SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                 SCHEDULE 13E-3

                        Rule 13e-3 Transaction Statement
       (Pursuant to Section 13(e) of the Securities Exchange Act of 1934)

                        McNeil Real Estate Fund XXIII, L.P.
                    ---------------------------------------
                                (Name of Issuer)

                        McNeil Real Estate Fund XXIII, L.P.
                             McNeil Partners, L.P.
                             McNeil Investors, Inc.
                                Robert A. McNeil
                             WXI/McN Realty L.L.C.
                          WXI/MNL Real Estate, L.L.C.
              Whitehall Street Real Estate Limited Partnership XI
                    ---------------------------------------
                      (Name of Person(s) Filing Statement)

                     Units of Limited Partnership Interest
                    ---------------------------------------
                         (Title of Class of Securities)

                                      N/A
                    ---------------------------------------
                     (CUSIP Number of Class of Securities)

                                 Ron K. Taylor
                                   President
                            McNeil Investors, Inc.
                           13760 Noel Road, Suite 600
                              Dallas, Texas 75240
                                 (972) 448-5800
                    ---------------------------------------
           (Name, Address and Telephone Number of Persons Authorized
 to Receive Notices and Communications on Behalf of Person(s) Filing Statement)

                                with a copy to:

Martha E. McGarry, Esq.    Gary Israel, Esq.         W. Scott Wallace, Esq.
Skadden, Arps, Slate,      Sullivan & Cromwell       Haynes & Boone, LLP
Meagher & Flom LLP         125 Broad Street          901 Main Street, Suite 3100
919 Third Avenue           New York, New York 10004  Dallas, Texas 75202
New York, New York 10022   (212) 558-4000            (214) 651-5000
(212) 735-3000

     This statement is filed in connection with (check the appropriate box):

(a)  [X]  The filing of solicitation materials or an information statement
          subject to Regulation 14A, Regulation 14C or Rule 13e-3(c) under the
          Securities Exchange Act of 1934.

(b)  [ ]  The filing of a registration statement under the Securities Act of
          1933.

(c)  [ ]  A tender offer.

(d)  [ ]  None of the above.


     Check the following box if the soliciting materials or information
statement referred to in checking box (a) are preliminary copies: [X]


                           Calculation of Filing Fee
- -------------------------------------------------------------------------------
              Transaction                               Amount of
               valuation*                               Filing Fee**
- -------------------------------------------------------------------------------

         $ 1,748,302                                   $ 349.66

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

*    For purposes of calculating the filing fee only. This calculation assumes
     the exchange of 6,574,985 current income units of limited partner interest
     in the Issuer at $0.26 per unit in cash and 4,850,711 growth/shelter units
     of limited partner interest in the Issuer at $0.008 per unit in cash.
**   The amount of the filing fee, calculated in accordance with Rule 0-11(c) of
     the Securities Exchange Act of 1934, as amended, equals 1/50th of one
     percent of the aggregate value of cash exchanged for such units.


[X]  Check box if any part of the fee is offset by Rule 0-11(a)(2) and identify
     the filing with which the offsetting fee was previously paid.  Identify the
     previous filing by registration statement number, or the Form or Schedule
     and the date of its filing.

(1)  Amount Previously Paid:  $ 341.90         Filing Party: McNeil Real Estate
                                               Fund XXIII, L.P.

     Form or Registration No.: Schedule 14A    Date Filed: August 3, 1999

(2)  Amount Previously Paid:  $ 7.76           Filing Party: McNeil Real Estate
                                               Fund XXIII, L.P.

     Form or Registration No.: Schedule 14A    Date Filed: December 14, 1999



                                  INTRODUCTION

     This Rule 13e-3 Transaction Statement on Schedule 13E-3 (this "Amended and
Restated Transaction Statement") is being jointly filed by (1) McNeil Real
Estate Fund XXIII, L.P. a California limited partnership (the "Partnership"),
(2) McNeil Partners, L.P., a Delaware limited partnership and the general
partner of the Partnership (the "General Partner"), (3) McNeil Investors, Inc.,
a Delaware corporation and the general partner of the General Partner ("McNeil
Investors"), (4) Robert A. McNeil, the sole stockholder of McNeil Investors, (5)
WXI/McN Realty L.L.C., a Delaware limited liability company (the "Purchaser"),
(6) WXI/MNL Real Estate, L.L.C., a Delaware limited liability company and the
managing member of the Purchaser ("WXI/MNL Real Estate"), and (7) Whitehall
Street Real Estate Limited Partnership XI, a Delaware limited partnership and
the managing member of WXI/MNL Real Estate ("Whitehall" and, collectively with
the Partnership, the General Partner, McNeil Investors, Robert A. McNeil,
WXI/McN Realty and WXI/MNL Real Estate, the "Filing Persons"), pursuant to
Section 13(e) of the Securities Exchange Act of 1934, as amended (the
"Securities Exchange Act"), and Rule 13e-3 thereunder ("Rule 13e-3"), to amend
and restate Amendment No. 3 to the Preliminary Rule 13e-3 Transaction Statement
on Schedule 13E-3 (File No. 5-56615) jointly filed by the Filing Persons with
the Securities and Exchange Commission on November 10, 1999.

    The Partnership has entered into a Master Agreement, dated as of June 24,
1999, as amended as of December 2, 1999 and December 10, 1999 (as amended, the
"Master Agreement"), by and among the Purchaser, the General Partner, McNeil
Investors, McNeil Real Estate Management, Inc., McNeil Summerhill, Inc. and
eighteen other limited partnerships for which the General Partner or an
affiliate of the General Partner serves as the general partner. The Master
Agreement provides, among other things, that (1) the General Partner will
contribute all of its general partner interests in the Partnership to a newly
formed limited liability company directly or indirectly wholly owned by the
Purchaser and this subsidiary will be appointed as the new general partner of
the Partnership and (2) a separate newly formed limited partnership directly or
indirectly wholly owned by the Purchaser will merge with and into the
Partnership with the Partnership continuing as the surviving limited
partnership, and each limited partner of the Partnership (other than limited
partners who validly exercise dissenters' rights in connection with the merger)
will receive cash merger consideration of approximately $0.26 for each current
income unit and $0.008 for each growth/shelter unit held by that limited partner
in the Partnership, together with that limited partner's allocable share, if
any, of a special distribution in cash if the Partnership participates in the
transaction and has a positive net working capital balance calculated in
accordance with the terms of the Master Agreement on the closing date of the
transaction, all as more fully described in the Proxy Statement (as defined
below). A copy of the Master Agreement is included as Appendix A to the
Definitive Proxy Statement on Schedule 14A of the Partnership filed by the
Partnership today with the Securities and Exchange Commission (the "Proxy
Statement"). The Proxy Statement also has been filed as Exhibit (d)(1) to this
Amended and Restated Transaction Statement.

