscal year
pursuant to clause (iii) of Section 9.10(a) above.

         (c) Notwithstanding anything to the contrary contained in Sections
9.10(a) or (b) above (and without prejudice to the right of the Parent and its
Subsidiaries to make additional Capital Expenditures pursuant to Section 9.10(d)
below), in no event shall the Parent, the Issuer and their Subsidiaries make
Capital Expenditures (including Maintenance and Up-Grade Capital Expenditures)
in reliance on clauses (ii) and (iii) of Section 9.10(a) and Section 9.10(b)
above in excess of $20,000,000 during any fiscal quarter of the Parent.

         (d) In addition to the Capital Expenditures permitted pursuant to
clauses (ii) and (iii) of Section 9.10(a) and Section 9.10(b) above but subject
to Section 9.10(e) below, the Parent (so long as it owns Development Assets) and
the Issuer and its Subsidiaries may make, at any time, additional Capital
Expenditures constituting Permitted Acquisitions (other than Start-Up Costs) in
an aggregate amount equal to the Retained Excess Cash Flow Amount at such time,
so long as any such Permitted Acquisition is otherwise consummated in accordance
with the requirements of Section 8.12.

         (e) Notwithstanding anything to the contrary in this Section 9.10, in
no event shall the Parent, the Issuer and their Subsidiaries make, during any
fiscal quarter of the Parent, commencing with the fiscal quarter ending March
31, 2001, Capital

                                       84
<PAGE>   92

Expenditures (including Permitted Acquisitions and Investments in Joint
Ventures) which in the aggregate exceed the Permitted Quarterly CapEx Amount for
such fiscal quarter. In addition, once the Permitted Quarterly CapEx Amount for
a fiscal quarter has been determined, commencing with the fiscal quarter ending
March 31, 2001, the Parent, the Issuer and their Subsidiaries shall not enter
into any additional binding commitments or agreements, to make Capital
Expenditures (including Permitted Acquisitions and Investments in Joint
Ventures) during such fiscal quarter, which in the aggregate, when combined with
existing binding commitments to make such Capital Expenditures in such fiscal
quarter, exceed the Permitted Quarterly CapEx Amount for such fiscal quarter.

         Section 9.11 Limitation on Dividend Restrictions Affecting
Subsidiaries.

         (a) The Credit Parties will not permit any of their Subsidiaries
directly or indirectly to create or otherwise cause or suffer to exist or become
effective any consensual encumbrance or restriction which by its terms restricts
the ability of any such Subsidiary to (i) pay dividends or make any other
distributions on such Subsidiary's Capital Stock, (ii) pay any Indebtedness owed
to any Credit Party, (iii) make any loans or advances to any Credit Party or
(iv) transfer any of its Property or assets to any Credit Party, except for such
encumbrances or restrictions existing under or by reason of (w) applicable law,
(x) this Agreement and the Senior Loan Documents, (y) customary provisions
restricting subletting or assignments of any lease governing a leasehold
interest of the Issuer or a Subsidiary of the Issuer, or (z) restrictions
applicable to any Joint Venture that is a Subsidiary existing at the time of the
acquisition thereof as a result of an Investment pursuant to Section 9.7;
provided that the restrictions applicable to the respective such Joint Venture
are not made worse, or more burdensome, from the perspective of the Issuer and
its Subsidiaries, than those as in effect immediately before giving effect to
the consummation of the respective Investment.

         The Parent will not, and will not permit any of its Subsidiaries to,
directly or indirectly, create or otherwise cause or suffer to exist or become
effective any encumbrance or restriction on the ability of any Non-Subsidiary
Joint Venture to pay dividends or make any other distributions on its Capital
Stock or any other interest or participation in its profits owned by the Parent
or any Subsidiary of the Parent, or pay any Indebtedness owed to the Parent or a
Subsidiary of the Parent, except for such encumbrances or restrictions existing
under or by reason of (i) applicable law, (ii) this Agreement and the other
Senior Loan Documents, (iii) customary provisions restricting subletting or
assignments of any lease governing a leasehold interest of a Non-Subsidiary
Joint Venture, or (iv) restrictions applicable to any Non-Subsidiary Joint
Venture existing at the time of the acquisition thereof as a result of an
Investment pursuant to Section 9.7(b)(viii); provided that the restrictions
applicable to the respective such Non-Subsidiary Joint Venture are not made
worse, or more burdensome, from the perspective of the Parent and its
Subsidiaries, than those as in effect immediately before giving effect to the
consummation of the respective Investment.

         Section 9.12 Acquisition of Margin Securities. The Credit Parties will
not own, purchase or acquire (or enter into any contract to purchase or acquire)
any

                                       85
<PAGE>   93

"margin security" as defined by any regulation of the Board of Governors of the
United States Federal Reserve System as now in effect or as the same may
hereafter be in effect if such purchase or acquisition could cause this
Agreement or the Notes to be in violation of Regulation U or any other
regulation of such Board then in effect.

         Section 9.13 Amendments of Charter, By-Laws and Certain Documents. The
Credit Parties will not:

         make (or give any notice in respect of) any voluntary or optional
payment or prepayment on or redemption (including pursuant to any change of
control provision) or acquisition for value of (including, without limitation,
by way of depositing with the trustee with respect thereto money or securities
before due for the purpose of paying when due), or exchange of, or any
involuntary prepayment or redemption as a result of any asset sale, change of
control or similar event of, or set off any amounts against, any Indebtedness
listed in Schedule 4.9A (other than (x) the Senior Indebtedness and (y) up to $1
million to prepay Capitalized Lease Obligations), any Permitted Earn-Out Debt or
any Permitted Seller Note;

         amend or modify, or permit the amendment or modification of, any
provision of any Merger Document, any FrontLine Transaction Contribution
Document or any Indebtedness listed in Schedule 4.9A (other than any Senior
Indebtedness), or of any agreement relating to any of the foregoing except for
such amendments or modifications which, in the aggregate or individually, could
not reasonably be likely to be adverse to any Purchaser in its capacity as such;

         amend or modify, or permit the amendment or modification of, any
provision of any Senior Loan Document except to the extent permitted under the
Subordination Agreement;

         amend or modify, or permit the amendment or modification of, any Equity
Document (other than a FrontLine Transaction Contribution Document) or of any
agreement related to any of the foregoing;

         amend, modify or change its certificate of incorporation (including,
without limitation, by the filing or modification of any certificate of
designation), by-laws, limited liability company agreement, partnership
agreement or any equivalent organizational document of Parent or any of its
Subsidiaries, in a manner adverse to the Purchasers;

         amend, modify or change, terminate, or enter into any new,
shareholders' agreement or any other agreement with respect to its equity
interests, except for such amendments, modifications or changes which, in the
aggregate or individually could not reasonably be likely to be adverse to any
Purchaser in its capacity as such;

         amend, modify or change, terminate, or enter into any new, tax sharing
agreement;

                                       86
<PAGE>   94

         amend, modify or change, or enter into any new management agreement,
Plan or Multiemployer Plan or employment agreement except if the aggregate cost
to the Parent and its Subsidiaries as a result of such amendments,
modifications, changes to such plans, agreements and contracts and new plans,
agreements and contracts are not reasonably likely to have a Material Adverse
Effect; or

         amend, modify, change or terminate the Intercompany Agreement, except
for such amendments, modifications or changes which, in the aggregate or
individually could not reasonably be likely to be adverse to any Purchaser in
its capacity as such.

         Section 9.14 Financial Covenants.

         (a) Fixed Charge Coverage Ratio. The Parent will not permit the Fixed
Charge Coverage Ratio for any Test Period ending on the last day of any fiscal
quarter of the Parent set forth below to be less than the ratio set forth
opposite such fiscal quarter below:

<TABLE>
<CAPTION>
           Fiscal Quarter Ended                                   Ratio
           --------------------                                   -----
<S>                                                             <C>
March 31, 2001                                                  0.80:1.00

June 30, 2001                                                   0.80:1.00

September 30, 2001                                              0.80:1.00

December 31, 2001                                               0.80:1.00

March 31, 2002                                                  0.90:1.00

June 30, 2002                                                   0.90:1.00

September 30, 2002                                              0.90:1.00

December 31, 2002                                               0.90:1.00

March 31, 2003                                                  0.90:1.00

June 30, 2003                                                   0.90:1.00

September 30, 2003                                              0.90:1.00

December 31, 2003                                               0.90:1.00

March 31, 2004                                                  0.90:1.00

June 30, 2004                                                   0.90:1.00

September 30, 2004                                              0.90:1.00
</TABLE>

                                       87
<PAGE>   95

<TABLE>
<CAPTION>
           Fiscal Quarter Ended                                   Ratio
           --------------------                                   -----
<S>                                                             <C>
December 31, 2004                                               0.90:1.00

March 31, 2005                                                  0.90:1.00

June 30, 2005                                                   0.90:1.00

September 30, 2005                                              0.90:1.00

Thereafter                                                      1.00:1.00
</TABLE>

               (b) Interest Coverage Ratio. The Parent will not permit the ratio
of its Consolidated EBITDA to its Consolidated Interest Expense for any Test
Period ending on the last day of any fiscal quarter of the Parent set forth
below to be less than the ratio set forth opposite such fiscal quarter below:

<TABLE>
<CAPTION>
           Fiscal Quarter Ended                                   Ratio
           --------------------                                   -----
<S>                                                             <C>
September 30, 2000                                              1.70:1.00

December 31, 2000                                               1.70:1.00

March 31, 2001                                                  1.91:1.00

June 30, 2001                                                   1.91:1.00

September 30, 2001                                              2.13:1.00

December 31, 2001                                               2.13:1.00

March 31, 2002                                                  2.13:1.00

June 30, 2002                                                   2.13:1.00

September 30, 2002                                              2.13:1.00

December 31, 2002                                               2.13:1.00

March 31, 2003                                                  2.13:1.00

June 30, 2003                                                   2.13:1.00

September 30, 2003                                              2.13:1.00

Thereafter                                                      2.55:1.00
</TABLE>

                                       88
<PAGE>   96

         (c) Maximum Total Leverage Ratio. The Parent will not permit the Total
Leverage Ratio at any time during a fiscal quarter set forth below to be greater
than the ratio set forth opposite such fiscal quarter below:

<TABLE>
<CAPTION>
           Fiscal Quarter Ended                                   Ratio
           --------------------                                   -----
<S>                                                             <C>
September 30, 2000                                              4.60:1.00

December 31, 2000                                               4.60:1.00

March 31, 2001                                                  4.31:1.00

June 30, 2001                                                   4.03:1.00

September 30, 2001                                              3.74:1.00

December 31, 2001                                               3.74:1.00

March 31, 2002                                                  3.74:1.00

June 30, 2002                                                   3.74:1.00

September 30, 2002                                              3.74:1.00

Thereafter                                                      3.45:1.00
</TABLE>

         Section 9.15 Board Observer Rights. The Parent and the Issuer will give
to Blackstone Partners and Chase notice of all regular meetings and all special
meetings of its Board of Directors at the time notice is given to the directors,
and will permit one employee of each of Blackstone Partners and Chase or any
Affiliate of either of them designated by the Blackstone Partners or Chase, as
the case may be, to attend such meetings as observers (but with no voting
rights), and will provide such designees with all information provided to
directors of such Credit Party at the time such information is provided to the
directors. The Parent and the Issuer will provide Ares I, Ares II and Capital
Trust with a copy of all information provided to Blackstone Partners and Chase
at the time such information is provided to Blackstone Partners and/or Chase, as
the case may be.

         Section 9.16 Business.

         (a) The Parent will not, and will not permit any of its Subsidiaries
to, engage (directly or indirectly) in any business other than a Permitted
Business.

                                       89
<PAGE>   97

         (b) The Parent will not engage in any business or activity and will not
own any significant assets or have any material liabilities other (i) its
ownership of the shares of Capital Stock of the Issuer and the Development
Assets listed on Schedule 1.1B, and (ii) liabilities under this Agreement and
the other Transaction Documents to which it is a party and resulting from its
ownership of the Development Assets; provided that the Parent may engage in
those activities that are incidental to (x) the maintenance of its corporate
existence in compliance with applicable law and (y) legal, tax and accounting
matters in connection with any of the foregoing activities.

     Section 10. Events of Default.

