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                                                                    EXHIBIT 10.6

                       ASSIGNMENT OF MANAGEMENT AGREEMENT

      THIS ASSIGNMENT OF MANAGEMENT AGREEMENT (this "ASSIGNMENT") is made and
entered into as of April 1, 2002 by and among (i) DOH, INC. (the "GUARANTOR"), a
Maryland corporation (ii) REILLY MORTGAGE CAPITAL CORPORATION (the "LENDER"), a
Virginia corporation, and (iii) BRI OP LIMITED PARTNERSHIP (the "MANAGER"), a
Delaware limited partnership.

                                    RECITALS:

     A.       Guarantor is the owner of a multifamily residential apartment
project located in Columbia (Howard County), Maryland (the "MORTGAGED
PROPERTY").

     B.       Manager is the managing agent of the Mortgaged Property pursuant
to a Management Agreement dated as of April 27, 2000, between Guarantor and
Manager (the "MANAGEMENT AGREEMENT").

     C.       Lender is about to make a loan to KRF3 Acquisition Company,
L.L.C., a Delaware limited liability company ("BORROWER") in the amount of
$16,145,000.00 (the "LOAN"). The Loan will be evidenced by a Multifamily Note
and will be guaranteed by Guarantor pursuant to a Guaranty, which will be
secured by an Indemnity Multifamily Deed of Trust, Assignment of Rents and
Security Agreement (the "SECURITY INSTRUMENT") which encumbers the Mortgaged
Property.

     D.       Guarantor  is  willing  to  assign  its  rights  under  the
Management  Agreement  to  Lender as additional security for the Loan.

     E.       Manager is willing to consent to this Assignment and to attorn to
Lender upon a default by Borrower or Guarantor under the documents evidencing
and relating to the Loan, and perform its obligations under the Management
Agreement for Lender, or its successors in interest, or to permit Lender to
terminate the Management Agreement without liability.

     NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, and intending to be legally bound,
Guarantor, Lender and Manager agree as follows:

     1.       Guarantor hereby transfers, assigns and sets over to Lender, its
successors and assigns, all right, title and interest of Guarantor in and to the
Management Agreement. Manager hereby consents to the foregoing assignment. The
foregoing assignment is being made by Guarantor to Lender as collateral security
for the full payment and performance by Guarantor of all of its obligations
under the loan documents relating to the Loan to which Guarantor is a party.
However, until the occurrence of an Event of Default (as such term is defined in
the loan documents evidencing and securing the Loan) Guarantor may exercise all
rights as owner of the Mortgaged Property under the Management Agreement, except
as otherwise provided in this Assignment. The foregoing assignment shall remain
in effect as long as the Loan, or any part thereof,

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remains unpaid, but shall automatically terminate upon the release of the
Security Instrument as a lien on the Mortgaged Property.

     2.       Guarantor and Manager represent and warrant to Lender that (i) the
Management Agreement is unmodified and is in full force and effect, (ii) the
Management Agreement is a valid and binding agreement enforceable against the
parties in accordance with its terms, and (iii) neither party is in default in
performing any of its obligations under the Management Agreement.

     3.       Guarantor hereby covenants with Lender that during the term of
this Assignment: (a) Guarantor shall not transfer the responsibility for
management of the Mortgaged Property from Manager to any other person or entity
without the prior written consent of Lender; (b) Guarantor shall not terminate
or amend any of the terms or provisions of the Management Agreement without
the prior written consent of Lender; and (c) Guarantor shall give Lender
written notice of any notice or information that Guarantor receives which
indicates that Manager is terminating the Management Agreement or that
Manager is otherwise discontinuing its management of the Mortgaged
Property.

     4.       Upon receipt by Manager of written notice from Lender that an
Event of Default as that term is defined in the loan documents evidencing and
securing the Loan) has occurred and is continuing, Lender shall have the right
to exercise all rights as owner of the Mortgaged Property under the Management
Agreement.

     5.       After the occurrence of an Event of Default, Lender (or its
 nominee) shall have the right any time thereafter to terminate the Management
Agreement, without cause and without liability, by giving written notice to
Manager of its election to do so. Lender's notice shall specify the date of
termination, which shall not be less than 30 days after the date of such notice.

     6.       On the effective date of termination of the Management Agreement,
Manager shall turn over to Lender all books and records relating to the
Mortgaged Property (copies of which may be retained by Manager, at Manager's
expense), together with such authorizations and letters of direction addressed
to tenants, suppliers, employees, banks and other parties as Lender may
reasonably require: Manager shall cooperate with Lender in the transfer of
management responsibilities to Lender or its designee. A final accounting of
unpaid fees (if any) due to Manager under the Management Agreement shall be made
within 60 days after the effective date of termination, but Lender shall not
have any liability or obligation to Manager for unpaid fees or other amounts
payable under the Management Agreement which accrue before Lender (or its
nominee) acquires title to the Mortgaged Property, or Lender becomes a mortgagee
in possession.

     7.       Manager's address for notice is c/o Berkshire Realty Group, One
Beacon Street, Boston, Massachusetts 02108. All notices to be given by Lender to
Manager shall be given in the same manner as notices to Guarantor pursuant to
the notice provisions contained in the Security Instrument.

