STAR MULTI CARE SERVICES INC
S-4, 1996-07-19
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 19, 1996
 
                                                      REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                         STAR MULTI CARE SERVICES, INC.
             (Exact name of Registrant as specified in its charter)
 
                           99 Railroad Station Plaza
                           Hicksville, New York 11801
                                 (516) 938-2016
               (Address, including zip code, telephone number and
             area code of Registrant's principal executive offices)
 
<TABLE>
<S>                              <C>                <C>
           NEW YORK                 11-1975534                  7361
 (State or other jurisdiction    (I.R.S. Employer   (Primary Standard Industrial
              of                  Identification    Classification Code Number)
incorporation or organization)       Number)
</TABLE>
 
                             MR. WILLIAM FELLERMAN
                                   SECRETARY
                         STAR MULTI CARE SERVICES, INC.
                           99 RAILROAD STATION PLAZA
                           HICKSVILLE, NEW YORK 11801
                                 (516) 938-2016
                (Name, address including zip code, and telephone
               number, including area code of agent for service)
                            ------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                       <C>
           GARY SIMON, ESQ.                        SCOTT N. WOLFE, ESQ.
 PARKER CHAPIN FLATTAU & KLIMPL, LLP                 LATHAM & WATKINS
     1211 AVENUE OF THE AMERICAS                701 "B" STREET, SUITE 2100
       NEW YORK, NEW YORK 10036              SAN DIEGO, CALIFORNIA 92101-8197
</TABLE>
 
                            ------------------------
 
   APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO THE
                                    PUBLIC:
  AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.
                            ------------------------
 
    If  the  securities  being registered  on  this  form are  being  offered in
connection with the formation of a holding company and there is compliance  with
General Instruction G, please check the following box. / /
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                     PROPOSED
                                                    PROPOSED          MAXIMUM
                                                     MAXIMUM         AGGREGATE        AMOUNT OF
     TITLE OF SECURITIES         AMOUNT TO BE    OFFERING PRICE      OFFERING       REGISTRATION
       TO BE REGISTERED         REGISTERED (1)    PER SHARE (2)      PRICE (2)         FEE (3)
<S>                             <C>              <C>              <C>              <C>
Common Stock, par value $.001
 per share....................     1,445,496         $6.9529      $10,050,389.14      $3,465.65
</TABLE>
 
(1)  This Registration Statement  relates to the Common  Stock of the Registrant
    issuable to holders of  Common Stock of AMSERV  HEALTHCARE INC., a  Delaware
    corporation ("AMSERV"), in the proposed merger of AMSERV with a wholly-owned
    subsidiary of the Registrant and the related transactions described herein.
 
(2)  Pursuant to Rule 457(f), the registration  fee was computed on the basis of
    the market value of the AMSERV Common  Stock to be exchanged in the  merger,
    computed  in accordance with Rule 457(c) on  the basis of the average of the
    high and low prices per  share of such stock on  The Nasdaq Stock Market  on
    July 17, 1996.
 
(3)  $1,503 of  the registration  fee was  previously paid  with the preliminary
    proxy statement/prospectus  filings made  by the  Registrant and  AMSERV  on
    April 18, 1996 pursuant to Rule 457(b).
                            ------------------------
 
    THE  REGISTRANT HEREBY  AMENDS THIS REGISTRATION  STATEMENT ON  SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A  FURTHER  AMENDMENT  WHICH SPECIFICALLY  STATES  THAT  THIS  REGISTRATION
STATEMENT  SHALL THEREAFTER BECOME EFFECTIVE IN  ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT  OF 1933 OR  UNTIL THIS REGISTRATION  STATEMENT SHALL  BECOME
EFFECTIVE  ON SUCH DATE AS THE COMMISSION  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
              CROSS-REFERENCE SHEET BETWEEN ITEMS IN FORM S-4 AND
                  JOINT PROXY STATEMENT/PROSPECTUS PURSUANT TO
                         ITEM 501(B) OF REGULATION S-K.
 
<TABLE>
<CAPTION>
  ITEM                                                                           CAPTION IN JOINT PROXY
   NO.                       FORM S-4 CAPTION                                     STATEMENT/PROSPECTUS
- ---------  -----------------------------------------------------  -----------------------------------------------------
<S>        <C>                                                    <C>
 1.        Forepart of Registration Statement and Outside Front
           Cover Page of Prospectus.............................  Facing Page of Registration Statement; Outside Front
                                                                  Cover Page
 2.        Inside Front and Outside Back Cover Pages of
           Prospectus...........................................  Inside Front Cover Page; Available Information; Table
                                                                  of Contents
 3.        Risk Factors, Ratio of Earnings to Fixed Charges and
           Other Information....................................  Summary; Summary Historical Consolidated Financial
                                                                  Data; Comparative Per Share Data; Risk Factors; The
                                                                  AMSERV Meeting; The STAR Meeting; The Merger
 4.        Terms of the Transaction.............................  Summary; The Merger; The Merger Agreement; Comparison
                                                                  of Rights of Holders of AMSERV Common Stock and STAR
                                                                  Common Stock
 5.        Pro Forma Financial Information......................  Summary; Summary Unaudited Pro Forma Condensed
                                                                  Combined Financial Data; Unaudited Pro Forma
                                                                  Condensed Combined Financial Statements
 6.        Material Contacts with the Company Being Acquired....  *
 7.        Additional Information Required for Reoffering by
           Persons and Parties Deemed to Be Underwriters........  *
 8.        Interests of Named Experts and Counsel...............  The Merger; Legal Matters; Experts
 9.        Disclosure of Commission Position on Indemnification
           for Securities Act Liabilities.......................  *
10.        Information With Respect to S-3 Registrants..........  *
11.        Incorporation of Certain Information by Reference....  *
12.        Information With Respect to S-2 or S-3 Registrants...  *
13.        Incorporation of Certain Information by Reference....  *
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
  ITEM                                                                           CAPTION IN JOINT PROXY
   NO.                       FORM S-4 CAPTION                                     STATEMENT/PROSPECTUS
- ---------  -----------------------------------------------------  -----------------------------------------------------
14.        Information With Respect to Registrants Other Than
           S-3 or S-2 Registrants...............................  Summary; STAR Summary Historical Consolidated
                                                                  Financial Data; Comparative Per Share Data;
                                                                  Comparative Market Data; Business of STAR; STAR's
                                                                  Management's Discussion and Analysis of Financial
                                                                  Condition and Results of Operations; Ownership of
                                                                  Certain Beneficial Owners and Management of STAR;
                                                                  Management of STAR; Executive Compensation of STAR;
                                                                  Certain Relationships and Related Transactions of
                                                                  STAR; Unaudited Pro Forma Condensed Combined
                                                                  Financial Statements; STAR Financial Statements
<S>        <C>                                                    <C>
15.        Information With Respect to S-3 Companies............  *
16.        Information With Respect to S-2 or S-3 Companies.....  *
17.        Information With Respect to Companies Other Than S-2
           or S-3 Companies.....................................  Summary; AMSERV Summary Historical Consolidated
                                                                  Financial Data; Comparative Per Share Data;
                                                                  Comparative Market Data; Business of AMSERV; AMSERV's
                                                                  Management's Discussion and Analysis of Financial
                                                                  Condition and Results of Operations; Ownership of
                                                                  Certain Beneficial Owners and Management of AMSERV;
                                                                  Executive Officers of AMSERV; Significant Employees
                                                                  of AMSERV; Certain Relationships and Related
                                                                  Transactions of AMSERV; Unaudited Pro Forma Condensed
                                                                  Combined Financial Statements; AMSERV Financial
                                                                  Statements
18.        Information if Proxies, Consents or Authorizations
           are to be Solicited..................................  Outside Front Cover Page; Summary; The AMSERV
                                                                  Meeting; The STAR Meeting; The Merger
19.        Information if Proxies, Consents, or Authorizations
           are not to be Solicited or in an Exchange Offer......  *
</TABLE>
 
- ------------------------
*Indicates that Item is not applicable or answer is in the negative.
<PAGE>
                                     [LOGO]
                             AMSERV HEALTHCARE INC.
                       3252 HOLIDAY COURT, SUITE NO. 204
                           LA JOLLA, CALIFORNIA 92037
 
Dear Shareholder:
 
    You  are cordially invited to attend the Annual Meeting of Shareholders (the
"AMSERV Meeting") of AMSERV HEALTHCARE INC., a Delaware corporation  ("AMSERV"),
to be held on Friday, August 23, 1996, at 9:30 a.m., local time, at the Radisson
Hotel La Jolla, 3299 Holiday Court, La Jolla, California.
 
    At  the AMSERV  Meeting, you  will be  asked to  consider and  vote upon the
following  matters,  all  of  which   are  described  more  completely  in   the
accompanying Joint Proxy Statement/Prospectus:
 
        (1)  To approve and adopt  the Agreement and Plan  of Merger dated as of
    February 9,  1996, as  amended on  July 18,  1996 (as  amended, the  "Merger
    Agreement"),  between AMSERV and STAR MULTI  CARE SERVICES, INC., a New York
    corporation ("STAR"),  providing  for  the  merger  (the  "Merger")  of  AHI
    Acquisition  Corp. ("Merger Sub"), a Delaware corporation and a wholly-owned
    subsidiary  of  STAR,  with  and   into  AMSERV,  with  AMSERV  becoming   a
    wholly-owned  subsidiary of STAR and  the transactions contemplated thereby.
    In accordance with  the Merger Agreement,  each share of  Common Stock,  par
    value  $.01 per  share, of  AMSERV (the  "AMSERV Common  Stock") outstanding
    immediately prior to the consummation of  the Merger will be converted  into
    the  right to receive 0.4090 shares  (the "Exchange Ratio") of Common Stock,
    par value $.001 per share, of STAR (the "STAR Common Stock"). We urge you to
    review carefully the Joint  Proxy Statement/Prospectus and the  accompanying
    appendices;
 
        (2)  To elect five persons to AMSERV's Board of Directors to serve until
    the earlier of  (a) the next  Annual Meeting of  Shareholders of AMSERV  and
    until  the election and qualification of  their respective successors or (b)
    the consummation of the Merger contemplated by the Merger Agreement;
 
        (3) To ratify and approve the selection of Ernst & Young LLP as AMSERV's
    independent public accountants for the fiscal year ended June 29, 1996; and
 
        (4) To transact  such other  business as  may properly  come before  the
    AMSERV Meeting and any adjournments or postponements thereof.
 
    AFTER  CAREFUL CONSIDERATION, THE AMSERV BOARD OF DIRECTORS HAS APPROVED THE
MERGER AGREEMENT AND THE TRANSACTIONS  CONTEMPLATED THEREBY. THE BOARD  BELIEVES
THAT  THE TERMS OF  THE MERGER ARE  FAIR TO, AND  IN THE BEST  INTERESTS OF, THE
SHAREHOLDERS OF AMSERV AND UNANIMOUSLY RECOMMENDS THAT YOU VOTE IN FAVOR OF  THE
MERGER  AT THE  AMSERV MEETING. THE  AMSERV BOARD OF  DIRECTORS ALSO UNANIMOUSLY
RECOMMENDS  A  VOTE  FOR  EACH  OF  THE  NOMINEES  NAMED  IN  THE  JOINT   PROXY
STATEMENT/PROSPECTUS  AND FOR THE RATIFICATION OF  ERNST & YOUNG LLP AS AMSERV'S
INDEPENDENT PUBLIC ACCOUNTANTS FOR THE FISCAL YEAR ENDED JUNE 29, 1996.
 
    We urge you to review carefully the Joint Proxy Statement/Prospectus and the
accompanying appendices. We hope  you will attend  the AMSERV Meeting.  However,
whether  or not you plan to attend the AMSERV Meeting, it is important that your
shares are represented. Accordingly, please complete, sign and date the enclosed
proxy and  promptly return  it in  the  enclosed prepaid  envelope. If  you  are
present at the AMSERV Meeting you may, if you wish, withdraw your proxy and vote
in person.
 
                                          Very truly yours,
 
                                          /s/ EUGENE J. MORA
       -------------------------------------------------------------------------
                                          EUGENE J. MORA
                                          CHAIRMAN OF THE BOARD,
                                          CHIEF EXECUTIVE OFFICER AND PRESIDENT
                                          JULY 22, 1996
<PAGE>
                                     [LOGO]
 
                             AMSERV HEALTHCARE INC.
                       3252 HOLIDAY COURT, SUITE NO. 204
                           LA JOLLA, CALIFORNIA 92037
                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS
                     TO BE HELD ON FRIDAY, AUGUST 23, 1996
To the Shareholders of
AMSERV HEALTHCARE INC.:
    The  Annual  Meeting  of  Shareholders  (the  "AMSERV  Meeting")  of  AMSERV
HEALTHCARE INC., a Delaware corporation ("AMSERV"), will be held at the Radisson
Hotel La Jolla, 3299 Holiday Court,  La Jolla, California on Friday, August  23,
1996, at 9:30 a.m., local time, for the following purposes:
 
        1.   To approve and  adopt the Agreement and Plan  of Merger dated as of
    February 9,  1996, as  amended on  July 18,  1996 (as  amended, the  "Merger
    Agreement"),  between AMSERV and STAR MULTI  CARE SERVICES, INC., a New York
    corporation ("STAR"),  providing  for  the  merger  (the  "Merger")  of  AHI
    Acquisition  Corp. ("Merger Sub"), a Delaware corporation and a wholly-owned
    subsidiary  of  STAR,  with  and   into  AMSERV,  with  AMSERV  becoming   a
    wholly-owned  subsidiary of STAR and  the transactions contemplated thereby.
    In accordance with  the Merger Agreement,  each share of  Common Stock,  par
    value  $.01 per  share, of  AMSERV (the  "AMSERV Common  Stock") outstanding
    immediately prior to the consummation of  the Merger will be converted  into
    the  right to receive 0.4090 shares  (the "Exchange Ratio") of Common Stock,
    par value $.001 per share, of STAR (the "STAR Common Stock");
 
        2.  To elect five persons to AMSERV's Board of Directors to serve  until
    the  earlier of (a)  the next Annual  Meeting of Shareholders  of AMSERV and
    until the election and qualification  of their respective successors or  (b)
    the consummation of the Merger contemplated by the Merger Agreement;
 
        3.  To ratify and approve the selection of Ernst & Young LLP as AMSERV's
    independent auditors for the fiscal year ended June 29, 1996; and
 
        4.   To  transact such  other business as  may properly  come before the
    AMSERV Meeting and any adjournments or postponements thereof.
 
    The Merger  and  other related  matters  are  more fully  described  in  the
accompanying  Joint Proxy Statement/Prospectus and the appendices thereto, which
form a part of this Notice.
 
    The Board of Directors of AMSERV has fixed the close of business on July 15,
1996 as the  record date  (the "AMSERV Record  Date") for  the determination  of
shareholders  entitled to  notice of and  to vote  at the AMSERV  Meeting or any
adjournments or postponements thereof. Only shareholders of record at the  close
of business on the AMSERV Record Date are entitled to notice of, and to vote at,
the AMSERV Meeting and any adjournments or postponements thereof.
 
    AFTER  CAREFUL CONSIDERATION, THE AMSERV BOARD OF DIRECTORS HAS APPROVED THE
MERGER AGREEMENT AND THE TRANSACTIONS  CONTEMPLATED THEREBY. THE BOARD  BELIEVES
THAT  THE TERMS OF  THE MERGER ARE  FAIR TO, AND  IN THE BEST  INTERESTS OF, THE
SHAREHOLDERS OF AMSERV AND UNANIMOUSLY RECOMMENDS THAT YOU VOTE IN FAVOR OF  THE
MERGER  AT THE  AMSERV MEETING. THE  AMSERV BOARD OF  DIRECTORS ALSO UNANIMOUSLY
RECOMMENDS  A  VOTE  FOR  EACH  OF  THE  NOMINEES  NAMED  IN  THE  JOINT   PROXY
STATEMENT/PROSPECTUS  AND FOR THE RATIFICATION OF  ERNST & YOUNG LLP AS AMSERV'S
INDEPENDENT PUBLIC ACCOUNTANTS FOR THE FISCAL YEAR ENDED JUNE 29, 1996.
 
    Whether or not you plan to attend the AMSERV Meeting, please complete, sign,
date and  return promptly  the enclosed  form  of proxy.  A return  envelope  is
enclosed  for your convenience and requires no postage for mailing in the United
States.
 
                                          By Order of the Board of Directors,
 
                                          /s/ LESLIE HODGE
       -------------------------------------------------------------------------
                                          LESLIE HODGE
                                          SECRETARY
July 22, 1996
<PAGE>
                                     [LOGO]
 
                         STAR MULTI CARE SERVICES, INC.
                           99 RAILROAD STATION PLAZA
                           HICKSVILLE, NEW YORK 11801
 
July 22, 1996
 
Dear Shareholder:
 
    You  are cordially invited to attend  a Special Meeting of Shareholders (the
"STAR Meeting")  of STAR  MULTI  CARE SERVICES,  INC.,  a New  York  corporation
("STAR"),  to be held on Friday, August 23,  1996, at 12:30 p.m., local time, at
the offices of Parker Chapin Flattau & Klimpl, LLP, 1211 Avenue of the  Americas
(18th Floor), New York, New York.
 
    At  the STAR Meeting, you will be asked to consider and vote upon a proposal
to approve and adopt the  Agreement and Plan of Merger  dated as of February  9,
1996,  as amended on July 18, 1996 (as amended, the "Merger Agreement"), between
AMSERV HEALTHCARE INC., a Delaware  corporation ("AMSERV"), and STAR,  providing
for  the  merger  (the "Merger")  of  AHI  Acquisition Corp.  ("Merger  Sub"), a
Delaware corporation  and  a wholly-owned  subsidiary  of STAR,  with  and  into
AMSERV,  with  AMSERV  becoming  a  wholly-owned  subsidiary  of  STAR  and  the
transactions contemplated thereby. In accordance with the Merger Agreement, each
share of Common Stock, par value $.01  per share, of AMSERV (the "AMSERV  Common
Stock")  outstanding immediately prior to the consummation of the Merger will be
converted into the  right to  receive 0.4090  shares (the  "Exchange Ratio")  of
Common  Stock, par value $.001 per share,  of STAR (the "STAR Common Stock"). In
addition, approval and adoption of the Merger Agreement will constitute approval
of the  assumption  by  STAR of  AMSERV's  stock  option plan  under  which  the
outstanding AMSERV stock options were granted.
 
    In connection with the Merger, I have entered into an agreement (the "Voting
Agreement"),  pursuant to which I have agreed to vote (or cause to be voted) the
847,155 shares (34.4 %) of STAR Common Stock of which I am the direct beneficial
owner in  favor of  the  Merger and  the related  matters  and have  granted  an
irrevocable proxy to vote my shares in such a manner.
 
    The  Merger, the Voting  Agreement and other related  matters are more fully
described in the accompanying Joint  Proxy Statement/Prospectus. We urge you  to
review  carefully  the  Joint Proxy  Statement/Prospectus  and  the accompanying
appendices.
 
    AFTER CAREFUL CONSIDERATION,  THE STAR  BOARD OF  DIRECTORS HAS  UNANIMOUSLY
APPROVED  THE MERGER  AGREEMENT AND  THE TRANSACTIONS  CONTEMPLATED THEREBY. THE
BOARD BELIEVES  THAT THE  TERMS OF  THE  MERGER ARE  FAIR TO,  AND IN  THE  BEST
INTERESTS  OF, THE SHAREHOLDERS OF STAR AND UNANIMOUSLY RECOMMENDS THAT YOU VOTE
IN FAVOR OF THE MERGER AT THE STAR MEETING.
 
    We hope you will attend the STAR  Meeting. However, whether or not you  plan
to  attend the STAR Meeting,  it is important that  your shares are represented.
Accordingly, please  complete, sign  and date  the enclosed  proxy and  promptly
return  it in the enclosed  prepaid envelope. If you  are present at the meeting
you may, if you wish, withdraw your proxy and vote in person.
 
                                          Very truly yours,
 
                                          /s/ STEPHEN STERNBACH
       -------------------------------------------------------------------------
                                          STEPHEN STERNBACH
                                          PRESIDENT AND CHIEF EXECUTIVE OFFICER
<PAGE>
                                     [LOGO]
                         STAR MULTI CARE SERVICES, INC.
                           99 RAILROAD STATION PLAZA
                           HICKSVILLE, NEW YORK 11801
 
                  NOTICE OF A SPECIAL MEETING OF SHAREHOLDERS
                     TO BE HELD ON FRIDAY, AUGUST 23, 1996
 
To the Shareholders of
STAR MULTI CARE SERVICES, INC.:
 
    You  are hereby notified  that a Special Meeting  of Shareholders (the "STAR
Meeting") of STAR MULTI  CARE SERVICES, INC., a  New York corporation  ("STAR"),
will  be held at the offices of Parker Chapin Flattau & Klimpl, LLP, 1211 Avenue
of the Americas (18th Floor), New York,  New York at 12:30 p.m., local time,  on
Friday, August 23, 1996, to consider and act upon:
 
        1.   A proposal  to approve and  adopt the Agreement  and Plan of Merger
    dated as of February 9, 1996, as  amended on July 18, 1996 (as amended,  the
    "Merger  Agreement"), between AMSERV HEALTHCARE INC., a Delaware corporation
    ("AMSERV") and  STAR,  providing  for  the  merger  (the  "Merger")  of  AHI
    Acquisition  Corp. ("Merger Sub"), a Delaware corporation and a wholly-owned
    subsidiary  of  STAR,  with  and   into  AMSERV,  with  AMSERV  becoming   a
    wholly-owned  subsidiary of STAR and  the transactions contemplated thereby.
    In accordance with  the Merger Agreement,  each share of  Common Stock,  par
    value  $.01 per  share, of  AMSERV (the  "AMSERV Common  Stock") outstanding
    immediately prior to the consummation of  the Merger will be converted  into
    the  right to receive 0.4090 shares  (the "Exchange Ratio") of Common Stock,
    par value $.001 per share, of  STAR (the "STAR Common Stock"). In  addition,
    approval  and adoption of  the Merger Agreement  will constitute approval of
    the assumption  by  STAR of  AMSERV's  stock  option plan  under  which  the
    outstanding AMSERV stock options were granted.
 
        2.  Such other business as properly may come before the STAR Meeting and
    any adjournments or postponements thereof.
 
    The  Merger  and  other related  matters  are  more fully  described  in the
accompanying Joint Proxy Statement/Prospectus and the appendices thereto,  which
form a part of this Notice.
 
    The  Board of Directors of STAR has fixed  the close of business on July 15,
1996 as  the record  date (the  "STAR  Record Date")  for the  determination  of
shareholders  entitled  to notice  of and  to vote  at the  STAR Meeting  or any
adjournments or postponements thereof. Only shareholders of record at the  close
of business on the STAR Record Date are entitled to notice of and to vote at the
STAR  Meeting  and any  adjournments or  postponements thereof.  A list  of such
shareholders will be available for inspection at the offices of STAR located  at
99  Railroad Station Plaza, Hicksville, New York  11801, at least ten days prior
to the STAR Meeting.
 
    AFTER CAREFUL CONSIDERATION,  THE STAR  BOARD OF  DIRECTORS HAS  UNANIMOUSLY
APPROVED  THE MERGER  AGREEMENT AND  THE TRANSACTIONS  CONTEMPLATED THEREBY. THE
BOARD BELIEVES  THAT THE  TERMS OF  THE  MERGER ARE  FAIR TO,  AND IN  THE  BEST
INTERESTS  OF, THE SHAREHOLDERS OF STAR AND UNANIMOUSLY RECOMMENDS THAT YOU VOTE
IN FAVOR OF THE MERGER AT THE STAR MEETING.
 
    IF YOU DO NOT EXPECT TO BE PRESENT PERSONALLY AND YOU WISH YOUR SHARES TO BE
VOTED AT THE STAR MEETING, PLEASE SIGN, DATE AND RETURN THE PROXY BY MAIL IN THE
POSTAGE-PAID ENVELOPE SENT TO YOU HEREWITH  FOR THAT PURPOSE. IF YOU LATER  FIND
THAT YOU CAN BE PRESENT AT THE SPECIAL MEETING OR FOR ANY OTHER REASON DESIRE TO
REVOKE OR CHANGE YOUR PROXY, YOU MAY DO SO AT ANY TIME BEFORE IT IS VOTED.
                                          By Order of the Board of Directors,
 
                                          /s/ STEPHEN STERNBACH
                                          STEPHEN STERNBACH
                                          PRESIDENT AND CHIEF EXECUTIVE OFFICER
July 22, 1996
 
                             YOUR VOTE IS IMPORTANT
 TO  VOTE YOUR SHARES,  PLEASE SIGN, DATE  AND COMPLETE THE  ENCLOSED PROXY AND
 MAIL IT  PROMPTLY. A  RETURN ENVELOPE  IS ENCLOSED  FOR YOUR  CONVENIENCE  AND
 REQUIRES NO POSTAGE FOR MAILING IN THE UNITED STATES.
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                   SUBJECT TO COMPLETION, DATED JULY 19, 1996
 
PROSPECTUS
                             AMSERV HEALTHCARE INC.
                         STAR MULTI CARE SERVICES, INC.
 
                             JOINT PROXY STATEMENT
                          FOR MEETINGS OF SHAREHOLDERS
                     TO BE HELD ON FRIDAY, AUGUST 23, 1996
                               ------------------
 
                         STAR MULTI CARE SERVICES, INC.
                               ------------------
 
    This Joint Proxy Statement/Prospectus is being furnished to the shareholders
of AMSERV  HEALTHCARE  INC.,  a  Delaware corporation  ("AMSERV"),  and  to  the
shareholders of STAR MULTI CARE SERVICES, INC., a New York corporation ("STAR"),
in  connection with  the solicitation of  proxies by their  respective Boards of
Directors to  be used  at the  Annual  Meeting of  Shareholders of  AMSERV  (the
"AMSERV  Meeting")  and a  Special Meeting  of Shareholders  of STAR  (the "STAR
Meeting"), each of which is  to be held on Friday,  August 23, 1996, and at  any
adjournments or postponements thereof.
 
    At  each of the AMSERV Meeting and STAR Meeting, the respective shareholders
will be asked  to consider and  vote upon a  proposal to approve  and adopt  the
Agreement  and Plan of Merger  dated as of February 9,  1996, as amended on July
18, 1996  (as  amended,  the  "Merger  Agreement"),  between  STAR  and  AMSERV,
providing for the merger (the "Merger") of AHI Acquisition Corp. ("Merger Sub"),
a  Delaware corporation  and a  wholly-owned subsidiary  of STAR,  with and into
AMSERV,  with  AMSERV  becoming  a  wholly-owned  subsidiary  of  STAR  and  the
transactions  contemplated thereby. Upon consummation  of the Merger, each share
of Common Stock, par value $.01 per share, of AMSERV (the "AMSERV Common Stock")
outstanding immediately  prior  to  the  consummation  of  the  Merger  will  be
converted  into the  right to  receive 0.4090  shares (the  "Exchange Ratio") of
Common Stock, par value $.001 per share,  of STAR (the "STAR Common Stock").  In
addition, approval and adoption of the Merger Agreement will constitute approval
of  the assumption by  STAR of the  AMSERV Stock Option  Plan (as defined below)
under which the outstanding  AMSERV stock options were  issued. See "THE  MERGER
AGREEMENT  -- Treatment  of Stock  Options." A copy  of the  Merger Agreement is
attached  as  Appendix  A  to  this  Joint  Proxy  Statement/Prospectus  and  is
incorporated herein by reference.
 
    AMSERV's  shareholders will  also elect  five persons  to AMSERV's  Board of
Directors. The directors elected  at the AMSERV Meeting  will, if the Merger  is
not  consummated, hold office  until the next Annual  Meeting of Shareholders of
AMSERV and until their respective successors are elected and qualified. However,
if the Merger is consummated, the  directors elected at the AMSERV Meeting  will
hold  office  only until  consummation of  the Merger.  See "ELECTION  OF AMSERV
DIRECTORS." AMSERV's shareholders will further be asked to ratify the  selection
of  Ernst & Young LLP as AMSERV's independent auditors for the fiscal year ended
June  29,  1996.  See  "RATIFICATION   OF  APPOINTMENT  OF  INDEPENDENT   PUBLIC
ACCOUNTANTS OF AMSERV."
 
    IN  CONSIDERING THE RECOMMENDATIONS OF THE  BOARD OF DIRECTORS OF AMSERV AND
THE BOARD OF  DIRECTORS OF STAR  WITH RESPECT  TO THE MERGER  AGREEMENT AND  THE
TRANSACTIONS  CONTEMPLATED THEREBY,  SHAREHOLDERS SHOULD  BE AWARE  THAT CERTAIN
MEMBERS OF AMSERV'S MANAGEMENT AND AMSERV'S  BOARD HAVE INTERESTS IN THE  MERGER
THAT  ARE IN ADDITION TO AND MAY  CONFLICT WITH THE INTERESTS OF SHAREHOLDERS OF
AMSERV AND STAR GENERALLY.  SEE "THE MERGER --  INTERESTS OF CERTAIN PERSONS  IN
THE  MERGER; CONFLICTS  OF INTEREST" AND  "THE MERGER AGREEMENT  -- TREATMENT OF
STOCK OPTIONS."
 
    SEE "RISK FACTORS" BEGINNING ON PAGE 15 FOR A DISCUSSION OF CERTAIN  FACTORS
WHICH  SHOULD BE  CONSIDERED IN EVALUATING  THE MERGER DESCRIBED  HEREIN AND THE
SECURITIES OFFERED HEREBY.
 
    STAR  has  filed   with  the   Securities  and   Exchange  Commission   (the
"Commission")  a Registration  Statement (the "Registration  Statement") on Form
S-4 (Commission File No. 333-     ) under the Securities Act of 1933, as amended
(the "Securities Act"), with respect  to the shares of  STAR Common Stock to  be
issued  pursuant to the Merger Agreement. This Joint Proxy Statement/ Prospectus
constitutes the Prospectus of STAR filed as part of the Registration  Statement.
All  information contained  herein with  respect to  STAR has  been furnished by
STAR. All information contained herein with respect to AMSERV has been furnished
by AMSERV.
 
    The  AMSERV  Common  Stock  and  STAR   Common  Stock  are  quoted  in   the
over-the-counter market on The Nasdaq Stock Market's National Market System (the
"Nasdaq  National Market") under the symbols "AMSR" and "SMCS", respectively. On
July 17, 1996, the high and low sales prices for a share of AMSERV Common  Stock
and STAR Common Stock on the Nasdaq National Market were $2 7/8 and $2 13/16 and
$8  and $6  3/4, respectively. Based  on the average  of the high  and low sales
prices of AMSERV Common Stock  on July 17, 1996  the maximum aggregate value  of
the transactions contemplated by the Merger Agreement is $10,050,389.
 
    Based  on the Exchange Ratio and based upon  the average of the high and low
sales prices of STAR Common Stock on July 17, 1996, the dollar value of the STAR
Common Stock to be received for each  share of AMSERV Common Stock exchanged  is
$3.02.
                           --------------------------
 
THE  SECURITIES ISSUABLE PURSUANT TO  THIS JOINT PROXY STATEMENT/PROSPECTUS HAVE
NOT BEEN APPROVED OR DISAPPROVED BY  THE SECURITIES AND EXCHANGE COMMISSION  OR
 ANY   STATE  SECURITIES  COMMISSION,  NOR  HAS  THE  SECURITIES  AND  EXCHANGE
 COMMISSION OR ANY  STATE SECURITIES  COMMISSION PASSED UPON  THE ACCURACY  OR
  ADEQUACY  OF THIS JOINT PROXY   STATEMENT/PROSPECTUS. ANY REPRESENTATION TO
                      THE CONTRARY IS A CRIMINAL OFFENSE.
                            ------------------------
 
    THIS JOINT PROXY STATEMENT/PROSPECTUS AND THE ACCOMPANYING FORM OF PROXY ARE
FIRST BEING MAILED OR  DELIVERED TO THE  SHAREHOLDERS OF STAR  AND AMSERV ON  OR
ABOUT JULY 22, 1996.
                           --------------------------
 
      The date of this Joint Proxy Statement/Prospectus is July 19, 1996.
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
AVAILABLE INFORMATION......................................................................................          iv
SUMMARY....................................................................................................           1
  General..................................................................................................           1
  STAR.....................................................................................................           1
  Merger Sub...............................................................................................           2
  AMSERV...................................................................................................           2
  The Meetings.............................................................................................           3
  The Merger...............................................................................................           4
  Election of AMSERV Directors.............................................................................          10
  Ratification of Appointment of Independent Public Accountants of AMSERV..................................          10
  Summary Historical Consolidated Financial Data...........................................................          11
  Summary Unaudited Pro Forma Condensed Combined Financial Data............................................          14
RISK FACTORS...............................................................................................          15
COMPARATIVE PER SHARE DATA.................................................................................          18
COMPARATIVE MARKET DATA....................................................................................          19
THE AMSERV MEETING.........................................................................................          20
  General..................................................................................................          20
  Matters to Be Considered at the AMSERV Meeting...........................................................          20
  AMSERV Record Date.......................................................................................          20
  Proxies..................................................................................................          20
  Quorum...................................................................................................          21
  Vote Required............................................................................................          21
THE STAR MEETING...........................................................................................          22
  General..................................................................................................          22
  Matters to be Considered at the STAR Meeting.............................................................          22
  STAR Record Date.........................................................................................          22
  Proxies..................................................................................................          22
  Quorum...................................................................................................          23
  Vote Required............................................................................................          23
  Voting Agreement.........................................................................................          23
THE MERGER.................................................................................................          24
  Background of the Merger.................................................................................          24
  STAR's Reasons for the Merger; Recommendation of the STAR Board..........................................          34
  AMSERV's Reasons for the Merger; Recommendation of the AMSERV Board......................................          38
  Financial Advisor; Fairness Opinion......................................................................          40
  Certain Federal Income Tax Consequences..................................................................          44
  Interests of Certain Persons in the Merger; Conflicts of Interest........................................          45
  No Dissenters' Rights of Appraisal.......................................................................          46
  Regulatory Approvals.....................................................................................          46
  Accounting Treatment.....................................................................................          46
  Resale Restrictions......................................................................................          47
THE MERGER AGREEMENT.......................................................................................          47
  The Merger...............................................................................................          47
  Effective Time of the Merger.............................................................................          47
  Conversion of Securities.................................................................................          48
  Treatment of Stock Options...............................................................................          48
  Exchange of Certificates.................................................................................          48
  Treatment of AMSERV Class B Preferred....................................................................          49
  Representations and Warranties...........................................................................          49
  Covenants; Conduct of Business Prior to Effective Time...................................................          50
  Negotiations with Others.................................................................................          50
</TABLE>
<PAGE>
 
                         TABLE OF CONTENTS (CONTINUED)
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
  Management after the Merger..............................................................................          51
  Conditions of the Merger.................................................................................          51
  Termination..............................................................................................          52
  Effect of Termination and Abandonment....................................................................          52
  Amendment and Waiver.....................................................................................          52
COMPARISON OF RIGHTS OF HOLDERS OF AMSERV COMMON STOCK AND STAR COMMON STOCK...............................          53
  General..................................................................................................          53
  Voting Rights............................................................................................          53
  Amendments to Certificate of Incorporation...............................................................          54
  Special Meetings.........................................................................................          54
  Shareholders' Action Without a Meeting...................................................................          54
  Preemptive Rights........................................................................................          55
  Dividends................................................................................................          55
  Stock Repurchases........................................................................................          55
  Issuance of Rights or Options to Purchase Shares to Directors, Officers and Employees....................          56
  Loans to Directors.......................................................................................          56
  Classification of the Board of Directors.................................................................          56
  Duties of Directors......................................................................................          56
  Interested Director Transactions.........................................................................          57
  Limitations on Directors' Liability......................................................................          57
  Indemnification of Directors and Officers................................................................          58
  Removal of Directors.....................................................................................          59
DESCRIPTION OF STAR CAPITAL STOCK..........................................................................          60
  STAR Common Stock........................................................................................          60
  Certain Provisions of the Certificate of Incorporation and By-Laws.......................................          60
BUSINESS OF STAR...........................................................................................          62
  General..................................................................................................          62
  Home Care Services.......................................................................................          63
  Hospital Staffing........................................................................................          64
  Competition..............................................................................................          64
  Marketing................................................................................................          65
  Customers................................................................................................          65
  Government Regulations and Licensing.....................................................................          65
  Liability Insurance......................................................................................          66
  Employees................................................................................................          66
  Description of Properties................................................................................          67
  Legal Proceedings........................................................................................          67
STAR'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS...............          68
  Results of Operations....................................................................................          68
  Financial Condition, Liquidity and Capital Resources.....................................................          69
  Inflation and Seasonality................................................................................          70
OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF STAR..............................................          71
MANAGEMENT OF STAR.........................................................................................          72
EXECUTIVE COMPENSATION OF STAR.............................................................................          73
  Summary Compensation Table...............................................................................          73
  Option Grants in Last Fiscal Year........................................................................          73
</TABLE>
 
                                       ii
<PAGE>
                         TABLE OF CONTENTS (CONTINUED)
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
  Option Exercises in Last Fiscal Year and Year-End Values.................................................          73
  Standard Remuneration of Directors.......................................................................          73
  Employment and Management Agreements.....................................................................          73
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS OF STAR.....................................................          74
BUSINESS OF AMSERV.........................................................................................          74
  General..................................................................................................          74
  Description of Properties................................................................................          74
  Legal Proceedings........................................................................................          75
AMSERV'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.............         76]
  Liquidity and Capital Resources..........................................................................          76
  Results of Operations....................................................................................          76
OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF AMSERV............................................          79
ELECTION OF AMSERV DIRECTORS...............................................................................          80
  Nominees for Election....................................................................................          80
  Certain Committees of the Board..........................................................................          81
  Attendance at Meetings...................................................................................          81
  Compliance with Section 16(a) of the Exchange Act........................................................          82
  Compensation of Directors................................................................................          82
EXECUTIVE OFFICERS OF AMSERV...............................................................................          82
SIGNIFICANT EMPLOYEES OF AMSERV............................................................................          82
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS OF AMSERV...................................................          83
EXECUTIVE COMPENSATION OF AMSERV...........................................................................          84
  Summary Compensation Table...............................................................................          84
  Aggregated AMSERV Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values.................          84
  Employment Agreements....................................................................................          84
RATIFICATION OF APPOINTMENT OF INDEPENDENT PUBLIC ACCOUNTANTS OF AMSERV....................................          85
LEGAL MATTERS..............................................................................................          86
EXPERTS....................................................................................................          86
PROPOSALS BY AMSERV SHAREHOLDERS...........................................................................          86
OTHER BUSINESS.............................................................................................          86
UNAUDITED PRO FORMA CONDENSED-COMBINED FINANCIAL STATEMENTS................................................          87
INDEX TO FINANCIAL STATEMENTS..............................................................................         F-1
APPENDIX A -- Merger Agreement, as amended
APPENDIX B -- Opinion of Batchelder & Partners, Inc.
</TABLE>
 
                                      iii
<PAGE>
                             AVAILABLE INFORMATION
 
    STAR  and  AMSERV  are  subject to  the  informational  requirements  of the
Securities Exchange  Act  of 1934,  as  amended  (the "Exchange  Act"),  and  in
accordance  therewith file reports, proxy  statements and other information with
the Commission. The Registration Statement, as well as reports, proxy statements
and other information  filed by each  of STAR  and AMSERV can  be inspected  and
copied  at the  Commission's Public Reference  Room, Judiciary  Plaza, 450 Fifth
Street, N.W., Room  1024, Washington, D.C.  20549, and at  the public  reference
facilities maintained by the Commission at its regional offices located at Suite
1400,  Citicorp Center, 500  West Madison Street, Chicago,  Illinois 60661 and 7
World Trade  Center,  Suite 1300,  New  York, New  York  10048. Copies  of  such
materials  can  be obtained  from the  Commission at  prescribed rates  from the
Public  Reference  Section  of  the  Commission  at  450  Fifth  Street,   N.W.,
Washington,  D.C. 20549.  Electronic registration  statements filed  through the
Commission's Electronic  Data  Gathering,  Analysis  and  Retrieval  system  are
publicly  available  through  the  Commission's  Website  (http:// www.sec.gov).
Additionally, material filed by STAR and AMSERV can be inspected at the  offices
of  the  Nasdaq National  Market System  Reports Section,  1735 K  Street, N.W.,
Washington, D.C. 20006.
 
    STAR has filed the Registration  Statement with the Commission covering  the
STAR Common Stock to be issued pursuant to the Merger Agreement. As permitted by
the    rules   and   regulations   of   the   Commission,   this   Joint   Proxy
Statement/Prospectus does  not contain  all  the information  set forth  in  the
Registration Statement and the exhibits thereto. For further information, please
refer  to the Registration Statement, including the exhibits thereto. Statements
contained in this Joint Proxy  Statement/Prospectus relating to the contents  of
any  contract or other document referred to herein are not necessarily complete,
and reference is made to the copy of such contract or other document filed as an
exhibit to  the  Registration  Statement  or  such  other  document,  each  such
statement being qualified in all respects by such reference.
 
    All   information   concerning   STAR   contained   in   this   Joint  Proxy
Statement/Prospectus has been furnished by  STAR and all information  concerning
AMSERV  contained in this Joint Proxy Statement/Prospectus has been furnished by
AMSERV. No  person is  authorized to  provide  any information  or to  make  any
representation  with  respect  to  the matters  described  in  this  Joint Proxy
Statement/Prospectus other than those  contained herein and,  if given or  made,
such  information  or representation  must  not be  relied  upon as  having been
authorized  by   STAR,  AMSERV   or   any  other   person.  This   Joint   Proxy
Statement/Prospectus  does not constitute an offer to sell, or a solicitation of
any offer to  purchase, any securities,  or a  solicitation of a  proxy, in  any
jurisdiction  in which, or to or from any person to or from whom, it is unlawful
to make such an offer or solicitation. Neither the delivery of this Joint  Proxy
Statement/Prospectus  nor any  distribution of securities  hereunder shall under
any circumstances  be deemed  to imply  that there  has been  no change  in  the
assets,  properties or affairs of  STAR or AMSERV since  the date hereof or that
the information set forth  herein is correct  as of any  time subsequent to  the
date hereof.
 
                                       iv
<PAGE>
                                    SUMMARY
 
    THE  FOLLOWING IS  A SUMMARY OF  CERTAIN INFORMATION  CONTAINED ELSEWHERE IN
THIS JOINT PROXY STATEMENT/ PROSPECTUS. REFERENCE  IS MADE TO, AND THIS  SUMMARY
IS  QUALIFIED  IN  ITS  ENTIRETY BY,  THE  MORE  DETAILED  INFORMATION CONTAINED
ELSEWHERE IN THIS  JOINT PROXY STATEMENT/PROSPECTUS  AND THE APPENDICES  HERETO.
ALL SHAREHOLDERS ARE URGED TO READ THIS JOINT PROXY STATEMENT/PROSPECTUS AND ITS
APPENDICES  BEFORE VOTING ON  THE MATTERS DISCUSSED HEREIN.  AS USED HEREIN, THE
TERM "STAR"  REFERS TO  STAR MULTI  CARE SERVICES,  INC. AND  THE TERM  "AMSERV"
REFERS  TO AMSERV HEALTHCARE  INC., IN BOTH CASES  INCLUDING, UNLESS THE CONTEXT
OTHERWISE REQUIRES, THEIR RESPECTIVE SUBSIDIARIES.
 
GENERAL
 
    This Joint Proxy Statement/Prospectus is being furnished to shareholders  of
STAR  MULTI CARE SERVICES, INC., a  New York corporation ("STAR"), in connection
with the solicitation of proxies by the Board of Directors of STAR, for use at a
Special Meeting of Shareholders of STAR (the "STAR Meeting") which is  scheduled
to  be held on Friday, August 23, 1996. This Joint Proxy Statement/Prospectus is
also being  furnished to  shareholders  of AMSERV  HEALTHCARE INC.,  a  Delaware
corporation  ("AMSERV"), in connection  with the solicitation  of proxies by the
Board of Directors of AMSERV, for use  at the Annual Meeting of Shareholders  of
AMSERV  (the "AMSERV  Meeting") which  is also scheduled  to be  held on Friday,
August 23, 1996. At the STAR Meeting and the AMSERV Meeting, the shareholders of
STAR and the shareholders  of AMSERV will  be asked to  consider and vote  upon,
among other things, the proposed merger (the "Merger") of AHI Acquisition Corp.,
a  Delaware corporation  ("Merger Sub"),  with and  into AMSERV  pursuant to the
terms of the Agreement and Plan of Merger dated February 9, 1996, as amended  on
July  18, 1996  (as amended,  the "Merger  Agreement"). The  Merger Agreement is
included in this Joint Proxy  Statement/Prospectus as Appendix A. In  connection
with  the Merger, all of the outstanding  shares of Common Stock, $.01 par value
per share, of AMSERV (the "AMSERV Common Stock") will be exchanged for shares of
Common Stock, $.001 par value  per share, of STAR  (the "STAR Common Stock")  at
the  rate of 0.4090 shares (the "Exchange  Ratio") of STAR Common Stock for each
share of  AMSERV Common  Stock and  all outstanding  options to  acquire  AMSERV
Common Stock will be assumed by STAR, together with the AMSERV Stock Option Plan
under  which  those  options  were  granted, and  the  assumed  options  will be
converted into  options to  purchase STAR  Common Stock  based on  the  Exchange
Ratio.  In addition, at the  AMSERV Meeting, the shareholders  of AMSERV will be
asked to (i) elect five  persons to AMSERV's Board  of Directors to serve  until
the  earlier of (a) the next Annual  Meeting of Shareholders of AMSERV and until
the election  and  qualification  of  their respective  successors  or  (b)  the
consummation  of the Merger contemplated by the Merger Agreement and (ii) ratify
and approve the selection  of Ernst & Young  LLP as AMSERV's independent  public
accountants  for the fiscal  year ended June  29, 1996. The  information in this
Joint Proxy Statement/Prospectus concerning STAR  and AMSERV has been  furnished
by each of such entities respectively.
 
                                      STAR
 
    STAR  is in the  business of providing placement  services of registered and
licensed nurses and home health aides to patients for care at home ("Home Care")
and to a lesser extent temporary  health care personnel recruiting to  hospitals
and  nursing homes ("Hospital Staffing"). In addition, STAR maintains registries
of registered nurses, licensed practical  nurses, nurses' aides, certified  home
health  aides  and  certified personal  care  workers from  which  personnel are
recruited on a per diem basis to meet the requirements of STAR's clients.
 
    Prior to  its acquisition  by present  management in  1987, STAR's  business
related  primarily to providing private duty nurses to patients in hospitals and
staffing to hospitals. Under its current management, STAR expanded its  Hospital
Staffing  arrangements  to nursing  homes  and additional  hospitals  to provide
licensed nurses on a  per diem basis  for general staff.  In 1988, STAR  further
extended  its Hospital Staffing business to include providing licensed practical
nurses and nurses' aides.  In 1989, STAR began  providing Home Care services  in
New  York City pursuant to a license  from the New York State Health Department.
In 1990,  STAR expanded  its Home  Care services  to include  transportation  of
patients from hospital to home in ambulettes,
 
                                       1
<PAGE>
arrangements  to purchase and supply equipment and pharmaceuticals as prescribed
by the patient's physicians, and home infusion care. In 1991, STAR was  licensed
by  the  New York  State Department  of Health  to operate  an office  in Nassau
County, New York.
 
    In  1992,  STAR  expanded  its  existing  Home  Care  business  through  the
acquisition  of certain assets  from Unity Healthcare  Holding Company, Inc. and
its subsidiaries  ("Unity"),  including contract  rights  to provide  Home  Care
services  through various hospitals, community  agencies and other institutional
health care  providers. These  contract rights  complemented the  existing  home
health  care businesses of STAR  in geographic areas such  as New Jersey and New
York where STAR already operated. In addition, in these locations, STAR obtained
from Unity client referral lists to further expand existing operations.
 
    In addition  to  expanding  STAR's existing  regional  business,  the  Unity
acquisition  added  new operations  to STAR  in  new geographic  locations. STAR
acquired Unity's  Florida operations,  which included  certification to  receive
reimbursement  from Medicare and Medicaid in  Broward and Dade Counties. Most of
such Medicare and  Medicaid reimbursed  operations are located  in Dade  County.
STAR also acquired the assets representing Unity's operations in Florida that do
not  have Medicare  and Medicaid  certification, but  which operate  under state
license.
 
    In 1993, STAR further expanded its  existing Home Care business through  the
acquisition  of  certain  assets  of  DSI  Health  Care  Services,  Inc. ("DSI")
including  contract  rights  to  provide  Home  Care  services  through  various
hospitals,  community agencies  and other  institutional health  care providers.
These contract rights complimented  the existing Home Care  business of STAR  in
the Long Island, New York area.
 
    In  May 1995, STAR acquired certain  assets of Long Island Nursing Registry,
Inc. ("LINR") thereby further  expanding its Home  Care business. LINR  provided
nursing   and  other  skilled  health  care  services  with  both  Medicaid  and
non-Medicaid reimbursement  eligibility compatible  with the  business of  STAR.
LINR  maintains offices and does business under the STAR name in the Long Island
area and as  "Comprehensive Care  America" in  the Syracuse  area. The  acquired
assets   included  all  of  the  fixed  assets,  certain  of  the  contract  and
intellectual property rights  and all  of the  records, lists,  files and  books
(including  certain  customer  and  personnel  lists)  with  respect  to  or  in
connection with  the health  care business  conducted by  LINR. The  acquisition
expanded  STAR's  market area  into Suffolk  County,  augmented its  presence in
Nassau County and gave it significant market share in Central New York.
 
    Historically, a greater portion  of STAR's revenues  have been derived  from
Home  Care services and a lesser portion of such revenues have been derived from
Hospital Staffing. STAR believes  that this is a  result of changing social  and
economic  attitudes toward  the de-institutionalization  of patients  as well as
STAR's changing customer base.
 
    STAR's principal executive offices are located at 99 Railroad Station Plaza,
Hicksville, New York 11801, and its telephone number is (516) 938-2016.
 
MERGER SUB
 
    Merger Sub is a  Delaware corporation recently  organized as a  wholly-owned
subsidiary  of STAR for the purpose of  effecting the Merger. It has no material
assets and has  not engaged  in any activities  except in  connection with  such
proposed acquisition.
 
    Merger  Sub's principal executive offices are located at 99 Railroad Station
Plaza, Hicksville, New York 11801, and its telephone number is (516) 938-2016.
 
                                     AMSERV
 
    AMSERV was originally  incorporated under the  name of Phone-A-Gram  System,
Inc.  in  the  State  of  California  on  July  7,  1966,  and  was subsequently
reincorporated under the laws of the State of Delaware on September 29, 1983. On
October 2, 1987, AMSERV's name  was changed to AMSERV,  INC., and on August  24,
1992, its name was again changed to AMSERV HEALTHCARE INC.
 
                                       2
<PAGE>
    AMSERV operates in a one-industry segment as a health care services company.
During  the fiscal year ended June 24,  1995, AMSERV provided Home Care services
to individuals from its  six branch offices  in New Jersey  and Ohio. Home  Care
services  provided by AMSERV include personal  care, such as assistance with the
activities of daily  living (E.G.,  eating, walking and  grooming), and  skilled
nursing   services,  such  as  wound  care,  and  assistance  with  medications,
injections and  patient  education. Fiscal  1995  was  the first  full  year  of
operations for AMSERV's Ohio office, which was acquired on June 10, 1994, by the
purchase  of  substantially all  of  the assets  and  property of  North Central
Personnel, Inc. On November 9, 1994, AMSERV sold substantially all of the  fixed
and  intangible  assets  of its  eight  branch offices  that  provided primarily
temporary nursing services.
 
    AMSERV receives payment  for its  Home Care services  from several  sources.
Revenues   from  Medicaid  and  other   local  government  programs  represented
approximately 75% of  net sales from  continuing operations in  the fiscal  year
ended  June 24, 1995.  The balance is  paid to AMSERV  from insurance companies,
private payors and others.
 
    Home Care  services are  marketed through  referrals from  public  agencies,
hospitals, nursing homes and insurance companies. Both non-licensed and licensed
personnel  provide services to  individuals in their  homes. Home Care personnel
are recruited by AMSERV through newspaper advertisements and personal referrals.
 
    AMSERV's principal executive offices are located at 3252 Holiday Court,  No.
204, La Jolla, California 92037, and its telephone number is (619) 597-1000.
 
THE MEETINGS
 
THE AMSERV MEETING
 
    The  AMSERV Meeting will  be held on  Friday, August 23,  1996 at 9:30 a.m.,
local time,  at the  Radisson Hotel  La  Jolla, 3299  Holiday Court,  La  Jolla,
California.  At the AMSERV Meeting,  including any adjournments or postponements
thereof, the shareholders of AMSERV will consider and vote on (i) a proposal  to
approve  and  adopt  the  Merger  Agreement  and  the  transactions contemplated
thereby, (ii) the election of five members  of the AMSERV Board of Directors  to
serve  until the earlier of (a) AMSERV's next Annual Meeting of Shareholders and
until the  election and  qualification  of their  respective successors  or  (b)
consummation of the Merger, (iii) a proposal to ratify and approve the selection
of  Ernst & Young LLP as AMSERV's  independent public accountants for the fiscal
year ended June  29, 1996  and (iv)  such other  business as  properly may  come
before the AMSERV Meeting.
 
    The  close of business on  July 15, 1996, has been  fixed as the record date
(the "AMSERV Record Date") for the  determination of the shareholders of  AMSERV
entitled  to notice  of and  to vote  at the  AMSERV Meeting.  Holders of AMSERV
Common Stock  and holders  of outstanding  shares of  AMSERV Class  B  Preferred
Stock,  par value $.01 per  share (the "AMSERV Class  B Preferred," and together
with the AMSERV  Common Stock, the  "AMSERV Voting Stock")  are entitled to  one
vote  for each  share of  AMSERV Voting  Stock held  by them.  The holders  of a
majority of the  outstanding shares of  AMSERV Voting Stock,  present either  in
person  or by properly executed proxies, will  constitute a quorum at the AMSERV
Meeting.
 
    The affirmative vote of holders of  a majority of the outstanding shares  of
AMSERV  Voting Stock entitled to  vote thereon is required  to approve and adopt
the Merger Agreement.  The affirmative  vote of  a majority  of the  outstanding
shares of AMSERV Voting Stock present at the AMSERV Meeting, either in person or
by  properly executed proxies,  and entitled to  vote is required  to elect each
member of the AMSERV Board of Directors and to ratify the selection of  AMSERV's
independent  public accountants. As of the  AMSERV Record Date, 3,436,024 shares
of AMSERV Voting Stock were issued  and outstanding, of which approximately  22%
were  beneficially  owned by  directors,  executive officers  and  affiliates of
AMSERV (excluding 72,316 shares which may  be acquired upon exercise of  options
which are exercisable within 60 days of the AMSERV Record Date). See "THE AMSERV
MEETING -- Vote Required."
 
                                       3
<PAGE>
THE STAR MEETING
 
    The  STAR Meeting  will be held  on Friday,  August 23, 1996  at 12:30 p.m.,
local time, at the offices of Parker  Chapin Flattau & Klimpl, LLP, 1211  Avenue
of the Americas (18th Floor), New York, New York. At the STAR Meeting, including
any  adjournments  or  postponements  thereof,  the  shareholders  of  STAR will
consider and vote on a  proposal to approve and  adopt the Merger Agreement  and
the  transactions contemplated thereby, and such  other business as properly may
come before the STAR Meeting. A vote in favor of the Merger will also constitute
a vote in favor  of STAR's assumption  of the AMSERV Stock  Option Plan and  the
outstanding  options thereunder.  The Merger Agreement  provides that  as of the
effective time of  the Merger, Merger  Sub, a wholly-owned  subsidiary of  STAR,
will   be  merged  with  and  into  AMSERV,  with  AMSERV  being  the  surviving
corporation, whereupon AMSERV will become a wholly-owned subsidiary of STAR.
 
    The close of business on  July 15, 1996, has been  fixed as the record  date
(the  "STAR  Record Date")  for the  determination of  the shareholders  of STAR
entitled to notice of and  to vote at the STAR  Meeting. Holders of STAR  Common
Stock are entitled to one vote for each share of STAR Common Stock held by them.
The  holders  of a  majority of  the  outstanding shares  of STAR  Common Stock,
present either in  person or  by properly  executed proxies,  will constitute  a
quorum at the STAR Meeting.
 
    The  affirmative vote  of the holders  of a  majority of the  shares of STAR
Common Stock voted  at the STAR  Meeting is  required to approve  and adopt  the
Merger  Agreement. As of the  STAR Record Date, 2,463,079  shares of STAR Common
Stock  were  issued   and  outstanding,  of   which  approximately  40.5%   were
beneficially  owned  by directors,  executive  officers and  affiliates  of STAR
(excluding 181,986 shares which may be  acquired upon exercise of options  which
are  exercisable within 60 days of the  STAR Record Date). See "THE STAR MEETING
- -- Vote Required."
 
THE MERGER
 
    CONVERSION  OF   SECURITIES.     Upon  consummation   of  the   transactions
contemplated  by the Merger Agreement,  Merger Sub will be  merged with and into
AMSERV, with AMSERV being  the surviving corporation, and  each share of  AMSERV
Common  Stock outstanding  immediately prior to  the consummation  of the Merger
will be converted into the right to  receive 0.4090 shares of STAR Common  Stock
and  all AMSERV Options (as defined below) will be assumed by STAR and converted
into options  exercisable for  STAR Common  Stock based  on the  Exchange  Ratio
(collectively,  the "Merger Consideration"). STAR Common  Stock is quoted on the
Nasdaq National  Market  under  the  symbol "SMCS."  No  certificates  or  scrip
representing  fractional  shares of  STAR  Common Stock  will  be issued  in the
Merger, but cash will be paid to  shareholders in lieu thereof. See "THE  MERGER
AGREEMENT -- Conversion of Securities."
 
    RECOMMENDATIONS  OF THE BOARDS OF DIRECTORS.   The AMSERV Board of Directors
believes that the terms of the Merger are fair to, and in the best interests of,
AMSERV and  its  shareholders.  Accordingly, AMSERV's  Board  of  Directors  has
approved the Merger Agreement and unanimously recommends a vote FOR approval and
adoption of the Merger Agreement by the shareholders of AMSERV. The AMSERV Board
of  Directors  considered a  number of  positive,  negative and  neutral factors
concerning the Merger. The positive factors the AMSERV Board considered included
the AMSERV  Board's  determination that  the  consideration to  be  received  by
AMSERV's  shareholders  in  the  Merger reflected  an  appropriate  valuation of
AMSERV; the  ability of  the combined  company to  better compete  in a  rapidly
consolidating  health care industry; a review  of the possible alternatives to a
sale of  AMSERV; that  the  AMSERV Board  approved  the Merger  Agreement  after
significant  publicity concerning AMSERV's review of its strategic alternatives;
that AMSERV had  contact with a  large number  of bidders in  a lengthy  auction
process;  that the Merger Consideration represented  a premium for AMSERV Common
Stock on the last trading day prior to the public announcement of the letter  of
intent to merge and the last trading day prior to the public announcement of the
execution  of the Merger Agreement; the AMSERV Board's determination that STAR's
proposal included  a premium  for  obtaining control  of AMSERV;  the  financial
presentation  of  AMSERV's financial  advisor and  the  advisor's opinion  as of
February 9, 1996 that the  terms of the Merger are  fair to the shareholders  of
AMSERV  from a financial point of view; that the Merger Agreement permits AMSERV
to
 
                                       4
<PAGE>
consider unsolicited  third party  offers  to acquire  AMSERV; that  the  Merger
Agreement  permits  the AMSERV  Board to  modify  its fairness  determination if
required by the AMSERV Board's fiduciary duties; that consummation of the Merger
is conditioned  on  the  Merger's  qualifying as  a  pooling  of  interests  for
accounting  purposes; that  the Merger Agreement  was approved  by the unanimous
vote of the AMSERV Board (other than Mr. Mora, who did not vote on the  Original
Merger  Agreement,  as hereinafter  defined,  or the  Amendment,  as hereinafter
defined, due to the expected assumption by  STAR of the provisions set forth  in
Mr.  Mora's  employment agreements,  and Mr.  Katten,  who did  not vote  on the
Amendment due  to his  expected position  as a  director of  STAR following  the
Merger);  that STAR is a public  company that has experienced substantial growth
in revenues and income and has a management team with a proven track record; the
synergies and costs savings  offered by the  consolidation of certain  corporate
functions;  the expectation  that AMSERV  shareholders will  receive STAR Common
Stock in a transaction that is  nontaxable for federal income tax purposes;  and
that  Mr. Sternbach has agreed to vote the  shares of STAR Common Stock of which
he is the direct beneficial owner in  favor of the Merger. The negative  factors
considered  by  the AMSERV  Board were  that AMSERV's  financial advisor  is not
required to reaffirm its  fairness opinion at any  time after February 9,  1996;
that  the  Merger  Agreement  places restrictions  on  the  conduct  of AMSERV's
business pending the  closing and requires  AMSERV to pay  significant fees  and
expenses  in the event of a termination of the Merger Agreement; that the Merger
Agreement prohibits  AMSERV  from  soliciting,  encouraging  or  initiating  any
additional  proposals from third  parties; and the  risks to AMSERV shareholders
described under the heading "RISK FACTORS." The AMSERV Board determined that the
following factors were neither positive nor  negative: that, as a result of  the
fixed  Exchange Ratio, changes in  the relative share prices  of AMSERV and STAR
Common Stock could materially affect, positively or negatively, the value of the
Merger Consideration  to  be  received  by  AMSERV  shareholders;  the  possible
conflicts  of interest  based on  the expected  equity participation  in STAR of
certain directors and officers of AMSERV  and Mr. Mora's expected position as  a
director  of  STAR  following  the Merger  (although  the  Merger  Agreement, as
amended, now  provides that  Mr. Katten,  instead of  Mr. Mora,  would become  a
director  of STAR following the Merger); and that the AMSERV Board did not use a
special committee to  evaluate the  Merger. The primary  factors considered  and
conclusions reached and relied upon by the AMSERV Board of Directors in reaching
its  recommendation are described in greater detail in "THE MERGER -- Background
of the  Merger," "--  AMSERV's Reasons  for the  Merger; Recommendation  of  the
AMSERV  Board," "--  Financial Advisor; Fairness  Opinion" and  "-- Interests of
Certain Persons in the Merger; Conflicts of Interest."
 
    The Board of Directors  of STAR believes  that the terms  of the Merger  are
fair  to, and in the best interests  of, STAR and its shareholders. Accordingly,
STAR's Board  of Directors  has unanimously  approved the  Merger Agreement  and
unanimously  recommends a vote FOR approval and adoption of the Merger Agreement
by the shareholders of STAR. The STAR Board of Directors considered a number  of
positive  factors  concerning the  Merger, including  that  since both  STAR and
AMSERV are engaged in  the Home Care services  business, the businesses of  STAR
and  AMSERV are complimentary; its concurrence with STAR's management's analysis
that the  Merger  would  increase  STAR's cash  flow,  reduce  STAR's  financial
leverage   and  improve  STAR's  overall   financial  position  and  results  of
operations; that since AMSERV is also engaged in the Home Care services business
the Merger  fits  within STAR's  strategic  objective to  acquire  complimentary
businesses; that the Merger will permit STAR to achieve significant cost savings
and  economies  of  scale  and will  provide  other  synergistic  benefits; that
approximately $1.2 million in selling, general and administrative expenses would
be eliminated  as a  result of  increased efficiencies;  that the  terms of  the
Merger  Agreement  are  generally fair  to  the  shareholders of  STAR;  and its
conclusion that,  based  upon preliminary  discussions  with its  auditors,  the
Merger would be accounted for as a pooling of interests for accounting purposes.
The  Board of  Directors of  STAR also considered  a number  of negative factors
concerning the Merger, including the fact that a dissident shareholder group had
commenced a consent solicitation and certain litigation against AMSERV; the fact
that the Exchange Ratio was fixed; the factors described under the heading "RISK
FACTORS"; and the  fact that  STAR agreed  to honor  certain agreements  between
AMSERV  and Mr. Mora. The factors  considered and conclusions reached and relied
upon
 
                                       5
<PAGE>
by the STAR Board of Directors  in reaching its recommendation are described  in
greater  detail in "THE MERGER -- Background  of the Merger," "-- STAR's Reasons
for the Merger; Recommendation of the  STAR Board" and "-- Interests of  Certain
Persons in the Merger; Conflicts of Interest."
 