         Section 10.1 Events of Default; Remedies. If any of the following
events (herein called "Events of Default") shall have occurred (whatever the
reason for such Event of Default and whether it shall be voluntary or
involuntary or by operation of law or otherwise and such Event of Default shall
be deemed to be continuing until waived by the Required Purchasers (or as
otherwise required pursuant to Section 13.1) in accordance with the terms
hereof):

         (a) the Issuer shall default in the due and punctual payment or
prepayment of all or any part of the principal of, or Prepayment Premium or
Qualified Public Offering Prepayment Premium (if any) on, any Note when and as
the same shall become due and payable, whether at stated maturity, by
acceleration, by notice of prepayment or otherwise; or

         (b) the Issuer shall default in the due and punctual payment or
prepayment of any interest on any Note when and as such interest shall become
due and payable or any Credit Party shall default in the due and punctual
payment of any other Obligation when and as such Obligation shall become due and
payable, and any such default shall continue for a period of five days; or

         (c) any Credit Party shall default in the performance or observance of
any of the covenants, agreements or conditions contained in Section 8.12 or
Section 9 of this Agreement; or

         (d) any Credit Party shall default in the performance or observance of
any of the covenants, agreements or conditions contained in this Agreement
(other than those referred to in any subsection of this Section 10.1 other than
this subsection (d)), or any Credit Party shall default in the performance or
observance of any of the covenants, agreements or conditions contained in any of
the other Note Documents (other than the Warrant or the Warrant Holder
Agreement), and such default shall continue for a period of 30 days after
written notice to the Issuer from any Purchaser; or

         (e) any Credit Party shall (i) fail to pay any principal, regardless of
amount, due at final maturity in respect of any Indebtedness (other than the
Obligations), when and as the same shall become due and payable, or (ii) fail to
observe or perform any other term, covenant, condition or agreement contained in
any agreement or instrument evidencing or governing any such Indebtedness if the
effect of any failure referred to in

                                       90
<PAGE>   98

this clause (ii) is to cause such Indebtedness to become due prior to its stated
maturity; provided that it shall not constitute an Event of Default pursuant to
this paragraph (e) unless the aggregate amount of all such Indebtedness referred
to in clauses (i) and (ii) exceeds $7,500,000 at any one time; or

         (f) the Parent, the Issuer or any Material Subsidiary shall (i) apply
for or consent to the appointment of, or the taking of possession by, a
receiver, interim receiver, receiver and manager, custodian, trustee or
liquidator of itself or of all or substantially all of its Property, (ii) be
generally unable to pay its debts as such debts become due, (iii) make a general
assignment for the benefit of its creditors, (iv) commence a voluntary case
under the Bankruptcy Code, (v) file a petition seeking to take advantage of any
other law providing for the relief of debtors, (vi) fail to contest in a timely
or appropriate manner, or acquiesce in writing to, any petition filed against it
in an involuntary case under the Bankruptcy Code or any proceedings referred to
in Section 10.1(g), (vii) admit in writing its inability to pay its debts
generally as such debts become due, or (viii) take any requisite action for the
purpose of effecting any of the foregoing; or

         (g) any involuntary case or proceeding (including the filing of any
notice in respect thereof) is commenced against the Parent, the Issuer or any
Material Subsidiary under the Bankruptcy Code, any incorporation law or other
applicable law in any jurisdiction in respect of the: (i) bankruptcy,
liquidation, winding-up, dissolution or suspension of general operations, (ii)
composition, rescheduling, reorganization, arrangement or readjustment of, or
other relief from, or stay of proceedings to enforce, some or all of the debts
or obligations, (iii) appointment of a trustee, interim receiver, receiver,
receiver and manager, liquidator, administrator, custodian, sequestrator, agent
or other similar official for, or for all or substantially all of the assets, or
(iv) possession, foreclosure, seizure or retention, sale or other disposition
of, or other proceedings to enforce security over, all or substantially all of
the assets, of the Parent, the Issuer or any Material Subsidiary and such case
or proceeding shall remain undismissed or unstayed for 60 days or more or such
court shall enter a decree or order granting the relief sought in such case or
proceeding;

         (h) final judgment for the payment of money shall be rendered by a
court of competent jurisdiction against the Parent, the Issuer or any Material
Subsidiary, and such Credit Party shall not discharge the same or provide for
its discharge in accordance with its terms, or procure a stay of execution
thereof, within 30 days from the date of entry thereof and within said period of
30 days, or such longer period during which execution of such judgment shall
have been stayed, appeal therefrom and cause the execution thereof to be stayed
during such appeal, and such judgment together with all other such judgments
shall exceed in the aggregate $2,000,000 in excess of applicable insurance
coverage; or

         (i) any representation, warranty or written statement made by or on
behalf of any Credit Party or any officer of any Credit Party in this Agreement
or any other Note Document, or any certificate, notice, instrument or other
document now or hereafter delivered pursuant to or in connection with any
provision of this Agreement (including

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any Officer's Certificate or other certification delivered pursuant to Section 6
hereof) or any other Note Document, shall prove to be false, incorrect or
breached in any material respect on the date as of which made; or

         (j) any Reportable Event or a Foreign Benefit Event shall have occurred
that, in the opinion of the Required Purchasers, when taken together with all
other Reportable Events and Foreign Benefit Events, has or could reasonably be
expected to result in a Material Adverse Effect; or

         (k) any time after the execution and delivery thereof, the Guarantee or
any provisions thereof shall cease to be in full force or effect as to any
Guarantor, or any Guarantor or any Person acting by or on behalf of any
Guarantor shall deny or disafffirm such Guarantor's obligations under the
Guarantee, or any Guarantor shall default in the due performance or observance
of any term, covenant or agreement on its part to be performed or observed
pursuant to the respective Guarantee and such default shall continue beyond any
grace period specifically applicable thereto; or

         (l) any Change of Control shall occur; or

         (m) at any time prior to the date when all Existing Letter of Credit
have terminated or been incorporated as "A Letters of Credit" under the Senior
Loan Agreement either (x) the Existing L/C Back-Stop Arrangements cease to be in
effect, (y) the Existing L/C Cash Collateral Arrangements cease to be effect
(except to the extent the Existing Letters of Credit initially supported thereby
are supported by the Existing L/C Back-Stop Arrangements) or (z) the Parent or
any of its Subsidiaries becomes obligated to make any payment under any Existing
Letter of Credit that is not covered by the Existing L/C Back-Stop Arrangements
or the Existing L/C Cash Collateral Arrangements; or

         (n) On and after the execution and delivery of the FrontLine
Indemnification Contribution Agreement, (i) the FrontLine Indemnification
Contribution Agreement or any material provision thereof shall cease to be in
full force and effect except in accordance with the terms thereof, (ii)
FrontLine or any Person acting on behalf of FrontLine shall deny or disaffirm
its obligations under the FrontLine Indemnification Contribution Agreement, or
(iii) FrontLine or any Person acting on behalf of FrontLine shall default in the
due performance or observance of any material term, covenant or agreement on its
part to be performed or observed pursuant to the FrontLine Indemnification
Contribution Agreement;

then (i) upon the occurrence of any Event of Default described in subsection (f)
or (g) with respect to the Issuer, the unpaid principal amount of all Notes,
together with all interest accrued thereon and all fees, costs, expenses,
indemnities and other Obligations payable under this Agreement, the Notes or any
other Note Document, shall automatically become immediately due and payable and
all obligations of the Purchasers to purchase Notes hereunder shall terminate,
without presentment, demand, notice, declaration, protest or other requirements
of any kind, all of which are hereby expressly waived, or (ii) upon the
occurrence and during the continuance of any other Event of

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<PAGE>   100

Default, subject to Section 2.8 of the Subordination Agreement, the Required
Purchasers may, by written notice to the Issuer, declare the unpaid principal
amount of all Notes to be, and the same shall forthwith become, immediately due
and payable, together with the interest accrued thereon, and all fees, costs,
expenses, indemnities and other Obligations payable under this Agreement, the
Notes or any other Note Document and all obligations of the Purchasers to
purchase Notes hereunder shall terminate, all without presentment, demand,
notice, protest or other requirements of any kind, all of which are hereby
expressly waived.

               Section 10.2 Suits for Enforcement; Remedies. If any Event of
Default shall have occurred and be continuing, subject to Section 2.8 of the
Subordination Agreement, the Required Purchasers may proceed to protect and
enforce the rights of the Purchasers, either by suit in equity or by action at
law, or both, whether for the specific performance of any covenant or agreement
contained in this Agreement or any other Note Document or in aid of the exercise
of any power granted in this Agreement or any other Note Document, and may
proceed to enforce the payment of all sums due upon the Notes and any other
Obligations, and such further amounts as shall be sufficient to cover the costs
and expenses of collection (including counsel fees and disbursements), or to
enforce any other legal or equitable right of the Purchasers.

               Section 10.3 Remedies Cumulative. No remedy conferred herein or
in the Notes or any other Note Document upon the Purchasers is intended to be
exclusive of any other remedy and each and every such remedy shall be cumulative
and shall be in addition to every other remedy given hereunder or now or
hereafter existing at law or in equity or otherwise.

               Section 10.4 Remedies Not Waived. No course of dealing between
any Credit Party and any Purchaser, and no delay or failure in exercising any
rights hereunder or under this Agreement or any other Note Document in respect
thereof, shall operate as a waiver of any of the rights of any Purchaser.

         Section 11. Registration, Exchange, and Transfer of Notes. The Issuer
will keep at its principal executive office a register, in which, subject to
such reasonable regulations as it may prescribe, but at its expense (other than
transfer taxes, if any), the Issuer will provide for the registration and
transfer of its Notes. Whenever any Note or Notes of the Issuer shall be
surrendered by a Purchaser either at the principal executive office of the
Issuer, or at the place of payment named in the Note, for transfer or exchange,
accompanied (if so required by the Issuer) by a written instrument of transfer
in form reasonably satisfactory to the Issuer duly executed by such Purchaser or
by such Purchaser's attorney duly authorized in writing, the Issuer will execute
and deliver in exchange therefor a new Note or Notes in such denominations as
may be requested by such Purchaser, of like tenor and in the same aggregate
unpaid principal amount as the aggregate unpaid principal amount of the Note or
Notes so surrendered. Any Note issued in exchange for any other Note or upon
transfer thereof shall carry the rights to unpaid interest and interest to
accrue which were carried by the Note so exchanged or transferred, and neither
gain nor loss of interest shall result from any such transfer or

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exchange. Any transfer tax or governmental charge relating to such transaction
shall be paid by the Purchaser requesting the exchange. The Issuer and any of
its agents may treat the Person in whose name any Note is registered as the sole
and exclusive record and beneficial Purchaser and owner of such Note for the
purpose of receiving payment of the principal of, prepayment charge (if any) and
interest and other amounts on such Note and for all other purposes whatsoever,
whether or not such Note be overdue.

         Section 12. Lost, Stolen, Damaged and Destroyed Notes. At the request
of any Purchaser, the Issuer will issue and deliver at its expense, in
replacement of any Note or Notes issued by the Issuer lost, stolen, damaged or
destroyed, upon surrender thereof, if mutilated, a new Note or Notes in the same
aggregate unpaid principal amount, and otherwise of the same tenor, as the Note
or Notes so lost, stolen, damaged or destroyed, duly executed by the Issuer. The
Issuer may condition the replacement of a Note or Notes reported by the
Purchaser thereof as lost, stolen, damaged or destroyed, upon the receipt from
such Purchaser of an indemnity and/or security reasonably satisfactory to the
Issuer; provided that if such Purchaser shall be Chase, Capital Trust, Ares I,
Ares II, Blackstone Partners, or Blackstone Holdings, or a nominee thereof, such
Purchaser's unsecured agreement of indemnity shall be sufficient for purposes of
this Section.

         Section 13. Miscellaneous.

               Section 13.1 Amendment and Waiver

               (a) No amendment or waiver of any provision of this Agreement,
the Notes or any other Note Document, or any consent to any departure by the
Credit Parties therefrom, shall in any event be effective unless the same shall
be in writing and signed by the Required Purchasers, the Parent and the Issuer.
Any such waiver or consent shall be effective only in the specific instance and
for the purpose for which given. Neither any failure nor any delay on the part
of the Purchasers in exercising any right, power or privilege hereunder or under
the Notes or any of the Transaction Documents shall operate as a waiver thereof,
nor shall a single or partial exercise thereof preclude any other or further
exercise thereof or the exercise of any other right, power or privilege. Except
as otherwise provided herein or in the Notes or any Note Document, no notice to
or demand on the Credit Parties or any other Person in any case shall entitle
such Person to any other or further notice or demand in the same, similar or
other circumstances.

               (b) Notwithstanding the provisions of subsection (a) of this
Section 13.1, without the specific prior written consent of all of the
Purchasers, no amendment, waiver or consent referred to in such subsection (a)
shall (i) reduce the principal of, or the rate of interest on, or the fees
payable with respect to, any of the Notes, (ii) extend the time for payment of
all or any portion of the principal of or interest on, or fees payable with
respect to, any of the Notes, (iii) reduce the percentage of the Notes required
with respect to any such amendment or to effectuate any such waiver or consent,
or modify the definitions herein of the term "Required Purchasers", or (iv)
modify any provision of this Section 13.1.

