<PAGE>

                              SECURITY AGREEMENT

     SECURITY AGREEMENT dated as of May 28, 1999 (as amended and modified, the
"Security Agreement" or this "Agreement") by and among CENTENNIAL HEALTHCARE
 ------------------           ---------
CORPORATION, a Georgia corporation (the "Company"), the subsidiaries of the
                                         -------
Company that are identified on the signature pages attached hereto (the
"Subsidiaries" and collectively with the Company, the "Credit Parties"), and
-------------                                          --------------
FIRST UNION NATIONAL BANK, as agent (in such capacity, the "Administrative
                                                            --------------
Agent" or "Agent") for the Lenders identified hereinbelow.
-----      -----

                              W I T N E S S E T H

     WHEREAS, (i) a $96.5 million revolving credit facility has been established
in favor of the Company and certain subsidiaries pursuant to the terms of the
Credit Documents, (ii) a $128.5 million lease financing facility has been
established in favor of the Company pursuant to the terms of the TROL
Transaction Documents and (iii) a $5 million additional working capital loan has
been made to the Company pursuant to the terms of, and as evidenced by, the
Additional Working Capital Note;

     WHEREAS, the Lenders have made this Security Agreement a condition to
further extensions of credit under the Credit Agreement and the TROL Transaction
Documents;

     NOW, THEREFORE, in consideration of the premises and to induce the Lenders
to make their respective loans and extensions of credit thereunder, the Credit
Parties hereby agree with the Administrative Agent, for the ratable benefit of
the Lenders, as follows:

     1.  Defined Terms.
         -------------

     1.1  Definitions.  (a) Unless otherwise defined herein, terms defined
          -----------
in the Credit Agreement and used herein shall have the meanings given to them in
the Credit Agreement, and the following terms which are defined in the Uniform
Commercial Code in effect in the State of Georgia on the date hereof are used
herein as so defined:  Accounts, Chattel Paper, Documents, Equipment, Farm
Products, Fixtures, General Intangibles, Instruments, Inventory, Investment
Property and Proceeds.

     (b)  The following terms shall have the following meanings:

          "Agency Agreement":  such term as referenced and defined in Appendix A
           ----------------
     of the Participation Agreement.

          "Collateral":  as defined in Section 2 of this Agreement; provided
           ----------                                               --------
     that Collateral shall not include any property which is subject to a Lien
     permitted under Section 6.4 of the Credit Agreement securing Indebtedness
     permitted under Section 6.1 of the Credit Agreement to the extent that the
     grant of a security interest hereunder would be prohibited by such Lien or
     by the terms of such Indebtedness.

          "Collateral Account":  any collateral account established by the
           ------------------
     Administrative Agent as provided in subsection 3.3 hereof or subsection 7.2
     hereof.

          "Contracts":  all other contracts and agreements to which a Credit
           ---------
     Party is a party, as each may be amended, supplemented or otherwise
     modified from time to time, including, without limitation, (i) all rights
     of a Credit Party to receive moneys due and to become due to it thereunder
     or in connection therewith, (ii) all rights of a Credit Party to damages
     arising out of or for breach or default in respect thereof and (iii) all
     rights of a Credit Party to exercise all remedies thereunder.

          "Copyright Licenses":  any written agreement, naming any Credit Party
           ------------------
     as licensor, granting any right under any Copyright including, without
     limitation, any thereof referred to in Schedule 3 hereto.
                                            ----------

          "Copyrights":  (i) all United States copyrights in all Works, now
           ----------
     existing or hereafter created or acquired, all registrations and recordings
     thereof, and all applications in connection therewith, including, without
     limitation, registrations, recordings and applications in the United States
     Copyright office
<PAGE>

     including, without limitation, any thereof referred to in
     Schedule 3 hereto, and (ii) all renewals thereof including, without
     ----------
     limitation, any thereof referred to in Schedule 3 hereto.
                                            ----------

          "Credit Agreement":  that Third Amended and Restated Credit Agreement
           ----------------
     dated as of July 31, 1998, as amended, modified, supplemented, extended,
     renewed or replaced, among the Company and the subsidiaries and affiliates
     identified therein, as Borrowers, the lenders identified therein and First
     Union National Bank, as administrative agent.

          "Credit Documents":  the Loan Documents as referenced and defined in
           ----------------
     the Credit Agreement, including the Credit Agreement, the Notes, the Pledge
     Agreement, the Security Agreement, the Mortgages and the other Collateral
     Security Documents, in each case as amended, modified, supplemented,
     extended, renewed or replaced. Terms used but not otherwise defined have
     the meanings provided in the Credit Agreement.

          "Credit Facility":  the revolving credit facility established in favor
           ---------------
     of the Company pursuant to the terms of the Credit Agreement.

          "Guarantors":  the Persons which give a guaranty in respect of any of
           ----------
     the Secured Obligations.

          "Lease Agreements":  such term as referenced and defined in Appendix A
           ----------------
     of the Participation Agreement.

          "Lease Finance Facility":  the lease financing facility established in
           ----------------------
     favor of the Company pursuant to the terms of the TROL Transaction
     Documents.

          "Lenders":  the holders of the Secured Obligations.
           -------

          "Operative Agreements":  such term as referenced and defined in
           --------------------
     Appendix A of the Participation Agreement.

          "Participation Agreement":  that Participation Agreement dated as of
           -----------------------
     July 29, 1998, as amended, modified, supplemented, extended, renewed or
     replaced, among the Company, the Guarantors identified therein, First
     Security Bank, National Association, as Owner Trustee under the Centennial
     Real Estate Trust 1998-1, the Lenders and Holders identified therein and
     from time to time party thereto, First Union Capital Markets, a division of
     Wheat First Securities, Inc., as Syndication Agent and NationsBank, N.A.,
     as Agent.

          "Patent License":  all agreements, whether written or oral, providing
           --------------
     for the grant by or to a Credit Party of any right to manufacture, use or
     sell any invention covered by a Patent, including, without limitation, any
     thereof referred to in Schedule 4 hereto.
                            ----------
          "Patents":  (a) all letters patent of the United States or any other
           -------
     country and all reissues and extensions thereof, including, without
     limitation, any thereof referred to in Schedule 4 hereto, and (b) all
                                            ----------
     applications for letters patent of the United States or any other country
     and all divisions, continuations and continuations-in-part thereof,
     including, without limitation, any thereof referred to in Schedule 4
                                                               ----------
     hereto.