    OPINION  OF FINANCIAL ADVISOR.   Batchelder &  Partners, Inc. ("Batchelder")
delivered to the Board of Directors  of AMSERV a written opinion dated  February
9,  1996 that, as of such date and  based upon and subject to certain matters as
stated therein, the terms of the Merger  are fair to the shareholders of  AMSERV
from  a financial point of view. See  "THE MERGER -- Financial Advisor; Fairness
Opinion." The full text of the  written opinion of Batchelder, which sets  forth
the   assumptions  made,  matters  considered  and  limitations  on  the  review
undertaken by Batchelder, is attached as  Appendix B hereto and is  incorporated
herein by reference. AMSERV shareholders are urged to read the opinion carefully
in its entirety.
 
    EFFECTIVE  TIME OF THE MERGER.   The Merger will be  effected at the time of
the filing of  a Certificate of  Merger (the "Certificate  of Merger") with  the
Delaware  Secretary of State. The  date and time of  such filing (the "Effective
Time") is currently expected to occur on or shortly after the date of the AMSERV
Meeting and  the STAR  Meeting  and satisfaction  or  waiver of  the  conditions
precedent  to the  Merger set  forth in  the Merger  Agreement. See  "THE MERGER
AGREEMENT -- Effective Time of the Merger" and "-- Conditions of the Merger."
 
    CONDITIONS TO THE MERGER; TERMINATION.   The obligations of AMSERV and  STAR
to  consummate the Merger are subject to the satisfaction of certain conditions,
certain of  which may  be  waived by  the mutual  consent  of AMSERV  and  STAR,
including,  among others,  (i) obtaining  requisite AMSERV  and STAR shareholder
approvals and  requisite regulatory  approvals, (ii)  the effectiveness  of  the
Registration  Statement and the receipt by STAR of all necessary approvals under
applicable state securities laws, (iii) the absence of a material adverse change
in the  financials of  AMSERV, (v)  the receipt  by AMSERV  of a  legal  opinion
addressed  to the shareholders of  AMSERV from Latham &  Watkins with respect to
the tax  consequences of  the Merger  and  certain other  matters and  (vi)  the
receipt by STAR of a letter from Holtz Rubenstein & Co., LLP with respect to the
qualification  of the Merger  as a pooling  of interests. There  is currently no
intention on the part of  either AMSERV or STAR to  waive any of the  conditions
set out above, including without limitation, (v) and (vi). In the event that the
conditions  set forth above in (v) or (vi)  were to be waived, STAR would file a
post-effective amendment to the Registration Statement and both STAR and  AMSERV
would  resolicit  their  respective shareholders  regarding  their  approval and
adoption of the Merger Agreement. See "THE MERGER AGREEMENT -- Conditions of the
Merger."
 
    The Merger Agreement is subject to  termination by either AMSERV or STAR  if
the  Merger is not  consummated by September  15, 1996. In  addition, the Merger
Agreement may  be terminated  under certain  circumstances by  either AMSERV  or
STAR,  including circumstances  under which  STAR may  be entitled  to receive a
termination fee of $250,000, plus reasonable out-of-pocket fees and expenses  up
to  $200,000.  See  "THE MERGER  AGREEMENT  --  Termination" and  "--  Effect of
Termination and Abandonment."
 
    SURRENDER OF AMSERV COMMON  STOCK CERTIFICATES.   After the Effective  Time,
holders of AMSERV Common Stock will be furnished with a transmittal letter to be
used  to exchange  their certificates for  the Merger  Consideration. Holders of
AMSERV Common Stock should  not return any stock  certificates with the form  of
proxy  accompanying  this  Joint  Proxy  Statement/Prospectus.  See  "THE MERGER
AGREEMENT -- Exchange of Certificates."
 
    CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  Assuming the Merger is consummated
at the Effective Time pursuant  to the terms of  the Merger Agreement, Latham  &
Watkins  (counsel to AMSERV) is of the opinion (and, at the Effective Time, will
issue its  opinion  to  AMSERV) that  the  Merger  will qualify  as  a  tax-free
reorganization  under Section 368(a)(1) of the Internal Revenue Code of 1986, as
amended (the "Code") and that no gain  or loss will be recognized by any  holder
whose  shares of AMSERV Common  Stock (with the possible  exception of shares of
AMSERV Common Stock acquired  by a holder pursuant  to an employee stock  option
plan  or  other  compensation  agreement  in  anticipation  of  the  Merger) are
converted into and  exchanged for  shares of STAR  Common Stock  (except to  the
extent  of any cash received in lieu of fractional shares of STAR Common Stock).
 In  addition,  Latham  &   Watkins  is  of  the   opinion  that  as  a   result
 
                                       6
<PAGE>
of  the Merger: (i) each holder of AMSERV Common Stock receiving cash in lieu of
a fractional share of STAR Common Stock  will be treated for federal income  tax
purposes as having received such fractional share interest and as having sold it
for  the  cash received,  and  will recognize  capital  gain or  loss  (long- or
short-term depending on whether the holder's holding period is more or less than
12 months) equal to the difference between  the amount of cash received and  the
portion  of that  holder's basis  in the  shares of  AMSERV Common  Stock deemed
exchanged for the  fractional share  interest; (ii) the  tax basis  of the  STAR
Common Stock received by the holders of AMSERV Common Stock will be equal to the
basis  of  the AMSERV  Common  Stock exchanged  therefor  (except for  the basis
attributable to any fractional share interest  in STAR Common Stock); and  (iii)
the  holding period of the  STAR Common Stock received  by the holders of AMSERV
Common Stock  will  include  the  holding period  of  the  AMSERV  Common  Stock
surrendered  in exchange  therefor. Latham  & Watkins'  opinion is  based on the
accuracy of certain representations that it will receive from STAR and AMSERV at
the Effective Time. See "THE MERGER -- Certain Federal Income Tax  Consequences"
and "THE MERGER AGREEMENT -- Conditions of the Merger."
 
    ACCOUNTING  TREATMENT.  The  Merger is intended  to qualify as  a pooling of
interests for accounting and financial  reporting purposes. Consummation of  the
Merger  is conditioned upon STAR receiving a letter from Holtz Rubenstein & Co.,
LLP  (STAR's  auditors)  regarding  its  concurrence  with  STAR's  management's
conclusion  as to the appropriateness of pooling of interests accounting for the
Merger under Accounting Principles Board Opinion No. 16 if it is consummated  in
accordance  with the Merger Agreement. See  "THE MERGER -- Accounting Treatment"
and "THE MERGER AGREEMENT -- Conditions of the Merger."
 
    TREATMENT OF STOCK OPTIONS.  All options to purchase shares of AMSERV Common
Stock (individually, an "AMSERV Option" and collectively, the "AMSERV  Options")
outstanding  under AMSERV's  1991 Stock  Option Plan  (the "AMSERV  Stock Option
Plan"), granted on  or prior  to the Effective  Time, whether  or not  currently
exercisable,  will become exercisable  immediately prior to  the Effective Time,
will remain outstanding and  will be assumed by  STAR. Thereafter, the  material
terms  and conditions pursuant to which such options will be exercisable will be
the same  as  under the  AMSERV  Stock Option  Plan  and the  applicable  option
agreement issued thereunder, except that (i) the number of shares of STAR Common
Stock subject to each AMSERV Option will be determined by multiplying the number
of  shares of AMSERV Common Stock subject to the AMSERV Option immediately prior
to the Effective  Time by the  Exchange Ratio  and (ii) the  per share  exercise
price  will be  determined by  dividing the per  share exercise  price in effect
immediately prior to the Effective Time under the AMSERV Option by the  Exchange
Ratio.  As of July 17, 1996, options  to acquire 228,266 shares of AMSERV Common
Stock were  outstanding under  the AMSERV  Stock Option  Plan. Approval  of  the
Merger  Agreement  by  the  shareholders  of  STAR  will  constitute shareholder
approval of the assumption  by STAR of  the AMSERV Stock  Option Plan. See  "THE
MERGER AGREEMENT -- Treatment of Stock Options."
 
    AMSERV  CLASS B  PREFERRED.  The  Merger Agreement provides  that the AMSERV
Class B Preferred shall not be  converted into any other security in  connection
with  the  Merger. Pursuant  to the  terms of  the Certificate  of Designations,
Preferences  and  Rights  of  the  AMSERV  Class  B  Preferred  (the  "Class   B
Certificate"),  upon a  change in  control of  AMSERV (such  as the  Merger) any
holder of AMSERV  Class B  Preferred then  outstanding may  request that  AMSERV
redeem  all,  but not  less  than all,  of  the AMSERV  Class  B Preferred  at a
redemption price  of $2.625  per share  in cash  (the "Redemption  Price").  The
Redemption  Price with respect to the 130,071 shares of AMSERV Class B Preferred
currently outstanding totals $341,436  in the aggregate. Following  consummation
of  the Merger, STAR will  become obligated to pay such  amount in the event any
holder of AMSERV Class B Preferred exercises its redemption rights. STAR expects
that the cash and  cash equivalents of  AMSERV will be  sufficient to meet  this
obligation, when it arises.
 
    The  Class B Certificate  also provides that  AMSERV may at  any time redeem
all, but  not  less than  all,  of the  outstanding  shares of  AMSERV  Class  B
Preferred  at the Redemption  Price. Pursuant to  the Merger Agreement, however,
AMSERV has agreed that it will not redeem, retire or purchase such shares except
as required by the Class B  Certificate. See "THE MERGER AGREEMENT --  Treatment
of AMSERV
 
                                       7
<PAGE>
Class  B  Preferred." It  is the  intention  of the  parties that  following the
approval of the Merger  by the respective shareholders  of STAR and AMSERV,  but
prior  to  consummation  of the  Merger,  STAR  will waive  this  restriction on
redemption  of  the  AMSERV  Class  B  Preferred  and  AMSERV  will  redeem  all
outstanding shares of the AMSERV Class B Preferred.
 
    EMPLOYMENT  AGREEMENTS.   STAR  has agreed  to honor  the provisions  of the
employment agreement dated  February 27, 1987,  as amended August  8, 1989  (the
"Mora  Employment  Agreement"), and  the consulting  agreement dated  August 23,
1990, as amended August 15, 1991 (the "Mora Consulting Agreement," and  together
with  the Mora Employment Agreement, the "Mora Agreements"), both between AMSERV
and Eugene J. Mora. Pursuant  to the Mora Employment  Agreement, if Mr. Mora  is
terminated   without  cause,  AMSERV  is  obligated  to  pay  to  Mr.  Mora  the
compensation he  earned in  the final  year of  his employment  in each  of  the
immediately  following five years  and transfer to Mr.  Mora any individual life
insurance policies  owned by  AMSERV. In  fiscal 1995,  Mr. Mora's  compensation
totaled approximately $300,000. See "EXECUTIVE COMPENSATION OF AMSERV." Assuming
Mr.  Mora is terminated  without cause and receives  compensation of $300,000 in
the final  year  of  his employment,  Mr.  Mora  would be  entitled  to  receive
$1,500,000  in the aggregate over the immediately following five years under the
Mora Employment Agreement (excluding the value of any individual life  insurance
policies  transferred to Mr. Mora). In the  event that such payments are made by
STAR pursuant to the Mora Employment  Agreement, there can be no assurance  that
such  payments will be  deductible for income  tax purposes for  the full amount
thereof. In addition, the Mora Consulting Agreement provides that Mr. Mora  will
be  retained as a consultant  to AMSERV for the  two years immediately following
termination of his  employment for which  he will receive  $129,200 per year  in
compensation.  The Merger  Agreement provides  that the  parties understand that
STAR and Mr. Mora will be discussing possible modifications or amendments to the
Mora Agreements. Such modifications or amendments to the Mora Agreements may not
be entered into, however, without the  mutual agreement of STAR, AMSERV and  Mr.
Mora  and  unless  such modifications  or  amendments would  not  jeopardize the
ability of the parties to  treat the Merger as a  tax free reorganization or  to
utilize pooling of interests accounting for accounting purposes. See "THE MERGER
- -- Interests of Certain Persons in the Merger; Conflicts of Interest."
 
    Leslie  Hodge, Secretary and Vice President -- Administration of AMSERV, and
Lori Anderson, Treasurer  and Controller  of AMSERV, are  parties to  employment
agreements with AMSERV which contain severance provisions under which the Merger
would constitute a "board approved change in control." As a result, if within 24
months following the consummation of the Merger, Ms. Hodge is terminated without
cause  or  Ms. Hodge  terminates her  employment for  good reason,  the combined
company will be obligated to (i) pay to Ms. Hodge a lump sum payment equal to 12
months of the highest monthly  base salary received by Ms.  Hodge in any one  of
the  past 60 months  and (ii) continue Ms.  Hodge's benefits for  a period of 12
months. Similarly, if within 24 months following the consummation of the Merger,
Ms. Anderson  is  terminated  without  cause  or  Ms.  Anderson  terminates  her
employment for good reason, the combined company will be obligated to (a) pay to
Ms.  Anderson a lump sum payment equal to six months of the highest monthly base
salary received  by Ms.  Anderson in  any  one of  the past  60 months  and  (b)
continue  Ms. Anderson's benefits for a period  of six months. Using the highest
monthly base salaries received by each of Ms. Hodge and Ms. Anderson during  the
last  60  months, Ms.  Hodge  and Ms.  Anderson would  be  entitled to  lump sum
payments of $69,000 and $23,568, respectively, upon termination without cause or
termination by either of them for good  reason. See "THE MERGER -- Interests  of
Certain Persons in the Merger; Conflicts of Interest."
 
    INTERESTS  OF  CERTAIN PERSONS  IN THE  MERGER; CONFLICTS  OF INTEREST.   In
considering the recommendation of the Board of Directors of AMSERV and the Board
of Directors of STAR with respect  to the Merger Agreement and the  transactions
contemplated  thereby,  shareholders should  be  aware that  certain  members of
AMSERV's management and AMSERV's Board have interests in the Merger that are  in
addition  to and may conflict  with the interests of  shareholders of AMSERV and
STAR generally. The Boards of Directors of  AMSERV and STAR were aware of  these
interests   and   considered   them,   among   other   factors,   in   approving
 
                                       8
<PAGE>
the Merger Agreement and the transactions contemplated thereby. See "THE  MERGER
- --  Interests of Certain Persons in the  Merger; Conflicts of Interest" and "THE
MERGER AGREEMENT -- Treatment of Stock Options."
 
    Following the  Merger, AMSERV's  Board  of Directors  would be  filled  with
STAR's  designees. The  Merger Agreement,  as amended,  provides that  after the
Merger is effected, Melvin L. Katten, a director of AMSERV, will be appointed to
the Board of Directors of STAR. AMSERV does not anticipate that any officers  or
directors  of AMSERV, other than Mr.  Katten, would become officers or directors
of STAR or the surviving entity. See "THE MERGER -- Interest of Certain  Persons
in  the Merger; Conflicts  of Interest" and "THE  MERGER AGREEMENT -- Management
after the Merger."
 
    Under the Merger  Agreement, STAR  has agreed  to honor  the provisions  set
forth  in employment agreements to which AMSERV  is a party. See "SUMMARY -- The
Merger --  Employment  Agreements"  and "EXECUTIVE  COMPENSATION  OF  AMSERV  --
Employment Agreements." Using Mr. Mora's base salary for 1995, Mr. Mora would be
entitled under the Mora Employment Agreement to receive approximately $1,500,000
in  the  aggregate over  the five  years  immediately following  his termination
without cause. In addition, the Mora Consulting Agreement calls for Mr. Mora  to
receive  $129,200 per year in compensation as a consultant to AMSERV for the two
years immediately following  termination of  his employment.  Using the  highest
monthly  base salary received by  each of Ms. Hodge  and Ms. Anderson during the
last 60  months,  Ms. Hodge  and  Ms. Anderson  would  be entitled  under  their
employment  contracts to lump sum payments of $69,000 and $23,568, respectively,
upon termination without cause  or if either of  them terminates her  employment
for good reason.
 
    Pursuant  to the AMSERV Stock Option Plan  and under the terms of the Merger
Agreement, all  outstanding AMSERV  Options, whether  or not  exercisable,  will
become  exercisable  immediately  prior  to  the  Effective  Time,  will  remain
outstanding and will  be assumed by  STAR. As  of July 17,  1996, directors  and
executive officers of AMSERV held, in the aggregate, non-qualified stock options
granted  pursuant to the AMSERV  Stock Option Plan to  purchase 87,691 shares of
AMSERV Common Stock at exercise prices  ranging from $1.00 to $3.125 per  share.
The  AMSERV directors, including Mr. Mora,  Mr. Katten, Mr. Robinton, Mr. Rogers
and Mr. Spinelli, held options to  purchase 35,000, 12,615, 12,615, 10,961,  and
1,500  shares of AMSERV  Common Stock, respectively. In  addition, Ms. Hodge and
Ms. Anderson held options to purchase  5,000 and 10,000 shares of AMSERV  Common
Stock,  respectively. See "SUMMARY -- The Merger -- Treatment of Stock Options,"
"THE MERGER -- Interest of Certain Persons in the Merger; Conflicts of Interest"
and "THE MERGER AGREEMENT -- Treatment of Stock Options."
 
    Under the  terms of  the Merger  Agreement, STAR  has agreed  to insure  and
guaranty  that any provision  with respect to indemnification  by AMSERV and its
subsidiaries existing  in favor  of  any present  or former  director,  officer,
employee  or  agent  of  AMSERV  or  an  AMSERV  subsidiary,  set  forth  in the
Certificate of  Incorporation  or by-laws  of  AMSERV and  its  subsidiaries  or
pursuant  to any other  agreements (including insurance  policies), will survive
the Merger, will not be amended, repealed  or modified in any manner that  would
adversely  affect  an indemnified  party, and  will continue  in full  force and
effect for a period of at least six years from the effectiveness of the  Merger.
STAR  has agreed to maintain  or retain the same  level of insurance coverage as
currently maintained by AMSERV only (i) if it is available for an annual premium
not in excess of 125%  of the last annual premium  paid by AMSERV or the  AMSERV
subsidiaries  prior to the date of the  Merger Agreement, and (ii) for six years
after the Effective Time. If such insurance were not available for 125% or  less
of  the amount  of the last  annual premium  paid by AMSERV  or its subsidiaries
prior to the date of the Merger  Agreement, STAR would be obligated to  purchase
as  much coverage  as possible  for an  amount not  to exceed  125% of  the last
premium paid AMSERV or its subsidiaries. See "THE MERGER -- Interests of Certain
Persons in the Merger; Conflicts of Interest."
 
    VOTING  AGREEMENT.    Stephen  Sternbach,  Chairman,  President  and   Chief
Executive  Officer of  STAR and  the direct  beneficial owner  of 847,155 shares
(34.4%) of STAR Common Stock, entered into an agreement (the "Voting Agreement")
pursuant to which he agreed to vote (or  cause to be voted) his shares in  favor
of  the Merger, the execution  and delivery by STAR  of the Merger Agreement and
the approval of the terms thereof and each of the other actions contemplated  by
the Merger Agreement and the Voting Agreement. In
 
                                       9
<PAGE>
addition,  Mr.  Sternbach granted  to  AMSERV and  the  Secretary and  the Chief
Financial Officer  of AMSERV  an irrevocable  proxy to  vote his  shares in  the
manner described above. See "THE STAR MEETING -- Voting Agreement."
 
    DISSENTERS'  RIGHTS.   Under  the General  Corporation Law  of the  State of
Delaware (the  "DGCL"), holders  of  AMSERV Common  Stock  are not  entitled  to
dissenters'  rights of appraisal  in connection with the  Merger, because at the
AMSERV Record  Date, shares  of STAR  Common  Stock were  quoted on  the  Nasdaq
National  Market.  The  STAR Common  Stock  is  currently quoted  on  the Nasdaq
National Market. See "THE MERGER -- No Dissenters' Rights of Appraisal."
 
    RESALES OF STAR COMMON STOCK.  The shares of STAR Common Stock to be  issued
pursuant  to the Merger Agreement have been registered under the Securities Act,
and therefore may be resold without restriction by persons who are not deemed to
be "affiliates" (as  such term is  defined under the  Securities Act) of  either
STAR or AMSERV. See "THE MERGER -- Resale Restrictions."
 
    RISK  FACTORS.   There are a  number of  risks relating to  an investment in
STAR, including those relating to: (i)  STAR's liquidity and possible cash  flow
difficulties;  (ii) adverse  effects of possible  health care  reform; (iii) the
regulatory environment in  which the  parties operate; (iv)  competition in  the
home  health care and  temporary health care personnel  placement markets; (v) a
shortage of  qualified  personnel;  (vi)  government  regulation  and  licensing
regulations  relative  to  STAR's  business;  (vi)  certain  proposals  by state
legislatures  and  Congress  to  contain  health  care  costs;  (vii)  potential
liability  for services provided by STAR; and  (viii) STAR's failure to pay cash
dividends since 1991. In addition, there are  a number of risks relating to  the
Merger,  including those  relating to: (i)  no assurance  that shareholders will
realize any benefits from the Merger; (ii) the existence of special interests of
certain persons in the Merger and conflicts of interest; (iii) the fact that Mr.
Sternbach will continue to have substantial influence on STAR after the  Merger;
(iv) the lack of an updated fairness opinion by the financial advisor of AMSERV;
(v)  the fixed  nature of the  Exchange Ratio;  (vi) the dilutive  effect of the
Merger on the voting  power of the  shareholders of AMSERV  and STAR; (vii)  the
fact  that a  significant portion  of STAR's revenues  are subject  to audit and
adjustment;  and  (viii)  the  possible   adverse  tax  effect  on  the   AMSERV
shareholders if the Merger were not to constitute a tax-free reorganization. See
"RISK  FACTORS" for a  more complete discussion  of the factors  which should be
considered in evaluating the Merger and the securities offered hereby.
 
ELECTION OF AMSERV DIRECTORS
 
    At the  AMSERV Meeting,  five directors  are to  be elected.  The  following
individuals, each of whom is currently a director of AMSERV, have been nominated
for election to the AMSERV Board of Directors: Eugene J. Mora, Melvin L. Katten,
Michael  A. Robinton, George A. Rogers and Ben L. Spinelli. If the Merger is not
consummated, the directors elected  at the AMSERV Meeting  will serve until  the
next  Annual Meeting of Shareholders and  until their respective successors have
been duly elected and qualified. If the Merger Agreement is approved and adopted
at each of the AMSERV  Meeting and STAR Meeting  and the Merger is  consummated,
the  directors  elected  at  the  AMSERV Meeting  will  hold  office  only until
consummation of  the Merger  and, in  accordance with  the terms  of the  Merger
Agreement,  the  directors of  Merger  Sub would  then  become the  directors of
AMSERV. See "ELECTION OF AMSERV DIRECTORS."
 
RATIFICATION OF APPOINTMENT OF INDEPENDENT PUBLIC ACCOUNTANTS OF AMSERV
 
    AMSERV shareholders will further be asked to ratify the selection of Ernst &
Young LLP as AMSERV's  independent auditors for the  fiscal year ended June  29,
1996.  See  "RATIFICATION OF  APPOINTMENT OF  INDEPENDENT PUBLIC  ACCOUNTANTS OF
AMSERV."
 
                                       10
<PAGE>
SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA
 
    The respective summary historical  data presented in  the tables below  have
been  derived from AMSERV's Consolidated  Financial Statements and notes thereto
and STAR's  Consolidated Financial  Statements and  the notes  thereto  included
elsewhere herein and should be read in conjunction therewith. See "AMSERV'S" and
"STAR'S  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS."
 
    Data for AMSERV for the nine months ended March 31, 1995 and March 23,  1996
have   been  derived  from  unaudited  consolidated  financial  statements.  The
unaudited financial statements of AMSERV  include all adjustments consisting  of
normal  accruals that AMSERV considers necessary  for a fair presentation of the
financial position  and  results  of operations  for  those  periods.  Operating
results  for the nine months ended March 23, 1996 are not necessarily indicative
of the results that may be expected for the entire year ended June 29, 1996.
 
    Data for STAR for the nine months  ended February 28, 1995 and February  29,
1996  have been  derived from  unaudited consolidated  financial statements. The
unaudited financial statements  of STAR  include all  adjustments consisting  of
normal  accruals that STAR  considered necessary for a  fair presentation of the
financial position  and  results  of operations  for  those  periods.  Operating
results  for  the  nine  months  ended February  29,  1996  are  not necessarily
indicative of the results that may be expected for the entire year ended May 31,
1996.
 
                                       11
<PAGE>
AMSERV SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA
<TABLE>
<CAPTION>
                                                                                                        NINE MONTHS ENDED
                                                                YEARS ENDED                          ------------------------
                                        -----------------------------------------------------------
                                                                       JUNE 30,                       MARCH 23,    MARCH 31,
                                        JUNE 24,   ------------------------------------------------  -----------  -----------
                                          1995     1994 (1)      1993         1992       1991 (2)       1996         1995
                                        ---------  ---------  -----------  -----------  -----------  -----------  -----------
<S>                                     <C>        <C>        <C>          <C>          <C>          <C>          <C>
                                                         (IN THOUSANDS EXCEPT RATIOS AND PER SHARE AMOUNTS)
STATEMENTS OF OPERATIONS DATA
Operating Revenue.....................  $  11,342  $   7,526   $   6,049    $   5,432    $   1,362    $   9,118    $   8,403
Income (Loss) from Continuing
 Operations...........................         52        (63)        (71)         (48)        (134)         342          225
Income (Loss) from Discontinued
 Operations...........................     --           (711)       (359)         290        1,124       --           --
Gain (Loss) on Disposal of
 Discontinued Operations..............         30     (1,168)     --            1,405       --           --              169
Cumulative Effect of Change in
 Accounting Principle.................         24     --          --           --           --           --           --
Net Income (Loss).....................  $     106  $  (1,942)  $    (430)   $   1,647    $     990    $     342    $     394
INCOME (LOSS) PER SHARE
Income (Loss) from Continuing
 Operations...........................  $     .02  $    (.02)  $    (.03)   $    (.01)   $    (.04)   $     .10    $     .07
Income (Loss) from Discontinued
 Operations...........................     --           (.24)       (.12)         .09          .35       --           --
Gain (Loss) on Disposal of
 Discontinued Operations..............        .01       (.40)     --              .45       --           --              .05
Cumulative Effect of Change in
 Accounting Principle.................     --         --          --           --           --           --           --
Net Income (Loss).....................  $     .03  $    (.66)  $    (.15)   $     .53    $     .31    $     .10    $     .12
Shares Used in Computing Per Share
 Amounts..............................      3,112      2,945       2,961        3,092        3,160        3,269        3,133
 
<CAPTION>
 
                                        JUNE 24,   JUNE 30,    JUNE 30,     JUNE 30,     JUNE 30,     MARCH 23,    MARCH 31,
                                          1995       1994        1993         1992         1991         1996         1995
                                        ---------  ---------  -----------  -----------  -----------  -----------  -----------
                                                                    (IN THOUSANDS EXCEPT RATIOS)
<S>                                     <C>        <C>        <C>          <C>          <C>          <C>          <C>
BALANCE SHEET DATA
Working Capital.......................  $   2,466  $   2,569   $   3,471    $   4,792    $   3,095    $   2,931    $   2,858
Total Assets..........................      6,684      6,558       7,427        8,858        7,508        6,833        6,561
Total Long-Term Liabilities...........         31        832         115          745        1,064           33          659
Redeemable Preferred Stock............        683     --          --           --           --              512       --
Shareholders' Equity..................      4,657      4,348       6,290        6,699        5,016        5,098        4,742
Current Ratio.........................        2.9        2.9         4.4          4.4          3.2          3.5          3.5
</TABLE>
 
- ------------------------
(1) In June 1994,  AMSERV acquired  certain assets of  North Central  Personnel,
    Inc. in a transaction accounted for as a purchase.
 
(2) In  March 1991, AMSERV acquired certain assets of Always Care of New Jersey,
    Inc. in a transaction accounted for as a purchase.
 
                                       12
<PAGE>
STAR SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA
<TABLE>
<CAPTION>
                                                            YEARS ENDED                           NINE MONTHS ENDED
                                    -----------------------------------------------------------  --------------------
                                                              MAY 31,                            FEB. 29,   FEB. 28,
                                    -----------------------------------------------------------  ---------  ---------
                                    1995 (1)     1994 (2)     1993 (3)   1992 (4)      1991        1996       1995
                                    ---------  -------------  ---------  ---------  -----------  ---------  ---------
<S>                                 <C>        <C>            <C>        <C>        <C>          <C>        <C>
                                                   (IN THOUSANDS EXCEPT RATIOS AND PER SHARE AMOUNTS)
STATEMENT OF OPERATIONS DATA
Net revenues......................  $  27,088  $      22,168  $  17,380  $   8,678   $   7,013   $  26,468  $  19,685
Income from operations............      1,238            745        335        156         791       1,473        864
Interest (expense) income, net....        (63)          (13)         43         63         (68)       (203)       (44)
Income from continuing
 operations.......................        706            421        206        103         123         750        467
Cumulative effect of change in
 accounting principle.............     --             65 (5)     --         --          --          --         --
Net income........................  $     706  $         486  $     206  $     103   $     123   $     750  $     467
 
INCOME PER SHARE
Income from continuing
 operations.......................  $     .28  $         .18  $     .09  $     .04   $     .10   $     .28  $     .20
Cumulative effect of change in
 accounting principle.............     --                .03     --         --          --          --         --
Net income........................  $     .28  $         .21  $     .09  $     .04   $     .10   $     .28  $     .20
Shares used in computing per share
 amounts..........................      2,526          2,325      2,410      2,433       1,199       2,704      2,282
 
<CAPTION>
 
                                     MAY 31,                   MAY 31,    MAY 31,     MAY 31,    FEB. 29,   FEB. 28,
                                      1995     MAY 31, 1994     1993       1992        1991        1996       1995
                                    ---------  -------------  ---------  ---------  -----------  ---------  ---------
                                                              (IN THOUSANDS EXCEPT RATIOS)
<S>                                 <C>        <C>            <C>        <C>        <C>          <C>        <C>
BALANCE SHEET DATA
Cash and cash equivalents.........  $     270  $         425  $   1,126  $     372   $   2,482   $      60  $      91
Working capital...................      4,307          2,956      3,180      3,109       3,856       6,564      3,600
Total assets......................     10,114          7,638      6,009      6,009       4,980      12,268      8,330
Long-term obligations.............      2,125       --           --         --          --           3,531     --
Shareholders' equity..............      5,965          5,229      4,911      4,705       4,030       6,733      5,700
Current ratio.....................        3.1            2.2        3.9        3.4         5.1         4.3        2.4
</TABLE>
 
- ------------------------
(1) In May 1995, STAR acquired certain  assets of Long Island Nursing  Registry,
    Inc. in a transaction accounted for as a purchase.
 
(2) In  November 1993, STAR acquired certain assets of DSI Health Care Services,
    Inc. in a transaction accounted for as a purchase.
 
(3) In August  1992,  STAR  acquired  certain assets  of  Unity  Care  Services,
    Inc.-New  York  Medicaid  Operations in  a  transaction accounted  for  as a
    purchase.
 
(4) In May  1992,  STAR acquired  certain  assets of  Unity  Healthcare  Holding
    Company, Inc., Unity Care Services, Inc.-New York Operations, and Unity Home
    Care of Florida, Inc. in a transaction accounted for as a purchase.
 
(5) Effective June 1, 1993, STAR adopted FASB Statement No. 109, "Accounting for
    Income  Taxes."  See  Note  12 of  STAR's  Notes  to  Consolidated Financial
    Statements.
 
                                       13
<PAGE>
SUMMARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA
 
    The following table presents summary unaudited pro forma selected operations
data for the years  ended May 31, 1994  and 1995 and for  the nine months  ended
February  28, 1995  and February  29, 1996. The  income statement  data has been
prepared as  if  the Merger  and  the  other transactions  requiring  pro  forma
adjustments  had occurred  on June  1, 1993  assuming that  the Merger  had been
consummated  and  accounted  for  using  the  pooling  of  interests  method  of
accounting.  The balance  sheet data has  been prepared assuming  the Merger had
been consummated on February 29, 1996.
 
    The following summary unaudited pro forma condensed combined financial  data
are  provided for  comparative purposes only  and should be  read in conjunction
with the unaudited  pro forma  condensed combined financial  statements and  the
notes  thereto and  the separate  audited consolidated  financial statements and
related notes thereto  of STAR and  AMSERV. See "UNAUDITED  PRO FORMA  CONDENSED
COMBINED  FINANCIAL  STATEMENTS."  The  following  summary  unaudited  pro forma
condensed combined  financial data  does not  purport to  be indicative  of  the
results which actually would have occurred if the Merger had been consummated on
the dates indicated or which may be obtained in the future.
 
<TABLE>
<CAPTION>
                                                                                            NINE MONTHS ENDED
                                                                  YEARS ENDED MAY 31,   --------------------------
                                                                  --------------------  FEBRUARY 29,  FEBRUARY 28,
                                                                    1995       1994         1996          1995
                                                                  ---------  ---------  ------------  ------------
<S>                                                               <C>        <C>        <C>           <C>
                                                                      (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
INCOME STATEMENT DATA:
Net revenues....................................................  $  44,501  $  29,694   $   35,585    $   28,085
Operating expenses..............................................     42,851     29,118       33,667        26,935
Operating income................................................      1,650        576        1,919         1,152
Interest (income) expense, net..................................        241        (67)          83            28
Income from continuing operations before provision for income
 taxes..........................................................      1,409        643        1,836         1,124
Provision for income taxes......................................        552        286          744           432
Income from continuing operations...............................        857        358        1,092           692
Income from continuing operations per common share..............  $     .23  $     .10   $      .27    $      .19
Weighted average shares outstanding.............................      3,798      3,529        4,041         3,563
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                     FEBRUARY 29,
                                                                                                         1996
                                                                                                    --------------
<S>                                                                                                 <C>
                                                                                                    (IN THOUSANDS)
BALANCE SHEET DATA:
Cash and cash equivalents.........................................................................    $    2,365
Working capital...................................................................................         9,496
Total assets......................................................................................        19,101
Long-term obligations, excluding current maturities...............................................         3,564
Redeemable preferred stock........................................................................           512
Shareholders' equity..............................................................................        11,831
</TABLE>
 
                                       14
<PAGE>
                                  RISK FACTORS
 
    The  following factors should be considered carefully by the shareholders of
STAR and AMSERV in evaluating the Merger and the securities offered hereby.
 
    Certain statements in  this Joint  Proxy Statement/Prospectus  that are  not
historical  facts constitute "forward-looking statements"  within the meaning of
the Private  Securities  Litigation Reform  Act  of 1995.  Such  forward-looking
statements  involve  known and  unknown risks,  uncertainties and  other factors
which may cause the actual results of  STAR, AMSERV and the surviving entity  in
the  Merger  to be  materially  different from  historical  results or  from any
results expressed or  implied by  such forward-looking  statements. Such  risks,
uncertainties  and other factors include, but  are not limited to, the following
risks:
 
RISKS RELATING TO AN INVESTMENT IN STAR
 
    LIQUIDITY.  STAR pays its employees  on a weekly basis. STAR typically  does
not  receive  payment  from  hospitals,  insurance  companies  and  governmental
agencies earlier than  60 to 180  days, or longer,  after rendering an  invoice.
Accordingly,  STAR's operating cash flow may,  at times, be insufficient to meet
certain of  its obligations.  STAR has  a revolving  line of  credit  permitting
borrowings  up to $6,000,000,  which STAR borrows  against from time  to time to
meet its outstanding obligations. This line of credit expires on August 16, 1997
and is  subject to  renewal. As  STAR's business  expands, however,  significant
additional  financing is likely  to be required.  If STAR were  unable to secure
such financing on  terms deemed  favorable by management,  such inability  would
have  a material  adverse effect  on STAR's  financial condition,  including its
ability to meet certain of its obligations as they come due.
 
    HEALTH CARE REFORM.  As a result of the escalation of health care costs  and
the  inability of  many individuals  and employers  to obtain  affordable health
insurance, numerous  proposals have  been or  may be  introduced in  the  United
States   Congress  and  state  legislatures,   and  other  proposals  are  being
considered, relating to health care reform. Such proposals have included,  among
other  things,  provision  of universal  access  to health  care,  reforming the
payment methodology  for health  care  goods and  services  by both  the  public
(Medicare  and Medicaid) and  private sectors, and methods  to control or reduce
public and private spending on health  care. The ultimate timing or effect  such
reforms  may have on STAR cannot be predicted and no assurance can be given that
any such reforms  will not  have a material  adverse effect  on STAR's  revenues
and/or  earnings. Short-term cost containment initiatives may vary substantially
from long-term reforms and may have a material adverse effect on STAR.
 
    REGULATORY ENVIRONMENT.  Virtually all  of STAR's revenues are  attributable
to  payments  received  from  third-party  payors,  including  the  Medicare and
Medicaid programs and private insurers. There are increasing pressures from many
payor sources to control  health care costs. In  addition, there are  increasing
pressures  from public  and private payors  to limit  increases in reimbursement
rates for medical services.  The levels of revenues  and profitability of  STAR,
similar  to  other health  care  companies, will  be  subject to  the  effect of
possible reductions in  coverage or  payment rates by  third-party payors.  Such
changes  could have  a material  adverse effect on  the business  and results of
operations of STAR. As  a provider of services  under the Medicare and  Medicaid
programs,  STAR is  subject to  the federal  fraud and  abuse and  the so-called
"Stark" anti-referral laws, violations of which may result in civil and criminal
penalties  and  exclusion  from  participation  in  the  Medicare  and  Medicaid
programs.  In addition, several states have  enacted their own statutory analogs
of the federal fraud and abuse and anti-referral laws. There can be no assurance
that  administrative  or  judicial  interpretations  of  existing  statutes   or
regulations  or enactments of new  laws or regulations will  not have a material
adverse effect on STAR's operations or financial condition.
 
    Health care is subject to laws  and regulations of federal, state and  local
governments.  The  failure to  obtain,  renew or  maintain  any of  the required
regulatory approvals or licenses could adversely affect the business of STAR and
could prevent it from offering products or services to patients.
 
    COMPETITION.   The home  health  care and  temporary health  care  personnel
placement  markets are highly  fragmented and significant  competitors are often
localized in particular geographic markets. STAR's
 
                                       15
<PAGE>
largest competitors include  Kimberly Quality Care,  Inc., Staff Builders,  Inc.
and  Hospital  Staffing Services,  Inc.  Some of  the  entities with  which STAR
competes have substantially  greater financial  and other  resources than  STAR.
Accordingly, STAR may be unable to successfully compete in this environment.
 
    SHORTAGE OF QUALIFIED PERSONNEL.  STAR's business is dependent in large part
upon  its ability  to recruit and  retain qualified registered  nurses and other
professional and medical support personnel to fill positions in a timely manner.
STAR faces intense competition from other companies in recruiting such qualified
health care  personnel for  its Home  Care and  temporary placement  operations.
STAR's growth may depend, to a significant degree, on its ability to continue to
recruit  and  retain  such qualified  health  care  personnel. There  can  be no
assurance that  such  qualified  health  care  personnel  will  continue  to  be
available  to STAR in the future. If STAR  were unable to attract or retain such
qualified health care personnel,  such inability would  have a material  adverse
effect on the business of STAR.
 
    GOVERNMENT  REGULATION AND LICENSING.  STAR is currently licensed to provide
home health care  in the  five boroughs  of New York  City, as  well as  Nassau,
Suffolk,  Westchester, Oswego, Onondaga, Cayuga, Madison, Jefferson and Herkimer
Counties in  New York  State, and  the State  of Florida.  In Broward  and  Dade
Counties in Florida, STAR's home health care license allows it to participate in
both the Medicare and Medicaid programs.
 
    The  denial or  revocation of  any license or  permit necessary  for STAR to
operate in a particular  market would have a  material adverse effect on  STAR's
business  in that market and,  depending upon the market,  on STAR's business in
general.
 
    Applicable laws and regulations in all states are subject to change by state
legislatures and appropriate regulatory authorities and also may be affected  by
changes  in  federal legislation.  The imposition  of more  stringent regulatory
requirements could have  a materially  adverse impact on  STAR's operations.  In
addition,  STAR will be required to  comply with applicable laws and regulations
in any new state in which it may  operate. If STAR should not be able to  comply
for any reason, it would be unable to conduct business in such state.
 
    PRICING  PRESSURES.  Certain proposals by state legislatures and by Congress
to contain health  care costs, such  as proposals for  cutbacks in Medicare  and
Medicaid  reimbursement levels, governmentally imposed freezes of prices charged
by physicians,  hospitals and  other health  care providers,  and greater  state
flexibility  in  the administration  of Medicaid,  could adversely  affect STAR.
During the fiscal years  ended May 31,  1993, 1994 and 1995,  68%, 58% and  56%,
respectively,  of STAR's  revenues were  attributable to  Medicare, Medicaid and
other state and  federal government payments.  A number of  states have  reduced
funding  for health care services or  have placed certain limits on reimbursable
expenses. There  can be  no  assurance that  additional state  legislatures  and
Congress  will  not  further  reduce  funding  or  impose  additional  limits on
reimbursements, particularly with respect to  expenses to be reimbursed  through
Medicaid.  Such reductions in  funding and limits  on reimbursement, if enacted,
could have a material adverse effect on STAR's operating results.
 
    LIABILITY  FOR  SERVICES;  LIABILITY   INSURANCE.    STAR's  employees   and
independent  contractors routinely confront life threatening situations and also
make decisions which can have  significant medical consequences to the  patients
in  their care.  As a result,  STAR is  exposed to substantial  liability in the
event of negligence or  wrongful acts of its  personnel. STAR maintains  medical
professional  insurance providing for coverage in a maximum amount of $1,000,000
per claim, subject to a  limitation of $3,000,000 for  all claims in any  single
year.  In  addition, STAR  requires that  any  independent contractor  whom STAR
refers  to  institutions  for  employment  supply  a  certificate  of  insurance
evidencing  that  such  person maintains  his  or her  own  medical professional
liability insurance providing for coverage of no less than $1,000,000 per claim,
subject to a limitation of  no more than $3,000,000 for  all claims in a  single
policy  year. Although  there are currently  no material  claims pending against
STAR, there can be no assurance that STAR will be able to maintain its  existing
insurance  at an acceptable cost or obtain additional insurance in the future as
required or that such
 
                                       16
<PAGE>
level of insurance will be sufficient to cover liabilities from claims that  may
be  brought. A partially or completely uninsured claim, if successfully asserted
and of sufficient magnitude,  could have a material  adverse effect on STAR  and
its financial condition.
 
    NO  CASH DIVIDENDS.  Since prior to its initial public offering in May 1991,
STAR has not paid cash dividends on  its Common Stock. It is the present  policy
of STAR to retain earnings, if any, to finance the development and growth of its
business. Accordingly, STAR does not anticipate that cash dividends will be paid
until  earnings of STAR  warrant such dividends,  and there can  be no assurance
that STAR can achieve such earnings or any earnings.
 
RISKS RELATING TO THE MERGER
 
    NO  ASSURANCE  THAT  STAR  WILL   REALIZE  ANTICIPATED  BENEFITS  FROM   THE
MERGER.  The Merger involves the combination of certain aspects of two companies
that  have operated independently.  Accordingly, there can  be no assurance that
AMSERV  can  be  successfully  integrated  into  STAR  or  that  STAR  and   its
shareholders  (including  persons who  become shareholders  as  a result  of the
Merger) will ultimately realize any of the anticipated benefits of the Merger.
 
    INTERESTS OF  CERTAIN PERSONS  IN THE  MERGER; CONFLICTS  OF INTEREST.    In
considering the recommendation of the Board of Directors of AMSERV and the Board
of  Directors of STAR with respect to  the Merger Agreement and the transactions
contemplated thereby,  shareholders  should be  aware  that certain  members  of
AMSERV's  management and AMSERV's Board have interests in the Merger that are in
addition to and may  conflict with the interests  of shareholders of AMSERV  and
STAR  generally. The Boards of Directors of  AMSERV and STAR were aware of these
interests and  considered them,  among other  factors, in  approving the  Merger
Agreement  and  the  transactions  contemplated  thereby.  See  "THE  MERGER  --
Interests of Certain  Persons in  the Merger;  Conflicts of  Interest" and  "THE
MERGER AGREEMENT -- Treatment of Stock Options."
 
    SUBSTANTIAL INFLUENCE BY MR. STERNBACH.  After completion of the Merger, Mr.
Sternbach  will have  voting power over  approximately 28.1%  of the outstanding
STAR Common  Stock.  While Mr.  Sternbach's  ownership  will not  allow  him  to
exercise  control over  STAR, his  stock ownership  as well  as his  position as
Chairman of the Board of Directors,  President and Chief Executive Officer  will
enable  him to exercise significant influence on the management and operation of
the combined entity.
 
    NO UPDATE OF THE  BATCHELDER OPINION.  AMSERV  has received an opinion  from
Batchelder, dated February 9, 1996 to the effect that, as of such date and based
upon  certain matters as stated therein, the terms of the Merger are fair to the
shareholders of AMSERV from  a financial point of  view. AMSERV's obligation  to
consummate  the Merger is  not conditioned upon receipt  of an updated financial
opinion. AMSERV does not intend to obtain, and Batchelder is under no obligation
to provide, an update  of such opinion. Accordingly,  there can be no  assurance
that  Batchelder  would render  a similar  opinion  as of  a date  subsequent to
February  9,  1996.  See  "THE  MERGER  --  AMSERV's  Reasons  for  the  Merger;
Recommendation  of  the  AMSERV  Board"  and  "--  Financial  Advisor;  Fairness
Opinion."
 
    FIXED EXCHANGE RATIO.   The  Exchange Ratio  is fixed  by the  terms of  the
Merger  Agreement and is not subject to adjustment. Because the market prices of
STAR Common Stock and AMSERV Common Stock are subject to market fluctuation, the
market value of the shares of STAR Common Stock that the shareholders of  AMSERV
will  receive and the value of the  AMSERV Common Stock that the shareholders of
AMSERV will exchange may change over time. See "COMPARATIVE MARKET DATA."
 
    DILUTION OF VOTING  POWER.   Consummation of the  Merger will  result in  an
approximate  57%  increase  in  the  number  of  shares  of  STAR  Common  Stock
outstanding. Shareholders of  STAR will, therefore,  experience a  corresponding
dilution  of their voting power. In exchange  for 100% of the outstanding AMSERV
Common Stock,  shareholders of  AMSERV  will receive  approximately 36%  of  the
outstanding  voting stock of STAR. Accordingly,  they will experience a dilution
of approximately 64% of their relative voting authority after the Merger.
 
                                       17
<PAGE>
    THIRD PARTY PAYORS.  A significant portion of STAR's revenues are  generated
by  third  party payors.  Such  payments are  subject  to audit  and adjustment,
including retroactive adjustment. During  the fiscal years  1993, 1994 and  1995
such adjustments have been insignificant. In the event that future audits result
in  adjustments that are  not insignificant, then such  adjustments could have a
material adverse effect on STAR.
 
    FEDERAL INCOME  TAXES.   If the  Merger were  not to  constitute a  tax-free
reorganization under Section 368(a)(1) of the Code, each holder of AMSERV Common
Stock  would recognize  gain or  loss equal to  the difference  between the fair
market value of  the STAR Common  Stock received  and cash received  in lieu  of
fractional  shares and such holder's basis in  the shares of AMSERV Common Stock
exchanged therefor. Such gain or loss  would be long-term capital gain or  loss,
provided  such shares had been  held for more than one  year. See "THE MERGER --
Certain Federal Income Tax Consequences" and "THE MERGER AGREEMENT -- Conditions
of the Merger."
 
                                       18
<PAGE>
                           COMPARATIVE PER SHARE DATA
 
    The following table presents historical  and equivalent unaudited pro  forma
per  share data of AMSERV  and STAR after giving effect  to the Merger using the
pooling of  interests  method  of  accounting,  assuming  the  Merger  had  been
effective  during all periods presented. The pro  forma data does not purport to
be indicative of the results of future operations or the results that would have
occurred had  the  Merger been  consummated  at  the beginning  of  the  periods
presented.  The information set  forth below should be  read in conjunction with
the financial  statements and  the notes  thereto  of AMSERV  and STAR  and  the
unaudited  pro forma condensed combined  financial statements included elsewhere
in this Joint Proxy Statement/ Prospectus.
 
<TABLE>
<CAPTION>
                                                                              AMSERV                     STAR
                                                                     ------------------------  ------------------------
                                                         PRO FORMA                EQUIVALENT                EQUIVALENT
                                                         COMBINED    HISTORICAL    PRO FORMA   HISTORICAL    PRO FORMA
                                                        -----------  -----------  -----------  -----------  -----------
<S>                                                     <C>          <C>          <C>          <C>          <C>
Book value per share of common stock outstanding at
 February 29, 1996....................................   $    3.23    $    1.50    $    3.66    $    2.91       --
Cash Dividends Declared...............................      --           --           --           --           --
Income (loss) per share from continuing operations:
  Nine months ended February 29, 1996.................   $     .27    $     .10    $     .26    $     .28       --
  Year ended May 31, 1995.............................   $     .23    $     .02    $     .04    $     .28       --
  Year ended May 31, 1994.............................   $     .10    $    (.02)   $    (.05)   $     .18       --
</TABLE>
 
                            COMPARATIVE MARKET DATA
 
    AMSERV Common Stock and STAR Common Stock are quoted on the Nasdaq  National
Market  under the symbols "AMSR" and  "SMCS," respectively. The table below sets
forth, for the fiscal quarters (based upon the respective fiscal years of AMSERV
and STAR) indicated,  the high  and low  sales prices  per share  on the  Nasdaq
National Market.
 
<TABLE>
<CAPTION>
                                                                     AMSERV                       STAR
                                                                  COMMON STOCK                COMMON STOCK
                                                           --------------------------  --------------------------
                                                               HIGH          LOW           HIGH          LOW
                                                              ------        ------     ------------     ------
<S>                                                        <C>           <C>           <C>           <C>
FISCAL 1995:
  First Quarter..........................................  $       13/8  $        11/16 $       31/16 $       2
  Second Quarter.........................................          113/16          7/8         43/8          27/8
  Third Quarter..........................................          27/8          19/16         43/8          33/4
  Fourth Quarter.........................................          31/4          21/4          41/16         31/4
FISCAL 1996:
  First Quarter..........................................  $       33/8  $       13/4  $       43/8  $       31/2
  Second Quarter.........................................          31/4          2             73/8          43/16
  Third Quarter..........................................          27/8          21/8          81/8          51/2
  Fourth Quarter.........................................          31/8          2             71/2          51/8
FISCAL 1997:
  First Quarter (through July 17, 1996)..................  $       31/2  $       211/16 $      133/4 $       63/8
</TABLE>
 
    The  last reported  sale prices  per share of  AMSERV Common  Stock and STAR
Common Stock  on  January  17,  1996, the  last  trading  day  preceding  public
announcement  of the Merger, were $2 1/2  and $7, respectively. On July 17, 1996
the closing sale  price per  share of  AMSERV Common Stock  was $2  7/8 and  the
closing sale price per share of STAR Common Stock was $7 3/4.
 
    As  of July 17, 1996 the number of  holders of record of AMSERV Common Stock
and STAR  Common  Stock were  461  and 68,  respectively.  AMSERV paid  no  cash
dividends during the last five years. AMSERV
 
                                       19
<PAGE>
currently  anticipates that it  will retain all  available funds for  use in the
operation of its business, and the Merger Agreement prohibits the payment of any
dividends by AMSERV  prior to  the Effective Time.  Since prior  to its  initial
public offering in May 1991, STAR has not paid cash dividends on the STAR Common
Stock.  It is the present policy of STAR  to retain earnings, if any, to finance
the  development  and  growth  of  its  business.  Accordingly,  STAR  does  not
anticipate  that cash dividends will be paid until earnings of STAR warrant such
dividends, and there can be no assurance that STAR can achieve such earnings  or
any earnings.
 
    BECAUSE  THE EXCHANGE RATIO  IS FIXED AND  BECAUSE THE MARKET  PRICE OF STAR
COMMON STOCK IS SUBJECT TO FLUCTUATION, THE  MARKET VALUE OF THE SHARES OF  STAR
COMMON  STOCK THAT HOLDERS OF AMSERV COMMON STOCK WILL RECEIVE IN THE MERGER MAY
INCREASE OR DECREASE PRIOR TO AND  FOLLOWING THE MERGER. SHAREHOLDERS OF  AMSERV
AND  STAR ARE URGED TO OBTAIN CURRENT  MARKET QUOTATIONS FOR AMSERV COMMON STOCK
AND STAR COMMON STOCK.
 
                                       20
<PAGE>
                               THE AMSERV MEETING
 
GENERAL
 
    This Joint Proxy Statement/Prospectus  is being furnished  by AMSERV to  the
holders of AMSERV Voting Stock in connection with the solicitation of proxies by
the  Board of Directors of AMSERV for  use at the Annual Meeting of Shareholders
of AMSERV (the "AMSERV Meeting") to be held at the Radisson Hotel La Jolla, 3299
Holiday Court, La  Jolla, California on  Friday, August 23,  1996 at 9:30  a.m.,
local time, and any adjournments or postponements thereof.
 
    The Joint Proxy Statement/Prospectus, the attached Notice of Meeting and the
accompanying  form of proxy are first being  mailed to shareholders of AMSERV on
or about July 22, 1996.
 
MATTERS TO BE CONSIDERED AT THE AMSERV MEETING
 
    At the  AMSERV  Meeting, holders  of  shares  of AMSERV  Voting  Stock  will
consider  and vote on (i)  a proposal to approve  and adopt the Merger Agreement
and the transactions contemplated thereby, (ii) the election of five persons  to
the  AMSERV Board of Directors  to serve until the  earlier of (a) AMSERV's next
Annual Meeting of Shareholders and until the election and qualification of their
respective successors or  (b) consummation of  the Merger, (iii)  a proposal  to
ratify  and approve the selection  of Ernst & Young  LLP as AMSERV's independent
public accountants for the fiscal year ended  June 29, 1996 and (iv) such  other
business as may properly come before the AMSERV Meeting.
 
    The  AMSERV Board  of Directors  has approved  the Merger  Agreement and the
transactions contemplated thereby. The AMSERV  Board of Directors believes  that
the  terms of the Merger are  fair to, and in the  best interests of, AMSERV and
its shareholders and unanimously  recommends that the  holders of AMSERV  Voting
Stock   vote  FOR  approval  and  adoption  of  the  Merger  Agreement  and  the
transactions contemplated thereby. For further  information, see "THE MERGER  --
AMSERV's  Reasons  for  the  Merger; Recommendation  of  the  AMSERV  Board." In
addition, the AMSERV Board of Directors recommends that you vote FOR each person
nominated to the AMSERV Board of Directors and FOR the ratification and approval
of the selection of Ernst & Young  LLP as AMSERV's independent auditors for  the
fiscal  year  ended  June  29,  1996. See  "ELECTION  OF  AMSERV  DIRECTORS" and
"RATIFICATION OF APPOINTMENT OF INDEPENDENT PUBLIC ACCOUNTANTS OF AMSERV."
 
    It is currently expected that representatives  of Ernst & Young LLP will  be
present  at the AMSERV Meeting,  where they will have  the opportunity to make a
statement if they  so decide  and will be  available to  respond to  appropriate
questions.
 
AMSERV RECORD DATE
 
    The Board of Directors of AMSERV has fixed the close of business on July 15,
1996  as the  AMSERV Record  Date for  the determination  of AMSERV shareholders
entitled to notice  of, and to  vote at, the  AMSERV Meeting. Accordingly,  only
holders  of record of shares of AMSERV Voting  Stock at the close of business on
the AMSERV Record Date  are entitled to  notice of, and to  vote at, the  AMSERV
Meeting.  As of the AMSERV Record Date,  3,436,024 shares of AMSERV Voting Stock
were outstanding and held of record by 461 AMSERV shareholders.
 
PROXIES
 
    When a  proxy  card is  returned,  properly  signed and  dated,  the  shares
represented  thereby will  be voted in  accordance with the  instructions on the
proxy card. If a  shareholder does not  attend the AMSERV  Meeting and does  not
return  the signed proxy card, such shareholder's shares will not be voted. If a
shareholder returns a signed  proxy card but  does not indicate  how his or  her
shares  are to be  voted, such shares will  be voted FOR  approval of the Merger
Agreement and the  transactions contemplated  thereby, FOR the  election of  the
persons  nominated to the AMSERV Board of Directors and FOR the ratification and
approval of the selection  of Ernst & Young  LLP as AMSERV's independent  public
accountants. As of the date of this Joint Proxy Statement/Prospectus, the AMSERV
Board of Directors does not know of any
 
                                       21
<PAGE>
other  matters which are to come before the AMSERV Meeting. If any other matters
are properly presented at the AMSERV Meeting for consideration, including, among
other things, consideration of a motion to adjourn the AMSERV Meeting to another
time and/or place, the persons  named in the enclosed  form of proxy and  acting
thereunder will have discretion to vote on such matters in accordance with their
best judgment. Such discretionary authority, however, will not allow the persons
named  in the enclosed form  of proxy to adjourn  or postpone the AMSERV Meeting
for the purpose of soliciting additional votes.
 
    Any proxy given pursuant to this  solicitation may be revoked by the  person
giving  it at any time before it is  voted. Proxies may be revoked by (i) filing
with the Secretary of AMSERV, at or before the taking of the vote at the  AMSERV
Meeting,  a written notice  of revocation bearing  a later date  than the proxy,
(ii) duly executing a later  dated proxy relating to  the same shares of  AMSERV
Voting  Stock and delivering it to the  Secretary of AMSERV before the taking of
the vote at the AMSERV Meeting or (iii) attending the AMSERV Meeting and  voting
in  person (although attendance at the AMSERV  Meeting will not in and of itself
constitute a  revocation  of a  proxy).  Any  written notice  of  revocation  or
subsequent  proxy should be  sent so as  to be delivered  to 3252 Holiday Court,
Suite No. 204, La  Jolla, California 92037,  Attention: Corporate Secretary,  or
hand delivered to the Secretary of AMSERV at or before the taking of the vote at
the AMSERV Meeting.
 
    AMSERV  will  bear  the  cost  of  the  solicitation  of  proxies  from  its
shareholders. In addition to  solicitation by use of  the mails, proxies may  be
solicited  by  directors, officers,  and  employees of  AMSERV  in person  or by
telephone  or  other  means  of  communication.  Such  directors,  officers  and
employees  will  not  be additionally  compensated,  but may  be  reimbursed for
out-of-pocket  expenses   incurred  in   connection  with   such   solicitation.
Arrangements also will be made with custodians, nominees and fiduciaries for the
forwarding  of proxy solicitation materials to  beneficial owners of shares held
of record  by  such  custodians,  nominees  and  fiduciaries,  and  AMSERV  will
reimburse  such  custodians, nominees  and  fiduciaries for  reasonable expenses
incurred in  connection  therewith.  In  addition,  Georgeson  &  Company,  Inc.
("Georgeson")  will assist in  the solicitation of  proxies by AMSERV. Following
AMSERV's receipt from Stockbridge  Investment Partners, Inc. ("Stockbridge")  of
the  first of  seven notices of  intention to  act by written  consent (see "THE
MERGER --  Background of  the  Merger"), AMSERV  retained Georgeson  to  solicit
revocations  of  consent and  to  assist with  the  solicitation of  proxies for
AMSERV's annual  meeting. Georgeson  will receive  a fee  totaling $50,000  plus
out-of-pocket expenses for such services.
 
    AMSERV  SHAREHOLDERS SHOULD NOT SEND ANY STOCK CERTIFICATES WITH THEIR PROXY
CARDS. THE PROCEDURES FOR THE EXCHANGE OF SHARES AFTER THE MERGER IS CONSUMMATED
ARE SET FORTH BELOW IN THIS JOINT PROXY STATEMENT/ PROSPECTUS.
 
QUORUM
 
    The presence,  either in  person or  by properly  executed proxies,  of  the
holders  of  a majority  of the  outstanding  shares of  AMSERV Voting  Stock is
necessary to constitute  a quorum at  the AMSERV Meeting.  Both abstentions  and
broker non-votes are considered present for purposes of determining a quorum but
are excluded from votes cast.
 
VOTE REQUIRED
 
    AMSERV  shareholders are entitled to one vote at the AMSERV Meeting for each
share of AMSERV Voting Stock held of  record by them on the AMSERV Record  Date.
The  affirmative vote of the holders of  a majority of the outstanding shares of
AMSERV Voting Stock entitled  to vote thereon is  required to approve and  adopt
the  Merger  Agreement.  Since approval  of  the Merger  Agreement  requires the
affirmative vote of a majority of the outstanding shares of AMSERV Voting Stock,
abstentions and  broker non-votes  will have  the effect  of votes  against  the
Merger  Agreement. The affirmative  vote of a  majority of the  shares of AMSERV
Voting Stock present  at the  AMSERV Meeting, either  in person  or by  properly
executed  proxies, and  entitled to  vote is  required to  elect members  of the
AMSERV Board of Directors and to ratify the
 
                                       22
<PAGE>
appointment of Ernst & Young LLP as AMSERV's independent public accountants  for
the  fiscal year ended June 29, 1996. Since approval of these proposals requires
the affirmative vote  of a majority  of the votes  cast, abstentions and  broker
non-votes will not affect the outcome of these proposals.
 
    As  of the  AMSERV Record Date,  AMSERV's directors,  executive officers and
affiliates may be  deemed to  be beneficial owners  of an  aggregate of  768,395
shares  of AMSERV  Voting Stock (excluding  72,316 shares which  may be acquired
upon exercise of options or other rights which are exercisable within 60 days of
the AMSERV Record Date), or approximately 22% of the then outstanding shares  of
AMSERV  Voting Stock. AMSERV  has been advised that  its directors and executive
officers intend to  vote in favor  of the  approval and adoption  of the  Merger
Agreement,  for the  election of  the persons nominated  to the  AMSERV Board of
Directors and for  the ratification  and approval of  the selection  of Ernst  &
Young LLP as AMSERV's independent public accountants.
 
                                       23
<PAGE>
                                THE STAR MEETING
 
GENERAL
 
    This  Joint Proxy  Statement/Prospectus is  being furnished  by STAR  to the
holders of STAR Common Stock in  connection with the solicitation of proxies  by
the  Board of Directors of STAR for use  at a Special Meeting of Shareholders of
STAR to be  held on  Friday, August  23, 1996 at  the offices  of Parker  Chapin
Flattau  & Klimpl, LLP, 1211 Avenue of  the Americas (18th Floor), New York, New
York at 12:30 p.m., local time, and any adjournments or postponements thereof.
 
    The Joint Proxy Statement/Prospectus, the attached Notice of Meeting and the
accompanying form of proxy are first being mailed to shareholders of STAR on  or
about July 22, 1996.
 
MATTERS TO BE CONSIDERED AT THE STAR MEETING
 
    At  the STAR Meeting, holders  of shares of STAR  Common Stock will consider
and vote upon:
 
        1.   A  proposal to  approve  and adopt  the  Merger Agreement  and  the
    transactions contemplated thereby. In addition, approval and adoption of the
    Merger  Agreement will constitute  approval of the  assumption of the AMSERV
    Stock Option Plan under which the AMSERV Options were issued; and
 
        2.  Such other business as properly may come before the STAR Meeting and
    any adjournments or postponements thereof.
 
    The STAR Board of  Directors has unanimously  approved the Merger  Agreement
and  the transactions contemplated thereby. The STAR Board of Directors believes
that the terms of the Merger are fair to, and in the best interests of, STAR and
its shareholders  and unanimously  recommends that  the holders  of STAR  Common
Stock  vote  FOR the  approval  and adoption  of  the Merger  Agreement  and the
transactions contemplated thereby. For further  information, see "THE MERGER  --
STAR's Reasons for the Merger; Recommendation of the STAR Board."
 
STAR RECORD DATE
 
    The  Board of Directors of STAR has fixed  the close of business on July 15,
1996 as the STAR Record Date for the determination of STAR shareholders entitled
to notice of, and  to vote at,  the STAR Meeting.  Accordingly, only holders  of
record  of shares  of STAR  Common Stock at  the close  of business  on the STAR
Record Date are entitled to notice of, and  to vote at, the STAR Meeting. As  of
the STAR Record Date, 2,463,079 shares of STAR Common Stock were outstanding and
held of record by 69 STAR shareholders.
 
PROXIES
 
    When  a  proxy  card is  returned,  properly  signed and  dated,  the shares
represented thereby will  be voted in  accordance with the  instructions on  the
proxy  card. If  a shareholder  does not  attend the  STAR Meeting  and does not
return the signed proxy card, such shareholder's shares will not be voted. If  a
shareholder  returns a signed  proxy card but  does not indicate  how his or her
shares are to be  voted, such shares  will be voted FOR  approval of the  Merger
Agreement  and the  transactions contemplated  thereby. As  of the  date of this
Joint Proxy Statement/Prospectus, the STAR Board  of Directors does not know  of
any  other  matters which  are to  come before  the STAR  Meeting. If  any other
matters are  properly  presented at  the  STAR Meeting  for  consideration,  the
persons  named in  the enclosed  form of proxy  and acting  thereunder will have
discretion to vote on such matters in accordance with their best judgment.  Such
discretionary  authority,  however,  will not  allow  the persons  named  in the
enclosed form of proxy to adjourn or  postpone the STAR Meeting for the  purpose
of soliciting additional votes.
 