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               Section 13.2 Expenses. The Parent and the Issuer, jointly and
severally, agree whether or not the transactions hereby contemplated shall be
consummated, to reimburse the Purchasers for all fees, costs and expenses,
including (x) the reasonable fees, costs and expenses of Paul, Hastings,
Janofsky & Walker LLP, counsel for Blackstone Partners and its affiliates, local
counsel or other advisors (including insurance, environmental and management
consultants and appraisers) and (y) the out of pocket legal, accounting, and
other fees, costs and expenses of Chase, Capital Trust, Ares I and Ares II, in
each case incurred in connection with the negotiation and preparation of the
Note Documents and for advice, assistance, or other representation in connection
with:

               (a) the forwarding to any Credit Party or any other Person on
behalf of any Credit Party by any Purchaser of the purchase price of the Notes;

               (b) any amendment, modification or waiver of, consent with
respect to, or termination of, any of the Transaction Documents or advice in
connection with the administration of the Note Documents and the transactions
contemplated thereby or its rights under the Note Documents;

               (c) any litigation, contest, dispute, suit, proceeding or action
(whether instituted by any Purchaser, any Credit Party or any other Person and
whether as a party, witness or otherwise) in any way relating to any of the
Transaction Documents or any other agreement to be executed or delivered in
connection therewith or herewith, including any litigation, contest, dispute,
suit, case, proceeding or action, and any appeal or review thereof, in
connection with a case commenced by or against any Purchaser, any Credit Party
or any other Person that may be obligated to any Purchaser by virtue of the
Transaction Documents; including any such litigation, contest, dispute, suit,
proceeding or action arising in connection with any work-out or restructuring
with respect to the Notes during the pendency of one or more Defaults or Events
of Default;

               (d) any attempt to enforce any remedies of any Purchaser against
any or all of the Credit Parties or any other Person that may be obligated to
the Purchasers by virtue of any of the Transaction Documents; including any such
attempt to enforce any such remedies in the course of any work-out or
restructuring of the Notes during the pendency of one or more Defaults or Events
of Default;

               (e) any work-out or restructuring of the Notes during the
pendency of one or more Defaults or Events of Default, including without
limitation any actions described in clause (f) below in connection with the
foregoing;

               (f) efforts to (i) monitor the Notes or any of the other
Obligations, (ii) evaluate, observe or assess any of the Credit Parties or their
respective affairs, and (iii) verify, protect, evaluate, assess, appraise,
collect, sell, liquidate or otherwise dispose of any of the assets or property
of the Credit Parties;

including, as to each of clauses (a) through (f) above, all attorneys' and other
professional and service providers' fees arising from such services, including
those in connection with any appellate proceedings; and all expenses, costs,
charges and other fees incurred by

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<PAGE>   103

such counsel and others in connection with or relating to any of the events or
actions described in this Section 13.2 shall be payable, on demand, jointly and
severally, by the Parent and the Issuer to the Purchasers; provided that with
respect to clauses (a), (b), (c) and (f) above, fees and costs of counsel shall
be limited to one special counsel and such local counsel as may be selected by
the Required Purchasers, to represent all Purchasers (and with respect to
clauses (d) and (e) above fees and costs of counsel for each Purchaser shall be
payable by the Parent and the Issuer). Without limiting the generality of the
foregoing, such expenses, costs, charges and fees may include: fees, costs and
expenses of accountants, environmental advisors, appraisers, investment bankers,
management and other consultants and paralegals; court costs and expenses;
photocopying and duplication expenses; court reporter fees, costs and expenses;
long distance telephone charges; air express charges; telegram or telecopy
charges; secretarial overtime charges; expenses for travel, lodging and food
paid or incurred in connection with the performance of such legal or other
advisory services; and expenses incurred in connection with the exercise of the
board observer rights described in Section 9.15. The obligations of the Parent
and the Issuer under this Section 13.2 shall survive the payment in full or
transfer of any Note or Warrant (including the payment or prepayment of the
Notes in full), the enforcement of any provision hereof or thereof, any such
amendments, waivers or consents, any Default or Event of Default, and any such
workout, restructuring or similar arrangement. The Purchasers shall not be
responsible for any fees or disbursements of the Accountants.

         Section 13.3 Survival of Representations and Warranties. All
representations and warranties contained herein or made in writing by or on
behalf of any party to this Agreement or otherwise in connection herewith, shall
(i) survive the execution and delivery of this Agreement and the delivery of the
Notes and Warrants to the Purchasers and shall continue in effect until all of
the Obligations have been indefeasibly paid in full and no Notes are
outstanding, and thereafter as provided in Sections 13.2 and 13.6 with respect
to the obligations imposed thereunder, and (ii) be deemed to be material and to
have been relied upon by the Purchasers, regardless of any investigation made by
the Purchasers or on their behalf.

         Section 13.4 Successors and Assigns.

         (a) This Agreement shall be binding upon and inure to the benefit of
the Parent and the Issuer and the Purchasers, and their respective successors
and assigns; provided, however, that none of the Parent or the Issuer shall have
the right to assign its rights hereunder or any interest herein or to delegate
any of its duties hereunder without the prior written consent of the Purchasers.

         (b) Subject to the provisions of Section 13.4(c), any Purchaser (the
"Assignor") may at any time at its cost and expense sell or assign to any Person
(each an "Assignee") all or any part of its interests in the Notes, this
Agreement and the other Note Documents and in the obligations of the Credit
Parties hereunder and thereunder, and each such Assignee shall assume the
obligations of the Assignor hereunder and thereunder, to the extent provided in
such assignment, and to the extent of such assumption the Assignor shall be
released from its obligations hereunder and thereunder.

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Upon execution and delivery of such an instrument, such Assignee shall be a
party to this Agreement and shall have the rights and obligations of a Purchaser
(including its rights under this Section 13.4(b)), to the extent of such
assignment, and the Assignor shall be released from its obligations hereunder to
a corresponding extent. Upon the consummation of any assignment by the Assignor
pursuant to this Section 13.4(b), the Assignor and the Issuer shall make
appropriate arrangements so that, if required, new Notes shall be issued to the
Assignor and the Assignee. The Assignor shall give the Issuer prior written
notice of the date that any such assignment shall become effective, which date
shall be no less than two Business Days after the date such notice is given.

         (c) Notwithstanding any other provision of this Agreement to the
contrary (other than Section 13.4(d)), no Purchaser shall transfer any Notes to
any Person (other than any Person who immediately prior to such transfer is (x)
an Affiliate of such Purchaser or a limited or general partner of any Purchaser
or (y) another Purchaser) unless (i) the aggregate principal amount of Notes
concurrently transferred to such Person (taken together with any concurrent
transfers of Notes by the transferor to the transferee) shall be not less than
the lesser of $5,000,000 and the entire remaining principal balance of the Notes
held by such transferor, (ii) such Person is an Eligible Transferee, (iii) such
Person is not a Company Competitor and (iv) so long as no Event of Default shall
have occurred and is continuing the prior written consent of the Issuer (which
shall not be unreasonably withheld or delayed) shall have been obtained.

         (d) Notwithstanding the foregoing Section 13.4(c), if the Notes are
publicly registered, no selling Purchaser shall be required to obtain the
consent of the Issuer and, subject to Section 13.4(b), the Notes shall be freely
transferable without restriction; provided that, without the prior written
consent of the Issuer (which shall not be unreasonably withheld or delayed), no
selling Purchaser shall transfer any Notes to a Company Competitor.

         Section 13.5 Notices. All notices hereunder shall be in writing and
shall be conclusively deemed to have been received and shall be effective (a) on
the day on which delivered if delivered personally or transmitted by telecopier,
(b) one Business Day after the date on which the same is delivered to a
nationally recognized overnight courier service, or (c) three Business Days
after being sent by registered or certified United States mail, return receipt
requested, and shall be addressed:

               (i) in the case of any Credit Party, to:

                                    HQ Global Workplaces, Inc.
                                    15950 North Dallas Parkway
                                    Tower II
                                    Suite 350
                                    Dallas, Texas  75248
                                    Attention:  Joseph Wallace
                                    Telecopy:  (972) 361-8216

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<PAGE>   105

                                    with a copy to:

                                    FrontLine Capital Group
                                    1350 Avenue of the Americas
                                    32nd Floor
                                    New York, New York  10019
                                    Attention:  Michael Maturo and Jason Barnett
                                    Telecopy:  (212) 931-8001

                                    and

                                    Brown & Wood LLP
                                    One World Trade Center
                                    New York, New York  10048
                                    Attention:  Jeff Feigelson, Esq.
                                                 J. Gerard Cummins, Esq.
                                    Telecopy:  (212) 839-5599

         (ii) in the case of Blackstone Partners or Blackstone Holdings, to:

                                    c/o Blackstone Mezzanine Partners L.P.
                                    345 Park Avenue
                                    31st Floor
                                    New York, NY  10154
                                    Attention: Salvatore Gentile, or his
                                                 authorized representative
                                    Telecopy No.: (212) 583-5482

                                    with a copy to:

                                    Mario J. Ippolito, Esq.
                                    Paul, Hastings, Janofsky & Walker LLP
                                    1055 Washington Boulevard
                                    Stamford, CT  06901
                                    Telecopy No.:  (203) 359-3031

         (iii) in the case of Chase, to:

                                    Chase Equity Associates, L.P.
                                    c/o Chase Capital Partners
                                    1221 Avenue of the Americas
                                    New York, NY  10020-1080
                                    Attention: Eric Green
                                    Telecopy No.: (212) 899-3401

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<PAGE>   106

                                    with a copy to:

                                    Stewart A. Kagan, Esq.
                                    O'Sullivan Graev & Karabell, LLP
                                    30 Rockefeller Plaza
                                    New York, NY  10112
                                    Telecopy No.:  (212) 728-5950

         (iv) in the case of Capital Trust, to:

                                    CT Mezzanine Partners I LLC
                                    c/o Capital Trust, Inc.
                                    605 Third Avenue
                                    26th Floor
                                    New York, NY 10016
                                    Attention:  Stephen Plavin
                                    Telecopy No.:  (212) 655-0044

                                    with a copy to:

                                    Dean A. Stiffle, Esq.
                                    Paul, Hastings, Janofsky & Walker LLP
                                    399 Park Avenue
                                    New York NY  10022-4697
                                    Telecopy No.:  (212) 319-4090

         (v) in the case of Ares I or Ares II, to:

                                    Ares Leveraged Investment Fund, L.P.
                                    c/o Ares Management
                                    1999 Avenue of the Stars
                                    Suite 1900
                                    Los Angeles, CA  90067
                                    Attention: Eric Beckman
                                    Telecopy No.: (310) 201-4170

         (vi) in the case of Highbridge, to:

                                    c/o Golden Tree Asset Management, L.P.
                                    1290 Avenue of the Americas
                                    6th Floor
                                    New York, NY  10019
                                    Attention:  Laurie Lapine
                                    Telecopy No.:  (212) 469-2490

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<PAGE>   107

                                    with a copy to:

                                    Highbridge Capital Management, LLC
                                    767 Fifth Avenue
                                    5th Floor
                                    New York, NY  10153
                                    Attention: Ronald Resnick
                                    Telecopy No.: (212) 759-6010

or at such other address and/or telecopy number and/or to the attention of such
other Person as any of such Persons shall have advised the others by notice in
the manner herein specified.

         Section 13.6 Indemnification. The Parent and the Issuer jointly and
severally, each hereby agrees to defend, indemnify, exonerate and hold harmless
each Purchaser and its affiliates and each of their respective officers,
partners, members, directors, stockholders, trustees, employees and agents
(herein collectively called the "Indemnitees") from and against any and all
liabilities, obligations, losses (excluding any loss in the value of the
Warrants or Warrant Stock), damages, claims, actions, suits, proceedings,
judgments, costs and expenses, including legal fees and other expenses incurred
in the investigation, defense, appeal and settlement of claims, actions, suits
and proceedings (herein collectively called the "Indemnified Liabilities"),
incurred by the Indemnitees or any of them as a result of, or arising out of or
relating to:

               (i) any action or failure to act by any Credit Party;

               (ii) any statements or omissions made in any disclosure or other
information or materials used in connection with the Transactions, including any
sale, syndication or other transfer of securities of any Credit Party;

               (iii) the action or failure to act by an Indemnitee with the
consent or in reliance on any action or failure to act of any Credit Party;

               (iv) the execution, delivery, performance or enforcement of this
Agreement, the other Transaction Documents or any other instrument or document
contemplated hereby or thereby by any of the Indemnitees, or the Transactions or
any act, event or transaction related or attendant thereto or contemplated
hereby or thereby, or any action or inaction by any Indemnitee under or in
connection therewith; or

               (v) any Environmental Matter, any Environmental Law or the actual
or alleged existence or release of any Hazardous Material

except with respect to any Indemnitee for any such Indemnified Liabilities that
are finally judicially determined to have resulted from such Indemnitee's gross
negligence or willful misconduct, and if and to the extent that the foregoing
undertaking may be unenforceable for any reason, the Parent and the Issuer
jointly and severally each hereby agrees to make

                                      100
<PAGE>   108

the maximum contribution to the payment and satisfaction of each of the
Indemnified Liabilities which is permissible under applicable law. The
obligations of the Parent and the Issuer under this Section 13.6 shall be in
addition to any liability that they may otherwise have and shall survive the
payment or prepayment in full or transfer of any Note or Warrant and the
enforcement of any provision hereof or thereof.