          "Secured Obligations":  the collective reference to the following:
           -------------------

               (i)  all unpaid principal of and interest on (including interest
     accruing after maturity and after the commencement of bankruptcy or
     insolvency proceedings) the loans and other obligations owing under the
     Credit Agreement, and all other indebtedness, liabilities and obligations
     owing thereunder or under the other Credit Documents, whether now existing
     or hereafter arising, and whether primary, secondary, direct, contingent,
     or joint and several;

                                       2
<PAGE>

               (ii)   any and all obligations now existing or hereafter arising,
     owing by the Company, the Guarantors and/or any of their affiliates under
     or pursuant to the TROL Transaction Documents, including specifically
     without limitation all obligations and liabilities of the Company, the
     Guarantors and their affiliates under or with respect to the Participation
     Agreement, the Lease Agreement, the Agency Agreement and each of the other
     Operative Agreements;

               (iii)  all unpaid principal of and interest on (including
     interest accruing after maturity and after the commencement of bankruptcy
     or insolvency proceedings) the loans and other obligations owing under the
     Additional Working Capital Note, and all other indebtedness, liabilities
     and obligations owing thereunder or under any other documents executed in
     connection therewith, whether now existing or hereafter arising, and
     whether primary, secondary, direct, contingent, or joint and several;

               (iv)   the net amount of liabilities and obligations, now
     existing or hereafter arising, owing by the Company, any Guarantor or any
     Credit Party to any Lender or any affiliate of a Lender arising under
     interest rate protection agreements and/or foreign currency exchange
     agreements to the extent permitted under the Credit Agreement; and

               (v)    all indebtedness, liabilities and obligations of any kind
     or nature, now existing or hereafter arising, owing by the Credit Parties
     to any Lender or the Administrative Agent, arising under this Security
     Agreement, any mortgages, deeds of trust, deeds to secure debt or security
     deeds, or any of the other Credit Documents, TROL Transaction Documents,
     the Additional Working Capital Note or any documents relating to the
     Hedging Obligations

          "Security Documents":  such term as referenced and defined in Appendix
           ------------------
     A of the Participation Agreement.

          "Trademark License":  any agreement, written or oral, providing for
           -----------------
     the grant by or to a Credit Party of any right to use any Trademark,
     including, without limitation, any thereof referred to in Schedule 5
                                                               ----------
     hereto.

          "Trademarks":  (a) all trademarks, trade names, corporate names,
           ----------
     company names, business names, fictitious business names, trade styles,
     service marks, logos and other source or business identifiers, and the
     goodwill associated therewith, now existing or hereafter adopted or
     acquired, all registrations and recordings thereof, and all applications in
     connection therewith, whether in the United States Patent and Trademark
     Office or in any similar office or agency of the United States, any State
     thereof or any other country or any political subdivision thereof, or
     otherwise, including, without limitation, any thereof referred to in
     Schedule 5 hereto, and (b) all renewals
     ----------
     thereof.

          "TROL Transaction Documents":  collectively, the Participation
           --------------------------
     Agreement, the Lease Agreement, the Agency Agreement and each of the other
     Operative Agreements, in each case as amended, modified, supplemented,
     extended, renewed or replaced.

          "Uniform Commercial Code":  the Uniform Commercial Code as from time
           -----------------------
     to time in effect in the State of Georgia.

          "Work":  any work which is subject to copyright protection pursuant to
           ----
     Title 17 of the United States Code.

     1.2  Other Definitional Provisions.  (a) The words "hereof," "herein"
          -----------------------------
and "hereunder" and words of similar import when used in this Agreement shall
refer to this Agreement as a whole and not to any particular provision of this
Agreement, and section and paragraph references are to this Agreement unless
otherwise specified.

     (b)  The meanings given to terms defined herein shall be equally applicable
to both the singular and plural forms of such terms.

                                       3
<PAGE>

     2.   Grant of Security Interest. As collateral security for the prompt
          --------------------------
and complete payment and performance when due (whether at the stated maturity,
by acceleration or otherwise) of the Secured Obligations, each of the Credit
Parties hereby grants to the Administrative Agent, for the ratable benefit of
the Lenders, a security interest in all of the following property now owned or
at any time hereafter acquired by such Credit Party or in which such Credit
Party now has or at any time in the future may acquire any right, title or
interest (collectively, the "Collateral"):
                             ----------

          (a)  all Accounts;

          (b)  all Chattel Paper;

          (c)  all Contracts;

          (d)  all Copyrights;

          (e)  all Copyright Licenses;

          (f)  all Documents;

          (g)  all Equipment;

          (h)  all Fixtures;

          (i) all General Intangibles, including Contracts;

          (j)  all Instruments;

          (k)  all Inventory;

          (l)  all Investment Property;

          (m)  all Patents;

          (n)  all Patent Licenses;

          (o)  all Trademarks;

          (p)  all Trademark Licenses;

          (q)  all books, records, ledger cards, files, correspondence,
               computer programs, tapes, disks, and related data processing
               software (owned by such Credit Party or in which it has an
               interest) that at any time evidence or contain information
               relating to any Collateral or are otherwise necessary or helpful
               in the collection thereof or realization thereupon; and

          (r)  to the extent not otherwise included, all Proceeds and
               products of any and all of the foregoing;

provided that this Agreement shall not constitute an assignment of, or a grant
--------
of a security interest in or lien on, any fixtures, contract, lease or other
agreement to which any Credit Party is a party if such assignment or grant of a
security interest or lien is prohibited by the terms of such contract, lease or
agreement.

     This Agreement shall create a continuing security interest in the
Collateral which shall remain in effect until all the Secured Obligations (other
than unasserted indemnity claims), now existing or hereafter arising, have been
paid in full, the commitments relating thereto have been terminated and the
Credit Agreement, the Security Documents or the TROL Transaction Document shall
no longer be in effect.

                                       4
<PAGE>

     3.  Provisions Relating to Accounts.
         -------------------------------

     3.1  Credit Parties Remain Liable under Accounts.  Anything herein to
          -------------------------------------------
the contrary notwithstanding, each of the Credit Parties shall remain liable
under each of the Accounts to observe and perform all the conditions and
obligations to be observed and performed by it thereunder, all in accordance
with the terms of any agreement giving rise to each such Account. Neither the
Administrative Agent nor any Lender shall have any obligation or liability under
any Account (or any agreement giving rise thereto) by reason of or arising out
of this Agreement or the receipt by the Administrative Agent or any Lender of
any payment relating to such Account pursuant hereto, nor shall the
Administrative Agent or any Lender be obligated in any manner to perform any of
the obligations of a Credit Party under or pursuant to any Account (or any
agreement giving rise thereto), to make any payment, to make any inquiry as to
the nature or the sufficiency of any payment received by it or as to the
sufficiency of any performance by any party under any Account (or any agreement
giving rise thereto), to present or file any claim, to take any action to
enforce any performance or to collect the payment of any amounts which may have
been assigned to it or to which it may be entitled at any time or times.

     3.2  Analysis of Accounts.  The Administrative Agent shall have the
          --------------------
right, once during each calendar year or at any time after the occurrence of an
Event of Default, to make test verifications of the Accounts in any manner and
through any medium that it reasonably considers advisable, and the Credit
Parties shall furnish all such assistance and information as the Administrative
Agent may require in connection with such test verifications. At any time after
the occurrence, and during the continuance of, an Event of Default, upon the
Administrative Agent's request and at the expense of the Credit Parties, the
Credit Parties shall cause independent public accountants or others satisfactory
to the Administrative Agent to furnish to the Administrative Agent reports
showing reconciliations, aging and test verifications of, and trial balances
for, the Accounts. The Administrative Agent in its own name or in the name of
others may communicate with account debtors on the Accounts to verify with them
to the Administrative Agent's satisfaction the existence, amount and terms of
any Accounts.