     By filing this Amended and Restated Transaction Statement, none of the
Filing Persons concedes that Rule 13e-3 is applicable to the merger or the other
transactions contemplated by the Master Agreement. In addition, under a
potential interpretation of the Securities Exchange Act and Rule 13e-3, one or
more of Whitehall, WXI/MNL Real Estate and the Purchaser may be deemed to be an
affiliate of the Partnership. Therefore, each of Whitehall, WXI/MNL Real Estate
and the Purchaser has been included as a filing person on this Amended and
Restated Transaction Statement.

     The cross-reference sheet below is being supplied pursuant to General
Instruction F to Schedule 13E-3 and shows the location in the Proxy Statement of
the information required to be included in response to the items of this Amended
and Restated Transaction Statement. The information in the Proxy Statement,
including all exhibits and appendices thereto, is hereby expressly incorporated
herein by reference, and the responses to each item of this Amended and Restated
Transaction Statement are qualified in their entirety by reference to the
information contained in the Proxy Statement and such exhibits and
appendices.

                                       1


                             CROSS-REFERENCE SHEET

      Item in Schedule 13E-3        Location in Proxy Statement
      ----------------------        ---------------------------

Item 1(a).......................  Cover page, Summary -- Parties to the
                                  transaction

Item 1(b).......................  Cover page, Summary -- Record date;
                                  voting power, The Meeting -- Record
                                  date; voting power, Related Security Holder
                                  Matters -- Additional information concerning
                                  limited partner units

Item 1(c)-(d)...................  Related Security Holder Matters --
                                  Additional information concerning
                                  limited partner units


Item 1(e).......................  Not applicable

Item 1(f).......................  Related Security Holder Matters -- Recent
                                  transactions in the Partnership's limited
                                  partner units

Item 2(a)-(g)...................  Cover page, Summary -- Parties to the
                                  transaction, Controlling Persons,
                                  Directors and Executive Officers of
                                  McNeil Partners, McNeil Investors,
                                  WXI/MNL Real Estate, L.L.C., WH
                                  Advisors, L.L.C. XI and The Goldman
                                  Sachs Group, Inc.

Item 3(a)-(b)...................  Summary -- Structure of the transaction,
                                  Summary -- Effects of the transaction, Special
                                  Factors -- Effects of the transaction,
                                  Summary -- Allocation of the aggregate
                                  consideration in the transaction, Special
                                  Factors -- Opinions and reports of financial
                                  advisors -- Allocation analysis and opinions
                                  of Stanger & Co. -- Stanger & Co. allocation
                                  analysis, Summary -- Determination of merger
                                  consideration for growth/shelter units in
                                  the Partnership, Special Factors --
                                  Determination of merger consideration for
                                  growth/shelter units in the Partnership,
                                  Special Factors -- Interests of
                                  certain persons in matters to be
                                  acted upon; conflicts of interest, Special
                                  Factors -- Background of the transaction,
                                  Special Factors -- Purposes and reasons for
                                  the transaction, Related Security Holder
                                  Matters -- Recent transactions in the
                                  Partnership's limited partner units, Related
                                  Security Holder Matters -- Past contacts,
                                  transactions and negotiations, Special
                                  Factors -- Events subsequent to the execution
                                  of the Master Agreement

Item 4(a).......................  Summary, Special Factors -- Recommendations of
                                  the special committee and the McNeil Investors
                                  board of directors; fairness of the
                                  transaction, Special Factors -- Interests of
                                  certain persons in matters to be acted upon;
                                  conflicts of interest, Special Factors --
                                  Purposes and reasons for the transaction,
                                  Special Factors -- Effects of the transaction,
                                  Special Factors -- Opinions and reports of
                                  financial advisors -- Allocation analysis and
                                  opinions of Stanger & Co. -- Stanger & Co.
                                  allocation analysis, Summary -- Determination
                                  of merger consideration for growth/shelter
                                  units in the Partnership, Special Factors --
                                  Determination of merger consideration for
                                  growth/shelter units in the Partnership,
                                  The Master Agreement, WXI/McN Realty Operating
                                  Agreement, Other Agreements Between the McNeil
                                  Affiliates and Affiliates of WXI/McN Realty,
                                  Special Factors -- Plans for the McNeil
                                  Partnerships that participate in the
                                  transaction

Item 4(b).......................  Summary -- Interests of certain persons in
                                  matters to be acted upon; conflicts of
                                  interest, Special Factors -- Interests of
                                  certain persons in matters to be acted upon;
                                  conflicts of interest, WXI/McN Realty
                                  Operating Agreement

Item 5(a)-(g)...................  Special Factors -- Financing; sources
                                  of funds, Special Factors -- Plans
                                  for the McNeil

                                       2



                                  Partnerships that participate in the
                                  transaction, Special Factors -- Effects of the
                                  transaction, Related Security Holder
                                  Matters -- Plans or proposals, Special
                                  Factors -- Interests of certain persons in
                                  matters to be acted upon; conflicts of
                                  interest, The Master Agreement, WXI/McN Realty
                                  Operating Agreement, Other Agreements Between
                                  the McNeil Affiliates and Affiliates of
                                  WXI/McN Realty, Summary -- Financing; sources
                                  of funds, Summary -- Interests of certain
                                  persons in matters to be acted upon; conflicts
                                  of interest, Summary -- Effects of the
                                  transaction, Summary -- Structure of the
                                  transaction

Item 6(a), (c)..................  Special Factors -- Financing; sources
                                  of funds, The Master Agreement -- Aggregate
                                  consideration, The Master Agreement --
                                  Material representations and warranties,
                                  Special Factors -- Effects of the transaction,
                                  Special Factors -- Interests of certain
                                  persons in matters to be acted upon; conflicts
                                  of interest -- Receipt of aggregate
                                  consideration by the McNeil Affiliates,
                                  Summary -- Structure of the transaction,
                                  Special Factors -- Opinions and reports of
                                  financial advisors -- Allocation analysis and
                                  opinions of Stanger & Co. -- Stanger & Co.
                                  allocation analysis, Summary -- Determination
                                  of merger consideration for growth/shelter
                                  units in the Partnership, Special Factors --
                                  Determination of merger consideration for
                                  growth/shelter units in the Partnership,
                                  Summary -- Effects of the transaction,
                                  Summary -- Allocation of the aggregate
                                  consideration in the transaction

Item 6(b).......................  Special Factors -- Expenses relating
                                  to the transaction, The Meeting --
                                  Solicitation of proxies, Special Factors --
                                  Opinions and reports of financial advisors
                                  -- Allocation analysis and opinions of
                                  Stanger & Co. -- Fee arrangements, Special
                                  Factors -- Opinions and reports of financial
                                  advisors -- Eastdil Realty Company opinions
                                  -- Fee arrangements, The Master Agreement --
                                  Fees and expenses