               Section 13.7 Public Announcements. The Parent and the Issuer
agree that they will not issue any press release or make any other public
announcement, statement or filing with regard to this Agreement, the Notes, the
Warrants or the other Transaction Documents or the Transactions without the
prior approval of the Required Purchasers, which approval shall not be
unreasonably withheld and shall in no event be withheld in any case where such
press release, public announcement, statement or filing is required by
applicable law (including applicable rules and regulations of the SEC).

               Section 13.8 No Fiduciary Relationship. The Purchasers shall not,
by reason of their purchase or holding of Notes or Warrants pursuant to this
Agreement, be deemed to have any fiduciary or other special relationship with
the Credit Parties. No provision of this Agreement, the Notes, the Warrants, the
other Note Documents or any of the other documents executed and delivered in
connection herewith shall be construed to create a fiduciary duty on the part of
the Purchasers or any trustee or agent therefor in favor of the Credit Parties,
any of their Subsidiaries or Affiliates, or their respective directors,
officers, employees, agents, Stockholders or creditors.

               Section 13.9 Integration and Severability. This Agreement
(including the schedules and exhibits thereto), the Notes, the Warrants, the
other Note Documents and the other documents executed pursuant to this Agreement
embody the entire agreement and understanding between the Purchasers and the
Credit Parties, and supersede all prior agreements and understandings relating
to the subject matter hereof. In case any one or more of the provisions
contained in this Agreement, the Notes, the Warrants, the other Note Documents
or any other agreement, instrument or document executed in connection therewith,
or any application thereof, shall be invalid, illegal or unenforceable in any
respect, the validity, legality and enforceability of the remaining provisions
contained herein and therein, and any other application thereof, shall not in
any way be affected or impaired thereby.

               Section 13.10 Counterparts. This Agreement may be executed in two
or more counterparts, each of which shall be deemed an original but all of which
shall together constitute one and the same instrument.

               Section 13.11 GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY
AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK.

               Section 13.12 SUBMISSION TO JURISDICTION; WAIVER OF SERVICE AND
VENUE.

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         (a) EACH OF PARENT AND THE ISSUER CONSENTS AND AGREES TO THE
NON-EXCLUSIVE JURISDICTION OF ANY STATE OR FEDERAL COURT SITTING IN THE COUNTY
OF NEW YORK, STATE OF NEW YORK, WAIVES ANY OBJECTION BASED ON VENUE OR FORUM NON
CONVENIENS WITH RESPECT TO ANY ACTION INSTITUTED THEREIN, AND AGREES THAT ANY
DISPUTE CONCERNING THE RELATIONSHIP BETWEEN PURCHASERS, ON THE ONE HAND, AND ANY
CREDIT PARTY, ON THE OTHER HAND, OR THE CONDUCT OF ANY PARTY IN CONNECTION WITH
THIS AGREEMENT OR OTHERWISE, MAY BE HEARD IN THE COURTS DESCRIBED ABOVE.

         (b) EACH OF THE PARENT AND THE ISSUER HEREBY IRREVOCABLY DESIGNATES,
APPOINTS AND EMPOWERS CORPORATION SERVICE COMPANY WITH OFFICES ON THE DATE
HEREOF AT 500 CENTRAL AVENUE, ALBANY, NEW YORK 12206-2290 AS ITS DESIGNEE,
APPOINTEE AND AGENT TO RECEIVE, ACCEPT AND ACKNOWLEDGE FOR AND ON ITS BEHALF,
AND IN RESPECT OF ITS PROPERTY, SERVICE OF ANY AND ALL LEGAL PROCESS, SUMMONS,
NOTICES AND DOCUMENTS WHICH MAY BE SERVED IN ANY SUCH ACTION OR PROCEEDING. IF
FOR ANY REASON SUCH DESIGNEE, APPOINTEE AND AGENT SHALL CEASE TO BE AVAILABLE TO
ACT AS SUCH, EACH OF THE PARENT AND THE ISSUER AGREES TO DESIGNATE A NEW
DESIGNEE, APPOINTEE AND AGENT ON THE TERMS AND FOR THE PURPOSES OF THIS
PROVISION SATISFACTORY TO THE REQUIRED PURCHASERS UNDER THIS AGREEMENT. EACH OF
PARENT AND THE ISSUER HEREBY WAIVES PERSONAL SERVICE OF ANY AND ALL PROCESS UPON
IT AND CONSENTS THAT ALL SUCH SERVICE OF PROCESS MAY BE MADE BY HAND DELIVERY TO
SUCH CREDIT PARTY AT ITS ADDRESS SET FORTH ABOVE IN SECTION 13.5. EACH OF THE
PARENT AND THE ISSUER HEREBY CONSENTS TO SERVICE OF PROCESS AS AFORESAID.

         (c) NOTHING IN THIS SECTION 13.12 SHALL AFFECT THE RIGHT OF THE
PURCHASERS TO SERVE LEGAL PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR AFFECT
THE RIGHT OF THE PURCHASERS (UPON THE CONSENT OF THE REQUIRED PURCHASERS AS
PROVIDED IN SECTION 13.12(a)) TO BRING ANY ACTION OR PROCEEDING AGAINST ANY
CREDIT PARTY OR ITS PROPERTY IN THE COURTS OF ANY OTHER JURISDICTION.

         Section 13.13 WAIVER OF RIGHT TO TRIAL BY JURY. EACH PARTY HERETO
HEREBY WAIVES ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, DEMAND, ACTION OR CAUSE
OF ACTION (I) ARISING UNDER THIS AGREEMENT, ANY NOTE, ANY OTHER NOTE DOCUMENT OR
ANY OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION
HEREWITH OR (II) IN ANY WAY

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<PAGE>   110

CONNECTED WITH OR RELATED OR INCIDENTAL TO THE DEALINGS OF THE PARTIES HERETO OR
ANY OF THEM IN RESPECT TO THIS AGREEMENT, ANY OTHER NOTE DOCUMENT OR ANY OTHER
INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH
OR THE TRANSACTIONS, IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER ARISING, AND
WHETHER SOUNDING IN CONTRACT OR TORT OR OTHERWISE. EACH PARTY HERETO HEREBY
AGREES AND CONSENTS THAT ANY SUCH CLAIM, DEMAND, ACTION OR CAUSE OF ACTION SHALL
BE DECIDED BY COURT TRIAL WITHOUT A JURY AND THAT ANY PARTY MAY FILE AN ORIGINAL
COUNTERPART OR A COPY OF THIS AGREEMENT WITH ANY COURT AS WRITTEN EVIDENCE OF
THE CONSENT OF THE PARTIES HERETO TO THE WAIVER OF THEIR RIGHTS TO TRIAL BY
JURY.

                                      103
<PAGE>   111

         IN WITNESS WHEREOF, each of the Parent, the Issuer and the Purchasers
have executed this Agreement by their duly authorized officers as of the date
first written above.

                                   HQ GLOBAL WORKPLACES, INC.

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

                                   HQ GLOBAL HOLDINGS, INC.

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

                                   BLACKSTONE MEZZANINE PARTNERS L.P.

                                   By:  Blackstone Mezzanine Associates L.P.,
                                        its General Partner

                                   By:  Blackstone Mezzanine Management
                                        Associates L.L.C., its General Partner

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

                                   BLACKSTONE MEZZANINE HOLDINGS L.P.

                                   By:  Blackstone Mezzanine Associates L.P.,
                                        its General Partner

                                   By:  Blackstone Mezzanine Management
                                        Associates L.L.C., its General Partner

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

<PAGE>   112

                                     CHASE EQUITY ASSOCIATES, L.P.

                                     By:  Chase Capital Partners, its
                                          Investment Manager

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

                                     CT MEZZANINE PARTNERS I LLC

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

                                     ARES LEVERAGED INVESTMENT FUND, L.P.

                                     By:  ARES Management, L.P.
                                     Its: General Partner

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

                                     ARES LEVERAGED INVESTMENT FUND II, L.P.

                                     By:  ARES Management II, L.P.
                                     Its: General Partner

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

                                     HIGHBRIDGE INTERNATIONAL LLC

                                     By:  Golden Tree Asset Management, as Agent

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

<PAGE>   113

                                                                         Annex 1

<TABLE>
<CAPTION>
                                                       Initial Warrant       Additional Warrant
          Purchasers                  Notes                Shares               Stock Number        Total Warrant Shares
          ----------                  -----            ---------------       ------------------     --------------------
<S>                              <C>                   <C>               <C>                      <C>
Blackstone Mezzanine Partners    $   37,800,000           152,271.89              68,694.08             220,965.97
L.P.

Blackstone Mezzanine Holdings    $    4,200,000            16,919.10               7,632.68              24,551.78
L.P.

Chase Equity Associates, L.P.    $   42,000,000           169,190.99              76,326.76             245,517.75

CT Mezzanine Partners I LLC      $   26,000,000           104,737.28              47,249.90             151,987.18

Ares Leveraged Investment        $    7,000,000            28,198.49              12,721.13              40,919.62
Fund, L.P.

Ares Leveraged Investment Fund   $    7,000,000            28,198.49              12,721.13              40,919.62
II, L.P.

Highbridge International LLC     $    1,000,000             4,028.36               1,817.30               5,845.66

TOTAL                            $  125,000,000           503,544.60             227,162.98             730,707.58
</TABLE>

<PAGE>   114

                   SCHEDULES

<TABLE>
<S>                      <C>       <C>
Schedule 1.1B              -       Development Assets

Schedule 4.4               -       Capital Stock

Schedule 4.5C              -       Projections

Schedule 4.5D              -       Pro Forma Adjustments Letter

Schedule 4.5E              -       Sources and Uses

Schedule 4.5F              -       Trade Payables

Schedule 4.6               -       Litigation

Schedule 4.7               -       No Conflicts

Schedule 4.8               -       Consents

Schedule 4.9A              -       Existing Indebtedness

Schedule 4.9B              -       Existing Investments

Schedule 4.9C              -       Existing Letters of Credit

Schedule 4.10              -       Real Property

Schedule 4.14              -       Certain Fees

Schedule 4.15              -       Labor Matters

Schedule 4.16              -       Environmental Matters

Schedule 4.18              -       Pension and Benefit Plans

Schedule 4.19              -       Material Contracts

Schedule 4.20              -       Insurance

Schedule 4.22              -       Intellectual Property

Schedule 4.27              -       Customers

Schedule 4.29              -       Certain Payments
</TABLE>

<PAGE>   115

<TABLE>
<S>                        <C>     <C>
Schedule 4.31              -       Business Suite Centers

Schedule 5.6               -       Litigation

Schedule 8.12              -       Financial Due Diligence
</TABLE>

<PAGE>   116

                EXHIBITS

<TABLE>
<S>                <C>      <C>
Exhibit A           -       Form of Note

Exhibit B           -       Form of Guarantee

Exhibit C           -       Form of Warrant

Exhibit D           -       Form of Subordination Agreement
</TABLE><PAGE>   1
                                                                    EXHIBIT 10.2

                               PURCHASE AGREEMENT

         PURCHASE AGREEMENT, dated as of August 11, 2000, by and among HQ Global
Holdings, Inc., a Delaware corporation ("Holdco"), FrontLine Capital Group, a
Delaware corporation ("FCG"), and ____________, a Delaware limited liability
company (the "Investor").

         WHEREAS, Holdco desires to sell to the Investor, and the Investor
desires to purchase from Holdco, certain securities on the terms and conditions
specified in this Agreement.

         WHEREAS, capitalized words and phrases used but not otherwise defined
herein shall have the meanings ascribed to them under that certain Agreement and
Plan of Merger, dated as of January 20, 2000, as amended as of April 29, 2000
and as of May 30, 2000 (as amended, the "Merger Agreement"), by and among HQ
Global Workplaces, Inc. ("Old HQ"), CarrAmerica Realty Corporation
("CarrAmerica"), VANTAS Incorporated ("VANTAS") and Reckson Service Industries
Inc.