     3.3  Collections on Accounts. (a) The Administrative Agent hereby
          -----------------------
authorizes the Credit Parties to collect the Accounts, provided that the
                                                       --------
Administrative Agent may curtail or terminate said authority at any time after
the occurrence of an Event of Default. If required by the Administrative Agent
at any time after the occurrence of an Event of Default, any payments of
Accounts, when collected by the Credit Parties, (i) shall be forthwith (and, in
any event, within two Business Days) deposited by the Credit Parties in a
Collateral Account maintained under the sole dominion and control of the
Administrative Agent, subject to withdrawal by the Administrative Agent for the
account of the Lenders only as provided in Section 7.3 hereof, and (ii) until so
turned over, shall be held by the Credit Parties in trust for the Administrative
Agent and the Lenders, segregated from other funds of the Credit Parties.

     (b)  Each such deposit of Proceeds of Accounts shall be accompanied by a
report identifying in reasonable detail the nature and source of the payments
included in the deposit.

     (c)  At the Administrative Agent's request after the occurrence of an Event
of Default, the Credit Parties shall deliver to the Administrative Agent copies
of documents in its possession or control (or as to which they have a right or
ability to get) evidencing, and relating to, the agreements and transactions
which gave rise to the Accounts which are necessary for collection of such
Accounts by the Administrative Agent.

     4.   Provisions Relating to Contracts.
          --------------------------------

     4.1  Credit Parties Remain Liable under Contracts.  Anything herein to
          --------------------------------------------
the contrary notwithstanding, each of the Credit Parties shall remain liable
under each of the Contracts to observe and perform all the conditions and
obligations to be observed and performed by it thereunder, all in accordance
with and pursuant to the terms and provisions of each Contract. Neither the
Administrative Agent nor any Lender shall have any obligation or liability under
any Contract by reason of or arising out of this Agreement or the receipt by the
Administrative Agent or any such Lender of any payment relating to such Contract
pursuant hereto, nor shall the Administrative Agent or any Lender be obligated
in any manner to perform any of the obligations of a Credit Party under or
pursuant to any Contract, to make any payment, to make any inquiry as to the
nature or the sufficiency of any payment received by

                                       5
<PAGE>

it or as to the sufficiency of any performance by any party under any Contract,
to present or file any claim, to take any action to enforce any performance or
to collect the payment of any amounts which may have been assigned to it or to
which it may be entitled at any time or times.

     4.2  Communication with Contracting Parties.  The Administrative Agent
          --------------------------------------
in its own name or in the name of others, at any time after the occurrence of an
Event of Default or in connection with any audit of a Contract by the
Administrative Agent or any other Person designated by the Administrative Agent,
may communicate with parties to the Contracts to verify with them to the
Administrative Agent's satisfaction the existence, amount and terms of any
Contract.

     5.   Representations and Warranties.  Each Credit Party hereby
          ------------------------------
represents and warrants that:

     5.1  Title; No Other Liens.  Except for Permitted Liens, the Credit
          ---------------------
Party owns each item of the Collateral free and clear of any and all Liens or
claims of others. No security agreement, financing statement or other public
notice with respect to all or any part of the Collateral is on file or of record
in any public office, except such as have been filed in favor of the
Administrative Agent, for the ratable benefit of the Lenders, pursuant to this
Agreement or as are permitted pursuant to the Credit Agreement or the TROL
Transaction Documents.

     5.2  Perfected First Priority Liens.  Except as otherwise expressly
          ------------------------------
provided in this Agreement, the security interests granted pursuant to this
Agreement (a) upon completion of the filings and other actions specified on
Schedule 2 attached hereto, and possession of such Collateral with respect to
----------
which perfection is acquired by possession, will constitute perfected security
interests in the Collateral in favor of the Administrative Agent, for the
ratable benefit of the Lenders, (b) are prior to all other Liens on the
Collateral in existence on the date hereof except for Permitted Liens and (c)
are enforceable as such against (i) all creditors of and purchasers from the
Credit Party (except purchasers of Inventory in the ordinary course of business)
and (ii) any Person having any interest in the real property where any of the
Equipment is located.

     5.3  Inventory and Equipment.  The Inventory and the Equipment of the
          -----------------------
Credit Party are kept at the locations listed on Schedule 1 hereto.
                                                 ----------

     5.4  Chief Executive Office.  The Credit Party's chief executive
          ----------------------
office and chief place of business, and the place where it keeps its books and
records, is located at the address shown on Schedule 1 hereto.
                                            ----------

     5.5  Farm Products.  None of the Collateral constitutes, or is the
          -------------
Proceeds of, Farm Products.

     5.6  Representations and Warranties Relating to Contracts.  (a) No
          ----------------------------------------------------
consent of any party (other than the Credit Party) to any Contract is required,
or purports to be required, in connection with the execution, delivery and
performance of this Agreement.

     (b)  Each Contract is in full force and effect and constitutes a valid and
legally enforceable obligation of the parties thereto, except as affected by
bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and
other similar laws relating to or affecting creditors' rights generally, general
equitable principles (whether considered in a proceeding in equity or at law)
and an implied covenant of good faith and fair dealing.

     (c)  No consent or authorization of, filing with or other act by or in
respect of any Governmental Authority is required in connection with the
execution, delivery, performance, validity or enforceability of any of the
Contracts by any party thereto other than those which have been duly obtained,
made or performed, are in full force and effect and do not subject the scope of
any such Contract to any material adverse limitation, either specific or general
in nature.

     (d)  Neither the Credit Party nor (to the best of the Credit Party's
knowledge) any other party to any Contract is in default or is likely to become
in default in any material respects in the performance or observance of any of
the terms thereof.


                                       6
<PAGE>

     (e)  The Credit Party has fully performed in all material respects all its
obligations under each Contract.

     (f)  The right, title and interest of the Credit Party in, to and under
each Contract are not subject to any defense, offset, counterclaim or claim
which would materially adversely affect the value of such Contract as
Collateral, nor have any of the foregoing been asserted or alleged against the
Credit Party as to any Contract which would materially adversely affect the
value of such Contract.

     (g)  No amount payable to the Credit Party under or in connection with any
Contract is evidenced by any Instrument or Chattel Paper which has not been
delivered to the Administrative Agent.

     (h)  Except as set forth on Schedule 6 hereto, none of the parties to
                                 ----------
any Contracts is a Governmental Authority.

     5.7  Copyrights, Patents and Trademarks.  (a) Schedule 3 hereto
          ----------------------------------       ----------
includes all Copyrights and Copyright Licenses owned by the Credit Party in its
own name as of the date hereof. Schedule 4 hereto includes all Patents and
                                ----------
Patent Licenses owned by the Credit Party in its own name as of the date hereof.

Schedule 5 hereto includes all Trademarks and Trademark Licenses owned by the
----------
Credit Party in its own name as of the date hereof.

     (b)  To the best of the Credit Party's knowledge, each Copyright
registration, issued Patent and Trademark registration of the Credit Party is
valid, subsisting, unexpired, enforceable and has not been abandoned.

     (c)  Except as set forth in either Schedule 4 hereto or Schedule 5
                                        ----------           ----------
hereto, no Copyright registration, issued Patent and Trademark registration of
the Credit Party is the subject of any licensing or franchise agreement.