    Any  proxy given pursuant to this solicitation  may be revoked by the person
giving it at any time before it is  voted. Proxies may be revoked by (i)  filing
with  the Secretary of  STAR, at or  before the taking  of the vote  at the STAR
Meeting, a written  notice of revocation  bearing a later  date than the  proxy,
(ii)  duly executing  a later dated  proxy relating  to the same  shares of STAR
Common Stock and delivering it to the Secretary of STAR before the taking of the
vote at the  STAR Meeting  or (iii)  attending the  STAR Meeting  and voting  in
person  (although  attendance at  the STAR  Meeting  will not  in and  of itself
constitute a revocation of a
 
                                       24
<PAGE>
proxy). Any written notice of revocation  or subsequent proxy should be sent  so
as to be delivered to STAR MULTI CARE SERVICES, INC., 99 Railroad Station Plaza,
Hicksville, New York 11801, Attention: Corporate Secretary, or hand delivered to
the Secretary of STAR at or before the taking of the vote at the STAR Meeting.
 
    STAR   will  bear  the  cost  of   the  solicitation  of  proxies  from  its
shareholders. In addition to  solicitation by use of  the mails, proxies may  be
solicited  by  directors,  officers,  and  employees of  STAR  in  person  or by
telephone  or  other  means  of  communication.  Such  directors,  officers  and
employees  will  not  be additionally  compensated,  but may  be  reimbursed for
out-of-pocket  expenses   incurred  in   connection  with   such   solicitation.
Arrangements also will be made with custodians, nominees and fiduciaries for the
forwarding  of proxy solicitation materials to  beneficial owners of shares held
of record by such custodians, nominees and fiduciaries, and STAR will  reimburse
such  custodians, nominees and  fiduciaries for reasonable  expenses incurred in
connection therewith.
 
QUORUM
 
    The presence,  either in  person or  by properly  executed proxies,  of  the
holders  of a majority  of the shares of  STAR Common Stock  entitled to vote is
necessary to  constitute a  quorum at  the STAR  Meeting. Both  abstentions  and
broker non-votes are considered present for purposes of determining a quorum but
are excluded from votes cast.
 
VOTE REQUIRED
 
    STAR  shareholders are  entitled to  one vote at  the STAR  Meeting for each
share of STAR Common Stock held of record  by them on the STAR Record Date.  The
affirmative vote of the holders of a majority of the shares of STAR Common Stock
voted  at the STAR  Meeting, in person or  by proxy, is  required to approve and
adopt the  Merger Agreement  and the  transactions contemplated  thereby.  Since
approval  of  the  Merger  Agreement  requires a  majority  of  the  votes cast,
abstentions and broker non-votes will not affect the outcome of this proposal.
 
    As of  the  STAR  Record  Date, STAR's  directors,  executive  officers  and
affiliates  may be  deemed to  be beneficial owners  of an  aggregate of 997,632
shares of STAR Common Stock (excluding 181,986 shares which may be acquired upon
exercise of options or other rights which are exercisable within 60 days of  the
STAR Record Date), or approximately 40.5% of the then outstanding shares of STAR
Common  Stock. STAR has  been advised that its  directors and executive officers
intend to vote in favor of the approval and adoption of the Merger Agreement.
 
VOTING AGREEMENT
 
    On February 9, 1996,  as a condition to  AMSERV's willingness to enter  into
the  Merger Agreement and  to consummate the  transactions contemplated thereby,
Stephen Sternbach, Chairman, President and  Chief Executive Officer of STAR  and
the  direct beneficial owner of 847,155 shares (34.4%) of STAR Common Stock (the
"Sternbach Shares"), entered into an agreement (the "Voting Agreement") pursuant
to which he agreed to vote (or cause to be voted) during the term of the  Voting
Agreement  the  Sternbach  Shares in  favor  of  the Merger,  the  execution and
delivery by STAR of the Merger Agreement  and the approval of the terms  thereof
and  each of  the other  actions contemplated  by the  Merger Agreement  and the
Voting Agreement. Mr. Sternbach also agreed  not to enter into any agreement  or
understanding  with any person or entity, prior to the termination of the Voting
Agreement, to vote  or give  instructions after  the termination  of the  Voting
Agreement that is inconsistent with the aforementioned agreement.
 
    In  addition, Mr.  Sternbach granted to  AMSERV and the  Secretary and Chief
Financial Officer of AMSERV an irrevocable proxy to vote the Sternbach Shares in
the manner described above. The Voting  Agreement will terminate upon the  first
to  occur of (i) the Effective Time and (ii) termination of the Merger Agreement
in accordance with its terms.
 
                                       25
<PAGE>
                                   THE MERGER
 
BACKGROUND OF THE MERGER
 
    At a special  meeting held on  February 9, 1996,  AMSERV's Board  determined
that  the Merger is fair  to, and in the best  interests of, the shareholders of
AMSERV, approved the  Agreement and Plan  of Merger among  STAR, Merger Sub  and
AMSERV  dated as of February  9, 1996 (the "Original  Merger Agreement") and the
transactions  contemplated  thereby,  and  determined  to  recommend  to  AMSERV
shareholders  that they  vote for approval  and adoption of  the Original Merger
Agreement. At  a  special  meeting  held  on  February  8,  1996,  STAR's  Board
unanimously determined that the Merger is fair to, and in the best interests of,
the  shareholders of  STAR, and determined  to recommend  to STAR's shareholders
that they vote for  approval and adoption of  the Original Merger Agreement.  On
July  17, 1996 the Boards  of AMSERV, Merger Sub and  STAR resolved to amend the
Original Merger  Agreement with  respect to  the two  matters set  forth  below.
Accordingly,  on July  18, 1996  STAR, Merger  Sub and  AMSERV executed  a First
Amendment to Agreement and  Plan of Merger (the  "Amendment", and together  with
the Original Merger Agreement, the "Merger Agreement"). The following discussion
sets forth certain information relating to the background of the discussions and
meetings leading up to the Merger.
 
    On  January 24, 1995, Thomas M.  Clarke, President of Stockbridge Investment
Partners, Inc. ("Stockbridge"),  met with  Mr. Mora,  Chairman, Chief  Executive
Officer  and President of AMSERV, and proposed  that the AMSERV Board consider a
business  combination  in   which  AMSERV   would  merge   with  York   Hannover
Pharmaceuticals, Inc. ("York"), a wholly-owned subsidiary of Stockbridge and the
owner   (together  with  various  affiliates)   of  approximately  6.0%  of  the
outstanding shares of AMSERV Common Stock.  The terms of the proposal  contained
few  specifics  other than  a business  combination  analysis which  used actual
historical results  for  AMSERV  but  (i)  included  revenues  from  unspecified
acquisitions  for  York,  (ii) indicated  an  unspecified  $15,000,000 financing
arrangement for York,  and (iii) proposed  that Stockbridge receive  57% of  the
combined  company.  The  AMSERV  Board did  not  consider  the  proposal because
Stockbridge's lack of  specificity made it  impossible for the  AMSERV Board  to
make  an  informed decision  regarding the  proposal. On  January 26,  1995, Mr.
Clarke presented  a revised  version of  his January  24, 1995  proposal to  the
AMSERV  Board.  The terms  of Mr.  Clarke's  revised proposal  involved possibly
structuring a  two step  plan. The  first  step would  merge York  with  AMSERV,
providing  Stockbridge with a 40%  interest in AMSERV. In  the second step, York
would then assign its contracts  to purchase certain pharmaceutical and  medical
supply businesses in Florida to AMSERV.
 
    By  letter dated  January 31,  1995, Mr.  Mora advised  Mr. Clarke  that the
AMSERV  Board  had  reviewed  the  merger  proposal  and  requested   additional
information  from Mr.  Clarke for purposes  of its evaluation  of such proposal,
including, among  other things,  audited  financial statements  for York  and  a
profile of York's business, management, products, services and customer base. On
February  15,  1995,  Stockbridge  and  AMSERV  entered  into  a confidentiality
agreement with respect to  information shared between  the parties. On  February
21,  1995, Mr. Clarke submitted to  Mr. Mora certain unaudited summary financial
information regarding York, but failed  to include York's audited financials  or
any  of the other information  requested in Mr. Mora's  letter dated January 31,
1995. On February 27, 1995,  Mr. Mora spoke with  Mr. Clarke and reiterated  the
AMSERV  Board's desire  to review such  information in order  to fairly consider
Stockbridge's merger proposal.
 
    On March 6,  1995, the  AMSERV Board  established a  special committee  (the
"Special  Committee"), consisting of  Messrs. Robinton, Rogers  and Spinelli, to
evaluate Stockbridge's merger proposal and  any third party proposals which  may
be  received. The Special Committee  did not hold any  meetings, however, as the
AMSERV Board determined, based  on the activities  of Stockbridge requiring  the
constant attention of AMSERV directors (such as the numerous requests for record
dates  and the commencement  of litigation against  AMSERV, as described below),
that   the   services    of   all   AMSERV    directors   were   necessary    to
 
                                       26
<PAGE>
properly  consider Stockbridge's merger proposal  and any third party proposals.
The disuse of the Special Committee was a factor considered by the AMSERV  Board
in  evaluating the Merger. See  "THE MERGER -- AMSERV's  Reasons for the Merger;
Recommendation of the AMSERV Board."
 
    On March 8, 1995, Mr. Clarke telephoned Mr. Mora regarding the status of the
AMSERV Board's review of  Stockbridge's merger proposal.  Mr. Mora informed  Mr.
Clarke  that the AMSERV  Board could not properly  consider the proposal without
the additional information it  had requested. Mr. Mora  said that he would  send
another request to Mr. Clarke for the desired information. By letter dated March
14,  1995, Mr. Mora again requested the  information from Mr. Clarke. As before,
Mr. Clarke failed to respond to such request.
 
    On April 1,  1995, following  discussions with  several potential  financial
advisors,  the AMSERV Board retained Batchelder & Partners, Inc. ("Batchelder"),
an investment banking and financial advisory firm, to assist the AMSERV Board in
evaluating Stockbridge's merger proposal.
 
    By letter  dated April  5,  1995, Mr.  Mora  reiterated the  AMSERV  Board's
request for information and invited Mr. Clarke to meet with the directors at the
AMSERV  Board's April 27, 1995  meeting. Mr. Mora received  no response from Mr.
Clarke regarding such  invitation. By  letter dated  April 6,  1995, Mr.  Clarke
withdrew  Stockbridge's merger  proposal and filed  a written  consent to remove
from the AMSERV Board three of the  five current directors, and to replace  such
directors  with three persons designated by  Stockbridge. On April 13, 1995, the
AMSERV Board held a special meeting pursuant to AMSERV's by-laws to establish  a
record date for purposes of Stockbridge's consent solicitation. The AMSERV Board
set April 21, 1995 as such record date.
 
    On April 27, 1995, Stockbridge commenced litigation in the Court of Chancery
of  the  State  of  Delaware  in  and  for  New  Castle  County  (the  "Delaware
Litigation")  against  AMSERV  and  its  current  directors,  seeking  an  order
rescinding  the transactions by which AMSERV exchanged a promissory note held by
North Central Personnel, Inc. for 426,794 shares of Class A Redeemable Preferred
Stock of AMSERV and partially financed the exercise by Mr. Mora of stock options
to acquire  177,562  shares  of  AMSERV  Common  Stock,  and  preliminarily  and
permanently  enjoining AMSERV from recognizing such  stock, as well as any stock
proposed to be  issued in  connection with  a letter  of intent  referred to  in
AMSERV's  April 13, 1995 press release, as validly issued for purposes of voting
or exercising rights to consent. See "BUSINESS OF AMSERV -- Legal Proceedings."
 
    On May 3,  1995, Batchelder met  with Mr. Clarke  and Lawrence B.  Cummings,
Chief Executive Officer of Stockbridge, regarding Stockbridge's merger proposal.
Mr.  Clarke informed  Batchelder that Stockbridge  was still  very interested in
pursuing a business combination involving AMSERV and York. Batchelder  responded
that  the AMSERV Board  also desired to engage  in further discussions regarding
such matter  and was  hopeful of  receiving the  additional information  it  had
previously  requested. Mr. Clarke  indicated that Stockbridge  would provide all
information requested by  Batchelder for  purposes of  conducting due  diligence
with respect to Stockbridge's merger proposal.
 
    On  May 15, 1995, after determining that a proper defense against the claims
in the Delaware Litigation would be very costly and that such expense would  not
be in the best interests of AMSERV's shareholders, the AMSERV Board entered into
a  Standstill Agreement and a Settlement Agreement and Release with Stockbridge,
both dated as of  May 12, 1995 (collectively,  the "Settlement Agreements"),  to
enable the parties to continue discussions and receive more detailed information
regarding  a potential  merger without  disadvantaging either  party's position.
Pursuant to the Settlement Agreements,  Stockbridge agreed, among other  things,
to (i) revoke the consent delivered April 7, 1995, (ii) suspend its solicitation
of  consents  to remove  a majority  of  AMSERV's Board  of Directors  and (iii)
dismiss with prejudice the Delaware Litigation. In addition, the parties  agreed
that  Stockbridge could pursue a renewed consent solicitation, with a new record
date, following the expiration of the Standstill Agreement on June 11, 1995, and
that such solicitation would not last more than 30 days.
 
                                       27
<PAGE>
    Also on May  15, 1995,  pursuant to the  Settlement Agreements,  Stockbridge
delivered  to AMSERV a written notice indicating  its intent to pursue a renewed
consent solicitation (which solicitation could not be commenced until after June
11, 1995  nor last  more than  30 days,  as described  above). Pursuant  to  the
Settlement Agreements, the AMSERV Board held a special meeting and established a
record date of May 12, 1995 for purposes of such solicitation.
 
    On  June 8,  1995, at a  special meeting  of the AMSERV  Board of Directors,
Batchelder informed  the AMSERV  Board that  Batchelder was  continuing its  due
diligence review of Stockbridge and York, and in a separate part of the meeting,
Mr.  Clarke and  Mr. Cummings  made a  presentation regarding  the background of
Stockbridge and its business objectives  with respect to a business  combination
involving  York and AMSERV. The AMSERV Board again requested from Messrs. Clarke
and Cummings audited financial statements for York, a financing commitment and a
review of current  long-term debt, before  the AMSERV Board  could evaluate  the
proposed merger.
 
    Subsequently  in  June  1995,  the  AMSERV  Board  entered  into  a  Renewed
Standstill Agreement  with Stockbridge,  extending the  standstill period  until
August  10, 1995,  and set at  Stockbridge's request  a third record  date for a
consent solicitation of June 16, 1995.
 
    On August 10, 1995, at a quarterly meeting of the AMSERV Board of Directors,
Batchelder updated  the AMSERV  Board by  telephone that  all of  the  requested
information  from  Stockbridge  regarding  York  had  still  not  been received.
Stockbridge provided  the AMSERV  Board with  audited financial  statements  for
Stockbridge and a preliminary financing arrangement. However, Stockbridge failed
to provide the requested information regarding York, including audited financial
statements,  and a firm financing commitment. Batchelder repeatedly informed Mr.
Clarke both before and after the August  10, 1995 meeting that the AMSERV  Board
was  still  waiting  for  the  requested  information  and  that,  without  such
information, Stockbridge had not satisfied all aspects of the AMSERV Board's due
diligence review.
 
    By letter dated September 18, 1995, Stockbridge indicated its intent to  act
by  written consent and  requested that the  AMSERV Board set  a record date for
such consent.
 
    On October 18, 1995, the AMSERV Board announced its intention to broaden its
review of potential business  combinations by expanding  the group of  potential
merger partners and including transactions involving consideration consisting of
cash  or a  combination of  cash and  securities, and  to invite  Stockbridge to
participate on a fair and equal  basis with other participants in such  process.
Also  on October  18, 1995,  AMSERV entered  into an  agreement with Stockbridge
pursuant to which Stockbridge withdrew the written notice delivered to AMSERV on
September 18, 1995  and agreed not  to commence any  other consent  solicitation
with  respect to AMSERV  or deliver any  other such notice  until the earlier of
January 1, 1996 or the conclusion of the process by which the AMSERV Board would
consider potential business combinations involving AMSERV.
 
    STAR is continually exploring possible acquisitions of comparable  companies
in  the  health  care business  in  furtherance  of its  strategic  objective of
acquiring companies that provide  Home Care services  in the geographic  regions
currently  serviced by STAR as well as  in areas not currently serviced by STAR.
As discussed  elsewhere, since  1992  STAR has  expanded  its home  health  care
business  through a series of acquisitions.  Such acquisitions have allowed STAR
to provide its  health care  services more efficiently  while reducing  marginal
costs.  Prior to commencing discussions regarding  the Merger, however, STAR was
not considering  any  specific acquisitions  or  other strategic  alliances.  On
October  24, 1995, Larry A.  Bear of Bear &  Company, a business consulting firm
that provides investment advice for  STAR, independently initiated a  discussion
with  Mr. Mora. STAR was  unaware of such discussions  and such discussions were
not authorized by STAR. At that time Mr. Bear suggested to Mr. Mora that he knew
of a  company that  would be  a good  potential merger  partner for  AMSERV.  On
October  27, 1995, Mr.  Bear spoke with  Stephen Sternbach, the  Chairman of the
Board and President of STAR, to ascertain whether STAR would be interested in  a
possible  merger with AMSERV. While Mr. Sternbach  was aware of AMSERV, and STAR
had received a packet of information regarding AMSERV in October 1992, prior  to
Mr. Sternbach's discussion
 
                                       28
<PAGE>
with  Mr. Bear  STAR had  not otherwise considered  AMSERV as  a possible merger
partner. Mr. Sternbach  advised Mr. Bear  that STAR was  always interested in  a
possible  acquisition, if  such acquisition could  be beneficial  to STAR. Later
that day, after receiving an initial indication of interest from Mr.  Sternbach,
Mr. Bear put Mr. Sternbach in contact with a representative of Batchelder.
 
    On  November 13,  1995, Stockbridge  submitted to  the AMSERV  Board what it
characterized as a "pre-emptive" proposal. Such proposal consisted of a business
combination between AMSERV and York whereby  Stockbridge would own 27.5% of  the
combined  company.  The board  of  directors of  the  combined company  would be
composed of five members -- two selected by Stockbridge, two incumbents, one  of
which  would be Mr. Mora, and one  non-affiliated director to be selected by the
other four directors.  Under the  proposal, Mr.  Clarke and  Mr. Cummings  would
enter  into employment agreements with the  combined company to be President and
Chief Executive Officer, respectively, at  base salaries not to exceed  $100,000
each.  Mr.  Cummings also  would  serve as  Chairman  of the  Board. Stockbridge
believed that,  as a  "pre-emptive"  proposal, its  offer  was so  favorable  to
AMSERV's  shareholders that the AMSERV Board should terminate its review process
and no longer accept any other proposals.
 
    On November  17,  1995  STAR  and  AMSERV  entered  into  a  confidentiality
agreement,  pursuant to which STAR was provided with copies of AMSERV's periodic
reports as  well as  certain  internal projections  prepared  by AMSERV  in  the
ordinary  course of  its business  and not in  contemplation of  the Merger; the
materials also included  historical information  about AMSERV  and its  business
(the "Evaluation Materials").
 
    At  a  special meeting  held  on December  1,  1995, after  discussions with
Batchelder, the  AMSERV  Board  decided  that  Stockbridge's  proposal  was  not
"pre-emptive"  and requested that Batchelder inform Mr. Clarke that the proposal
would be evaluated  later along with  other proposals that  were expected to  be
received  in accordance  with the review  process previously  established by the
AMSERV Board.
 
    On December 7, 1995, Mr. Sternbach  met with a representative of  Batchelder
to  discuss  the possibility  of  a merger  of STAR  and  AMSERV. Prior  to such
meeting, Mr. Sternbach had  been provided with  the Evaluation Materials.  Later
that  day Mr. Sternbach met with Mr.  Mora and the Batchelder representative. At
that time they discussed the respective business strategies of the companies  in
an  attempt to determine whether it would  be in their respective best interests
to proceed with informal discussions regarding a merger. They also discussed the
respective companies' office locations, the types of Home Care services provided
by each company,  the compatibility  of the  two companies'  businesses and  the
companies'  sales and earnings projections for fiscal 1996. On behalf of AMSERV,
Mr. Mora expressed a preference that any combination be structured as a tax-free
stock transaction. Mr. Sternbach expressed on  behalf of STAR a desire that  any
transaction  qualify as a pooling of interests for accounting purposes. Mr. Mora
explained to  Mr.  Sternbach that  on  October 18,  1996  the AMSERV  Board  had
announced its intention to broaden its review of potential business combinations
by  expanding the group of potential  merger partners beyond Stockbridge and its
affiliates and including transactions involving consideration consisting of cash
or a combination of cash and securities, and that AMSERV had invited Stockbridge
to participate  on  a fair  and  equal basis  with  other participants  in  such
process. Mr. Mora further explained that the AMSERV Board had announced that the
auction  process would be completed  by late January 1996  and emphasized to Mr.
Sternbach the importance of  STAR's submitting any proposal  it might make on  a
timely  basis. They concluded their talks  by discussing the possibility of STAR
offering one share of  STAR Common Stock  for each 2.8  shares of AMSERV  Common
Stock. No offer, however, was made at such time.
 
    Mr. Sternbach met with William Fellerman, Chief Financial Officer of STAR on
numerous  occasions  during  the period  after  Mr. Sternbach  had  received the
Evaluation Materials and prior  to the time STAR  made its first offer.  Messrs.
Fellerman  and Sternbach concluded  that the addition  of AMSERV's operations to
those of STAR would add up to $13 million in additional revenues. Of this amount
approximately 75% would be attributable to Medicaid payments which are generally
paid within 40 days of the date that such amounts are billed. Messrs.  Fellerman
and   Sternbach  concluded  that   this  increase  in   revenue  would  increase
 
                                       29
<PAGE>
STAR's cash  flows,  reduce  its  financial leverage  and  improve  its  overall
financial  position and results of operation. They also believed that they could
achieve significant cost savings by  the elimination of certain operations  that
would become redundant upon consummation of the Merger. Mr. Fellerman identified
approximately  $1.2  million  in selling,  general  and  administrative expenses
(consisting  of  approximately  $640,000  in  back  office,  administrative  and
executive  salaries,  $50,000  in  rent, telephone  and  utilities,  $130,000 in
professional fees, $60,000 in investor  relations and compliance fees,  $250,000
in insurance and $40,000 in other office expenses) that could be eliminated as a
result  of the increased efficiencies and  economies of scale that were expected
to result from  the Merger.  Messrs. Fellerman and  Sternbach determined,  based
upon  their analysis of the  combined entity, that they would  be able to pay to
the shareholders of AMSERV between 0.4167 and 0.3333 shares of STAR Common Stock
for each share of AMSERV Common Stock without the acquisition being dilutive  to
the  earnings  of  the  STAR shareholders.  Accordingly,  Messrs.  Sternbach and
Fellerman concluded that an  acquisition of AMSERV would  be beneficial to  STAR
and  the  STAR  shareholders  if  such  acquisition  could  be  accomplished  by
exchanging one share of STAR Common Stock for between 2.4 and 3 shares of AMSERV
Common Stock.  Except  for  the  analysis conducted  by  Messrs.  Sternbach  and
Fellerman, no other analysis was conducted by STAR in connection with the merger
negotiations.  Mr.  Sternbach decided  to commence  the negotiation  process for
AMSERV by offering slightly less than the high end of the acceptable range.
 
    On December  21,  1995, Mr.  Sternbach  commenced negotiations  regarding  a
proposed merger, whereby the AMSERV shareholders would receive one share of STAR
Common  Stock for each 2.8  shares of AMSERV Common  Stock (an exchange ratio of
0.3571 shares of STAR  Common Stock per share  of AMSERV Common Stock).  Further
negotiations  took place between Mr. Sternbach and Mr. Mora and in late December
1995 STAR offered one share of STAR  Common Stock for each 2.5 shares of  AMSERV
Common  Stock (a 0.4000 exchange ratio). Mr.  Mora expressed his belief that the
exchange ratio proposed  by STAR  did not adequately  reflect AMSERV's  earnings
contribution  to the combined company.  Following telephone negotiating sessions
in late  December 1995  and  early January  1996,  STAR eventually  revised  its
proposal,  offering one  share of  STAR Common  Stock for  each 2.445  shares of
AMSERV Common  Stock (a  0.4090  exchange ratio).  This  amount was  within  the
acceptable  range originally set by Messrs.  Sternbach and Fellerman and was the
first offer by STAR deemed acceptable to AMSERV. Mr. Sternbach advised Mr.  Mora
that such offer was contingent upon the approval of the STAR Board of Directors.
Mr.  Mora also advised Mr.  Sternbach that the STAR  offer would be submitted to
the Board of Directors of AMSERV for consideration. As described below, the STAR
Board and  the AMSERV  Board  ultimately considered  and approved  the  proposed
exchange  ratio, along with the other terms  of the Merger Agreement, at special
meetings held on February 8 and 9, 1996, respectively.
 
    In connection  with the  review  process, Batchelder  distributed  materials
regarding  AMSERV  to  interested  parties  across  the  country  and  solicited
proposals for potential business combinations. In response to such solicitation,
AMSERV received six proposals. Despite a written request, Batchelder received no
response from Stockbridge for a "best  and final" proposal to include among  the
group.  Nonetheless, the AMSERV Board decided to consider Stockbridge's original
proposal submitted  on November  13,  1995 as  its  "best and  final"  proposal,
bringing the total number of proposals under consideration to seven.
 
    From November 1995 to January 1996, the AMSERV Board, with the assistance of
Batchelder,  carefully  considered each  of the  seven proposals  (including the
possibility of a merger with STAR) in an attempt to select the best proposal. In
January 1996, the AMSERV Board selected  the STAR proposal as the proposal  most
favorable  to  AMSERV's  shareholders  and  authorized  Batchelder  and AMSERV's
officers to commence negotiations with respect to the STAR proposal. It was  not
until  later, however, at a special meeting of the AMSERV Board held on February
9, 1996, that the STAR  proposal was determined to be  fair to, and in the  best
interests of, the shareholders of AMSERV.
 
    The  material terms  of the six  proposals which the  AMSERV Board rejected,
including Stockbridge's proposal but excluding the STAR proposal (Proposal  #7),
and  Batchelder's analysis of each  proposal are set out  below. With respect to
the private company proposals (I.E., Proposals #1 through #4 below),  Batchelder
 
                                       30
<PAGE>
analyzed  each of the proposals on  a relative valuation basis, which considered
the relative contribution of each company to the projected revenues, net income,
assets and  net  worth of  each  respective combined  company.  Batchelder  also
considered  private company discount factors with respect to such proposals, but
did not determine any  per share valuation (as  the information provided by  the
relative  valuation analysis described below  was deemed sufficient for purposes
of evaluating the private company  proposals from a financial standpoint).  With
respect  to  the public  company proposals  (I.E., Proposals  #5 and  #6 below),
Batchelder did consider  the valuation of  each proposal on  a per share  basis,
together with the historical prices and trading volumes of each public company's
common stock.
 
    Proposal  #1 (Stockbridge's proposal): Stockbridge sought to merge York with
AMSERV in a transaction to  be accounted for as  a pooling of interests  whereby
Stockbridge  (as the sole shareholder of York) would receive 27.5% of the common
stock  of  the  combined  company   which,  when  combined  with   Stockbridge's
currently-owned  shares of York  and AMSERV, would  result in Stockbridge owning
approximately 33% of  the combined  company and current  shareholders of  AMSERV
owning  the remaining 67%. The board of  directors of the combined company would
be composed of five members -- two selected by Stockbridge, two incumbents,  one
of  which would be Mr.  Mora, and one non-affiliated  director to be selected by
the other  four  directors. Mr.  Clarke  and  Mr. Cummings,  two  principals  of
Stockbridge, would enter into employment agreements with the combined company to
be  President and Chief Executive Officer, respectively, at base salaries not to
exceed $100,000 each. Mr.  Cummings also would serve  as Chairman of the  Board.
The  proposal  required that  (i) AMSERV  immediately cease  soliciting business
combinations as of December 4, 1995 and (ii) the outstanding preferred stock  of
York  be redeemed  prior to the  merger (which redemption  would create negative
book value for York of approximately $1.7 million). The proposal was non-binding
and subject to due diligence.
 
    In its  analysis  of  the  Stockbridge  proposal,  Batchelder  compared  the
exchange  ratio proposed by  Stockbridge to the exchange  ratios implied by 1995
and projected 1996 net income for  York and AMSERV. Batchelder's analysis  based
on  1995 and projected 1996  net income for York  and AMSERV resulted in implied
share  ownership  interests  for  AMSERV   shareholders  of  49.3%  and   62.4%,
respectively,  compared to the proposed exchange ratio of 72.5%. Batchelder also
analyzed certain  relative contributions  of  York and  AMSERV to  the  proposed
combined  company. AMSERV contributed 73%, 73% and 78% of the combined company's
revenues for the years 1993, 1994 and  1995, respectively, and 22%, 22% and  46%
of the combined company's EBITDA (as defined below) for the years 1993, 1994 and
1995,  respectively. AMSERV's pre-tax and net income contributions were negative
for the years 1993 and  1994. Batchelder determined that AMSERV's  shareholders'
equity  contributions for 1995 exceeded 100% because York's pro forma book value
was negative  and that  AMSERV's contributions  to projected  1996 revenues  and
EBITDA  were 80% and 59%, respectively. Batchelder also derived implied exchange
ratios using estimated  private market multiples  of 4x and  5x 1995 EBITDA  for
both  companies, which resulted in implied  share ownership interests for AMSERV
shareholders of 83% and 73%, respectively.
 
    Proposal #2: a private company in  the health care industry sought to  merge
with AMSERV in a pooling of interests transaction whereby such company would own
80%  of the combined  company and current  shareholders of AMSERV  would own the
remaining 20%.  The proposal  contemplated a  restructured management  team  and
board of directors and was non-binding and subject to due diligence.
 
    In  its  analysis of  Proposal #2,  Batchelder  compared the  exchange ratio
proposed by  the private  company to  the exchange  ratios implied  by 1995  and
projected  1996  net income  for the  private  company and  AMSERV. Batchelder's
analysis based on 1995 and projected 1996 net income for the private company and
AMSERV resulted in implied share ownership interests for AMSERV shareholders  of
100%  and 27.1%, respectively,  compared to the proposed  exchange ratio of 20%.
Batchelder also analyzed certain relative  contributions of the private  company
to  the proposed combined  company. AMSERV contributed  19%, 18% and  26% of the
combined company's revenues for the years 1993, 1994 and 1995, respectively, and
14%, 5% and 61% of  the combined company's EBIDTA for  the years 1993, 1994  and
1995,  respectively. AMSERV's pre-tax and net income contributions were negative
for the years 1993 and 1994. Batchelder determined that
 
                                       31
<PAGE>
AMSERV's contributions  to projected  1996 revenues  and EBITDA  were both  28%.
Batchelder  also derived implied exchange  ratios using estimated private market
multiples of  4x  and 5x  1995  EBITDA for  both  companies, which  resulted  in
negative equity values for the private company.
 
    Proposal  #3: a private company in the  health care industry sought a merger
with AMSERV in a  pooling of interests transaction  whereby each of the  private
company  and AMSERV would own 50% of  the combined company. The proposal assumed
that the board of  directors of the combined  company would consist of  AMSERV's
present  directors and  that the two  principal officers of  the private company
would be issued employment agreements. The proposal was non-binding and  subject
to due diligence.
 
    In  its  analysis of  Proposal #3,  Batchelder  compared the  exchange ratio
proposed by  the private  company to  the exchange  ratios implied  by 1995  and
projected  1996  net income  for the  private  company and  AMSERV. Batchelder's
analysis based on 1995 and projected 1996 net income for the private company and
AMSERV resulted in implied share ownership interests for AMSERV shareholders  of
3.9%  and 37.3%, respectively,  compared to the proposed  exchange ratio of 50%.
Batchelder also analyzed certain relative  contributions of the private  company
to the proposed combined company. AMSERV contributed 31% and 40% of the combined
company's  revenues for the years 1994 and 1995, respectively, and 6% and 22% of
the combined  company's  EBIDTA  for  the years  1994  and  1995,  respectively.
AMSERV's  pre-tax and net income contributions were  negative for 1994 and 4% in
both cases in 1995. Batchelder determined that AMSERV's equity contribution  was
60%  for 1995. AMSERV's contributions to projected 1996 revenues and EBITDA were
42% and 41%, respectively. Batchelder also derived implied exchange ratios using
estimated private market multiples of 4x and 5x 1995 EBITDA for both  companies,
which  resulted in implied share ownership  interests for AMSERV shareholders of
24% in both cases.
 
    Proposal #4: a  private company in  the food processing  industry sought  to
merge  with AMSERV  in a  pooling of  interests transaction  whereby the private
company would own  82.5% of  the combined  company and  current shareholders  of
AMSERV  would  own  the remaining  17.5%.  The  proposal did  not  specify board
composition and was non-binding and subject to due diligence.
 
    In its  analysis of  Proposal  #4, Batchelder  compared the  exchange  ratio
proposed  by the  private company  to the  exchange ratios  implied by  1995 and
projected 1996  net income  for  the private  company and  AMSERV.  Batchelder's
analysis based on 1995 and projected 1996 net income for the private company and
AMSERV  resulted in implied share ownership interests for AMSERV shareholders of
2.3% and 21.5%, respectively, compared to the proposed exchange ratio of  17.5%.
Batchelder  also analyzed certain relative  contributions of the private company
to the proposed combined company. AMSERV contributed 14% and 17% of the combined
company's revenues for the years 1994 and  1995, respectively, and 6% and 8%  of
the  combined  company's  EBIDTA  for the  years  1994  and  1995, respectively.
AMSERV's pre-tax and net income contributions  were negative for 1994 and 2%  in
both  cases in 1995. Batchelder determined that AMSERV's equity contribution was
82% for 1995. AMSERV's contributions to projected 1996 revenues and EBITDA  were
19% and 18%, respectively. Batchelder also derived implied exchange ratios using
estimated  private market multiples of 4x and 5x 1995 EBITDA for both companies,
which resulted in implied share  ownership interests for AMSERV shareholders  of
14% and 13%, respectively.
 
    Proposal  #5: a  public company in  the chemical industry,  with some health
care operations,  sought  a combination  with  AMSERV through  either  an  asset
purchase  or a stock purchase. The consideration would involve either the public
company's common stock,  cash or  a combination of  common stock  and cash.  The
proposal  was to acquire AMSERV for a valuation, adjusted for certain contingent
liabilities, including certain  existing employment  agreements (see  "EXECUTIVE
COMPENSATION  OF AMSERV --  Employment Agreements"), which  ranged from $2.22 to
$3.11 per share of AMSERV Common Stock  (based on the closing sale price of  the
public  company's common stock on January 5, 1996). The proposal did not specify
board composition and was non-binding and subject to due diligence.
 
                                       32
<PAGE>
    Batchelder  derived estimates  of the net  value per share  of AMSERV Common
Stock by subtracting  estimated contingent liabilities  associated with  certain
existing  employment agreements from  the proposed aggregate  value for AMSERV's
equity and dividing  the difference by  the approximately 3,373,000  outstanding
shares  of AMSERV Common Stock. Batchelder then compared the estimated net value
per share range of  $2.22 to $3.11  to the $2.75 market  price of AMSERV  Common
Stock  on January  8, 1996,  yielding a discount  of 19%  and a  premium of 13%,
respectively, to such price.
 
    Proposal #6: a public  company in the health  care industry sought to  merge
with  AMSERV in  a pooling of  interests transaction whereby  the public company
would own approximately 83.4% of  the combined company and current  shareholders
of  AMSERV would own the remaining 16.6%.  The proposal was valued, based on the
closing sale price of the public company's  common stock on January 5, 1996,  at
$1.12  per share of AMSERV Common Stock. On January 17, 1996, the public company
revised its proposal, reducing  the public company's  ownership of the  combined
company  to 77%,  with the current  shareholders of AMSERV  owning the remaining
23%. The revised proposal  was valued, based  on the closing  sale price of  the
public  company's common stock on January 5,  1996, at $1.67 per share of AMSERV
Common Stock. The  revised proposal assumed  a new management  team but did  not
specify board composition. It was non-binding and subject to due diligence.
 
    Batchelder  derived  an  implied  market  value  of  $3.77  million  for the
consideration proposed by the public company. The public company had proposed an
exchange of 1.675 million shares of its own capital stock (which traded at $2.25
on January 8, 1996) for all of  the outstanding shares of AMSERV capital  stock.
This  implied value represented a discount of  59% to the January 8, 1996 market
capitalization of AMSERV.
 
    The AMSERV Board  adopted Batchelder's  financial analysis  with respect  to
each  of the proposals and considered other factors which it deemed appropriate,
including strategic fit with AMSERV and management's experience and  reputation,
in reviewing each of the proposals. Although Batchelder provided information and
analyses  relating  to the  proposals to  the AMSERV  Board, Batchelder  did not
recommend any of the proposals. Based on the information provided by  Batchelder
and its own evaluation of the proposals, the AMSERV Board determined that STAR's
proposal  was  the  most  favorable to  AMSERV's  shareholders.  STAR's proposal
represented a 12%  premium to  the market  price of  AMSERV Common  Stock as  of
January  5, 1996,  while the  competing public  company proposals  represented a
range of (i) a 19% discount to a 13% premium to market (Proposal #5 above),  and
(ii)  a 39% discount to market (Proposal #6 above). In addition, STAR's proposal
was deemed the most favorable in the aggregate in terms of relative contribution
to the projected  revenues, net  income, assets and  net worth  of the  combined
company, strategic fit with AMSERV and experience and reputation of management.
 
    By  letter dated January 8, 1996,  Stockbridge again indicated its intent to
act by written consent and requested that the AMSERV Board set a record date for
such consent.  On  January  16,  1996,  Stockbridge  filed  preliminary  consent
materials  with the Commission seeking to remove the five current members of the
AMSERV Board and to replace each member with a Stockbridge nominee.
 
    On January  9,  1996, following  extensive  negotiations, the  AMSERV  Board
confirmed  that  the  proposal from  STAR  was  the most  favorable  to AMSERV's
shareholders and  authorized AMSERV  to negotiate  and enter  into a  letter  of
intent to merge with STAR. A formal letter of intent was executed by the parties
on  January 17, 1996. Such  letter of intent was  subsequently superseded by the
Original Merger Agreement and then the Merger Agreement. The Merger Agreement is
described under the caption "THE MERGER AGREEMENT."
 
    On January 19,  1996, the AMSERV  Board held a  special meeting pursuant  to
AMSERV's  by-laws  to  establish a  record  date for  purposes  of Stockbridge's
renewed consent solicitation.  The AMSERV  Board set  January 29,  1996 as  such
record date.
 
    Also  on January 19, 1996, the AMSERV Board, in an effort to assure that all
of AMSERV's shareholders receive  fair and equal treatment  in the event of  any
proposed takeover of AMSERV, adopted a
 
                                       33
<PAGE>
Shareholder  Rights Plan. Under  the Plan, the AMSERV  Board declared a dividend
distribution of one Preferred Share Purchase Right on each outstanding share  of
AMSERV  Common Stock. Each right entitles  shareholders to buy one one-hundredth
of a share  of newly  created Class C  Junior Participating  Preferred Stock  of
AMSERV  at an  exercise price  of $12.50.  The rights  will be  exercisable if a
person or group (other  than, among others,  STAR) acquires 10%  or more of  the
AMSERV  Common Stock or announces  a tender offer for 10%  or more of the AMSERV
Common Stock. The AMSERV Board will be entitled to redeem the rights held by all
shareholders at $.001 per right at any time before the tenth day after a  person
has  acquired 10% or  more of the  outstanding AMSERV Common  Stock. If a person
acquires 10% or  more of the  outstanding AMSERV Common  Stock, each right  will
entitle  its holder to  purchase, at the right's  then-current exercise price, a
number of shares of  AMSERV Common Stock  having a market value  at the time  of
twice the right's exercise price. Rights held by the 10% holder will become void
and will not be exercisable to purchase shares at the bargain purchase price. If
AMSERV  is acquired in a merger  or other business combination transaction which
has not been approved by the AMSERV Board, each right will entitle its holder to
purchase, at the right's then-current exercise price, a number of the  acquiring
company's  common shares having a market value at that time of twice the right's
exercise price.
 
    During the  week of  January  22, 1996,  representatives from  STAR  visited
AMSERV's  corporate  offices for  a  due diligence  review.  During the  week of
January 29,  1996,  a representative  of  Batchelder visited  STAR's  accounting
offices,  and on February 2 and 5,  1996, Mr. Mora visited STAR's accounting and
corporate  offices,  for  due  diligence  reviews.  During  these  visits,   the
representatives  of  each  company  reviewed  the  other  company's  operations,
personnel policies and financial results to date.
 
    At a special meeting  of the STAR  Board of Directors,  held on February  8,
1996,  the STAR Board  approved the terms  of the Original  Merger Agreement and
determined that  the terms  were fair  to, and  in the  best interests  of,  the
shareholders of STAR.
 
    At  a special meeting of  the AMSERV Board of  Directors held on February 9,
1996,  after  discussions  with   Batchelder  (which  included  receiving   from
Batchelder  an opinion relating  to the fairness  of the proposed  merger from a
financial point of view)  and AMSERV's outside legal  counsel, the AMSERV  Board
approved  the terms  of the  Original Merger  Agreement and  determined that the
terms were fair to, and in the best interests of, the shareholders of AMSERV.
 
    By letter dated February 21, 1996, Stockbridge reiterated its intent to  act
by written consent and requested that the AMSERV Board set a new record date for
such  consent. On February  29, 1996, the AMSERV  Board established February 29,
1996 as such new record date.
 
    On February 22, 1996, Stockbridge commenced litigation against AMSERV in the
United  States  District  Court  for  the  District  of  Massachusetts.  In  its
complaint, Stockbridge alleges that AMSERV breached the terms of the October 18,
1995  agreement between AMSERV and Stockbridge  (described above) by refusing to
deal with Stockbridge's "pre-emptive" proposal  in a fair and equitable  manner.
The  relief  sought  by  Stockbridge  includes  reimbursement  of  Stockbridge's
expenses in  the  amount  of $125,000,  unspecified  damages  which  Stockbridge
estimates  at more than $275,000 and attorneys' fees. AMSERV denies, and intends
to  vigorously  defend  against,  Stockbridge's  claims  in  this  lawsuit.  See
"BUSINESS OF AMSERV -- Legal Proceedings."
 
    On  or  about  March  7, 1996,  Stockbridge  commenced  its  solicitation of
consents to remove the five current members  of the AMSERV Board and to  replace
each  member with a Stockbridge  nominee. On March 13,  1996, AMSERV commenced a
solicitation  of  revocations  of  consent  in  opposition  to  the  Stockbridge
solicitation.
 
    By  letter dated March 13, 1996, Stockbridge once again indicated its intent
to act by written consent and requested  that the AMSERV Board set a new  record
date for such consent. On March 15, 1996, the AMSERV Board established March 15,
1996 as such new record date.
 
                                       34
<PAGE>
    On  April 9,  1996, AMSERV  received notice  of a  lawsuit which Stockbridge
filed against AMSERV in the Court of  Chancery of the State of Delaware for  New
Castle County requesting that the Court enter judgment summarily ordering AMSERV
to  conduct  an  annual meeting  of  shareholders  for the  purpose  of electing
directors and conducting such other business as may properly be conducted at the
meeting. AMSERV intends to seek a dismissal  of such action on the basis of  its
scheduling an annual meeting of shareholders to consider and vote on the Merger,
to  elect directors and to ratify the selection of Ernst & Young LLP as AMSERV's
independent public accountants. See "BUSINESS OF AMSERV -- Legal Proceedings."
 
    On March 29, 1996, AMSERV received  from Stockbridge a letter purporting  to
be  an offer to purchase  for $3.00 per share in  cash all outstanding shares of
AMSERV Common Stock. According  to the letter,  Stockbridge's proposal would  be
structured  as a merger to be voted on by AMSERV's shareholders. By letter dated
April 2, 1996,  AMSERV responded to  Stockbridge's proposal and  stated that  in
order  for the  AMSERV Board  to properly  evaluate the  proposal it  would need
detailed answers to various questions regarding, among other things, whether the
proposal is subject to  financing and, if so,  the source(s) of such  financing,
and  the proposed structure  of the merger,  including what entity  would be the
survivor. By letter dated  April 12, 1996  addressed to Batchelder,  Stockbridge
stated  that it  intended to restructure  its proposal  in the form  of a tender
offer for any and all outstanding shares of AMSERV and that Stockbridge expected
to submit evidence of irrevocable financing  commitments to AMSERV on or  before
April  24,  1996.  AMSERV received  no  such evidence  of  irrevocable financing
commitments from Stockbridge, nor any other information regarding  Stockbridge's
proposal, on April 24, 1996 or at any time before or after such date.
 
    On April 18, 1996, AMSERV commenced litigation in the United States District
Court for the Southern District of California against Stockbridge and certain of
its  affiliates  for numerous  violations  of Sections  13(d)  and 14(a)  of the
Exchange Act. Among the violations listed by AMSERV are the defendants'  failure
to  disclose  all  of  the  members  of  Stockbridge's  Section  13(d)  "group,"
misstatements in Stockbridge's consent solicitation materials, and Stockbridge's
failure to  disclose its  offer to  purchase for  $3.00 per  share any  and  all
outstanding  shares  of  AMSERV  Common Stock.  AMSERV  seeks  injunctive relief
against Stockbridge's  solicitation  of consents,  and  a declaration  that  the
Stockbridge  group has and must publicly disclose beneficial ownership of 10% or
more of the AMSERV Common Stock, thereby triggering AMSERV's Shareholder  Rights
Plan.  On  April  19, 1996,  Stockbridge  filed  an amended  Schedule  13D which
included incomplete information regarding its $3.00 per share offer. On May  28,
1996,  Stockbridge, together with certain of its affiliates, filed an answer and
counterclaim relating to the litigation filed by AMSERV in the Southern District
of  California.   The  counterclaim   names  both   AMSERV  and   Mr.  Mora   as
counterdefendants  and is structured as a  derivative claim brought on behalf of
AMSERV against  Mr. Mora.  The counterclaim  alleges that  Mr. Mora  engaged  in
activities  in breach of his fiduciary duties  and that the directors of AMSERV,
including  Mr.  Mora,  undertook  a  series  of  actions  for  the  purpose   of
entrenchment. AMSERV and Mr. Mora deny, and intend to vigorously defend against,
the  claims  made by  Stockbridge and  its affiliates  in the  counterclaim. See
"BUSINESS OF AMSERV -- Legal Proceedings."
 
    On May 14,  1996, the  consent solicitation which  Stockbridge commenced  on
March  7, 1996  to remove the  five current members  of the AMSERV  Board and to
replace each member  with a  Stockbridge nominee terminated  in accordance  with
Delaware  law. No written  consents were delivered to  AMSERV in connection with
such solicitation, other than the initial consent delivered by Stockbridge  with
respect  to  one  share  of  AMSERV  Common  Stock  owned  by  the  President of
Stockbridge.
 
    Subsequent to the termination of  Stockbridge's consent solicitation on  May
14,  1996, Stockbridge commenced negotiations with AMSERV in an effort to settle
the ongoing litigation between AMSERV  and Stockbridge. AMSERV and  Stockbridge,
with  the  assistance  of  Batchelder,  have  continued  to  discuss  a possible
settlement since that time,  but no definitive agreement  has yet been  reached.
AMSERV  intends  to  continue  to  pursue  a  resolution  of  its  disputes with
Stockbridge. See "BUSINESS OF AMSERV -- Legal Proceedings."
 
                                       35
<PAGE>
    On July 17, 1996,  the Boards of  Directors of STAR,  AMSERV and Merger  Sub
approved  the Amendment, pursuant to which (i) Mr. Katten, a current director of
AMSERV, rather than Mr. Mora,  would be appointed to  the Board of Directors  of
STAR  following the Effective Time and nominated  for election to the STAR Board
at each of the next  two annual meetings of shareholders  of STAR, and (ii)  the
date  on which either STAR  or AMSERV may terminate  the Merger Agreement if the
Merger shall not have been consummated prior thereto was extended from July  31,
1996  to September  15, 1996.  The change  regarding Mr.  Mora stemmed  from Mr.
Mora's personal desires. The extension of  the termination date was prompted  by
the relatively late mailing date of this Joint Proxy Statement/Prospectus, which
resulted  in a later than expected date  for the STAR Meeting and AMSERV Meeting
of August 23, 1996. Other than with respect to these two matters, the  Amendment
ratified  and confirmed the Original Merger  Agreement in all respects. Both Mr.
Mora and  Mr.  Katten  abstained from  voting  on  the Amendment  due  to  their
respective interests in the Merger.
 
STAR'S REASONS FOR THE MERGER; RECOMMENDATION OF THE STAR BOARD
 
    The  STAR  Board of  Directors  believes that  the  Merger will  further its
strategic objective of acquiring  companies that provide  Home Care services  in
the  geographic regions currently serviced by STAR  as well as opening new areas
of expansion. Accordingly,  STAR's Board of  Directors has unanimously  approved
the  Merger Agreement and  unanimously recommends that  the shareholders of STAR
vote in favor of the Merger for the following reasons:
 
        (i) that  since  both STAR  and  AMSERV are  engaged  in the  Home  Care
    services  business,  the businesses  of STAR  and AMSERV  are complementary.
    AMSERV has five locations in New Jersey and one in Ohio, the acquisition  of
    which will allow STAR to expand its existing regional Home Care business, as
    well  as open up a  new geographic area. The  Board also considered the high
    quality of the AMSERV personnel at the operating level and how the  addition
    of such personnel could positively enhance STAR's own image;
 
        (ii)  STAR's  Board  of  Directors  concurred  with  STAR's management's
    conclusion, based  upon  the analysis  conducted  by Messrs.  Steinbach  and
    Fellerman and described above in "Background of the Merger," that the Merger
    would  result in the addition of up to $13 million in additional revenues to
    STAR of which approximately 75%  would be attributable to Medicaid  payments
    which  are generally paid within  40 days of the  date that such amounts are
    billed; this would increase STAR's cash flow, reduce its financial  leverage
    and improve STAR's overall financial position and results of operations;
 
       (iii)  that,  since AMSERV  is  also engaged  in  the Home  Care services
    business, the Merger  fits within  STAR's strategic  objective of  acquiring
    companies  that  provide  Home  Care  services  in  the  geographic  regions
    currently serviced by  STAR as well  as in areas  not currently serviced  by
    STAR.  The STAR Board made special note of AMSERV's operations in New Jersey
    and Ohio,  which  it  concluded  could readily  be  integrated  into  STAR's
    operations in New York;
 
        (iv)  that,  based  upon  Messrs.  Sternbach  and  Fellerman's financial
    analysis of AMSERV, STAR  will be able to  achieve significant cost  savings
    and  economies of scale and  will be able to operate  AMSERV, as part of the
    combined entity, in  a manner more  efficient and more  profitable than  its
    current operations since, after the Merger, many of the redundant operations
    that  are  currently  engaged  in  by AMSERV  will  be  eliminated  and such
    functions will be carried out by STAR's existing organization; specifically,
    STAR will be  able to manage  AMSERV's New Jersey  and Ohio operations  with
    existing STAR personnel;
 
        (v)  STAR's  Board  of  Directors  concurred  with  STAR's  management's
    determination that  approximately  $1.2  million  in  selling,  general  and
    administrative expense (consisting of approximately $640,000 in back office,
    administrative  and  executive  salaries,  $50,000  in  rent,  telephone and
    utilities,
 
                                       36
<PAGE>
    $130,000 in professional fees, $60,000 in investor relations and  compliance
    fees,  $250,000 in insurance  and $40,000 in other  office expense) could be
    eliminated as a  result of the  increased efficiencies that  the STAR  Board
    expected would result from the Merger;
 
        (vi)  that, after reviewing the Evaluation Materials and considering the
    financial  analysis  conducted  by  Messrs.  Sternbach  and  Fellerman   and
    described  above in  "Background of  the Merger,"  the Merger  would provide
    certain synergistic benefits through the consolidation of certain  redundant
    corporate functions in a manner consistent with STAR's strategy of providing
    the highest quality of care at the lowest cost;
 
       (vii)  that the terms  and conditions of  the Merger Agreement, including
    the Exchange Ratio,  generally are  fair to STAR's  shareholders. The  Board
    concluded  that, based upon the increased revenues to STAR that would result
    from the Merger,  the issuance  of the STAR  Common Stock  would likely  not
    result in a dilution of STAR's earnings per share. The Board also considered
    that  the Exchange Ratio was  within the range that  had been established by
    Messrs. Sternbach and Fellerman  and described above  in "Background of  the
    Merger";
 
      (viii)   STAR's  Board  of  Directors  believed,  based  upon  preliminary
    discussions with STAR's auditors, that the Merger would be accounted for  as
    a pooling of interests for accounting purposes;
 
        (ix)   STAR's  Board  of  Directors  considered  the  existence  of  the
    Stockbridge consent solicitation  and AMSERV's  litigation with  Stockbridge
    which  are described above in "Background  of the Merger" but concluded that
    such matters would not  adversely impact STAR  because the Merger  Agreement
    places  restrictions on AMSERV's business pending  the closing of the Merger
    and requires  AMSERV to  pay  significant fees  and expenses  under  certain
    circumstances in the event of a termination of the Merger Agreement;
 
        (x)  STAR's Board of Directors considered  that the Exchange Ratio would
    be fixed and that  changes in the  relative share value  of AMSERV and  STAR
    Common  Stock could materially  affect the value of  the consideration to be
    paid by STAR for AMSERV but concluded  that such risk was outweighed by  the
    possible benefits to be achieved by STAR from the Merger;
 
        (xi)  STAR's Board of  Directors considered the  factors described above
    under the  heading  "RISK  FACTORS"  but  concluded  that  such  risks  were
    outweighed  by  the  possible  benefits  to be  achieved  by  STAR  from the
    consummation of the Merger; and
 
       (xii) STAR's Board of Directors considered the agreement to honor certain
    agreements between AMSERV and Eugene J. Mora described below in "THE  MERGER
    --  Interests of Certain Persons in  the Merger; Conflicts of Interest," but
    concluded that the costs associated with such agreements were outweighed  by
    the possible benefits to be achieved from the Merger.
 
    After  considering all of  the foregoing reasons,  STAR's Board of Directors
concluded that a combination with AMSERV, on  the terms set forth in the  Merger
Agreement,  is in the best interests of the shareholders of STAR. The STAR Board
of Directors concluded that the favorable factors set forth in items (i) through
(viii) outweighed the negative  factors set forth in  items (ix) through  (xii).
Due to the wide variety of factors considered in conjunction with the evaluation
of  the Merger, the STAR Board of Directors  did not find it practicable to, and
did not,  quantify  or otherwise  attempt  to  assign relative  weights  to  the
specific  factors  considered  in  rendering  its  determination.  The  Board of
Directors of STAR did not conduct an independent financial analysis in  arriving
at  its conclusion but  relied upon the analysis  conducted by Messrs. Sternbach
and Fellerman and described above in "Background of the Merger." STAR's Board of
Directors did  not believe  that it  was necessary  to and  did not,  therefore,
commission  a  financial advisor  opinion in  connection with  its deliberations
regarding the Merger. The STAR Board  believed that it had adequate  information
to analyze the merits of the Merger.
 
                                       37
<PAGE>
    THE BOARD OF DIRECTORS OF STAR UNANIMOUSLY HAS DETERMINED THAT THE MERGER IS
FAIR  TO, AND IN THE  BEST INTERESTS OF, SHAREHOLDERS  OF STAR, HAS APPROVED THE
MERGER AGREEMENT AND UNANIMOUSLY  RECOMMENDS THAT SHAREHOLDERS  OF STAR VOTE  TO
APPROVE  AND  ADOPT  THE  MERGER  AGREEMENT  AND  THE  TRANSACTIONS CONTEMPLATED
THEREBY.
 
AMSERV'S REASONS FOR THE MERGER; RECOMMENDATION OF THE AMSERV BOARD
 
    In reaching its determination  that the Merger  is fair to  and in the  best
interests  of  the shareholders  of  AMSERV, the  Board  of Directors  of AMSERV
consulted with AMSERV's  management, financial  advisor and  legal counsel.  Set
forth  below  are  the material  factors  that  the AMSERV  Board  considered in
reaching this determination:
 
        (i) the  AMSERV  Board's  review  and  analysis  of  AMSERV's  business,
    operations, financial conditions, earnings and prospects. Following a review
    of  such factors,  the AMSERV Board  had a better  understanding of AMSERV's
    value, allowing  the  AMSERV  Board  to  make  the  determination  that  the
    consideration  to  be  received  by  AMSERV's  shareholders  in  the  Merger
    reflected an appropriate valuation of AMSERV;
 
        (ii) the current and prospective economic and competitive environment in
    the health  care  industry.  The  AMSERV Board  recognized  a  trend  toward
    consolidation  in the  health care  field and  took note  of certain factors
    responsible for the  trend. The  AMSERV Board  noted, for  example, a  drive
    toward  greater  efficiency  resulting  in  lower  cost  operations  and the
    advantages of greater  geographic diversification. The  Board believed  that
    the  Merger  would  result  in  cost  savings  because  certain  duplicative
    administrative expenses  would  be  eliminated  and  in  greater  geographic
    diversity  because  the  states in  which  AMSERV and  STAR  conducted their
    businesses did not overlap.  As a result, the  AMSERV Board determined  that
    the  combined  company would  be  better equipped  to  compete in  a rapidly
    consolidating health care industry;
 
       (iii) the  possible  alternatives to  a  sale of  AMSERV,  including  the
    prospects   of  continuing  to   operate  AMSERV,  the   value  to  AMSERV's
    shareholders of such alternatives and the timing and likelihood of  actually
    achieving   additional   value  from   these  alternatives,   including  the
    possibility that AMSERV's near-term  performance might not  lead to a  stock
    price  having  a  higher  value than  the  Merger  Consideration.  The Board
    determined, based  on  a review  of  such  alternatives, that  none  of  the
    alternatives  appeared  to  offer  the same  prospects  for  success  as the
    proposed combination with STAR;
 
        (iv) that  the Merger  was agreed  to  by the  AMSERV Board  only  after
    issuance  by AMSERV  of a  press release  regarding its  review of strategic
    alternatives, significant publicity concerning the  review by AMSERV of  its
    strategic  alternatives and  the possibility of  AMSERV being  sold, and the
    passage of  a significant  period  of time  between  issuance of  the  press
    release  and  approval of  the Merger  Agreement. The  publicity surrounding
    AMSERV's "auction" process assured the Board that all interested parties had
    opportunities to submit bids and suggested to the Board that it was unlikely
    that AMSERV would receive any proposals more favorable than STAR's proposal;
 
        (v) that AMSERV  had contact with  a large number  of potential  bidders
    over  an extended period of time in a lengthy auction process, providing the
    AMSERV Board with a better understanding of the value of AMSERV. The  AMSERV
    Board's  improved understanding  of the  value of  AMSERV helped  the AMSERV
    Board  determine  that  the  Merger  Consideration  was  fair  to   AMSERV's
    shareholders;
 
        (vi)  that the Merger Consideration represents  a premium for the AMSERV
    Common Stock of (A) approximately 12%  over the closing price on January  5,
    1996,  the date used by Batchelder in connection with its financial analysis
    of merger proposals involving AMSERV, (B) approximately 15% over the closing
    price on  January  17,  1996, the  last  trading  day prior  to  the  public
    announcement  of  the execution  of the  letter of  intent to  merge between
    AMSERV and  STAR,  and (C)  approximately  15%  over the  closing  price  on
    February  9, 1996, the last trading day  prior to the public announcement of
    the execution of the Merger Agreement;
 
                                       38
<PAGE>
       (vii) that, in  light of  the range of  proposals made  by third  parties
    during the auction process, STAR's proposal included a premium for obtaining
    control of AMSERV;
 
      (viii)  the possibility  that, as  a result  of the  fixed exchange ratio,
    changes in the relative share prices  of AMSERV and STAR Common Stock  could
    materially  affect,  positively  or  negatively,  the  value  of  the Merger
    Consideration to be received by AMSERV shareholders. Since February 9, 1996,
    the relative share prices of AMSERV and STAR Common Stock have fluctuated in
    such a way  that at times  the market price  of one share  of AMSERV  Common
    Stock  has exceeded the market  value of .4090 shares  of STAR Common Stock.
    The Merger Consideration represented a  premium for the AMSERV Common  Stock
    of  10% over the closing price on July 17, 1996. The AMSERV Board intends to
    continue to monitor the share prices of AMSERV and STAR Common Stock, and if
    and when necessary,  the AMSERV  Board will  determine, with  the advice  of
    outside  counsel,  whether its  fiduciary  obligations under  applicable law
    require it to modify its determination that the terms of the Merger are fair
    to AMSERV's  shareholders.  Such  fiduciary obligations  would  require  the
    AMSERV   Board  to  modify  its   fairness  determination  if  circumstances
    surrounding the  Merger  changed  such that  the  AMSERV  Board  determined,
    pursuant  to the exercise of its good  faith judgment, that the terms of the
    Merger were no longer in the best interests of AMSERV's shareholders. If the
    AMSERV Board determines that its fiduciary duties require a modification  of
    its  fairness determination, STAR and AMSERV  will file an amendment to this
    Joint Proxy  Statement/Prospectus  to  disclose such  modification.  To  the
    extent that a vote has been taken prior to such modification, both companies
    will resolicit the votes of their respective shareholders;
 
        (ix)  the financial presentation of Batchelder, and Batchelder's opinion
    as of  February 9,  1996  that the  terms  of the  Merger  are fair  to  the
    shareholders  of AMSERV from a financial point of view, as discussed in "THE
    MERGER -- Financial Advisor; Fairness Opinion";
 
        (x) that Batchelder is not required to reaffirm its fairness opinion  at
    any  time  after  February 9,  1996.  The  Board recognized  that  without a
    bring-down of Batchelder's opinion prior to consummation of the Merger,  the
    AMSERV  Board  could not  be certain  whether changed  circumstances between
    February 9, 1996 and consummation of the Merger would have caused Batchelder
    to rescind  its  opinion that  the  terms of  the  Merger are  fair  to  the
    shareholders of AMSERV from a financial point of view;
 
        (xi)  certain terms of the  Merger Agreement, including the restrictions
    on the conduct of AMSERV's  business pending closing, conditions to  closing
    and the significant fees and expenses that would become payable in the event
    of  a termination of  the Merger Agreement  under certain circumstances (see
    "THE MERGER  AGREEMENT").  The AMSERV  Board  determined that  such  factors
    placed  added  burdens on  AMSERV, making  it more  difficult for  AMSERV to
    generate short-term returns for its shareholders;
 
       (xii)  that  the  Merger  Agreement  prohibits  AMSERV  from  soliciting,
    encouraging  or initiating any additional proposals from third parties. Such
    prohibitions placed limits on AMSERV's  management's ability to continue  to
    seek  out bidders that would make proposals  to acquire or merge with AMSERV
    that were potentially more favorable than the proposal made by STAR;
 
      (xiii) that the  Merger Agreement permits  AMSERV to consider  unsolicited
    third  party  offers  to  acquire  AMSERV  and  permits  AMSERV  to  provide
    information to and negotiate with such  parties and to terminate the  Merger
    Agreement,  subject to the payment of significant fees and expenses to STAR,
    if prior to the  Effective Time the AMSERV  Board withdraws or modifies  its
    recommendation  in order to permit AMSERV  to execute a definitive agreement
    relating to a proposal for AMSERV  that the AMSERV Board determines is  more
    favorable  to shareholders than the  transactions contemplated by the Merger
    Agreement. Despite the significant  fees and expenses  payable to STAR,  the
    AMSERV  Board determined that the terms  of the Merger Agreement relating to
    consideration  of  unsolicited  third  party  proposals  were  favorable  to
    AMSERV's shareholders. If AMSERV were to receive a
 
                                       39
<PAGE>
    proposal  more favorable than  STAR's, the AMSERV  Board could terminate the
    Merger Agreement and  recommend the  new proposal  to AMSERV's  shareholders
    without the prospect of breach of contract liability to STAR;
 
       (xiv)  that the Merger  Agreement permits the AMSERV  Board to modify its
    determination that  the Merger  is fair  to  and in  the best  interests  of
    AMSERV's  shareholders  to  the  extent required  by  the  Board's fiduciary
    obligations under applicable law. The Board determined that if circumstances
    surrounding the  Merger, including  the relative  share prices  of STAR  and
    AMSERV,  changed in  a materially  adverse manner,  the Board  would have an
    opportunity to withdraw its determination that  the terms of the Merger  are
    fair to and in the best interests of AMSERV's shareholders;
 
       (xv)  that  the Merger  Agreement includes  as  a condition  precedent to
    AMSERV's obligation to  consummate the Merger  (which condition AMSERV  does
    not  intend to waive) that the Merger  qualify as a pooling of interests for
    accounting purposes. The AMSERV Board  did not evaluate the significance  of
    pooling  of  interests accounting  in  isolation. Rather,  the  AMSERV Board
    considered the fact that an essential  term of STAR's proposal was that  the
    Merger  qualify for pooling of interests accounting. After consultation with
    AMSERV's outside auditors, the AMSERV  Board believed that the Merger  would
    so  qualify. If  the Merger  were not  to qualify  for pooling  of interests
    accounting and  if STAR  were to  waive  the condition  that the  Merger  so
    qualify,  the AMSERV  Board would then  address the question  of whether the
    Merger was still fair to and in the best interests of AMSERV's shareholders.
    If the Merger were not to qualify for pooling of interests accounting and if
    both STAR and AMSERV were to waive the condition that the Merger so qualify,
    STAR  and  AMSERV  would  file   with  the  Commission  and  distribute   to
    shareholders   an  updated  and  revised  Joint  Proxy  Statement/Prospectus
    disclosing such development and updating the fairness determinations of  the
    STAR  Board and AMSERV Board. To the extent that a vote has been taken prior
    to a waiver  by both companies  of the pooling  requirement, both  companies
    would resolicit the votes of their respective shareholders;
 
       (xvi) that the Merger Agreement was approved by the unanimous vote of the
    AMSERV  Board (other than Mr. Mora, who  did not vote on the Original Merger
    Agreement or the  Amendment due to  the expected assumption  by STAR of  the
    provisions  set forth in  Mr. Mora's employment  agreements, and Mr. Katten,
    who did not vote on the Amendment due to his expected position as a director
    of STAR following the Merger);
 
      (xvii) that certain members of AMSERV's management and AMSERV's Board have
    certain interests in the Merger that  are in addition to their interests  as
    shareholders  of AMSERV generally. The AMSERV  Board took note of Mr. Mora's
    severance  package,  which  entitles  Mr.  Mora  to  certain  benefits  upon
    termination  of his employment  without cause, and the  fact that the Merger
    Agreement originally provided that Mr. Mora would become a director of  STAR
    following  the  Merger  (although  the  Merger  Agreement,  as  amended, now
    provides that Mr. Katten,  instead of Mr. Mora,  would become a director  of
    STAR  following the Merger). Likewise, the  AMSERV Board recognized that Ms.
    Hodge and Ms.  Anderson have  severance packages entitling  them to  certain
    benefits  upon termination of employment  following a "board approved change
    in control." In addition, the  AMSERV Board noted the  fact that all of  the
    members  of the  AMSERV Board, as  well as  Ms. Hodge and  Ms. Anderson, had
    received stock options that become exercisable upon a change in control. The
    AMSERV Board also noted that STAR has agreed to insure and guaranty that all
    indemnification provisions in AMSERV's Certificate of Incorporation, by-laws
    and in certain agreements would not be amended, repealed or modified in  any
    manner  and that it had agreed  to maintain directors and officers insurance
    policies at  their existing  levels. Although  certain members  of  AMSERV's
    management  and AMSERV's Board, as noted above, have interests in the Merger
    that are in addition  to, and may conflict  with, the interests of  AMSERV's
    shareholders,  the AMSERV Board did not believe that such interests affected
    its evaluation  of the  Merger,  as such  interests principally  arise  from
    preexisting  contractual obligations  of AMSERV,  which were  expected to be
    assumed   in    any    change    of   control    transaction.    See    "THE
 
                                       40
<PAGE>
    MERGER  --  Interests  of  Certain  Persons  in  the  Merger;  Conflicts  of
    Interest,"  "THE  MERGER  AGREEMENT  --  Treatment  of  Stock  Options"  and
    "EXECUTIVE COMPENSATION OF AMSERV -- Employment Agreements";
 
      (xviii)  that the AMSERV Board did not use a special committee to evaluate
    the Merger. The  use of a  special committee may  have offered  shareholders
    additional  assurances that the AMSERV Board acted without regard to certain
    interests AMSERV Board members have in the Merger apart from their interests
    as shareholders. Nevertheless, the AMSERV  Board believed that its  decision
    not  to use a special committee did not affect its evaluation of the Merger,
    because, in the  AMSERV Board's  opinion, the benefits  associated with  the
    AMSERV Board's ability to utilize and rely upon the collective knowledge and
    expertise of the full AMSERV Board outweighed any possible benefits from the
    use  of a special committee. See "THE MERGER -- Interests of Certain Persons
    in the Merger; Conflicts of Interest";
 
       (xix) that STAR is  a public company with  current estimated revenue  for
    fiscal  1996 of $35 million, that STAR has experienced substantial growth in
    revenues and net income in recent years  and that its management team has  a
    proven  track record in the Home Care  industry. The Board found that STAR's
    potential for  continued growth  and proven  management team  increased  the
    likelihood  that the combined company would  be successful and that AMSERV's
    shareholders would  benefit accordingly,  through  their ownership  of  STAR
    Common Stock;
 
       (xx)  the  synergies and  cost savings  offered  by the  consolidation of
    certain corporate functions. The AMSERV  Board determined that AMSERV  could
    be  more profitably operated following  the elimination of certain redundant
    operations;
 
       (xxi) the expectation that the Merger will afford AMSERV shareholders the
    opportunity to receive STAR Common Stock in a transaction that is nontaxable
    for federal income tax purposes. The AMSERV Board recognized that the Merger
    Consideration would be more valuable to AMSERV's shareholders if the receipt
    of such consideration would not be treated as a taxable event;
 
      (xxii) that, pursuant to the Voting Agreement, Mr. Sternbach has agreed to
    vote (or cause to be voted) the 847,155 shares (34.4%) of STAR Common  Stock
    of which he is the direct beneficial owner in favor of the Merger. The Board
    determined  that  the  existence  of  the  Voting  Agreement  increased  the
    likelihood that STAR's shareholders would approve the transaction; and
 
      (xxiii) the AMSERV Board recognized that consummation of the Merger  would
    subject  AMSERV's  shareholders  to  certain  additional  risks,  including,
    without limitation, increased  dependence on third  party payors  (including
    the Medicare and Medicaid programs and private insurance), the concentration
    of  approximately 28.1% of the  voting power of the  combined company in the
    hands of Mr. Sternbach and the possibility that the Merger would not qualify
    as  a  tax-free  reorganization.  For  additional  risks  to  which   AMSERV
    shareholders  would be subject following consummation of the Merger, see the
    factors listed above under the heading "RISK FACTORS."
 