         Accordingly, Holdco, FCG and the Investor hereby agree as follows:

         1. Purchase and Sale of Securities. (a) On the terms and subject to the
conditions of this Agreement, (i) Holdco agrees to sell to the Investor, and the
Investor agrees to purchase from Holdco, for $________ (the "Purchase Price")
(A) ___________ newly issued shares of Series A Convertible Cumulative Preferred
Stock (the "Preferred Shares"), the terms of which are contained in the amended
and restated certificate of designations to Holdco's certificate of
incorporation (the "Amended and Restated Certificate of Designations") in the
form attached as Exhibit A hereto, having an initial liquidation preference
equal to $ ________ and (B) warrants (the "Warrants") to purchase up to
_________ shares of voting common stock, par value $.01 per share (the "Voting
Common Stock"), the terms of which are in the form attached as Exhibit B hereto
in respect of Warrants to purchase __________ shares of Voting Common Stock (the
"Initial Warrants") and in Exhibit C hereto in respect of Warrants to purchase
___________ shares of Voting Common Stock (the "Subsequent Warrants").

                  (b) The closing of the purchase and sale of the securities
referred to in clause (a) above shall be held at the offices of Brown & Wood
LLP, One World Trade Center, New York, New York 10048, on August 11, 2000 (the
"Closing Date"), subject to the satisfaction or waiver of the conditions set
forth in Section 5 hereof. On the Closing Date, (i) Holdco shall deliver
certificates issued in the Investor's name representing the Preferred Shares and
the Warrants, and (ii) the Investor shall deposit the Purchase Price in
immediately available funds with Citibank, N.A., as escrow agent (the "Escrow
Agent") under the Escrow Agreement, dated as of August 11, 2000 (the "Escrow
Agreement"), for payment to Holdco; it being understood that the closing shall
occur, and the Preferred Shares, Warrants and Purchase Price only released from
escrow, in accordance with the terms and conditions set forth in the Escrow
Agreement.

         2. Representations and Warranties of Holdco. Holdco hereby represents
and warrants to the Investor as of the date hereof and as of the Closing Date
that the representations and warranties applicable to Old HQ and VANTAS
contained in Sections 4(A) and 5(A),

<PAGE>   2

respectively, of the Merger Agreement (it being understood that references to
Old HQ and VANTAS in such sections shall be, in the aggregate, to Holdco and its
subsidiaries where the context so requires) are true and correct with the same
force and effect as though made at and as of the date hereof except with respect
to those representations and warranties that can not be reaffirmed as of the
date hereof due solely to the consummation of the Merger (as such term is
defined in the Merger Agreement), which such representations are reaffirmed as
of the date hereof as having been true and correct as of June 1, 2000. In
addition, Holdco represents and warrants to the Investor as of the date hereof
and as of the Closing Date as to the following matters:

                  (a) Organization and Standing. Holdco is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Delaware. Holdco and its subsidiaries have all requisite corporate power and
authority necessary to carry on their respective businesses as presently
conducted and to enable them to own, lease or otherwise hold their respective
properties and assets. Holdco and its subsidiaries are duly qualified to do
business and in good standing in each jurisdiction in which the conduct or
nature of their respective businesses or the ownership, leasing or holding of
their respective properties or assets makes such qualification necessary, except
any such jurisdiction where the failure to be so qualified or in good standing,
individually or in the aggregate, would not have a material adverse effect on
the business, financial condition or results of operations of Holdco and its
subsidiaries taken as a whole (a "Holdco Material Adverse Effect").

                  (b) Authority. Holdco has all requisite corporate power and
authority to enter into this Agreement, that certain Amended and Restated
Registration Rights Agreement, in the form attached as Exhibit D hereto (the
"Registration Rights Agreement"), and the Amended and Restated Stockholders
Agreement, in the form attached as Exhibit E hereto (the "Stockholders
Agreement"), to perform its obligations hereunder and thereunder and to
consummate the transactions contemplated hereby and thereby. All corporate acts
and other proceedings required to be taken by Holdco to authorize the execution,
delivery and performance of this Agreement, the Registration Rights Agreement
and the Stockholders Agreement and the consummation of the transactions
contemplated hereby and thereby have been duly and properly taken. This
Agreement and the Stockholders Agreement have each been, and, on the Closing
Date, the Registration Rights Agreement will have been, duly executed and
delivered by Holdco and each constitutes or will constitute, as applicable, a
legal, valid and binding agreement of Holdco, enforceable against Holdco in
accordance with its terms, except insofar as enforcement thereof may be limited
by bankruptcy, insolvency, or other laws relating to or affecting enforcement of
creditors' rights generally or by general equitable principles.

                  (c) No Conflicts; Consents. The execution and delivery of this
Agreement, the Registration Rights Agreement and the Stockholders Agreement by
Holdco does not, and the consummation of the transactions contemplated hereby
and thereby and compliance with the terms hereof and thereof will not conflict
with, or result in any violation of, or default (with or without notice or lapse
of time, or both) under, or give rise to a right of termination, cancellation or
acceleration of any obligation or to a material loss of a benefit under, or
result in the creation

                                       2

<PAGE>   3

of any lien, charge or encumbrance of any kind upon any of the properties or
assets of Holdco or its subsidiaries under, any provision of (i) the certificate
of incorporation or by-laws of Holdco and its subsidiaries, (ii) any note, bond,
mortgage, indenture, deed of trust, license, lease, contract, commitment,
agreement or arrangement to which Holdco or any of its subsidiaries is a party
or by which any of them or any of their respective properties or assets is bound
or (iii) subject to the governmental filings and other matters referred to in
the succeeding sentence, any judgment, order or decree, or statute, law,
ordinance, rule or regulation, applicable to Holdco or any of its subsidiaries
or any of their respective properties or assets. Except as set forth on Schedule
2(c), no consent, approval, license, permit, order or authorization of, or
registration, declaration or filing with, any Federal, state, local or foreign
government or any court of competent jurisdiction, administrative agency or
commission or other governmental authority or instrumentality, domestic or
foreign, or any national securities or commodities exchange or other regulatory
or self-regulatory body or association (a "Governmental Entity") is required to
be obtained or made by or with respect to Holdco or any of its subsidiaries in
connection with the execution, delivery and performance by Holdco of this
Agreement, the Registration Rights Agreement and the Stockholders Agreement or
the consummation of the transactions contemplated hereby and thereby, other than
such other consents, approvals, orders, authorizations, registrations,
declarations and filings (i) as are set forth on Schedule 2(c), (ii) as may be
required under the "blue sky" laws of various states and (iii) as otherwise
contemplated in the Registration Rights Agreement.

                  (d) Capital Stock. The authorized capital stock of Holdco
consists of 75,000,000 shares of Voting Common Stock, 25,000,000 shares of
non-voting common stock, par value $.01 per share (the "Nonvoting Common Stock,"
and together with the Voting Common Stock, the "Common Stock"), and 7,800,000
shares of preferred stock. On the Closing Date, there shall only be 9,972,827
shares of Voting Common Stock, 2,152,988 shares of Nonvoting Common Stock and
5,395,858 Preferred Shares issued and outstanding. All of the outstanding shares
of Common Stock have been validly issued and outstanding, fully paid and
nonassessable. On the Closing Date, (i) the Total Initial Warrants (as such term
is defined in the Written Consent and Waiver by the Holders of Series A
Convertible Cumulative Preferred Stock of HQ Global Holdings, Inc., dated as of
the date hereof (the "Written Consent")) entitle the holders thereof to purchase
1,757,630 shares of the Common Stock of Holdco, representing 8.8846% of the
shares of Common Stock of Holdco on a fully diluted basis after taking into
account the number of shares of Common Stock issuable upon conversion of the
5,395,858 Preferred Shares at a conversion price of $40.772017 per share and the
number of shares of Common Stock issuable upon the exercise of the Total Initial
Warrants and the Mezzanine Warrants (as such term is defined in the Written
Consent) for the purchase of 503,545 shares of Common Stock initially
exercisable on the date hereof (the "Initial Mezzanine Warrants"), and (ii) the
Total Subsequent Warrants (as such term is defined in the Written Consent) will
entitle the holders thereof to purchase 862,776 shares of the Common Stock of
Holdco, representing, together with the Total Initial Warrants, 12.6923% of the
shares of Common Stock of Holdco on a fully-diluted basis after taking into
account the number of shares of Common Stock issuable upon conversion of the
5,395,858 Preferred Shares at a conversion price of $40.772017 per share and the
number of shares of Common Stock issuable upon the exercise of the Total Initial
Warrants, the Total

                                       3

<PAGE>   4

Subsequent Warrants and the Initial Mezzanine Warrants. Except as set forth in
Schedule 2(d), none of the outstanding shares of Common Stock have been issued
in violation of, or are subject to, any preemptive or similar rights under any
provision of applicable law, the certificate of incorporation or by-laws of
Holdco or any agreement, contract or instrument to which Holdco is a party or by
which it or any of its properties or assets is bound. Except as set forth on
Schedule 2(d), there are no outstanding warrants, options, rights, convertible
or exchangeable securities or other commitments (other than those contemplated
by this Agreement) (i) pursuant to which Holdco is or may become obligated to
issue, sell, purchase, return or redeem any shares of Common Stock or its
preferred stock or (ii) that give any person the right to receive any benefits
or rights similar to any rights enjoyed by or accruing to the holders of shares
of Common Stock or its preferred stock of Holdco. There are no shares of Common
Stock or preferred stock reserved for issuance by Holdco for any purpose except
for securities reserved for issuance for the purposes set forth on Schedule
2(d). Except as set forth in Schedule 2(d), there are no outstanding bonds,
debentures, notes or other indebtedness having the right to vote on any matters
on which stockholders of Holdco may vote.

                  (e) Preferred Shares. The Preferred Shares have been duly
authorized for issuance by Holdco pursuant to the terms of this Agreement and,
on the Closing Date, (i) will be validly issued, fully paid and nonassessable,
(ii) will be free and clear of all liens, other than transfer restrictions
relating to the federal securities laws, (iii) will not be issued in violation
of any preemptive or similar rights under any provisions of applicable law, the
certificate of incorporation or by-laws of Holdco or any agreement, contract or
instrument to which Holdco is a party or by which it or any of its properties or
assets is bound and (iv) assuming the accuracy of the representations and
warranties set forth in Section 3 will be issued in compliance with the
registration and qualification requirements of all applicable federal securities
laws as presently in effect.

                  (f) Warrants. The Warrants have been duly authorized for
issuance by Holdco pursuant to the terms of this Agreement and, on the Closing
Date, will be legal, valid and binding obligations of Holdco, enforceable
against Holdco in accordance with their terms, except insofar as enforcement
thereof may be limited by bankruptcy, insolvency or other laws relating to or
affecting enforcement of creditors' rights generally or by general equity
principles.

                  (g) Common Stock. The shares of Common Stock issuable upon
conversion of the Preferred Shares or upon exercise of the Warrants have been
duly authorized by Holdco and, when issued and delivered in accordance with the
terms of the Preferred Shares or Warrants, as the case may be, will be validly
issued, fully paid and nonassessable and will not be subject to any preemptive
or similar rights under any provision of applicable law, the certificate of
incorporation or by-laws of Holdco or any agreement, contract or instrument to
which Holdco is a party or by which it or any of its properties or assets is
bound.

                  (h) Financial Statements. (i) The audited consolidated balance
sheets of VANTAS, as of June 30, 1997, June 30, 1998, December 31, 1998 and
December 31, 1999 and the related consolidated statements of income,
stockholder's equity and cash flows of

                                       4
<PAGE>   5

VANTAS for the fiscal years ended as of such dates, which financial statements
have been examined by PricewaterhouseCoopers LLP, independent certified public
accountants, (ii) the unaudited consolidated balance sheet of VANTAS as of March
31, 2000 and related consolidated statements of income, stockholder's equity and
cash flows of VANTAS for the fiscal quarter ended as of such date, (iii) the
audited consolidated balance sheets of Old HQ as of December 31, 1997, December
31, 1998 and December 31, 1999 and the related statements of earnings and cash
flows of Old HQ and its subsidiaries for the fiscal years ended as of such
dates, which financial statements have been examined by KPMG LLP, independent
certified public accountants, (iv) the unaudited consolidated balance sheet of
Old HQ as of March 31, 2000 and the related statements of earnings and cash
flows of Old HQ and its subsidiaries for the fiscal quarter ended as of such
date, and (v) the pro forma consolidated balance sheets and statements of income
and cash flows of Holdco and its subsidiaries as of December 31, 1999, copies of
all of which financial statements referred to in the preceding clauses (i),
(ii), (iii), (iv) and (v) have heretofore been made available to the Investor,
present fairly the financial position of the respective entities at the dates of
said statements and the results of operations for the period covered thereby
(or, in the case of the pro forma financial statements, present a good faith
estimate of the pro forma financial condition of Holdco and its subsidiaries on
a consolidated basis at the date thereof). All such financial statements have
been prepared in accordance with generally accepted accounting principles
consistently applied except to the extent provided in the notes to said
financial statements and with respect to interim financial statements, subject
to normal year end adjustments.

