<PAGE>


                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                                   FORM 10-QSB
                   QUARTERLY REPORT UNDER SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934


For the Quarter Ended March 31, 2001              Commission File Number 0-12210
                      --------------                                     -------



                  PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP
       -----------------------------------------------------------------
       (exact name of small business issuer as specified in its charter)



            Maryland                                     04-2801764
-------------------------------             ------------------------------------
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
incorporation or organization)



Five Cambridge Center, Cambridge, MA                          02142
----------------------------------------                    ----------
(Address of principal executive offices)                    (Zip Code)



Registrant's telephone number, including area code (617) 234-3000
                                                   --------------



Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the Registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.


                                                      YES [ ]        NO [X]



<PAGE>


PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP



PART 1 - FINANCIAL INFORMATION
ITEM 1. - FINANCIAL STATEMENTS
BALANCE SHEETS

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------
                                                       March 31,       December 31,
                                                          2001             2000
                                                      (Unaudited)       (Audited)
--------------------------------------------------------------------------------------
<S>                                                     <C>             <C>
                                   ASSETS

Assets
     Cash and cash equivalents                          $566,347        $268,773
     Other                                                 5,341               -
                                                        --------        --------

Total assets                                            $571,688        $268,773
                                                        ========        ========


                      LIABILITIES AND PARTNERS' CAPITAL

Liabilities and partners' capital
     Accounts payable                                   $      -        $      -
     Partners' capital                                   571,688         268,773
                                                        --------        --------

Total liabilities and partners' capital                 $571,688        $268,773
                                                        ========        ========
</TABLE>














                        See notes to financial statements

                                      - 2 -

<PAGE>


PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP

STATEMENTS OF OPERATIONS
(UNAUDITED)

For the Three Months Ended March 31, 2001 and 2000
(Unaudited)

<TABLE>
<CAPTION>
                                                       2001          2000
                                                    -----------------------
<S>                                                 <C>            <C>
INCOME:
   Distribution from Operating Partnership          $299,970       $      -
   Interest                                            2,945          3,700
                                                    --------       --------

Net income:                                         $302,915       $  3,700
                                                    ========       ========

Net income per unit of limited
   partnership interest outstanding                 $   5.08       $   6.00
                                                    ========       ========
</TABLE>




















                        See notes to financial statements

                                      - 3 -

<PAGE>



PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP
STATEMENT OF CHANGES IN PARTNERS' CAPITAL

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------
                                                 Linnaeus-
                                                 Phoenix
For the Three Months Ended       Winthrop        Associates       Investor         Total
March 31, 2001 and 2000       Financial Co.,      Limited          Limited       Partners'
(Unaudited)                        Inc.         Partnership       Partners         Capital
----------------------------------------------------------------------------------------------
<S>                            <C>              <C>              <C>             <C>
Balance December 31, 2000      $ (270,757)      $ (572,666)      $1,112,196      $  268,773

Net income                          1,515            1,514          299,886         302,915
                               ----------       ----------       ----------      ----------

Balance, March 31, 2001          (269,242)        (571,152)       1,412,082      $  571,688
                               ==========       ==========       ==========      ==========


Balance December 31, 1999      $ (269,914)      $ (571,823)      $1,275,071      $  433,334

Net income                             19               19            3,662           3,700
                               ----------       ----------       ----------      ----------

Balance, March 31, 2000        $ (269,895)      $ (571,804)      $1,278,733      $  437,034
                               ==========       ==========       ==========      ==========
</TABLE>







                        See notes to financial statements

                                      - 4 -






<PAGE>


PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------

For the Three Months Ended
March 31, 2001 and 2000 (Unaudited)                           2001            2000
----------------------------------------------------------------------------------------
<S>                                                        <C>             <C>
Cash flow from operating activities:
     Net income                                            $ 302,915       $   3,700
     Adjustments to reconcile net income to
         net cash used in operating activities:
           Increase in due from Operating Partnership              -         (17,323)
           Increase in other assets                           (5,341)              -
                                                           ---------       ---------

Net cash provided by (used in) operating activities          297,574         (13,623)
                                                           ---------       ---------

Net increase (decrease) in cash and cash equivalents         297,574         (13,623)

Cash and cash equivalents at beginning of period             268,773         433,334
                                                           ---------       ---------

Cash and cash equivalents at end of period                 $ 566,347       $ 419,711
                                                           =========       =========
</TABLE>








                        See notes to financial statements

                                      - 5 -




<PAGE>


PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP
NOTES TO FINANCIAL STATEMENTS
March 31, 2001
(Unaudited)



1.       ACCOUNTING AND FINANCIAL REPORTING POLICIES

The condensed financial statements included herein have been prepared by the
Partnership, without audit, pursuant to the rules and regulations of the
Securities and Exchange Commission. The Partnership's accounting and financial
reporting policies are in conformity with generally accepted accounting
principles and include all adjustments in interim periods considered necessary
for a fair presentation of the results of operations. Certain information and
footnote disclosures normally included in financial statements prepared in
accordance with generally accepted accounting principles have been condensed or
omitted pursuant to such rules and regulations. It is suggested that these
financial statements be read in conjunction with the financial statements and
the notes thereto included in the Partnership's Annual Report on Form 10-KSB for
the year ended December 31, 2000.