    The foregoing discussion addresses all of the material factors considered by
the AMSERV Board in connection with its evaluation of the Merger. In view of the
wide variety of factors, the  AMSERV Board did not  find it practicable to,  and
did  not,  quantify  or otherwise  attempt  to  assign relative  weights  to the
foregoing factors or  determine that  any factor was  of particular  importance.
Rather,  the AMSERV Board viewed its  position and recommendation as being based
on the  totality  of the  information  presented to  and  considered by  it.  On
balance,  however, the AMSERV Board  viewed the factors set  forth in items (i),
(ii), (iii), (iv), (v),  (vi), (vii), (ix), (xiii),  (xiv), (xv), (xvi),  (xix),
(xx),  (xxi) and (xxii) as  favorable to its decision,  the factors set forth in
items (x),  (xi), (xii)  and (xxiii)  as  unfavorable to  its decision  and  the
factors  set  forth  in items  (viii),  (xvii)  and (xviii)  as  neutral  to its
decision.
 
                                       41
<PAGE>
    THE BOARD OF DIRECTORS OF AMSERV HAS DETERMINED THAT THE MERGER IS FAIR  TO,
AND  IN THE  BEST INTERESTS OF,  AMSERV'S SHAREHOLDERS, HAS  APPROVED THE MERGER
AGREEMENT  AND  UNANIMOUSLY  RECOMMENDS  THAT  AMSERV'S  SHAREHOLDERS  VOTE  FOR
APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.
 
FINANCIAL ADVISOR; FAIRNESS OPINION
 
    On  April  1,  1995, AMSERV  retained  Batchelder  to assist  AMSERV  in its
consideration and  evaluation  of  possible  transactions.  Batchelder  assisted
AMSERV's  Board in its  review of, and  participated in the  negotiation of, the
Merger. In January 1996, AMSERV's Board asked Batchelder to render an opinion as
to the fairness  of the  Merger to  the holders of  AMSERV Common  Stock from  a
financial  point  of  view. AMSERV's  Board  did  not place  limitations  on the
investigations to be  made or  the procedures to  be followed  by Batchelder  in
preparing  and rendering its  opinion. Batchelder did not  recommend the form or
amount of consideration to be paid  in the Merger, which was determined  through
arm's length negotiations between AMSERV and STAR.
 
    On February 9, 1996, Batchelder delivered its written opinion that the terms
of  the Merger are fair to the shareholders  of AMSERV from a financial point of
view.
 
    The full  text  of the  written  opinion  of Batchelder,  which  sets  forth
assumptions made, matters considered and limitations on the review undertaken in
connection   with  the  opinion,  is  attached  as  Appendix  B  hereto  and  is
incorporated herein by reference.  Shareholders are urged  to, and should,  read
such  opinion in its entirety and  consider it carefully. The Batchelder opinion
is directed to AMSERV's  Board and does not  constitute a recommendation to  any
individual  shareholder as  to how  such shareholder  should vote  at the AMSERV
Meeting. The  summary of  Batchelder's opinion  set forth  in this  Joint  Proxy
Statement/Prospectus  is qualified in its entirety by reference to the full text
of such opinion.
 
    Batchelder relied  upon and  assumed  without independent  verification  the
accuracy  and completeness of  all publicly available  financial information and
all financial information furnished or otherwise communicated to it by STAR  and
AMSERV.  Batchelder did not make any appraisal  of the assets of such companies.
Batchelder does not express any opinion as to what the value of the STAR  Common
Stock actually will be when issued to AMSERV shareholders pursuant to the Merger
or the price at any time at which the STAR Common Stock will trade. Batchelder's
opinion  does not  address the  underlying business  decision to  enter into the
Merger.
 
    Batchelder also assumed that (i) the Merger will be accounted for under  the
pooling  of interests method of  accounting; (ii) the Merger  will be a tax-free
reorganization; (iii)  the  Mora  Agreements  represent  valid  and  enforceable
obligations  of  AMSERV  and  the  payments  to  him  following  his anticipated
termination without cause by STAR following the consummation of the Merger  will
be deductible for federal income tax purposes; and (iv) any material liabilities
(contingent  or otherwise, known or unknown) of AMSERV and STAR are set forth in
the consolidated  financial statements  of AMSERV  and STAR,  respectively.  For
purposes  of  its analysis,  Batchelder considered  AMSERV's obligations  to the
holders of AMSERV Class  B Preferred as material  liabilities. The existence  of
the  AMSERV Class B Preferred  and the fact that it  would not be converted into
any other  security in  connection with  the  Merger had  no special  impact  on
Batchelder's  consideration of the Exchange Ratio or its fairness determination.
Batchelder assumes no responsibility for the legal, tax or accounting aspects of
the Merger.
 
    In connection with its opinion, Batchelder reviewed, among other things, (i)
the Merger  Agreement;  (ii)  the  Voting Agreement;  (iii)  the  most  recently
available  Annual Reports to  Shareholders and Annual Reports  on Forms 10-K and
10-KSB of AMSERV  and STAR;  (iv) certain  interim reports  to shareholders  and
Quarterly Reports on Forms 10-Q and 10-QSB of AMSERV and STAR; (v) certain other
communications  from AMSERV  and STAR  to their  shareholders; and  (vi) certain
internal financial analyses and forecasts of  AMSERV and STAR prepared by  their
managements.  Batchelder also  met with  the management  teams of  both STAR and
AMSERV to discuss their respective businesses and business prospects. Batchelder
assumed that all financial  projections provided by STAR  and AMSERV were  based
upon
 
                                       42
<PAGE>
assumptions  reflecting the best,  currently available estimates  and good faith
judgments of management as to the future performance of AMSERV and STAR and that
the managements of AMSERV and STAR do  not have any information or beliefs  that
would  make the projections  materially misleading. Batchelder  assumed that the
operating benefits  contemplated by  the Merger  as reflected  in the  financial
projections  provided  by  AMSERV  and  STAR  will  be  achieved.  In  addition,
Batchelder reviewed financial information for the pro forma combined company  of
STAR  and  AMSERV, compared  historical  and projected  financial  and operating
performance of STAR and AMSERV with certain other publicly held entities in  the
health care industry, and reviewed acquisitions and mergers of certain companies
in  the home health  industry for which sufficient  data was publicly available.
Batchelder determined  that the  AMSERV shareholders'  equity interests  in  the
combined  company  compared  favorably  with  its  contribution  and  comparable
acquisition transaction analyses.
 
    Because the Merger is a merger of  the equity interests of AMSERV and  STAR,
Batchelder  assigned the most weight to the contribution analysis and relatively
less weight to comparable public company and comparable acquisition  transaction
methodologies. Batchelder, however, did not attempt to quantify the weight given
to  any one factor; rather it made  qualitative judgments as to the significance
and relevance of each analysis and factor. Accordingly, Batchelder believes that
its analyses must be considered as a whole and that considering any portions  of
such analyses or such factors without considering all analyses and factors could
create an incomplete or misleading view of the process Batchelder undertook.
 
    CONTRIBUTION  ANALYSIS.   Batchelder  analyzed the  contribution of  each of
AMSERV and STAR to, among other  things, the revenues, earnings before  interest
and  taxes,  depreciation  and amortization  ("EBITDA"),  operating  income, net
income and book value of the  pro forma combined company. This analysis  showed,
among  other things, that for the three fiscal years ended May 31, 1995 for STAR
and June 24, 1995  for AMSERV, STAR averaged  an historical contribution to  the
pro  forma combined company of approximately 73%  of revenues and 82% of EBITDA.
For fiscal 1995, STAR contributed approximately 70% of revenues, 79% of  EBITDA,
99%  of operating income, 96% of pre-tax income and 93% of net income (excluding
discontinued operations  and  effects of  accounting  changes) of  the  combined
company.  For the two  years prior to  fiscal 1995, AMSERV  had negative average
operating income, pre-tax income and  net income before discontinued  operations
of  $193,000, $110,000 and  $68,000, respectively. During  this two-year period,
STAR had positive  average operating income  of approximately $540,000,  pre-tax
income of $555,000 and net income before accounting changes of $313,000.
 
    Batchelder's  analysis showed that for the first half of fiscal 1996, AMSERV
contributed 34% of net income of  the combined company. In addition, based  upon
the  internal projections prepared  by AMSERV and  STAR in the  normal course of
operating their  respective  businesses  and without  taking  into  account  any
operating benefits from the Merger, AMSERV would contribute 37% of the projected
fiscal  1996 net income  of the combined  company. Based upon  the relative book
values at  the  end of  the  first quarter  of  fiscal 1996  for  each  company,
Batchelder's  analysis showed AMSERV  would contribute 35% of  the book value of
the combined companies.
 
    The Merger Agreement provides for a share ownership ratio pursuant to  which
AMSERV  shareholders will receive  approximately 33.5% of the  equity of the pro
forma combined company.  AMSERV shareholders' equity  ownership interest in  the
combined  company exceeded AMSERV's average relative contributions to historical
revenues, EBITDA,  operating  income,  pre-tax  income and  net  income  of  the
combined  company for fiscal years 1993, 1994 and 1995. The AMSERV shareholders'
relative equity interest would  be below AMSERV's  relative contribution to  the
book  value of the combined company as of the end of the first quarter of fiscal
1996, and the AMSERV shareholders' equity interest in the combined company would
be slightly below  AMSERV's relative contribution  to net income  for the  first
half of fiscal 1996. Batchelder, however, noted that the net income contribution
of AMSERV for the first half of fiscal 1996 and projected fiscal 1996 of 34% and
37%,  respectively,  did not  include contemplated  operating benefits  from the
Merger.
 
                                       43
<PAGE>
    COMPARABLE PUBLIC COMPANY METHODOLOGY.   Batchelder compared the  historical
and  projected  financial and  operating performances  of  STAR and  AMSERV with
certain other publicly held entities in the health care industry. Such  publicly
held entities included Caretenders Healthcorp., Healthdyne, Inc., Hooper Holmes,
Inc.,   Hospital  Staffing  Services,  Inc.,   In  Home  Health,  Inc.,  Medical
Innovations, Inc., Pediatric  Services of America,  Inc., Staff Builders,  Inc.,
The  Care  Group,  Inc., Transworld  Home  Healthcare, Inc.,  and  U.S. Homecare
Corporation. Batchelder examined certain  measures of the comparable  companies'
historical   and  projected   financial  performance,   financial  position  and
historical stock price.  Using this information,  Batchelder compared shares  of
AMSERV  Common Stock to those  of AMSERV's peers in  the health care industry in
terms of  their relation  to  certain per  share  measures and  other  financial
indicators.  Batchelder advised  the AMSERV  Board that  there are  no companies
directly comparable to  AMSERV and  that its analysis  had to  be considered  in
light of that qualification.
 
    Five  of the  eleven comparable  companies had  publicly available estimated
earnings per share  for 1995 and  1996. These companies  were Healthdyne,  Inc.,
Hooper  Holmes, Inc., In  Home Health Inc., Pediatric  Services of America, Inc.
and Staff Builders, Inc. Batchelder did not rely on Healthdyne, Inc.'s estimated
earnings per  share in  its  analysis because  Healthdyne's multiple  for  1995,
218.8x,  fell significantly  outside the range  of multiples for  the other four
companies. Batchelder used  the four  remaining companies'  estimates to  derive
forward  price-earnings multiples for such companies. These multiples were 35.6x
for 1995 and 15.2x for  1996 for Hooper Holmes, Inc.,  22.5x for 1995 and  13.2x
for  1996  for In  Home Health,  Inc., 19.3x  for  1995 and  15.6x for  1996 for
Pediatric Services of America,  Inc. and 11.4x  for 1995 and  8.5x for 1996  for
Staff Builders, Inc. Batchelder noted that Hooper Holmes' 1996 earnings estimate
was  235%  of  its 1995  earnings  estimate,  and that  its  1996 price-earnings
multiple was relatively more comparable to the other companies' 1996  multiples.
Therefore,   Batchelder  excluded   from  its   analysis  Hooper   Holmes'  1995
price-earnings multiple.
 
    Using this data,  Batchelder multiplied AMSERV's  and STAR's estimated  1996
net  income by price-earnings multiples ranging  from 8.5 to 22.5 times earnings
and derived estimated relative equity market  valuations for AMSERV and STAR  of
$5.066  million and  $8.781 million, respectively,  in the low  case and $13.410
million and  $23.243 million,  respectively, in  the high  case. Both  of  these
relative  value analyses result in  an implied share ownership  ratio of 37% for
AMSERV  shareholders.  Batchelder  noted  that  its  comparable  public  company
analysis did not include contemplated operating benefits from the Merger.
 
    In  applying its comparable public company methodology, Batchelder relied on
its professional judgment in reviewing and considering differences in  financial
and operating characteristics of the comparable companies and other factors that
could  affect the  public trading  value of  the comparable  companies and their
business segments. Batchelder noted  that the methodology  should have the  same
result  as the contribution  analysis of estimated  1996 income because  it is a
strictly arithmetic exercise using the same estimates of net income.
 
    COMPARABLE ACQUISITION TRANSACTION METHODOLOGY.   As a supporting  analysis,
but  not as a  primary indication of  fairness, Batchelder reviewed acquisitions
and mergers  of  certain  companies  in  the  home  health  industry  for  which
sufficient  data  upon  which  to  base  an  analysis  was  publicly  available.
Transactions reviewed  included the  merger of  Homedco Group,  Inc. with  Abbey
Healthcare  Group,  Inc.  to  form Apria  Healthcare;  the  acquisition  of Adia
Services, Inc. by Adia  SA; the acquisition of  IntegraCare, Inc. by  Integrated
Health  Service; and the  merger of Salick  Health Care, Inc.  with Zeneca Group
PLC.
 
    Of these four transactions, only one, the acquisition of IntegraCare,  Inc.,
was  reasonably comparable to the Merger based upon the size of the transaction.
Based upon  the financial  information which  was available  to Batchelder  with
respect to the IntegraCare, Inc. transaction, Batchelder applied the multiple of
acquisition  price to EBITDA of  10.6x and the multiple  of acquisition price to
net income of 17.4x in the  IntegraCare transaction to AMSERV's 1995 EBITDA  and
net  income  to  derive  implied  values  of  $4.54  million  and  $0.90 million
respectively, for  the  equity  of  AMSERV.  Batchelder  derived  implied  share
ownership  ratios of 17.23%  and 3.43% by  comparing the implied  values for the
equity of AMSERV to the $8.83 million value of
 
                                       44
<PAGE>
AMSERV implied by the Exchange Ratio of  0.4090 and the average price per  share
for  STAR Common Stock  for the thirty days  ending February 8,  1996 of $6 5/8.
This comparison indicated that the AMSERV shareholders' receipt of approximately
33.5%  of  the  combined  company's   common  stock  was  favorable  to   AMSERV
shareholders.  Batchelder  noted that  multiples  derived from  this transaction
supported its  opinion that  the  Merger is  fair, but  also  said that  it  was
inappropriate  to  draw  any conclusions  based  upon only  one  transaction. (A
similar analysis using the  median multiples of  the four transactions  reviewed
resulted in implied share ownership ratios of 16.09% and 4.39%.)
 
    Batchelder  proceeded to  derive implied  EBIDTA and  earnings multiples for
AMSERV using the  $8.83 million implied  value of AMSERV  and AMSERV's 1995  and
estimated  1996 EBIDTA  and net income.  The EBITDA multiples  derived from this
analysis were 20.7x and 7.9x, respectively, for 1995 and estimated 1996, and the
net income multiples were 169.8x and 14.8x, respectively, for 1995 and estimated
1996. Batchelder  then  compared  the  multiples it  had  derived  to  the  same
multiples  for the most  recent fiscal year  EBITDA and net  income for the four
transactions listed above. The  mean and median EBITDA  multiples were 9.1x  and
9.9x,  respectively, and the  mean and median earnings  multiples were 37.1x and
22.3x, respectively. The  EBITDA multiples  ranged from  6.4x to  12.0x and  the
earnings  multiples ranged from  17.4x to 68.1x.  Batchelder noted that AMSERV's
1995 multiples  compared  directly  with the  comparable  transaction  multiples
because  both sets of multiples were derived using trailing financial data. As a
result, Batchelder placed substantially more  weight on the 1995 multiples  than
on AMSERV's 1996 multiples.
 
    The  summary of Batchelder's analysis set forth above does not purport to be
a complete description of the analysis performed by Batchelder. The  preparation
of   a  fairness  opinion  is  a  complex  analytic  process  involving  various
determinations as  to the  most appropriate  and relevant  methods of  financial
analyses  and the application of these  methods to the particular circumstances,
and therefore, such analyses are not readily susceptible to summary description.
Batchelder notes its belief that its analyses must be considered as a whole  and
that  selecting portions of its analyses and  of the other factors considered by
it, without considering all factors and analyses, could create a misleading view
of the process underlying its opinion. In its analyses, Batchelder made  certain
assumptions  with respect to industry performance, general business and economic
conditions and other matters, many of which are beyond the control of AMSERV  or
STAR.  Any estimates contained therein are  not necessarily indicative of actual
values, which may vary significantly. Estimates of the relative financial values
of STAR and AMSERV do  not purport to be  appraisals or necessarily reflect  the
prices  of AMSERV Common  Stock and STAR  Common Stock upon  consummation of the
Merger, which may differ from their recent trading prices. Because such  matters
are  inherently uncertain, none of AMSERV,  STAR, Batchelder or any other person
assumes any  responsibility  for  such matters.  Batchelder's  opinion  and  its
financial  analyses  were  among  several factors  considered  by  the  Board of
Directors of AMSERV in its evaluation of the Merger and should not be viewed  as
determinative  of the views  of the Board  of Directors or  management of AMSERV
with respect to the proposed Merger.
 
    Batchelder is an investment banking firm engaged in, among other things, the
valuation of businesses  in connection with  mergers and acquisitions.  AMSERV's
Board selected Batchelder as its financial advisor based upon the recommendation
of  AMSERV's  outside  legal  counsel and  because  Batchelder  is  a nationally
recognized investment  banking  firm  and  the  principals  of  Batchelder  have
substantial  experience in transactions  similar to the  Merger and are familiar
with AMSERV and its business. Batchelder had not previously rendered services or
engaged in any transaction with AMSERV or its affiliates.
 
    Pursuant to the terms  of an engagement letter  dated April 1, 1995,  AMSERV
agreed  to pay Batchelder $200,000 for acting  as financial advisor to AMSERV in
connection with the various transactions  considered by AMSERV. AMSERV has  also
agreed  to  reimburse  Batchelder  for  its  reasonable  out-of-pocket expenses,
including all reasonable fees and disbursements of counsel, up to $10,000 and to
indemnify Batchelder  and certain  related persons  against certain  liabilities
relating  to or  arising out  of its  engagement, including  certain liabilities
under the  federal securities  laws. In  addition, pursuant  to the  terms of  a
subsequent  engagement letter dated September 1, 1995, AMSERV also agreed to pay
Batchelder an additional $250,000 subject to the consummation of the Merger.  No
additional    fees   will   be   paid   to   Batchelder   in   connection   with
 
                                       45
<PAGE>
the Merger.  Because the  engagement letter,  dated September  1, 1995,  between
AMSERV  and  Batchelder provides  for separate  consideration to  Batchelder for
rendering its fairness opinion and given the fact that a portion of Batchelder's
fee is  contingent upon  completion of  the Merger,  Batchelder arguably  has  a
conflict of interest in rendering a fairness opinion on the terms of the Merger.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    As indicated, the following sets forth Latham & Watkins' (counsel to AMSERV)
opinion  as to  the material  federal income tax  consequences of  the Merger to
holders of AMSERV  Common Stock  who hold their  shares as  capital assets.  The
discussion  is based on the  current provisions of the  Internal Revenue Code of
1986,  as  amended  (the  "Code"),  applicable  Treasury  Regulations,  judicial
authority  and  administrative rulings  and practice.  It  does not  address all
aspects of federal  income taxation that  may be relevant  to particular  AMSERV
shareholders  in light of their personal investment circumstances, or to certain
types of shareholders subject to special treatment under the federal income  tax
laws,   including,   without   limitation,   insurance   companies,   tax-exempt
organizations, financial institutions  or broker-dealers,  foreign persons,  and
shareholders  who  acquired  AMSERV Common  Stock  pursuant to  the  exercise of
employee  stock  options  or  otherwise  as  compensation.  In  addition,   this
discussion  does not  address the conversion  of AMSERV Options  into options to
purchase shares of  STAR Common Stock  pursuant to the  Merger. This  discussion
also  does  not address  the state,  local  or foreign  tax consequences  of the
Merger. There can  be no assurance  that the Internal  Revenue Service will  not
take  a contrary view to those expressed herein. No rulings have been or will be
requested from the Internal Revenue Service with respect to the tax consequences
of the  Merger. Moreover,  legislative, judicial  or administrative  changes  or
interpretations may be forthcoming that could alter or modify the statements and
conclusions set forth herein.
 
    HOLDERS  OF SHARES OF AMSERV COMMON STOCK ARE URGED TO CONSULT THEIR OWN TAX
ADVISORS AS TO THE  SPECIFIC TAX CONSEQUENCES TO  THEM OF THE MERGER,  INCLUDING
THE  APPLICABILITY AND EFFECT OF ANY FEDERAL, STATE, LOCAL AND FOREIGN TAX LAWS,
AND OF ANY CHANGES IN APPLICABLE TAX LAWS.
 
    Assuming the Merger  is consummated at  the Effective Time  pursuant to  the
terms  of the Merger Agreement, Latham & Watkins  is of the opinion (and, at the
Effective Time, will issue its opinion  to AMSERV) that the Merger will  qualify
as  a tax-free reorganization  under Section 368(a)(1)  of the Code  and that no
gain or loss will be recognized by a holder whose shares of AMSERV Common  Stock
are  converted into  and exchanged  for shares  of STAR  Common Stock  (with the
possible exception  of  shares of  AMSERV  Common  Stock acquired  by  a  holder
pursuant  to an  employee stock option  plan or other  compensation agreement in
anticipation of the Merger and except to the extent of any cash received in lieu
of fractional shares of STAR Common Stock). In addition, Latham & Watkins is  of
the  opinion that as  a result of the  Merger: (i) each  holder of AMSERV Common
Stock receiving cash in lieu of a fractional share of STAR Common Stock will  be
treated for federal income tax purposes as having received such fractional share
interest and as having sold it for the cash received, and will recognize capital
gain  or loss  (long- or  short-term depending  on whether  the holder's holding
period is more  or less  than 12  months) equal  to the  difference between  the
amount  of cash received and the portion of that holder's basis in the shares of
AMSERV Common Stock deemed exchanged for the fractional share interest; (ii) the
tax basis of  the STAR Common  Stock received  by the holders  of AMSERV  Common
Stock  will be equal to the basis  of the AMSERV Common Stock exchanged therefor
(except for the  basis attributable  to any  fractional share  interest in  STAR
Common Stock); and (iii) the holding period of the STAR Common Stock received by
the holders of AMSERV Common Stock will include the holding period of the AMSERV
Common Stock surrendered in exchange therefor.
 
    Latham   &  Watkins'   opinion  is   based  on   the  accuracy   of  certain
representations that it will receive from STAR and AMSERV at the Effective Time,
including the following: (i) the Merger  will be consummated in accordance  with
the  Merger  Agreement;  (ii) following  the  Merger, AMSERV  will  continue its
historic business or use a significant  portion of its historic business  assets
in a business; and (iii) the management of
 
                                       46
<PAGE>
AMSERV  knows of no plan or intention on  the part of the AMSERV shareholders to
dispose of a number of shares of  STAR Common Stock received in the Merger  that
would reduce the AMSERV shareholders' ownership of STAR Common Stock to a number
of  shares having a value, as of the date of the Merger, of less than 50% of the
value of all of the formerly outstanding stock of AMSERV as of the same date.
 
    If the  Merger  were  not  to  constitute  a  reorganization  under  Section
368(a)(1)  of the Code, each holder of  AMSERV Common Stock would recognize gain
or loss equal to the difference between the fair market value of the STAR Common
Stock received and cash received in lieu of fractional shares and such  holder's
basis in the shares of AMSERV Common Stock exchanged therefor. Such gain or loss
would  be long-term capital gain or loss, provided such shares had been held for
more than one year.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER; CONFLICTS OF INTEREST
 
    OFFICERS AND DIRECTORS OF  AMSERV.  Certain  members of AMSERV's  management
and  AMSERV's Board have certain interests in the Merger that are in addition to
and may  conflict  with  the  interests of  shareholders  of  AMSERV  generally.
AMSERV's Board was aware of and discussed these interests in connection with its
consideration  and approval of the Merger Agreement. In fact, Mr. Mora abstained
from voting on the Original Merger Agreement, and later abstained from voting on
the Amendment, due  to the  expected assumption by  STAR of  the provisions  set
forth  in the Mora Agreements. Mr. Katten abstained from voting on the Amendment
due to his  expected position as  a director  of STAR following  the Merger.  In
considering  the recommendation of the Board  in respect of the Merger Agreement
and the transactions contemplated thereby, AMSERV's shareholders should be aware
of these interests which may present  actual or potential conflicts of  interest
with respect to the Merger.
 
    Under  the Merger  Agreement, STAR  has agreed  to honor  the provisions set
forth in the Mora Agreements. Pursuant to the Mora Employment Agreement, if  Mr.
Mora  is terminated without  cause, AMSERV is  obligated to pay  to Mr. Mora the
compensation he  earned in  the final  year of  his employment  in each  of  the
immediately  following five years  and transfer to Mr.  Mora any individual life
insurance policies owned  by AMSERV.   In fiscal 1995,  Mr. Mora's  compensation
totaled approximately $300,000. See "EXECUTIVE COMPENSATION OF AMSERV." Assuming
Mr.  Mora is terminated  without cause and receives  compensation of $300,000 in
the final  year  of  his employment,  Mr.  Mora  would be  entitled  to  receive
$1,500,000  in the aggregate over the immediately following five years under the
Mora Employment Agreement (excluding the value of any individual life  insurance
policies  transferred to Mr. Mora). In the  event that such payments are made by
STAR pursuant to the Mora Employment  Agreement, there can be no assurance  that
such  payments will be  deductible for income  tax purposes for  the full amount
thereof. The Mora  Employment Agreement  includes covenants  which restrict  Mr.
Mora from certain business activities following termination of employment, for a
period of one year. The Mora Consulting Agreement provides that Mr. Mora will be
retained  as  a consultant  to AMSERV  for the  two years  immediately following
termination of his  employment for which  he will receive  $129,200 per year  in
compensation.  In  addition, pursuant  to a  resolution  approved by  the AMSERV
Board, AMSERV  is obligated  to continue  Mr. Mora's  health insurance  coverage
following his retirement.
 
    The  Merger Agreement provides that the parties understand that STAR and Mr.
Mora will  be  discussing  possible  modifications or  amendments  to  the  Mora
Agreements.  Such modifications or amendments may  not be entered into, however,
without the  mutual agreement  of STAR,  AMSERV  and Mr.  Mora and  unless  such
modifications  or amendments would not jeopardize  the ability of the parties to
treat the Merger as a tax free reorganization or to utilize pooling of  interest
accounting for accounting purposes.
 
    Leslie  Hodge, Secretary and Vice President -- Administration of AMSERV, and
Lori Anderson, Treasurer  and Controller  of AMSERV, are  parties to  employment
agreements with AMSERV which contain severance provisions under which the Merger
would constitute a "board approved change in control." As a result, if within 24
months following the consummation of the Merger, Ms. Hodge is terminated without
cause  or  Ms. Hodge  terminates her  employment for  good reason,  the combined
company will be obligated to (i) pay to Ms. Hodge a lump sum payment equal to 12
months of the highest monthly base salary received by
 
                                       47
<PAGE>
Ms. Hodge  in any  one of  the  past 60  months and  (ii) continue  Ms.  Hodge's
benefits for a period of 12 months. Similarly, if within 24 months following the
consummation  of the  Merger, Ms.  Anderson is  terminated without  cause or Ms.
Anderson terminates her employment for good reason, the combined company will be
obligated to (a) pay to Ms. Anderson a  lump sum payment equal to six months  of
the  highest monthly base salary received by Ms. Anderson in any one of the past
60 months and (b) continue Ms. Anderson's  benefits for a period of six  months.
Using  the highest monthly base  salaries received by each  of Ms. Hodge and Ms.
Anderson during the last 60 months, Ms. Hodge and Ms. Anderson would be entitled
to  $69,000  and  $23,568,  respectively,  upon  termination  without  cause  or
termination by either of them for good reason.
 
    Pursuant  to the AMSERV Stock Option Plan  and under the terms of the Merger
Agreement, all outstanding AMSERV Options, whether or not vested or exercisable,
will become exercisable  immediately prior  to the Effective  Time, will  remain
outstanding and will be assumed by STAR. The AMSERV Options assumed by STAR will
allow  their  holders to  purchase shares  of  STAR Common  Stock pursuant  to a
conversion ratio based upon the Exchange Ratio. As of July 17, 1996, options  to
acquire  228,266 shares of AMSERV Common Stock were outstanding under the AMSERV
Stock Option  Plan. Directors  and executive  officers of  AMSERV held,  in  the
aggregate,  non-qualified  stock options  granted pursuant  to the  AMSERV Stock
Option Plan to purchase 87,691 shares of AMSERV Common Stock at exercise  prices
ranging  from $1.00  to $3.125  per share.  The AMSERV  directors, including Mr.
Mora, Mr. Katten,  Mr. Robinton, Mr.  Rogers and Mr.  Spinelli, held options  to
purchase  35,000,  12,615, 12,615,  10,961, and  1,500  shares of  AMSERV Common
Stock, respectively. In  addition, Ms. Hodge  and Ms. Anderson  held options  to
purchase 5,000 and 10,000 shares of AMSERV Common Stock, respectively.
 
    Under  the terms  of the  Merger Agreement,  STAR has  agreed to  insure and
guaranty that any provision  with respect to indemnification  by AMSERV and  its
subsidiaries  existing  in favor  of any  present  or former  director, officer,
employee or  agent  of  AMSERV  or  an  AMSERV  subsidiary,  set  forth  in  the
Certificate  of  Incorporation  or by-laws  of  AMSERV and  its  subsidiaries or
pursuant to any  other agreements (including  insurance policies), will  survive
the  Merger, will not be amended, repealed  or modified in any manner that would
adversely affect  an indemnified  party, and  will continue  in full  force  and
effect  for a period of at least six years from the effectiveness of the Merger.
STAR has agreed to maintain  or retain the same  level of insurance coverage  as
currently maintained by AMSERV only (i) if it is available for an annual premium
not  in excess of 125% of  the last annual premium paid  by AMSERV or the AMSERV
subsidiaries prior to the date of the  Merger Agreement, and (ii) for six  years
after  the Effective Time. If such insurance were not available for 125% or less
of the amount of the last premium paid by AMSERV or its subsidiaries, STAR would
be obligated to  purchase as  much coverage  as possible  for an  amount not  to
exceed 125% of the last premium paid by AMSERV or its subsidiaries.
 
NO DISSENTERS' RIGHTS OF APPRAISAL
 
    Under  Section 262(b) of  the DGCL, holders  of AMSERV Common  Stock are not
entitled to  dissenters'  rights of  appraisal  in connection  with  the  Merger
because,  at the AMSERV Record Date, shares  of STAR Common Stock were quoted on
the Nasdaq National  Market. The STAR  Common Stock is  currently quoted on  the
Nasdaq National Market.
 
REGULATORY APPROVALS
 
    STAR  and AMSERV are not aware of  any license or regulatory permit which is
material to the business of STAR or  AMSERV and which is likely to be  adversely
affected  by consummation of the  Merger or any approval  or other action by any
state, federal or foreign government or governmental agency (other than  routine
re-licensing procedures) that would be required prior to the Merger.
 
ACCOUNTING TREATMENT
 
    The  Merger is intended to qualify as  a pooling of interests for accounting
and financial reporting purposes. Consummation of the Merger is conditioned upon
STAR receiving  a letter  from Holtz  Rubenstein &  Co., LLP  (STAR's  auditors)
regarding  its  concurrence  with  STAR's  management's  conclusion  as  to  the
 
                                       48
<PAGE>
appropriateness  of  pooling  of  interests  accounting  for  the  Merger  under
Accounting  Principles Board Opinion  No. 16 if it  is consummated in accordance
with the  Merger Agreement.  See  "THE MERGER  AGREEMENT  -- Conditions  of  the
Merger."  Under the  pooling of  interests accounting  method, (i)  the recorded
historical cost basis of the assets and liabilities of both STAR and AMSERV will
be carried forward to the operations of STAR generally at their recorded amounts
and (ii) financial statements of STAR  issued subsequent to the consummation  of
the  Merger will be restated to include the combined financial position, results
of operations  and cash  flows for  STAR and  AMSERV for  all periods  presented
therein.  Certain events,  including certain  transactions with  respect to STAR
Common  Stock  or  AMSERV  Common  Stock  by  affiliates  of  STAR  or   AMSERV,
respectively,  may prevent the Merger from  qualifying as a pooling of interests
for accounting  and financial  reporting  purposes. See  "THE MERGER  --  Resale
Restrictions."
 
RESALE RESTRICTIONS
 
    All  shares  of STAR  Common Stock  received by  AMSERV shareholders  in the
Merger will be  freely transferable,  except that  shares of  STAR Common  Stock
received  by persons who are deemed to  be "affiliates" (as such term is defined
under the Securities Act) of STAR or AMSERV prior to the Merger may be resold by
them only  in  transactions permitted  by  the  resale provisions  of  Rule  145
promulgated  under the Securities Act  (or Rule 144 in  the case of such persons
who become affiliates  of STAR or  as otherwise permitted  under the  Securities
Act).  Persons who may  be deemed to  be affiliates of  STAR or AMSERV generally
include individuals or entities  that control, are controlled  by, or are  under
common  control with, such party and  may include certain officers and directors
of such  party as  well as  principal  shareholders of  such party.  The  Merger
Agreement  requires AMSERV to  use all reasonable  efforts to cause  each of its
affiliates to execute a  written agreement to the  effect that such person  will
not  offer to sell, transfer or otherwise dispose of any of his or her shares of
STAR Common Stock until such time as financial results covering at least 30 days
of combined operations of the surviving  entity and STAR have been published  by
STAR,   either  by  issuance  of  a  quarterly  earnings  report,  an  effective
registration statement  filed  with the  Commission,  a report  filed  with  the
Commission on Form 10-K, 10-Q, or 8-K or any other public filing or announcement
which includes such information.
 
                              THE MERGER AGREEMENT
 
    THE  DETAILED TERMS AND CONDITIONS TO THE MERGER ARE CONTAINED IN THE MERGER
AGREEMENT, WHICH  IS  INCLUDED  IN  FULL  AS APPENDIX  A  TO  THIS  JOINT  PROXY
STATEMENT/PROSPECTUS AND INCORPORATED HEREIN BY REFERENCE. THE FOLLOWING SUMMARY
OF  THE MATERIAL TERMS OF THE MERGER  AGREEMENT IS QUALIFIED IN ITS ENTIRETY BY,
AND MADE  SUBJECT TO,  THE MORE  COMPLETE INFORMATION  SET FORTH  IN THE  MERGER
AGREEMENT.
 
THE MERGER
 
    Subject  to  the  terms  and  conditions of  the  Merger  Agreement,  at the
Effective Time, Merger Sub will be merged with and into AMSERV and thereupon the
separate  existence  of  Merger  Sub  will  cease  and  AMSERV  will  become   a
wholly-owned  subsidiary of STAR. The Merger  will have effects specified in the
DGCL.
 
EFFECTIVE TIME OF THE MERGER
 
    Upon the  satisfaction  or waiver  of  all  conditions to  the  Merger,  and
provided  that the Merger  Agreement has not been  terminated or abandoned, STAR
and AMSERV will cause the Certificate of  Merger to be filed with the  Secretary
of  State of the  State of Delaware.  The Merger will  become effective upon the
filing of the Certificate  of Merger or  at such later time  as STAR and  AMSERV
have agreed upon and designated in such filing as the Effective Time.
 
                                       49
<PAGE>
CONVERSION OF SECURITIES
 
    Pursuant  to the Merger Agreement, as of the Effective Time, each issued and
outstanding share of  AMSERV Common Stock,  other than shares  of AMSERV  Common
Stock  owned of record by STAR and shares  of AMSERV Common Stock that are owned
by AMSERV as treasury stock, will be converted into the right to receive  0.4090
shares  of STAR Common Stock. STAR Common Stock is quoted on the Nasdaq National
Market under the symbol "SMCS." All  shares of AMSERV Common Stock converted  in
the Merger will no longer be outstanding and will automatically be cancelled and
retired  and will cease to exist, and  each holder of a certificate representing
any such shares will cease to have  any rights with respect thereto, except  the
right  to receive, without interest, shares  of STAR Common Stock upon surrender
of such certificate and cash in lieu of fractional shares of STAR Common Stock.
 
    The issued and  outstanding shares  of common stock  of Merger  Sub will  be
converted into shares of AMSERV, all of which will be owned by STAR.
 
TREATMENT OF STOCK OPTIONS
 
    Pursuant  to the AMSERV Stock Option Plan  and under the terms of the Merger
Agreement, all outstanding AMSERV Options, whether or not vested or exercisable,
will become exercisable  immediately prior  to the Effective  Time, will  remain
outstanding  and will  be assumed  by STAR.  Thereafter, the  material terms and
conditions pursuant to which such options  will be exercisable will be the  same
as  under the assumed  AMSERV Option and the  applicable option agreement issued
thereunder, except that (i) the number of shares of STAR Common Stock subject to
each AMSERV Option  will be determined  by multiplying the  number of shares  of
AMSERV  Common  Stock subject  to  the AMSERV  Option  immediately prior  to the
Effective Time by the Exchange Ratio and  rounding down to the next whole  share
and  (ii) the per  share exercise price  will be determined  by dividing the per
share exercise price in effect immediately prior to the Effective Time under the
AMSERV Option by  the Exchange Ratio.  Approval of the  Merger Agreement by  the
shareholders  of STAR will constitute shareholder  approval of the assumption by
STAR of the AMSERV Stock Option Plan under which AMSERV Options were granted.
 
EXCHANGE OF CERTIFICATES
 
    As of the Effective Time, STAR will deposit with Continental Stock  Transfer
&  Trust Company, as exchange  agent for the AMSERV  Common Stock (the "Exchange
Agent"), for the benefit of  the holders of shares  of AMSERV Common Stock,  for
exchange  in accordance with the Merger Agreement, certificates representing the
shares of  STAR Common  Stock to  be issued  in exchange  for certificates  that
represented  shares of  AMSERV Common Stock  immediately prior  to the Effective
Time.
 
    As soon  as  practicable after  the  Effective  Time, STAR  will  cause  the
Exchange Agent to send a notice and transmittal form to each holder of record of
AMSERV  Common Stock immediately prior to the  Effective Time to be used by such
holders   in   forwarding   their   certificates   representing   such    shares
("Certificates")  and instructions  for use  in effecting  the surrender  of the
Certificates in exchange  for certificates  representing shares  of STAR  Common
Stock and cash in lieu of fractional shares.
 
AMSERV  SHAREHOLDERS  ARE  REQUESTED  NOT TO  SURRENDER  THEIR  CERTIFICATES FOR
EXCHANGE UNTIL THEY  RECEIVE A  NOTICE AND  TRANSMITTAL FORM  FROM THE  EXCHANGE
AGENT.
 
    No  fractional shares of STAR Common Stock  will be issued in the Merger and
any holder of shares of AMSERV Common Stock entitled under the Merger  Agreement
to receive a fractional share will be entitled to receive only a cash payment in
lieu  thereof,  which  payment will  be  in  an amount  equal  to  such holder's
proportionate interest in the net proceeds from the Exchange Agent's sale in the
open market of the aggregate fractional shares of STAR Common Stock issuable  in
the Merger.
 
    No  dividends or  other distributions declared  after the  Effective Time on
STAR Common Stock  will be paid  to the holder  of any shares  represented by  a
Certificate  until such Certificate is surrendered  for exchange. Subject to the
effect of applicable laws, following  surrender of any such Certificates,  there
will be
 
                                       50
<PAGE>
paid  to the holder of the Certificates representing whole shares of STAR Common
Stock issued in  exchange therefor, without  interest, (i) at  the time of  such
surrender,  the amount of any cash payable in lieu of a fractional share of STAR
and the amount of dividends or other distributions with a record date after  the
Effective Time therefor payable with respect to such whole shares of STAR Common
Stock,  and (ii)  at the  appropriate payment date,  the amount  of dividends or
other distributions with  a record date  after the Effective  Time but prior  to
surrender,  and a payment date subsequent  to surrender, payable with respect to
such whole shares of STAR Common Stock.
 
    After the close of business  on the day prior to  the date of the  Effective
Time,  there will be no  transfers on the transfer books  of AMSERV of shares of
AMSERV Common Stock which  were outstanding immediately  prior to the  Effective
Time.
 
    In  the event any Certificate is lost,  stolen or destroyed, upon the making
of an affidavit of that fact by the person claiming such Certificate to be lost,
stolen or destroyed and, if  required by STAR, the posting  by such person of  a
bond  in such amount, form and with such  surety as STAR may direct as indemnity
against any claim that may be made against it with respect to such  Certificate,
the  Exchange Agent will  issue in exchange  for such lost,  stolen or destroyed
Certificate the appropriate  amount of  STAR Common Stock  and cash  in lieu  of
fractional  shares (and unpaid  dividends and distributions)  in respect of such
Certificate.
 
TREATMENT OF AMSERV CLASS B PREFERRED
 
    The Merger Agreement provides that the AMSERV Class B Preferred shall not be
converted into any other security in connection with the Merger. Pursuant to the
terms of the Class B  Certificate, upon a change in  control of AMSERV (such  as
the  Merger) any holder of AMSERV Class B Preferred then outstanding may request
that AMSERV redeem all, but not less  than all, of the AMSERV Class B  Preferred
at  a redemption price of $2.625 per share in cash (the "Redemption Price"). The
Redemption Price with respect to the 130,071 shares of AMSERV Class B  Preferred
currently  outstanding totals $341,436 in  the aggregate. Following consummation
of the Merger, STAR will  become obligated to pay such  amount in the event  any
holder of AMSERV Class B Preferred exercises its redemption rights. STAR expects
that  the cash and  cash equivalents of  AMSERV will be  sufficient to meet this
obligation, when it arises.
 
    The Class B  Certificate also provides  that AMSERV may  at any time  redeem
all,  but  not  less than  all,  of the  outstanding  shares of  AMSERV  Class B
Preferred at the Redemption  Price. Pursuant to  the Merger Agreement,  however,
AMSERV has agreed that it will not redeem, retire or purchase such shares except
as  required by the Class B Certificate. It is the intention of the parties that
following the approval of the Merger by the respective shareholders of STAR  and
AMSERV,  but  prior to  the consummation  of  the Merger,  STAR will  waive this
restriction on the redemption  of the AMSERV Class  B Preferred and AMSERV  will
redeem all outstanding shares of AMSERV Class B Preferred.
 
REPRESENTATIONS AND WARRANTIES
 
    The   Merger  Agreement  contains   various  customary  representations  and
warranties relating to,  among other things,  each of STAR's  and AMSERV's:  (i)
organization  and  similar  corporate  matters;  (ii)  authorization, execution,
delivery, performance and enforceability of the Merger Agreement; (iii)  capital
structure  and  the  ownership  of  their  respective  subsidiaries;  (iv) other
material investment interests; (v) conflicts under certificates of incorporation
or  by-laws  or  comparable  organizational  documents,  required  consents  and
approvals,  and breaches  of material  contracts; (vi)  compliance with material
laws and regulations; (vii) documents filed by each of STAR and AMSERV with  the
Commission and the accuracy of information contained therein; (viii) litigation;
(ix) absence of certain material changes; (x) tax matters; (xi) employee benefit
plans;  (xii) labor matters; (xiii) absence of actions preventing the accounting
for the Merger as a pooling of interests; (xiv) the use of brokers in  arranging
the  Merger;  (xv) related  party transactions;  and (xvi)  undisclosed material
liabilities.
 
                                       51
<PAGE>
COVENANTS; CONDUCT OF BUSINESS PRIOR TO EFFECTIVE TIME
 
    AMSERV has agreed (and  has agreed to cause  its subsidiaries), among  other
things,  prior  to the  Effective  Time, unless  STAR  agrees in  writing  or as
otherwise required to  consummate the  transactions contemplated  by the  Merger
Agreement,  (i)  to  conduct its  operations  only according  to  their ordinary
course, consistent in all material respects with past practice, and (ii) to  use
all  reasonable efforts,  and to  cause its  subsidiaries to  use all reasonable
efforts,  to   preserve   substantially   intact   their   respective   business
organizations,  keep available the services of their present officers, employees
and consultants  and preserve  their present  relationships with  those  persons
having  significant business  relationships with  them. In  addition, AMSERV has
also agreed among other things, prior to the Effective Time, unless STAR  agrees
in  writing or as otherwise required to consummate the transactions contemplated
by the Merger Agreement, that AMSERV shall not: (i) amend its charter or bylaws;
(ii) issue, grant, sell or pledge or  agree or propose to issue, grant, sell  or
pledge  any shares of, or rights or securities of any kind to acquire any shares
of, the capital stock of  AMSERV except that AMSERV  may issue shares of  AMSERV
Common  Stock upon the exercise of stock  options outstanding on the date of the
Merger Agreement,  (iii) other  than  in the  ordinary  course of  business  and
consistent  with  past practice,  incur any  material indebtedness  for borrowed
money, (iv) waive, release, grant or transfer any rights of material value,  (v)
merge  or  consolidate  with  any  person or  adopt  a  plan  of  liquidation or
dissolution, (vi) acquire,  propose to  acquire or  enter into  an agreement  to
acquire  any assets, stock or other interests  of a third party, (vii) transfer,
lease, license, sell or dispose of a material portion of assets or any  material
assets,  (viii) permit any material revaluation of any asset (including, without
limitation, any writing down of the value  of inventory or writing off of  notes
or accounts receivable), (ix) change any accounting principles or methods except
insofar  as  may  be  required  by  changes  in  generally  accepted  accounting
principles or (x) mortgage or pledge any of its assets or properties or  subject
any  of its assets  or properties to any  material liens, charges, encumbrances,
imperfections of  title, security  interests,  options or  rights or  claims  of
others with respect thereto.
 
    AMSERV  has  agreed that  neither it  nor any  subsidiary will,  directly or
indirectly: (i) increase the cash compensation  payable or to become payable  by
it  to any of  its employees, officers, consultants  or directors; provided that
AMSERV  or  any  subsidiary  may  increase  the  cash  compensation  payable  to
non-officer  employees to  the extent  consistent with  past practice  and in no
event to  a rate  of total  annual compensation  for any  individual that  would
increase  such individual's rate of total  annual compensation by more than five
percent (5%) over such individual's current such rate; (ii) enter into, adopt or
amend any stock  option, stock  purchase, profit  sharing, pension,  retirement,
deferred   compensation,  restricted  stock  or  severance  plan,  agreement  or
arrangement for the benefit of employees, officers, directors or consultants  of
AMSERV or any subsidiary; (iii) enter into or amend any employment or consulting
agreement;  or  (iv) make  any loan  or advance  to, or  enter into  any written
contract, lease  or  commitment  with,  any  officer,  employee,  consultant  or
director of AMSERV or any subsidiary.
 
    In  addition, AMSERV has agreed that neither it nor any subsidiary will: (i)
directly  or  indirectly,  assume,   guarantee,  endorse  or  otherwise   become
responsible  for the obligations  of any other  individual, corporation or other
entity, or make any  loans or advances to  any individual, corporation or  other
entity  except  in the  ordinary  course of  business  and consistent  with past
practices; (ii) take any action which would interfere with the abilities of  the
parties  to account for the Merger as a pooling of interests; or (iii) authorize
or enter into any agreement to do any of the things described above.
 
NEGOTIATIONS WITH OTHERS
 
    The Merger Agreement provides that, prior to the Effective Time, AMSERV will
not, and will cause  each of its officers,  directors, employees, agents,  legal
and  financial advisors  and affiliates  not to,  directly or  indirectly, make,
solicit, encourage,  initiate  or  enter  into any  agreement  or  agreement  in
principle, or announce any intention to do any of the foregoing, with respect to
any  offer or proposal to acquire all or a substantial part of AMSERV's business
and properties or  a substantial amount  of AMSERV's equity  securities or  debt
securities  whether  by  purchase,  merger, purchase  of  assets,  tender offer,
exchange offer, business combination or otherwise (a "Third Party Transaction").
 AMSERV and its subsidiaries have
 
                                       52
<PAGE>
agreed that they will not and  will cause their respective officers,  directors,
legal  and  financial  advisors,  agents  and  affiliates  not  to,  directly or
indirectly, participate in any negotiations or discussions regarding, or furnish
any information with respect to, or otherwise cooperate in any way in connection
with, or  assist or  participate  in, facilitate  or  encourage, any  effort  or
attempt  to effect a  Third Party Transaction involving  any other person unless
AMSERV shall have received an unsolicited written offer to effect a Third  Party
Transaction  and the Board of Directors of  AMSERV determines in good faith upon
the advice  of outside  legal counsel  that, in  the exercise  of the  fiduciary
obligations  of the Board of Directors under applicable law, such information is
required to be provided to or  such discussions or negotiations are required  to
be undertaken with the person submitting such Third Party Transaction.
 
    Prior  to the Effective  Time, AMSERV will promptly  communicate to STAR the
terms of any Third  Party Transaction which  it may receive  and will keep  STAR
informed as to the status of any actions, including negotiations or discussions,
taken  pursuant to  the immediately preceding  sentence. As  soon as practicable
following the Effective Time, AMSERV will promptly request that each person  who
has executed a confidentiality agreement in connection with its consideration of
a  Third Party Transaction return all confidential information furnished to such
person by or on behalf of AMSERV.
 
MANAGEMENT AFTER THE MERGER
 
    After the Effective Time, AMSERV will be a wholly-owned subsidiary of  STAR.
AMSERV's  Board of Directors  will be filled by  individuals designated by STAR,
and STAR's Chief Executive Officer and President will replace Eugene J. Mora  as
Chief Executive Officer and President of AMSERV.
 
CONDITIONS OF THE MERGER
 
    The  respective obligations of STAR and  AMSERV to consummate the Merger are
subject to the fulfillment of certain conditions, certain of which may be waived
by the mutual  consent of AMSERV  and STAR, including,  without limitation,  the
following:  (i) the Merger  Agreement and the  transactions contemplated thereby
shall have been approved and adopted in the manner required by applicable law by
the holders of the issued  and outstanding shares of  capital stock of STAR  and
AMSERV  entitled to vote thereon; (ii) neither  STAR nor AMSERV shall be subject
to any order or injunction of a court of competent jurisdiction which  prohibits
the consummation of the transactions contemplated by the Merger Agreement; (iii)
the Registration Statement, of which this Joint Proxy Statement/Prospectus forms
a part, shall have become effective and no stop order with respect thereto shall
be  in effect; (iv) all necessary approvals under state securities laws relating
to the issuance or trading of the  STAR Common Stock to be issued in  connection
with  the Merger shall have been received; (v) STAR shall have received a letter
from Holtz Rubenstein  & Co.,  LLP, regarding  that firm's  conclusion that  the
Merger  qualifies for pooling  of interests accounting  under generally accepted
accounting practices;  (vi) the  shares of  STAR Common  Stock issuable  to  the
holders  of the AMSERV Common  Stock and the AMSERV  Options shall be authorized
for listing on the Nasdaq National Market; and (vii) AMSERV shall have  received
the  opinion of Latham &  Watkins, addressed to AMSERV,  that among other things
the Merger will be treated for  federal income tax purposes as a  reorganization
within  the meaning  of Section 368(a)  of the  Code, and that  STAR, AMSERV and
Merger Sub will each  be a party  to that reorganization  within the meaning  of
Section  368(b) of  the Code.  There is  currently no  intention on  the part of
either AMSERV or STAR to  waive any of the  conditions set out above,  including
without  limitation (v) and (vii). In the event that the conditions set forth in
(v) or (vii) above were to be waived, STAR would file a post-effective amendment
to the Registration  Statement and both  STAR and AMSERV  would resolicit  their
respective  shareholders  regarding their  approval and  adoption of  the Merger
Agreement.
 
    The obligations of each  of STAR and  AMSERV to effect  the Merger also  are
subject  to the fulfillment or waiver by  the other party prior to the Effective
Time of certain conditions including, without limitation, the following: (i) the
other party  shall  have  performed  in all  material  respects  its  agreements
contained  in  the Merger  Agreement  required to  be  performed by  it  and the
representations and  warranties  of the  other  party contained  in  the  Merger
Agreement  shall be true  and correct (other  than representations made  as of a
particular time); and  (ii) from the  date of the  Merger Agreement through  the
Effective Time, there will not
 
                                       53
<PAGE>
have  occurred any change  in the financial  condition, business, properties, or
results of operations or prospects of the other party that would have a material
adverse effect on such other party and its subsidiaries, taken as a whole.
 
TERMINATION
 
    The Merger Agreement may be terminated and the Merger abandoned at any  time
prior  to the Effective  Time, before or  after approval by  the shareholders of
STAR and AMSERV:
 
        (a) by the mutual consent of STAR and AMSERV;
 
        (b) by either AMSERV or STAR, if (i) the Merger has not been consummated
    by September 15, 1996; (ii) the approval of STAR's shareholders or  AMSERV's
    shareholders has not been obtained at a meeting duly convened therefor or at
    any  adjournment thereof, or (iii) a United States federal or state court of
    competent jurisdiction  or  United  States federal  or  state  governmental,
    regulatory  or  administrative agency  or  commission has  issued  an order,
    decree  or  ruling  or  taken  any  other  action  permanently  restraining,
    enjoining  or  otherwise prohibiting  the  transactions contemplated  by the
    Merger Agreement and such order, decree,  ruling or other action has  become
    final and non-appealable;
 
        (c)  by AMSERV, at any time prior to the Effective Time, before or after
    the adoption and approval  by the shareholders of  AMSERV, by action of  the
    AMSERV  Board  of  Directors, if  (i)  a  Third Party  Transaction  has been
    proposed and the AMSERV  Board determines in good  faith upon the advice  of
    outside  legal  counsel  that termination  is  required to  comply  with its
    fiduciary duties; (ii) there has been a breach by STAR or Merger Sub of  any
    representation  or warranty  contained in  the Merger  Agreement which would
    have a material adverse effect on AMSERV; or (iii) there has been a material
    breach of  any  of the  covenants  or agreements  set  forth in  the  Merger
    Agreement  on the part of STAR, which  breach is not curable or, if curable,
    is not cured within 30 days after written notice of such breach is given  by
    AMSERV to STAR; or
 
        (d) by STAR at any time prior to the Effective Time, before or after the
    adoption  and approval by  the shareholders of  STAR, by action  of the STAR
    Board of  Directors,  if (i)  there  has been  a  breach by  AMSERV  of  any
    representation  or warranty  contained in  the Merger  Agreement which would
    have a  material adverse  effect on  STAR; (ii)  there has  been a  material
    breach  of  any of  the  covenants or  agreements  set forth  in  the Merger
    Agreement on the part of AMSERV, which breach is not curable or, if curable,
    is not cured within 30 days after written notice of such breach is given  by
    STAR  to AMSERV;  or (iii)  the AMSERV  Board of  Directors has  modified or
    withdrawn its  determination that  the Merger  is fair  to and  in the  best
    interests  of AMSERV's shareholders or its approval or recommendation of the
    Merger Agreement or the Merger in any event due to the existence of a  Third
    Party Transaction.
 
EFFECT OF TERMINATION AND ABANDONMENT
 
    If  (i) AMSERV  terminates the  Merger Agreement in  favor of  a Third Party
Transaction or (ii) STAR terminates the Merger Agreement pursuant to the  events
discussed  in  clause  (iii)  of  paragraph (d)  above,  then,  within  ten days
following such  termination,  AMSERV will  pay  STAR  a fee  of  $250,000,  plus
reasonable out-of-pocket fees and expenses up to $200,000, which amount shall be
payable by wire transfer of same day funds.
 
AMENDMENT AND WAIVER
 
    Subject  to applicable law, (a)  the Merger Agreement may  be amended at any
time by action taken by the respective  Boards of Directors of the parties,  and
(b)  the parties, by action taken by  their respective Boards of Directors, may,
at any time prior to the Effective Time, extend the time for performance of  any
obligation or action required of the other party under the Merger Agreement, may
waive  inaccuracies  in  representations  and  warranties  made  in  the  Merger
Agreement and any document delivered  pursuant thereto and may waive  compliance
with  any agreements or conditions for their respective benefit contained in the
Merger Agreement. Any such amendment or waiver  will only be valid if set  forth
in  a written instrument signed  on behalf of each of  the parties to the Merger
Agreement. See "THE MERGER AGREEMENT -- Conditions of the Merger."
 
                                       54
<PAGE>
                       COMPARISON OF RIGHTS OF HOLDERS OF
                   AMSERV COMMON STOCK AND STAR COMMON STOCK
 
GENERAL
 
    As  a  result of  the Merger,  holders  of AMSERV  Common Stock  will become
shareholders of STAR,  and the rights  of such former  AMSERV shareholders  will
thereafter  be  governed by  the STAR  Certificate  of Incorporation  (the "STAR
Charter") and the STAR by-laws  (the "STAR By-laws") and  the laws of New  York.
The  rights of the holders of AMSERV  Common Stock are presently governed by the
AMSERV Certificate  of  Incorporation  (the "AMSERV  Charter")  and  the  AMSERV
by-laws  (the "AMSERV By-laws") and the laws of Delaware. The following summary,
which does not purport to be a complete statement of the differences between the
rights of  the  shareholders of  STAR  and the  shareholders  of AMSERV,  is  an
explanation of the material differences between the AMSERV Common Stock and STAR
Common  Stock resulting  from the differences  between the STAR  Charter and the
AMSERV Charter,  the  STAR By-laws  and  the AMSERV  By-laws  and New  York  and
Delaware law. This summary is qualified in its entirety by reference to the full
text of each of such documents and the applicable state statutes.
 