Item 6(d).......................  Not applicable

Item 7(a),(c)...................  Special Factors -- Purposes and reasons for
                                  the transaction, Special Factors --
                                  Recommendations of the special committee and
                                  the McNeil Investors board of directors;
                                  fairness of the transaction, Special Factors
                                  -- Background of the transaction, Special
                                  Factors -- Opinions and reports of financial
                                  advisors, Special Factors -- Alternatives to
                                  the transaction, Summary -- Purposes and
                                  reasons for the transaction, Summary --
                                  Recommendations of the special committee and
                                  the McNeil Investors board of directors,
                                  Summary -- Factors considered by the McNeil
                                  Investors board of directors and the special
                                  committee; fairness of the transaction,
                                  Summary -- Opinions and reports of financial
                                  advisors, Appendices C-1, C-2, D-1 and D-2

Item 7(b).......................  Special Factors -- Alternatives to the
                                  transaction

Item 7(d).......................  Summary -- Structure of the transaction,
                                  Summary -- Effects of the transaction,
                                  Summary -- Purposes and reasons for the
                                  transaction, Summary -- Interests of certain
                                  persons in matters to be acted upon; conflicts
                                  of interest, Summary -- Allocation of the
                                  aggregate consideration in the transaction,
                                  Summary -- Federal income tax consequences of
                                  the transaction, Summary -- Accounting
                                  treatment of transaction, Special Factors --
                                  Effects of the transaction, Special Factors
                                  -- Purposes and reasons for the transaction,
                                  Special Factors -- Opinions and reports of
                                  financial advisors -- Allocation analysis and
                                  opinions of Stanger & Co. -- Stanger & Co.
                                  allocation analysis, Summary -- Determination
                                  of merger consideration for growth/shelter
                                  units in the Partnership, Special Factors --
                                  Determination of merger consideration for
                                  growth/shelter units in the Partnership, The
                                  Master Agreement -- The mergers, The Master
                                  Agreement -- The contributions, The Master
                                  Agreement -- Aggregate consideration, The
                                  Master Agreement -- Fees and expenses, The
                                  Master Agreement -- Material covenants,
                                  Special Factors -- Anticipated accounting
                                  treatment, WXI/McN Realty Operating Agreement,
                                  Other Agreements Between the McNeil Affiliates
                                  and Affiliates of WXI/McN Realty, Special
                                  Factors -- Federal income tax consequences,
                                  Special Factors --Interests of certain persons
                                  in matters to be acted upon; conflicts of
                                  interest, Special Factors -- Plans for the
                                  McNeil Partnerships that participate in the
                                  transaction, Special Factors -- Plans for the
                                  McNeil Partnerships that do not participate in
                                  the transaction

Item 8(a)-(b), (d)-(f)..........  Special Factors -- Recommendations of
                                  the special committee and the McNeil Investors
                                  board of directors; fairness of the
                                  transaction, Summary -- Factors considered by
                                  the McNeil Investors board of directors and
                                  the special committee; fairness of the
                                  transaction, Summary -- Recommendations of the
                                  special committee and the McNeil Investors
                                  board of directors, Summary -- Position of
                                  McNeil Partners and Robert A. McNeil regarding
                                  the fairness of the transaction, Summary --
                                  Position of Whitehall, WXI/MNL Real Estate and
                                  WXI/McN Realty, Summary -- Opinions and
                                  reports of financial advisors, Special
                                  Factors --  Opinions and reports of financial
                                  advisors, Special Factors -- Position of
                                  McNeil Partners and Robert A. McNeil regarding
                                  the fairness of the transaction, Special
                                  Factors -- Position of Whitehall, WXI/MNL Real
                                  Estate and WXI/McN Realty, Special Factors --
                                  Alternatives to the transaction, Special
                                  Factors -- Background of the transaction,
                                  Special Factors -- Interests of certain
                                  persons in matters to be acted upon; conflicts
                                  of interest, Appendices C-1, C-2, D-1 and D-2

Item 8(c).......................  Cover page, Summary -- Quorum; vote required,
                                  The Meeting -- Vote required, Summary --
                                  Interests of certain persons in matters to be
                                  acted upon; conflicts of interest -- Ownership
                                  of limited partner units in the Partnership,
                                  The Meeting -- Ownership of limited partner
                                  units in the Partnership, Special Factors --
                                  Interests of certain persons in matters to be
                                  acted upon; conflicts of interest -- Ownership
                                  of limited partner units in the McNeil
                                  Partnerships by the McNeil Affiliates, Special
                                  Factors -- Recommendations of the special
                                  committee and the McNeil Investors board of
                                  directors; fairness of the transaction --
                                  Recommendations of the special committee,
                                  Summary -- Factors considered by the McNeil
                                  Investors board of directors and the special
                                  committee; fairness of the transaction

Item 9(a)-(b)...................  Special Factors -- Recommendations of the
                                  special committee and the McNeil Investors
                                  board of directors; fairness of the
                                  transaction, Special Factors -- Opinions and
                                  reports of financial advisors, Special Factors
                                  -- Background of the transaction, The Master
                                  Agreement -- Aggregate consideration --
                                  Allocation of the aggregate consideration,
                                  Summary -- Allocation of the aggregate
                                  consideration in the transaction, Summary --
                                  Opinions and reports of financial advisors,
                                  Summary --Recommendations of the special
                                  committee and the McNeil Investors board of
                                  directors, Summary -- Factors considered by
                                  the McNeil Investors board of directors and
                                  the special committee; fairness of the
                                  transaction, Appendices C-1, C-2, D-1 and
                                  D-2

Item 9(c).......................  Where You Can Find More Information,
                                  Appendices C-1, C-2, D-1 and D-2

Item 10(a)......................  Special Factors -- Interests of certain
                                  persons in matters to be acted upon; conflicts
                                  of interest -- Ownership of limited partner
                                  units


                                       3


                                   in the McNeil Partnerships by the
                                   McNeil Affiliates, Related Security
                                   Holder Matters -- Principal holders
                                   of limited partner units

Item 10(b).......................  Related Security Holder Matters -- Recent
                                   transactions in the Partnership's limited
                                   partner units


Item 11..........................  Summary -- Structure of the transaction,
                                   Summary -- Effects of the transaction,
                                   Special Factors -- Effects of the
                                   transaction, Summary -- Allocation of the
                                   aggregate consideration in the transaction,
                                   Special Factors -- Opinions and reports of
                                   financial advisors -- Allocation analysis and
                                   opinions of Stanger & Co. -- Stanger & Co.
                                   allocation analysis, Summary -- Determination
                                   of merger consideration for growth/shelter
                                   units in the Partnership, Special Factors --
                                   Determination of merger consideration for
                                   growth/shelter units in the Partnership,
                                   The Master Agreement, WXI/McN Realty
                                   Operating Agreement, Other Agreements Between
                                   the McNeil Affiliates and Affiliates of
                                   WXI/McN Realty, Related Security Holder
                                   Matters --Contracts, arrangements and
                                   understandings with respect to limited
                                   partner units in the Partnership, Summary --
                                   Quorum; vote required, Summary -- Interests
                                   of certain persons in matters to be acted
                                   upon; conflicts of interest -- Ownership of
                                   limited partner units in the Partnership, The
                                   Meeting --Ownership of limited partner units
                                   in the Partnership, Special Factors --
                                   Interests of certain persons in matters to be
                                   acted upon; conflicts of interest --Ownership
                                   of limited partner units in the McNeil
                                   Partnerships by the McNeil Affiliates,
                                   Special Factors --Events subsequent to the
                                   execution of the Master Agreement, Other
                                   Agreements With Respect to the Transaction