     (d)  No holding, decision or judgment has been rendered by any Governmental
Authority which would limit, cancel or question the validity of any Copyright
registration, issued Patent or Trademark registration of the Credit Party.

     (e)  No action or proceeding is pending seeking to limit, cancel or
question the validity of any Copyright registration, issued Patent or Trademark
registration of the Credit Party, or which, if adversely determined, would have
a material adverse effect on the value of any Copyright registration, issued
Patent or Trademark registration.

     6.   Covenants.  Each Credit Party covenants and agrees with the
          ---------
Administrative Agent and the Lenders that, from and after the date of this
Agreement until the Secured Obligations (other than unasserted indemnity claims)
have been satisfied in full and the Commitments have been terminated:

     6.1  Delivery of Instruments and Chattel Paper. If any amount payable
          -----------------------------------------
under or in connection with any of the Collateral shall be or become evidenced
by any Instrument or Chattel Paper, such Instrument or Chattel Paper shall be
immediately delivered to the Administrative Agent, duly indorsed in a manner
satisfactory to the Administrative Agent, to be held as Collateral pursuant to
this Agreement.

     6.2  Marking of Records. The Credit Party will mark its books and
          ------------------
records pertaining to the Collateral to evidence this Agreement and the security
interests created hereby.

     6.3  Maintenance of Perfected Security Interest; Further Documentation. (a)
          ---------------------------------------------------
The Credit Party shall maintain the security interest created by this Agreement
as a perfected security interest subject only to Permitted Liens and shall
defend such security interest against claims and demands of all Persons
whomsoever.

     (b)  At any time and from time to time, upon the written request of the
Administrative Agent, and at the sole expense of the Credit Parties, the Credit
Party will promptly and duly execute and deliver such further instruments and
documents and take such further action (including without limitation all actions
required under the Federal Assignment of Claims Act or any similar state
statute) as the Administrative Agent may reasonably request for the purpose of
obtaining or preserving the full benefits of this Agreement and of the rights
and powers herein

                                       7
<PAGE>

granted, including, without limitation, the filing of any financing or
continuation statements under the Uniform Commercial Code in effect in any
jurisdiction with respect to the security interests created hereby.

     6.4  Changes in Locations, Name, etc.  The Credit Party will not:
          -------------------------------

          (a) permit any of the Inventory or Equipment to be kept at a location
     other than those listed on Schedule 1 hereto, unless it shall have given
                                ----------
     the Administrative Agent and the Lenders at least 30 days' prior written
     notice of such change and any filings required under the Uniform Commercial
     Code in effect in the affected jurisdiction to maintain the perfected
     security interest granted pursuant to this Agreement shall have been made,
     except that Equipment may be moved from such location for a reasonable
     period of time for purposes of repair of such Equipment or for testing in
     the ordinary cause of business;

          (b) change the location of its chief executive office and chief place
     of business or the location at which it maintains its books and records
     from that specified on Schedule 1 hereto, unless it shall have given the
                            ----------
     Administrative Agent and the Lenders at least 30 days' prior written notice
     of such change and any filings required under the Uniform Commercial Code
     in effect in the affected jurisdiction to maintain the perfected security
     interest granted pursuant to this Agreement shall have been made; or

          (c) change its name, identity or corporate structure to such an extent
     that any financing statement filed by the Administrative Agent in
     connection with this Agreement would become seriously misleading, unless it
     shall have given the Administrative Agent and the Lenders at least 30 days'
     prior written notice of such change and any filings required under the
     Uniform Commercial Code in effect in the affected jurisdiction to maintain
     the perfected security interest granted pursuant to this Agreement shall
     have been made.

     6.5  Further Identification of Collateral. The Credit Party will furnish to
          ------------------------------------
the Administrative Agent and the Lenders from time to time upon request, but
prior to the occurrence and during the continuance of an Event of Default, not
more than once in any calendar year, statements and schedules further
identifying and describing the Collateral and such other reports in connection
with the Collateral as the Administrative Agent may reasonably request, all in
reasonable detail.

     6.6  Indemnification. The Credit Parties agree to pay, and to save the
          ---------------
Administrative Agent and the Lenders harmless from, any and all liabilities,
costs and expenses (including, without limitation, reasonable legal fees and
expenses) (i) with respect to, or resulting from any delay in paying, any and
all excise, sales or other taxes which may be payable or determined to be
payable with respect to any of the Collateral, (ii) with respect to, or
resulting from, any delay in complying with any Requirement of Law applicable to
any of the Collateral and (iii) in connection with any of the transactions
contemplated by this Agreement, except for any such liabilities which result
from the gross negligence or willful misconduct of the Administrative Agent. In
any suit, proceeding or action brought by the Administrative Agent or any Lender
under any Account for any sum owing thereunder, the Credit Parties will save,
indemnify and keep the Administrative Agent and such Lender harmless from and
against all expense, loss or damage suffered by reason of any defense, setoff,
counterclaim, recoupment or reduction or liability whatsoever of the account
debtor thereunder, arising out of a breach by any Credit Party of any obligation
thereunder or arising out of any other agreement, indebtedness or liability at
any time owing to or in favor of such account debtor or its successors from any
Credit Parties.

     6.7  Covenants Relating to Accounts Upon Default. At any time after the
          -------------------------------------------
occurrence of an Event of Default:

          (a) the amount represented by the Credit Party to the Lenders from
     time to time as owing by each account debtor or by all account debtors in
     respect of the Accounts will at such time be the correct amount and
     believed by the Credit Party to be actually owing by such account debtor or
     debtors thereunder;

                                       8
<PAGE>

          (b) the Credit Party will not amend, modify, terminate or waive any
     agreement giving rise to an Account in any manner which would reasonably be
     expected to materially adversely affect the value of the Accounts as
     Collateral;

          (c) the Credit Party will not fail to exercise promptly and diligently
     each and every material right which it may have under each agreement giving
     rise to an Account (other than any right of termination);

          (d) the Credit Party will not fail to deliver to the Administrative
     Agent a copy of each material demand, notice or document received by it
     relating in any way to any agreement giving rise to an Account; and

          (e) other than in the ordinary course of business as generally
     conducted by the Credit Party, the Credit Party will not grant any
     extension of the time of payment of any of the Accounts, compromise,
     compound or settle the same for less than the full amount thereof, release,
     wholly or partially, any Person liable for the payment thereof, or allow
     any credit or discount whatsoever thereon.

     6.8  Covenants Relating to Contracts. (a) The Credit Party will perform and
          -------------------------------
comply in all material respects with all its obligations under the Contracts and
all its other Contractual Obligations relating to the Collateral.

     (b)  The Credit Party will promptly provide upon request to the
Administrative Agent copies of particular Contracts and each material demand,
notice or document relating thereto.

     (c)  In any suit, proceeding or action brought by the Administrative Agent
or any Lender under any Contract for any sum owing thereunder, or to enforce any
provisions of any Contract, the Credit Party will save, indemnify and keep the
Administrative Agent and such Lenders harmless from and against all expense,
loss or damage suffered by reason of any defense, setoff, counterclaim,
recoupment or reduction or liability whatsoever of the Credit Party thereunder,
arising out of a breach by the Credit Party of any obligation thereunder or
arising out of any other agreement, indebtedness or liability at any time owing
to or in favor of such obligor or its successors from the Credit Party except
for any such expense, loss or damage which results from the gross negligence of
the willful misconduct of the Administrative Agent or such Lender.