         3. Representations and Warranties of the Investor. The Investor hereby
represents and warrants to Holdco as follows:

                  (a) Organization and Standing. The Investor is a limited
liability company duly organized, validly existing and in good standing under
the laws of the State of Delaware. The Investor and its subsidiaries have all
requisite limited liability company or other power and authority necessary to
carry on their respective businesses as presently conducted and to enable them
to own, lease or otherwise hold their respective properties and assets. The
Investor and its subsidiaries are duly qualified to do business and are in good
standing in each jurisdiction in which the conduct or nature of their respective
businesses or the ownership, leasing or holding of their respective properties
or assets makes such qualification necessary, except any such jurisdiction where
the failure to be so qualified or in good standing, individually or in the
aggregate, would not have a material adverse effect on the business, financial
condition or results of operations of the Investor and its subsidiaries taken as
a whole (an "Investor Material Adverse Effect").

                  (b) Authority. The Investor has all requisite limited
liability company power and authority to enter into this Agreement, the
Registration Rights Agreement and the Stockholders Agreement, to perform its
obligations hereunder and thereunder and to consummate the transactions
contemplated hereby and thereby. All limited liability company and other acts
and other proceedings required to be taken by the Investor to authorize the
execution, delivery and performance of this Agreement, the Registration Rights
Agreement and the Stockholders

                                       5
<PAGE>   6

Agreement and the consummation of the transactions contemplated hereby and
thereby have been duly and properly taken. This Agreement and the Stockholders
Agreement have each been, and, on the Closing Date, the Registration Rights
Agreement will have been, duly executed and delivered by the Investor and each
constitutes or will constitute, as applicable, a legal, valid and binding
obligation of the Investor, enforceable against the Investor in accordance with
its terms, except insofar as enforcement thereof may be limited by bankruptcy,
insolvency or other laws relating to or affecting enforcement of creditors'
rights generally or by general equity principles.

                  (c) No Conflicts; Consents. The execution and delivery of this
Agreement, the Registration Rights Agreement and the Stockholders Agreement by
the Investor does not, and the consummation of the transactions contemplated
hereby and thereby and compliance by the Investor with the terms hereof and
thereof will not, conflict with, or result in any violation of or default (with
or without notice or lapse of time, or both) under, or give rise to a right of
termination, cancellation or acceleration of any obligation or to loss of a
material benefit under, or result in the creation of any lien, charge or
encumbrance of any kind upon any of the properties or assets of the Investor or
its subsidiaries under, any provision of (i) the charter or by-laws of the
Investor and its subsidiaries, (ii) any note, bond, mortgage, indenture, deed of
trust, loan document, license, lease, contract, commitment, agreement or
arrangement to which the Investor or any of its subsidiaries is a party or by
which any of them or any of their respective properties or assets is bound or
(iii) any judgment, order or decree, or statute, law, ordinance, rule or
regulation, applicable to the Investor or any of its subsidiaries or any of
their respective properties or assets. Except for disclosure in any reports
required pursuant to the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), no consent, approval, license, permit, order or authorization
of, or registration, declaration or filing with, any Governmental Entity is
required to be obtained or made by or with respect to the Investor in connection
with the execution, delivery and performance of this Agreement, the Registration
Rights Agreement and the Stockholders Agreement by the Investor or the
consummation of the transactions contemplated hereby and thereby.

                  (d) Investment Representation. The Investor is purchasing
Preferred Shares and Warrants pursuant to this Agreement for its own account for
investment only and not with a view towards their distribution or resale. The
Investor represents that it is an "accredited" investor within the meaning of
Rule 501 promulgated under the Securities Act of 1933, as amended (the
"Securities Act"), has such knowledge and experience in financial and business
matters that enable it to evaluate the merits and risks of investment in the
Preferred Shares, and Warrants, is able to bear the economic risk of a loss of
its entire investment therein and is prepared to hold the same for an indefinite
period of time. The Investor has received the opportunity to ask questions, and
has obtained the related answers, regarding the business, financial condition
and results of operations of Holdco, VANTAS and Old HQ and the terms and
conditions of the Preferred Shares and the Warrants. The Investor has received
all of the information regarding Holdco, VANTAS and Old HQ that it has
requested. Holdco has informed the Investor that the Preferred Shares and
Warrants have not been registered under the Securities Act and may not be sold,
transferred or otherwise assigned absent such registration or an exemption
therefrom. Holdco has also informed the Investor that any routine sale of
Preferred Shares and Warrants made in

                                       6
<PAGE>   7

reliance upon Rule 144 promulgated under the Securities Act can be made only in
accordance with the terms and conditions of such Rule and, further, that in case
such Rule is not applicable to any sale of Preferred Shares and Warrants, as
applicable, resale thereof may require compliance with some other exemption
under the Securities Act prior to resale. Holdco has informed the Investor that
certificates representing the Preferred Shares and Warrants issued pursuant to
this Agreement bear the following legend:

         "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED. SUCH SECURITIES MAY NOT BE SOLD OR OFFERED FOR SALE,
TRANSFERRED OR OTHERWISE ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
STATEMENT WITH RESPECT THERETO UNDER SUCH ACT OR AN EXEMPTION FROM REGISTRATION
FOR SUCH SALE, OFFER, TRANSFER OR OTHER ASSIGNMENT AS SUPPORTED BY SUCH
CERTIFICATIONS, OPINIONS AND OTHER DOCUMENTATION, IF ANY, REASONABLY REQUESTED
AND ACCEPTABLE TO THE CORPORATION."

         4. Covenants.

                  (a) Consummation of the Transactions. Subject to the terms and
conditions of this Agreement, each party shall use its commercially reasonable
efforts to cause the closing of the transaction to which this Agreement relates
to occur upon the terms and conditions set forth herein. Holdco shall cooperate
with the Investor, and the Investor shall cooperate with Holdco, in filing any
necessary applications, reports or other documents with, giving any notices to,
and seeking any consents from, all Governmental Entities and all third parties
as may be required in connection with the consummation of the transactions
contemplated by this Agreement, and each party requesting such cooperation shall
reimburse the other party's reasonable out-of-pocket expenses in providing such
cooperation.

                  (b) Lock-Up. In connection with an initial public offering of
Holdco's securities, the Investor agrees, and the Investor shall secure the
agreement of any transferee therefrom, upon request of the lead underwriter, not
to sell or otherwise transfer or dispose of any Common Stock of Holdco (other
than to an affiliate of the Investor or another holder of any shares of Series A
Convertible Cumulative Preferred Stock (the "Preferred Stock")) for a period
following the effective date of a registration statement of Holdco filed under
the Securities Act with respect to such offering equal to the lesser of (i) the
lock-up period applicable to (a) FrontLine Capital Group, (b) CarrAmerica (so
long as it owns in excess of 9% of the outstanding shares of Common Stock), (c)
holders of Preferred Stock, and (d) senior executive officers of Holdco and (ii)
six (6) months.

         5. Conditions to Closing.

                  (a) Each Party's Obligation. The respective obligations of
each party hereto to effect the transactions contemplated by this Agreement are
subject to the satisfaction (or waiver) as of the Closing Date of the following
conditions: (i) no statute, rule, regulation, executive order, decree, temporary
restraining order, preliminary or permanent injunction or other order

                                       7
<PAGE>   8

shall have been enacted, entered, promulgated, enforced or issued by any
Governmental Entity that prohibits the performance of this Agreement or the
consummation of the transactions contemplated by this Agreement; and (ii) no
action, claim, proceeding or investigation shall be pending or threatened by any
Governmental Entity (other than a court acting in response to an action, claim
or proceeding brought by a non-Governmental Entity) that, if successful, would
prohibit the performance of this Agreement or the consummation of the
transactions contemplated by this Agreement.

                  (b) Obligation of Holdco. The obligations of Holdco hereunder
are subject to the satisfaction (or waiver by Holdco) as of the Closing Date of
the following conditions:

                           (i) The representations and warranties of the
Investor made in this Agreement shall be true and correct as of the date hereof
and as of the Closing Date as though made as of such time, except (1) to the
extent such representations and warranties expressly relate to an earlier date
(in which case such representations and warranties shall be true and correct on
and as of such earlier date) or (2) where the failure of any representations and
warranties other than the representation and warranty set forth in Section 3(d)
to be true and correct would not have an Investor Material Adverse Effect, and
the Investor shall have duly performed, complied with and satisfied in all
material respects all covenants, agreements and conditions required by this
Agreement to be performed, complied with or satisfied by the Investor by the
Closing Date. On the Closing Date, the Investor shall have delivered to Holdco a
certificate, dated the Closing Date and signed by an officer of the Investor,
confirming the foregoing.

                           (ii) On the Closing Date, the Investor shall have
delivered to Holdco a secretary's certificate, dated the Closing Date, attesting
to the authorization of the Investor to consummate the transactions contemplated
by this Agreement.

                           (iii) All filings, registrations, authorizations,
permits, consents and approvals required for the Investor's consummation of the
transactions contemplated by this Agreement shall have been made or obtained, as
applicable.

                           (iv) At the Closing Date, the Investor shall have
executed and delivered to Holdco the Registration Rights Agreement and (assuming
due execution and delivery by the other parties thereto) the same shall be in
full force and effect.

                           (v) At the Closing Date, the Investor shall have
deposited the Purchase Price in immediately available funds with the Escrow
Agent.

                  (c) Investor's Obligation. The obligations of the Investor
hereunder are subject to the satisfaction (or waiver by the Investor) as of the
Closing Date of the following conditions:

                           (i) The representations and warranties of Holdco made
in this Agreement shall be true and correct as of the date hereof and as of the
time of the Closing Date as though made as of such time, except (1) to the
extent such representations and warranties expressly

                                       8
<PAGE>   9

relate to an earlier date (in which case such representations and warranties
shall be true and correct on and as of such earlier date), (2) where the failure
of any representations and warranties other than the representations and
warranties set forth in Sections 2(d), (e), (f) or (g) to be true and correct
would not have a Holdco Material Adverse Effect, or (3) that the representation
and warranty set forth in Section 2(d) shall be true and correct other than in
any de minimis respect, and Holdco shall have duly performed, complied with and
satisfied in all material respects all covenants, agreements and conditions
required by this Agreement to be performed, complied with or satisfied by Holdco
by the Closing Date. On the Closing Date, Holdco shall have delivered to the
Investor a certificate, dated the Closing Date and signed by an officer of
Holdco, confirming the foregoing.

                           (ii) At the Closing Date, Holdco shall have delivered
to the Investor a secretary's certificate, dated the Closing Date, attesting to
its authorization to consummate the transactions contemplated by this Agreement.

                           (iii) Since the date of this Agreement, Holdco and
its subsidiaries taken as a whole shall not have suffered a Holdco Material
Adverse Effect.

                           (iv) All filings, registrations, authorizations,
permits, consents and approvals required for Holdco's consummation of the
transactions contemplated by this Agreement shall have been made or obtained, as
applicable.

                           (v) On the Closing Date, Holdco shall have executed
and delivered to the Investor the Registration Rights Agreement and (assuming
due execution and delivery by the other parties thereto) the same shall be in
full force and effect.

                           (vi) On or prior to the Closing Date, Holdco shall
have received an executed copy of each of the Note and Warrant Purchase
Agreement, attached hereto as Exhibit F, and, on the Closing Date, except as
disclosed in Schedule 5(c), no other indebtedness of Holdco for borrowed money
shall be outstanding.

                           (vii) On or prior to Closing Date, the Certificate of
Designations in the form of Exhibit A hereto shall have been accepted for filing
by, and duly filed with, the Secretary of State of the State of Delaware.

                           (viii) On the Closing Date, the Investor shall have
received the favorable opinion, dated the Closing Date, of Brown & Wood LLP,
counsel to Holdco, substantially in the form attached as Exhibit G hereto.

                           (ix) On the Closing Date, Holdco shall have delivered
the Preferred Shares and Warrants to the Investor.