Item 12(a).......................  Summary -- Quorum; vote required, Summary --
                                   Interests of certain persons in matters to be
                                   acted upon; conflicts of interest --Ownership
                                   of limited partner units in the Partnership,
                                   The Meeting -- Ownership of limited partner
                                   units in the Partnership, Special Factors --
                                   Interests of certain persons in matters to be
                                   acted upon; conflicts of interest --Ownership
                                   of limited partner units in the McNeil
                                   Partnerships by the McNeil Affiliates

Item 12(b).......................  Cover page, Summary -- Recommendations of the
                                   special committee and the McNeil Investors
                                   board of directors, Summary -- Factors
                                   considered by the McNeil Investors board of
                                   directors and the special committee; fairness
                                   of the transaction, Summary -- Position of
                                   McNeil Partners and Robert A. McNeil
                                   regarding the fairness of the transaction,
                                   Summary -- Position of Whitehall, WXI/MNL
                                   Real Estate and WXI/McN Realty, Special
                                   Factors -- Recommendations of the special
                                   committee and the McNeil Investors board of
                                   directors; fairness of the transaction,
                                   Special Factors -- Position of McNeil
                                   Partners and Robert A. McNeil regarding the
                                   fairness of the transaction, Special
                                   Factors -- Position of Whitehall, WXI/MNL
                                   Real Estate and WXI/McN Realty, The
                                   Meeting -- Recommendations of the McNeil
                                   Investors board of directors


Item 13(a).......................  Summary -- Dissenters' rights, Summary --
                                   Recommendations of the special committee and
                                   the McNeil Investors board of directors,
                                   Summary -- Factors considered by the McNeil
                                   Investors board of directors and the special
                                   committee; fairness of the transaction,
                                   Special Factors -- Dissenters' rights,
                                   Special Factors -- Recommendations of the
                                   special committee and the McNeil Investors
                                   board of directors; fairness of the
                                   transaction, Appendix E

Item 13(b).......................  The Meeting -- Lists of limited
                                   partners of the Partnership

Item 13(c).......................  Not applicable


Item 14(a).......................  Incorporation of Certain Documents by
                                   Reference, Summary Financial Data of
                                   the Partnership, Certain Financial
                                   Projections of the Partnership, Annual Report
                                   and Quarterly Report (The Partnership's
                                   Annual Report on Form 10-K for the year ended
                                   December 31, 1998, and the Partnership's
                                   Quarterly Report on Form 10-Q for the
                                   quarter ended September 30, 1999, and the
                                   Partnership's audited financial statements
                                   included in the Form 10-K and unaudited
                                   financial statements included in the Form
                                   10-Q, are incorporated herein by reference
                                   pursuant to General Instruction D to Schedule
                                   13E-3.)

Item 14(b).......................  Not applicable

                                       4


Item 15(a)-(b)...................  Summary -- Recommendations of the special
                                   committee and the McNeil Investors board of
                                   directors, Summary -- Opinions and reports of
                                   financial advisors, Summary -- Interests of
                                   certain persons in matters to be acted upon;
                                   conflicts of interest, Special Factors --
                                   Background of the transaction, Special
                                   Factors -- Interests of certain persons in
                                   matters to be acted upon; conflicts of
                                   interest, Special Factors -- Recommendations
                                   of the special committee and the McNeil
                                   Investors board of directors; fairness of the
                                   transaction, Special Factors -- Opinions and
                                   reports of financial advisors, Special
                                   Factors -- Expenses relating to the
                                   transaction, The Meeting -- Solicitation of
                                   proxies

Item 16..........................  Proxy Statement in its entirety

Item 17..........................  Not applicable. See Item 17 of this Amended
                                   and Restated Transaction Statement.

- ----------

                                       5



ITEM 1.    ISSUER AND CLASS OF SECURITY SUBJECT TO THE TRANSACTION.

          (a) The information set forth on the cover page and under "Summary --
Parties to the transaction" in the Proxy Statement is incorporated herein by
reference.

          (b) The information set forth on the cover page and under "Summary --
Record date; voting power," "The Meeting -- Record date; voting power" and
"Related Security Holder Matters -- Additional information concerning limited
partner units" in the Proxy Statement is incorporated herein by reference.

          (c)-(d) The information set forth under "Related Security Holder
Matters -- Additional information concerning limited partner units" in the
Proxy Statement is incorporated herein by reference.

          (e) Not applicable

          (f) The information set forth under "Related Security Holder
Matters -- Recent transactions in the Partnership's limited partner units" in
the Proxy Statement is incorporated herein by reference.

ITEM 2.    IDENTITY AND BACKGROUND.

          (a)-(e), (g) This Amended and Restated Transaction Statement is being
filed jointly by the Filing Persons. One of the Filing Persons is the
Partnership. The Partnership is the issuer of the class of equity securities
which is the subject of the Rule 13e-3 transaction. The information set forth on
the cover page and under "Summary --Parties to the transaction" and "Controlling
Persons, Directors And Executive Officers of McNeil Partners, McNeil Investors,
WXI/MNL Real Estate, L.L.C., WH Advisors, L.L.C. XI and The Goldman Sachs Group,
Inc." in the Proxy Statement is incorporated herein by reference.

          (f) During the past five years, none of McNeil Partners, McNeil
Investors, Robert A. McNeil or any of the other McNeil named persons set forth
in "Controlling Persons, Directors and Executive Officers of McNeil Partners,
McNeil Investors, WXI/MNL Real Estate, L.L.C., WH Advisors, L.L.C. XI and The
Goldman Sachs Group, Inc. -- Background of McNeil named persons" in the Proxy
Statement has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or was a party to a civil proceeding of a
judicial or administrative body of competent jurisdiction and as a result of
that proceeding was or is subject to a judgment, decree or final order enjoining
further violations of, or prohibiting activities subject to, federal or state
securities laws or finding any violations of those laws.