     6.9  Covenants Relating to Copyrights. (a) The Credit Party will employ the
          --------------------------------
Copyright for each Work with such notice of copyright as may be required by law
to secure copyright protection.

     (b)  The Credit Party will not do any act or knowingly omit to do any act
whereby any material Copyright may become invalidated and (i) will not do any
act, or omit to do any act, whereby any material Copyright may become injected
into the public domain; (ii) shall notify the Administrative Agent immediately
if it knows, or has reason to know, that any material Copyright may become
injected into the public domain or of any adverse determination or development
(including, without limitation, the institution of, or any such determination or
development in, any court or tribunal in the United States or any other country)
regarding the Credit Party's ownership of any such Copyright or its validity;
(iii) will take all necessary steps as it shall deem appropriate under the
circumstances, to maintain and pursue each application (and to obtain the
relevant registration) and to maintain each registration of each material
Copyright owned by the Credit Party including, without limitation, filing of
applications for renewal where necessary; and (iv) will promptly notify the
Administrative Agent of any material infringement of any material Copyright of
the Credit Party of which it becomes aware and will take such actions as it
shall reasonably deem appropriate under the circumstances to protect such
Copyright, including, where appropriate, the bringing of suit for infringement,
seeking injunctive relief and seeking to recover any and all damages for such
infringement.

     6.10 Covenants Relating to Patents and Trademarks.  (a) The Credit
          --------------------------------------------
Party (either itself or through licensees) will, except with respect to any
Trademark that the Credit Party shall reasonably determine is of negligible
economic value to it, (i) continue to use each Trademark on each and every
trademark class of goods applicable to its current line as reflected in its
current catalogs, brochures and price lists in order to maintain such

                                       9
<PAGE>

Trademark in full force free from any claim of abandonment for non-use, (ii)
maintain as in the past the quality of products and services offered under such
Trademark, (iii) employ such Trademark with the appropriate notice of
registration, (iv) not adopt or use any mark which is confusingly similar or a
colorable imitation of such Trademark unless the Administrative Agent, for the
ratable benefit of the Lenders, shall obtain a perfected security interest in
such mark pursuant to this Agreement, and (v) not (and not permit any licensee
or sublicensee thereof to) do any act or knowingly omit to do any act whereby
any Trademark may become invalidated.

     (b)  The Credit Party will not, except with respect to any Patent that the
Credit Party shall reasonably determine is of negligible economic value to it,
do any act, or omit to do any act, whereby any Patent may become abandoned or
dedicated.

     (c)  The Credit Party will notify the Administrative Agent and the Lenders
immediately if it knows, or has reason to know, that any application or
registration relating to any Patent or Trademark may become abandoned or
dedicated, or of any adverse determination or development (including, without
limitation, the institution of, or any such determination or development in, any
proceeding in the United States Patent and Trademark Office or any court or
tribunal in any country) regarding the Credit Party's ownership of any Patent or
Trademark or its right to register the same or to keep and maintain the same.

     (d)  Whenever the Credit Party, either by itself or through any agent,
employee, licensee or designee, shall file an application for the registration
of any Patent or Trademark with the United States Patent and Trademark Office or
any similar office or agency in any other country or any political subdivision
thereof, the Credit Party shall report such filing to the Administrative Agent
and the Lenders within five Business Days after the last day of the fiscal
quarter in which such filing occurs. Upon request of the Administrative Agent,
the Credit Party shall execute and deliver any and all agreements, instruments,
documents and papers as the Agent may request to evidence the Administrative
Agent's and the Lenders' security interest in any Patent or Trademark and the
goodwill and general intangibles of the Credit Party relating thereto or
represented thereby.

     (e)  The Credit Party will take all reasonable and necessary steps,
including, without limitation, in any proceeding before the United States Patent
and Trademark Office, or any similar office or agency in any other country or
any political subdivision thereof, to maintain and pursue each application (and
to obtain the relevant registration) and to maintain each registration of the
Patents and Trademarks, including, without limitation, filing of applications
for renewal, affidavits of use and affidavits of incontestability.

     (f)  In the event that any Patent or Trademark included in the Collateral
is infringed, misappropriated or diluted by a third party, the Credit Party
shall promptly notify the Administrative Agent and the Lenders after it learns
thereof and shall, unless the Credit Party shall reasonably determine that such
Patent or Trademark is of negligible economic value to the Credit Party which
determination the Credit Party shall promptly report to the Administrative Agent
and the Lenders, promptly sue for infringement, misappropriation or dilution, to
seek injunctive relief where appropriate and to recover any and all damages for
such infringement, misappropriation or dilution, or take such other actions as
the Credit Party shall reasonably deem appropriate under the circumstances to
protect such Patent or Trademark.

     6.11 Covenants Relating to Inventory and Equipment
          ---------------------------------------------

     (a)  The Credit Party will, upon ten (10) days' written notice from the
Administrative Agent, provide a physical history of Inventory and/or Equipment
on a quarterly basis or, after the occurrence of an Event of Default, more
frequently .

     (b)  The Credit Party shall, at its own expense, maintain insurance with
respect to the Equipment and Inventory in such amounts, against such risks, in
such form and with such insurers, as shall be reasonably satisfactory to the
Administrative Agent from time to time. Each policy for liability insurance
shall provide for all losses to be paid on behalf of the Administrative Agent
and the Credit Party as their interests may appear, and each policy for property
damage insurance shall provide for all losses (except for losses of less than
$_____ per occurrence) to be paid directly to the Administrative Agent. Each
such policy shall in addition (i) name the Credit Party and the Administrative
Agent as insured parties thereunder (without any representation or warranty by
or

                                       10
<PAGE>

obligation upon the Administrative Agent) as their interests may appear, (ii)
contain the agreement by the insurer that any loss thereunder shall be payable
to the Administrative Agent notwithstanding any action, inaction or breach of
representation or warranty by the Credit Party, (iii) provide that there shall
be no recourse against the Administrative Agent for payment of premiums or other
amounts with respect thereto and (iv) provide that at least thirty (30) days'
prior written notice of cancellation or lapse shall be given to the
Administrative Agent by the insurer. The Credit Party shall, if so requested by
the Administrative Agent, deliver to the Administrative Agent original or
duplicate policies of such insurance and, as often as the Administrative Agent
may reasonably request, a report of a reputable insurance broker with respect to
such insurance. Further, the Credit Party shall, at the request of the
Administrative Agent, duly exercise and deliver instruments of assignment of
such insurance policies to comply with the requirements of Section 6.3 hereof
and cause the insurers to acknowledge notice of such assignment.

     (c)  In the case of any loss involving damage to Equipment or Inventory of
the Credit Party, the Credit Party shall make or cause to be made the necessary
repairs to or replacements of such Equipment or Inventory, and any proceeds of
insurance properly received by or released to the Credit Party shall be used by
the Credit Party, except as otherwise required or permitted hereunder or by the
Credit Agreement, to pay or as reimbursement for the costs of such repairs or
replacements.