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                                                                               3

     8.       Modifications (if any) to this Assignment are attached on Exhibit
 A to this Assignment.

     9.       This Assignment may be executed in any number of counterparts,
each of which shall be considered an original for all purposes; provided,
however, that all such counterparts shall constitute one and the same
instrument.

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                                                                               4

     IN WITNESS WHEREOF, Guarantor, Lender and Manager have executed this
Assignment as of the day and year first above written.

                                             GUARANTOR:

                                             DOH, INC., a Maryland corporation

                                              By: /s/ David Quade
                                                  -----------------------------
                                                  David Quade
                                                  Vice President

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                                             LENDER:

                                             REILLY MORTGAGE CAPITAL
                                             CORPORATION, a Virginia corporation


                                             By: /s/ Mark E. Gordon
                                                 -------------------------------
                                                 Mark E. Gordon
                                                 Assistant Vice President

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                                                                              6

                                             MANAGER:

                                             BRI OP LIMITED PARTNERSHIP, a
                                               Delaware limited partnership

                                             By: Berkshire Apartments, L.L.C.,
                                                 General Partner


                                             By: /s/ David Quade
                                                 ------------------------------
                                                 Name:
                                                 Title:

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                                    EXHIBIT A
               MODIFICATIONS TO ASSIGNMENT OF MANAGEMENT AGREEMENT

The following modifications are made to the text of the Assignment that precedes
this Exhibit:

The Assignment is modified by adding a new Section 10 and a new Section 11 as
follows:

      "10.    Manager agrees that:

                   (a)     (i) any fees payable to Manager pursuant to the
              Management Agreement are and shall be subordinated in right of
              payment, to the extent and in the manner provided in this
              Assignment, to the prior payment in full of the Indebtedness (as
              defined in the Security Instrument), and (ii) the Management
              Agreement is and shall be subject and subordinate in all respects
              to the liens, terms, covenants and conditions of the Security
              Instrument and the other loan documents evidencing and securing
              the Loan and to all advances heretofore made or which may
              hereafter be made pursuant to the Security Instrument (including
              all sums advanced for the purposes of (x) protecting or further
              securing the lien of the Security Instrument, curing defaults by
              Guarantor under the Security Instrument or for any other purposes
              expressly permitted by the Security Instrument, or (y)
              constructing, renovating, repairing, furnishing, fixturing or
              equipping the Mortgaged Property);

                   (b)     if, by reason of its exercise of any other right or
              remedy under the Management Agreement, Manager acquires by right
              of subrogation or otherwise a lien on the Mortgaged Property which
              (but for this subsection) would be senior to the lien of the
              Security Instrument, then, in that event, such lien shall be
              subject and subordinate to the lien of the Security Instrument;

                   (c)     until Manager receives notice (or otherwise acquires
              actual knowledge) of an Event of Default, Manager shall be
              entitled to retain for its own account all payments made under or
              pursuant to the Management Agreement;

                   (d)     after Manager receives notice (or otherwise acquires
              actual knowledge) of an Event of Default, it will not accept any
              payment of fees under or pursuant to the Management Agreement
              without Lender's prior written consent;

                   (e)     if, after Manager receives notice (or otherwise
              acquires actual knowledge) of an Event of Default, Manager
              receives any payment of fees under the Management Agreement, or if
              Manager receives any other payment or distribution of any kind
              from Guarantor or from any

                                       A-1
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              other person or entity in connection with the Management Agreement
              which Manager is not permitted by this Assignment to retain for
              its own account, such payment or other distribution will be
              received and held in trust for Lender and unless Lender otherwise
              notifies Manager, will be promptly remitted, in cash or readily
              available funds, to Lender, properly endorsed to Lender, to be
              applied to the principal of, interest on and other amounts due
              under the loan documents evidencing and securing the Loan in such
              order and in such manner as Lender shall determine in its sole and
              absolute discretion. Manager hereby irrevocably designates, makes,
              constitutes and appoints Lender (and all persons or entities
              designated by Lender) as Manager's true and lawful attorney in
              fact with power to endorse the name of Manager upon any checks
              representing payments referred to in this subsection;

                   (f)     Manager shall notify (telephonically, followed by
              written notice) Lender of Manager's receipt from any person or
              entity other than Guarantor or Borrower of a payment with respect
              to Guarantor's and Borrower's obligations under the loan documents
              evidencing and securing the Loan, promptly after Manager obtains
              knowledge of such payment; and

                   (g)     during the term of this Assignment Manager will not
              commence, or join with any other creditor in commencing any
              bankruptcy, reorganization, arrangement, insolvency or liquidation
              proceedings with respect to Guarantor, without Lender's prior
              written consent.

      11.     Guarantor agrees that after Guarantor receives notice (or
              otherwise has actual knowledge) of an Event of Default, it will
              not make any payment of fees under or pursuant to the Management
              Agreement without Lender's prior written consent."


                                                 /s/ DCQ
                                                 -------------------------------
                                                 Guarantor Initials

                                                 /s/ MEG
                                                 -------------------------------
                                                 Lender Initials

                                                 /s/ DCQ
                                                 -------------------------------
                                                 Manager Initials

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