              During the past five years, none of WXI/McN Realty, WXI/MNL Real
Estate, Whitehall or any of the WXI/McN Realty named persons set forth in
"Controlling Persons, Directors and Executive Officers of McNeil Partners,
McNeil Investors, WXI/MNL Real Estate, L.L.C., WH Advisors, L.L.C. XI and The
Goldman Sachs Group, Inc. -- Background of WXI/McN Realty named persons" in the
Proxy Statement has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or was a party to a civil proceeding of a
judicial or administrative body of competent jurisdiction and as a result of
that proceeding was or is subject to a judgment, decree or final order enjoining
further violations of, or prohibiting activities subject to, federal or state
securities laws or finding any violations of those laws.

                                       6


ITEM 3.    PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS.

     (a)-(b) The information set forth under "Summary -- Structure of the
transaction," "Summary -- Effects of the transaction," "Special Factors --
Effects of the transaction," "Summary -- Allocation of the aggregate
consideration in the transaction," "Special Factors -- Opinions and reports of
financial advisors -- Allocation analysis and opinions of Stanger & Co.
- -- Stanger & Co. allocation analysis," "Summary -- Determination of merger
consideration for growth/shelter units in the Partnership," "Special Factors --
Determination of merger consideration for growth/shelter units in the
Partnership," "Special Factors--Interests of certain persons in matters to be
acted upon; conflicts of interest," "Special Factors --Background of the
transaction," "Special Factors --Purposes and reasons for the transaction,"
"Related Security Holder Matters --Recent transactions in the Partnership's
limited partner units," "Related Security Holder Matters --Past contacts,
transactions and negotiations" and "Special Factors--Events subsequent to the
execution of the Master Agreement" in the Proxy Statement is incorporated herein
by reference.

ITEM 4.    TERMS OF THE TRANSACTION.

     (a) The information set forth under "Summary," "Special Factors --
Recommendations of the special committee and the McNeil Investors board of
directors; fairness of the transaction," "Special Factors -- Interests of
certain persons in matters to be acted upon; conflicts of interest," "Special
Factors -- Purposes and reasons for the transaction," "Special Factors --
Effects of the transaction," "Special Factors -- Opinions and reports of
financial advisors -- Allocation analysis and opinions of Stanger & Co. --
Stanger & Co. allocation analysis," "Summary -- Determination of merger
consideration for growth/shelter units in the Partnership," "Special Factors --
Determination of merger consideration for growth/shelter units in the
Partnership," "The Master Agreement," "WXI/McN Realty Operating
Agreement," "Other Agreements Between the McNeil Affiliates and Affiliates of
WXI/McN Realty" and "Special Factors --Plans for the McNeil Partnerships that
participate in the transaction" in the Proxy Statement is incorporated herein by
reference.

     (b)   The information set forth in "Summary -- Interests of certain persons
in matters to be acted upon; conflicts of interest," "Special Factors --
Interests of certain persons in matters to be acted upon; conflicts of interest"
and "WXI/McN Realty Operating Agreement" in the Proxy Statement is incorporated
herein by reference.

ITEM 5.    PLANS OR PROPOSALS OF THE ISSUER OR AFFILIATE.

     (a)-(g) The information set forth under "Special Factors -- Financing;
sources of funds," "Special Factors -- Plans for the McNeil Partnerships that
participate in the transaction," "Special Factors -- Effects of the
transaction," "Related Security Holder Matters -- Plans or proposals," "Special
Factors -- Interests of certain persons in matters to be acted upon; conflicts
of interest," "The Master Agreement," WXI/McN Realty Operating Agreement,"
"Other Agreements Between the McNeil Affiliates and Affiliates of WXI/McN
Realty," "Summary -- Financing; sources of funds," "Summary --Interests of
certain persons in matters to be acted upon; conflicts of interest," "Summary --
Effects of the transaction" and "Summary -- Structure of the transaction" in the
Proxy Statement is incorporated herein by reference.

ITEM 6.    SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

     (a), (c) The information set forth under "Special Factors -- Financing;
sources of funds," "The Master Agreement -- Aggregate consideration," "The
Master Agreement -- Material representations and warranties," "Special
Factors -- Effects of the transaction," "Special Factors -- Interests of certain
persons in matters to be acted upon; conflicts of interest -- Receipt of
aggregate consideration by the McNeil Affiliates," "Summary -- Structure of the
transaction," "Special Factors -- Opinions and reports of financial advisors --
Allocation analysis and opinions of Stanger & Co. -- Stanger & Co. allocation
analysis," "Summary -- Determination of merger consideration for growth/shelter
units in the Partnership," "Special Factors -- Determination of merger
consideration for growth/shelter units in the Partnership," "Summary -- Effects
of the transaction" and "Summary -- Allocation of the aggregate consideration in
the transaction" in the Proxy Statement is incorporated herein by
reference.

     (b) The information set forth under "Special Factors -- Expenses relating
to the transaction," "The Meeting -- Solicitation of proxies" "Special Factors
- -- Opinions and reports of financial advisors--Allocation analysis and opinions
of Stanger & Co.-- Fee arrangements," "Special Factors -- Opinions and reports
of financial advisors -- Eastdil Realty Company opinions -- Fee arrangements"
and "The Master Agreement -- Fees and expenses" in the Proxy Statement is
incorporated herein by reference.

     (d)   Not applicable.

ITEM 7.    PURPOSE(S), ALTERNATIVES, REASONS AND EFFECTS.

     (a), (c) The information set forth under "Special Factors -- Purposes and
reasons for the transaction," "Special Factors -- Recommendations of the
special committee and the McNeil Investors board of directors; fairness of the
transaction," "Special Factors -- Background of the transaction" "Special
Factors -- Opinions and reports of financial advisors,""Special Factors --
Alternatives to the transaction," "Summary -- Purposes and reasons for the
transaction," "Summary--Recommendations of the special committee and the McNeil
Investors board of directors," "Summary -- Factors considered by the McNeil
Investors board of directors and the special committee; fairness of the
transaction" and "Summary -- Opinions and reports of financial advisors" in the
Proxy Statement and Appendices C-1, C-2, D-1 and D-2 thereto are incorporated
herein by reference.

     (b) The information set forth under "Special Factors -- Alternatives to the
transaction" in the Proxy Statement is incorporated herein by reference.

                                       7



     (d) The information set forth under "Summary -- Structure of the
transaction," "Summary -- Effects of the transaction," "Summary -- Purposes and
reasons for the transaction," "Summary -- Interests of certain persons in
matters to be acted upon; conflicts of interest," "Summary -- Allocation of the
aggregate consideration in the transaction," "Summary -- Federal income tax
consequences of the transaction," "Summary -- Accounting treatment of
transaction" "Special Factors -- Effects of the transaction," "Special Factors
- -- Purposes and reasons for the transaction," "Special Factors -- Opinions and
reports of financial advisors -- Allocation analysis and opinions of Stanger &
Co. -- Stanger & Co. allocation analysis," "Summary -- Determination of merger
consideration for growth/shelter units in the Partnership," "Special Factors --
Determination of merger consideration for growth/shelter units in the
Partnership," "The Master Agreement -- The mergers," "The Master Agreement --
The contributions," "The Master Agreement --Aggregate consideration," "The
Master Agreement -- Fees and expenses," "The Master Agreement -- Material
covenants," "Special Factors -- Anticipated accounting treatment," "WXI/McN
Realty Operating Agreement," "Other Agreements Between the McNeil Affiliates and
Affiliates of WXI/McN Realty," "Special Factors -- Federal income tax
consequences," "Special Factors -- Interests of certain persons in matters to be
acted upon; conflicts of interest," "Special Factors -- Plans for the McNeil
Partnerships that participate in the transaction" and "Special Factors -- Plans
for the McNeil Partnerships that do not participate in the transaction" in the
Proxy Statement is incorporated herein by reference.

