UNITED STATES SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.1 )* On-Site Sourcing, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682195102 (CUSIP Number) Bruce Lev c/o Loeb Partners Corporation 61 Broadway, N.Y., N.Y., 10006 (212) 483-7017 (Name, address and Telephone Number of Person Authorized to Receive Notices and Communications) November 25, 2003 (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ]. Check the following box if a fee is being paid with statement [ ]. (A fee is not required only if the following reporting person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described is Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.) Note: Six copies of this statement, including all exhibits, should be filed with the Commission. See Rule 13d-1(a) for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remained of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). SCHEDULE 13D CUSIP NO. 682195102 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Loeb Partners Corporation 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS* WC, O 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [ ] PURSUANT TO ITEMS 2(d) or 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF 7 SOLE VOTING POWER SHARES 17,122 Shares of Common stock BENEFICIALLY 8 SHARED VOTING POWER OWNED BY 11,128 Shares of Common stock EACH 9 SOLE DISPOSITIVE POWER REPORTING 17,122 Shares of Common stock PERSON WITH 10 SHARED DISPOSITIVE POWER 11,128 Shares of Common stock 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 28,250 Shares of Common stock 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.51% 14 TYPE OF REPORTING PERSON* PN, BD, IA SCHEDULE 13D CUSIP NO. 682195102 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Loeb Arbitrage Fund 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS WC, O 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED [ ] PURSUANT TO ITEMS 2(d) or 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF 7 SOLE VOTING POWER SHARES 290,416 Shares of Common stock BENEFICIALLY 8 SHARED VOTING POWER OWNED BY ----- EACH 9 SOLE DISPOSITIVE POWER REPORTING 290,416 Shares of Common stock PERSON WITH 10 SHARED DISPOSITIVE POWER ----- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 290,416 Shares of Common stock 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.22% 14 TYPE OF REPORTING PERSON* PN, BD SCHEDULE 13D CUSIP NO. 682195102 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Loeb Offshore Fund, Ltd. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS* WC, O 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [ ] PURSUANT TO ITEMS 2(d) or 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands NUMBER OF 7 SOLE VOTING POWER SHARES 23,969 Shares of Common stock BENEFICIALLY 8 SHARED VOTING POWER OWNED BY -------- EACH 9 SOLE DISPOSITIVE POWER REPORTING 23,969 Shares of Common stock PERSON WITH 10 SHARED DISPOSITIVE POWER ------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 23,969 Shares of Common stock 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.43% 14 TYPE OF REPORTING PERSON* CO Item 1. Security and Issuer. ------ ------------------- This statement refers to the Common Stock of On-Site Sourcing, Inc., 832 North Henry Street, Alexandria, VA., 22314. Item 2. Identity and Background. ------ ----------------------- No Change Item 3. Source and Amount of Funds or Other Compensation. ------ ------------------------------------------------ No Change Item 4. Purpose of Transaction. ------ ---------------------- No Change Item 5. Interest in Securities of the Issuer. ------ ------------------------------------ (a) The persons reporting hereby owned the following shares of Common Stock as of November 25, 2003. Shares of Common Stock Loeb Arbitrage Fund 290,416 Loeb Partners Corporation* 28,250 Loeb Offshore Fund 23,969 ----------- 342,635 The total shares of Common Stock constitute 6.16% the 5,566,000 outstanding shares of Common Stock as reported by the issuer. ------------------------- *Including 11,128 shares of Common Stock purchased for the account of one customer of Loeb Partners Corporation as to which it has investment discretion. (b) See paragraph (a) above. (c) The following purchases of Common Stock have been made in the last sixty (60) days by the following: Purchases of Common Stock Holder Date Shares Average Price Loeb Partners Corp.* 10-28-03 10000 $2.47 10-29-03 4600 2.49 10-30-03 1600 2.51 10-31-03 2000 2.47 11-03-03 1198 2.43 11-04-03 395 2.45 11-04-03 541 2.45 11-05-03 973 2.45 11-07-03 1264 2.43 11-10-03 120 2.45 11-11-03 355 2.38 11-12-03 178 2.47 11-13-03 33 2.47 11-14-03 908 2.48 11-17-03 413 2.50 11-18-03 784 2.53 11-24-03 2063 2.54 11-25-03 825 2.53 Holder Shares Average Price Loeb Arbitrage Fund 10-28-03 106250 $2.467 10-29-03 48875 2.491 10-30-03 17000 2.508 10-31-03 21250 2.468 11-03-03 12723 2.433 11-04-03 8075 2.450 11-04-03 1870 2.448 11-05-03 2840 2.446 11-07-03 12965 2.428 11-10-03 200 2.468 11-10-03 1275 2.455 11-11-03 3644 2.384 11-12-03 1822 2.467 11-13-03 339 2.467 11-14-03 9322 2.484 11-17-03 4237 2.497 11-18-03 8051 2.529 11-24-03 21187 2.536 11-25-03 8491 2.528 Holder Shares Average Price Loeb Offshore Fund 10-28-03 8750 $2.47 10-29-03 4025 2.49 10-30-03 1400 2.51 10-31-03 1750 2.47 11-03-03 1048 2.43 11-04-03 665 2.45 11-04-03 154 2.45 11-05-03 287 2.45 11-07-03 1071 2.43 11-10-03 105 2.45 11-11-03 301 2.38 11-12-03 150 2.47 11-13-03 28 2.47 11-14-03 770 2.48 11-17-03 350 2.50 11-18-03 665 2.53 11-24-03 1750 2.54 11-25-03 700 2.53 -------------------- *Including 11,128 shares of Common Stock purchased for the account of one customer of Loeb Partners Corporation as to which it has investment discretion. All reported transactions were effected on Nasdaq. (d) Not applicable. (e). Not applicable. Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to the Issuer. None. Item 7. Materials to be Filed as Exhibits. None. Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. November 26, 2003 Loeb Partners Corporation By: /s/ Gideon J. King Executive Vice President November 26, 2003 Loeb Arbitrage Fund By: Loeb Arbitrage Management, Inc. By: /s/ Gideon J. King, President November 26, 2003 Loeb Offshore Fund By: /s/ Gideon J. King, Director