                  (d) Frustration of Closing Conditions. The Investor may not
rely on the failure of any condition set forth in Sections 5(a), (b) or (c),
respectively, to be satisfied if such failure was caused by such party's failure
to perform its obligations hereunder or to use its commercially

                                       9
<PAGE>   10

reasonable efforts to cause the closing of the transaction to which this
Agreement relates to occur as required by Section 5.

         6. Further Assurances. From time to time, as and when requested by
another party hereto, a party hereto shall execute and deliver, or cause to be
executed and delivered, all such documents and instruments and shall take, or
cause to be taken, all such further or other actions as such other party may
reasonably deem necessary or desirable to consummate the transactions
contemplated by this Agreement.

         7. Assignment. This Agreement and the rights and obligations hereunder
shall not be assignable or transferable by (i) Holdco without the prior written
consent of the Investor or (ii) by the Investor without the prior written
consent of Holdco. Any attempted assignment in violation of this Section 7 shall
be void ab initio and of no further force and effect.

         8. No Third-Party Beneficiaries. This Agreement is for the sole benefit
of the parties hereto and their successors and permitted assigns, and nothing
herein expressed or implied shall give or be construed to give to any person,
other than the parties hereto and such permitted successors and assigns, any
legal or equitable rights hereunder.

         9. Amendments. No amendment, modification or waiver in respect of this
Agreement shall be effective unless it shall be in writing and signed by the
party against whom such amendment, modification or waiver is asserted.

         10. Representations, Warranties and Agreements to Survive Delivery. All
representations, warranties and agreements contained in this Agreement or in the
certificates of officers of the Investor submitted pursuant hereto shall remain
operative and in full force and effect for a period of one year (or, in the case
of the representation and warranty specified in Section 5(A)(b) of the Merger
Agreement, for the period of any applicable statute of limitations) following
the Closing Date. Notwithstanding anything to the contrary contained in the
foregoing, nothing in this Section 10 is intended to indicate that any
representation or warranty will be true at any time other than at the time of
execution of this Agreement and on the Closing Date.

         11. Indemnification.

                  (a) Indemnity by FCG and Holdco. FCG and Holdco, jointly and
severally, shall indemnify the Investor and its affiliates, controlling persons,
constituent partners and subsidiaries and their directors, officers, members,
employees, attorneys and representatives against all expenses, costs, losses,
claims, damages, liabilities and judgments (including, without limitation,
reasonable attorney's fees and expenses) incurred or sustained by any such party
resulting from (i) any breach of the representations and warranties of Holdco in
Section 2, (ii) FCG's, Holdco's or VANTAS' acts or failure to act, (iii) any
misstatements or omissions made in any disclosure or other information or
materials delivered or made available to the Investor in connection with the
investment contemplated under this Agreement, (iv) the action or failure to act
by an indemnified party with FCG's,

                                       10
<PAGE>   11

Holdco's or VANTAS' consent or in reliance on FCG's, Holdco's or VANTAS' action
or failure to act or (v) any and all environmental liabilities costs and
expenses arising out of or incurred in connection with the consummation of the
Merger, the Second Step Merger or the investment contemplated in this Agreement;
provided, however, that such indemnity shall not extend to any expenses, costs,
losses, claims, damages, liabilities or judgments to the extent arising out of
(A) the gross negligence or willful misconduct of any person indemnified under
this Section 11(a) as determined by a court of competent jurisdiction in a
final, non-appealable judgment or (B) a breach by the Investor of its
representations and warranties contained herein.

         FCG agrees to indemnify the Investor against any Company Level Loss or
Direct Loss (each as defined below) arising out of (i) Rule 10b-5 under the
Exchange Act with respect to VANTAS' failure to file reports with the Securities
and Exchange Commission as required under the Exchange Act prior to June 1, 2000
or (ii) the Shareholder Litigation (as defined in the Form of Indemnification
and Escrow Agreement attached as Exhibit E to the Merger Agreement (the
"Indemnification Agreement"). FCG shall pay the Investor, in full and complete
satisfaction of FCG's obligation under clause (ii) of this paragraph, an amount
(which, in the case of a Direct Loss, shall not exceed such Direct Loss) equal
to the product of (A) a fraction, the numerator of which equals the sum of the
number of shares of Preferred Stock (determined on an As-Converted Basis) and
the number of shares of Common Stock purchasable upon exercise of the Initial
Warrants, in each case owned by the Investor at the Closing, and the denominator
of which equals the sum of the number of shares of Preferred Stock (determined
on an As-Converted Basis) and the number of shares of Common Stock purchasable
upon exercise of the Initial Warrants, in each case owned by the Investor at the
Closing, and the number of shares of Common Stock owned by FCG at the Closing,
multiplied by (B) the dollar value of any recovery obtained by FCG from
CarrAmerica under the Indemnification Agreement. A "Company Level Loss" shall
mean any loss, liability, claim, damage or expense (including, without
limitation, reasonable attorney's fees and expenses) incurred by Holdco or Old
HQ or its successor; it being understood that a Company Level Loss shall not
include (i) any consequential, incidental or punitive damages or (ii) any Direct
Loss; it being understood that a Company Level Loss shall include any loss or
damage suffered by the Investor as a result of a diminution in value (either
directly or indirectly) of the interest held by the Investor in Holdco. A
"Direct Loss" shall mean any loss, liability, claim, damage or expense
(including reasonable attorney's fees and expenses) incurred by the Investor; it
being understood that a Direct Loss shall not include (i) any consequential,
incidental or punitive damages, (ii) any Company Level Loss or (iii) any loss or
damage suffered by the Investor as a result of a diminution in value (either
directly or indirectly) of the interest held by the Investor in Holdco.

                  (b) Indemnity by the Investor. The Investor shall indemnify
FCG, Holdco and their respective directors, officers and employees against all
expenses, costs, losses, claims, damages, liabilities and judgments (including,
without limitation, reasonable attorney's fees and expenses) incurred or
sustained by any such party resulting from any breach of the representations and
warranties of the Investor set forth in Section 3; provided, however, that such
indemnity shall not extend to any expenses, costs, losses, claims, damages,
liabilities and judgments to the extent arising out of (A) the gross negligence
or willful misconduct of any

                                       11
<PAGE>   12

person indemnified under this Section 11(b) as determined by a court of
competent jurisdiction in a final, non-appealable judgment or (B) a breach by
Holdco of the representations and warranties set forth in Section 2 of this
Agreement. Under no circumstances shall the Investor be liable to FCG, Holdco or
any other indemnified party under this Section 11(b) for any punitive,
exemplary, consequential or indirect damages arising therefrom.

                  (c) Notice of Actions or Proceedings. In case any action or
proceeding shall be commenced involving any party in respect of which indemnity
may be sought pursuant to Sections 11(a) or 11(b) (the "indemnified party"), the
indemnified party shall promptly notify the party against whom such indemnity
may be sought (the "indemnifying party") in writing of such action or
proceeding; provided, however, that failure of an indemnified party to provide
such notice shall not relieve the indemnifying party of its obligations under
this Section 11 if such failure does not materially and adversely affect the
rights of the indemnifying party.

                  (d) Defense of Actions and Proceedings. The indemnifying party
may assume the defense of such action or proceeding provided that the expenses
of the indemnified party are reimbursed as they are incurred (including, without
limitation, the payment of all reasonable and documented fees and expenses of
counsel to the indemnified party) and the indemnifying party has not failed to
comply with any such reimbursement request. Any indemnified party shall have the
right to employ separate counsel in any such action or proceeding and
participate in the defense thereof, but the reasonable fees and expenses of such
counsel shall be at the expense of the indemnified party, unless (i) the
employment of such counsel shall have been specifically authorized in writing by
the indemnifying party, (ii) the indemnifying party shall have failed to assume
the defense of such action or proceeding or (iii) the named parties to any such
action (including any impleaded parties) include both the indemnified party and
the indemnifying party, and the indemnified party shall have been reasonably
advised by such counsel that the representation of the indemnifying party and
the indemnified party by the same counsel would be inappropriate due to actual
or potential differing interests between the indemnifying party and the
indemnified party or there are defenses that are available to the indemnified
party that may be in conflict with or contradict those available to the
indemnifying party (in which case the indemnifying party shall not have the
right to assume the defense of such action on behalf of the indemnified party).
In any such case, the indemnifying party shall not, in connection with any one
action or separate but substantially similar or related actions or proceedings
in the same jurisdiction arising out of the same general allegations or
circumstances, be liable for the reasonable fees and expenses of more than one
separate firm of attorneys for all indemnified parties and all such reasonable
fees and expenses shall be reimbursed as they are incurred. The indemnifying
party shall indemnify and hold harmless the indemnified party from and against
any and all expenses, costs, losses, claims, damages, liabilities and judgments
by reason of any settlement made by the indemnified party of any action effected
with the indemnifying party's written consent. The indemnifying party shall not,
without the prior written consent of the indemnified party, effect any
settlement or compromise of, or consent to the entry of judgment with respect
to, any pending or threatened action or proceeding in respect of which the
indemnified party is or could have been a party and indemnity may be or could
have been sought hereunder by the indemnified party, unless (i) such settlement,
compromise or judgment includes

                                       12
<PAGE>   13

an unconditional release of the indemnified party from all liability on claims
that are the subject matter of such action or proceeding and does not include a
statement as to or an admission of fault or culpability by or on behalf of the
indemnified party and (ii) reasonable prior written notice of settlement,
compromise or judgment is given to the indemnified party.

         12. Notices. All notices or other communications required or permitted
to be given hereunder shall be in writing and shall be delivered by hand or sent
by prepaid telex, cable or telecopy or sent, postage prepaid, by registered,
certified or express mail or reputable overnight courier service and shall be
deemed given when so delivered by hand, telexed, cabled or telecopied, or if
mailed, three days after mailing (one business day in the case of express mail
or overnight courier service), as follows:

                  (i)      if to Holdco,

                           15950 North Dallas Parkway
                           Suite 350
                           Dallas, Texas  75248
                           Attention:  General Counsel
                           Tel:  (972) 361-8100
                           Fax:  (972) 361-8216

                           with copies  to:

                           Brown & Wood LLP
                           One World Trade Center
                           New York, New York  10048
                           Attention:  Edward F. Petrosky, Jr., Esq.
                                        J. Gerard Cummins, Esq.
                           Tel:  (212) 839-5300
                           Fax:  (212) 839-5599

                  (iii)    if to the Investor,

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

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

                           ----------
                           New York, New York
                                             --------
                           Tel: (212)
                                     ----------------
                           Fax: (212)
                                     ----------------
                           Attn: Chief Financial Officer

                                       13
<PAGE>   14

                           with copies to:

                           Sullivan & Cromwell
                           125 Broad Street
                           New York, New York 10004
                           Tel: (212) 558-4000
                           Fax: (212) 558-3588
                           Attn: Gary Israel
                                    Gerald D. Shepherd

or such other address as any party may from time to time specify by written
notice to the other parties hereto.

         13. Interpretation; Exhibits and Schedules. The headings contained in
this Agreement and in any Exhibit to this Agreement are for reference purposes
only and shall not affect in any way the meaning or interpretation of this
Agreement. All Exhibits annexed hereto or referred to herein are hereby
incorporated in and made a part of this Agreement as if set forth in full
herein. Any capitalized term used in any Exhibit but not otherwise defined
therein shall have the meaning ascribed to it in this Agreement. This Agreement
is gender neutral. Any word in this Agreement that refers to a particular gender
shall also refer to all other genders, including masculine, feminine and neuter.

         14. Counterparts. This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement, and
shall become effective when one or more such counterparts have been signed by
each of the parties and delivered to the other party.

         15. Entire Agreement. This Agreement contains the entire agreement and
understanding between the parties hereto with respect to the subject matter
hereof and supersedes all prior agreements and understandings relating to such
subject matter. The parties hereto shall not be liable or bound to any other
party in any manner by any representations, warranties or covenants relating to
such subject matter except as specifically set forth herein.

         16. Brokers. Each party hereto hereby represents and warrants that no
brokers or finders have acted for such party in connection with this Agreement.

         17. Severability. If any provision of this Agreement (or any portion
thereof) or the application of any such provision (or any portion thereof) to
any person or circumstance shall be held invalid, illegal or unenforceable in
any respect by a court of competent jurisdiction, such invalidity, illegality or
unenforceability shall not affect any other provision hereof (or the remaining
portion thereof) or the application of such provision to any other persons or
circumstances.