VOTING RIGHTS
 
GENERALLY
 
    Each  holder of AMSERV Common  Stock is entitled to  one vote for each share
held by such holder on all matters upon which holders of AMSERV Common Stock are
entitled or afforded the opportunity to vote. Except where the DGCL prescribes a
higher vote, to be effective, corporate action taken by vote of shareholders  of
a  Delaware  corporation must  be authorized  by the  vote of  the holders  of a
majority of the  outstanding shares  of all classes  of stock  entitled to  vote
thereon present in person or by proxy at the meeting.
 
    Each  shareholder of record of STAR Common Stock is entitled to one vote for
every share of  such stock, subject  only to  the voting rights  granted to  the
holders  of STAR Cumulative  Preferred Stock upon  default in dividends thereon.
Except as otherwise provided  by law, whenever any  corporate action other  than
the election of directors is to be taken by vote of the shareholders of STAR, it
must  be authorized by a majority of the votes cast at a meeting of shareholders
by the holders of shares entitled to vote thereon.
 
ELECTION OF DIRECTORS
 
    The AMSERV Charter provides that the  number of directors shall be fixed  in
the  AMSERV By-laws, which provides that the number cannot be less than four nor
more than nine. The number  of directors of AMSERV  is currently fixed at  five.
Directors are elected at a meeting of shareholders by the vote of the holders of
a  majority of the outstanding  shares of all classes  of stock entitled to vote
thereon present in person or by proxy at the meeting.
 
    The STAR Charter mandates that STAR have not less than three directors.
 
APPROVAL OF CERTAIN TRANSACTIONS
 
    The DGCL  generally requires  the  affirmative vote  of  a majority  of  the
outstanding  stock entitled to  vote thereon for  the approval of  any merger or
consolidation.  Unless  required  by   the  certificate  of  incorporation,   no
shareholder  approval is required for  certain mergers in which  (i) there is no
amendment to the certificate of incorporation of a corporation, (ii) each  share
of stock of such corporation is to be an identical outstanding or treasury share
of  the surviving corporation after  the effective date of  the merger and (iii)
either no shares  of common stock  of the surviving  corporation and no  shares,
securities  or  obligations  convertible  into  such  stock  will  be  issued or
delivered in  connection with  the merger  or the  unissued shares  or  treasury
shares  of  stock of  the surviving  corporation  to be  issued or  delivered in
connection with the merger plus those initially issuable upon conversion of  any
other  shares, securities or obligations to be issued or delivered in connection
with the  merger do  not  exceed 20%  of  the shares  of  common stock  of  such
corporation outstanding immediately prior to the effective date of the merger.
 
                                       55
<PAGE>
    The New York Business Corporation Law (the "NYBCL") requires the affirmative
vote  of two-thirds of all outstanding shares entitled to vote thereon to effect
a merger, a consolidation, a share exchange or the sale, lease or disposition of
all  or  substantially  all  of  a  corporation's  assets.  Notwithstanding  any
provision  in the certificate of incorporation, the holders of shares of a class
or series are entitled to vote as  a class if the proposed transaction  contains
any  provision  which,  if  contained  in an  amendment  to  the  certificate of
incorporation, would entitle  the holder of  shares of such  class or series  to
vote  as a class thereon; in such a case, in addition to the required two-thirds
vote of all outstanding shares, the merger  must be authorized by a vote of  the
holders  of a majority of  all outstanding shares of  each such class or series.
The NYBCL does not contain a provision  for mergers (other than those between  a
corporation  and  its 90%  or  more owned  subsidiary)  without the  approval of
shareholders similar to that in the DGCL.
 
    Because the Merger is structured as  a merger of two Delaware  corporations,
the  two-thirds affirmative vote requirement and  the other procedures under New
York law described in the preceding paragraph do not apply to STAR in connection
with the Merger.
 
    Accordingly, as opposed  to the  DGCL, the NYBCL  would make  approval of  a
merger,  a consolidation, a share exchange or  the sale, lease or disposition of
all or substantially all of a corporation's assets more difficult to obtain.
 
AMENDMENTS TO CERTIFICATE OF INCORPORATION
 
    Under both  Delaware  and New  York  law,  amendments to  a  certificate  of
incorporation  may be authorized by the vote of the holders of a majority of all
outstanding shares  entitled  to vote  thereon.  Both states  also  provide  for
approval  by  vote of  the  holders of  a majority  of  outstanding shares  of a
particular class of stock in certain circumstances.
 
SPECIAL MEETINGS
 
    Under both Delaware and New York  law, special meetings of shareholders  may
be  called  by  the board  of  directors and  by  such other  person  or persons
authorized to  do  so  by  the corporation's  certificate  of  incorporation  or
by-laws.  In addition, Delaware law  provides that, if an  annual meeting is not
held within 30 days of  the date designated for such  a meeting, or is not  held
for  a period of 13 months after the  last annual meeting, the Delaware Court of
Chancery may summarily order a  meeting to be held  upon the application of  any
shareholder  or director. Under New  York law, if there is  a failure to elect a
sufficient number of directors to conduct the business of the corporation for  a
period  of one month after the date fixed by or under the by-laws for the annual
meeting of shareholders  or for  a period  of 13  months after  the last  annual
meeting,  the board of directors will call a special meeting for the election of
directors. If the board fails to do so within 14 days of the expiration of  such
period  or if  it is  so called but  such directors  are not  elected within two
months, holders  of  10% of  the  shares entitled  to  vote in  an  election  of
directors may demand the call of a special meeting for an election of directors.
 
    Therefore,  in comparison to Delaware law, New  York law will make calling a
special meeting a more difficult process for shareholders because of the 10%  of
shareholders  requirement  and other  procedures  under New  York  law described
above.
 
SHAREHOLDERS' ACTION WITHOUT A MEETING
 
    The DGCL provides that shareholders may take any action without a meeting by
written consent signed by the holders of outstanding stock having not less  than
the  minimum number of votes  that would be necessary  to authorize or take such
action at a meeting at  which all shares entitled  to vote thereon were  present
and  voted, unless otherwise  provided in the  certificate of incorporation. The
AMSERV Charter  contains no  provision  limiting the  right  to act  by  written
consent.  Prompt  notice of  the taking  of  any action  by less  than unanimous
consent must be given to  shareholders who did not  consent to such action.  The
NYBCL, however, provides that shareholders may take any action without a meeting
by written consent only if such
 
                                       56
<PAGE>
consent  is signed  by the  holders of all  outstanding shares  entitled to vote
thereon, unless otherwise provided in the certificate of incorporation. The STAR
Charter contains no provision altering the provisions of the statute.
 
    Therefore, shareholders  will find  it  more difficult  to take  any  action
without  a meeting under  the more restrictive NYBCL  requirement that a written
consent be signed by the holders of all of the shares entitled to vote.
 
PREEMPTIVE RIGHTS
 
    The DGCL allows for, but does not require, the grant of preemptive rights in
a company's certificate  of incorporation.  Neither the AMSERV  Charter nor  the
AMSERV  By-laws provide preemptive  rights to the holders  of capital stock. The
NYBCL provides, subject to certain exceptions, preemptive rights to shareholders
upon an issuance of  securities which would  adversely affect certain  specified
interests  of such shareholders, provided  that the certificate of incorporation
may provide otherwise. The STAR Charter states that no holders of shares of STAR
of any class or series, now  or hereafter authorized, shall have any  preemptive
rights.
 
    Therefore,  shareholders are not entitled to receive preemptive rights under
either Delaware or New York law.
 
DIVIDENDS
 
    Subject to any restrictions in a corporation's certificate of  incorporation
(which  the AMSERV Charter  does not include), the  DGCL generally provides that
the directors of  a corporation  may declare and  pay dividends  out of  surplus
(defined  as the excess, if any, of the  net assets over capital (defined as the
aggregate par value of the outstanding stock, if par value stock, plus or  minus
any  amount added or subtracted by resolution of the board, but in no event less
than the aggregate par value))  or, when no surplus  exists, out of net  profits
for  the fiscal  year in  which the  dividend is  declared and/or  the preceding
fiscal year. Dividends may not be paid out of net profits if the capital of  the
corporation  is less  than the  aggregate amount  of capital  represented by the
issued and  outstanding  stock of  all  classes  having a  preference  upon  the
distribution of assets.
 
    Under  the  NYBCL,  a  corporation  may declare  and  pay  dividends  on its
outstanding shares except when the corporation is insolvent or would thereby  be
made  insolvent,  or  when the  declaration,  payment or  distribution  would be
contrary to any restrictions contained  in the certificate of incorporation.  In
general,  dividends  may be  declared  or paid  out  of surplus  only.  When any
dividend is paid or any  other distribution is made, in  whole or in part,  from
sources  other than earned surplus,  it must be accompanied  by a written notice
disclosing the amounts  by which  such dividend or  distribution affects  stated
capital,  capital surplus and  earned surplus, or,  if such amounts  are not yet
determinable, disclosing  the  approximate effect  of  such dividend  on  stated
capital,  capital surplus and  earned surplus and stating  that such amounts are
not yet determinable.
 
    Accordingly, although  both Delaware  and  New York  law  will allow  for  a
dividend  to be declared, the NYBCL  has heightened disclosure requirements with
regards to a dividend paid out from sources other than surplus.
 
STOCK REPURCHASES
 
    The DGCL permits a  corporation to repurchase or  redeem its shares,  except
that a corporation may not do so when the capital of the corporation is impaired
or when such purchase or redemption would cause any impairment of the capital of
the  corporation. A purchase  or redemption out  of capital of  shares which are
entitled upon any distribution of the corporation's assets, whether by  dividend
or  liquidation, to a preference  over another class or  series of its stock, is
permitted if such shares will be retired upon their acquisition and the  capital
of the corporation reduced in accordance with Delaware law.
 
                                       57
<PAGE>
    Under the NYBCL, a corporation may, subject to restriction imposed by law or
its certificate of incorporation, repurchase or redeem its shares out of surplus
except  when the corporation is insolvent or  would thereby be made insolvent. A
corporation may repurchase its shares out of stated capital (with the  foregoing
exception)  if the purchase is made for the purpose of (i) eliminating fractions
of shares, (ii) collecting  or compromising indebtedness  to the corporation  or
(iii)  paying shareholders the fair value of their shares in connection with the
exercise of statutory appraisal rights.
 
    Accordingly, although both the DGCL and  the NYBCL will allow a  corporation
to  repurchase  or  redeem  its  shares  from  surplus,  New  York  law  is more
restrictive  regarding  the  use  of  stated  capital  for  such  purchases   or
redemptions in that the corporation must comply with the above stated purposes.
 
ISSUANCE OF RIGHTS OR OPTIONS TO PURCHASE SHARES TO DIRECTORS, OFFICERS AND
EMPLOYEES
 
    The DGCL permits any corporation, either in its certificate of incorporation
or  by  resolution  of the  board  of  directors, to  create  rights  or options
entitling the holders thereof to purchase from the corporation any shares of its
capital stock of any  class or classes.  In the absence of  actual fraud in  the
transaction,  the  judgment of  the directors  as to  the consideration  for the
issuance of  such  rights  or  options and  the  sufficiency  thereof  shall  be
conclusive.  The  NYBCL requires  that the  issuance  to officers,  directors or
employees of rights or options to purchase shares be authorized by a majority of
all outstanding shares entitled to vote thereon, or authorized by and consistent
with a plan adopted by such vote  of shareholders. In the absence of  preemptive
rights,  such authorization  is not  required in  New York  for the  issuance of
rights or  options in  substitution for  or  upon the  assumption of  rights  or
options  of  a corporation  with  which the  issuing  corporation is  merging or
consolidating.
 
    Accordingly, under the  NYBCL it  is more  difficult to  issue to  officers,
directors  or  employees rights  or  options to  purchase  shares than  it would
otherwise be under the DGCL.
 
LOANS TO DIRECTORS
 
    The DGCL  permits  any  corporation  to  lend  money  to,  or  guarantee  an
obligation  of,  or  otherwise  assist  any officer  or  other  employee  of the
corporation or of  its subsidiary, including  any officer or  employee who is  a
director  of the corporation or its subsidiary, whenever, in the judgment of the
directors, such  loan, guaranty  or  assistance may  reasonably be  expected  to
benefit the corporation. Under New York law, any loan made by the corporation to
any  director must be authorized by a  vote of the shareholders. For purposes of
this authorization, the shares  held by the director  who would be the  borrower
are not entitled to vote.
 
    Therefore,  under New York law, loans to directors will be more difficult to
obtain than under  Delaware law  because New  York requires  a shareholder  vote
whereas Delaware relies solely on the directors' judgment.
 
CLASSIFICATION OF THE BOARD OF DIRECTORS
 
    Both  the DGCL and the NYBCL provide that a corporation's board of directors
may be divided into classes with staggered terms of offices. Neither the  AMSERV
Charter  or the AMSERV By-laws nor the  STAR Charter or the STAR By-laws provide
for a classified board.
 
DUTIES OF DIRECTORS
 
    The  NYBCL  specifically   permits  a   board  of   directors  to   consider
constituencies  other than the  holders of a corporation's  capital stock and to
consider both the long-term and short-term interests of the corporation and such
constituencies when taking any action, including action taken in connection with
a change  or potential  change in  the  control of  the corporation.  The  NYBCL
permits directors to consider the effect that a corporation's action may have in
the  short-term  and  the  long-term  upon  (i)  potential  growth, development,
productivity and profitability of the corporation; (ii) current employees; (iii)
retired employees  and  other beneficiaries  receiving  or entitled  to  receive
retirement,   welfare  or  similar  benefits  from  the  corporation;  (iv)  the
corporation's customers and creditors; and (v) the ability of the corporation to
provide continuously goods,  services, employment  opportunities and  employment
benefits  and  otherwise  to contribute  to  the  communities in  which  it does
business. The  DGCL  contains  no  similar  provision;  however,  Delaware  case
 
                                       58
<PAGE>
law  has  established that,  in circumstances  involving  a potential  change of
control, directors may consider, among various other proper factors, the  impact
of  both  the bid  and the  potential acquisition  on constituencies  other than
shareholders.
 
    Accordingly, although only the NYBCL allows a board of directors to consider
constituencies other  than the  holders of  a corporation's  capital stock  when
taking any action, both Delaware and New York law allow such considerations when
the action involves a potential change of control of the corporation.
 
INTERESTED DIRECTOR TRANSACTIONS
 
    Under  the DGCL, no contract or transaction between a corporation and one or
more of  its directors  or officers,  or  between a  corporation and  any  other
corporation, partnership, association or other organization in which one or more
of  its directors  or officers  are directors or  officers, or  have a financial
interest, is  void or  voidable solely  for that  reason or  solely because  the
director or officer is present at or participates in the meeting of the board or
committee which authorized the contract or transaction, or solely because his or
their  votes are counted for such purpose,  provided that (i) the material facts
concerning the individual's interest and  the transaction are disclosed and  the
transaction  is approved  by a  majority of  the disinterested  directors of the
board or a committee  of the board,  or (ii) the  material facts concerning  the
individual's  interest and the transaction are  disclosed and the transaction is
approved in good  faith by vote  of the  shareholders or (iii)  the contract  or
transaction is fair to the corporation as of the time it is authorized, approved
or ratified by the board of directors, a committee thereof or the shareholders.
 
    The NYBCL provides that no transaction between a corporation and one or more
of  its  directors or  an  entity in  which  one or  more  of its  directors are
directors or officers or have a substantial financial interest shall be void  or
voidable  solely for that reason. In addition, no such transaction shall be void
or voidable solely because the director is present at or votes at the meeting of
the board of directors or committee  which authorized the transaction. In  order
to avoid such a transaction being void or voidable, it must, after disclosure of
material  facts  (unless  such  facts  were  known),  (i)  be  approved  by  the
disinterested directors  or a  committee of  disinterested directors  by a  vote
sufficient for such purpose without counting the vote of any interested director
(or, if the vote of disinterested directors is insufficient to constitute an act
of  the board  under New York  law, by  the unanimous vote  of the disinterested
directors) or (ii) be approved by a vote of the shareholders. Alternatively, the
transaction will not be void or voidable if it is shown to have been fair to the
corporation at the time it was approved  by the board of directors, a  committee
thereof or the shareholders.
 
    Accordingly,  although the DGCL may differ slightly from the NYBCL, Delaware
and New York law contain substantially similar treatments of interested director
transactions.
 
LIMITATIONS ON DIRECTORS' LIABILITY
 
    The DGCL permits a corporation to include a provision in its certificate  of
incorporation  eliminating or limiting  the personal liability  of a director to
the corporation or  its shareholders for  damages for breach  of the  director's
fiduciary duty, subject to certain limitations. The AMSERV Charter includes such
a  provision limiting the liability of directors, as set forth below, subject to
limitations substantially identical to those contained in the DGCL.
 
    The AMSERV Charter provides that a director will not be personally liable to
the corporation or its shareholders for monetary damages for breach of fiduciary
duty as a director, except  for liability (i) for  any breach of the  director's
duty  of  loyalty to  the  corporation or  its  shareholders, (ii)  for  acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, (iii) under Section  174 of the DGCL, which concerns  unlawful
payments of dividends, stock purchases or redemption or (iv) for any transaction
from which the director derived an improper personal benefit.
 
    While  these provisions provide directors with protection from liability for
monetary damages for breaches of their duty of care, they do not eliminate  such
duty.  Accordingly, these provisions will have  no effect on the availability of
equitable remedies  such as  an  injunction or  rescission based  on  directors'
breach
 
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<PAGE>
of  the duty of care. The provisions described  above apply to an officer of the
corporation only if he or she is a director of the corporation and is acting  in
his or her capacity as director, and do not apply to officers of the corporation
who are not directors.
 
    The  NYBCL permits a corporation to limit or eliminate a director's personal
liability to the corporation or the holders  of its capital stock for breach  of
duty.  This  limitation is  generally  unavailable for  acts  or omissions  by a
director which were (i) in bad faith, (ii) involved intentional misconduct or  a
knowing violation of law or (iii) involved a financial profit or other advantage
to  which  such director  was  not legally  entitled.  The NYBCL  also prohibits
limitations on director  liability for  acts or  omissions which  resulted in  a
violation  of  a  statute  prohibiting  certain  dividend  declarations, certain
payments to shareholders after dissolution and particular types of loans.
 
    The STAR  Charter  provides  for  limitations  on  directors'  liability  as
permitted by New York law.
 
INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    The  DGCL permits a corporation  to indemnify officers, directors, employees
and agents for  actions taken  in good  faith and  in a  manner they  reasonably
believed to be in, or not opposed to, the best interests of the corporation, and
with  respect to  any criminal  action, which  they had  no reasonable  cause to
believe was unlawful.  The DGCL  also provides  that a  corporation may  advance
expenses  of defense  (upon receipt  of a  written undertaking  to reimburse the
corporation if it is ultimately determined that such individual is not  entitled
to  indemnification)  and must  reimburse a  successful defendant  for expenses,
including attorneys'  fees,  actually  and reasonably  incurred,  and  permit  a
corporation  to purchase and maintain liability  insurance for its directors and
officers. The DGCL further provides that indemnification may not be made for any
claim, issue or  matter as to  which a person  has been adjudged  by a court  of
competent  jurisdiction, after exhaustion of all appeals therefrom, to be liable
to the corporation, except only to the extent a court determines that the person
is entitled to indemnity for such expenses that such court deems proper.
 
    In the absence of a specific provision in the AMSERV Charter to this effect,
the DGCL provides that a  corporation may indemnify any person  who was or is  a
party  or  is  threatened to  be  made a  party  to any  threatened,  pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action  by or in the  right of the corporation)  by
reason  of the  fact that  he or  she is  or was  a director  or officer  of the
corporation or  is  or was  serving  at the  request  of the  corporation  as  a
director,  officer, employee or agent of another corporation, partnership, joint
venture, trust  or  other  enterprise, against  expenses  (including  attorneys'
fees),  judgments, fines, and amounts paid in settlement actually and reasonably
incurred by him or her in connection with such action, suit or proceeding if  he
or  she acted in good faith and in a  manner he or she reasonably believed to be
in or not opposed to the best interests of the corporation, and, with respect to
any criminal action or proceeding, had  no reasonable cause to believe that  his
or  her conduct was unlawful, except that  no indemnification shall be made with
respect to any claim, issue  or matter as to which  such person shall have  been
adjudged  to be liable to the corporation unless and only to the extent that the
Court of Chancery or the  court in which such action  or suit was brought  shall
determine  upon application that,  despite the adjudication  of liability but in
view of all the circumstances of the case, such person is fairly and  reasonably
entitled  to indemnity  for such  expenses which the  Court of  Chancery or such
other court shall deem proper. Any  indemnification as explained above shall  be
made  by  the  corporation  only  as authorized  in  the  specific  case  upon a
determination that indemnification of the  director, officer, employee or  agent
is  proper in the circumstances because he or she has met the proper standard of
conduct as set forth above. Such determination  shall be made (i) by a  majority
vote  of the directors who  are not parties to  such action, suit or proceeding,
even though less than a quorum, (ii) if there are no such directors, or if  such
directors so direct, by independent legal counsel in a written opinion, or (iii)
by  the shareholders. The  indemnification and advancement  of expenses provided
by, or granted pursuant to,  the DGCL are not exclusive  of any other rights  to
which  those seeking indemnification or advancement  of expenses may be entitled
under any by-law, agreement, vote of shareholders or disinterested directors  or
otherwise, both as to action in his or her official capacity and as to action in
another capacity
 
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<PAGE>
while  holding  such office.  A  corporation shall  have  power to  purchase and
maintain insurance on behalf of  any person who is  or was a director,  officer,
employee or agent of the corporation, or is or was serving at the request of the
corporation as a director, officer, employee or agent of another entity.
 
    Under  the NYBCL, indemnification of directors  and officers may be provided
to whatever  extent  shall  be  authorized by  a  corporation's  certificate  of
incorporation  or a  by-law or  vote adopted  by the  shareholders. However, the
NYBCL does not permit indemnification with respect to any matter as to which the
director or officer has been adjudicated not to have acted in good faith in  the
reasonable belief that his action was in the best interest of the corporation.
 
    The  NYBCL  provides that  no  indemnification of  directors  in shareholder
derivative suits may be made in respect of (i) a threatened action, or a pending
action which is settled or  otherwise disposed of, or  (ii) any claim, issue  or
matter as to which the director or officer has been adjudged to be liable to the
corporation,  unless and only to  the extent that the  court in which the action
was brought or, if  no action is brought,  any court of competent  jurisdiction,
determines  upon application that, in view of the circumstances of the case, the
director or officer  is fairly  and reasonably  entitled to  indemnity for  such
portion  of the settlement  amount and expenses  as the court  deems proper. The
statutory provisions for  indemnification and  advancement of  expenses are  not
exclusive  of  any  other  rights  to  which  those  seeking  indemnification or
advancement  of  expenses  may  be  entitled  independently  of  the  applicable
statutory provision.
 
    The  STAR  By-laws currently  provide for  indemnification of  directors and
officers and  advancement of  indemnified expenses  to the  full extent  now  or
hereafter permitted by the NYBCL.
 
    Accordingly,  although the DGCL may differ slightly from the NYBCL, Delaware
and New  York  law  contain  substantially  similar  limitations  on  directors'
liability.
 
REMOVAL OF DIRECTORS
 
    As  permitted under the  DGCL, directors of  AMSERV may be  removed, with or
without cause, by  the vote  of the  holders of  a majority  of the  outstanding
shares  of  all  classes of  stock  entitled to  vote  present at  a  meeting of
shareholders. The  DGCL  imposes  additional  restrictions  on  the  removal  of
directors  for  corporations  with  a  classified  board,  cumulative  voting or
directors elected by the holders of a specific class or series of shares.
 
    The NYBCL provides that any or all of the directors of a corporation may  be
removed  for cause  by a vote  of the  shareholders and that  the certificate of
incorporation or by-laws may  provide for removal without  cause by vote of  the
shareholders.  STAR's By-laws provide that any  director may be removed, with or
without cause,  at  any  time  by  the  shareholders.  The  NYBCL  also  imposes
additional  restrictions  on  the  removal  of  directors  of  corporations with
cumulative voting or  directors elected by  the holders of  a specific class  or
series of shares.
 
    Accordingly,   the  removal  of  STAR  directors   would  be  treated  in  a
substantially similar manner under Delaware and New York law.
 
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<PAGE>
                       DESCRIPTION OF STAR CAPITAL STOCK
 
STAR COMMON STOCK
 
    STAR has one authorized  class of capital stock,  the STAR Common Stock,  of
which STAR is authorized to issue 10,000,000 shares.
 
    The  holders of STAR Common Stock are entitled to one vote for each share of
record held by them on all matters to  be voted on by shareholders. There is  no
right  to cumulative  voting; thus,  the holders  of 50%  or more  of the shares
outstanding can, if they choose  to do so, elect all  of the directors of  STAR.
The  holders of STAR Common Stock are entitled to receive dividends when, as and
if declared by the Board of  Directors out of funds legally available  therefor.
In  the event of liquidation, dissolution or  winding up of the affairs of STAR,
the holders of STAR  Common Stock are  entitled to share  ratably in all  assets
remaining  available  for distribution  to  them after  payment  of liabilities.
Holders of shares of STAR Common Stock have no preemptive or other  subscription
rights.
 
    As of July 17, 1996, there were 2,463,079 shares of STAR Common Stock issued
and outstanding which were held of record by 68 persons.
 
CERTAIN PROVISIONS OF THE CERTIFICATE OF INCORPORATION AND BY-LAWS
 
    (a)  Section 722 of the NYBCL permits, in general, a New York corporation to
indemnify any person made,  or threatened to  be made, a party  to an action  or
proceeding by reason of the fact that he or she was a director or officer of the
corporation,  or served  another entity  in any capacity  at the  request of the
corporation, against  any  judgment,  fines,  amounts  paid  in  settlement  and
reasonable expenses, including attorneys' fees actually and necessarily incurred
as  a result of such action or proceeding, or any appeal therein, if such person
acted in good faith, for a purpose he  or she reasonably believed to be in,  or,
in the case of service for another entity, not opposed to, the best interests of
the  corporation and,  in criminal  actions or  proceedings, in  addition had no
reasonable cause to believe that his or her conduct was unlawful. Section 723 of
the NYBCL permits the corporation  to pay in advance  of a final disposition  of
such  action or  proceeding the  expenses incurred  in defending  such action or
proceeding upon receipt of  an undertaking by  or on behalf  of the director  or
officer to repay such amount as, and to the extent, required by statute. Section
721  of  the  NYBCL provides  that  indemnification and  advancement  of expense
provisions contained in the NYBCL shall not be deemed exclusive of any rights to
which a director or officer  seeking indemnification or advancement of  expenses
may  be entitled, whether  contained in the certificate  of incorporation or the
by-laws  of  the  corporation  or,  when  authorized  by  such  certificate   of
incorporation or by-laws, (i) a resolution of shareholders, (ii) a resolution of
directors  or (iii)  an agreement,  provided no  indemnification may  be made on
behalf of any  director or  officer if a  judgment or  other final  adjudication
adverse  to  the director  or  officer establishes  that  his or  her  acts were
committed in bad faith or were the result of active or deliberate dishonesty and
were material  to  the  cause of  action  so  adjudicated, or  that  he  or  she
personally  gained in fact a financial profit  or other advantage to which he or
she was not legally entitled.
 
    (b) STAR's  Charter  contains  no  provision  regarding  indemnification  of
officers or directors.
 
    (c)  Article  X of  STAR's  By-Laws provides,  in  general, that  STAR shall
indemnify any  officer or  director (including  officers and  directors  serving
another corporation, partnership, joint venture, trust, employee benefit plan or
other  enterprise in any capacity  at STAR's request) made,  or threatened to be
made,  a  party   to  an   action  or  proceeding   (whether  civil,   criminal,
administrative  or  investigative) by  reason of  the  fact that  he or  she was
serving in any  of those capacities  against judgments, fines,  amounts paid  in
settlement  and  reasonable expenses  (including  attorneys' fees)  actually and
necessarily incurred in connection with  the defense of or  as a result of  such
action  or proceeding or in connection  with any appeal thereof. Indemnification
is not  available under  Article X  if a  judgment or  other final  adjudication
adverse  to such director or  officer establishes that (i)  his or her acts were
committed in bad faith or were the result of active
and deliberate dishonesty  and, in either  case, were material  to the cause  of
action  so adjudicated, or (ii) he or  she personally gained in fact a financial
profit or other advantage to which he or she was not legally entitled.
 
                                       62
<PAGE>
    (d) Pursuant  to By-law  Article X,  STAR has  entered into  indemnification
agreements  with  certain  of  its  directors  and  officers  providing  for the
indemnification of such directors and officers in derivative actions, as well as
with respect  to third  party  actions. The  NYBCL mandates  indemnification  in
derivative actions if the officer or director has been successful, on the merits
or  otherwise, in the defense of  the action. The indemnification agreements, as
well as Section 722  of the NYBCL, do  not permit indemnification in  derivative
actions  for (i) proceedings which are settled  or otherwise disposed of or (ii)
claims to which a person has been adjudged to be liable, unless court  approved.
However,  in  reliance on  Section 721  of  the NYBCL,  which provides  that the
statutory indemnification provisions are not exclusive of other rights which may
be provided to an officer or director seeking indemnification, By-law Article  X
also  extends  the  right  of indemnification  to  settlements  and unsuccessful
defenses of derivative actions  without the necessity  of a court  determination
provided  the person seeking indemnification meets the standard described in the
preceding paragraph.  STAR is  not aware  of any  judicial determination  as  to
whether  indemnification provisions such as  those related to derivative actions
in By-Law Article X (which,  by their terms, exceed  the scope of NYBCL  Section
722  but where the standard  of conduct set forth in  NYBCL Section 721 has been
met) are enforceable pursuant to such nonexclusivity provision.
 
    (e) By-law Article X, like the indemnification agreements, provides that the
expenses incurred in defending any action to which a director or officer may  be
entitled  to  indemnification  shall be  advanced  by  STAR prior  to  the final
disposition of the  action as long  as the indemnitee  undertakes to repay  such
advances  if required  by law.  STAR has been  advised that  the NYBCL currently
requires that an  officer or director  undertake to repay  such advances to  the
extent  they exceed the  amount to which  the officer or  director ultimately is
entitled. The period of time within which STAR is to advance expenses is fifteen
days  after  request;  the  time  period   within  which  STAR  is  to   provide
indemnification after request is thirty days.
 
    (f)  By-law Article  X, which by  its terms  is not the  exclusive basis for
granting rights  to  indemnification  or advancement  of  expenses,  establishes
procedures  for processing  indemnification requests, confirms  the authority of
STAR to maintain indemnification  insurance and prohibits  the repeal of  By-law
Article  X retroactively. By-law Article X also provides that it applies, to the
fullest extent permitted  by law, to  acts or omissions  occurring prior to  its
adoption.  By-law Article X  further stipulates that  the rights granted therein
are contractual in nature, which is  meant to prevent any retroactive denial  or
reduction of indemnification if By-law Article X is later amended.
 
    (g)  Under By-law  Article X,  the Board of  Directors is  permitted, to the
fullest extent  permitted by  law,  to establish  an  appropriate scope  of  and
procedure  for the indemnification of, and advancement of expenses to, employees
and other  persons to  whom  STAR is  permitted  to provide  indemnification  or
advancement of expenses.
 
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<PAGE>
                                BUSINESS OF STAR
 
GENERAL
 
    STAR  is in the  business of providing placement  services of registered and
licensed nurses and home health aides to patients for care at home ("Home Care")
and, to a lesser extent, temporary health care personnel recruiting to hospitals
and nursing homes ("Hospital Staffing"). In addition, STAR maintains  registries
of  registered nurses, licensed practical  nurses, nurses' aides, certified home
health aides  and  certified personal  care  workers from  which  personnel  are
recruited on a per diem basis to meet the requirements of STAR's clients.
 
    Prior  to its  acquisition by  present management  in 1987,  STAR's business
related primarily to providing private duty nurses to patients in hospitals  and
staffing  to hospitals. Under its current management, STAR expanded its Hospital
Staffing arrangements  to  nursing homes  and  additional hospitals  to  provide
licensed  nurses on a  per diem basis  for general staff.  In 1988, STAR further
extended its Hospital Staffing business to include providing licensed  practical
nurses  and nurses' aides. In  1989, STAR began providing  Home Care services in
New York City pursuant to a license  from the New York State Health  Department.
In  1990,  STAR expanded  its Home  Care services  to include  transportation of
patients from  hospital to  home  in ambulettes,  arrangements to  purchase  and
supply  equipment and pharmaceuticals as prescribed by the patient's physicians,
and home  infusion care.  In  1991, STAR  was licensed  by  the New  York  State
Department of Health to operate an office in Nassau County, New York.
 
    In  1992,  STAR  expanded  its  existing  Home  Care  business  through  the
acquisition of certain assets  from Unity Healthcare  Holding Company, Inc.  and
its  subsidiaries  ("Unity"), including  contract  rights to  provide  Home Care
services through various hospitals,  community agencies and other  institutional
health  care  providers. These  contract rights  complemented the  existing home
health care businesses of STAR  in areas such as New  Jersey and New York  where
STAR already operated. In addition, in these locations, STAR obtained from Unity
client referral lists to further expand existing operations.
 
    In  addition  to  expanding  STAR's existing  regional  business,  the Unity
acquisition added new operations to STAR in new locations. STAR acquired Unity's
Florida operations, which included  certification to receive reimbursement  from
Medicare  and Medicaid in Broward  and Dade Counties. Most  of such Medicare and
Medicaid reimbursed operations are  located in Dade  County. STAR also  acquired
the  assets representing Unity's operations in Florida that do not have Medicare
and Medicaid certification, but which operate under state license.
 
    In 1993, STAR further expanded its  existing Home Care business through  the
acquisition  of  certain  assets  of  DSI  Health  Care  Services,  Inc. ("DSI")
including  contract  rights  to  provide  Home  Care  services  through  various
hospitals,  community agencies  and other  institutional health  care providers.
These contract rights  complimented STAR's  existing Home Care  business in  the
Long Island, New York area.
 
    In  May 1995, STAR acquired certain  assets of Long Island Nursing Registry,
Inc. ("LINR") thereby further  expanding its Home  Care business. LINR  provided
nursing   and  other  skilled  health  care  services  with  both  Medicaid  and
non-Medicaid reimbursement  eligibility compatible  with the  business of  STAR.
LINR  maintains offices and does business under the STAR name in the Long Island
area and as Comprehensive Care America in the Syracuse area. The acquired assets
included all  of the  fixed assets,  certain of  the contract  and  intellectual
property  rights  and all  of  the records,  lists,  files and  books (including
certain customer and personnel lists) with respect to or in connection with  the
health  care business conducted by LINR.  The acquisition expanded STAR's market
area into Suffolk County,  augmented its presence in  Nassau County and gave  it
significant market share in central New York.
 
    During the fiscal years ended May 31, 1993, 1994 and 1995, 68%, 58% and 56%,
respectively,  of STAR's  revenues were  attributable to  Medicare, Medicaid and
other state and federal government payments. Historically, a greater portion  of
STAR's  revenues have been derived from Home  Care services and a lesser portion
of such revenues have  been derived from Hospital  Staffing. STAR believes  that
this is a result of
 
                                       64
<PAGE>
changing  social and  economic attitudes  toward the  de-institutionalization of
patients as well as STAR's changing customer base. This trend is demonstrated by
the following table, which  sets forth certain information  with respect to  the
Home  Care and Hospital Staffing  lines of business during  each of STAR's three
most recent fiscal years.
 
<TABLE>
<CAPTION>
                                                      FISCAL YEARS ENDED MAY 31,
                                           -------------------------------------------------
                                                1995             1994             1993
                                           ---------------  ---------------  ---------------
<S>                                        <C>              <C>              <C>
Net Revenue
  Home Care..............................  $  25,403,215    $  19,295,762    $  14,242,663
  Hospital Staffing......................      1,685,211        2,872,594        3,136,986
Percentage of Net Revenues
  Home Care..............................             94%              87%              82%
  Hospital Staffing......................              6%              13%              18%
</TABLE>
 
HOME CARE SERVICES
 
    A substantial portion of the revenues from STAR's Home Care business relates
to services provided to patients referred to STAR by physicians, county  medical
services,  community  organizations,  hospital social  service  workers, nurses,
insurance companies and HMOs. Other  patients are referred through such  sources
as the patient's family. The remaining revenues attributable to STAR's Home Care
business  are received as a result of subcontracting arrangements with certified
home health  agencies ("primary  contractors") that  are authorized  to  receive
reimbursement from Medicare and Medicaid in the States of New York and Florida.
 
    STAR  provides Home Care nurses  and paraprofessionals, including registered
nurses, licensed  practical  nurses,  certified  home  health  aides,  certified
personal  care workers and companions. These individuals are temporary employees
of STAR  who work  for STAR  as needed.  STAR's roster  of Home  Care  personnel
includes approximately 1,700 nurses and health care paraprofessionals.
 
    It  is STAR's policy that all of  its Home Care nurses and paraprofessionals
meet certain licensing, certification, and other requirements. Upon  registering
with   STAR   for   temporary   employment,   STAR's   Home   Care   nurses  and
paraprofessionals are required to attend  inservice classes given by STAR.  STAR
conducts  ongoing inservices for  its nurses and  paraprofessionals both to meet
New York  State  Department  of  Health  and  New  York  State  Licensing  Board
continuing  education requirements and to  fulfill STAR's own additional quality
assurance goals. STAR  is implementing  similar requirements  in Florida.  These
classes  and inservices, each of which  typically lasts three hours, are offered
bi-weekly. They are  taught by health  care professionals selected  by STAR  for
their  expertise in their fields,  including nurses, physical therapists, social
workers and occasionally physicians.
 
    When STAR  admits a  new patient  for service,  STAR's Director  of  Nursing
confers  with  the  patient's  physician  and  other  medical  and  health  care
professionals (collectively, the  patient's "health  care team")  to (1)  obtain
physician's  orders; (2) acquire a detailed description of the patient's medical
problem; (3)  determine  the  patient's specific  Home  Care  requirements  (the
"protocol"),  including  the  plan  of  treatment  and  pharmaceutical services,
products and  equipment which  will be  needed; and  (4) determine  the type  of
personnel,  the number  of hours  and shifts  required. The  Director of Nursing
and/or a  nursing supervisor  first visits  the patient  to conduct  a  personal
examination and assessment in order both to verify all information received from
the  referral source and to  select the appropriate Home  Care personnel to care
for the patient.
 
    In a typical Home  Care case, STAR's nurse  or paraprofessional assigned  to
the  case visits the patient on a prescribed schedule to administer the protocol
and  to  provide  other  general  care  to  the  patient.  Often  the  nurse  or
paraprofessional  spends the entire day  with the patient. All  of the Home Care
cases are supervised by a nursing  supervisor to ascertain whether any  problems
have  arisen in connection with  the services. Home Care  services provided on a
subcontracting basis for a primary contractor are supervised only by the primary
contractor. STAR's personnel are instructed to remain in continuous contact with
the patient's health care team.
 
                                       65
<PAGE>
    STAR has  contracted with  the  Departments of  Social Services  in  Nassau,
Suffolk,  and Onondaga  Counties in  New York to  provide and  be reimbursed for
custodial services under Medicaid. STAR is a direct provider for skilled nursing
services through Medicaid in New York State.
 
    Approximately 15% of  STAR's revenues from  Home Care services  are paid  by
insurance  carriers. Payments for  STAR's Home Care  services typically are made
(1) by assignment  of insurance benefits  from the patient,  (2) by the  primary
contracting  organization or (3) by the patient. Once a claim is submitted to an
insurer, the insurer  generally is  required to act  upon that  claim within  60
days.  STAR typically receives payments  from 60 to 180  days after its services
are rendered, although such time period is sometimes greater. Accordingly,  STAR
is  often required to carry accounts receivable over substantial periods of time
and to utilize a line  of credit to meet  its ongoing expenses. Medicaid  claims
are billed weekly and are usually paid in 60 to 90 days.
 
    STAR  was surveyed  by the Joint  Commission on  Accreditation of Healthcare
Organizations  ("JCAHO")  and,  in  February   1996,  was  found  to  meet   the
requirements  for  accreditation.  JCAHO,  which  is  the  accrediting  body for
hospitals, is  associated  with  the  provision  of  quality  services  and  its
accreditation  is  vital to  STAR's  contractual business.  STAR's accreditation
expires in  February  1999,  at which  time  STAR  must be  resurveyed  for  the
following three-year term.
 
HOSPITAL STAFFING
 
    STAR  provides  temporary  (or  "per diem")  nursing  placement  services to
hospitals, nursing  homes, clinics  and other  health-related institutions  that
make  use of supplemental staffing for  emergencies, vacations and peak periods.
These personnel are supervised  directly by the  institutions, with STAR  acting
solely  as an  employment agency matching  the requirements  of the institutions
with the names and skills of persons listed in its registries.
 
    The personnel placed  by STAR with  hospitals and other  health and  medical
institutions include registered nurses, licensed practical nurses, nurses' aides
and  other health care paraprofessionals. STAR's nurses and nurses' aides placed
in hospitals must meet the competency requirements determined by STAR and by the
facility. Temporary health care personnel are  recruited in the local market  in
which STAR offers its temporary personnel services.
 
    Some  of the hospitals in  New York City that  have utilized STAR's Hospital
Staffing services include Methodist Hospital, Maimonides Medical Center and  the
Hospital for Joint Diseases Orthopaedic Institute in New York.
 
COMPETITION
 
    The  temporary  health  care  personnel  market  is  highly  fragmented  and
significant competitors are  often localized in  particular geographic  markets.
STAR's  largest  competitors  include  the Olsten  Company  and  Staff Builders.
Management of STAR believes that, given the high current level of demand for the
types of services provided  by STAR, significant  additional competition can  be
expected  to  develop in  the  future. Some  of  the companies  with  which STAR
presently competes have substantially greater financial and other resources than
STAR. STAR  also competes  with many  other smaller  temporary medical  staffing
agencies.  STAR expects  that it will  compete with other  temporary health care
services providers  in  the  future  if and  when  they  enter  STAR's  existing
geographic markets, as well as in any new geographic market STAR may enter.
 
    STAR's success to date has depended, to a significant degree, on its ability
to  recruit qualified professionals.  These persons may  be registered with, and
may accept placements from  or through, competitors  of STAR. STAR  periodically
experiences  intense competition  from other  companies in  recruiting qualified
health care  personnel for  its  temporary health  care operations  because  the
United  States  health care  industry, at  times,  faces shortages  of qualified
personnel.  STAR   believes   it   is   able   to   compete   successfully   for
 
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<PAGE>
personnel  by aggressive recruitment  through newspaper advertisements, flexible
work schedules  and  competitive  compensation arrangements.  There  can  be  no
assurance,  however, that STAR  will be able  to continue to  attract and retain
qualified personnel. The inability  to either attract  or retain such  qualified
personnel would have a material adverse effect on STAR's business.
 
MARKETING
 
    STAR  currently markets its  temporary health care services  in the New York
metropolitan area, the  central New York  area and in  Broward and Dade  County,
Florida. STAR's services are marketed by a team of personnel headed by the Chief
Operating Officer of STAR. STAR promotes its services through print advertising,
direct  mail efforts focused on health  care institutions and field sales calls.
STAR makes periodic mailings to approximately 50 hospitals and 75 nursing  homes
in  the  New  York  City  metropolitan  area.  In  addition,  in  the  New  York
metropolitan area and in Florida, representatives of STAR periodically visit  or
telephone  medical  facilities  to  establish  or  maintain  relationships  with
individuals in those institutions who are responsible for staffing, discharge of
patients and personnel  recruitment. STAR's representatives  also attend  health
care functions and trade shows to further enhance STAR's marketing efforts. STAR
intends to continue these marketing programs and to increase its marketing staff
in the future as its business so requires.
 
    STAR  has recently acquired the necessary expertise, through its acquisition
of LINR, to provide Shared Aide Services ("Shared Aide"). Shared Aide, which  is
a  task-oriented, patient-specific care plan designed  to condense the amount of
hours caregivers must devote  to patients, has recently  been adopted as a  cost
cutting  mechanism by New  York State. The  New York State  Department of Social
Services, in consultation  with the  New York  State Department  of Health,  has
developed  agency specific  cost saving targets  for each  certified home health
agency. A portion of the cost savings are to be achieved through development and
implementation of Shared Aide.
 
    STAR believes it  is one of  the few providers  in New York  State with  the
expertise and experience required to offer Shared Aide. To date, Shared Aide has
not  constituted a material portion of STAR's business. However, STAR intends to
market this  service in  an  effort to  generate  increased revenues  from  this
developing area of home health care.
 
CUSTOMERS
 
    STAR  does not depend upon any single customer and does not believe that the
loss of any one or more of its customers would have a material adverse effect on
STAR. STAR continues  to submit  proposals to potential  contractors to  provide
Home Care services while maintaining and expanding its present contract base.
 
GOVERNMENT REGULATIONS AND LICENSING
 
    STAR's business is subject to substantial and frequently changing regulation
by  Federal, state and local authorities  which imposes a significant compliance
burden on STAR. STAR, among other  things, must comply with state licensing  and
certificate  of  need  requirements as  well  as Federal  and  state eligibility
standards for certification as a Medicare and Medicaid provider. The  imposition
of  more stringent  regulatory requirements or  the denial or  revocation of any
license or permit  necessary for STAR  to operate in  a particular market  could
have  a material adverse effect on STAR's  operations. In addition, STAR will be
required  to  comply  to  the  extent  applicable,  with  the  licensing  and/or
Certificate   of  Need  ("CON")  requirements   and  other  regulations  in  any
jurisdiction in which it may plan to provide services.
 
    Home health agency certification  is required by  the Health Care  Financing
Administration  ("HCFA") to receive reimbursement for services from Medicare. In
order to  participate as  a home  health agency  in the  Medicare program,  HCFA
requires,  among other  things, the  preparation of  annual budgets  and capital
expenditure plans. The health  regulatory agencies of the  states in which  STAR
operates require satisfaction
 
                                       67
<PAGE>
of certain standards with respect to personnel, services and supervision and the
establishment  of  a  professional advisory  group  that includes  at  least one
physician,  one  registered  nurse   and  other  representatives  from   related
disciplines or consumer groups.
 
    New York State requires the approval by the Public Health Council of the New
York  State Department  of Health  ("NYPHC") of  any change  in the "controlling
person" of an operator of a  licensed health care services agency (an  "LHCSA").
Control  of an entity is presumed to exist if any person owns, controls or holds
the power to vote 10%  or more of the voting  securities of such entity. To  the
extent  STAR may  seek to  acquire control of  an LHCSA,  STAR would  have to be
granted the approval of the NYPHC prior to exercising control over such LHCSA.
 
    Applicable state "anti-kickback" regulations, in general, provide that  STAR
may  not make  certain payments  in order to  receive referrals  of patients. In
addition, Federal "anti-kickback" regulations  provide similar restrictions  for
health  care providers to  the extent they  are certified to  participate in the
Medicare and  Medicaid programs.  STAR  does not  believe that  compliance  with
applicable  state and Federal "anti-kickback"  regulations has a material impact
on STAR's business and operations.
 
    STAR is  currently licensed  to  provide nursing  care and  durable  medical
equipment  in the five boroughs of  New York City, Nassau, Suffolk, Westchester,
Oswego, Onondaga, Cayuga, Madison, Jefferson  and Herkimer Counties in New  York
State and the State of Florida. It is also licensed as a temporary help services
firm to provide personnel on a per diem basis for hospital staffing.
 
    In  Broward and  Dade Counties in  Florida, STAR's home  health care license
allows STAR to participate in both the Medicare and Medicaid programs.
 
    STAR believes that  it has all  licenses necessary for  STAR to operate  its
business  as  currently  conducted  in  New  York  and  Florida.  The  denial or
revocation of  any  license  or  permit  necessary for  STAR  to  operate  in  a
particular  market would  have a material  adverse effect on  STAR's business in
that market and, depending upon the market, on STAR's business in general.
 
LIABILITY INSURANCE
 
    STAR's employees and independent contractors routinely make decisions  which
can  have significant medical consequences  to the patients in  their care. As a
result, STAR is exposed to substantial  liability in the event of negligence  or
wrongful  acts of its  personnel. STAR maintains  medical professional liability
insurance providing for coverage  in a maximum amount  of $1,000,000 per  claim,
subject  to a  limitation of $3,000,000  for all  claims in any  single year. In
addition,  STAR  requires  that  each   independent  contractor  it  refers   to
institutions  for employment supply  a certificate of  insurance evidencing that
such person  maintains medical  professional liability  insurance providing  for
coverage  of  no less  than $1,000,000  per  claim. There  can be  no assurance,
however, that  STAR  will be  able  to maintain  its  existing insurance  at  an
acceptable  cost  or  obtain additional  insurance  in the  future  as required.
Although, to date,  no claim has  been asserted  against STAR, there  can be  no
assurance  that  STAR's  insurance  will  be  sufficient  to  cover  liabilities
resulting from  claims  that  may be  brought  in  the future.  A  partially  or
completely   uninsured  claim,  if  successfully  asserted  and  of  significant
magnitude, could  have a  material  adverse effect  on  STAR and  its  financial
condition.
 
EMPLOYEES
 
    STAR  currently  has 186  permanent  employees. STAR  also  has a  roster of
temporary professional  and  paraprofessional  employees  (including  registered
nurses,  licensed  practical  nurses,  certified  home  health  aides, certified
personal care  workers  and nurse's  aides).  In  the past,  certain  of  STAR's
registered  nurses were compensated on an independent contractor basis. However,
STAR currently treats  such persons as  employees. STAR has  no union  contracts
with  any of its employees and believes that its relationship with its employees
and independent contractors is good. STAR pays its temporary employees at  rates
that it believes are competitive.
 
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<PAGE>
DESCRIPTION OF PROPERTIES
 
    STAR's  executive  offices consist  of  approximately 1,500  square  feet of
office space located in  Hicksville, New York. The  lease, from an  unaffiliated
landlord,  expires on December 31,  1998 and provides for  a base rent of $2,894
per month. STAR believes that its  executive office space is sufficient for  its
present and reasonably foreseeable future needs.
 
    STAR leases office space in Brooklyn, New York, Huntington, New York, Coram,
New York, Riverhead, New York, Long Beach, New York, Rome, New York, Oswego, New
York,  Syracuse, New  York, Miami, Florida,  Hollywood, Florida  and Lake Worth,
Florida, from landlords unaffiliated with STAR or any of its executive  officers
or  directors. The Brooklyn lease, which  expires February 14, 2002, consists of
3,700 square  feet  and provides  for  a base  rent  of $7,655  per  month.  The
Huntington  lease, which expires May 31, 2001, consists of 2,000 square feet and
provides for a base  rent of $3,194  per month. The  Coram lease, which  expires
July  1, 1999,  consists of 1,200  square feet and  provides for a  base rent of
$1,352 per month. The Riverhead lease, which expires January 31, 1997,  consists
of  1,000 square feet and provides for a base rent of $1,087 per month. The Long
Beach lease, which  expires June  30, 2001, consists  of 1,000  square feet  and
provides for a base rent of $1,183 per month, with annual increases of 2.5%. The
Rome  lease, which expires September  30, 1997, consists of  500 square feet and
provides for a  base rent of  $400 per  month. The Oswego  lease, which  expires
September  1, 1997, consists of 500 square feet and provides a base rent of $395
per month. The  Syracuse lease, which  expires July 1,  2000, consists of  1,000
square  feet and provides for a base rent  of $1,292 per month. The Miami lease,
which expires August 31, 1999, consists of 14,110 square feet and provides for a
base rent plus  tax of  $19,489 per month.  The Hollywood  lease, which  expires
November  30, 1999, consists of  2,000 square feet and  provides for a base rent
plus tax of $3,195 per month. The  Lake Worth lease, which expires February  15,
2000,  consists of 1,200 square feet and provides  for a base rent of $1,272 per
month.
 
LEGAL PROCEEDINGS
 
    In each of  January and November  1993, a different  subsidiary of STAR  was
selected  for an employment tax audit by  The New York State Department of Labor
("DOL"). In May 1993, one of STAR's subsidiaries received from the DOL a  formal
report  proposing an adjustment in  the amount of $73,000.  In January 1994, the
other of STAR's subsidiaries received from the DOL a formal report proposing  an
adjustment in the amount of $33,000.
 
    STAR  prevailed before  the hearing examiner  in the latter  of these cases,
which decision is presently  being appealed by the  DOL, and STAR is  vigorously
defending its position. STAR did not prevail in the former case and is currently
appealing  that decision. Both of these appeals  are pending before the New York
State Unemployment Appeal Board. Management believes that an unfavorable outcome
in either or  both of these  appeals would not  materially affect the  financial
position of STAR.
 
    Except  as otherwise provided, there are  no legal proceedings to which STAR
is currently a party or to which any of its property is subject, and STAR  knows
of no legal proceeding pending or threatened against either STAR or any director
or officer of STAR in his or her capacity as such.
 
                                       69
<PAGE>
                 STAR'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
    The  following  discussion and  analysis  provides information  which STAR's
management believes is  relevant to  an assessment and  understanding of  STAR's
results of operations and financial condition. This discussion should be read in
conjunction  with  the  consolidated  financial  statements  and  notes  thereto
appearing elsewhere herein.
 
RESULTS OF OPERATIONS
 
YEAR ENDED MAY 31, 1995 COMPARED TO YEAR ENDED MAY 31, 1994
 
    Net revenues increased $4,920,070 or 22% to $27,088,426 for the fiscal  year
ended  May 31, 1995 over  net revenues of $22,168,356  for the fiscal year ended
May 31, 1994. Approximately  3% of the  increase was due  to the acquisition  of
certain assets of Long Island Nursing Registry ("LINR") and approximately 35% of
the  increase was due  to the acquisition  of certain assets  of DSI Health Care
Services ("DSI") (see Note 7  to the Consolidated Financial Statements  included
elsewhere  in this report). Both  LINR and DSI were  involved exclusively in the
Home Care business. The remainder  of the increase was  due to a general  upward
trend  in  the Home  Care business.  Net  revenues from  Home Care  increased by
$6,107,423 or  32%  while  net  revenues from  Hospital  Staffing  decreased  by
$1,187,383 or 41%.
 
    STAR's  decreased revenues  from Hospital  Staffing resulted  from a general
decline in demand for those services.
 
    STAR's decided  shift  towards  Home  Care mirrors  a  changing  social  and
economic  attitude toward  the de-institutionalization  of patients.  Due to the
long hospital  stays of  some  terminally ill  patients  and the  greater  costs
associated  with institutional treatment plans,  STAR believes that the industry
(i.e. hospital, insurance  companies and home  care agencies) trend  is to  find
ways  to care for patients  in the home. STAR  continues to devote its resources
toward the growth in Home Care and  believes this upward trend will continue  in
the  future.  Home  Care  revenues represented  approximately  94%  of  1995 net
revenues  and  Hospital  Staffing  represented  approximately  6%  of  1995  net
revenues.
 
    Gross  profit margin percentages for the fiscal years ended May 31, 1995 and
1994 were 35%.
 
    Selling, General and Administrative expenses ("SG&A") as a percentage of net
revenues were  31% in  1995  as compared  with 32%  in  1994. Such  decrease  is
principally  attributable  to the  increase in  revenues  from Home  Care, being
absorbed by existing back-office overhead.
 
    Net income increased  by $219,808  or 45% to  $705,688 for  the fiscal  year
ended May 31, 1995 over net income of $485,880 for the fiscal year ended May 31,
1994.  The increase  occurred primarily because  of the  increased revenues from
Home Care, lower SG&A expenses as a percentage of revenues and lower tax rates.
 
    STAR's effective tax rate for 1995 was  40% as compared to 42% in 1994.  The
decrease  in  effective tax  rate is  due to  the growth  in STAR's  business in
Florida which has a lower rate than New York and the use of certain federal  tax
credits.
 
    In  October 1994,  a subsidiary of  STAR received from  the Internal Revenue
Service ("IRS") a formal report proposing  an adjustment in taxes of  $1,222,220
for  the  years 1989  through  and including  1993.  On October  12,  1995, that
subsidiary signed  a closing  agreement  with the  IRS  providing for  zero  tax
liability.  The subsidiary agreed to treat all skilled nurses providing Hospital
Staffing services as  employees for federal  employment tax purposes  commencing
January  1, 1996. As skilled Hospital Staffing services currently represent only
2% of revenues,  this change is  not expected  to have a  significant impact  on
earnings.
 
                                       70
<PAGE>
NINE MONTHS ENDED FEBRUARY 29, 1996 COMPARED TO NINE MONTHS ENDED FEBRUARY 28,
1995
 
    For  the  nine  months  ended  February  29,  1996,  net  revenues increased
$6,783,268 or 34% to $26,468,086 over  net revenues of $19,684,818 for the  nine
months ended February 28, 1995. For the nine months ended February 29, 1996, net
revenues  from Home Care increased by $7,200,059  or 39% while net revenues from
Hospital Staffing decreased by $416,791, or 29%.
 
    STAR's decreased revenues  from Hospital  Staffing resulted  from a  general
decline in demand for those services.
 
    STAR's  decided  shift  towards  Home Care  mirrors  a  changing  social and
economic attitude toward  the de-institutionalization  of patients.  Due to  the
long  hospital  stays of  some  terminally ill  patients  and the  greater costs
associated with institutional treatment plans,  STAR believes that the  industry
(i.e.  hospital, insurance  companies and home  care agencies) trend  is to find
ways to care for patients  in the home. STAR  continues to devote its  resources
toward  the growth in Home Care and  believes this upward trend will continue in
the future.  Home  Care  revenues represented  approximately  97%  and  Hospital
Staffing  represented approximately 3% of net revenues for the nine months ended
February 29, 1996.
 
    STAR's SG&A expenses  as a  percentage of sales  for the  nine months  ended
February 29, 1996 were 29% as compared to 31% for the nine months ended February
28, 1995. Such decrease is primarily attributable to the increase in monies from
Home Care being absorbed by existing back-office overhead.
 
    STAR's  effective tax rate  was 41% for  the nine months  ended February 29,
1996, as  compared to  43% for  the nine  months ended  February 28,  1995.  The
decrease in effective tax rate is primarily due to the growth in STAR's business
in Florida which has a lower rate than New York.
 
    For the nine months ended February 29, 1996 net income increased by $282,944
to  $750,026 over net income of $467,082  for the nine months ended February 28,
1995. This increase occurred primarily  because of increased revenues from  Home
Care and lower SG&A expenses as a percentage of revenues.
 
FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES
 
    As  of February 29, 1996, cash and cash equivalents were $59,696 as compared
with $270,344 at May 31, 1995.
 
    The nature of STAR's business requires  weekly payments to its personnel  at
the  time they render services, while  it receives payment for services rendered
over an extended period of  time (60 to 180  days or longer), particularly  when
the  payor is  an insurance company,  medical institution  or governmental unit.
Accounts receivable represent a substantial portion of current and total  assets
at February 29, 1996 and May 31, 1995. During the nine months ended February 29,
1996  accounts receivable turnover was approximately  75 days while for the year
ended May 31, 1995 turnover was 74 days.
 
    Borrowings under  STAR's revolving  line of  credit increased  approximately
$800,000  during the year ended May 31, 1995 and further increased by $1,500,000
during the period ended February 29, 1996. The increase in borrowings during the
year ended May 31, 1995 were used  to partially fund the initial acquisition  of
assets from LINR in May 1995. The increase in borrowings during the period ended
February  29, 1996 were  used to help  fund the increase  in accounts receivable
resulting  primarily  from  STAR's  acquisition  of  LINR.  STAR  currently  has
available  a  revolving  credit  line  with  a  bank  which  allows  for maximum
borrowings of $6,000,000. This revolving credit line expires on October 31, 1997
and is  subject to  renewal.  However, as  STAR's business  expands,  additional
financing  may be  required. Outstanding  borrowings under  the revolving credit
line at February 29, 1996 were $3,250,000  as compared to $1,750,000 at May  31,
1995.
 
    As  a result, STAR feels that  its current financial condition is sufficient
in order to  permit STAR to  meet its  financial requirements for  at least  the
ensuing twelve months.
 
                                       71
<PAGE>
    STAR  intends to meet its long-term  liquidity needs through available cash,
cash flow and, if necessary, STAR's bank line of credit. To the extent that such
sources are inadequate, STAR will be  required to seek additional financing.  In
such  event,  there  can  be  no assurance  that  additional  financing  will be
available to STAR on satisfactory terms.
 
    STAR is continually exploring possible acquisitions of compatible  companies
in  the  health care  business. If  any such  acquisition were  to be  made with
available cash, STAR's long-term liquidity would  depend to a greater extent  on
cash flow and the line of credit.
 
    In  May 1993,  one of  STAR's subsidiaries  received from  the DOL  a formal
report proposing  an adjustment  in the  amount of  $73,000 as  a result  of  an
employment  tax audit. In January 1994,  another of STAR's subsidiaries received
from the DOL a formal report proposing an adjustment in the amount of $33,000.
 
    STAR prevailed before  the hearing examiner  in the latter  of these  cases,
which  decision is presently being  appealed by the DOL,  and STAR is vigorously
defending its position. STAR did not prevail in the former case and is currently
appealing that  decision. Management  believes that  an unfavorable  outcome  in
either  or  both of  these  appeals would  not  materially affect  the financial
position of STAR.
 
    Other than  the  matters  described  above, STAR  does  not  anticipate  any
extraordinary  material commitments for capital  expenditures for STAR's current
fiscal year. STAR believes  that cash generated  from operations, together  with
borrowings  available under its  existing line of credit,  will be sufficient to
meet its short- and long-term liquidity needs.
 
INFLATION AND SEASONALITY
 
    The rate of inflation was insignificant during the year ended May 31,  1995.
In  the past, the  effects of inflation  on personnel costs  have been offset by
STAR's ability to increase its  charges for services rendered. STAR  anticipates
that  it will be able to continue to  do so in the near future. STAR continually
reviews its costs in relation to the pricing of its services.
 
    STAR's business is not seasonal.
 
                                       72
<PAGE>
         OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF STAR
 
    Set forth below is the ownership of  the STAR Common Stock at July 17,  1996
by  (i) the only  persons or groups who  were owners of record  or were known by
STAR to beneficially own more than 5%  of the outstanding shares of STAR  Common
Stock;  (ii) each director  of STAR; (iii)  each executive officer  named in the
Summary Compensation Table  under the caption  "EXECUTIVE COMPENSATION OF  STAR"
below;  and (iv) all directors  and executive officers of  STAR as a group. STAR
understands that, except as noted below,  each beneficial owner has sole  voting
and investment power with respect to all shares attributable to such owner.
 
<TABLE>
<CAPTION>
                                                                            NUMBER OF
NAME AND ADDRESS                                                           BENEFICIALLY      PERCENT
OF BENEFICIAL OWNER                                                       OWNED SHARES*   OF CLASS (1)
- ------------------------------------------------------------------------  --------------  -------------
<S>                                                                       <C>             <C>
Stephen Sternbach ......................................................    1,115,897(2)       42.63%
 c/o STAR Multi Care Services, Inc.
 99 Railroad Station Plaza
 Hicksville, NY 11801
Charles Berdan .........................................................          970          **
 281 Potomac Drive
 Basking Ridge, NJ 07920
William Fellerman ......................................................       58,320(3)        2.34%
 c/o STAR Multi Care Services, Inc.
 99 Railroad Station Plaza
 Hicksville, NY 11801
John P. Innes II .......................................................        1,060          **
 8 Breckenridge Lane
 Savannah, GA 31411
Matthew Solof ..........................................................        3,371          **
 33 Fairbanks Boulevard
 Woodbury, NY 11797
Heartland Advisors, Inc. ...............................................      213,802(4)        8.68%
 790 North Milwaukee Street
 Milwaukee, WI 53202
All directors and executive officers of STAR as
 a group (5 persons)....................................................    1,179,618          44.60%
</TABLE>
 
- ------------------------
 
 *  All  shares have  been adjusted  to take  into account  two stock dividends,
    effectuated on May 30, 1995 and January 12, 1996.
 
 ** Indicates less than 1% of the outstanding shares of STAR Common Stock.
 
(1) Shares subject to options are considered outstanding only for the purpose of
    computing the percentage  of outstanding  STAR Common Stock  which would  be
    owned  by the optionee if the options were so exercised, but (except for the
    calculation of beneficial ownership by all executive officers and  directors
    as  a group) are not considered outstanding for the purpose of computing the
    percentage of outstanding Common Stock owned by any other person.
 