     (d)  So long as no Event of Default shall have occurred, all insurance
payments received by the Administrative Agent in connection with any loss,
damage or destruction of any Inventory or Equipment shall be released by the
Administrative Agent to the Credit Party for the repair, replacement or
restoration thereof. To the extent that (i) the amount of any such insurance
payments exceeds the cost of any such repair, replacement or restoration, or
(ii) such insurance payments are not otherwise required by the Credit Party to
complete any such repair, replacement or restoration required hereunder, the
Administrative Agent shall not be required to release the amount thereof to the
Credit Party and may hold or continue to hold such amount in a Collateral
Account as additional security for the Secured Obligations (except that any such
amount shall be released by the Administrative Agent to the Credit Party if no
Event of Default has occurred). If an Event of Default has occurred, the
Administrative Agent may elect, in its sole and absolute discretion, to release
any such insurance payments for the purposes set forth in the first sentence of
this Section 6.11(d), or to hold such insurance payments as additional
Collateral hereunder or apply the same in the order set forth is Section 3.14(b)
of the Credit Agreement.

     7.  Remedies.  Notwithstanding anything contained herein to the
         --------
contrary, an exercise of remedies under this Security Agreement shall be made
only by direction of Lenders holding a majority in interest of the Secured
Obligations.

     7.1  Notice to Account Debtors and Contract Parties.  Upon the request
          ----------------------------------------------
of the Administrative Agent at any time after the occurrence of an Event of
Default, the Credit Parties shall notify account debtors on the Accounts and
parties to the Contracts that the Accounts and the Contracts have been assigned
to the Administrative Agent for the ratable benefit of the Lenders and that
payments in respect thereof shall be made directly to the Administrative Agent.

     7.2  Proceeds to be Turned Over To Administrative Agent.  In addition
          --------------------------------------------------
to the rights of the Administrative Agent and the Lenders specified in Section
3.3 hereof with respect to payments of Accounts, after the occurrence of an
Event of Default all Proceeds received by the Credit Parties consisting of cash,
checks and other near-cash items shall be held by the Credit Parties in trust
for the Administrative Agent and the Lenders, segregated from other funds of the
Credit Parties, and shall, forthwith upon receipt by the Credit Parties, be
turned over to the Administrative Agent in the exact form received by the Credit
Parties (duly indorsed by the Credit Parties to the Administrative Agent in a
manner satisfactory to the Administrative Agent, if required by the
Administrative Agent) and held by the Administrative Agent in a Collateral
Account maintained under the sole dominion and control of the Administrative
Agent.  All Proceeds while held by the Administrative Agent in a Collateral
Account (or by the Credit Parties in trust for the Administrative Agent and the
Lenders) shall continue to be held as collateral security for all the Secured
Obligations and shall not constitute payment thereof until applied as provided
in subsection 7.3 hereof.

                                       11
<PAGE>

     7.3   Application of Proceeds.  At such intervals as may be agreed
           -----------------------
upon by the Credit Parties and the Administrative Agent or at any time after an
Event of Default shall have occurred, at the Administrative Agent's election,
the Administrative Agent may apply all or any part of Proceeds held in any
Collateral Account in ratable payment of the Secured Obligations, and any part
of such funds which the Administrative Agent elects not so to apply and deems
not required as collateral security for the Secured Obligations shall be paid
over from time to time by the Administrative Agent to the Credit Parties or to
whomsoever may be lawfully entitled to receive the same. Any balance of such
Proceeds remaining after the Secured Obligations shall have been satisfied in
full and the Commitments shall have been terminated shall be paid over to the
Credit Parties or to whomsoever may be lawfully entitled to receive the same.

     7.4  Code Remedies.  At any time after an Event of Default shall have
          -------------
occurred, the Administrative Agent, on behalf of the Lenders, may exercise, in
addition to all other rights and remedies granted in this Agreement and in any
other instrument or agreement securing, evidencing or relating to the Secured
Obligations, all rights and remedies of a secured party under the Uniform
Commercial Code. Without limiting the generality of the foregoing, the
Administrative Agent, without demand of performance or other demand,
presentment, protest, advertisement or notice of any kind (except any notice
required by law referred to below) to or upon the Credit Parties or any other
Person (all and each of which demands, defenses, advertisements and notices are
hereby waived), may in such circumstances forthwith collect, receive,
appropriate and realize upon the Collateral, or any part thereof, and/or may
forthwith sell, lease, assign, give option or options to purchase, or otherwise
dispose of and deliver the Collateral or any part thereof (or contract to do any
of the foregoing), in one or more parcels at public or private sale or sales, at
any exchange, broker's board or office of the Administrative Agent or any Lender
or elsewhere upon such terms and conditions as it may deem advisable and at such
prices as it may deem best, for cash or on credit or for future delivery without
assumption of any credit risk. The Administrative Agent or any Lender shall have
the right upon any such public sale or sales, and, to the extent permitted by
law, upon any such private sale or sales, to purchase the whole or any part of
the Collateral so sold, free of any right or equity of redemption in a Credit
Party, which right or equity is hereby waived and released. The Credit Parties
further agree, at the Administrative Agent's request, to assemble the Collateral
and make it available to the Administrative Agent at places which the
Administrative Agent shall reasonably select, whether at the respective Credit
Party's premises or elsewhere. The Administrative Agent shall apply the net
proceeds of any such collection, recovery, receipt, appropriation, realization
or sale, after deducting all reasonable costs and expenses of every kind
incurred therein or incidental to the care or safekeeping of any of the
Collateral or in any way relating to the Collateral or the rights of the
Administrative Agent and the Lenders hereunder, including, without limitation,
reasonable attorneys' fees and disbursements, to the payment in whole or in part
of the Secured Obligations, in the order set forth in the Credit Agreement, and
only after such application and after the payment by the Administrative Agent of
any other amount required by any provision of law, including, without
limitation, Section 9-504(1)(c) of the Uniform Commercial Code, need the
Administrative Agent account for the surplus, if any, to each of the Credit
Parties. To the extent permitted by applicable law, each Credit Party waives all
claims, damages and demands it may acquire against the Administrative Agent or
any Lender arising out of the exercise by them of any rights hereunder. If any
notice of a proposed sale or other disposition of Collateral shall be required
by law, such notice shall be deemed reasonable and proper if received by the
Credit Parties at least 20 days before such sale or other disposition.

     7.5  Deficiency.  The Credit Parties shall remain liable for any
          ----------
deficiency if the proceeds of any sale or other disposition of the Collateral
are insufficient to pay the Secured Obligations and the fees and disbursements
of any attorneys employed by the Administrative Agent or any Lender to collect
such deficiency.