ITEM 8.    FAIRNESS OF THE TRANSACTION.

     (a)-(b); (d)-(f) The information set forth under "Special Factors --
Recommendations of the special committee and the McNeil Investors board of
directors; fairness of the transaction," "Summary -- Factors considered by the
McNeil Investors board of directors and the special committee; fairness of the
transaction," "Summary --Recommendations of the special committee and the McNeil
Investors board of directors," "Summary --Position of McNeil Partners and Robert
A. McNeil regarding the fairness of the transaction," "Summary -- Position of
Whitehall, WXI/MNL Real Estate and WXI/McN Realty," "Summary -- Opinions and
reports of financial advisors," "Special Factors -- Opinions and reports of
financial advisors," "Special Factors -- Position of McNeil Partners and Robert
A. McNeil regarding the fairness of the transaction," "Special Factors --
Position of Whitehall, WXI/MNL Real Estate and WXI/McN Realty," "Special
Factors -- Alternatives to the transaction," "Special Factors -- Background of
the transaction" and "Special Factors -- Interests of certain persons in matters
to be acted upon; conflicts of interest" in the Proxy Statement and Appendices
C-1, C-2, D-1 and D-2 thereto are incorporated herein by reference.

     (c) The information set forth on the cover page and under "Summary --
Quorum; vote required," "The Meeting -- Vote required," "Summary -- Interests of
certain persons in matters to be acted upon; conflicts of interest -- Ownership
of limited partner units in the Partnership," "The Meeting -- Ownership of
limited partner units in the Partnership," "Special Factors -- Interests of
certain persons in matters to be acted upon; conflicts of interest -- Ownership
of limited partner units in the McNeil Partnerships by the McNeil Affiliates,"
"Special Factors -- Recommendations of the special committee and the McNeil
Investors board of directors; fairness of the transaction -- Recommendations of
the special committee" and "Summary -- Factors considered by the McNeil
Investors board of directors and the special committee; fairness of the
transaction" in the Proxy Statement is incorporated herein by reference.


ITEM 9.    REPORTS, OPINIONS, APPRAISALS AND CERTAIN NEGOTIATIONS.

     (a)-(b) The information set forth under "Special Factors -- Recommendations
of the special committee and the McNeil Investors board of directors; fairness
of the transaction," "Special Factors -- Opinions and reports of financial
advisors," "Special Factors -- Background of the transaction," "The Master
Agreement -- Aggregate consideration --Allocation of the aggregate
consideration," "Summary -- Allocation of the aggregate consideration in the
transaction," "Summary -- Opinions and reports of financial advisors,"
"Summary --Recommendations of the special committee and the McNeil Investors
board of directors" and "Summary -- Factors considered by the McNeil Investors
board of directors and the special committee; fairness of the transaction" in
the Proxy Statement and Appendices C-1, C-2, D-1 and D-2 thereto are
incorporated herein by reference.

     (c) The information set forth under "Where You Can Find More Information"
in the Proxy Statement and Appendices C-1, C-2, D-1 and D-2 thereto are
incorporated herein by reference.

ITEM 10.   INTEREST IN SECURITIES OF THE ISSUER.

     (a) The information set forth under "Special Factors -- Interests of
certain persons in matters to be acted upon; conflicts of interest --
Ownership of limited partner units in the McNeil Partnerships by the McNeil
Affiliates," and "Related Security Holder Matters -- Principal holders of
limited partner units" in the Proxy Statement is incorporated herein by
reference.

     (b) The information set forth in "Related Security Holder Matters -- Recent
transactions in the Partnership's limited partner units" in the Proxy Statement
is incorporated herein by reference.

ITEM 11.   CONTRACTS, ARRANGEMENTS OR UNDERSTANDINGS WITH RESPECT TO THE
           ISSUER'S SECURITIES.

     The information set forth under "Summary -- Structure of the transaction,"
"Summary -- Effects of the transaction," "Special Factors -- Effects of the
transaction," "Summary --Allocation of the aggregate consideration in the
transaction," "Special Factors -- Opinions and reports of financial advisors --
Allocation analysis and opinions of Stanger & Co. -- Stanger & Co. allocation
analysis," "Summary -- Determination of merger consideration for growth/shelter
units in the Partnership," "Special Factors -- Determination of merger
consideration for growth/shelter units in the Partnership," "The Master
Agreement," "WXI/McN Realty Operating Agreement," "Other Agreements Between the
McNeil Affiliates and Affiliates of WXI/McN Realty," "Related Security Holder
Matters -- Contracts, arrangements and understandings with respect to limited
partner units in the Partnership," "Summary -- Quorum; vote required,"
"Summary --Interests of certain persons in matters to be acted upon; conflicts
of interest --Ownership of limited partner units in the Partnership," "The
Meeting --Ownership of limited partner units in the Partnership," "Special
Factors -- Interests of certain persons in matters to be acted upon; conflicts
of interest --Ownership of limited partner units in the McNeil Partnerships by
the McNeil Affiliates," "Special Factors -- Events subsequent to the execution
of the Master Agreement" and "Other Agreements With Respect to the Transaction"
in the Proxy Statement is incorporated herein by reference.

ITEM 12.   PRESENT INTENTION AND RECOMMENDATION OF CERTAIN PERSONS WITH REGARD
     TO THE TRANSACTION.


                                       8


     (a) The information set forth under "Summary -- Quorum; vote required,"
"Summary -- Interests of certain persons in matters to be acted upon; conflicts
of interest -- Ownership of limited partner units in the Partnership," "The
Meeting -- Ownership of limited partner units in the Partnership" and "Special
Factors -- Interests of certain persons in matters to be acted upon; conflicts
of interest -- Ownership of limited partner units in the McNeil Partnerships by
the McNeil Affiliates" in the Proxy Statement is incorporated herein by
reference.