(2) Includes 113,910 shares of STAR Common Stock owned by the Stephen  Sternbach
    Family  Trust; Mr. Sternbach disclaims  beneficial ownership with respect to
    these shares. Also includes  154,832 shares of STAR  Common Stock which  Mr.
    Sternbach  has currently exercisable options  to purchase pursuant to STAR's
    1992 Stock Option Plan.
 
(3) Includes 22,922 shares of STAR Common  Stock owned by Mr. Fellerman's  wife;
    Mr. Fellerman disclaims beneficial ownership with respect to these shares of
    STAR Common Stock. Also includes 3,244 shares owned by the William Fellerman
    CPA  PC Pension Trust Fund. Also includes 27,154 shares of STAR Common Stock
    which Mr. Fellerman has currently  exercisable options to purchase  pursuant
    to STAR's 1992 Stock Option Plan.
 
(4) Based upon a copy of a Schedule 13G received by STAR.
 
                                       73
<PAGE>
                               MANAGEMENT OF STAR
 
    The  directors  and  executive  officers of  STAR,  their  ages  and present
positions with STAR are as follows:
 
<TABLE>
<CAPTION>
                                                                                          DIRECTOR
        NAME              AGE                   POSITION HELD WITH STAR                     SINCE
- ---------------------     ---     ----------------------------------------------------  -------------
<S>                    <C>        <C>                                                   <C>
Stephen Sternbach             41  Chairman of the Board of Directors, President and         1987
                                   Chief Executive Officer
William Fellerman             51  Chief Financial Officer, Secretary, Treasurer,            1990
                                   Director
Charles Berdan+*x             47  Director                                                  1994
John P. Innes II+*x           62  Director                                                  1991
Matthew Solof+*x              43  Director                                                  1992
</TABLE>
 
- ------------------------
+ Member of Compensation Committee
 
* Member of Stock Option Committee
 
x Member of Audit Committee
 
    Stephen Sternbach has been the Chairman of the Board of Directors, President
and Chief Executive Officer of STAR since 1987.
 
    William Fellerman  has  been  the Chief  Financial  Officer,  Secretary  and
Treasurer  of STAR since  November 1992 and  a director of  STAR since 1990. Mr.
Fellerman is  a certified  public accountant  and was,  until June  15, 1994,  a
partner in the accounting firm of Fellerman, Cohen and Tempesta and had been for
more than the five years prior thereto.
 
    Charles  Berdan became  a director  of STAR  in April  1994 and  served as a
Branch Manager of STAR from September 1993 to March 1994. Since April 1994,  Mr.
Berdan  has  served as  a Sales  Executive for  Automatic Data  Processing, Inc.
("ADP"), a  provider of  information services.  From January  1993 to  September
1993, Mr. Berdan was a Vice President of the Senior Bulletin, a newspaper, which
STAR  purchased in September  1993. He also  served from July  1990 through July
1992 as  a Division  Vice President  of Managistics,  Inc., a  payroll  services
company.  For at least the two  years prior to July 1990,  Mr. Berdan was a Vice
President of ADP.
 
    John P. Innes II has been a director  of STAR since 1991. Since May of  1996
he  has been  Special Counsel  to ValuJet  Airlines. He  has acted  as a private
investor and consultant since July of 1994. He also serves as a director of  the
following  non-public  companies:  Commonwealth  Associates  Management Company,
Inc., Commonwealth  Associates Growth  Fund, Inc.  and American  Body Armor  and
Equipment,  Inc. Previously, he was the  Chairman of Commonwealth Associates, an
investment bank, from January 1992  to June 1994. Mr.  Innes also has served  as
Managing  Director  of Sabre  Insurance  Company, a  casualty  insurance company
(1986-1991), President  of Boxhall  Group,  Inc., a  holding company  for  Sabre
Insurance  Company  (1986-1991),  Vice Chairman  of  the Board  of  Directors of
Wheeling-Pittsburgh Steel Corporation, an integrated steel manufacturing company
(1987-1990) and a private investor and consultant (1990-1992).
 
    Matthew Solof has been a director  of STAR since November 1992. Since  1991,
he  has been  the President  and Chief  Executive Officer  of AMI  Group, a real
estate development and  acquisition company, and  President and Chief  Executive
Officer  of Mercantile  Mortgage Association,  a mortgage  lending company. From
1983 to 1992, Mr. Solof was a trader at IRV Companies, a firm which  specializes
in  oil trading,  and from  1981 to  1991 he  was President  and Chief Executive
Officer of Matthew Solof Trading Company,  a firm which also specializes in  oil
trading.
 
                                       74
<PAGE>
                         EXECUTIVE COMPENSATION OF STAR
 
    The  following table  summarizes the  compensation paid  or accrued  by STAR
during the three  fiscal years  ended May 31,  1995, to  STAR's Chief  Executive
Officer,  the only executive officer  of STAR whose salary  and bonus for fiscal
1995 exceeded $100,000.
 
SUMMARY COMPENSATION TABLE
<TABLE>
<CAPTION>
                                                                                               LONG TERM COMPENSATION
                                                                                          --------------------------------
                                                                                                       AWARDS
                                                ANNUAL COMPENSATION                       --------------------------------
                            ------------------------------------------------------------                      SECURITIES
NAME AND PRINCIPAL                                                     OTHER ANNUAL       RESTRICTED STOCK    UNDERLYING
POSITION                      YEAR      SALARY($)     BONUS($)        COMPENSATION($)        AWARD(S)($)      OPTIONS(#)
- --------------------------  ---------  -----------  -------------  ---------------------  -----------------  -------------
<S>                         <C>        <C>          <C>            <C>                    <C>                <C>
Stephen Sternbach ........    1995      $ 250,000        --                 --                   --               --
 Chief Executive Officer,     1994      $ 225,000        --                 --                   --               55,650
  President and Chairman      1993      $ 225,000        --                 --                   --               71,550
  of the Board
 
<CAPTION>
                                           PAYOUTS
                            --------------------------------------
NAME AND PRINCIPAL                                 ALL OTHER
POSITION                    LTIP PAYOUTS($)     COMPENSATION($)
- --------------------------  ---------------  ---------------------
<S>                         <C>              <C>
Stephen Sternbach ........        --                  --
 Chief Executive Officer,         --                  --
  President and Chairman          --                  --
  of the Board
</TABLE>
 
OPTION GRANTS IN LAST FISCAL YEAR
 
    No options were  granted to  Stephen Sternbach, the  only executive  officer
named  in the Summary Compensation  Table, during the fiscal  year ended May 31,
1995.
 
OPTION EXERCISES IN LAST FISCAL YEAR AND YEAR-END VALUES
 
    No options were exercised by Mr. Sternbach during the fiscal year ended  May
31,  1995. The  following table contains  information concerning  the number and
value, at May  31, 1995,  of unexercised options  held by  Mr. Sternbach  (after
giving  effect to two stock  dividends effected on May  30, 1995 and January 12,
1996, respectively):
 
<TABLE>
<CAPTION>
                                                                              VALUE OF
                                                            NUMBER OF       UNEXERCISED
                                                           UNEXERCISED      IN-THE-MONEY
                                                         OPTIONS HELD AT  OPTIONS HELD AT
                                                         FISCAL YEAR-END  FISCAL YEAR-END
                                                          (EXERCISABLE/    (EXERCISABLE/
NAME                                                     UNEXERCISABLE)   UNEXERCISABLE) (1)
- -------------------------------------------------------  ---------------  ----------------
<S>                                                      <C>              <C>
Stephen Sternbach......................................     134,832/0        $207,113/0
</TABLE>
 
- ------------------------
(1) Fair market  value of  underlying securities  (the closing  price of  STAR's
    Common  Stock on  the Nasdaq  National Market) at  fiscal year  end (May 31,
    1995), minus the exercise price.
 
STANDARD REMUNERATION OF DIRECTORS
 
    STAR's non-employee  directors are  paid a  fee of  $750 for  each Board  of
Directors  meeting which they attend.  They are not paid  any additional fee for
serving on any committees of the Board of Directors.
 
EMPLOYMENT AND MANAGEMENT AGREEMENTS
 
    STAR has an employment agreement with Stephen Sternbach dated as of December
3,  1995  (the  "Sternbach  Employment  Agreement").  The  Sternbach  Employment
Agreement has a term of five years and provides for an annual salary of $250,000
plus  a bonus of 6%  of STAR's net profit before  taxes in excess of $1,200,000,
not to exceed an  aggregate annual bonus of  $150,000. The Sternbach  Employment
Agreement  provides that after a Change in  Control (as defined in the Sternbach
Employment Agreement) of STAR has  occurred, if either Mr. Sternbach  terminates
his  employment within six months after he  has obtained actual knowledge of the
Change in Control or STAR (or  any successor thereto) terminates his  employment
with  STAR within one  year after the  Change in Control,  Mr. Sternbach will be
entitled to receive (i)  his salary, bonuses,  awards, perquisites and  benefits
including,  without limitation,  benefits and  awards under  STAR's stock option
plans and pension and  retirement plans and programs,  accrued through the  date
Mr.  Sternbach's employment with STAR is  terminated and (ii) a lump-sum payment
in cash equal to 2.99 times Mr. Sternbach's base amount.
 
                                       75
<PAGE>
             CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS OF STAR
 
    Stephen Sternbach has outstanding loans in the principal amount of  $102,490
from  STAR  and a  subsidiary of  STAR. The  loan from  the subsidiary  has been
assigned to STAR.  These loans bear  interest at 6%  per annum and  each have  a
scheduled maturity date of August 1, 1996.
 
    In  connection with services provided to  STAR during the fiscal years ended
May 31, 1994  and 1995,  STAR paid  William Fellerman,  CPA, P.C.  approximately
$100,000  each  year. Mr.  Fellerman, a  director  and Chief  Financial Officer,
Treasurer and Secretary of STAR, is the sole shareholder of that corporation.
 
                               BUSINESS OF AMSERV
 
GENERAL
 
    AMSERV was originally  incorporated under the  name of Phone-A-Gram  System,
Inc.  in  the  State  of  California  on  July  7,  1966,  and  was subsequently
reincorporated under the laws of the State of Delaware on September 29, 1983. On
October 24, 1987, AMSERV's name was changed  to AMSERV, INC., and on August  24,
1992, its name was again changed to AMSERV HEALTHCARE INC.
 
    AMSERV operates in a one-industry segment as a health care services company.
AMSERV provides Home Care services to individuals from its six branch offices in
New  Jersey and  Ohio. Home  Care services  provided by  AMSERV include personal
care, such as  assistance with  the activities  of daily  living (E.G.,  eating,
walking  and grooming),  and skilled nursing  services, such as  wound care, and
assistance with medications, injections and  patient education. Fiscal 1995  was
the  first full year of operations for  AMSERV's Ohio office, which was acquired
on June  10, 1994,  by  the purchase  of substantially  all  of the  assets  and
property  of North Central Personnel, Inc.  ("NCP"). On November 9, 1994, AMSERV
sold substantially all of  the fixed and intangible  assets of its eight  branch
offices that provided primarily temporary nursing services.
 
    AMSERV  receives payment  for its Home  Care services  from several sources.
Revenues  from  Medicaid  and   other  local  government  programs   represented
approximately  75% of  net sales from  continuing operations in  the fiscal year
ended June 24,  1995. The balance  is paid to  AMSERV from insurance  companies,
private payors and others.
 
    Home  Care  services are  marketed through  referrals from  public agencies,
hospitals, nursing homes and insurance companies. Both non-licensed and licensed
personnel provide services to  individuals in their  homes. Home Care  personnel
are recruited by AMSERV through newspaper advertisements and personal referrals.
 
    The  health care industry  is highly competitive.  AMSERV competes with many
other companies which offer  the same or similar  services as those provided  by
AMSERV. However, no one or two companies dominate the business. Although some of
AMSERV's competitors have greater capital resources than AMSERV, AMSERV believes
it  can compete because of  its responsiveness to the  needs of both clients and
health care personnel through its emphasis on service.
 
    At June  24, 1995,  AMSERV and  its subsidiaries  employed approximately  48
full-time  and  875  part-time  persons for  its  continuing  operations. AMSERV
strives to maintain good relations with its employees, considering them to be  a
key  to AMSERV's  success. No employees  are covered by  a collective bargaining
agreement.
 
DESCRIPTION OF PROPERTIES
 
    AMSERV  leases  seven  office  facilities,  which  are  located  in  Edison,
Elizabeth,  Fairlawn, South Orange and Union  City, New Jersey; Mansfield, Ohio;
and La Jolla, California, for the continuing operations of AMSERV. These  leases
expire  at  various  dates  through October  1999.  AMSERV  believes  that these
facilities are adequate for its operations.
 
                                       76
<PAGE>
    In connection with  the sale  of assets  of AMSERV  MEDICAL PRODUCTS,  INC.,
AMSERV  has  guaranteed  that  certain  lease  payments  will  be  made  by  the
purchasers. These payments are payable through September 1998.
 
LEGAL PROCEEDINGS
 
    On April  27, 1995,  Stockbridge Investment  Partners, Inc.  ("Stockbridge")
commenced  litigation in the Court  of Chancery of the  State of Delaware in and
for New Castle County (the "Delaware Litigation") against AMSERV and its current
directors, Melvin L.  Katten, Eugene  J. Mora,  Michael A.  Robinton, George  A.
Rogers  and Ben  L. Spinelli,  seeking an  order rescinding  the transactions by
which AMSERV exchanged a promissory note held by NCP for 426,794 shares of Class
A Redeemable Preferred Stock of AMSERV  (the "Class A Preferred") and  partially
financed  the exercise by Mr. Mora of stock options to acquire 177,562 shares of
AMSERV Common Stock,  and preliminarily  and permanently  enjoining AMSERV  from
recognizing such stock, as well as any stock proposed to be issued in connection
with a letter of intent referred to in AMSERV's April 13, 1995 press release, as
validly issued for purposes of voting or exercising rights to consent.
 
    Following settlement discussions between Stockbridge and AMSERV, the parties
entered into a Standstill Agreement and a Settlement Agreement and Release, both
dated  as of May 12, 1995  (collectively, the "Settlement Agreements"), pursuant
to which  Stockbridge agreed,  among other  things, to  (i) revoke  the  consent
delivered  April 7, 1995, (ii) suspend its  solicitation of consents to remove a
majority of AMSERV's  Board of Directors  and (iii) dismiss  with prejudice  the
Delaware  Litigation. Under the Standstill Agreement,  which expired on June 11,
1995, Stockbridge  and AMSERV  agreed  to continue  good faith  discussions  and
receive  more detailed  information regarding  a potential  business combination
involving AMSERV and York. In addition,  the parties further agreed that  solely
for  purposes of Stockbridge's renewed consent solicitation, the shares of Class
A Preferred would have no voting rights  and would not be deemed as  outstanding
voting  securities. In addition, a voting  agreement between AMSERV and NCP with
respect to the shares of Class A Preferred and a related irrevocable proxy  were
rescinded.
 
    On  August  23,  1995, the  Delaware  Court  of Chancery  ordered  AMSERV to
reimburse Stockbridge  for legal  fees  in the  amount  of $50,000  incurred  in
connection with the Delaware Litigation, which AMSERV paid on September 1, 1995.
 
    On February 22, 1996, Stockbridge commenced litigation against AMSERV in the
United  States  District  Court  for  the  District  of  Massachusetts.  In  its
complaint, Stockbridge alleges that AMSERV breached the terms of the October 18,
1995  agreement  between  AMSERV  and  Stockbridge  by  refusing  to  deal  with
Stockbridge's  "pre-emptive" proposal in a fair and equitable manner. The relief
sought by Stockbridge  includes reimbursement of  Stockbridge's expenses in  the
amount of $125,000, unspecified damages which Stockbridge estimates at more than
$275,000  and  attorneys' fees.  On March  14,  1996, AMSERV  filed a  motion to
dismiss Stockbridge's  complaint  for  lack  of  personal  jurisdiction.  AMSERV
denies,  and intends to vigorously defend  against, Stockbridge's claims in this
lawsuit.
 
    On April 9,  1996, Stockbridge  commenced litigation against  AMSERV in  the
Court  of  Chancery of  the  State of  Delaware for  New  Castle County.  In its
complaint, Stockbridge requests that the Court enter judgment summarily ordering
AMSERV to conduct an annual meeting of shareholders for the purpose of  electing
directors and conducting such other business as may properly be conducted at the
meeting.  AMSERV intends to seek a dismissal of  such action on the basis of its
scheduling an annual meeting of shareholders to consider and vote on the Merger,
to elect directors and to ratify the selection of Ernst & Young LLP as  AMSERV's
independent public accountants.
 
    On April 18, 1996, AMSERV commenced litigation in the United States District
Court for the Southern District of California against Stockbridge and certain of
its  affiliates  for numerous  violations  of Sections  13(d)  and 14(a)  of the
Exchange Act. Among the violations listed by AMSERV are the defendants'  failure
to  disclose  all  of  the  members  of  Stockbridge's  Section  13(d)  "group,"
misstatements in Stockbridge's consent
 
                                       77
<PAGE>
solicitation materials,  and  Stockbridge's failure  to  disclose its  offer  to
purchase  for $3.00 per  share any and  all outstanding shares  of AMSERV Common
Stock. AMSERV  seeks injunctive  relief  against Stockbridge's  solicitation  of
consents,  and a  declaration that the  Stockbridge group has  and must publicly
disclose beneficial ownership of 10% or more of the AMSERV Common Stock, thereby
triggering AMSERV's  Shareholder  Rights Plan.  On  May 28,  1996,  Stockbridge,
together  with  certain  of its  affiliates,  filed an  answer  and counterclaim
relating to  the  litigation  filed  by  AMSERV  in  the  Southern  District  of
California. The counterclaim names both AMSERV and Mr. Mora as counterdefendants
and  is structured as a derivative claim brought on behalf of AMSERV against Mr.
Mora. The counterclaim alleges that Mr. Mora engaged in
activities in breach of his fiduciary  duties and that the directors of  AMSERV,
including   Mr.  Mora,  undertook  a  series  of  actions  for  the  purpose  of
entrenchment. AMSERV and Mr. Mora deny, and intend to vigorously defend against,
the claims made by Stockbridge and its affiliates in the counterclaim.
 
    Subsequent to the termination of  Stockbridge's consent solicitation on  May
14,  1996, Stockbridge commenced negotiations with AMSERV in an effort to settle
the ongoing litigation between AMSERV  and Stockbridge. AMSERV and  Stockbridge,
with  the  assistance  of  Batchelder,  have  continued  to  discuss  a possible
settlement since that time,  but no definitive agreement  has yet been  reached.
AMSERV  intends  to  continue  to  pursue  a  resolution  of  its  disputes with
Stockbridge.
 
                                       78
<PAGE>
                AMSERV'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
LIQUIDITY AND CAPITAL RESOURCES
 
    Cash,  cash  equivalents  and  short-term  investments  in  total  decreased
$210,000,  from $2,619,000 to $2,409,000, during the first nine months of fiscal
1996. This decrease  is the result  of cash flows  from operations of  $258,000,
offset  primarily  by payment  of certain  liabilities associated  with AMSERV's
discontinued operations of  $276,000 which  were sold  in fiscal  1995, and  the
redemption  of AMSERV Class B Preferred of  $171,000. The decrease in cash flows
from operations from the  nine months ended  March 31, 1995  to the nine  months
ended March 23, 1996 was primarily due to increases in accounts receivable. Cash
and  cash equivalents  only increased  $1,079,000 during  the nine  months ended
March 23, 1996, due  primarily to the sale  of short-term investments and  their
conversion  to cash. AMSERV's balance sheet maintained a current ratio of 3.5 to
1 at  March 23,  1996. Working  capital requirements  consist primarily  of  the
financing  of  accounts  receivable  and  payments  due  for  the  redemption of
preferred stock. AMSERV believes that with its strong working capital condition,
it is well positioned to meet its anticipated cash requirements for operations.
 
RESULTS OF OPERATIONS
 
COMPARISON OF FISCAL YEAR 1995 TO 1994
 
    Operating revenues from continuing operations increased $3,816,000, or  51%,
from  $7,526,000 in  fiscal 1994  to $11,342,000  in fiscal  1995. This increase
included $1,230,000 from locations in operation for all of fiscal 1994 and  1995
which  represented an overall increase in the demand for Home Care services. The
remaining increase of  $2,586,000 consisted  of $257,000 from  the expansion  of
operations  to Union City,  New Jersey, which began  operations in October 1994;
and $2,329,000 for  a full  year of  operations associated  with AMSERV's  North
Central division, which was acquired in June 1994.
 
    SG&A  expenses  increased $3,593,000,  or 48%,  in  fiscal 1995  compared to
fiscal 1994. Direct variable costs increased  $1,352,000 due to the increase  in
operating  revenues for the year. The remaining increase consisted of $1,754,000
related to operations  for a full  year of AMSERV's  North Central division  and
$487,000   of  costs   incurred  in   connection  with   a  shareholder  consent
solicitation.  The  individual   components  of   operating  expenses   remained
consistent between periods as they relate to total operating expenses. The lower
percentage  increase in SG&A  expenses, 48% compared  to 51%, resulted primarily
from cost control efforts  and a streamlining of  corporate personnel after  the
sale of AMSERV's discontinued operations.
 
    Depreciation  and amortization increased  $42,000, or 11%,  from $373,000 in
fiscal 1994 to  $415,000 in  fiscal 1995 due  primarily to  the depreciation  of
equipment, furniture, fixtures and amortization of intangible assets acquired in
the acquisition of the assets of NCP.
 
    In  1995, interest  income increased  $5,000, or  6% over  fiscal 1994  as a
result of  an increase  in  cash, cash  equivalents and  short-term  investments
offset by the effects of lower interest rates on invested funds.
 
    Interest  expense increased from $8,000 in  fiscal 1994 to $52,000 in fiscal
1995 due to interest incurred on  the promissory note issued in connection  with
the acquisition of the assets of NCP.
 
    The effective income tax rate on income from continuing operations in fiscal
1995  was 4% compared to 28% for fiscal 1994. The 1994 benefit was primarily the
result of the  tax benefit  from measuring cumulative  temporary differences  in
connection  with the disposal  of the temporary  nursing services business which
reversed in fiscal 1995.
 
    During fiscal 1994, AMSERV discontinued  operation of its temporary  nursing
services  business and recorded a loss  from discontinued operations of $711,000
and an after-tax loss on the anticipated disposal of discontinued operations  of
$1,168,000. During fiscal 1995, the temporary nursing services business was sold
 
                                       79
<PAGE>
and  after  recognizing the  1994 writedown,  an after-tax  gain of  $30,302 was
recognized. The 1995 gain  resulted from the difference  between the actual  and
estimated  loss  on  the disposal.  See  Note  4 of  the  Notes  to Consolidated
Financial Statements for additional details.
 
    In fiscal 1995, AMSERV adopted  Statement of Financial Accounting  Standards
("SFAS")  No.  115,  "Accounting  for Certain  Investments  in  Debt  and Equity
Securities." The  cumulative  effect  of  the  change  in  accounting  principle
resulted  in  an  after-tax  adjustment to  earnings  for  unrealized  losses of
$24,000.
 
COMPARISON OF 1994 TO 1993
 
    Operating revenues from continuing  operations increased from $6,049,000  in
fiscal  1993 to  $7,526,000 in  fiscal 1994, an  increase of  24%. This increase
resulted from increases in the demand for Home Care services at all of  AMSERV's
locations.  Fiscal 1994  also includes  $174,000 in  operating revenues  for the
month of June 1994, resulting from the acquisition of the assets of NCP in  June
1994.
 
    SG&A expenses increased $1,414,000, or 24% in fiscal 1994 compared to fiscal
1993.  The increase is primarily associated with the increase in direct variable
costs due to  the increase  in operating revenue  for the  year. The  individual
components  of operating  expenses remained  consistent between  periods as they
relate to total operating expenses.
 
    In 1994, depreciation and amortization  increased $14,000 or 4% over  fiscal
1993  due  to the  depreciation  of equipment,  furniture  and fixtures  and the
amortization of intangible assets acquired in  the acquisition of the assets  of
NCP.
 
    Interest  income decreased to $89,000 in fiscal 1994 from $111,000 in fiscal
1993 as a direct  result of lower  interest rates on  funds invested in  various
money market funds, and an overall decrease in the cash balance.
 
    In  fiscal  1993,  the  remaining  long-term  debt  in  connection  with the
acquisition of the New Jersey Home Care services subsidiary was retired and this
reduction contributed  to the  decrease in  interest expense  of $16,000  during
fiscal 1994.
 
    The  effective income  tax rate on  the loss from  continuing operations for
fiscal 1994 was 28% compared to 45% for fiscal 1993. The 1994 benefit in  excess
of  the statutory rate is primarily the result of the tax benefit from measuring
cumulative temporary differences that will continue to reverse in future years.
 
    The operating  losses  from  AMSERV's temporary  nursing  services  business
prompted  the decision to  dispose of this  segment of the  business. Net losses
from discontinued operations  totaled $711,000  in fiscal 1994  and $359,000  in
fiscal  1993. The after-tax loss on the anticipated disposal of the discontinued
operations for fiscal 1994 of $1,168,000 consists of assets associated with  the
temporary nursing services business and transition expenses during the phase out
period  in  fiscal 1995.  See  Note 4  of  the Notes  to  Consolidated Financial
Statements for additional details.
 
COMPARISON OF NINE-MONTH PERIOD ENDED MARCH 23, 1996 TO NINE-MONTH PERIOD ENDED
MARCH 31, 1995
 
    Operating revenues for the nine-month period ended March 23, 1996  increased
$715,000  or 8%, over the  same period of a  year ago. Higher operating revenues
are the result of an overall increase in the demand for Home Care services.  The
increase  in  revenue resulting  from  increased demand  at  locations operating
during all of fiscal 1995 and 1996 was $154,000 for the nine-month period  ended
March  23, 1996,  compared to  the same  nine-month period  of fiscal  1995. The
increase resulting  from the  Union  City, New  Jersey  location, which  was  in
operation  for only a  partial period during  fiscal 1995, was  $561,000 for the
nine-month period ended March 23, 1996.
 
    SG&A expenses for the nine months ended March 23, 1996 increased $612,000 or
8%, compared to  the same period  of the  prior fiscal year.  This increase  was
primarily  the result of the direct  variable costs associated with the increase
in operating revenues; the fixed costs incurred regarding the start-up office in
Union City, New Jersey, which began  operations in October 1994; and  additional
expenses incurred in
 
                                       80
<PAGE>
connection with the JCAHO accreditation program initiated throughout the offices
in  New Jersey and  Ohio and the  implementation of new  pediatric and marketing
programs in  New Jersey.  The individual  components of  SG&A expenses  remained
constant as they relate to total operating expenses.
 
    Depreciation and amortization decreased $55,000 or 17% during the nine-month
period  ended March 23, 1996  over the same period  of fiscal 1995. This overall
decrease was the  result of a  reduction of amortization  expense in  connection
with  the  intangible  assets  acquired  in  the  purchase  of  the  New  Jersey
subsidiary, part  of which  became fully  amortized, offset  by an  increase  in
depreciation expense due to the purchase of equipment, furniture and fixtures.
 
    Interest  income totalled $120,000 during  the nine-month period ended March
23, 1996 compared to $67,000 during the  same period of a year ago. The  overall
increase  of $53,000 during the nine-month period ended March 23, 1996 is due to
interest and dividends received during the period related to various  short-term
investments   and  interest  earned  during  fiscal  1996  on  promissory  notes
receivable from an officer of AMSERV  related to the exercise of employee  stock
options.
 
    For  the  nine  months ended  March  23,  1996, net  income  from continuing
operations increased  52%  to  $342,000,  compared  to  $225,000  for  the  same
nine-month period of fiscal 1995. Net income for the nine-month period of fiscal
1995  included an after-tax gain of $169,000 as a result of the sale of AMSERV's
temporary nursing services business.
 
    Provision for  income  taxes increased  from  $79,000 to  $224,000  for  the
nine-month  period ended March  23, 1996 compared  to the same  period of fiscal
1995, which is an  overall increase of  53% in AMSERV's  effective tax rate.  In
addition,  the average  shares outstanding used  in computing  per share amounts
increased 4% for the nine-month period of fiscal 1996 compared to fiscal 1995.
 
                                       81
<PAGE>
        OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF AMSERV
 
    The following table  sets forth, as  of July 17,  1996, certain  information
with  respect to the beneficial ownership of the AMSERV Voting Stock by (i) each
person known by AMSERV to own beneficially  more than five percent of any  class
of  the AMSERV Voting Stock, (ii) each  director of AMSERV, (iii) each executive
officer of AMSERV  named in  the Summary  Compensation Table  under the  caption
"EXECUTIVE  COMPENSATION OF AMSERV" below, and  (iv) all directors and executive
officers of AMSERV as a group.
 
<TABLE>
<CAPTION>
                                            AMOUNT AND
                                             NATURE OF
                                            BENEFICIAL
  NAME AND ADDRESS OF BENEFICIAL OWNER    OWNERSHIP (1)(2)        PERCENT OF CLASS
- ----------------------------------------  ---------------  ------------------------------
<S>                                       <C>              <C>
Eugene J. Mora                               544,527       16.3% of Common Stock
3252 Holiday Court, Suite 204                              15.7% of Voting Stock
La Jolla, California 92037
John Parker                                  235,000       7.0% of Common Stock
P.O. Box 9582                                              6.8% of Voting Stock
San Diego, California 92169
The Stockbridge Group                        202,845(3)    6.1% of Common Stock
2 South Street, Suite 360                                  5.9% of Voting Stock
Pittsfield, Massachusetts 01201
Melvin L. Katten                             142,397       4.3% of Common Stock
525 West Monroe Street, Suite 1600                         4.1% of Voting Stock
Chicago, Illinois 60661
Michael A. Robinton                          125,548       3.8% of Common Stock
969 Commercial Street                                      3.6% of Voting Stock
Palo Alto, California 94303
George A. Rogers                              10,364       0.3% of Common Stock
6780 N. West Avenue, Suite 103                             0.3% of Voting Stock
Fresno, California 93711
Ben L. Spinelli                                  375                     --
2-E Buckingham Road
West Orange, New Jersey 07052
North Central Personnel, Inc.                130,071(4)    100% of Class B Preferred
713 South Main Street                                      3.8% of Voting Stock
Mansfield, Ohio 44907
All Directors and Executive Officers as
 a Group (7 persons)                         840,711       24.9% of Common Stock
                                                           24.0% of Voting Stock
</TABLE>
 
- ------------------------
(1) Unless otherwise indicated below, the persons  in the above table have  sole
    voting   and  investment  control  with  respect  to  all  shares  shown  as
    beneficially owned by them, and all shares listed are AMSERV Common Stock.
 
(2) Includes the following shares of AMSERV  Common Stock which may be  acquired
    within  60 days of July 17, 1996  through the exercise of nonqualified stock
    options ("Option  Shares"): Eugene  J. Mora  -- 35,000  Option Shares;  John
    Parker  -- 30,000 Option  Shares; Melvin L. Katten  -- 10,365 Option Shares;
    Michael A.  Robinton --  10,365 Option  Shares; George  A. Rogers  --  8,711
    Option  Shares; Ben L. Spinelli -- 375  Option Shares; and all directors and
    executive officers as a group -- 72,316 Option Shares.
 
                                       82
<PAGE>
(3) Includes 400 shares of AMSERV Common  Stock held by Lenox Healthcare,  Inc.,
    17,201  shares (including the 400 Lenox  shares) of AMSERV Common Stock held
    individually by Thomas M. Clarke, and  10,000 shares of AMSERV Common  Stock
    held  individually by Lawrence B. Cummings, which were reported on Amendment
    No. 10  to a  joint Schedule  13D dated  April 18,  1996. According  to  the
    Schedule  13D,  York Hannover  Pharmaceuticals, Inc.  has shared  voting and
    dispositive power  over 175,644  shares, Lenox  Healthcare Inc.  has  shared
    voting and dispositive power over 400 shares, Mr. Clarke has sole voting and
    dispositive power over 17,201 shares and shared voting and dispositive power
    over  175,644 shares, and Mr. Cummings has sole voting and dispositive power
    over 10,000  shares and  shared voting  and dispositive  power over  175,644
    shares.
 
(4) Shares  of AMSERV's Class B  Preferred. L. Diane Gurik,  the founder of NCP,
    may be deemed to have beneficial ownership of the shares held by NCP.
 
                          ELECTION OF AMSERV DIRECTORS
 
    At the AMSERV Meeting, five  directors are to be  elected. If the Merger  is
not  consummated, these  directors will serve  until the next  Annual Meeting of
Shareholders and until their  respective successors have  been duly elected  and
qualified. If the Merger Agreement is approved and adopted at each of the AMSERV
Meeting and STAR Meeting and the Merger is consummated, the directors elected at
the  AMSERV Meeting will hold office only  until consummation of the Merger and,
in accordance with the  terms of the Merger  Agreement, the directors of  Merger
Sub  would then  become the  directors of AMSERV.  Each nominee  has indicated a
willingness to serve as a director of AMSERV.
 
    All proxies received by management will be voted as directed on proxy cards.
In the absence of contrary instruction, shares represented by such proxies  will
be voted for the election of the nominees named below as directors of AMSERV.
 
    If  prior to the AMSERV Meeting any  of the nominees should become unable or
decline to serve, the persons named in  the proxy will vote for such  substitute
nominee  or nominees as the Board of  Directors of AMSERV recommends, or vote to
allow the vacancy created thereby  to remain open until  filled by the Board  of
AMSERV,  as the Board of AMSERV recommends. The Board of Directors of AMSERV has
no reason to believe that any nominee will be unable or will decline to serve as
a director if elected.
 
    Biographical information  follows  for each  nominee  to the  AMSERV  Board.
Directors' ages are as of July 17, 1996.
 
NOMINEES FOR ELECTION
 
<TABLE>
<CAPTION>
                                                                                    DIRECTOR
          NAME               AGE                 POSITION WITH AMSERV                 SINCE
- ------------------------     ---     ---------------------------------------------  ---------
<S>                       <C>        <C>                                            <C>
Eugene J. Mora                   61  Chairman of the Board, Chief Executive           1986
                                      Officer, President and Director
Melvin L. Katten                 59  Director                                         1985
Michael A. Robinton              52  Director                                         1981
George A. Rogers                 49  Director                                         1987
Ben L. Spinelli                  62  Director                                         1995
</TABLE>
 
    EUGENE  J. MORA.  Mr.  Mora has been Chairman  of the Board, Chief Executive
Officer and President of  AMSERV since joining  AMSERV on March  2, 1987. He  is
also  Chief Executive  Officer of  AMSERV's subsidiaries.  Mr. Mora  serves as a
director of  Washington Scientific  Industries, Inc.,  a publicly-held  company.
From  July  1974  through February  1987,  he  was President  of  Kidde Business
Services, Inc., a temporary
 
                                       83
<PAGE>
and health care services company. Mr. Mora  has been a director of AMSERV  since
October  1986.  Mr.  Mora's  employment  contract  with  AMSERV  provides  that,
throughout the term of  his employment, AMSERV will  nominate him as a  director
and that it will use its best efforts to have him elected as a director.
 
    MELVIN L. KATTEN.  Mr. Katten, an attorney, has been a Senior Partner in the
Chicago  law firm of Katten Muchin & Zavis since 1974. He has been a director of
AMSERV since 1985 and is  a member of the  Audit and Compensation Committees  of
the  Board.  Mr.  Katten also  serves  as  a director  of  Washington Scientific
Industries, Inc., a publicly-held company.
 
    MICHAEL A. ROBINTON.   Mr. Robinton  has been President  of Petals, Inc.  of
Palo  Alto,  California, a  closely-held  manufacturing company  specializing in
children's apparel,  since 1990.  From  1979 to  1989,  he was  Vice  President,
Engineering,   and  a  director  of  Robinton  Products,  Inc.,  a  closely-held
electronics company located in Sunnyvale, California. He has been a director  of
AMSERV  since 1981 and is  a member of the  Audit, Compensation and Stock Option
Committees.
 
    GEORGE A. ROGERS.  Mr. Rogers has been President and Chief Executive Officer
of PrideStaff, Inc. (formerly  known as American  Temporary Services, Inc.),  of
Fresno,  California, a provider of temporary  personnel services, since 1978. He
has been  a  director of  AMSERV  since  1987 and  is  a member  of  the  Audit,
Compensation and Stock Option Committees.
 
    BEN  L. SPINELLI.  Mr. Spinelli has been President of BLS Consulting in West
Orange, New Jersey, which provides marketing and business services, since  1991.
From 1975 to 1991, he was employed by First Fidelity Bank of Newark, New Jersey,
where  he served as  Executive Vice President prior  to retirement. Mr. Spinelli
has been a director of AMSERV since January  1995 and is a member of the  Audit,
Compensation and Stock Option Committees.
 
CERTAIN COMMITTEES OF THE BOARD
 
    AMSERV  has an Audit Committee, a  Compensation Committee and a Stock Option
Committee. The Audit Committee, currently comprised of Messrs. Katten, Robinton,
Rogers and Spinelli,  held one  meeting during the  fiscal year  ended June  24,
1995.  The  Audit  Committee  reviews,  in  consultation  with  the  independent
auditors, the audit results and the auditors' opinion letter or proposed  report
of  audit and related management letter, if any; reviews the independence of the
independent auditors  and, in  this connection,  reviews the  engagement of  the
independent  auditors  for services  of a  non-audit  nature; consults  with the
independent auditors and management (together or separately) on the adequacy  of
internal  accounting  controls  and  reviews  the  results  thereof;  supervises
investigations into  matters within  the scope  of the  Committee's duties;  and
performs  such other functions as may be necessary in the efficient discharge of
its duties.
 
    The Compensation Committee, currently comprised of Messrs. Katten, Robinton,
Rogers and Spinelli,  held two meetings  during the fiscal  year ended June  24,
1995.  The Compensation Committee reviews and makes recommendations to the Board
with respect to the compensation of AMSERV's executive officers.
 
    The Stock Option Committee, currently comprised of Messrs. Robinton,  Rogers
and  Spinelli, held six meetings during the fiscal year ended June 24, 1995. The
Stock Option Committee determines all matters  related to the granting of  stock
options pursuant to the AMSERV Stock Option Plan.
 
    AMSERV does not have a Nominating Committee.
 
ATTENDANCE AT MEETINGS
 
    The  AMSERV Board held twelve meetings during the fiscal year ended June 24,
1995. Each director except  Mr. Spinelli (who became  a director on January  26,
1995)  attended at least  75% of the  aggregate of the  number of Board meetings
held and the number of meetings of committees on which he served that were  held
during the fiscal year ended June 24, 1995.
 
                                       84
<PAGE>
COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT
 
    Section  16(a) of the Exchange Act requires AMSERV's officers and directors,
and persons who  own more than  ten percent  of a registered  class of  AMSERV's
equity  securities, to file  reports of ownership and  changes of ownership with
the Commission and each  exchange on which  AMSERV's securities are  registered.
Officers,  directors and greater  than ten percent  shareholders are required by
Commission regulations to furnish AMSERV with copies of all ownership forms they
file.
 
    Based solely on its review  of the copies of such  forms received by it,  or
written  representations from certain  persons that no  such forms were required
for those persons, AMSERV believes that,  during the fiscal year ended June  24,
1995, its officers, directors and greater than ten percent shareholders complied
with all applicable Section 16 filing requirements.
 
COMPENSATION OF DIRECTORS
 
    Directors  who are not employees of AMSERV  receive $400 for each meeting of
the AMSERV Board which  they attend. In  addition, each director  who is not  an
employee  of AMSERV is  paid an annual  retainer of $700  and receives an annual
grant of options to purchase 1,500 shares of AMSERV Common Stock.
 
    THE AMSERV BOARD  OF DIRECTORS  UNANIMOUSLY RECOMMENDS  A VOTE  FOR THE  RE-
ELECTION OF THE DIRECTORS.
 
                          EXECUTIVE OFFICERS OF AMSERV
 
    Set  forth below is a table identifying executive officers of AMSERV who are
not identified in the Nominees for Election table under the caption "ELECTION OF
AMSERV DIRECTORS."
 
<TABLE>
<CAPTION>
      NAME            AGE                           POSITION
- -----------------     ---     ----------------------------------------------------
<S>                <C>        <C>
Leslie Hodge          43      Secretary and Vice President -- Administration
Lori Anderson         35      Treasurer and Controller
</TABLE>
 
    LESLIE HODGE.   Ms. Hodge  joined AMSERV in  September 1990  as Director  of
Human  Resources for the AMSERV NURSES, INC. subsidiary and was promoted to Vice
President of Human  Resources in July  1991. In  June 1992, she  was named  Vice
President -- Administration and Secretary of AMSERV. From 1981 through 1990, she
was  employed  by PS  Trading, Inc.,  a sister  subsidiary of  Pacific Southwest
Airlines, as Vice President of Administration.
 
    LORI ANDERSON.  Ms. Anderson joined  AMSERV in November 1993 as Director  of
Financial   Planning  and  in  December  1994  was  promoted  to  Treasurer  and
Controller. From 1991 through 1993, she was employed by TheraTx, Incorporated, a
provider  of  rehabilitation  therapy   services,  as  Accounting  Manager   and
Controller.  Ms. Anderson received her CPA Certificate in 1985 while working for
Vekich, Arkema  &  Co.,  Chartered, an  independent  accounting  and  management
advisory  firm, where  she worked as  an auditor and  accounting supervisor from
1984 through 1990.
 
    The AMSERV Board  of Directors  elects officers annually  and such  officers
serve  at the discretion of  the Board. There are  no family relationships among
any of the directors or executive officers of AMSERV.
 
                        SIGNIFICANT EMPLOYEES OF AMSERV
 
    Set forth below is a table of significant employees of AMSERV.
 
<TABLE>
<CAPTION>
        NAME             AGE                             POSITION
- --------------------     ---     --------------------------------------------------------
<S>                   <C>        <C>
Kenneth Freeman          60      Regional Manager of AMSERV HEALTHCARE OF NEW JERSEY,
                                  INC.
L. Diane Gurik           47      President, North Central Personnel Division of AMSERV
                                  HEALTHCARE OF OHIO INC.
</TABLE>
 
                                       85
<PAGE>
    KENNETH FREEMAN.   Mr.  Freeman  joined AMSERV  in  March 1991  when  AMSERV
HEALTHCARE OF NEW JERSEY, INC. acquired the assets of Always Care of New Jersey,
Inc.  ("Always Care"), a Home  Care company. Mr. Freeman  founded Always Care in
1976. He continues as Regional Manager  of the subsidiary supervising five  Home
Care offices in New Jersey.
 
    L.  DIANE GURIK.  Ms.  Gurik joined AMSERV in  June 1994 in conjunction with
the acquisition of the assets of North Central Personnel, Inc. ("NCP") by AMSERV
HEALTHCARE OF OHIO INC. ("AHO"), a wholly-owned subsidiary of AMSERV. Ms.  Gurik
founded NCP, a Home Care company, in 1983. She continues as the President of the
North Central division of AHO.
 
            CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS OF AMSERV
 
    Melvin L. Katten, a director of AMSERV, is a partner in the Chicago law firm
of  Katten Muchin & Zavis to which  AMSERV incurred fees of $114,208 for certain
legal services during the fiscal year ended June 24, 1995.
 
    On July 21, 1992,  AMSERV acquired the assets  of MED-PRO, Inc. Pursuant  to
the  terms of the acquisition, an interest-bearing  loan of $100,000 was made to
the seller, John Parker, the owner of  7.0% of the outstanding shares of  AMSERV
Common  Stock.  Mr. Parker  entered into  a  two-year Consulting  Agreement with
AMSERV as  of  June  1, 1994  which  provided  that the  balance  on  such  loan
($100,000)  would be  canceled immediately  in exchange  for consulting services
over the succeeding two-year period.
 
    On June 10, 1994, AMSERV, through its wholly-owned subsidiary AHO,  acquired
substantially  all of  the assets  and property of  NCP for  an initial purchase
price of $1,553,835. AMSERV paid $553,835 of the purchase price in cash, and the
balance of  $1,000,000  was  financed  by a  promissory  note  payable  to  NCP.
Following  such acquisition,  L. Diane Gurik,  the founder of  NCP, retained her
position with NCP  and in  addition became the  President of  the North  Central
division  of AHO. Pursuant to a stock  purchase agreement between AMSERV and NCP
dated as  of April  7,  1995 (the  "Stock  Purchase Agreement"),  the  remaining
balance  on the  promissory note  ($833,334) and  related accrued  interest were
exchanged for 426,794 shares  of Class A Preferred.  See "BUSINESS OF AMSERV  --
Legal Proceedings" for a discussion of modifications to the voting rights of the
Class  A Preferred pursuant  to the Settlement  Agreements. Subsequently, 85,359
shares were redeemed in accordance with the terms of the Class A Preferred,  and
the remaining 341,435 shares were exchanged for 260,141 shares of AMSERV Class B
Preferred.  Pursuant to the terms of the AMSERV Class B Preferred, 65,035 shares
were redeemed on each of February 1, 1996 and May 29, 1996, making NCP the owner
of 130,071 shares of the AMSERV Class B Preferred (representing 100% of AMSERV's
outstanding preferred  stock  and  approximately 3.8%  of  AMSERV's  outstanding
Voting  Stock). Under the Stock Purchase Agreement, the final purchase price for
the assets of NCP (which  is contingent on an earnout  and will be equal to  the
operating income of North Central for the three-year period ending June 9, 1997)
may not be less than $2,153,835 nor more than $2,553,835.
 
    On  April 20, 1995, AMSERV  accepted a promissory note  from Eugene J. Mora,
Chairman, Chief Executive  Officer and  President of  AMSERV, in  the amount  of
$198,440  in partial payment for 177,562  shares of AMSERV Common Stock acquired
upon the exercise of stock options held by Mr. Mora. The non-recourse promissory
note, which  matures in  April 2000,  was secured  by 177,562  shares of  AMSERV
Common  Stock owned by Mr. Mora and bore  interest at the rate of 10% per annum.
On January 16, 1996, the promissory note  was amended to become a recourse  note
secured  by 110,000 shares of AMSERV Common  Stock owned by Mr. Mora, which will
bear interest at the rate of 5.73% per annum.
 
    Also on January 16,  1996, AMSERV accepted a  recourse promissory note  from
Mr.  Mora in  the amount of  $199,342 in  partial payment for  110,500 shares of
AMSERV Common Stock  acquired upon  the exercise of  stock options  held by  Mr.
Mora.  The promissory  note is  secured by the  110,500 shares  of AMSERV Common
Stock owned by  Mr. Mora,  bears interest  at the rate  of 5.73%  per annum  and
matures in January 2001.
 
                                       86
<PAGE>
                        EXECUTIVE COMPENSATION OF AMSERV
 
    The  following table provides  information with respect  to all compensation
paid by AMSERV during the  fiscal years ended June 24,  1995, June 30, 1994  and
June  30, 1993, to AMSERV's  Chief Executive Officer, who  is the only executive
officer who had compensation (combined salary  and bonus) in excess of  $100,000
(the "Named Officer").
 
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                                     LONG TERM
                                                                                                   COMPENSATION
                                                                                                      AWARDS
                                                                 ANNUAL COMPENSATION               -------------
                                                    ---------------------------------------------   SECURITIES
                                                                                 OTHER ANNUAL       UNDERLYING        ALL OTHER
NAME AND PRINCIPAL POSITION                YEAR     SALARY($)    BONUS($)       COMPENSATION($)     OPTIONS(#)     COMPENSATION($)
- ---------------------------------------  ---------  ---------  -------------  -------------------  -------------  ------------------
<S>                                      <C>        <C>        <C>            <C>                  <C>            <C>
Eugene J. Mora ........................       1995    298,000       --                --                --               1,710(1)
 Chairman, President and Chief                1994    298,000       --                --                --               2,325
 Executive Officer                            1993    298,000       --                --                12,500           3,342
</TABLE>
 
- ------------------------
(1) AMSERV's contributions to 401(k) Plan.
 
    The  following  table  provides information  regarding  the  Named Officer's
unexercised options at  June 24, 1995.  No stock options  or stock  appreciation
rights were granted to the Named Officer during fiscal 1995.
 
             AGGREGATED AMSERV OPTION EXERCISES IN LAST FISCAL YEAR
                       AND FISCAL YEAR-END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                          NUMBER OF SECURITIES UNDERLYING         VALUE OF UNEXERCISED
                                                           UNEXERCISED OPTIONS AT FISCAL          IN-THE-MONEY OPTIONS
                                   SHARES                             YEAR-END                     AT FISCAL YEAR-END
                                 ACQUIRED ON              --------------------------------  --------------------------------
NAME                              EXERCISE      VALUE     EXERCISABLE     UNEXERCISABLE     EXERCISABLE     UNEXERCISABLE
- -------------------------------  -----------  ----------  -----------  -------------------  -----------  -------------------
<S>                              <C>          <C>         <C>          <C>                  <C>          <C>
Eugene J. Mora.................     177,562   $  139,063     175,500                0        $ 158,728        $       0
</TABLE>
 
EMPLOYMENT AGREEMENTS
 
    Pursuant  to the Mora Employment Agreement, which continues until terminated
upon 30 days  written notice, if  Mr. Mora is  terminated without cause,  AMSERV
shall  pay to  Mr. Mora  the compensation  he earned  in the  final year  of his
employment in each of the immediately following five years and shall transfer to
Mr. Mora  any individual  life  insurance policies  owned  by AMSERV.  The  Mora
Employment  Agreement includes  covenants which  restrict Mr.  Mora from certain
business activities following  termination of  employment, for a  period of  one
year.
 
    Pursuant  to the Mora Consulting  Agreement, Mr. Mora will  be retained as a
consultant to AMSERV for the two years immediately following termination of  his
employment for which he will receive $129,200 per year in compensation. Pursuant
to  a resolution approved by the Board of Directors of AMSERV, Mr. Mora's health
insurance coverage will be maintained by AMSERV following his retirement.
 
    Pursuant to  an employment  agreement dated  March 21,  1995 between  Leslie
Hodge  and AMSERV (the "Hodge  Employment Agreement"), which has  a term of four
years from the date of the agreement, if within 36 months following a "change in
control" of  AMSERV,  Ms.  Hodge  is  terminated  without  cause  or  Ms.  Hodge
terminates  her employment for good reason, AMSERV  shall (i) pay to Ms. Hodge a
lump sum cash payment equal to three times the average annual compensation  that
was  includible in Ms. Hodge's  gross income during each  of the past five years
and (ii) continue  Ms. Hodge's benefits  for a  period of 36  months. The  Hodge
Employment  Agreement defines  "change in control"  to mean  (a) any individual,
entity or group acquires  beneficial ownership of greater  than 50% of the  then
outstanding shares of AMSERV Common
 
                                       87
<PAGE>
Stock   or  (b)   AMSERV's  shareholders   approve  a   reorganization,  merger,
consolidation or similar transaction, unless  such acquisition (as described  in
clause  (a) above)  or such  transaction (as described  in clause  (b) above) is
approved by AMSERV's Board of Directors. The Hodge Employment Agreement includes
covenants which restrict  Ms. Hodge from  certain business activities  following
termination  of employment  (unless such  termination is  following a  change in
control and is by AMSERV without cause or  by Ms. Hodge for good reason), for  a
period of one year.
 
    The  Hodge Employment Agreement was subsequently  amended to provide that if
within 24 months following  a "board approved change  in control," Ms. Hodge  is
terminated without cause or Ms. Hodge terminates her employment for good reason,
AMSERV  shall (i) pay to Ms. Hodge a lump  sum payment equal to 12 months of the
highest monthly base  salary received by  Ms. Hodge in  any one of  the past  60
months  and (ii) continue  Ms. Hodge's benefits  for a period  of 12 months. The
Hodge Employment  Agreement,  as  amended, defines  "board  approved  change  in
control"  to  mean  (a)  any individual,  entity  or  group  acquires beneficial
ownership of greater than  50% of the then  outstanding shares of AMSERV  Common
Stock   or  (b)   AMSERV's  shareholders   approve  a   reorganization,  merger,
consolidation or  similar transaction,  and such  acquisition (as  described  in
clause  (a) above)  or such  transaction (as described  in clause  (b) above) is
approved by AMSERV's Board of Directors.
 
    AMSERV is also a party to  an employment agreement with Lori Anderson  which
contains  identical terms to those set  forth in the Hodge Employment Agreement,
except that if within 24 months following a "board approved change in  control,"
Ms.  Anderson  is  terminated  without  cause  or  Ms.  Anderson  terminates her
employment for good  reason, AMSERV shall  (i) pay  to Ms. Anderson  a lump  sum
payment  equal to six months of the  highest monthly base salary received by Ms.
Anderson in any  one of  the past  60 months  and (ii)  continue Ms.  Anderson's
benefits for a period of six months.
 
                         RATIFICATION OF APPOINTMENT OF
                    INDEPENDENT PUBLIC ACCOUNTANTS OF AMSERV
 
    AMSERV  proposes to engage Ernst & Young  LLP to serve as independent public
accounts for its 1996 fiscal year. Ernst & Young LLP audited AMSERV's books  and
records for the fiscal year ended June 24, 1995.
 
    On  March  21,  1995,  Deloitte  &  Touche  LLP  was  dismissed  as AMSERV's
independent auditors and on March 21, 1995, AMSERV retained Ernst & Young LLP as
independent auditors for AMSERV for its fiscal year ended June 24, 1995.
 
    For AMSERV's fiscal  years ended June  30, 1994 and  1993, the  accountants'
reports  on AMSERV's financial statements did  not contain an adverse opinion or
disclaimer of opinion, nor  were they qualified or  modified as to  uncertainty,
audit scope, or accounting principles.
 
    AMSERV's  decision to  change its independent  auditors was  approved by its
Board of Directors  at a meeting  held March  21, 1995. In  connection with  the
audits  of AMSERV's financial statements for each  of the two fiscal years ended
June 30,  1994  and 1993,  and  any  subsequent interim  period  preceding  such
dismissal, there were no disagreements with Deloitte & Touche LLP on any matters
of  accounting  principles  or  practices,  financial  statement  disclosure, or
auditing scope and  procedures which,  if not  resolved to  the satisfaction  of
Deloitte & Touche LLP, would have caused Deloitte & Touche LLP to make reference
to the matter in their report.
 
    Deloitte  &  Touche LLP  furnished  a letter  dated  April 25,  1995  to the
Commission stating that it agreed with the above statements.
 
    A resolution will be presented at the AMSERV Meeting to ratify the selection
of Ernst & Young LLP by the  Board of Directors of AMSERV as independent  public
accountants  to audit  the accounts  and records of  AMSERV for  the fiscal year
ended June 29, 1996, and to perform  other appropriate services. In the event  a
 
                                       88
<PAGE>
majority  of the  votes cast  at the AMSERV  Meeting are  not voted  in favor of
ratification, the adverse vote will be considered as a direction to the Board of
AMSERV to select other independent public accountants for the 1996 fiscal year.
 
    It is anticipated that Ernst & Young  LLP will have a representative at  the
AMSERV  Meeting, that  the representative  will have  the opportunity  to make a
statement and that anyone wishing to do so may question him.
 
    THE AMSERV  BOARD  OF  DIRECTORS  UNANIMOUSLY  RECOMMENDS  A  VOTE  FOR  THE
RATIFICATION OF ERNST & YOUNG LLP AS AMSERV'S INDEPENDENT PUBLIC ACCOUNTANTS.
 
                                 LEGAL MATTERS
 
    The  validity of the securities offered hereby  will be passed upon for STAR
by Parker Chapin Flattau & Klimpl, LLP,  1211 Avenue of the Americas, New  York,
New  York  10036. The  federal income  tax consequences  in connection  with the
Merger will be passed upon for AMSERV by Latham & Watkins, 701 "B" Street, Suite
2100, San Diego, California 92101-8197.
 
                                    EXPERTS
 
    The consolidated financial statements of STAR MULTI CARE SERVICES, INC.  and
subsidiaries  as of  May 31,  1994 and  1995 and  for each  of the  years in the
two-year  period   ended   May  31,   1995   included  in   this   Joint   Proxy
Statement/Prospectus   have  been  audited  by  Holtz  Rubenstein  &  Co.,  LLP,
independent certified public accountants, as set forth in their report appearing
elsewhere herein, and are included in  reliance upon such report given upon  the
authority of said firm as experts in accounting and auditing.
 
    The   consolidated  financial  statements  of  AMSERV  HEALTHCARE  INC.  and
subsidiaries as of June  30, 1994 and for  each of the two  years in the  period
ended  June 30, 1994 included in this Joint Proxy Statement/Prospectus have been
audited by Deloitte &  Touche LLP, independent auditors,  as set forth in  their
report  appearing elsewhere herein, and are included in reliance upon the report
of such firm given upon their authority as experts in accounting and auditing.
 
    The consolidated financial statements of AMSERV HEALTHCARE INC. at June  24,
1995   and   for   the  year   then   ended   included  in   this   Joint  Proxy
Statement/Prospectus have  been  audited  by  Ernst  &  Young  LLP,  independent
auditors,  as  set forth  in their  report appearing  elsewhere herein,  and are
included in reliance upon such report given  upon the authority of such firm  as
experts in accounting and auditing.
 
    The  financial statements of  Long Island Registry, Inc.  as of December 31,
1994  and   for   the  year   then   ended   included  in   this   Joint   Proxy
Statement/Prospectus   have  been  audited  by   Paul  Josephson  C.P.A.,  P.C.,
independent auditor, as set forth in  his report appearing elsewhere herein  and
are  included in reliance upon his report  given upon his authority as an expert
in auditing and accounting.
 
                        PROPOSALS BY AMSERV SHAREHOLDERS
 
    AMSERV shareholder proposals  intended to  be presented at  the next  Annual
Meeting  of Shareholders of AMSERV (which will be held only if the Merger is not
consummated) must  be  received by  AMSERV  a reasonable  time  before  AMSERV's
solicitation is made for such meeting.
 
                                 OTHER BUSINESS
 
    The  Board of Directors of AMSERV is not aware of any other matter which may
be presented for action at the AMSERV Meeting. Should any other matter requiring
a vote of the shareholders arise, the enclosed proxy card gives authority to the
persons listed on the card to vote  at their discretion in the best interest  of
AMSERV.
 
                                       89
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
    The  following unaudited  pro forma condensed  combined financial statements
give effect to the Merger of Star Multi Care Services, Inc. ("STAR") and  AMSERV
HEALTHCARE  INC. ("AMSERV") under the pooling of interests method of accounting.
These pro forma  financial statements  are presented  for illustrative  purposes
only,  and therefore are not necessarily indicative of the operating results and
financial position that might have been  achieved had the Merger occurred as  of
an  earlier date, nor  are they necessarily indicative  of operating results and
financial position which may occur in the future.
 
    A pro forma condensed combined balance sheet is provided as of February  29,
1996,  giving effect  to the Merger  as though  it had been  consummated on that
date. The pro forma condensed  combined balance sheet combines the  consolidated
balance  sheet of STAR as of  February 29, 1996 with that  of AMSERV as of March
23, 1996.  Pro  forma  condensed  combined statements  of  income  are  provided
combining  STAR for the nine month periods  ended February 29, 1996 and February
28, 1995, and the years  ended May 31, 1995 and  1994, with AMSERV for the  nine
month  periods ended March 23, 1996 and March  31, 1995, and for the years ended
June 24, 1995 and June  30, 1994, giving effect to  the Merger as though it  had
occurred at the beginning of the earliest period presented.
 
    The  historical condensed statements of  income for annual periods presented
are derived from  the separate historical  consolidated financial statements  of
STAR  and AMSERV, and should be read in conjunction with the companies' separate
financial  statements  included  elsewhere  herein.  The  historical   financial
statements as of or for the nine months ended February 29, 1996 and February 28,
1995  are derived from the  historical interim consolidated financial statements
of STAR  and  AMSERV, included  elsewhere  herein,  and have  been  prepared  in
accordance  with generally accepted accounting  principles applicable to interim
financial information  and, in  the opinion  of STAR's  and AMSERV's  respective
managements,  include  all  adjustments  necessary for  a  fair  presentation of
financial information for such interim periods.
 