     8.   Administrative Agent's Appointment as Attorney-in-Fact; Administrative
          -------------------------------------------------------
Agent's Performance of Credit Parties' Obligations.
---------------------------------------------------

     8.1  Powers.  Each Credit Party hereby irrevocably constitutes and
          ------
appoints the Administrative Agent and any officer or agent of the Administrative
Agent, with full power of substitution, as its true and lawful attorney-in-fact
with fully irrevocable power and authority in the place and stead of such Credit
Party and in the name of such Credit Party or in the name of the Administrative
Agent, from time to time in the Administrative Agent's discretion, for the
purpose of carrying out the terms of this Agreement, to take any and all
appropriate action and to execute any and all documents and instruments which
may be necessary or desirable to secure the Secured Obligations and grant
security interests in the Collateral as contemplated by this Agreement, and,
without limiting

                                       12
<PAGE>

the generality of the foregoing, each Credit Party hereby gives the
Administrative Agent the power and right, on behalf of such Credit Party,
without notice to or assent by such Credit Party, to do the following:

          (a)  in the case of any Account, at any time when the authority of
     such Credit Party to collect the Accounts has been curtailed or terminated
     pursuant to Section 3.3(a) hereof, or in the case of any other Collateral,
     at any time after an Event of Default has occurred, in the name of such
     Credit Party or in the name of the Administrative Agent, or otherwise, to
     take possession of and indorse and collect any checks, drafts, notes,
     acceptances or other instruments for the payment of moneys due under any
     Account, Instrument or General Intangible or with respect to any other
     Collateral and to file any claim or to take any other action or proceeding
     in any court of law or equity or otherwise deemed appropriate by the
     Administrative Agent for the purpose of collecting any and all such moneys
     due under any Account, Instrument or General Intangible or with respect to
     any other Collateral whenever payable;

          (b)  in the case of any Copyrights, Patents or Trademarks, at any time
     after an Event of Default has occurred, to execute and deliver any and all
     agreements, instruments, documents, and papers as the Administrative Agent
     may request to evidence the Administrative Agent's and the Lenders'
     security interest in any Copyright, Patent or Trademark and the goodwill
     and general intangibles of such Credit Party relating thereto or
     represented thereby;

          (c)  at any time after an Event of Default has occurred, to pay or
     discharge taxes and Liens levied or placed on or threatened against the
     Collateral, to effect, any repairs or any insurance called for by the terms
     all or any part of the premiums therefor and the costs thereof;

          (d)  to execute, in connection with the sale provided for in Section
     7.4 hereof, any endorsements, assignments or other instruments of
     conveyance or transfer with respect to the Collateral; and

          (e)  at any time after an Event of Default has occurred, (i) to direct
     any party liable for any payment under any of the Collateral to make
     payment of any and all moneys due or to become due thereunder directly to
     the Administrative Agent or as the Administrative Agent shall direct; (ii)
     to ask or demand for, collect, receive payment of and receipt for, any and
     all moneys, claims and other amounts due or to become due at any time in
     respect of or arising out of any Collateral; (iii) to sign and indorse any
     invoices, freight or express bills, bills of lading, storage or warehouse
     receipts, drafts against debtors, assignments, verifications, notices and
     other documents in connection with any of the Collateral; (iv) to commence
     and prosecute any suits, actions or proceedings at law or in equity in any
     court of competent jurisdiction to collect the Collateral or any thereof
     and to enforce any other right in respect of any Collateral; (v) to defend
     any suit, action or proceeding brought against the Credit Party with
     respect to any Collateral; (vi) to settle, compromise or adjust any such
     suit, action or proceeding and, in connection therewith, to give such
     discharges or releases as the Administrative Agent may deem appropriate;
     (vii) to assign or grant licenses, any Copyright, Patent or Trademark
     (along with the goodwill of the business to which any such Copyright,
     Patent or Trademark pertains), throughout the world for such term or terms,
     on such conditions, and in such manner, as the Administrative Agent shall
     in its sole discretion determine; and (viii) generally, to sell, transfer,
     pledge and make any agreement with respect to or otherwise deal with any of
     the Collateral as fully and completely as though the Administrative Agent
     were the absolute owner thereof for all purposes, and to do, at the
     Administrative Agent's option and such Credit Party's expense, at any time,
     or from time to time, all reasonable acts and things which the
     Administrative Agent deems necessary to protect, preserve or realize upon
     the Collateral and the Administrative Agent's and the Lenders' security
     interests therein and to effect the intent of this Agreement, all as fully
     and effectively as such Credit Party might do.

The Administrative Agent agrees that, except after the occurrence of an Event of
Default, it will forbear from exercising the power of attorney or any rights
granted to the Administrative Agent pursuant to this Section 8.1.

     8.2  Performance by Administrative Agent of Credit Parties' Obligations. If
          -------------------------------------------------------------------
the Credit Parties fail to perform or comply with any of their agreements
contained herein, the Administrative Agent, at its option, but

                                       13
<PAGE>

without any obligation to do so, may perform or comply, or otherwise cause
performance or compliance, with such agreement.

     8.3  Credit Parties' Reimbursement Obligation.  The expenses of the
          ----------------------------------------
Administrative Agent incurred in connection with actions undertaken as provided
in this Section 8, together with interest thereon at the post-default rate per
annum set forth in the Credit Agreement for Base Rate Loans from the date of
payment by the Administrative Agent to the date reimbursed by the Credit
Parties, shall be payable by the Credit Parties to the Administrative Agent on
demand.

     8.4  Ratification; Power Coupled With An Interest.  The Credit Parties
          --------------------------------------------
hereby ratify all that said attorneys shall lawfully do or cause to be done by
virtue hereof. All powers, authorizations and agencies contained in this
Agreement are coupled with an interest and are irrevocable until the Secured
Obligations have been satisfied in full and the Commitments have been
terminated.

     9.  Duty of Administrative Agent.  The Administrative Agent's sole
         ----------------------------
duty with respect to the custody, safekeeping and physical preservation of the
Collateral in its possession, under Section 9-207 of the Uniform Commercial Code
or otherwise, shall be to deal with it in the same manner as the Administrative
Agent deals with similar property for its own account, except that the
Administrative Agent shall have no obligation to invest funds held in any
Collateral Account and may hold the same as demand deposits. Neither the
Administrative Agent, any Lender nor any of their respective directors,
officers, employees or agents shall be liable for failure to demand, collect or
realize upon any of the Collateral or for any delay in doing so or shall be
under any obligation to sell or otherwise dispose of any Collateral upon the
request of any Credit Party or any other Person or to take any other action
whatsoever with regard to the Collateral or any part thereof. The powers
conferred on the Administrative Agent and the Lenders hereunder are solely to
protect the Administrative Agent's and the Lenders' interests in the Collateral
and shall not impose any duty upon the Administrative Agent or any Lender to
exercise any such powers. The Administrative Agent and the Lenders shall be
accountable only for amounts that they actually receive as a result of the
exercise of such powers, and neither they nor any of their officers, directors,
employees or agents shall be responsible to the Credit Parties for any act or
failure to act hereunder, except for their own gross negligence or willful
misconduct.

     10.  Execution of Financing Statements.  Pursuant to Section 9-402 of
          ---------------------------------
the Uniform Commercial Code, each Credit Party authorizes the Administrative
Agent to file financing statements with respect to the Collateral without the
signature of such Credit Party in such form and in such filing offices as the
Administrative Agent reasonably determines appropriate to perfect the security
interests of the Administrative Agent and the Lenders under this Agreement. A
carbon, photographic or other reproduction of this Agreement shall be sufficient
as a financing statement for filing in any jurisdiction.