The accompanying financial statements reflect the Partnership's results of
operations for an interim period and are not necessarily indicative of the
results of operations for the year ending December 31, 2001.


2.       INVESTMENT IN OPERATING PARTNERSHIP

The Partnership accounts for its investment in Presidential Towers, Ltd. (the
"Operating Partnership") using the equity method of accounting. Under the equity
method of accounting, the initial investment is recorded at cost, increased or
decreased by the Partnership's share of income or losses, and decreased by
distributions. Equity in the loss of the Operating Partnership is no longer
recognized once the investment balance reaches zero.

The loss from the Operating Partnership, not recognized since the investment
balance reached zero, will be offset against the Partnership's share of future
income from the Operating Partnership.


3.       TAXABLE LOSS

The Partnership's taxable income for 2001 is not expected to differ from that
for financial reporting purposes.






                                      -6-

<PAGE>


PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP
ITEM 2 - MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION


The matters discussed in this Form 10-QSB contain certain forward-looking
statements and involve risks and uncertainties (including changing market
conditions, competitive and regulatory matters, etc.) The discussion of the
Partnership's business and results of operations, including forward-looking
statements pertaining to such matters does not take into account the effects of
any changes to the Partnership's business and results of operations.
Accordingly, actual results could differ materially from those projected in the
forward-looking statements as a result of a number of factors, including those
identified herein.

This Item should be read in conjunction with the financial statements and other
items contained elsewhere in the report.


Liquidity and Capital Resources

The Partnership's primary source of liquidity is distributions from Presidential
Towers Ltd., an Illinois limited partnership (the "Operating Partnership"). The
Partnership is responsible for paying various administrative costs associated
with monitoring the Partnership's investment in the Operating Partnership, and
paying various professional fees associated with the affairs of the Partnership.

During the three months ended March 31, 2001 and March 31, 2000, the Operating
Partnership did not make any distributions to the Partnership. A significant
restructuring of the ownership and debt of the Operating Partnership was
finalized in April 1995. As a result of this restructuring, the Partnership is
entitled to receive an annual distribution from the Operating Partnership as a
reimbursement of the Partnership's administrative expenses and professional fees
up to an annual maximum of $30,000. In addition, the Operating Partnership
distributes to the Partnership an amount equal to the amount of income allocated
to the Partnership by the Operating Partnership in each year. It is not expected
that the Operating Partnership will be able to make any distributions to the
Partnership from operations of the Operating Partnership in excess of these
amounts until the property is sold. However, due to the preferred return
required to be paid to TKI Presidential Partners and the Department of Housing
and Urban Development, it is likely that a sale of the property may not generate
sufficient funds to permit a distribution to the Partnership. On January 10,
2001, the Operating Partnership refinanced its existing mortgages into a first
mortgage note which will result in an extraordinary gain for financial statement
purposes of approximately $57 million on extinguishment of debt in 2001.
Accordingly, it is anticipated that limited partners will not receive a return
of their original investment in the Partnership.












                                      -7-


<PAGE>



PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP
ITEM 2 - MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION


The Partnership's liquidity based on cash and cash equivalents increased by
$297,574 to $566,347 at March 31, 2001 as compared to December 31, 2000 as a
result of a distribution received from the Operating Partnership. It is expected
that so long as the Partnership's administrative expenses do not exceed $30,000
in any year, the Partnership's cash and cash equivalents will remain relatively
constant until the Operating Partnership is liquidated.


Results of Operations

Net income increased by $299,215 for the three months ended March 31, 2001 as
compared to the three months ended March 31, 2000 due to a distribution from the
Operating Partnership as discussed above.











                                      -8-
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PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP


PART II - OTHER INFORMATION


Item 6.  Exhibit and reports on Form 8-K


         (a)  Exhibits
                    None


         (b)  Reports on Form 8-K
                    No reports on Form 8-K were filed during the three months
                    ended March 31, 2001.








                                      -9-

<PAGE>



PRESIDENTIAL ASSOCIATES I LIMITED PARTNERSHIP


                                   SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                            PRESIDENTIAL ASSOCIATES I
                            LIMITED PARTNERSHIP
                            (Partnership)

                            By: Winthrop Financial Co., Inc.
                                Managing General Partner


Date: May 14, 2001          By: /s/ Thomas C. Staples
                                --------------------------------
                                Thomas C. Staples
                                Chief Financial Officer

Date: May 14, 2001          By: /s/ Michael L. Ashner
                                --------------------------------
                                Michael L. Ashner
                                Chief Executive Officer


























                                      -10-