                                       90
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                   PRO FORMA CONDENSED COMBINED BALANCE SHEET
 
                               FEBRUARY 29, 1996
                                  (UNAUDITED)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  HISTORICAL
                                                       --------------------------------
                                                             STAR            AMSERV                 PRO FORMA
                                                          MULTI CARE       HEALTHCARE    -------------------------------
                                                        SERVICES, INC.        INC.         ADJUSTMENTS       COMBINED
                                                       ----------------  --------------  ----------------  -------------
<S>                                                    <C>               <C>             <C>               <C>
CURRENT ASSETS:
  Cash and cash equivalents..........................   $       59,696    $  2,305,423   $      --         $   2,365,119
  Short-term investments, net........................         --               103,500          --               103,500
  Accounts receivable, net...........................        8,034,772       1,320,969          --             9,355,741
  Prepaid expenses and other current assets..........          313,490         390,827          --               704,317
  Deferred income taxes..............................          160,000         --               --               160,000
                                                       ----------------  --------------  ----------------  -------------
    Total current assets.............................        8,567,958       4,120,719          --            12,688,677
PROPERTY AND EQUIPMENT, net..........................          298,024         429,597          --               727,621
NOTES RECEIVABLE FROM OFFICER........................          102,490         --               --               102,490
INTANGIBLE ASSETS, net...............................        3,141,614       2,004,881          --             5,146,495
OTHER ASSETS.........................................          157,823         277,863          --               435,686
                                                       ----------------  --------------  ----------------  -------------
    Total assets.....................................   $   12,267,909    $  6,833,060   $      --         $  19,100,969
                                                       ----------------  --------------  ----------------  -------------
                                                       ----------------  --------------  ----------------  -------------
                                           LIABILITIES, REDEEMABLE PREFERRED
                                             STOCK AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
  Accrued payroll and related expenses...............   $    1,000,461    $    780,407   $      --         $   1,780,868
  Accounts payable and other accrued expenses........          678,890          35,139          --               714,029
  Net liability of discontinued operations...........         --               115,422          --               115,422
  Income taxes payable...............................          199,198         --               --               199,198
  Current maturities of long-term debt...............          125,000         --               --               125,000
  Other current liabilities..........................         --               258,296          --               258,296
                                                       ----------------  --------------  ----------------  -------------
    Total current liabilities........................        2,003,549       1,189,264          --             3,192,813
                                                       ----------------  --------------  ----------------  -------------
LONG-TERM LIABILITIES:
  Revolving credit line..............................        3,250,000         --               --             3,250,000
  Long-term debt.....................................          281,250         --               --               281,250
  Other long-term liabilities........................         --                33,406          --                33,406
                                                       ----------------  --------------  ----------------  -------------
    Total long-term liabilities......................        3,531,250          33,406          --             3,564,656
                                                       ----------------  --------------  ----------------  -------------
REDEEMABLE PREFERRED STOCK:
  Class A Redeemable Preferred Stock.................         --               --               --              --
  Class B Redeemable Preferred Stock.................         --                 1,951          --                 1,951
  Additional paid-in capital.........................         --               510,202          --               510,202
                                                       ----------------  --------------  ----------------  -------------
    Total redeemable preferred stock.................         --               512,153          --               512,153
                                                       ----------------  --------------  ----------------  -------------
SHAREHOLDERS' EQUITY:
  Preferred Stock, $1.00 par value...................         --               --               --              --
  Common Stock, $.001 par value......................            2,454          34,482       (33,130)2(i)          3,806
  Additional paid-in capital.........................        6,406,345       7,064,031      (262,923)2(ii)    13,207,453
  Note receivable from officer.......................         --              (397,782)         --              (397,782)
  Unrealized gain on short-term investments..........         --                 5,838          --                 5,838
  Retained earnings..................................          603,233      (1,312,279)         --              (709,046)
  Treasury stock at cost.............................         (278,922)       (296,053)    296,053 2(ii)        (278,922)
                                                       ----------------  --------------  ----------------  -------------
    Total shareholders' equity.......................        6,733,110       5,098,237          --            11,831,347
                                                       ----------------  --------------  ----------------  -------------
                                                        $   12,267,909    $  6,833,060          --         $  19,100,969
                                                       ----------------  --------------  ----------------  -------------
                                                       ----------------  --------------  ----------------  -------------
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       91
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                      NINE MONTHS ENDED FEBRUARY 29, 1996
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                HISTORICAL
                                                     --------------------------------
                                                           STAR            AMSERV              PRO FORMA
                                                        MULTI CARE       HEALTHCARE    --------------------------
                                                      SERVICES, INC.        INC.       ADJUSTMENTS    COMBINED
                                                     ----------------  --------------  -----------  -------------
<S>                                                  <C>               <C>             <C>          <C>
REVENUES, net......................................   $   26,468,086    $  9,117,616    $  --       $  35,585,702
OPERATING EXPENSES.................................       24,995,000       8,671,560       --          33,666,560
                                                     ----------------  --------------  -----------  -------------
INCOME FROM OPERATIONS.............................        1,473,086         446,056       --           1,919,142
OTHER INCOME (EXPENSE):
  Interest expense, net............................         (203,060)        120,122       --             (82,938)
                                                     ----------------  --------------  -----------  -------------
INCOME FROM CONTINUING OPERATIONS BEFORE PROVISION
 FOR INCOME TAXES..................................        1,270,026         566,178       --           1,836,204
PROVISION FOR INCOME TAXES.........................          520,000         224,000       --             744,000
                                                     ----------------  --------------  -----------  -------------
INCOME FROM CONTINUING OPERATIONS..................   $      750,026    $    342,178    $  --       $   1,092,204
                                                     ----------------  --------------  -----------  -------------
                                                     ----------------  --------------  -----------  -------------
EARNINGS PER COMMON SHARE, primary:
  Income from continuing operations................   $          .28    $        .10    $  --       $         .27
                                                     ----------------  --------------  -----------  -------------
                                                     ----------------  --------------  -----------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING.......................................        2,704,187       3,269,084       --           4,041,242
                                                     ----------------  --------------  -----------  -------------
                                                     ----------------  --------------  -----------  -------------
EARNINGS PER COMMON SHARE, full dilution:
  Income from continuing operations................   $          .28    $        .10    $  --       $         .27
                                                     ----------------  --------------  -----------  -------------
                                                     ----------------  --------------  -----------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING.......................................        2,704,187       3,269,084       --           4,041,242
                                                     ----------------  --------------  -----------  -------------
                                                     ----------------  --------------  -----------  -------------
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       92
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                      NINE MONTHS ENDED FEBRUARY 28, 1995
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                               HISTORICAL
                                                    --------------------------------
                                                          STAR            AMSERV               PRO FORMA
                                                       MULTI CARE       HEALTHCARE    ---------------------------
                                                     SERVICES, INC.        INC.       ADJUSTMENTS     COMBINED
                                                    ----------------  --------------  ------------  -------------
<S>                                                 <C>               <C>             <C>           <C>
REVENUES, net.....................................   $   19,684,818    $  8,402,485   $    --       $  28,087,303
OPERATING EXPENSES................................       18,820,910       8,114,603        --          26,935,513
                                                    ----------------  --------------  ------------  -------------
INCOME FROM OPERATIONS............................          863,908         287,882        --           1,151,790
OTHER INCOME (EXPENSE):
  Interest expense, net...........................          (43,826)         15,873        --             (27,953)
                                                    ----------------  --------------  ------------  -------------
INCOME FROM CONTINUING OPERATIONS BEFORE PROVISION
 FOR INCOME TAXES.................................          820,082         303,755        --           1,123,837
PROVISION FOR INCOME TAXES........................          353,000          79,000        --             432,000
                                                    ----------------  --------------  ------------  -------------
INCOME FROM CONTINUING OPERATIONS.................   $      467,082    $    224,755   $    --       $     691,837
                                                    ----------------  --------------  ------------  -------------
                                                    ----------------  --------------  ------------  -------------
EARNINGS PER COMMON SHARE,
  primary:
    Income from continuing operations.............   $          .20    $        .07        --       $         .19
                                                    ----------------  --------------  ------------  -------------
                                                    ----------------  --------------  ------------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING......................................        2,282,032       3,132,660        --           3,563,290
                                                    ----------------  --------------  ------------  -------------
                                                    ----------------  --------------  ------------  -------------
EARNINGS PER COMMON SHARE,
  full dilution:
    Income from continuing operations.............   $          .20    $        .07   $    --       $         .19
                                                    ----------------  --------------  ------------  -------------
                                                    ----------------  --------------  ------------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING......................................        2,282,032       3,132,660        --           3,363,290
                                                    ----------------  --------------  ------------  -------------
                                                    ----------------  --------------  ------------  -------------
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       93
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                            YEAR ENDED MAY 31, 1995
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                    HISTORICAL                                         HISTORICAL
                        ----------------------------------                           --------------
                              STAR          LONG ISLAND            PRO FORMA             AMSERV             PRO FORMA
                           MULTI CARE         NURSING       -----------------------    HEALTHCARE    -----------------------
                         SERVICES, INC.    REGISTRY, INC.   ADJUSTMENTS   COMBINED        INC.       ADJUSTMENTS   COMBINED
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
<S>                     <C>               <C>               <C>          <C>         <C>             <C>          <C>
REVENUES, net.........    $ 27,088,426       $6,070,639      $  --       $33,159,065  $ 11,341,609    $  --       $44,500,674
OPERATING EXPENSES....      25,849,956        5,903,739       (232,500)  31,521,195     11,329,422       --       42,850,617
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
INCOME FROM
 OPERATIONS...........       1,238,470          166,900        232,500    1,637,870         12,187       --        1,650,057
OTHER INCOME
 (EXPENSE):
  Interest expense,
   net................         (62,782)        (100,218)      (120,000)    (283,000)        42,199       --         (240,801)
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
INCOME FROM CONTINUING
 OPERATIONS BEFORE
 PROVISION FOR INCOME
 TAXES................       1,175,688           66,682        112,500    1,354,870         54,386       --        1,409,256
PROVISION FOR INCOME
 TAXES................         470,000           --             80,000      550,000          2,038       --          552,038
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
INCOME FROM CONTINUING
 OPERATIONS...........    $    705,688       $   66,682      $  32,500   $  804,870   $     52,348    $  --       $  857,218
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
EARNINGS PER COMMON
 SHARE,
  primary:
    Income from
     continuing
     operations.......    $        .28       $   --          $  --       $      .32   $        .02    $  --       $      .23
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
WEIGHTED AVERAGE
 NUMBER OF SHARES OF
 COMMON STOCK
 OUTSTANDING..........       2,500,311           --             --        2,500,311      3,111,527       --        3,772,925
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
EARNINGS PER COMMON
 SHARE,
  full dilution:
    Income from
     continuing
     operations.......    $        .28       $   --          $  --       $      .32   $        .02    $  --       $      .23
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
WEIGHTED AVERAGE
 NUMBER OF SHARES OF
 COMMON STOCK
 OUTSTANDING..........       2,525,966           --             --        2,525,966      3,111,527       --        3,798,580
                        ----------------  ----------------  -----------  ----------  --------------  -----------  ----------
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       94
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                            YEAR ENDED MAY 31, 1994
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                               HISTORICAL
                                                    --------------------------------
                                                          STAR            AMSERV               PRO FORMA
                                                       MULTI CARE       HEALTHCARE    ---------------------------
                                                     SERVICES, INC.        INC.       ADJUSTMENTS     COMBINED
                                                    ----------------  --------------  ------------  -------------
<S>                                                 <C>               <C>             <C>           <C>
REVENUES, net.....................................   $   22,168,356    $  7,525,822   $    --       $  29,694,178
OPERATING EXPENSES................................       21,423,429       7,694,611        --          29,118,040
                                                    ----------------  --------------  ------------  -------------
INCOME (LOSS) FROM OPERATIONS.....................          744,927        (168,789)       --             576,138
OTHER INCOME (EXPENSE):
  Interest expense, net...........................          (13,047)         80,287        --              67,240
                                                    ----------------  --------------  ------------  -------------
INCOME FROM CONTINUING OPERATIONS BEFORE PROVISION
 FOR INCOME TAXES.................................          731,880         (88,502)       --             643,378
PROVISION (BENEFIT) FOR INCOME TAXES..............          311,000         (25,168)       --             285,832
                                                    ----------------  --------------  ------------  -------------
INCOME (LOSS) FROM CONTINUING OPERATIONS..........   $      420,880    $    (63,334)  $    --       $     357,546
                                                    ----------------  --------------  ------------  -------------
EARNINGS (LOSS) PER COMMON SHARE, primary:
  Income (loss) from continuing operations........   $          .18    $       (.02)  $    --       $         .10
                                                    ----------------  --------------  ------------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING......................................        2,325,065       2,944,526        --           3,529,376
                                                    ----------------  --------------  ------------  -------------
EARNINGS (LOSS) PER COMMON SHARE, full dilution:
  Income (loss) from continuing operations........   $          .18    $       (.02)  $    --       $         .10
                                                    ----------------  --------------  ------------  -------------
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK
 OUTSTANDING......................................        2,325,065       2,944,526        --           3,563,290
                                                    ----------------  --------------  ------------  -------------
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       95
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
      NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
1.  BASIS OF PRESENTATION:
    The   unaudited  pro  forma  condensed  combined  financial  statements  are
presented for illustrative purposes  only, giving effect to  the Merger of  STAR
MULTI  CARE SERVICES,  INC. ("STAR")  and AMSERV  HEALTHCARE INC.  ("AMSERV") as
accounted for by the pooling of  interests method. The 1995 acquisition of  Long
Island  Nursing Registry, Inc. ("LINR")  was recorded using purchase accounting,
and accordingly, STAR's operations for the year ended May 31, 1995 reflect  only
the  operations of LINR  from the acquisition  date (May 19,  1995) to year end.
Accordingly, LINR's operations from June 1, 1994 through the date of acquisition
have been  added in  the  accompanying unaudited  pro forma  condensed  combined
statement  of operations for the year  ended 1995. In accordance with Commission
reporting rules, the pro forma combined statements of income, and the historical
statements from  which they  are derived,  present only  income from  continuing
operations and, therefore, do not include discontinued operations, extraordinary
items, and the cumulative effects of accounting changes.
 
    Because  the transaction  has not  been completed  and transition  plans are
currently being  developed, transaction  costs of  the Merger  and  nonrecurring
costs and expenses expected to be incurred in connection with the integration of
the  companies' business and operations can only  be estimated at this time. The
pro forma condensed combined statements of income exclude transaction costs  and
expenses  of the  Merger, currently  estimated to  be $2,700,000,  consisting of
Eugene J. Mora's termination payment ($1,700,000); attorney and accounting  fees
($440,000);  other professional fees ($325,000);  and other expenses ($235,000).
Transaction costs will be charged to  combined operations in the fiscal  quarter
in which the transaction is completed.
 
2.  PRO FORMA ADJUSTMENTS:
 
    SHAREHOLDERS' EQUITY
 
    Shareholders'  equity as of  February 29, 1996 has  been adjusted to reflect
the following:
 
        (i) Common Stock,  $.001 par  value, has  been adjusted  to reflect  the
    assumed  issuance of  approximately 1,352,000  shares of  STAR Common Stock,
    $.001 par value,  in exchange for  3,305,000 shares of  AMSERV Common  Stock
    issued  and outstanding as of February 29, 1996, utilizing the exchange rate
    of .4090 shares of STAR  for each share of AMSERV.  The number of shares  of
    STAR  Common Stock to be issued at  consummation of the Merger will be based
    upon the actual number of shares of AMSERV Common Stock outstanding at  that
    time.
 
        (ii) Additional paid-in capital and treasury stock of AMSERV is adjusted
    for  the effect  of the  aforementioned issuance  of approximately 1,352,000
    shares of  STAR Common  Stock  having a  par value  of  $.001 per  share  in
    exchange for AMSERV Common Stock.
 
    PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME
 
    a.  EARNINGS PER COMMON SHARE
 
    Pro  forma weighted average number of common shares outstanding for the nine
month periods ended February 29,  1996 and February 28,  1995 and for the  years
ended  May  31,  1995 and  1994  are  based upon  STAR's  and  AMSERV's combined
historical weighted  average shares,  after  adjustment of  AMSERV's  historical
number  of shares by the Exchange Ratio  and excluding any AMSERV shares held in
treasury.
 
                                       96
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
                                      AND
                             AMSERV HEALTHCARE INC.
 
NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (CONTINUED)
 
2.  PRO FORMA ADJUSTMENTS: (CONTINUED)
    b.  ACQUISITION OF LONG ISLAND NURSING REGISTRY, INC.
 
    The following adjustments have been made  to the 1995 combined statement  of
income  to  give pro  forma effect  to  the acquisition  of Long  Island Nursing
Registry, Inc.
 
    - To record  amortization  cost in  excess  of LINR's  net  assets  acquired
      ($100,000)
 
    - To  eliminate  the portion  of general  and administrative  expenses which
      exceeds STAR's estimate of  recurring general and administrative  expenses
      of the post acquisition company ($332,500)
 
    - To record interest expense on funds borrowed to purchase LINR's net assets
      ($120,000)
 
    - To recognize the income tax effect of pro forma adjustments related to the
      acquisition of LINR ($80,000)
 
                                       97
<PAGE>
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                                         PAGE
                                                                                                     -------------
<S>                                                                                                  <C>
STAR's Independent Auditors' Report................................................................            F-2
STAR's Consolidated Balance Sheets as of May 31, 1995, 1994, and February 29, 1996 (unaudited).....            F-3
STAR's Consolidated Statements of Income for the years ended May 31, 1995 and 1994, and for the
 nine months ended February 29, 1996 and February 28, 1995 (unaudited).............................            F-4
STAR's Consolidated Statements of Shareholders' Equity for the years ended May 31, 1995 and 1994,
 and for the nine months ended February 29, 1996 (unaudited).......................................            F-5
STAR's Consolidated Statements of Cash Flows for the years ended May 31, 1995 and 1994, and the
 nine months ended February 29, 1996 and February 28, 1995 (unaudited).............................            F-6
STAR's Notes to Consolidated Financial Statements..................................................     F-7 - F-15
AMSERV's Independent Auditors' Report..............................................................           F-16
AMSERV's Independent Auditors' Report..............................................................           F-17
AMSERV's Consolidated Balance Sheets as of June 24, 1995 and June 30, 1994.........................           F-18
AMSERV's Consolidated Statements of Operations for years ended June 24, 1995 and June 30, 1994 and
 1993..............................................................................................           F-19
AMSERV's Consolidated Statements of Shareholders' Equity for the years ended June 24, 1995 and June
 30, 1994 and 1993.................................................................................           F-20
AMSERV's Consolidated Statements of Cash Flows for the years ended June 24, 1995 and June 30, 1994
 and 1993..........................................................................................           F-21
AMSERV's Notes to Consolidated Financial Statements................................................    F-22 - F-29
AMSERV's Condensed Consolidated Balance Sheet as of March 23, 1996 -- unaudited....................           F-30
AMSERV's Condensed Consolidated Statements of Operations for the nine months ended March 23, 1996
 and March 31, 1995 -- unaudited...................................................................           F-31
AMSERV's Condensed Consolidated Statement of Cash Flows for the nine months ended March 23, 1996
 and March 31, 1995 -- unaudited...................................................................           F-32
AMSERV's Notes to Unaudited Condensed Consolidated Financial Statements............................    F-33 - F-34
LINR's Independent Auditors' Report................................................................           F-35
LINR's Balance Sheet as of December 31, 1994.......................................................           F-36
LINR's Statement of Income and Accumulated Deficit for the year ended December 31, 1994............           F-37
LINR's Statement of Cash Flows for the year ended December 31, 1994................................           F-38
LINR's Notes to Financial Statements...............................................................    F-39 - F-40
LINR's Independent Auditors' Report on Supplemental Information....................................           F-41
LINR's Schedule of Operating Expenses for the year ended December 31, 1994.........................           F-42
LINR's Balance Sheet as of February 28, 1995 (unaudited)...........................................           F-43
LINR's Statement of Income and Accumulated Deficit for the nine months ended February 28, 1995
 (unaudited).......................................................................................           F-44
LINR's Statement of Cash Flows for the nine months ended February 28, 1995 (unaudited).............           F-45
LINR's Notes to Financial Statements...............................................................      F-46 - 47
</TABLE>
 
                                      F-1
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
Board of Directors and Shareholders
Star Multi Care Services, Inc.
 
    We  have audited the accompanying consolidated  balance sheets of Star Multi
Care Services, Inc. as  of May 31,  1995 and 1994  and the related  consolidated
statements  of income, shareholders'  equity, and cash flows  for the years then
ended. These  financial  statements  are the  responsibility  of  the  Company's
management.  Our  responsibility is  to express  an  opinion on  these financial
statements based on our audits.
 
    We conducted  our  audits in  accordance  with generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our  opinion, the  consolidated financial  statements referred  to  above
present fairly, in all material respects, the consolidated financial position of
Star  Multi Care Services, Inc.  at May 31, 1995  and 1994, and the consolidated
results of its operations and cash flows for the years then ended, in conformity
with generally accepted accounting principles.
 
                                             /s/ HOLTZ RUBENSTEIN & CO., LLP
                                               Holtz Rubenstein & Co., LLP
 
July 19, 1995 (except for Note 4, as to
 which the date is August 16, 1995)
Melville, New York
 
                                      F-2
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
                          CONSOLIDATED BALANCE SHEETS
 
                                ASSETS (NOTE 4)
 
<TABLE>
<CAPTION>
                                                                                      MAY 31,
                                                                            ---------------------------  FEBRUARY 29,
                                                                                1995           1994          1996
                                                                            -------------  ------------  -------------
<S>                                                                         <C>            <C>           <C>
                                                                                                          (UNAUDITED)
Current assets:
  Cash and cash equivalents...............................................  $     270,344  $    425,015  $      59,696
  Accounts receivable, less allowance for doubtful accounts of $390,000,
   $363,000 and $450,000 at May 31, 1995 and 1994 and February 29, 1996,
   respectively (Note 8)..................................................      5,742,176     4,589,439      8,034,772
  Prepaid expenses and other..............................................        159,166       208,923        313,490
  Deferred income taxes (Note 12).........................................        160,000       142,000        160,000
                                                                            -------------  ------------  -------------
    Total current assets..................................................      6,331,686     5,365,377      8,567,958
Property and equipment, net of accumulated depreciation and amortization
 of $323,827, $213,640 and $384,214 at May 31, 1995 and 1994 and February
 29, 1996, respectively...................................................        260,333       191,914        298,024
Notes receivable from officer (Note 2)....................................        109,717       125,223        102,490
Intangible assets, net of accumulated amortization (Notes 3 and 7)........      3,345,650     1,910,885      3,141,614
Deposits..................................................................         66,345        44,682        157,823
                                                                            -------------  ------------  -------------
                                                                            $  10,113,731  $  7,638,081  $  12,267,909
                                                                            -------------  ------------  -------------
                                                                            -------------  ------------  -------------
 
                                         LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Revolving credit line (Note 4)..........................................  $    --        $    950,000  $    --
  Accrued payroll and related expenses....................................        893,589       634,426      1,000,461
  Accounts payable and other accrued expenses.............................        705,196       629,527        678,890
  Income taxes payable (Note 12)..........................................        300,440       195,537        199,198
  Current maturities of long-term debt (Note 5)...........................        125,000       --             125,000
                                                                            -------------  ------------  -------------
    Total current liabilities.............................................      2,024,225     2,409,490      2,003,549
                                                                            -------------  ------------  -------------
Revolving Credit Line (Note 4)............................................      1,750,000       --           3,250,000
                                                                            -------------  ------------  -------------
Long-Term Debt (Note 5)...................................................        375,000       --             281,250
                                                                            -------------  ------------  -------------
Commitments and Contingencies (Notes 9 and 11)
Shareholders' equity (Notes 6, 9, and 10):
  Preferred stock, $1.00 par value per share, 5,000,000 shares authorized
   in 1994................................................................       --             --            --
  Common stock, $.001 par value per share, 10,000,000 shares authorized;
   2,314,847, 2,167,500 and 2,453,775 shares issued, respectively.........          2,315         2,168          2,454
  Additional paid-in capital..............................................      5,359,108     4,841,790      6,406,345
  Retained earnings.......................................................        882,005       657,618        603,233
                                                                            -------------  ------------  -------------
                                                                                6,243,428     5,501,576      7,012,032
Less treasury stock -- 137,500, 135,000 and 137,500 common shares,
 respectively.............................................................        278,922       272,985        278,922
                                                                            -------------  ------------  -------------
    Total shareholders' equity............................................      5,964,506     5,228,591      6,733,110
                                                                            -------------  ------------  -------------
                                                                            $  10,113,731  $  7,638,081  $  12,267,909
                                                                            -------------  ------------  -------------
                                                                            -------------  ------------  -------------
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-3
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
                       CONSOLIDATED STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                                                    YEARS ENDED
                                                                      MAY 31,                  NINE MONTHS ENDED
                                                            ----------------------------  ----------------------------
                                                                1995           1994       FEBRUARY 29,   FEBRUARY 28,
                                                            -------------  -------------      1996           1995
                                                                                          -------------  -------------
                                                                                           (UNAUDITED)    (UNAUDITED)
<S>                                                         <C>            <C>            <C>            <C>
Net revenue (Note 8)......................................  $  27,088,426  $  22,168,356  $  26,468,086  $  19,684,818
                                                            -------------  -------------  -------------  -------------
Operating costs and expenses (Notes 2 and 11):
  Costs of revenue........................................     17,582,371     14,351,131     17,253,507     12,807,183
  Selling, general and administrative (Note 2)............      8,267,585      7,072,298      7,741,493      6,013,727
                                                            -------------  -------------  -------------  -------------
                                                               25,849,956     21,423,429     24,995,000     18,820,910
                                                            -------------  -------------  -------------  -------------
Income from operations....................................      1,238,470        744,927      1,473,086        863,908
Interest income...........................................         33,907         24,412         13,608         24,660
Interest expense..........................................        (96,689)       (37,459)      (216,668)       (68,486)
                                                            -------------  -------------  -------------  -------------
Income before provision for income taxes and cumulative
 effect of change in accounting method....................      1,175,688        731,880      1,270,026        820,082
                                                            -------------  -------------  -------------  -------------
Provision for income taxes (Note 12)......................        470,000        311,000        520,000        353,000
                                                            -------------  -------------  -------------  -------------
Income before cumulative effect of change in accounting
 method...................................................        705,688        420,880        750,026        467,082
Cumulative effect of change in accounting method (Note
 12)......................................................       --               65,000       --             --
                                                            -------------  -------------  -------------  -------------
Net income................................................  $     705,688  $     485,880  $     750,026  $     467,082
                                                            -------------  -------------  -------------  -------------
                                                            -------------  -------------  -------------  -------------
Net income per common share:
  Primary:
    Income before cumulative effect of accounting
     change...............................................  $         .28  $         .18  $         .28  $         .20
Cumulative effect of accounting change....................       --                  .03       --             --
                                                            -------------  -------------  -------------  -------------
Net income................................................  $         .28  $         .21  $         .28  $         .20
                                                            -------------  -------------  -------------  -------------
                                                            -------------  -------------  -------------  -------------
Assuming full dilution:
  Income before cumulative effect of accounting change....  $         .28  $         .18  $         .28  $         .20
Cumulative effect of accounting change....................       --                  .03       --             --
                                                            -------------  -------------  -------------  -------------
Net income................................................  $         .28  $         .21  $         .28  $         .20
                                                            -------------  -------------  -------------  -------------
                                                            -------------  -------------  -------------  -------------
Weighted average number of shares outstanding:
  Primary.................................................      2,500,311      2,325,065      2,704,187      2,282,032
                                                            -------------  -------------  -------------  -------------
                                                            -------------  -------------  -------------  -------------
  Assuming full dilution..................................      2,525,966      2,325,065      2,704,187      2,282,032
                                                            -------------  -------------  -------------  -------------
                                                            -------------  -------------  -------------  -------------
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-4
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
 
                          TWO YEARS ENDED MAY 31, 1995
              AND NINE MONTHS ENDED FEBRUARY 29, 1996 (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                 COMMON STOCK        ADDITIONAL                                   TOTAL
                                             ---------------------    PAID-IN      TREASURY      RETAINED     SHAREHOLDERS'
                                               SHARES     AMOUNT      CAPITAL        STOCK       EARNINGS        EQUITY
                                             ----------  ---------  ------------  -----------  -------------  -------------
<S>                                          <C>         <C>        <C>           <C>          <C>            <C>
Balance, June 1, 1993......................   1,445,000  $   1,445  $  4,842,513  $  (105,000) $     171,738   $ 4,910,696
Purchase of 90,000 shares of treasury
 stock.....................................      --         --           --          (167,985)      --            (167,985)
Three-for-two stock split..................     722,500        723          (723)     --            --             --
Net income.................................      --         --           --           --             485,880       485,880
                                             ----------  ---------  ------------  -----------  -------------  -------------
Balance, May 31, 1994......................   2,167,500      2,168     4,841,790     (272,985)       657,618     5,228,591
Purchase of 2,500 shares of treasury
 stock.....................................      --         --           --            (5,937)      --              (5,937)
Exercise of stock options..................      19,000         19        36,145      --            --              36,164
6% stock dividend..........................     128,347        128       481,173      --            (481,301)      --
Net income.................................      --         --           --           --             705,688       705,688
                                             ----------  ---------  ------------  -----------  -------------  -------------
Balance, May 31, 1995......................   2,314,847      2,315     5,359,108     (278,922)       882,005     5,964,506
6% stock dividend..........................     130,641        131     1,028,667      --          (1,028,798)      --
Exercise of stock options..................       8,287          8        18,570      --            --              18,578
Net income.................................      --         --           --           --             750,026       750,026
                                             ----------  ---------  ------------  -----------  -------------  -------------
Balance, February 29, 1996 (unaudited).....   2,453,775  $   2,454  $  6,406,345  $  (278,922) $     603,233   $ 6,733,110
                                             ----------  ---------  ------------  -----------  -------------  -------------
                                             ----------  ---------  ------------  -----------  -------------  -------------
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-5
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                      YEARS ENDED
                                                                        MAY 31,                  NINE MONTHS ENDED
                                                              ----------------------------  ----------------------------
                                                                  1995           1994       FEBRUARY 29,   FEBRUARY 28,
                                                              -------------  -------------      1996           1995
                                                                                            -------------  -------------
                                                                                             (UNAUDITED)    (UNAUDITED)
<S>                                                           <C>            <C>            <C>            <C>
Cash flow from operating activities
  Net income................................................  $     705,688  $     485,880  $     750,026  $     467,082
                                                              -------------  -------------  -------------  -------------
    Adjustments to reconcile net income to net cash provided
     by (used in) operating activities:
      Provision for doubtful accounts.......................        330,732        255,446        255,000        220,000
      Depreciation and amortization of property and
       equipment............................................         69,472         84,890         63,118         54,022
      Amortization of intangible assets.....................        270,834        268,767        266,296        203,386
    Loss on disposal of equipment...........................         14,606       --             --             --
    Deferred income taxes...................................        (18,000)       (76,000)      --             --
    Changes in operating assets and liabilities:
    (Increase) decrease in assets:
      Accounts receivable...................................     (1,483,469)    (1,846,351)    (2,547,596)    (1,170,130)
      Prepaid expenses and other current assets.............         49,757       (121,721)      (154,324)       (84,862)
      Deposits..............................................        (21,663)        17,625        (91,478)        (9,051)
    Increase (decrease) in liabilities:
      Accrued payroll and related expenses..................        259,163        187,281        106,872         19,620
      Accounts payable and other accrued expenses...........         75,669         33,257        (26,306)      (106,852)
      Income taxes payable..................................        104,903        140,653       (101,242)        52,411
                                                              -------------  -------------  -------------  -------------
        Total Adjustments...................................       (347,996)    (1,056,152)    (2,229,660)      (821,456)
        Net cash provided by (used in) operating
         activities.........................................        357,692       (570,272)    (1,479,634)      (354,374)
                                                              -------------  -------------  -------------  -------------
Cash flow from investing activities:
  Business acquisitions.....................................     (1,215,770)      (791,004)      --             --
  Purchase of property and equipment........................       (127,497)      (126,580)      (100,809)       (62,174)
  Purchase of intangibles...................................        (14,829)      --              (62,260)       (29,098)
  Repayment of advance to officer...........................         15,506          4,777          7,227          9,985
  Note receivable...........................................       --             --             --             (158,302)
                                                              -------------  -------------  -------------  -------------
        Net cash used in investing activities...............     (1,342,590)      (912,807)      (155,842)      (239,589)
                                                              -------------  -------------  -------------  -------------
Cash flow from financing activities:
  Purchase of treasury stock................................         (5,937)      (167,985)      --               (6,138)
  Net proceeds from revolving credit line...................        800,000        950,000      1,500,000        250,000
  Payment of long-term debt.................................       --             --              (93,750)      --
  Proceeds from issuance of common stock....................         36,164       --               18,578         16,249
                                                              -------------  -------------  -------------  -------------
        Net cash provided by financing activities...........        830,227        782,015      1,424,828        260,111
                                                              -------------  -------------  -------------  -------------
Net decrease in cash and cash equivalents...................       (154,671)      (701,064)      (210,648)      (333,852)
Cash and cash equivalents at beginning of year..............        425,015      1,126,079        270,344        425,015
                                                              -------------  -------------  -------------  -------------
Cash and cash equivalents at end of year....................  $     270,344  $     425,015  $      59,696  $      91,163
                                                              -------------  -------------  -------------  -------------
                                                              -------------  -------------  -------------  -------------
Supplemental disclosures:
  Income taxes paid.........................................  $     381,000  $     213,000  $     519,000  $     298,552
                                                              -------------  -------------  -------------  -------------
                                                              -------------  -------------  -------------  -------------
  Interest paid.............................................  $      86,000  $      38,000  $     204,000  $      68,486
                                                              -------------  -------------  -------------  -------------
                                                              -------------  -------------  -------------  -------------
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-6
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 1 -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    DESCRIPTION OF BUSINESS
 
    The  Company  is  principally  engaged in  providing  temporary  health care
personnel, including registered nurses, licensed practical nurses, nurses  aides
and respiratory therapists to hospitals, nursing homes, extended care facilities
and in-home patients in Florida and the New York City metropolitan area.
 
    PRINCIPLES OF CONSOLIDATION
 
    The  consolidated financial  statements include  the accounts  of Star Multi
Care Services,  Inc. and  its subsidiaries  (the "Company"),  all of  which  are
wholly-owned.  All significant intercompany transactions  and accounts have been
eliminated.
 
    REVENUE RECOGNITION AND ALLOWANCE FOR DOUBTFUL ACCOUNTS
 
    Net revenue  is  recorded  at  the  estimated  net  realizable  amount  from
patients,  third-party payors  and others  for services  rendered. A significant
portion of  the Company's  revenue  is received  from third-party  payors  (i.e.
Medicare)  and is subject  to audit and adjustment  by those payors. Retroactive
adjustments are accrued on an estimated basis in the period the related services
are rendered and adjusted in future periods as final settlements are determined.
A  provision  for  doubtful  accounts  is  made  for  revenue  estimated  to  be
uncollectible and is adjusted periodically based upon management's evaluation of
current industry conditions, historical collection experience and other relevant
factors  which, in the opinion of  management, deserve recognition in estimating
the allowance for doubtful accounts.
 
    PROPERTY AND EQUIPMENT
 
    Property and equipment are recorded at  cost. The carrying amount of  assets
and  related  accumulated depreciation  and  amortization are  removed  from the
accounts when such assets  are disposed of,  and the resulting  gain or loss  is
included  in operations.  Depreciation is  computed by  the straight-line method
over the  estimated  useful lives  of  the assets.  Leasehold  improvements  are
amortized over the shorter of the remaining life of the lease or the life of the
improvement.
 
    CASH EQUIVALENTS
 
    For  purposes  of the  consolidated statements  of  cash flows,  the Company
considers all  highly liquid  financial  instruments with  a maturity  of  three
months or less when purchased to be cash equivalents.
 
    INCOME TAXES
 
    Deferred  tax  assets and  liabilities are  determined based  on differences
between financial reporting  and tax bases  of assets and  liabilities, and  are
measured  using the enacted tax  rates and laws that will  be in effect when the
differences are  expected to  reverse. Temporary  differences and  carryforwards
giving  rise to  deferred taxes primarily  relate to the  allowance for doubtful
accounts, depreciation and subsidiary net operating loss carryforwards.
 
    NET INCOME PER SHARE
 
    Net income  per  share has  been  computed by  dividing  net income  by  the
weighted average number of common stock and common stock equivalents outstanding
during  each period. Common  stock equivalents represent  the dilutive effect of
the assumed exercise of certain outstanding stock options and warrants.
 
                                      F-7
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 1 -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    INTERIM FINANCIAL STATEMENTS
 
    The unaudited financial statements as of February 29, 1996 and for the  nine
months  ended February  29, 1996 and  February 28, 1995  reflect all adjustments
(consisting only of  normal recurring  accruals) which  are, in  the opinion  of
management,  necessary for a fair  statement of the results  for the period. The
results of operations are not necessarily indicative of the results expected for
the fiscal year.
 
NOTE 2 -- RELATED PARTY TRANSACTIONS
    Notes receivable from officer represents  amounts loaned by the Company  and
or  subsidiaries of  the Company  to the  Company's President.  These notes bear
interest at 6% and mature August 1, 1996. All interest has been paid through May
31, 1995.
 
    A director provides  accounting services  to the  Company for  which he  was
compensated  approximately  $100,000 in  each of  the years  1995 and  1994, and
approximately $75,000 in each of the nine-month periods ended February 29,  1996
and February 28, 1995.
 
NOTE 3 -- INTANGIBLE ASSETS
    Intangible assets consists of the following:
 
<TABLE>
<CAPTION>
                                                                                           FEBRUARY 29,
                                                                        MAY 31,                1996
                                                 AMORTIZATION  --------------------------  ------------
                                                    PERIOD         1995          1994
                                                 ------------  ------------  ------------  (UNAUDITED)
<S>                                              <C>           <C>           <C>           <C>
Covenants not-to-compete.......................     2 - 8      $    600,000  $    450,000  $    575,000
Customer contracts.............................    11 - 15        2,225,000     1,069,000     2,225,000
Nurses lists...................................     9 - 15          703,000       453,000       703,000
Goodwill.......................................     8 - 15          646,000       611,000       556,000
Other..........................................     2 - 10          210,000        96,000       352,000
                                                               ------------  ------------  ------------
                                                                  4,384,000     2,679,000     4,411,000
Less accumulated amortization..................                   1,038,000       768,000     1,269,000
                                                               ------------  ------------  ------------
                                                               $  3,346,000  $  1,911,000  $  3,142,000
                                                               ------------  ------------  ------------
                                                               ------------  ------------  ------------
</TABLE>
 
    Net  intangible assets  increased approximately $1,705,000  and $791,000 for
the fiscal years ended 1995 and 1994, respectively, primarily as a result of the
business acquisitions described in Note 7. Intangible assets are being amortized
principally using the straight-line method over  a period of years ranging  from
2-15 years.
 
NOTE 4 -- REVOLVING CREDIT LINE
    The  Company  has a  $3.5 million  line of  credit with  a bank  which bears
interest at 1/2% above the  bank's prime lending rate (9%  at May 31, 1995)  and
expires  on October 4, 1995. The facility is renewable at the sole discretion of
the bank (see subsequent refinancing below). All loans under the line of  credit
are  collateralized by all assets of the Company. The Company can borrow against
the line to  the extent  of 80%  of eligible  accounts receivable  (90 days  and
under,  net  of  cross-aged  receivables).  At  May  31,  1995  the  Company had
$1,750,000 available under the line of credit.
 
    On August 16, 1995 the Company and a bank committed to a new credit facility
and terminated the  other facility  mentioned above. The  new facility  is a  $6
million revolving line of credit which bears interest at
 
                                      F-8
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 4 -- REVOLVING CREDIT LINE (CONTINUED)
1/4%  above the  bank's prime lending  rate and  matures on August  16, 1997, at
which time it  may be  converted into  a three-year  term loan  which will  bear
interest  at  1/2%  above  the  bank's prime  lending  rate.  The  line  will be
collateralized by all assets of the Company. The Company can borrow against  the
line  to the extent of 80% of  eligible accounts receivable (120 days and under,
net of contractual allowances).
 
    In accordance  with  FASB Statement  No.  6, "Classification  of  short-term
obligations  expected to be refinanced", the total amount outstanding at May 31,
1995 of $1,750,000 has been classified as non-current.
 
NOTE 5 -- LONG-TERM DEBT
    Long-term debt consists of a note payable in monthly installments of $10,417
through May 1999. Interest is  payable monthly at 8.5%.  The note was issued  in
connection with the acquisition discussed in Note 7.
 
    Long-term debt matures as follows:
 
<TABLE>
<CAPTION>
                         YEARS ENDING
                           MAY 31,
                        -------------
<S>                                                             <C>
  1996........................................................  $  125,000
  1997........................................................     125,000
  1998........................................................     125,000
  1999........................................................     125,000
                                                                ----------
                                                                $  500,000
                                                                ----------
                                                                ----------
</TABLE>
 
NOTE 6 -- SHAREHOLDERS' EQUITY
 
    WARRANTS
 
    Pursuant  to the Company's initial public  offering in May 1991, the Company
issued to the underwriter warrants to  purchase 112,922 shares of the  Company's
common  stock.  The warrants,  which  contain certain  anti-dilution provisions,
expire in May 1996 and have an exercise price of $4.98 per share.
 
    PREFERRED STOCK
 
    On November 23, 1993, shareholders voted to amend the Company's  Certificate
of  Incorporation to  create five million  shares of preferred  stock, $1.00 par
value, which the Board of Directors has authority to issue from time to time  in
series.  The  Board of  Directors  also has  the  authority to  fix,  before the
issuance  of  each  series,  the  number  of  shares  in  each  series  and  the
designation,  preferences, rights  and limitations of  each series.  To date, no
shares of preferred stock have been issued.
 
    STOCK DIVIDEND
 
    On April 12, 1994, the Company's Board of Directors approved a three-for-two
stock split of the Company's  common stock in the form  of a 50% stock  dividend
for  shareholders of record as  of April 29, 1994. A  total of 722,500 shares of
common stock  were  issued  in  connection with  the  split.  Common  stock  and
additional  paid-in  capital  have  been  adjusted  for  the  par  value  of the
additional shares issued.  All share  amounts and  per share  amounts have  been
restated to retroactively reflect the stock split.
 
                                      F-9
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 6 -- SHAREHOLDERS' EQUITY (CONTINUED)
    On  April 24,  1995, the  Company's Board of  Directors approved  a 6% stock
dividend payable on May 30, 1995 for shareholders of record as of May 15,  1995.
A  total of 128,347  shares of common  stock were issued  in connection with the
dividend. Common stock has been adjusted for the par value of the shares issued.
Additional paid-in  capital and  retained earnings  have been  adjusted for  the
difference between the fair market value and the par value of the shares.
 
    On  December 5, 1995  the Company's Board  of Directors approved  a 6% stock
dividend payable on January 12, 1996  for shareholders of record as of  December
22,  1995. A total of  130,641 shares of common  stock were issued in connection
with the dividend.  Common stock  has been  adjusted for  the par  value of  the
shares  issued.  Additional  paid in  capital  and retained  earnings  have been
adjusted for the difference between the fair  market value and the par value  of
the shares.
 
    All  references in  the accompanying financial  statements to  the number of
common shares and per share amounts for all periods presented have been restated
to reflect the stock dividends.
 
NOTE 7 -- ACQUISITIONS
    In May 1995,  the Company  acquired certain  assets of  Long Island  Nursing
Registry,  Inc.  ("LINR") for  approximately $1,716,000,  including acquisitions
costs of approximately $100,000. The assets purchased consisted of customer  and
patient  lists of $1,156,000, nurses  lists of $250,000, covenant not-to-compete
of $150,000, furniture and office equipment of $25,000 and goodwill of $35,000.
 
    In November 1993,  the Company acquired  certain assets of  DSI Health  Care
Services,  Inc.  for  approximately  $725,000,  including  acquisition  costs of
$175,000. The  assets  purchased consisted  of  customer and  patient  lists  of
$400,000,  nurses lists of  $120,000, furniture and  office equipment of $30,000
and goodwill of $175,000.
 
    The above acquisitions have been accounted for utilizing purchase accounting
principles. Accordingly, the  results of  operations have been  included in  the
accompanying consolidated financial statements since the date of acquisition.
 
    The  following unaudited pro forma results of operations for the years ended
May 31, 1995 and May 31, 1994  assume the above acquisitions occurred as of  the
beginning  of the period  after giving effect  to certain adjustments, including
amortization of goodwill and related income  tax effects. The pro forma  results
have  been prepared for comparative purposes only and do not purport to indicate
the results of operations which would actually have occurred had the combination
been in effect on the date indicated or which may occur in the future.
 
<TABLE>
<CAPTION>
                                                                  1995           1994
                                                                UNAUDITED      UNAUDITED
                                                              -------------  -------------
<S>                                                           <C>            <C>
Net revenues................................................  $  33,159,000  $  28,363,000
Net income..................................................  $     805,000  $     575,000
Net income per common share.................................  $         .32  $         .28
</TABLE>
 
NOTE 8 -- CONCENTRATIONS OF CREDIT RISK AND MAJOR CUSTOMERS
    Financial instruments which potentially expose the Company to concentrations
of credit risk consist  principally of trade  accounts receivable and  temporary
cash investments.
 
                                      F-10
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 8 -- CONCENTRATIONS OF CREDIT RISK AND MAJOR CUSTOMERS (CONTINUED)
    The  Company provides temporary health  care personnel to hospitals, nursing
homes, extended care facilities and in-home patients in Florida, New Jersey  and
the  New York  City metropolitan  area. At  May 31,  1995, approximately  13% of
accounts receivable  was due  from Medicaid  and approximately  11% of  accounts
receivable   was  due  from  Medicare.   Credit  losses  relating  to  customers
historically have not been significant and within management's expectations.
 
    The Company places its temporary  cash investments with high credit  quality
financial institutions.
 
NOTE 9 -- CONTINGENCIES
    The  Company in the past treated certain of its nurses and certain others as
independent contractors. The Internal Revenue  Service ("IRS") and the New  York
State  Department of Labor  ("DOL") have, in certain  cases, determined that per
diem health care workers were employees, and not independent contractors, of the
firm placing them. Two of the  Company's subsidiaries have been selected for  an
employment  tax audit by DOL and another  of the Company's subsidiaries has been
selected for an employment tax audit by the IRS.
 
    In October 1994, the subsidiary subjected to the IRS audit received from the
IRS a formal  report proposing an  adjustment in taxes  of $1,222,220 for  years
1989-1993.  On October 12, 1995, that subsidiary signed a closing agreement with
the IRS providing for zero tax liability for years 1989-1995. The subsidiary has
agreed to  treat all  skilled  nurses providing  hospital staffing  services  as
employees  for federal  employment tax purposes  commencing January  1, 1996. As
skilled hospital staffing services currently represents only 2% of revenues this
change is not expected to have a significant impact on earnings.
 
    In May  1993, one  of the  Company's subsidiaries  received from  the DOL  a
formal report proposing an adjustment in the amount of $73,000. In January 1994,
the  other of the Company's  subsidiaries received from the  DOL a formal report
proposing an adjustment in the amount  of $33,000. The Company prevailed  before
the  hearing examiner in the latter of  these cases, which decision is presently
being appealed by the DOL, and the Company is vigorously defending its position.
The Company did not prevail in the  former case and is currently appealing  that
decision.  Management believes  that the  possibility of  an unfavorable outcome
which would materially affect the  financial position and results of  operations
of the Company is remote.
 
NOTE 10 -- STOCK OPTION PLANS
    The  Company has two stock option plans as adopted and as adjusted for stock
dividends. Participants may be  granted incentive stock  options to purchase  an
aggregate  of  48,000 and  738,000 shares  of  common stock,  respectively. Such
options become exercisable  at various intervals  over a period  of up to  three
years  from the date of grant. The  options expire between November 1997 and May
2005.
 
    The incentive stock options may be  granted to employees and consultants  of
the Company at a price not less than the fair market value on the date of grant.
All such options are authorized and approved by the Board of Directors, based on
recommendations of the Compensation Committee.
 
                                      F-11
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 10 -- STOCK OPTION PLANS (CONTINUED)
    Information as to options granted as of May 31, 1995 and 1994 is as follows:
 
<TABLE>
<CAPTION>
                                                             1994                       1995
                                                   -------------------------  -------------------------
                                                                 EXERCISE                   EXERCISE
                                                    SHARES        PRICE        SHARES        PRICE
                                                   ---------  --------------  ---------  --------------
<S>                                                <C>        <C>             <C>        <C>
Outstanding June 1...............................    332,142  $1.44 - $4.41     533,969  $1.44 - $4.41
  Granted........................................    231,743  $1.92 - $2.69      27,454  $3.45 - $3.59
  Cancelled or expired...........................    (29,916) $1.44 - $4.41      --            --
  Exercised......................................     --            --          (20,140) $1.58 - $2.08
                                                   ---------                  ---------
Outstanding May 31...............................    533,969  $1.44 - $4.41     541,283  $1.44 - $4.41
                                                   ---------                  ---------
                                                   ---------                  ---------
Exercisable......................................    375,108                    513,991
                                                   ---------                  ---------
                                                   ---------                  ---------
</TABLE>
 
    Subsequent  to May 31, 1995 the Company granted an additional 34,677 options
at prices  ranging  from  $3.51  to $6.60.  In  addition,  13,152  options  were
cancelled or expired and 8,287 options were exercised.
 
    Shares  reserved for future  issuance at May  31, 1995 are  comprised of the
following:
 
<TABLE>
<S>                                                                          <C>
Shares issuable upon exercise of stock options under the plans.............    786,000
Shares issuable upon exercise of stock warrants by underwriter.............    113,000
                                                                             ---------
Total Shares reserved for future issuance at May 31, 1995..................    899,000
                                                                             ---------
                                                                             ---------
</TABLE>
 
    In November  1995,  the Company  adopted  an Employee  Stock  Purchase  Plan
whereby  certain employees can purchase shares of  common stock at the lesser of
85% of the fair market value of the  stock at the beginning or end of year.  The
Company  has reserved  318,000 shares  of common  stock for  future requirements
under the plan.
 
NOTE 11 -- COMMITMENTS
 
    EMPLOYMENT AGREEMENT
 
    The Company has an  employment agreement as amended,  with an officer  which
expires  in December 1995. The aggregate commitment for future salary, excluding
bonuses, under  the  agreement is  $146,000.  The agreement  also  provides  for
certain  bonuses based upon annual pretax  income. The Company has an employment
agreement with a former LINR shareholder  which expires May 1997. The  aggregate
commitment  for future  salary under  the agreement  is $200,000.  The aggregate
minimum commitment for  future salaries  under both agreements  is $246,000  and
$100,000  in the years ending  May 31, 1996 and  1997, respectively. In December
1995,  the  agreement  with  the  officer   was  extended  to  June  1996   with
substantially the same terms.
 
    LEASES
 
    The Company conducts its operations from leased office space in New York and
Florida.  These leases (classified as operating  leases) expire at various dates
through 2002. Management  expects that in  the normal course  of business  these
leases will be renewed or replaced by other leases.
 
                                      F-12
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 11 -- COMMITMENTS (CONTINUED)
    In  July  1994 the  Company entered  into a  sublease agreement  for certain
office space which expires in 2002.
 
    As of May  31, 1995,  future net minimum  rental payments  (net of  sublease
income)  under operating leases having initial or remaining noncancellable terms
in excess of one year are as follows:
 
<TABLE>
<S>                                               <C>
  1996..........................................  $ 432,000
  1997..........................................    416,000
  1998..........................................    407,000
  1999..........................................    371,000
  2000..........................................    162,000
  Thereafter....................................    153,000
                                                  ---------
                                                  $1,941,000
                                                  ---------
                                                  ---------
</TABLE>
 
    Rental expenses for operating  leases for fiscal years  ended 1995 and  1994
were approximately $332,000 and $329,000, respectively.
 
NOTE 12 -- INCOME TAXES
    The  Company  and  its  subsidiaries file  consolidated  federal  income tax
returns. Effective June  1, 1993, the  Company adopted FASB  Statement No.  109,
"Accounting  for Income Taxes," which requires a liability approach to financial
accounting and reporting for income taxes. The effect of adopting FASB Statement
No. 109  on net  income for  the year  ended May  31, 1994  was an  increase  of
$76,000,  which includes an increase in net income of $65,000 for the cumulative
effect on years  prior to June  1, 1993.  As permitted under  the standard,  the
financial statements for the prior year have not been restated.
 
    The provision for income taxes consists of the following:
 
<TABLE>
<CAPTION>
                                                       YEARS ENDED MAY 31,        NINE MONTHS ENDED
                                                      ----------------------  --------------------------
                                                         1995        1994     FEBRUARY 29,  FEBRUARY 28,
                                                      ----------  ----------      1996          1995
                                                                              ------------  ------------
                                                                               UNAUDITED     UNAUDITED
<S>                                                   <C>         <C>         <C>           <C>
Current:
  Federal...........................................  $  368,000  $  241,000   $  432,000    $  279,000
  State and local...................................     120,000      81,000       88,000        74,000
                                                      ----------  ----------  ------------  ------------
                                                         488,000     322,000      520,000       353,000
                                                      ----------  ----------  ------------  ------------
Deferred:
  Federal...........................................     (14,000)     (8,000)      --            --
  State.............................................      (4,000)     (3,000)      --            --
                                                      ----------  ----------  ------------  ------------
                                                         (18,000)    (11,000)      --            --
                                                      ----------  ----------  ------------  ------------
                                                      $  470,000  $  311,000   $  520,000    $  353,000
                                                      ----------  ----------  ------------  ------------
                                                      ----------  ----------  ------------  ------------
</TABLE>
 
                                      F-13
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 12 -- INCOME TAXES (CONTINUED)
    The components of the net deferred tax asset are as follows:
 
<TABLE>
<CAPTION>
                                                                     YEARS ENDED MAY 31,
                                                                    ----------------------
                                                                       1995        1994
                                                                    ----------  ----------  FEBRUARY 29,
                                                                                                1996
                                                                                            ------------
                                                                                            (UNAUDITED)
<S>                                                                 <C>         <C>         <C>
Deferred tax assets:
  Allowance for doubtful accounts.................................  $  160,000  $  149,000   $  164,000
  Other...........................................................      16,000      14,000       16,000
                                                                    ----------  ----------  ------------
                                                                       176,000     163,000      180,000
Deferred tax liability -- Depreciation............................     (16,000)    (21,000)     (20,000)
                                                                    ----------  ----------  ------------
Net deferred tax asset............................................  $  160,000  $  142,000   $  160,000
                                                                    ----------  ----------  ------------
                                                                    ----------  ----------  ------------
</TABLE>
 
    A  reconciliation between  the actual  income tax  expense and  income taxes
computed by applying  the statutory  federal income  tax rate  to income  before
taxes is as follows:
 
<TABLE>
<CAPTION>
                                                                                YEARS ENDED MAY 31,
                                                                               ----------------------
                                                                                  1995        1994
                                                                               ----------  ----------
<S>                                                                            <C>         <C>
Computed income tax expense at 34%...........................................  $  400,000  $  249,000
Increase (decrease) in taxes resulting from:
  Nondeductible expenses.....................................................      13,000      32,000
  State and local taxes, net.................................................     114,000      53,000
  Other, net.................................................................     (57,000)    (23,000)
                                                                               ----------  ----------
                                                                               $  470,000  $  311,000
                                                                               ----------  ----------
                                                                               ----------  ----------
</TABLE>
 
    Paragon,  a company acquired by the Company in July 1991, has preacquisition
net operating loss  carryforwards of  approximately $140,000  which expire  from
2001  through 2006.  Utilization of  these net  operating loss  carryforwards is
subject  to  substantial  limitations  including  separate  company  and  annual
limitations resulting from the change in control of Paragon.
 
NOTE 13 -- RETIREMENT PLANS
    The  Company  adopted a  401(k) savings  plan in  January 1995  covering all
eligible employees. Employees  may defer up  to 15% of  their compensation.  The
agency  will match 10% of  employees' contributions up to  8%. A contribution of
approximately $11,000 was made during the  nine month period ended February  29,
1996.
 
    A  subsidiary  of  the  Company  has  a  deferred  fringe  benefits  welfare
compensation  plan  covering  its  employees.  Contributions  to  the  plan  are
discretionary.  Contributions to  the plan  are based  on employee compensation.
Employees are fully vested at the end of three years. Contributions to the  plan
for the years ended May 31, 1995 and 1994 and for the nine months ended February
29,  1996 and  February 28, 1995  approximated $264,000,  $222,000, $150,000 and
$150,000, respectively.
 
                                      F-14
<PAGE>
                         STAR MULTI CARE SERVICES, INC.
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
      TWO YEARS ENDED MAY 31, 1995 AND NINE MONTHS ENDED FEBRUARY 29, 1996
                             AND FEBRUARY 28, 1995
      (INFORMATION WITH RESPECT TO THE NINE MONTHS ENDED FEBRUARY 29, 1996
                      AND FEBRUARY 28, 1995 IS UNAUDITED)
 
NOTE 14 -- SUPPLEMENTARY INFORMATION -- STATEMENT OF CASH FLOWS
 
    NON-CASH TRANSACTIONS
 
    During the year the Company issued a  note payable of $500,000 to finance  a
portion of the acquisitions mentioned in Note 7.
 
    During  the year the  Company issued a  6% stock dividend  which amounted to
$481,301.
 
    During the nine months ended February 29, 1996 the Company issued a 6% stock
dividend which amounted to $1,028,798.
 
                                      F-15
<PAGE>
               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
The Board of Directors and Shareholders
AMSERV HEALTHCARE INC.
 
    We  have  audited  the  accompanying consolidated  balance  sheet  of AMSERV
HEALTHCARE INC. as of June 24, 1995, and the related consolidated statements  of
operations,  shareholders' equity  and cash flows  for the year  then ended. Our
audit also included the financial statement schedule as of June 24, 1995  listed
in  the index  at Item  14(a). These financial  statements and  schedule are the
responsibility of the Company's management. Our responsibility is to express  an
opinion on these financial statements and schedule based on our audit.
 
    We  conducted  our  audit  in accordance  with  generally  accepted auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also  includes
assessing  the  accounting principles  used  and significant  estimates  made by
management, as well as evaluating the overall financial statement  presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
    In  our opinion,  the 1995  financial statements  referred to  above present
fairly, in all material respects, the consolidated financial position of  AMSERV
HEALTHCARE INC. at June 24, 1995, and the consolidated results of its operations
and its cash flows for the year then ended in conformity with generally accepted
accounting  principles. Also,  in our  opinion, the  related financial statement
schedule, when considered in relation to the basic financial statements taken as
a whole,  present fairly  in all  material respects  the information  set  forth
therein.
 
    As discussed in Note 2 to the consolidated financial statements, the Company
adopted  the provisions of  Statement of Financial  Accounting Standards No. 115
ACCOUNTING FOR CERTAIN INVESTMENTS IN DEBT AND EQUITY SECURITIES in fiscal 1995.
 
                                          /s/ ERNST & YOUNG LLP
                                                ERNST & YOUNG LLP
San Diego, California
August 11, 1995
 
                                      F-16
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
To the Shareholders and Board of Directors
AMSERV HEALTHCARE INC.:
 
    We have  audited  the  accompanying consolidated  balance  sheet  of  AMSERV
HEALTHCARE  INC. and subsidiaries (the  "Company") as of June  30, 1994, and the
related consolidated  statements of  operations, shareholders'  equity and  cash
flows  for  each of  the two  years in  the  period ended  June 30,  1994. These
financial statements are  the responsibility  of the  Company's management.  Our
responsibility  is to express an opinion  on these financial statements based on
our audits.
 
    We conducted  our  audits in  accordance  with generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion,  such consolidated financial  statements present fairly,  in
all  material respects,  the financial  position of the  Company as  of June 30,
1994, and the results of their operations  and their cash flows for each of  the
two  years  in the  period  ended June  30,  1994 in  conformity  with generally
accepted accounting principles.
 
                                            /s/ DELOITTE & TOUCHE LLP
                                                DELOITTE & TOUCHE LLP
 
Las Vegas, Nevada
October 7, 1994
 
                                      F-17
<PAGE>
                             AMSERV HEALTHCARE INC.
 
                          CONSOLIDATED BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                                     JUNE 24,       JUNE 30,
                                                                                       1995           1994
                                                                                   -------------  -------------
<S>                                                                                <C>            <C>
Current Assets
  Cash and cash equivalents (Note 1).............................................  $   1,226,448  $     643,987
  Short-term investments, net (Notes 1 and 2)....................................      1,392,021        676,615
  Accounts receivable, net of allowance for doubtful accounts of $103,264 in 1995
   and $237,687 in 1994..........................................................        973,731      1,964,903
  Federal income taxes refundable................................................       --              326,628
  Other current assets...........................................................        187,463        335,389
                                                                                   -------------  -------------
    Total current assets.........................................................      3,779,663      3,947,522
Equipment, Furniture and Fixtures net of accumulated depreciation of $196,069 in
 1995 and $135,906 in 1994.......................................................        387,821        252,234
Intangible Assets, net (Note 3)..................................................      2,203,113      2,047,540
Other Assets.....................................................................        313,888        311,090
                                                                                   -------------  -------------
                                                                                   $   6,684,485  $   6,558,386
                                                                                   -------------  -------------
                                                                                   -------------  -------------
                       LIABILITIES, REDEEMABLE PREFERRED STOCK AND SHAREHOLDERS' EQUITY
Current Liabilities
  Accounts payable...............................................................  $     105,663  $      70,735
  Accrued payroll and related taxes..............................................        561,143        580,035
  Net liabilities of discontinued operations (Note 4)............................        391,770        116,718
  Other current liabilities......................................................        254,778        277,928
  Current maturities of long-term debt (Notes 5 and 6)...........................       --              333,334
                                                                                   -------------  -------------
    Total current liabilities....................................................      1,313,354      1,378,750
                                                                                   -------------  -------------
Long-Term Liabilities
  Long-term debt net of current maturities (Notes 5 and 6).......................       --              666,666
  Other long-term liabilities....................................................         30,859        165,000
                                                                                   -------------  -------------
    Total long-term liabilities..................................................         30,859        831,666
                                                                                   -------------  -------------
Redeemable Preferred Stock
  Preferred stock, $.01 par value; authorized 3,000,000 shares; Class A
   Redeemable issued and outstanding 341,435 shares in 1995 and none in 1994
   (Note 7)......................................................................          3,414       --
  Additional paid-in capital (Note 7)............................................        679,456       --
                                                                                   -------------  -------------
    Total redeemable preferred stock.............................................        682,870       --
Commitments and Contingencies (Notes 6, 10 and 11)
Common Shareholders' Equity
  Common stock, $.01 par value; authorized 15,000,000 shares; 3,295,356 shares
   outstanding in 1995 and 3,087,794 shares outstanding in 1994 (Note 8).........         32,953         30,877
  Treasury stock, at cost, 143,268 shares (Note 8)...............................       (296,053)      (296,053)
  Additional paid-in capital.....................................................      6,787,963      6,373,936
  Note receivable from officer (Note 12).........................................       (198,440)      --
  Unrealized loss on short-term investments (Note 2).............................        (14,564)      --
  Retained earnings (deficit)....................................................     (1,654,457)    (1,760,790)
                                                                                   -------------  -------------
    Total common shareholders' equity............................................      4,657,402      4,347,970
                                                                                   -------------  -------------
                                                                                   $   6,684,485  $   6,558,386
                                                                                   -------------  -------------
                                                                                   -------------  -------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-18
<PAGE>
                             AMSERV HEALTHCARE INC.
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                                          YEARS ENDED JUNE 30,
                                                                         YEAR ENDED    ---------------------------
                                                                        JUNE 24, 1995      1994           1993
                                                                        -------------  -------------  ------------
<S>                                                                     <C>            <C>            <C>
Operating Revenues....................................................  $  11,341,609  $   7,525,822  $  6,048,748
                                                                        -------------  -------------  ------------
Operating Expenses
  Selling, general and administrative.................................     10,914,279      7,321,290     5,907,124
  Depreciation and amortization (Note 1)..............................        415,143        373,321       358,979
                                                                        -------------  -------------  ------------
    Total operating expenses..........................................     11,329,422      7,694,611     6,266,103
                                                                        -------------  -------------  ------------
Operating Income (Loss)...............................................         12,187       (168,789)     (217,355)
Interest Expense......................................................        (51,543)        (8,254)      (24,471)
Interest Income.......................................................         93,742         88,541       111,227
                                                                        -------------  -------------  ------------
Income (Loss) From Continuing Operations Before Provision for Income
 Taxes................................................................         54,386        (88,502)     (130,599)
Income Tax Provision (Benefit) (Note 9)...............................          2,038        (25,168)      (59,207)
                                                                        -------------  -------------  ------------
Income (Loss) From Continuing Operations..............................         52,348        (63,334)      (71,392)
Discontinued Operations (Note 4)
  Income (loss) from discounted operations, net of income taxes of
   ($282,401) in 1994 and ($297,793) in 1993..........................       --             (710,636)     (359,076)
Gain (loss) on disposal of discontinued operations, net of income
 taxes of $168,211 in 1995 and ($77,110) in 1994......................         30,302     (1,167,949)      --
Cumulative Effect to July 1, 1994 of change in Accounting Principle,
 net of income taxes of $12,752.......................................         23,683       --             --
                                                                        -------------  -------------  ------------
Net Income (Loss).....................................................  $     106,333  $  (1,941,919) $   (430,468)
                                                                        -------------  -------------  ------------
                                                                        -------------  -------------  ------------
Income (Loss) Per Common Share (Note 1)
  Income (loss) from continuing operations............................  $         .02  $        (.02) $       (.03)
  Loss from discontinued operations...................................       --                 (.24)         (.12)
  Gain (loss) on disposal of discontinued operations..................            .01           (.40)      --
  Cumulative Effect of change in accounting principle.................       --             --             --
  Net income (loss)...................................................  $         .03  $        (.66) $       (.15)
                                                                        -------------  -------------  ------------
Shares Used in Computing Per Share Amounts............................      3,111,527      2,944,526     2,960,647
                                                                        -------------  -------------  ------------
                                                                        -------------  -------------  ------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-19
<PAGE>
                             AMSERV HEALTHCARE INC.
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
<TABLE>
<CAPTION>
                                                          YEARS ENDED JUNE 24, 1995, JUNE 30, 1994 AND 1993
                                   -----------------------------------------------------------------------------------------------
                                                                                                 NOTE      UNREALIZED
                                        COMMON STOCK          TREASURY STOCK     ADDITIONAL   RECEIVABLE     (LOSS)      RETAINED
                                   ----------------------  --------------------    PAID-IN       FROM          ON        EARNINGS
                                    SHARES      AMOUNT      SHARES     AMOUNT      CAPITAL      OFFICER    INVESTMENTS  (DEFICIT)
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
<S>                                <C>        <C>          <C>        <C>        <C>          <C>          <C>          <C>
Balances at June 30, 1992........  2,917,794   $  29,177      27,800  $ (62,800)  $6,120,636   $  --        $  --       $  611,597
  Shares issued in acquisition of
   MED-PRO (Note 6)..............    170,000       1,700      --         --         253,300       --           --           --
  Treasury stock acquired (Note
   8)............................     --          --         115,468   (233,253)     --           --           --           --
  Net loss.......................     --          --          --         --          --           --           --         (430,468)
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
Balances at June 30, 1993........  3,087,794      30,877     143,268   (296,053)  6,373,936       --           --          181,129
  Net loss.......................     --          --          --         --          --           --           --       (1,941,919)
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
Balances at June 30, 1994........  3,087,794      30,877     143,268   (296,053)  6,373,936       --           --       (1,760,790)
  Stock Options exercised
   including income tax benefit
   (Note 12).....................    207,562       2,076      --         --         414,027     (198,440)      --           --
  Cumulative effect of change in
   accounting principle (Note
   2)............................     --          --          --         --          --           --          (23,683)      --
  Change in unrealized loss on
   short-term investments........     --          --          --         --          --           --            9,119       --
  Net income.....................     --          --          --         --          --           --           --          106,333
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
Balances at June 24, 1995........  3,295,356   $  32,953     143,268  $(296,053)  $6,787,963   $(198,440)   $ (14,564)  $(1,654,457)
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
                                   ---------  -----------  ---------  ---------  -----------  -----------  -----------  ----------
 
<CAPTION>
 
                                     TOTAL
                                   ----------
<S>                                <C>
Balances at June 30, 1992........  $6,698,610
  Shares issued in acquisition of
   MED-PRO (Note 6)..............     255,000
  Treasury stock acquired (Note
   8)............................    (233,253)
  Net loss.......................    (430,468)
                                   ----------
Balances at June 30, 1993........   6,289,889
  Net loss.......................  (1,941,919)
                                   ----------
Balances at June 30, 1994........   4,347,970
  Stock Options exercised
   including income tax benefit
   (Note 12).....................     217,663
  Cumulative effect of change in
   accounting principle (Note
   2)............................     (23,683)
  Change in unrealized loss on
   short-term investments........       9,119
  Net income.....................     106,333
                                   ----------
Balances at June 24, 1995........  $4,657,402
                                   ----------
                                   ----------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-20
<PAGE>
                             AMSERV HEALTHCARE INC.
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                                            YEARS ENDED JUNE 30,
                                                                             YEAR ENDED    ----------------------
                                                                            JUNE 24, 1995     1994        1993
                                                                            -------------  ----------  ----------
<S>                                                                         <C>            <C>         <C>
OPERATING ACTIVITIES:
  Net income (loss).......................................................   $   106,333   $(1,941,919) $ (430,468)
  Noncash items included in net income (loss):
    Deferred income taxes.................................................         5,235       --          --
    Cumulative effect of change in accounting principles..................       (23,683)      --          --
    (Gain) loss on disposal of discontinued operations....................       (30,302)   1,167,949      --
    Depreciation and amortization.........................................       415,143      548,749     579,342
    Provision for doubtful accounts.......................................      (134,423)      --         140,000
    Write-off of intangibles..............................................       --           137,616      --
    Gain on stock acquired in legal settlement............................       --            --         (52,500)
    Loss on disposal of equipment, furniture and fixtures.................        32,680       45,078      15,575
  Changes in assets and liabilities:
    Accounts receivable...................................................     1,125,595       99,776     202,763
    Income taxes..........................................................       326,628      200,998    (133,221)
    Other assets..........................................................        94,717      (30,360)   (135,451)
    Accounts payable......................................................        34,928       23,094      (9,591)
    Loss contracts and unfavorable leases.................................       --           (44,000)   (206,000)
    Other liabilities.....................................................       (87,816)    (106,876)   (230,953)
                                                                            -------------  ----------  ----------
Net cash provided by (used in) operating activities.......................     1,865,035      100,105    (260,504)
 
INVESTING ACTIVITIES:
  Proceeds from sale of discontinued operations...........................       813,941       --          --
  Payment of costs related to discontinued operations.....................      (508,587)      --        (361,979)
  Proceeds from sale of short-term investments............................       880,000      268,750   2,503,309
  Purchase of short-term investments......................................    (1,586,285)    (497,125) (2,064,191)
  Purchase of equipment, furniture and fixtures...........................      (270,835)     (25,965)    (77,504)
  Payments for acquisitions...............................................       --          (678,835)   (871,897)
  Cash received on notes receivable.......................................        50,411      191,504     185,496
  Issuance of note receivable.............................................       --            --        (100,000)
  Payment of earnout advance..............................................      (500,000)      --          --
  Proceeds from sale of equipment, furniture and fixtures.................        31,851        4,034      --
                                                                            -------------  ----------  ----------
Net cash used in investing activities.....................................    (1,089,504)    (737,637)   (786,766)
 
FINANCING ACTIVITIES:
  Repayment of long-term debt.............................................      (166,666)      --        (666,666)
  Purchase of treasury stock..............................................       --            --        (180,753)
  Issuance of note payable................................................       --           130,587      --
  Repayment on note payable...............................................       (73,349)     (57,238)     --
  Redemption of Class A preferred shares..................................      (170,718)      --          --
  Exercise of employee stock options......................................       217,663       --
                                                                            -------------  ----------  ----------
Net cash provided by (used in) financing activities.......................      (193,070)      73,349    (847,419)
                                                                            -------------  ----------  ----------
Net increase (decrease) in cash and cash equivalents......................       582,461     (564,183) (1,894,689)
Cash and cash equivalents at beginning of year............................       643,987    1,208,170   3,102,859
                                                                            -------------  ----------  ----------
Cash and cash equivalents at end of year..................................   $ 1,226,448   $  643,987  $1,208,170
                                                                            -------------  ----------  ----------
                                                                            -------------  ----------  ----------
NONCASH FINANCING AND INVESTING ACTIVITIES:
  Transfer from accounts receivable to notes receivable...................       --            80,307      --
  Issuance of common stock in the acquisition of MED-PRO..................       --            --         255,000
  Issuance of Class A redeemable preferred stock in exchange for note
   payable and related accrued interest...................................       853,588       --          --
  Income tax paid.........................................................       145,784        5,294      28,347
  Issuance of common stock upon exercise of options in exchange for note
   receivable.............................................................       198,440       --          --
  Interest paid...........................................................        31,289        2,421      42,804
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-21
<PAGE>
                             AMSERV HEALTHCARE INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 1. ACCOUNTING POLICIES
 
    PRINCIPLES OF CONSOLIDATION
 
    The  consolidated  financial  statements  include  the  accounts  of  AMSERV
HEALTHCARE  INC.  and  its   wholly-owned  subsidiaries  (the  "Company").   All
significant intercompany accounts and transactions have been eliminated. Certain
prior  years'  amounts  have  been reclassified  to  conform  with  current year
presentation.
 