     (b) The information set forth on the cover page and under "Summary --
Recommendations of the special committee and the McNeil Investors board of
directors," "Summary -- Factors considered by the McNeil Investors board of
directors and the special committee; fairness of the transaction," "Summary --
Position of McNeil Partners and Robert A. McNeil regarding the fairness of the
transaction," "Summary -- Position of Whitehall, WXI/MNL Real Estate and WXI/McN
Realty," "Special Factors -- Recommendations of the special committee and the
McNeil Investors board of directors; fairness of the transaction," "Special
Factors -- Position of McNeil Partners and Robert A. McNeil regarding the
fairness of the transaction," "Special Factors -- Position of Whitehall, WXI/MNL
Real Estate and WXI/McN Realty," and "The Meeting -- Recommendations of the
McNeil Investors board of directors" in the Proxy Statement is incorporated
herein by reference.

ITEM 13.   OTHER PROVISIONS OF THE TRANSACTION.

     (a) The information set forth under "Summary -- Dissenters' rights,"
"Summary -- Recommendations of the special committee and the McNeil Investors
board of directors," "Summary -- Factors considered by the McNeil Investors
board of directors and the special committee; fairness of the transaction,"
"Special Factors -- Dissenters' rights" and "Special Factors -- Recommendations
of the special committee and the McNeil Investors board of directors; fairness
of the transaction --Recommendations of the special committee" in the
Proxy Statement and Appendix E thereto are incorporated herein by reference.


     (b) The information set forth under "The Meeting -- Lists of limited
partners of the Partnership" in the Proxy Statement is incorporated herein by
reference.

     (c)   Not applicable.

ITEM 14.   FINANCIAL INFORMATION.

     (a) The information set forth under "Incorporation of Certain Documents by
Reference," "Summary Financial Data of the Partnership" and "Certain Financial
Projections of the Partnership" in the Proxy Statement is incorporated herein by
reference. Pursuant to General Instruction D to Schedule 13E-3, the
Partnership's Annual Report on Form 10-K for the year ended December 31, 1998
and its Quarterly Report on Form 10-Q for the quarter ended September 30, 1999
are incorporated herein by reference. The Partnership's audited financial
statements included in the Form 10-K and unaudited financial statements included
in the Form 10-Q are incorporated herein by reference. In addition, the
Partnership's Annual Report on Form 10-K for the year ended December 31, 1998
and its Quarterly Report on Form 10-Q for the quarter ended September 30, 1999
will be delivered to holders of limited partner units in the Partnership
together with the Proxy Statement. See "Annual Report and Quarterly Report" and
"Incorporation of Certain Documents by Reference" in the Proxy Statement.

     (b)   Not applicable.

ITEM 15.   PERSONS AND ASSETS EMPLOYED, RETAINED OR UTILIZED.

     (a)-(b) The information set forth under "Summary -- Recommendations of the
special committee and the McNeil Investors board of directors," "Summary --
Opinions and reports of financial advisors," "Summary -- Interests of certain
persons in matters to be acted upon; conflicts of interest," "Special Factors --
Background of the transaction," "Special Factors -- Interests of certain persons
in matters to be acted upon; conflicts of interest," "Special Factors --
Recommendations of the special committee and the McNeil Investors board of
directors; fairness of the transaction," "Special Factors -- Opinions and
reports of financial advisors," "Special Factors -- Expenses relating to the
transaction" and "The

                                       9



Meeting -- Solicitation of proxies" in the Proxy Statement is incorporated
herein by reference.

ITEM 16.   ADDITIONAL INFORMATION.

     The information contained in the Proxy Statement is incorporated herein by
reference in its entirety.

ITEM 17.     MATERIAL TO BE FILED AS EXHIBITS.

     (a)     Not applicable

     (b)(1)  Opinion of Robert A. Stanger & Co., Inc. dated June 24, 1999
             (incorporated by reference to Appendix C-1 to the Proxy Statement)

     (b)(2)  Opinion of Robert A. Stanger & Co., Inc. dated December 10, 1999
             (incorporated by reference to Appendix C-2 to the Proxy Statement)

     (b)(3)  Opinion of Eastdil Realty Company L.L.C. dated June 24, 1999
             (incorporated by reference to Appendix D-1 to the Proxy Statement)

     (b)(4)  Opinion of Eastdil Realty Company L.L.C. dated December 10, 1999
             (incorporated by reference to Appendix D-2 to the Proxy Statement)

     (b)(5)  Status Report on Proposed Transaction Involving the McNeil
             Partnerships, dated June 24, 1999, prepared by Robert A. Stanger &
             Co., Inc.(1)

     (b)(6)  Factual chronology of PaineWebber, Incorporated, dated June 3,
             1999(2)

     (b)(7)  Estimates of the deficit restoration obligations of the general
             partners of the McNeil Partnerships as of January 31, 2000,
             prepared by Arthur Andersen LLP**

     (b)(8)  Status report of Eastdil Realty Company, L.L.C., dated May 25,
             1999(2)

     (b)(9)  Report of Houlihan, Lokey, Howard & Zukin Capital, dated as of
             June 1999(2)

     (b)(10) Status Report on Proposed Transaction Involving the McNeil
             Partnerships, dated December 1999, prepared by Robert A.
             Stanger & Co., Inc.**

     (c)(1)  Master Agreement, dated as of June 24, 1999, as amended as of
             December 2, 1999 and December 10, 1999, by and among WXI/McN
             Realty L.L.C., the McNeil Partnerships (as defined therein), McNeil
             Investors, Inc., McNeil Partners, L.P., McNeil Real Estate
             Management, Inc., McNeil Summerhill, Inc. and Robert A. McNeil
             (incorporated by reference to Appendix A to the Proxy Statement)

     (c)(2)  Form of First Amended and Restated Limited Liability Company
             Operating Agreement of WXI/McN Realty L.L.C. (incorporated by
             reference to Appendix B to the Proxy Statement)

     (c)(3)  Voting Agreement, dated as of December 7, 1999, by and among McNeil
             Partners, L.P. on behalf of itself and each of the McNeil
             Partnerships (other than Regency North Associates, L.P., Fairfax
             Associates II, Ltd. and McNeil Summerhill I, L.P.), Regency North
             Associates, L.P., Fairfax Associates II, Ltd., McNeil Summerhill I,
             L.P., McNeil Real Estate Management, Inc., McNeil Investors, Inc.,
             Robert A. McNeil, Carole J. McNeil, High River Limited Partnership,
             Riverdale LLC, Unicorn Associates Corporation, Longacre Corp. and
             Carl C. Icahn **

     (d)(1)  Proxy Statement **

     (d)(2)  The Partnership's Annual Report on Form 10-K for the year ended
             December 31, 1998 (incorporated by reference to the Partnership's
             Annual Report on Form 10-K for the year ended December 31, 1998)

     (d)(3)  The Partnership's Quarterly Report on Form 10-Q for the quarter
             ended September 30, 1999 (incorporated by reference to the
             Partnership's Quarterly Report on Form 10-Q for the quarter ended
             September 30, 1999)

     (e)(1)  Article 7.6 of the California Corporations Code (incorporated by
             reference to Appendix E to the Proxy Statement)

     (f)     Not applicable


- ------------
**  Filed herewith.