         18. Consent to Jurisdiction. The Investor agrees to commence any
action, suit or proceeding arising out of this Agreement or transactions
contemplated hereby against the other party either in a federal court located in
the State of New York or if such suit, action or other proceeding may not be
brought in such court for jurisdictional reasons, in a New York state court.
Each party to this Agreement submits and consents to personal jurisdiction in
any such

                                       14
<PAGE>   15

litigation. The Investor further agrees that service of any process, summons,
notice or document delivered by U.S. registered mail to such party's respective
address set forth above shall be effective service of process for any action,
suit or proceeding in New York with respect to any matters to which it has
submitted to jurisdiction in this Section 18. The Investor irrevocably and
unconditionally waives any objection to the laying of venue of any action, suit
or proceeding arising out of this Agreement or the transactions contemplated
hereby in (i) any New York state court or (ii) any federal court located in the
State of New York, and hereby further irrevocably and unconditionally waives and
agrees not to plead or claim in any such court that any such action, suit or
proceeding brought in any such court has been brought in an inconvenient forum.
EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES TRIAL BY JURY IN ANY ACTION OR
PROCEEDING WITH RESPECT TO THIS AGREEMENT.

         19. Governing Law. This Agreement shall be governed by and construed in
accordance with the internal laws of the State of New York applicable to
agreements made and to be performed entirely within such State, without regard
to the conflicts of law principles of such State.

                                       15
<PAGE>   16

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the date first written above.

                                               FRONTLINE CAPITAL GROUP

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

                                               HQ GLOBAL HOLDINGS, INC.

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

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

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

<PAGE>   17

                                  SCHEDULE 2(c)

                                     Nothing

<PAGE>   18

                                  SCHEDULE 2(d)

                          CAPITAL STOCK OF THE COMPANY

         1.       Section 5 of the Stockholders Agreement, dated as of May 31,
                  2000 (the "CarrAmerica Stockholders Agreement"), by and among
                  FrontLine Capital Group, HQ Global Holdings, Inc. and
                  CarrAmerica Realty Corporation contains Participation Rights
                  granting CarrAmerica the right to purchase its "pro rata
                  share" of any issuance by the Company of equity securities
                  (subject to certain qualifications).

         2.       Section 5 of the Amended and Restated Stockholders Agreement,
                  dated the date hereof, by and among FrontLine Capital Group,
                  HQ Global Holdings, Inc. and certain holders of Series A
                  Preferred Stock contains Participation Rights granting holders
                  of Series A Preferred Stock the right to purchase their "pro
                  rata share" of any issuance by the Company of equity
                  securities (subject to certain qualifications).

         3.       Warrants to purchase 2,143,332 shares of Common Stock (subject
                  to antidilution rights), dated May 31, 2000, and warrants to
                  purchase 477,073.908 shares of Common Stock (subject to
                  antidilution rights), dated the date hereof, issued to holders
                  of Series A Preferred Stock.

         4.       Warrants to purchase 1,498,538 shares of Common Stock (subject
                  to antidilution rights), dated the date hereof, issued to UBS
                  AG Stamford Branch (upon the closing of the purchase and sale
                  of the securities referred to in Section 1(a) of the
                  Agreement, these warrants will be canceled and the Mezzanine
                  Warrants for the purchase of 503,545 shares of Common Stock
                  (subject to antidilution rights) will be issued to Blackstone
                  Mezzanine Partners L.P. and other lenders).

         5.       Warrant Agreement dated as of March 4, 1998 by and between
                  OmniOffices, Inc. and Robert A. Arcoro for the purchase of
                  100,000 shares at $20.00 per share. Mr. Arcoro has exercised
                  his warrant for 99,000 shares. Only 1,000 shares remain
                  subject to this agreement.

         6.       Warrant Agreement dated as of March 4, 1998 by and between
                  OmniOffices, Inc. and Joseph Kaidanow for the purchase of
                  85,000 shares at $20.00 per share. Mr. Kaidanow has exercised
                  his warrant for 50,000 shares. Only 35,000 shares remain
                  subject to this agreement.

         7.       Warrant Agreement dated as of March 4, 1998 by and between
                  OmniOffices, Inc. and Kimberly L. Arcoro for the purchase of
                  32,500 shares at $20.00 per share.

         8.       Warrant Agreement dated as of March 4, 1998 by and between
                  OmniOffices, Inc. and Robert A. Arcoro, Jr. for the purchase
                  of 32,500 shares at $20.00 per share.

<PAGE>   19

                  o        The Company is obligated to have authorized and in
                           reserve the shares of common stock receivable upon
                           exercise of each of the warrants under the Warrant
                           Agreements.

                  o        In the event the Company issues non-voting common
                           stock of the Company that is less than fair market
                           value (other than stock options or restricted stock
                           pursuant to stock options plans) the warrantholders
                           are entitled to an adjustment of the warrant shares
                           purchasable under the Warrant.

                  o        The Warrant Agreements contain antidilution
                           provisions that are triggered by distributions to
                           holders of equity capital stock (dividends) and the
                           repurchase of common stock by the Company of common
                           stock at a price that is greater than the fair market
                           value of common stock on the date of the repurchase.

         9.       Purchase Right Agreement, dated as of March 4, 1998, by and
                  among OmniOffices, Inc., Robert A. Arcoro and Joseph Kaidanow
                  pursuant to which if immediately prior the first date on which
                  20% or more of the outstanding shares of common stock of the
                  Company have been publicly distributed or registered and such
                  shares are publicly traded on a national exchange or
                  over-the-counter market, the debt ratio is less than 55.0%
                  (the Company is obligated to offer the warrantholders the
                  right to purchase up to an aggregate of 6,818 shares of common
                  stock of the Company per percentage point below the 55.0%
                  (subject to the adjustments set forth in Section 5(a) of the
                  Warrant Agreement). This Purchase Right is subject to
                  antidilution protection for the benefit of the Company
                  pursuant to Section 10 of the CarrAmerica Stockholders
                  Agreement.

         10.      Pursuant to the Merger Agreement, at the effective time of the
                  Merger, each outstanding option to purchase shares of VANTAS
                  Common Stock granted under the VANTAS 1996 Stock Option Plan
                  (the "VANTAS 1996 Stock Options"), is automatically amended to
                  constitute an option to acquire the number of shares of Voting
                  Common Stock of the Company as the holder of such VANTAS 1996
                  Stock Option would have been entitled to receive as Merger
                  Consideration in the Merger had such holder exercised such
                  VANTAS 1996 Stock Option (free of and without regard to any
                  limitation on the vesting of the right to exercise such VANTAS
                  1996 Stock Option) immediately prior to the effective time of
                  the Merger at an exercise price equal to the quotient of (a)
                  the applicable exercise price for each such VANTAS 1996 Stock
                  Option immediately prior to the effective time of the Merger
                  divided by (b) the Conversion Ratio.

                  The following is a list of options granted under the VANTAS
                  1996 Stock Option Plan that are subject to the foregoing:

                  o        36,750 Options at an exercise price of $2.00

                                       2
<PAGE>   20

                  o        250 Options at an exercise price of $4.75

                  o        40,458 Options at an exercise price of $4.00

         11.      As soon as practicable following the effective time of the
                  Merger, Mr. Gary Kusin and Mr. David Rupert will receive
                  options to purchase common stock of the Company with a value
                  equal to 6X and 4X, respectively, of their respective Base
                  Compensation, or $3,600,000 or $1,600,000, respectively, which
                  will become exercisable over a four-year period (37.5% after
                  18 months, then 12.5% every 6 months up to 100% in total,
                  provided in each case that the executive is still employed by
                  the Company on the applicable vesting date). The exercise
                  price per share will equal the per share valuation used for
                  purposes of the Merger.

         12.      As soon as practicable following the effective time of the
                  Merger, Mr. Kusin and Mr. Rupert will receive a grant of
                  restricted common stock in the Company with a value equal to
                  2.5X and 1.5X, respectively, of their respective Base
                  Compensation, or $1,500,000 or $600,000, respectively, which
                  will become vested over a four-year period (37.5% after 18
                  months, then 12.5% every 6 months up to 100% in total,
                  provided in each case that the executive is still employed by
                  the Company on the applicable vesting date).

         13.      It is anticipated that options and restricted stock with
                  respect to 3% and 1%, respectively, of the outstanding common
                  and preferred stock of the Company will be issued in
                  connection with employee incentive compensation.

                                       3
<PAGE>   21
                                  SCHEDULE 5(c)

                HQ Global Holdings, Inc: Outstanding Indebtedness
                           Existing Letters of Credit

JP MORGAN LETTERS OF CREDIT
<TABLE>
<CAPTION>

LC#                      Letter of Credits Issued     Beneficiary                            Maturity Date
------                   ------------------------     -----------------------------------    -------------------
<S>                      <C>                          <C>                                    <C>
868684                   $    828,630                 RCPI Trust                                      6/1/01

868814                   $    500,000                 W12/14 Wall Acquisition Associates              6/4/01
                                                      L.L.C.

868611                   $    800,000                 405 Lexington, L.L.C.                          6/23/01

868619                   $  1,327,000                 Charleston Landings Associates L.P.             7/1/01

868877                   $    684,000                 Tst 300 Park, L.L.C.                            9/1/00

868897                   $    450,000                 Petula Associates, LTD                         10/21/00

868896                   $    635,850                 Praedium II Broadstone                         10/29/00

868931                   $  1,715,980                 Paramount Group, Inc.                          11/10/00

868934                   $    800,000                 Gainey Ranch Town Center                       12/23/00

868805                   $    526,837.50              233 Broadway Owners L.L.C.                     12/31/00

868806                   $    800,000                 425 Market Street                              12/31/00

868944                   $    600,000                 Commerce Plaza Partners                        1/24/01

868943                   $    450,000                 Cornerstone Two L.C.C.                         1/27/01

TOTAL LETTERS OF CREDIT ISSUED TO JP MORGAN                                         $10,118,297.50
</TABLE>

<PAGE>   22

Schedule 5(c)
         (continued)

FIRST UNION LETTERS OF CREDIT

<TABLE>
<CAPTION>

      SUBSIDIARY         ISSUING BANK        LC#            STATED AMOUNT                 BENEFICIARY                EXPIRY DATE
------------------------ -------------- -------------- ------------------------ --------------------------------- ------------------
<S>                      <C>            <C>            <C>                      <C>                               <C>
OmniOffices, Inc         First Union    S147299        $     37,192.04          Weeks Realty, L.P.                   May 31, 2000

OmniOffices, Inc         First Union    S139489        $    148,000.00          Connecticut General Life Ins.       April 30, 2000
                                                                                Co.

OmniOffices, Inc         First Union    S145655        $     46,000.00          Equitable Life Assurance          December 21, 1999
                                                                                Society of USA, Boston, MA

OmniOffices, Inc         First Union    S402898        $     50,000.00          Golub & Company                    August 31, 2000

HQ Business Centers of   First Union    S148598        $    600,000.00          Fairview Associates                August 31, 2000
North Carolina, Inc.

OmniOffices, Inc         First Union    S116794        $     24,221.33          American National Bank & Trust      June 30, 2000
                                                                                Co. of Chicago

OmniOffices, Inc         First Union    S108660        $    240,000.00          Trizechahn Office Holdings         August 31, 2000

OmniOffices, Inc         First Union    S402416        $     16,000.00          Talcott Realty I Ltd.               June 30, 2000

OmniOffices, Inc         First Union    SM408124C      $     31,751.76          EOP-Westchase Office Properties      May 30, 2000
                                                                                Trust

OmniOffices, Inc         First Union    S063275        $    140,000.00          Realty Bancorp                      March 15, 2000

OmniOffices, Inc         First Union    SM408488C      $     50,000.00          OTR                                January 31, 2000

Executive Office         First Union    S163998        $    775,000.00          Park Avenue Properties             October 15, 2000
Network, Ltd.

OmniOffices, Inc         First Union    S403D44        $    180,000.00          Carol Management Corp.               May 1, 2000

OmniOffices, Inc         First Union    S101387        $    750,000.00          Madison Avenue Associates          August 30, 2000

OmniOffices, Inc         First Union    S114735        $     33,124.05          Talcott Realty I Ltd.               April 30, 2000

OmniOffices, Inc         First Union    S104374        $    160,000.00          DRW Chesterbrook Associates        November 1, 2000

OmniOffices, Inc         First Union    S139498        $     40,000.00          Metro Corp Center, LLC             January 31, 2000

OmniOffices, Inc         First Union    SM408720C      $    250,000.00          Spieker Properties, LP             August 30, 2000

Kiowa, Inc.              First Union    S151696        $    800,000.00          Shorenstein Management, Inc.        April 15, 2000

OmniOffices, Inc         First Union    S111557        $    150,000.00          Acquiport Corp. Ridge, Inc.       February 20, 2000

                         First Union    S132017        $     70,000.00          Airlines Reporting Corp.          September 30, 2000

         TOTAL LETTER OF CREDIT FOR FIRST UNION                                                            $4,591,289.18
</TABLE>

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