     11.  Authority of Administrative Agent. Each Credit Party acknowledges that
          ---------------------------------
the rights and responsibilities of the Administrative Agent under this Agreement
with respect to any action taken by the Administrative Agent or the exercise or
non-exercise by the Administrative Agent of any option, voting right request,
judgment or other right or remedy provided for herein or resulting or arising
out of this Agreement shall, as between the Administrative Agent and the
Lenders, be governed by the Credit Agreement and the TROL Transaction Documents,
and by such other agreements with respect thereto as may exist from time to time
among them, but, as between the Administrative Agent and such Credit Party, the
Administrative Agent shall be conclusively presumed to be acting as agent for
the Lenders with full and valid authority so to act or refrain from acting, and
such Credit Party shall be under no obligation, or entitlement, to make any
inquiry respecting such authority.

     12.  Notices.  All notices shall be given or made in accordance with
          -------
Section 11.1 of the Credit Agreement.

     13.  Severability. Any provision of this Agreement which is prohibited or
          ------------
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

                                       14
<PAGE>

     14.   Amendments in Writing; No Waiver; Cumulative Remedies.
           -----------------------------------------------------

     14.1  Amendments in Writing. None of the terms or provisions of this
           ---------------------
Agreement may be waived, amended, supplemented or otherwise modified except by a
written instrument executed by the Administrative Agent and the Credit Parties
directly affected thereby; provided that any provision of this Agreement may be
                           --------
waived by the Administrative Agent and the Lenders in a letter or agreement
executed by the Administrative Agent or by facsimile transmission from the
Administrative Agent.

     14.2  No Waiver by Course of Conduct.  Neither the Administrative
           ------------------------------
Agent nor any Lender shall by any act (except by a written instrument pursuant
to Section 14.1 hereof), delay, indulgence, omission or otherwise be deemed to
have waived any right or remedy hereunder or to have acquiesced in any Default
or Event of Default or in any breach of any of the terms and conditions hereof.
No failure to exercise, nor any delay in exercising, on the part of the
Administrative Agent or any Lender, any right, power or privilege hereunder
shall operate as a waiver thereof.  No single or partial exercise of any right,
power or privilege hereunder shall preclude any other or further exercise
thereof or the exercise of any other right, power or privilege.  A waiver by the
Administrative Agent or any Lender of any right or remedy hereunder on any one
occasion shall not be construed as a bar to any right or remedy which the
Administrative Agent or such Lender would otherwise have on any future occasion.

     14.3  Remedies Cumulative. The rights and remedies herein provided are
           -------------------
cumulative, may be exercised singly or concurrently and are not exclusive of any
other rights or remedies provided by law.

     15.   Section Headings.  The section and subsection headings used in
           ----------------
this Agreement are for convenience of reference only and are not to affect the
construction hereof or be taken into consideration in the interpretation hereof.

     16.  Successors and Assigns.  This Agreement shall be binding upon the
          ----------------------
successors and assigns of the Credit Parties and shall inure to the benefit of
the Administrative Agent and the Lenders and their successors and assigns,
provided that the Credit Parties may not assign any of their rights or
--------
obligations under this Agreement without the prior written consent of the
Administrative Agent and any such purported assignment without such prior
written consent shall be null and void.

     17.  Term of Agreement.  This Agreement and the security interests
          -----------------
granted hereunder shall remain in full force and effect until the Secured
Obligations have been satisfied in full and the Commitments have been
terminated, at which time the Administrative Agent shall release and terminate
the security interests granted to it hereunder. Upon such release and
termination, (i) the Credit Parties shall be entitled to the return, at the
Credit Parties' expense, of any and all funds in the Collateral Account and such
of the Collateral held by the Administrative Agent as shall not have been sold
or otherwise applied pursuant to the terms hereof and (ii) the Administrative
Agent will, at the Credit Parties' expense, execute and deliver to the Credit
Parties such UCC termination statements and other documents as the Credit
Parties shall reasonably request to evidence such release and termination.

     18.  GOVERNING LAW.  THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF
          -------------
THE PARTIES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF GEORGIA.


                  [Remainder of Page Intentionally Left Blank]

                                       15
<PAGE>

     IN WITNESS WHEREOF, the undersigned have caused this Security Agreement to
be duly executed and delivered as of the date first above written.

CREDIT PARTIES:

CENTENNIAL HEALTHCARE             TRANSITIONAL FINANCIAL SERVICES, INC.
 CORPORATION                      PARAGON REHABILITATION, INC.
CENTENNIAL/ASHTON PROPERTIES      THS PARTNERS I, INC.
 CORPORATION                      THS PARTNERS II, INC.
CENTENNIAL HEALTHCARE             TRANSITIONAL HEALTH PARTNERS
 PROPERTIES CORPORATION           BY:  THS PARTNERS I, INC. and THS
CENTENNIAL HEALTHCARE             PARTNERS II, INC., its general partners
 MANAGEMENT CORPORATION           PARKVIEW PARTNERSHIP
CENTENNIAL ACQUISITION            BY:  THS PARTNERS I, INC. and THS
 CORPORATION                           PARTNERS II, INC., its general partners
CENTENNIAL PROFESSIONAL           TOTAL CARE CONSOLIDATED, INC.
 THERAPY SERVICES CORPORATION     TOTAL CARE, INC.
CENTENNIAL HEALTHCARE             TOTAL HEALTH CARE SERVICES, INC.
 INVESTMENT CORPORATION           TOTAL CARE OF THE CAROLINAS, INC.
CENTENNIAL HEALTHCARE HOSPITAL          HCC HOME HEALTH OF LOUISIANA, INC.
 CORPORATION
TRANSITIONAL HEALTH SERVICES, INC.

Attest:


By:/s/  Daryl R. Griswold                       By:/s/  Alan Dahl
          Name:   Daryl R. Griswold             Name: Alan Dahl
          Title:  Asst. Secretary               Title: EVP


ADMINISTRATIVE                                  FIRST UNION NATIONAL BANK,
AGENT:                                          for itself and as Agent

                                                By:  /s/ J. Matt MacIver, Jr.
                                                Name:J. Matt MacIver, Jr.
                                                Title:V.P.


ADMINISTRATIVE
AGENT:                                          FIRST UNION NATIONAL BANK,
                                                as Administrative Agent

                                                By:  /s/ J. Matt McIver, Jr.
                                                Name:J. Matt McIver, Jr.
                                                Title:V.P.


<PAGE>

                                  Schedule 1
                                  ----------
              CChief Executive Office and Locations of Collateral

                               Schedule Omitted
<PAGE>

                                  Schedule 2
                                  ----------

           Filings and Actions required to Perfect Security Interests

                               Schedule Omitted
<PAGE>

                                  Schedule 3
                                  ----------

                       Copyrights and Copyright Licenses

                               Schedule Omitted
<PAGE>

                                  Schedule 4
                                  ----------

                          Patents and Patent Licenses

                               Schedule Omitted
<PAGE>

                                  Schedule 5
                                  ----------

                       Trademarks and Trademark Licenses

                               Schedule Omitted
<PAGE>

                                  Schedule 6
                                  ----------

                    Contracts with Governmental Authorities

                               Schedule Omitted