(1) Previously filed as the similarly numbered exhibit to Amendment No. 1 to the
    Preliminary Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by the
    Partnership, the General Partner, McNeil Investors and Robert A. McNeil with
    the Securities and Exchange Commission on September 30, 1999.

(2) Previously filed as the similarly numbered exhibit to Amendment No. 2 to the
    Preliminary Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by the
    Filing Persons with the Securities and Exchange Commission on October 21,
    1999.

                                       10


                                   SIGNATURE
                                   ---------


     After due inquiry and to the best of its knowledge and belief, the
undersigned certifies that the information set forth in this Amended and
Restated Transaction Statement is true, complete and correct.

Dated: December 14, 1999         McNEIL REAL ESTATE FUND XXIII, L.P.

                                    By:  McNeil Partners, L.P.
                                    Its: General Partner

                                    By:  McNeil Investors, Inc.
                                    Its: General Partner

                                    By: /s/ Ron K. Taylor
                                        -----------------------------
                                         Name:  Ron K. Taylor
                                         Title: President


                                 McNEIL PARTNERS, L.P.

                                    By:  McNeil Investors, Inc.
                                    Its: General Partner

                                    By: /s/ Ron K. Taylor
                                       ---------------------------------
                                         Name:  Ron K. Taylor
                                         Title: President


                                 McNEIL INVESTORS, INC.

                                    By: /s/ Ron K. Taylor
                                       ---------------------------------
                                         Name:  Ron K. Taylor
                                         Title: President


                                 ROBERT A. McNEIL

                                    By: /s/ Robert A. McNeil
                                       ---------------------------------
                                         Name:  Robert A. McNeil


                                 WXI/McN REALTY L.L.C.

                                    By:  WXI/MNL Real Estate, L.L.C.
                                    Its: Managing Member

                                    By:  Whitehall Street Real Estate Limited
                                         Partnership XI
                                    Its: Managing Member

                                    By:  WH Advisors, L.L.C. XI
                                    Its: General Partner

                                    By: /s/Jonathan Langer
                                        ------------------
                                      Name:  Jonathan Langer
                                      Title: Vice President


                                 WXI/MNL REAL ESTATE, L.L.C.

                                    By:  Whitehall Street Real Estate Limited
                                         Partnership XI
                                    Its: Managing Member

                                    By:  WH Advisors, L.L.C. XI
                                    Its: General Partner

                                    By: /s/Jonathan Langer
                                        ------------------
                                      Name:  Jonathan Langer
                                      Title: Vice President


                                 WHITEHALL STREET REAL ESTATE LIMITED
                                 PARTNERSHIP XI

                                    By:  WH Advisors, L.L.C. XI
                                    Its: General Partner

                                    By: /s/Jonathan Langer
                                        ------------------
                                      Name:  Jonathan Langer
                                      Title: Vice President




                                 EXHIBIT INDEX

     (a)     Not applicable

     (b)(1)  Opinion of Robert A. Stanger & Co., Inc. dated June 24, 1999
             (incorporated by reference to Appendix C-1 to the Proxy Statement)

     (b)(2)  Opinion of Robert A. Stanger & Co., Inc. dated December 10, 1999
             (incorporated by reference to Appendix C-2 to the Proxy Statement)

     (b)(3)  Opinion of Eastdil Realty Company L.L.C. dated June 24, 1999
             (incorporated by reference to Appendix D-1 to the Proxy Statement)

     (b)(4)  Opinion of Eastdil Realty Company L.L.C. dated December 10, 1999
             (incorporated by reference to Appendix D-2 to the Proxy Statement)

     (b)(5)  Status Report on Proposed Transaction Involving the McNeil
             Partnerships, dated June 24, 1999, prepared by Robert A. Stanger &
             Co., Inc.(1)

     (b)(6)  Factual chronology of PaineWebber, Incorporated, dated June 3,
             1999(2)

     (b)(7)  Estimates of the deficit restoration obligations of the general
             partners of the McNeil Partnerships as of January 31, 2000,
             prepared by Arthur Andersen LLP**

     (b)(8)  Status report of Eastdil Realty Company, L.L.C., dated May 25,
             1999(2)

     (b)(9)  Report of Houlihan, Lokey, Howard & Zukin Capital, dated as of June
             1999(2)

     (b)(10) Status Report on Proposed Transaction Involving the McNeil
             Partnerships, dated December 1999, prepared by Robert A.
             Stanger & Co., Inc.**

     (c)(1)  Master Agreement, dated as of June 24, 1999, as amended as of
             December 2, 1999 and December 10, 1999, by and among WXI/McN
             Realty L.L.C., the McNeil Partnerships (as defined therein), McNeil
             Investors, Inc., McNeil Partners, L.P., McNeil Real Estate
             Management, Inc., McNeil Summerhill, Inc. and Robert A. McNeil
             (incorporated by reference to Appendix A to the Proxy
             Statement)

     (c)(2)  Form of First Amended and Restated Limited Liability Company
             Operating Agreement of WXI/McN Realty L.L.C. (incorporated by
             reference to Appendix B to the Proxy Statement)

     (c)(3)  Voting Agreement, dated as of December 7, 1999, by and among McNeil
             Partners, L.P. on behalf of itself and each of the McNeil
             Partnerships (other than Regency North Associates, L.P., Fairfax
             Associates II, Ltd. and McNeil Summerhill I, L.P.), Regency North
             Associates, L.P., Fairfax Associates II, Ltd., McNeil Summerhill I,
             L.P., McNeil Real Estate Management, Inc., McNeil Investors, Inc.,
             Robert A. McNeil, Carole J. McNeil, High River Limited Partnership,
             Riverdale LLC, Unicorn Associates Corporation, Longacre Corp. and
             Carl C. Icahn **

     (d)(1)  Proxy Statement **

     (d)(2)  The Partnership's Annual Report on Form 10-K for the year ended
             December 31, 1998 (incorporated by reference to the Partnership's
             Annual Report on Form 10-K for the year ended December 31, 1998)

     (d)(3)  The Partnership's Quarterly Report on Form 10-Q for the quarter
             ended September 30, 1999 (incorporated by reference to the
             Partnership's Quarterly Report on Form 10-Q for the quarter ended
             September 30, 1999)

     (e)(1)  Article 7.6 of the California Corporations Code (incorporated by
             reference to Appendix E to the Proxy Statement)

     (f)     Not applicable


- -------------
**  Filed herewith.

(1) Previously filed as the similarly numbered exhibit to Amendment No. 1 to the
    Preliminary Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by the
    Partnership, the General Partner, McNeil Investors and Robert A. McNeil with
    the Securities and Exchange Commission on September 30, 1999.

(2) Previously filed as the similarly numbered exhibit to Amendment No. 2 to the
    Preliminary Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by the
    Filing Persons with the Securities and Exchange Commission on October 21,
    1999.