    FISCAL YEAR
 
    During fiscal 1995 the Company commenced utilizing a 52/53-week fiscal  year
ending  on the  last Saturday in  June. Monthly  periods are accounted  for in a
four-week, four-week, five-week  sequence, with  each quarter  consisting of  13
weeks.  All  references to  years relate  to fiscal  years rather  than calendar
years.
 
    CASH AND CASH EQUIVALENTS
 
    For purposes of the consolidated statements of cash flows, cash  equivalents
represent  surplus cash  invested in highly  liquid investments  on a short-term
basis, with maturities of three months or  less at date of purchase, until  such
cash is required for the continuing operations of the Company. At June 24, 1995,
a  substantial portion of the  Company's cash is deposited  in two banks and one
brokerage company. The Company  monitors the financial status  of the banks  and
the  brokerage  company and  does  not believe  the  deposits are  subject  to a
significant degree of risk.
 
    ACCOUNTING FOR INVESTMENTS IN DEBT AND EQUITY SECURITIES
 
    In  July  1994,  the  Company  adopted  Statement  of  Financial  Accounting
Standards  ("SFAS") No.  115, "Accounting  for Certain  Investments in  Debt and
Equity Securities".  The  Company's  management has  classified  its  investment
securities  as available-for-sale and has  recorded unrealized holding gains and
losses as a separate component of shareholders' equity. The cumulative effect of
the change in accounting principle resulted  in an after-tax increase to  income
for unrealized losses of $23,683 at July 1, 1994 (Note 2).
 
    EQUIPMENT, FURNITURE AND FIXTURES
 
    Equipment,  furniture and fixtures  are stated at  cost. Additions and major
improvements are capitalized. Depreciation  is computed using the  straight-line
method  over the estimated useful  lives of the various  classes of assets which
range from three to seven years.
 
    INTANGIBLE ASSETS
 
    The  Company  evaluates  the  carrying   value  of  its  intangible   assets
periodically in order to determine if any indications of impairment are evident.
If  indications of impairment are  noted, the ability of  the Company to recover
the identified intangible's carrying value  on a non-discounted cash flow  basis
is reviewed and changes in the amortization period or carrying value are made if
necessary.
 
    Excess  of cost  over acquired  net assets  is amortized  on a straight-line
basis over periods  ranging from  35 to 37  years. Other  intangible assets  are
stated at acquisition cost and are being amortized on a straight-line basis over
their estimated useful lives of five years.
 
    REVENUE RECOGNITION AND ACCOUNTS RECEIVABLE
 
    Operating  revenue is  reported at  net realizable  amounts from third-party
payors and individual patients for services rendered in the period in which  the
services  are provided.  The Company receives  payment for  services rendered to
patients from state government sponsored programs, private third-party insurance
and individual  patients. Amounts  due from  private third-party  insurance  and
individual  patients are  subject to differing  economic conditions,  and do not
represent any concentrated credit risk to the Company. Management believes  that
reserves are adequate to cover any anticipated losses.
 
                                      F-22
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 1. ACCOUNTING POLICIES (CONTINUED)
    INCOME TAXES
 
    Effective   July  1,  1993,  the  Company  adopted  Statement  of  Financial
Accounting Standards No.  109, "Accounting  for Income Taxes".  The adoption  of
SFAS 109 changed the Company's method of accounting for income taxes to an asset
and  liability approach.  Prior to July  1993, the Company  accounted for income
taxes under SFAS No. 96.
 
    EARNINGS PER SHARE
 
    Earnings per share are  based on the weighted  average number of common  and
common equivalent shares outstanding. Certain stock options and warrants are not
included  in the computation of earnings per share because their effect would be
antidilutive. Earnings per share assuming full dilution are the same as  primary
earnings per share.
 
NOTE 2. SHORT-TERM INVESTMENTS
    Short-term  investments are recorded at estimated  fair market value at June
24, 1995 and June 30, 1994, and consist primarily of tax exempt bonds and  money
market  non-government securities with maturities of more than three months, and
common and preferred  stock. In  July 1994, the  Company classified  all of  its
investments as available-for-sale securities according to Statement of Financial
Accounting  Standards No. 115. The following table summarizes available-for-sale
securities at June 24, 1995:
 
<TABLE>
<CAPTION>
                                                                       AVAILABLE-FOR-SALE SECURITIES
                                                                  ---------------------------------------
                                                                                   GROSS      ESTIMATED
                                                                                UNREALIZED       FAIR
                                                                      COST        LOSSES        VALUE
                                                                  ------------  -----------  ------------
<S>                                                               <C>           <C>          <C>
Money Market/Non-Govt Securities................................  $    453,903   $   2,494   $    451,409
Tax Exempt Government Bonds.....................................       605,020         158        604,862
Common Stock....................................................       110,000      23,000         87,000
Preferred Stock.................................................       250,000       1,250        248,750
                                                                  ------------  -----------  ------------
    Total.......................................................  $  1,418,923   $  26,902   $  1,392,021
                                                                  ------------  -----------  ------------
                                                                  ------------  -----------  ------------
</TABLE>
 
    As a  result of  the  adoption of  SFAS No.  115,  the Company  records  net
unrealized  holding gains and losses,  net of income tax  effects, as a separate
component of  shareholders'  equity.  Previously,  unrealized  losses  had  been
charged  to  operations.  The cumulative  effect  of this  change  in accounting
principle resulted in an after-tax adjustment to earnings of $23,683 at July  1,
1994.
 
    The   gross  realized  gains  and  losses  on  sales  of  available-for-sale
securities were  $4,538  and $2,125  respectively,  in fiscal  1995.  The  gross
realized  loss on sales  of available-for-sale securities  was $11,250 in fiscal
1994.
 
                                      F-23
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 2. SHORT-TERM INVESTMENTS (CONTINUED)
    The amortized cost  and estimated  fair value of  short-term investments  at
June 24, 1995, by contractual maturity, are shown below. Expected maturities may
differ  from contractual maturities  because issuers of  the securities may have
the right to prepay obligations without prepayment penalties.
 
<TABLE>
<CAPTION>
                                                                                          ESTIMATED
                                                                                             FAIR
                                                                               COST         VALUE
                                                                           ------------  ------------
<S>                                                                        <C>           <C>
Due in one year or less..................................................  $    603,958  $    601,410
Due after one year through three years...................................       --            --
Due after three years....................................................       454,965       454,861
Equity Securities........................................................       360,000       335,750
                                                                           ------------  ------------
    Total................................................................  $  1,418,923  $  1,392,021
                                                                           ------------  ------------
                                                                           ------------  ------------
</TABLE>
 
NOTE 3. INTANGIBLE ASSETS
    Intangible  assets  acquired  in  acquisitions  (Note  6)  consist  of   the
following:
 
<TABLE>
<CAPTION>
                                                                             JUNE 24,      JUNE 30,
                                                                               1995          1994
                                                                           ------------  ------------
<S>                                                                        <C>           <C>
Excess of cost over acquired net assets..................................  $  2,088,063  $  1,588,063
Assembled workforce......................................................       497,154       497,154
Accreditation and training programs......................................       502,846       502,846
Covenant not to compete..................................................       525,000       525,000
                                                                           ------------  ------------
                                                                              3,613,063     3,113,063
Less: Accumulated amortization...........................................     1,409,950     1,065,523
                                                                           ------------  ------------
                                                                           $  2,203,113  $  2,047,540
                                                                           ------------  ------------
                                                                           ------------  ------------
</TABLE>
 
NOTE 4. DISCONTINUED OPERATIONS
    On  September 20, 1994,  the Company signed  a Letter of  Intent to sell its
temporary nursing services business. As a result, the Company recorded a  fiscal
1994  fourth quarter charge of $1,167,949  (after income tax benefit of $77,110)
to provide for a loss on the disposal of these discontinued operations and their
after-tax estimated operating  losses of  $149,627 until the  estimated date  of
disposal.  On November 9, 1994, the Company completed this transaction, and sold
substantially all of the  fixed and intangible assets  of its temporary  nursing
services  business for  $814,000 in cash.  The related net  liabilities for this
discontinued operation are included in the balance sheet under the caption  "Net
liabilities  of discontinued operations".  The balance remaining  unpaid at June
24, 1995, relates to  various state and local  tax and payroll liabilities  that
have  not been finalized and a  remaining severance obligation. The consolidated
statements of  operations for  fiscal 1995,  1994 and  1993, exclude  sales  and
expenses for its temporary nursing services business
 
                                      F-24
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 4. DISCONTINUED OPERATIONS (CONTINUED)
from   captions  applicable   to  continuing   operations.  Revenues   from  the
discontinued operation during fiscal 1995 were $3,988,696. Operating results  of
the discontinued operation for fiscal years 1994 and 1993 are summarized below:
 
<TABLE>
<CAPTION>
                                                              FISCAL YEARS ENDED JUNE 30,
                                                              ----------------------------
                                                                  1994           1993
                                                              -------------  -------------
<S>                                                           <C>            <C>
Net Sales...................................................  $  12,022,618  $  12,799,605
Loss Before Income Taxes....................................       (993,037)      (656,869)
Income Tax Benefit..........................................       (282,401)      (297,793)
Loss from Discontinued Operations...........................       (710,636)      (359,076)
</TABLE>
 
NOTE 5. LONG-TERM DEBT
    Long-term  debt at  June 30, 1994,  consists of a  $1,000,000 unsecured note
payable (less current maturities of $333,334)  issued in the acquisition of  the
assets  of North Central  Personnel, Inc. (Note  6). In April  1995, the Company
exchanged this note for redeemable preferred stock (Note 7).
 
NOTE 6. ACQUISITIONS
    On June 10, 1994,  the Company, through  its wholly-owned subsidiary  AMSERV
HEALTHCARE  OF OHIO INC., acquired substantially  all the assets and property of
North Central Personnel, Inc. ("NCP"). The acquisition, which was accounted  for
as  a purchase, had  an initial purchase  price of $1,553,835.  The Company paid
$553,835 of the  purchase price  with cash, and  the balance  of $1,000,000  was
financed by a promissory note payable to the seller (Note 5). The final purchase
price  is contingent on an earnout and will  be equal to the operating income of
the North Central division  for the three  year period ending  June 9, 1997,  of
which  $500,000 was advanced  on April 6,  1995. The remaining  earnout will not
exceed $500,000. The excess of the purchase price over the valuation of tangible
assets was assigned  to goodwill  ($1,047,000) and  a non-competition  agreement
($25,000). The earnout advance and all future earnout payments will be accounted
for as additional purchase price of NCP.
 
    The  consolidated  statement  of  operations for  fiscal  1994  included the
operating results of North  Central from May 29,  1994. The following  unaudited
pro  forma  results of  continuing operations  have  been prepared  assuming the
acquisition had  occurred  July 1,  1993.  This  pro forma  information  is  for
comparative  purposes only and does not purport to be indicative of results that
would have occurred if the acquisition had been made at the beginning of  fiscal
year  1994, and is not intended to be a projection of results which may occur in
the future.
 
<TABLE>
<CAPTION>
                                                                                   YEAR ENDED
                                                                                    JUNE 30,
                                                                                      1994
                                                                                  ------------
<S>                                                                               <C>
Net Sales.......................................................................  $  9,639,076
Income from Continuing Operations...............................................  $    146,651
Income from Continuing Operations Per Common Share..............................  $        .05
</TABLE>
 
    In July 1992, the Company acquired substantially all of the operating assets
and property of MED-PRO,  Inc. ("MED-PRO"), a  leading provider of  supplemental
staffing  to healthcare  facilities with offices  in Phoenix, San  Diego and San
Francisco. The acquisition was accounted for as a purchase and, accordingly, the
results of operations of  the acquired business were  included in the  Company's
fiscal 1993 operating
 
                                      F-25
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 6. ACQUISITIONS (CONTINUED)
results from July 21, 1992. The purchase price consisted of cash of $872,000 and
170,000  restricted shares of AMSERV HEALTHCARE  common stock. The operations of
MED-PRO were sold  with the  sale of  the Company's  temporary nursing  services
business in November 1994 (Note 4).
 
NOTE 7. REDEEMABLE PREFERRED STOCK
    In  April 1995,  the Company  issued 426,794  shares of  its voting  Class A
Redeemable Preferred Stock, which had a redemption value of $2.00 per share,  in
exchange for the Company's promissory note payable to North Central (Note 6) and
related  accrued interest which  totalled $853,588 on the  date of the exchange.
The preferred shares pay no dividends and  may be redeemed at the option of  the
holder,  in specified installments for cash. On May 29, 1995, 85,359 shares were
redeemed for  $170,718. Subsequently,  on July  6, 1995,  the remaining  341,435
Class  A  Redeemable  Preferred  Shares  were  exchanged  for  260,141  Class  B
Redeemable Preferred Shares,  with a redemption  price of $2.625  per share.  In
addition,  the Company may  redeem the Class  B shares in  their entirety at its
discretion. These remaining 260,141 shares with an aggregate redemption value of
$682,870 at June  24, 1995,  may be  redeemed in  installments of  approximately
65,000 shares on November 29, 1995, May 29, 1996, November 29, 1996, and May 29,
1997.  All outstanding Class B shares become  redeemable in the event of default
or change of control. Holders of all classes of Redeemable Preferred Stock  have
the same voting rights as common stock.
 
    Following  is a summary of  the aggregate redemption amounts  of the Class B
shares:
 
<TABLE>
<CAPTION>
FISCAL YEAR ENDING                                                AMOUNT
- --------------------------------------------------------------  ----------
<S>                                                             <C>
1996..........................................................  $  341,434
1997..........................................................  $  341,436
</TABLE>
 
NOTE 8. COMMON STOCK
 
    TREASURY STOCK
 
    In March 1992, the Board of  Directors authorized the Company to  repurchase
up to ten percent of its common stock. During fiscal 1992, the Company purchased
27,800  shares at an  average price of  $2.26 per share.  In fiscal 1993, 85,468
shares were purchased at an average price  of $2.11 per share and 30,000  shares
with  a value of $52,500 were acquired in a legal settlement. The Board voted to
discontinue the stock repurchase program in January 1993.
 
    1991 STOCK OPTION PLAN
 
    In November 1991, the shareholders of  the Company approved the "1991  Stock
Option  Plan" (the "Plan"), which replaced  the 1982 Incentive Stock Option Plan
and the 1987  Non-Qualified Stock Option  plan. The  purpose of the  Plan is  to
promote  the overall financial objectives of the Company and its shareholders by
motivating those  persons  selected  to  participate  in  the  Plan  to  achieve
long-term  growth  in shareholder  equity in  the Company  and by  retaining the
association of those individuals who are instrumental in achieving this  growth.
Options  granted under the  Plan may be  either Incentive Stock  Options or Non-
Qualified Stock Options. The price per  share is determined by the Stock  Option
Committee  of  the Board  of Directors  at the  time of  the grant.  All options
granted under the Plan to  date by the Company have  been granted at the  market
price  of  the  stock  on  the grant  date  and  therefore  no  compensation was
recognized. The options are exercisable for a period of ten years from the  date
of  grant, subject to earlier termination as  set forth in the Plan. Options are
exercisable according to  vesting schedules  as determined by  the Stock  Option
Committee.  As of  June 24,  1995, there were  1,201,677 shares  of common stock
reserved for options.
 
                                      F-26
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 8. COMMON STOCK (CONTINUED)
    Following is a summary  of option activity for  fiscal years 1995, 1994  and
1993:
 
<TABLE>
<CAPTION>
                                                                       OPTIONS     OPTIONS    AVAILABLE
                                                                     EXERCISABLE   GRANTED    FOR GRANT
                                                                     -----------  ----------  ----------
<S>                                                                  <C>          <C>         <C>
Outstanding, June 30, 1992
 ($1.81 to $6.38 per share)........................................     501,993      596,922     812,317
  Granted..........................................................      --          135,800    (135,800)
  Became exercisable...............................................      53,169       --          --
  Canceled or expired..............................................     (51,789)     (84,229)     84,229
                                                                     -----------  ----------  ----------
Outstanding, June 30, 1993
 ($1.44 to $6.38 per share)........................................     503,373      648,493     760,746
  Granted..........................................................      --           54,800     (54,800)
  Became exercisable...............................................      43,812       --          --
  Canceled or expired..............................................      (7,250)     (39,700)     39,700
                                                                     -----------  ----------  ----------
Outstanding, June 30, 1994
 ($1.00 to $6.38 per share)........................................     539,935      663,593     745,646
  Granted..........................................................      --           15,200     (15,200)
  Became exercisable...............................................      52,763       --          --
  Options exercised................................................    (207,562)    (207,562)     --
  Canceled or expired..............................................     (73,374)    (112,750)    112,750
                                                                     -----------  ----------  ----------
Outstanding, June 24, 1995
 ($1.00 to $6.38 per share)........................................     311,762      358,481     843,196
                                                                     -----------  ----------  ----------
                                                                     -----------  ----------  ----------
</TABLE>
 
NOTE 9. INCOME TAXES
    Effective July 1, 1993, the Company adopted SFAS 109 on a prospective basis.
The  impact of adopting SFAS 109 was  not material to the consolidated financial
statements.
 
    Components of  the  provision (benefit)  for  income taxes  from  continuing
operations are as follows:
 
<TABLE>
<CAPTION>
                                                                       JUNE 24,    JUNE 30,    JUNE 30,
                                                                         1995        1994        1993
                                                                      ----------  ----------  ----------
<S>                                                                   <C>         <C>         <C>
Current:
  Federal...........................................................  $  (53,219) $  (25,168) $  (59,207)
  State.............................................................      50,022      --          --
                                                                      ----------  ----------  ----------
                                                                          (3,197)    (25,168)    (59,207)
Deferred:
  Federal...........................................................       5,235      --          --
  State.............................................................      --          --          --
                                                                      ----------  ----------  ----------
                                                                           5,235      --          --
                                                                      ----------  ----------  ----------
    Total Provision.................................................  $    2,038  $  (25,168) $  (59,207)
                                                                      ----------  ----------  ----------
                                                                      ----------  ----------  ----------
</TABLE>
 
                                      F-27
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 9. INCOME TAXES (CONTINUED)
    Significant  components of the Company's deferred tax assets and liabilities
are as follows:
 
<TABLE>
<CAPTION>
                                                                                JUNE 24,    JUNE 30,
                                                                                  1995        1994
                                                                               ----------  ----------
<S>                                                                            <C>         <C>
Deferred tax assets:
  Reserve for discontinued operations........................................  $  157,249  $  278,490
  Bad debt reserve...........................................................      41,448      95,403
  Accrued expenses...........................................................     102,190     176,983
  Securities valuation.......................................................       8,976      16,260
  Tax credits................................................................      92,696      92,696
  Net operating loss carryforward............................................       9,060      13,288
  State taxes................................................................       1,088       1,088
                                                                               ----------  ----------
    Total deferred tax assets................................................     412,707     674,208
                                                                               ----------  ----------
Deferred tax liabilities:
  Depreciation and amortization..............................................     (38,069)   (146,555)
  Prepaid expenses...........................................................     (38,874)    (98,643)
                                                                               ----------  ----------
    Total deferred tax liabilities...........................................     (76,943)   (245,198)
                                                                               ----------  ----------
Valuation allowance..........................................................    (335,764)   (346,665)
                                                                               ----------  ----------
Net deferred tax asset.......................................................  $   --      $   82,345
                                                                               ----------  ----------
                                                                               ----------  ----------
</TABLE>
 
    The net deferred tax assets and liabilities at June 30, 1994, are  reflected
in part in the "Net liabilities of discontinued operations" on the balance sheet
at June 30, 1994. In 1995, the valuation allowance was adjusted to fully reserve
for the net deferred tax assets as realization is not assured.
 
    The   Company  has   a  California   net  operating   loss  carryforward  of
approximately $135,000 which  will begin  to expire  in 1997.  In addition,  the
Company has investment tax credits of $48,401 which will begin expiring in 1999.
The  Company also has  $44,295 of alternative  minimum tax credits  which may be
carried forward indefinitely. No benefit  for the credit carryforwards has  been
recognized in the financial statements.
 
    A  reconciliation  between the  amount computed  by multiplying  income from
continuing operations by the statutory federal  rate and the amount of  reported
income taxes is as follows:
 
<TABLE>
<CAPTION>
                                                  JUNE 24, 1995          JUNE 30, 1994          JUNE 30, 1993
                                              ---------------------  ---------------------  ---------------------
                                                AMOUNT        %        AMOUNT        %        AMOUNT        %
                                              ----------  ---------  ----------  ---------  ----------  ---------
<S>                                           <C>         <C>        <C>         <C>        <C>         <C>
Taxes based on statutory rate of 35%........  $   19,035       35.0  $  (30,975)      35.0  $  (44,403)      34.0
State taxes, net of federal benefit.........      33,015       60.7      --         --          --         --
Surtax benefit..............................     (10,877)     (20.0)        885       (1.0)     --         --
Items without tax benefit...................      38,552       70.9      --         --          --         --
Valuation allowance.........................     (77,687)    (142.8)      4,922       (5.5)    (14,804)      11.3
                                              ----------  ---------  ----------        ---  ----------        ---
    Tax Provision...........................  $    2,038        3.8  $  (25,168)      28.5  $  (59,207)      45.3
                                              ----------  ---------  ----------        ---  ----------        ---
                                              ----------  ---------  ----------        ---  ----------        ---
</TABLE>
 
NOTE 10. LEASE COMMITMENTS
    The  Company leases  seven office  facilities for  its continuing operations
under operating leases which expire on  various dates through October 1999.  The
leases generally provide that the Company pay the taxes,
 
                                      F-28
<PAGE>
                             AMSERV HEALTHCARE INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 10. LEASE COMMITMENTS (CONTINUED)
insurance,  and maintenance expenses related to  the leased property and include
early termination clauses which allow cancellation with penalties. The following
is a schedule by fiscal year of future minimum rental payments for these  leases
as of June 24, 1995:
 
<TABLE>
<S>                                                 <C>
1996..............................................  $ 202,068
1997..............................................    169,479
1998..............................................    125,344
1999..............................................     97,365
2000..............................................      6,872
                                                    ---------
                                                    $ 601,128
                                                    ---------
                                                    ---------
</TABLE>
 
    Rental  expense for  continuing operations  for fiscal  1995, 1994  and 1993
under  all  operating  leases  amounted  to  $187,106,  $141,037  and  $132,657,
respectively.
 
NOTE 11. CONTINGENCY
    In  connection with the sale of AMSERV MEDICAL PRODUCTS in 1992, the Company
has guaranteed certain lease payments will be made by the purchasers. The amount
of future lease payments guaranteed by the Company totalled $405,093 at June 24,
1995 and are payable through September 1998.
 
NOTE 12. NOTE RECEIVABLE FROM OFFICER
    On April 20, 1995, the Company accepted a non-recourse promissory note  from
the Company's Chief Executive Officer, Eugene J. Mora, in the original principal
amount  of $198,440, bearing interest at a rate of 10% per annum and maturing in
April 2000, and $1,100 in cash for the exercise of options for 110,000 shares of
the Company's common stock. The promissory note is secured by 177,562 shares  of
the Company's common stock owned by Mr. Mora.
 
NOTE 13. RELATED PARTY TRANSACTIONS
    A  director of  the Company, Melvin  L. Katten, is  a partner in  a law firm
which provided certain legal services to the Company. The Company incurred legal
fees with such firm of $114,208, $39,272 and $20,996 for fiscal years 1995, 1994
and 1993, respectively.
 
NOTE 14. FOURTH QUARTER ADJUSTMENT
    The fiscal 1995 results  of operations include an  adjustment in the  fourth
quarter  totalling approximately $138,000 that resulted  from an increase in the
income tax provision related to  the Company's previously reported  discontinued
operation which should have been recorded in the second quarter of fiscal 1995.
 
                                      F-29
<PAGE>
                        PART I -- FINANCIAL INFORMATION
                             AMSERV HEALTHCARE INC.
                     CONDENSED CONSOLIDATED BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                                                    JUNE 24,
                                                                                                      1995
                                                                                     MARCH 23,    -------------
                                                                                       1996
                                                                                   -------------
                                                                                    (UNAUDITED)
<S>                                                                                <C>            <C>
Current Assets
  Cash and cash equivalents......................................................  $   2,305,423  $   1,226,448
  Short-term investments, net....................................................        103,500      1,392,021
  Accounts receivable, net of allowance for doubtful accounts of $87,811 and
   $103,264, respectively........................................................      1,320,969        973,731
  Other current assets...........................................................        390,827        187,463
                                                                                   -------------  -------------
    Total current assets.........................................................      4,120,719      3,779,663
Equipment, furniture and fixtures net of accumulated depreciation of $273,369 and
 $196,069, respectively..........................................................        429,597        387,821
Intangible assets, net...........................................................      2,004,881      2,203,113
Other assets.....................................................................        227,863        313,888
                                                                                   -------------  -------------
                                                                                   $   6,833,060  $   6,684,485
                                                                                   -------------  -------------
                                                                                   -------------  -------------
 
                       LIABILITIES, REDEEMABLE PREFERRED STOCK AND SHAREHOLDERS' EQUITY
Current Liabilities
  Accounts payable...............................................................  $      35,139  $     105,663
  Accrued payroll and related taxes..............................................        780,407        561,143
  Net liabilities of discontinued operations (Note 4)............................        115,422        391,770
  Other current liabilities......................................................        258,296        254,778
                                                                                   -------------  -------------
    Total current liabilities....................................................      1,189,264      1,313,354
                                                                                   -------------  -------------
Long-Term Liabilities
  Other long-term liabilities....................................................         33,406         30,859
                                                                                   -------------  -------------
    Total long-term liabilities..................................................         33,406         30,859
                                                                                   -------------  -------------
Redeemable Preferred Stock
  Redeemable preferred stock, $.01 par value; authorized 3,000,000 shares:
    Class A; issued and outstanding 341,435 shares (Note 5)......................       --                3,414
    Class B; issued and outstanding 195,106 shares (Note 5)......................          1,951       --
  Additional paid-in capital (Note 5)............................................        510,202        679,456
                                                                                   -------------  -------------
    Total redeemable preferred stock.............................................        512,153        682,870
Common Shareholders' Equity
  Common stock, $.01 par value; authorized 15,000,000 shares; 3,448,221 shares
   and 3,295,356 shares outstanding, respectively................................         34,482         32,953
  Treasury stock, at cost, 143,268 shares........................................       (296,053)      (296,053)
  Additional paid-in capital.....................................................      7,064,031      6,787,963
  Notes receivable from officer..................................................       (397,782)      (198,440)
  Unrealized gain (loss) on short-term investments...............................          5,838        (14,564)
  Accumulated deficit............................................................     (1,312,279)    (1,654,457)
                                                                                   -------------  -------------
    Total common shareholders' equity............................................      5,098,237      4,657,402
                                                                                   -------------  -------------
                                                                                   $   6,833,060  $   6,684,485
                                                                                   -------------  -------------
                                                                                   -------------  -------------
</TABLE>
 
See accompanying notes to unaudited condensed consolidated financial statements.
 
                                      F-30
<PAGE>
                             AMSERV HEALTHCARE INC.
 
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
 
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                         NINE MONTHS ENDED
                                                                                     --------------------------
                                                                                      MARCH 23,     MARCH 31,
                                                                                         1996          1995
                                                                                     ------------  ------------
<S>                                                                                  <C>           <C>
Operating Revenues.................................................................  $  9,117,616  $  8,402,485
                                                                                     ------------  ------------
Operating Expenses
  Selling, general and administrative..............................................     8,396,028     7,783,797
  Depreciation and amortization....................................................       275,532       330,806
                                                                                     ------------  ------------
    Total Operating Expenses.......................................................     8,671,560     8,114,603
                                                                                     ------------  ------------
Operating Income from Continuing Operations........................................       446,056       287,882
Interest Expense...................................................................       --            (50,726)
Interest Income....................................................................       120,122        66,599
                                                                                     ------------  ------------
Income from Continuing Operations Before Provision for Income Taxes................       566,178       303,755
Income Tax Provision...............................................................       224,000        79,000
                                                                                     ------------  ------------
Net Income from Continuing Operations..............................................       342,178       224,755
Gain on Disposal of Discontinued Operations (less applicable income tax provision
 of $29,777).......................................................................       --            168,736
                                                                                     ------------  ------------
Net Income.........................................................................  $    342,178  $    393,491
                                                                                     ------------  ------------
                                                                                     ------------  ------------
Net Income Per Common Share:
  Income from Continuing Operations................................................  $       0.10  $       0.07
  Gain on Disposal of Discontinued Operations......................................       --               0.05
                                                                                     ------------  ------------
Net Income.........................................................................  $       0.10  $       0.12
                                                                                     ------------  ------------
                                                                                     ------------  ------------
Shares Used in Computing Per Share Amounts.........................................     3,269,084     3,132,660
                                                                                     ------------  ------------
                                                                                     ------------  ------------
</TABLE>
 
See accompanying notes to unaudited condensed consolidated financial statements.
 
                                      F-31
<PAGE>
                             AMSERV HEALTHCARE INC.
 
                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
 
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                        NINE MONTHS ENDED
                                                                                   ----------------------------
                                                                                     MARCH 23,      MARCH 31,
                                                                                       1996           1995
                                                                                   -------------  -------------
<S>                                                                                <C>            <C>
OPERATING ACTIVITIES:
Net income.......................................................................  $     342,178  $     393,491
Noncash items included in net income:
  Depreciation and amortization..................................................        275,532        330,806
  Loss on disposal of equipment, furniture and fixtures..........................       --               32,680
Changes in assets and liabilities:
  Accounts receivable............................................................       (347,238)       822,107
  Income taxes...................................................................        151,443        105,942
  Other assets...................................................................       (167,339)       143,174
  Accounts payable...............................................................        (70,524)       (54,927)
  Other liabilities..............................................................         73,886       (126,039)
                                                                                   -------------  -------------
Net cash provided by operating activities........................................        257,938      1,647,234
INVESTING ACTIVITIES:
  Proceeds from sale of discontinued operations..................................       --              813,941
  Payment of costs related to discontinued operations............................       (276,348)      (560,502)
  Proceeds from sale of short-term investments...................................      2,310,486        405,000
  Purchase of short-term investments.............................................     (1,001,563)    (1,572,829)
  Proceeds from sale of equipment, furniture and fixtures........................       --               31,851
  Purchase of equipment, furniture and fixtures..................................       (119,076)      (256,028)
  Cash received on notes receivable..............................................       --               50,411
                                                                                   -------------  -------------
Net cash provided by (used in) investing activities..............................        913,499     (1,088,156)
FINANCING ACTIVITIES:
  Repayment on note payable......................................................       --             (240,016)
  Redemption of Class B preferred shares.........................................       (170,717)      --
  Exercise of employee stock options.............................................         78,255       --
                                                                                   -------------  -------------
Net cash used in financing activities............................................        (92,462)      (240,016)
                                                                                   -------------  -------------
Net increase in cash and cash equivalents........................................      1,078,975        319,062
Cash and cash equivalents at beginning of year...................................      1,226,448        643,987
                                                                                   -------------  -------------
Cash and cash equivalents at end of period.......................................  $   2,305,423  $     963,049
                                                                                   -------------  -------------
                                                                                   -------------  -------------
NONCASH FINANCING AND INVESTING ACTIVITIES:
Income tax paid..................................................................        189,715        145,884
Interest paid....................................................................       --               37,115
</TABLE>
 
See accompanying notes to unaudited condensed consolidated financial statements.
 
                                      F-32
<PAGE>
                             AMSERV HEALTHCARE INC.
 
         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
1.  ADJUSTMENTS
    In  the opinion  of management  of the  Company, the  accompanying unaudited
condensed consolidated financial  statements reflect  all adjustments  necessary
(which  are  of  a normal  recurring  nature)  to present  fairly  the Company's
financial position as of March 23, 1996, and the results of operations and  cash
flows  for  the nine-month  periods ended  March  23, 1996  and March  31, 1995.
Information included in the condensed consolidated balance sheet as of June  24,
1995  has been derived from the Company's Form  10-K for the year ended June 24,
1995  ("1995  Form  10-K").  The  unaudited  condensed  consolidated   financial
statements  contained herein should be read in conjunction with the consolidated
financial statements and notes contained in the Company's 1995 Form 10-K.
 
2.  FISCAL YEAR
    During fiscal 1995 the Company commenced utilizing a 52/53-week fiscal  year
ending  on the  last Saturday in  June. Monthly  periods are accounted  for in a
four-week, four-week, five-week  sequence, with  each quarter  consisting of  13
weeks.  All  references to  years relate  to fiscal  years rather  than calendar
years.
 
3.  EARNINGS PER SHARE
    Earnings per share for the three and nine month periods ended March 23, 1996
and March 31, 1995 are based on the weighted average number of common and common
stock equivalent shares outstanding. Certain stock options were not included  in
the   computation  of  earnings   per  share  because   their  effect  would  be
antidilutive. Earnings per share assuming full dilution are the same as  primary
earnings per share.
 
4.  DISCONTINUED OPERATIONS
    On  November 9, 1994,  the Company sold  substantially all of  the fixed and
intangible assets of  its temporary  nursing services business  for $814,000  in
cash.  The related net liabilities for  this discontinued operation are included
in the  balance  sheet  under  the  caption  "Net  liabilities  of  discontinued
operations".  The balance remaining unpaid at March 23, 1996, relates to various
state and local tax and payroll liabilities that have not been resolved.
 
5.  REDEEMABLE PREFERRED STOCK
    On April 7, 1995, the  Company issued 426,794 shares  of its voting Class  A
Redeemable  Preferred Stock, which had a redemption value of $2.00 per share, in
exchange for the Company's promissory  note payable to North Central  Personnel,
Inc.  and related accrued  interest which totalled  $853,588 on the  date of the
exchange. The  preferred shares  pay no  dividends and  may be  redeemed at  the
option  of the  holder, in  specified installments  for cash.  On May  29, 1995,
85,359 shares were  redeemed for $170,718.  Subsequently, on July  6, 1995,  the
remaining 341,435 Class A Redeemable Preferred Shares were exchanged for 260,141
Class B Redeemable Preferred Shares, with a redemption price of $2.625 per share
and  an aggregate  redemption value  of $682,870.  In addition,  the Company may
redeem the  Class B  shares in  their  entirety at  its discretion.  During  the
current  fiscal year, 65,035 shares have been redeemed for $170,717. As of March
23, 1996, the remaining  195,106 shares, with an  aggregate redemption value  of
$512,153  may be redeemed  in installments of approximately  65,000 shares on or
after May 29, 1996,  November 29, 1996 and  May 29, 1997, at  the option of  the
holder.  All  outstanding  Class B  shares  become  redeemable in  the  event of
default. Holders of all  classes of voting Redeemable  Preferred Stock have  the
same voting rights as Common Stock.
 
6.  SUBSEQUENT EVENTS
 
    MERGER AGREEMENT
 
    On  February 9, 1996,  AMSERV's Board of Directors  approved and the Company
executed an Agreement  and Plan of  Merger with Star  Multi Care Services,  Inc.
(NASDAQ:SMCS) ("Star") in a stock
 
                                      F-33
<PAGE>
                             AMSERV HEALTHCARE INC.
 
   NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
6.  SUBSEQUENT EVENTS (CONTINUED)
transaction intended to qualify as a tax free reorganization and to be accounted
for  as a  pooling of interests.  The merger is  subject to the  approval of the
shareholders of  both companies,  certain state  and regulatory  approvals,  and
other  customary conditions. The  merger is expected to  be completed during the
summer of 1996.
 
    CONSENT SOLICITATION
 
    By letters dated January 8, February  21, and March 13, 1996, York  Hannover
Pharmaceuticals,  Inc.,  a  wholly-owned  subsidiary  of  Stockbridge Investment
Partners, Inc. ("Stockbridge")  and member of  the Stockbridge Group,  indicated
its  intent to act by written consent  and requested the Board set record dates.
January 29, February 29, and  March 15, 1996, were  established by the Board  as
the respective record dates.
 
    On  or  about  March  7, 1996,  Stockbridge  commenced  its  solicitation of
consents to  remove the  five current  members  of the  Board of  Directors  and
replace  each  member with  a  Stockbridge nominee.  On  March 13,  1996, AMSERV
commenced a  solicitation  of  revocations  of  consent  in  opposition  to  the
Stockbridge solicitation.
 
    CASH TENDER OFFER
 
    On  March 29, 1996, AMSERV received  from Stockbridge a letter purporting to
be an offer to purchase  for $3.00 per share in  cash all outstanding shares  of
AMSERV  Common Stock. According  to the letter,  Stockbridge's proposal would be
structured as a merger to be voted on by AMSERV's shareholders. By letter  dated
April  2, 1996,  AMSERV responded to  Stockbridge's proposal and  stated that in
order for the Board of Directors to properly evaluate the proposal it would need
detailed answers to various questions regarding, among other things, whether the
proposal is subject to  financing and, if so,  the source(s) of such  financing,
and  the proposed structure  of the merger,  including what entity  would be the
survivor. By letter  dated April 12,  1996 addressed to  Batchelder &  Partners,
Inc.,  the Company's financial  advisor, Stockbridge stated  that it intended to
restructure its  proposal  in  the form  of  a  tender offer  for  any  and  all
outstanding  shares  of  the Company  and  that Stockbridge  expected  to submit
evidence of irrevocable financing commitments to the Company on or before  April
24, 1996. As of May 3, 1996, no such information was received.
 
                                      F-34
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
To the Stockholders and Directors
Long Island Nursing Registry, Inc.
 (An S Corporation)
 
    I  have  audited  the  accompanying balance  sheet  of  Long  Island Nursing
Registry, Inc.  (an S  Corporation) as  of  December 31,  1994 and  the  related
statements  of income and accumulated  deficit and cash flows  for the year then
ended. These  financial  statements  are the  responsibility  of  the  Company's
management.  Our  responsibility is  to express  an  opinion on  these financial
statements based on our audit.
 
    I  conducted  my  audit  in  accordance  with  generally  accepted  auditing
standards.  Those standards require that I plan  and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
I believe that my audit provides a reasonable basis for my opinion.
 
    In my opinion, the financial statements referred to above present fairly, in
all material respects, the financial  position of Long Island Nursing  Registry,
Inc.  as of  December 31, 1994,  and the result  of its operations  and its cash
flows for the year then ended  in conformity with generally accepted  accounting
principles.
 
                                             /s/ PAUL JOSEPHSON C.P.A., P.C.
                                               Paul Josephson C.P.A., P.C.
 
Melville, New York
June 5, 1995
 
                                      F-35
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
 
                                 BALANCE SHEET
 
                               DECEMBER 31, 1994
<TABLE>
<CAPTION>
                                          ASSETS
 
<S>                                                                               <C>
CURRENT ASSETS
  Cash..........................................................................  $     100
  Accounts receivable (net of allowance for doubtful accounts of $14,000).......  1,235,515
  Prepaid expenses..............................................................     32,089
                                                                                  ---------
    Total current assets........................................................  1,267,704
                                                                                  ---------
PROPERTY AND EQUIPMENT (note 1)
  Office equipment and furniture................................................    264,888
  Less: Accumulated depreciation................................................    237,875
                                                                                  ---------
                                                                                     27,013
                                                                                  ---------
OTHER ASSETS
  Security deposits.............................................................     36,950
  Cash surrender value of officer's life insurance (net of loans of $156,247)...     16,892
  Intangible assets (net of accumulated amortization of $9,000 in 1994) (note
   3)...........................................................................     81,000
                                                                                  ---------
                                                                                    134,842
                                                                                  ---------
                                                                                  $1,429,559
                                                                                  ---------
                                                                                  ---------
 
<CAPTION>
 
                           LIABILITIES AND STOCKHOLDERS' EQUITY
<S>                                                                               <C>
 
CURRENT LIABILITIES
  Note payable -- bank (note 2).................................................  $ 256,000
  Notes payable -- other (note 3)...............................................     47,534
  Accounts payable and accrued expenses.........................................    416,550
  Payroll taxes payable (note 1)................................................    667,898
  Income taxes payable (note 6).................................................    260,325
  Loans payable, stockholders/officers (note 7).................................    165,095
                                                                                  ---------
    Total current liabilities...................................................  1,813,202
                                                                                  ---------
STOCKHOLDERS' EQUITY
  Common stock, no par value, authorized, issued and outstanding: 200 shares....     20,000
  Accumulated deficit...........................................................   (403,643)
                                                                                  ---------
                                                                                   (383,643)
                                                                                  ---------
                                                                                  $1,429,559
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-36
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
 
                  STATEMENT OF INCOME AND ACCUMULATED DEFICIT
 
                          YEAR ENDED DECEMBER 31, 1994
 
<TABLE>
<S>                                                                               <C>
Health care service income (note 5).............................................  $6,393,666
Direct wages and related costs..................................................  4,597,399
                                                                                  ---------
  Gross profit..................................................................  1,796,267
Operating expenses..............................................................  1,693,795
                                                                                  ---------
Income before income taxes......................................................    102,472
Income taxes (notes 1 and 6)....................................................        325
                                                                                  ---------
  NET INCOME....................................................................    102,147
Accumulated deficit at beginning of year........................................   (505,790)
                                                                                  ---------
Accumulated deficit at end of year..............................................  $(403,643)
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-37
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
 
                            STATEMENT OF CASH FLOWS
 
                          YEAR ENDED DECEMBER 31, 1994
 
<TABLE>
<S>                                                                                <C>
Cash flows from operating activities
  Net income.....................................................................  $ 102,147
                                                                                   ---------
  Adjustments to reconcile net income to net cash provided by operating
   activities
    Depreciation and amortization................................................     23,409
    Changes in assets and liabilities
      Decrease in accounts receivable............................................     88,734
      (Decrease) in accounts payable and accrued expenses........................   (165,691)
      (Decrease) payroll taxes payable...........................................     (6,562)
      Increase in income taxes payable...........................................        325
                                                                                   ---------
        Total adjustments........................................................    (59,785)
                                                                                   ---------
        Net cash provided by operating activities................................     42,362
                                                                                   ---------
Cash flows from investing activities
  Purchase of property and equipment.............................................     (8,396)
  Purchase of intangible asset...................................................    (42,466)
  Repayments of loans to stockholders/officers...................................     25,000
                                                                                   ---------
        Net cash (used by) investing activities..................................    (25,862)
                                                                                   ---------
Cash flows from financing activities
  Loans from stockholders/officers...............................................    170,000
  Repayment of bank note payable.................................................   (186,500)
                                                                                   ---------
        Net cash (used by) financing activities..................................    (16,500)
                                                                                   ---------
Net decrease in cash.............................................................          0
Cash at beginning of year........................................................        100
                                                                                   ---------
Cash at end of year..............................................................  $     100
                                                                                   ---------
                                                                                   ---------
Supplemental disclosures of cash flow information:
  Interest paid..................................................................  $ 100,217
                                                                                   ---------
                                                                                   ---------
  Income taxes paid..............................................................  $     325
                                                                                   ---------
                                                                                   ---------
</TABLE>
 
    The  Company incurred business  acquisition costs of  $90,000 during 1994 of
which $47,534 was financed through the seller.
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-38
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
 
                         NOTES TO FINANCIAL STATEMENTS
 
                               DECEMBER 31, 1994
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    DESCRIPTION OF BUSINESS
 
    The  Company provides  the services of  nurses' aides  primarily to Medicaid
patients in New York State's Suffolk and Nassau counties.
 
    PROPERTY AND EQUIPMENT
 
    Property and  equipment  are  stated  at  cost  and  are  depreciated  using
accelerated methods over the estimated useful lives of the assets.
 
    INCOME TAXES
 
    The  Company has elected to be taxed as an S corporation for Federal and New
York State tax purposes, whereby the income of the Company is taxed directly  to
its stockholders.
 
2.  NOTE PAYABLE -- BANK
    The  Company's  borrowings,  under a  short-term  bank line  of  credit, are
collateralized  by  all  the  assets  of  the  Company  and  guaranteed  by  the
stockholders.
 
    The  Company entered into a restructuring  agreement in May 1994, wherein it
paid $212,500 principal in  order to restructure  its borrowings. The  remaining
balance  has been converted into a five (5)  year term loan, which is payable in
monthly installments of $3,833 commencing in July 1994 to maturity in June 1999,
plus interest at seven percent (7%) per annum. The loan agreement restricts  the
Company as to additional borrowings, commitments, capital expenditures, dividend
payments  and requires that the Company  maintain certain financial balances and
ratios.
 
    The Company is currently in violation of various covenants, and accordingly,
the entire loan has been classified as a current liability in the 1994 financial
statements.
 
3.  INTANGIBLE ASSETS
    The Company purchased the assets  of a home health  care company on July  4,
1994.  The purchase price of $90,000 was allocated one hundred percent (100%) to
intangible assets, which includes  restrictive covenants, goodwill and  customer
lists.  The purchase  price is  being amortized over  sixty (60)  months and was
payable $30,000 down and the balance over twelve (12) months.
 
4.  COMMITMENTS
    The Company's leases for office premises,  which expire at varying dates  to
June  1999, provide for minimum annual rentals plus escalations for increases in
real estate taxes and parking area costs. The Company subleases one (1)  office,
expiring in January 1996. The sub-tenant pays rent directly to the landlord.
 
                                      F-39
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                               DECEMBER 31, 1994
 
4.  COMMITMENTS (CONTINUED)
    Future minimum annual rentals are as follows:
 
<TABLE>
<CAPTION>
YEARS ENDING DECEMBER 31,
- ------------------------------------------------------------------------
<S>                                                                       <C>
1995....................................................................  $  250,136
1996....................................................................      95,507
1997....................................................................      36,472
1998....................................................................      36,597
Thereafter..............................................................      13,123
                                                                          ----------
                                                                             531,835
Less: Rent income from sub-tenant.......................................     220,533
                                                                          ----------
                                                                          $  211,302
                                                                          ----------
                                                                          ----------
</TABLE>
 
    Rent expense for 1994 was $156,137.
 
5.  MAJOR CUSTOMER
    Income  from services to Medicaid recipients was approximately sixty percent
(60%) of total revenues for the year ended December 31, 1994.
 
6.  INCOME TAXES
    As of  April 1,  1991, the  Company has  built-in gain,  as defined  in  the
Internal  Revenue  Service  Code, that  may  result  in a  tax  of approximately
$260,000 at the corporate level. The tax is based on the lesser of the  built-in
gain  or the cash  basis taxable income  reported annually on  the Company's tax
return. The  liability for  built-in gains  tax terminates  on March  31,  2001.
Management  believes that based on current circumstances, the built-in gains tax
may become payable. Therefore, the liability has been reflected in the 1993  and
subsequent financial statements.
 
7.  LOAN PAYABLE, STOCKHOLDER/OFFICERS
    In  1994,  the Company  borrowed $165,095  from a  stockholder. The  loan is
subordinated to the bank  indebtedness. The loan bears  interest at the rate  of
twelve  percent (12%) per annum. As of December  31, 1994, the loan did not have
maturity date.
 
8.  DEPRECIATION EXPENSE
    Total depreciation expense for the year ended December 31, 1994 was $14,409.
 
9.  INTEREST EXPENSE
    Total interest expense for the year ended December 31, 1994 was $100,218.
 
10. SUBSEQUENT EVENT
    During 1995  the Company  sold substantially  all of  its assets,  with  the
exception   of  accounts   receivable.  The  Company   is  currently  collecting
receivables and paying off debts. Prior to and at closing, all funds relative to
the sale of assets were used to pay the bank obligations and delinquent  payroll
taxes.
 
                                      F-40
<PAGE>
                        INDEPENDENT AUDITORS' REPORT ON
                            SUPPLEMENTAL INFORMATION
 
Board of Directors and Stockholders
Long Island Nursing Registry, Inc.
 (An S Corporation)
 
    My  audit for the year  ended December 31, 1994 was  made for the purpose of
forming an  opinion on  the basic  financial statements  taken as  a whole.  The
supplemental  information in the following section  is presented for the purpose
of additional  analysis  and is  not  a required  part  of the  basic  financial
statements.  Such information has not been  subjected to the auditing procedures
applied in the  audits of  the basic  financial statements,  and accordingly  we
express no opinion on it.
 
                                             /s/ PAUL JOSEPHSON C.P.A., P.C.
                                               Paul Josephson C.P.A., P.C.
 
Melville, New York
June 5, 1995
 
                                      F-41
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                               (AN S CORPORATION)
                         SCHEDULE OF OPERATING EXPENSES
                          YEAR ENDED DECEMBER 31, 1994
 
<TABLE>
<S>                                                                               <C>
Officers' salaries..............................................................  $   9,255
Office salaries.................................................................    859,933
Allocated fringe costs..........................................................    117,304
Automobile expenses.............................................................        445
Bank charges....................................................................      5,674
Depreciation and amortization...................................................     23,409
Dues and subscriptions..........................................................      7,130
Equipment rentals...............................................................      5,443
Health facility assessment......................................................      8,281
Insurance.......................................................................     10,122
Interest........................................................................    100,218
Office expenses.................................................................     35,337
Officer's life insurance........................................................      2,620
Penalties.......................................................................    149,665
Professional fees...............................................................     87,138
Recruiting......................................................................     16,157
Rent............................................................................    156,137
Repairs.........................................................................      1,286
Seminars and conferences........................................................      5,491
Sundry..........................................................................     29,426
Telephone.......................................................................     39,749
Travel and entertainment........................................................     18,770
Utilities.......................................................................      4,805
                                                                                  ---------
                                                                                  $1,693,795
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-42
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                                 BALANCE SHEET
                               FEBRUARY 28, 1995
                                   UNAUDITED
 
<TABLE>
<S>                                                                               <C>
                                          ASSETS
Current assets:
  Cash and cash equivalents.....................................................  $     100
  Accounts receivable, less allowance for doubtful accounts.....................  1,506,945
  Prepaid expenses and other current assets.....................................     16,892
                                                                                  ---------
    Total current assets........................................................  1,523,937
Property and equipment, net of accumulated depreciation and amortization (note
 1).............................................................................     25,000
Intangible assets, net of accumulated amortization (note 3).....................     79,000
Deposits........................................................................     36,950
                                                                                  ---------
                                                                                  $1,664,887
                                                                                  ---------
                                                                                  ---------
 
                           LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Short term borrowings (note 2)................................................  $ 303,534
  Note payable (note 10)........................................................    158,302
  Accrued payroll and related expenses..........................................    715,819
  Accounts payable and other accrued expenses...................................    425,455
  Income taxes payable (note 6).................................................    260,325
  Loans payable stockholders/officers (note 7)..................................    165,095
                                                                                  ---------
    Total current liabilities...................................................  2,028,530
                                                                                  ---------
COMMITMENTS AND CONTINGENCIES
Shareholders' equity:
  Common stock, no par value, authorized, issued and outstanding: 200 shares....     20,000
  Accumulated deficit...........................................................   (383,643)
                                                                                  ---------
                                                                                   (363,643)
                                                                                  ---------
                                                                                  $1,664,887
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
                            See accompanying notes.
 
                                      F-43
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                  STATEMENT OF INCOME AND ACCUMULATED DEFICIT
                      NINE MONTHS ENDED FEBRUARY 28, 1995
                                  (UNAUDITED)
 
<TABLE>
<S>                                                                               <C>
Net revenues....................................................................  $4,750,639
                                                                                  ---------
Operating costs and expenses:
  Costs of revenue..............................................................  3,372,953
  Selling, general and administrative...........................................  1,195,189
                                                                                  ---------
                                                                                  4,568,142
                                                                                  ---------
Income from operations..........................................................    182,497
Interest expense, net...........................................................    (75,164)
                                                                                  ---------
Net income......................................................................    107,333
Accumulated deficit at beginning of period......................................   (490,976)
                                                                                  ---------
Accumulated deficit at end of period............................................  $(383,643)
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
                            See accompanying notes.
 
                                      F-44
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                            STATEMENT OF CASH FLOWS
                      NINE MONTHS ENDED FEBRUARY 28, 1995
                                  (UNAUDITED)
 
<TABLE>
<S>                                                                                <C>
Cash flow from operating activities:
  Net income.....................................................................  $ 107,333
                                                                                   ---------
  Adjustments to reconcile net income to net cash used in operating activities:
    Depreciation and amortization................................................     22,217
    Changes in operating assets and liabilities:
      (Increase) decrease in assets:
        Accounts receivable......................................................   (348,458)
        Prepaid expenses and other current assets................................       (995)
        Deposits.................................................................     (4,363)
      Increase (decrease) in liabilities:
        Accrued payroll and related expenses.....................................     87,170
        Accounts payable and other accrued expenses..............................     23,043
                                                                                   ---------
          Total adjustments......................................................   (221,386)
                                                                                   ---------
          Net cash used in operating activities..................................   (114,053)
                                                                                   ---------
Cash flows from investing activities:
  Purchase of property and equipment.............................................     (4,959)
  Purchase of intangible asset...................................................    (42,466)
                                                                                   ---------
          Net cash used in investing activities..................................    (47,425)
                                                                                   ---------
Cash flows from financing activities:
  Proceeds from note payable.....................................................    158,302
                                                                                   ---------
          Net cash provided by financing activities..............................    158,302
                                                                                   ---------
Net decrease in cash and cash equivalents........................................     (3,176)
Cash and cash equivalents at beginning of period.................................      3,276
                                                                                   ---------
Cash and cash equivalents at end of period.......................................  $     100
                                                                                   ---------
                                                                                   ---------
Supplemental disclosures:
  Income taxes paid..............................................................  $     325
                                                                                   ---------
                                                                                   ---------
  Interest paid..................................................................  $  69,287
                                                                                   ---------
                                                                                   ---------
</TABLE>
 
    The company incurred business acquisition costs of $90,000 during the period
of which $47,534 was financed through the seller.
 
                            See accompanying notes.
 
                                      F-45
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                         NOTES TO FINANCIAL STATEMENTS
                               FEBRUARY 28, 1995
                                  (UNAUDITED)
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    DESCRIPTION OF BUSINESS
 
    The  Company provides  the services of  nurses' aides  primarily to Medicaid
patients in New York State's Suffolk and Nassau Counties.
 
    PROPERTY AND EQUIPMENT
 
    Property and  equipment  are  stated  at  cost  and  are  depreciated  using
accelerated methods over the estimated useful lives of the assets.
 
    INCOME TAXES
 
    The  Company has elected to be taxed as an S corporation for Federal and New
York State tax purposes, whereby the income of the Company is taxed directly  to
its shareholders.
 
2.  NOTE PAYABLE -- BANK
    The  Company's  borrowings,  under a  short-term  bank line  of  credit, are
collateralized  by  all  the  assets  of  the  Company  and  guaranteed  by  the
stockholders.
 
    The  Company enter into a restructuring agreement in May 1994, where in they
paid $212,500 principal in order to restructure their borrowings. The  remaining
balance  has been converted into a five (5)  year term loan, which is payable in
monthly installment of $3,833 commencing in July 1994 to maturity in June  1999,
plus  interest at seven percent (7%) per annum. The loan agreement restricts the
Company as to additional borrowings, commitments, capital expenditures, dividend
payments and requires that the  Company maintain certain financial balances  and
ratios.
 
    The Company is currently in violation of various covenants, and accordingly,
the entire loan has been classified as a current liability in the 1994 financial
statements.
 
3.  INTANGIBLE ASSETS
    The  Company purchased the assets  of a home health  care company on July 4,
1994. The purchase price of $90,000 was allocated one hundred percent (100%)  to
intangible  assets, which includes restrictive  covenants, goodwill and customer
lists. The purchase  price is  being amortized over  sixty (60)  months and  was
payable $30,000 down and the balance over twelve (12) months.
 
4.  COMMITMENTS
    The  Company's leases for office premises,  which expire at various dates to
June 1999, provide for minimum annual  rentals plus escalation for increases  in
real  estate taxes and parking area costs. The Company subleases one (1) office,
expiring in January 1996. The sub-tenant pays rent directly to the landlord.
 
                                      F-46
<PAGE>
                       LONG ISLAND NURSING REGISTRY, INC.
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                               FEBRUARY 28, 1995
                                  (UNAUDITED)
 
4.  COMMITMENTS (CONTINUED)
    Future minimum annual rentals are as follows:
 
<TABLE>
<S>                                                                 <C>
Year ending December 31,
1995..............................................................  $ 250,136
1996..............................................................     95,507
1997..............................................................     36,472
1998..............................................................     36,597
Thereafter........................................................     13,123
                                                                    ---------
                                                                      531,835
Less: Rent income from sub-tenant.................................    220,533
                                                                    ---------
                                                                    $ 221,302
                                                                    ---------
                                                                    ---------
</TABLE>
 
    Rent expense  for  the nine  months  ended February  28,  1995  approximated
$188,000.
 
5.  MAJOR CUSTOMER
    Income  from services to Medicaid recipients was approximately sixty percent
(60%) of total revenues for the nine months ended February 28, 1995.
 
6.  INCOME TAXES
    As of April  1, 1991, the  Company has a  built-in gain, as  defined in  the
Internal  Revenue  Service  Code, that  may  result  in a  tax  of approximately
$260,000 at the corporate level. The tax is based on the lesser of the  built-in
gain  or the cash  basis taxable income  reported annually on  the Company's tax
return. The  liability for  built-in gains  tax terminates  on March  31,  2001.
Management  believes that based on current circumstances, the built-in gains tax
may become payable. Therefore, the liability has been reflected in the 1993  and
subsequent financial statements.
 
7.  LOAN PAYABLE, STOCKHOLDERS/OFFICERS
    In  1994,  the Company  borrowed $165,095  from a  stockholder. The  loan is
subordinated to the bank  indebtedness. The loan bears  interest at the rate  of
twelve  (12%)  per annum.  As of  February 28,  1995,  the loan  did not  have a
maturity date.
 
8.  DEPRECIATION EXPENSE
    Total depreciation expense for the nine  months ended February 28, 1995  was
approximately $11,000.
 
9.  INTEREST EXPENSE
    Total  interest  expense for  the nine  months ended  February 28,  1995 was
approximately $76,000.
 
SUBSEQUENT EVENT
 
    During 1995  the Company  sold substantially  all of  its assets,  with  the
exception   of  accounts   receivable.  The  Company   is  currently  collecting
receivables and paying off debts. Prior to and at closing, all funds relative to
the sale of assets were used to pay the bank obligations and delinquent  payroll
taxes. The acquiring Company advanced $158,302 to the Company to satisfy certain
payroll tax liabilities.
 
                                      F-47
<PAGE>
                                                                      APPENDIX A
 
                          AGREEMENT AND PLAN OF MERGER
                                     AMONG
                         STAR MULTI CARE SERVICES, INC.
                             AHI ACQUISITION CORP.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                          DATED AS OF FEBRUARY 9, 1996
                          AS AMENDED ON JULY 18, 1996
<PAGE>
                FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER
 
    FIRST AMENDMENT (the "First Amendment") to Agreement and Plan of Merger (the
"Original  Agreement")  dated  as of  February  9,  1996 among  STAR  MULTI CARE
SERVICES, INC.,  a  New York  corporation  ("Star"), AHI  ACQUISITION  CORP.,  a
Delaware  corporation and a wholly-owned subsidiary  of Star ("Merger Sub"), and
AMSERV HEALTHCARE INC., a Delaware corporation ("Amserv").
 
    WHEREAS, each of Star, Merger Sub  and Amserv has entered into the  Original
Agreement and now desires to make certain changes to said Original Agreement;
 
    WHEREAS,  the  Boards  of Directors  of  Star,  Merger Sub  and  Amserv have
approved the  changes  to  the  Original  Agreement  set  forth  in  this  First
Amendment.
 
    NOW,  THEREFORE, in consideration of the mutual representations, warranties,
covenants, agreements  and  conditions  herein,  the  parties  hereby  agree  as
follows:
 
    1.   Section  5.17 is  hereby deleted  in its  entirety and  replaced by the
following:
 
        "5.17 Directors of Star. Star  agrees that promptly after the  Effective
    Time,  Star shall take such  reasonable action as may  be necessary to cause
    Melvin L. Katten to be appointed to the Board of Directors of Star and to be
    nominated for election by the shareholders of Star to such Board at each  of
    the  next two annual  meetings of such  shareholders following the Effective
    Time for service on such Board until the next such annual meeting  following
    such two annual meetings."
 
    2.   Section 7.2(a)  is hereby deleted  in its entirety  and replaced by the
following:
 
        "(a) The Merger shall not have  been consummated by September 15,  1996,
    unless such failure of consummation is due to the failure of the terminating
    party  to perform or observe any  covenant, agreement or condition hereof to
    be performed or observed by it at or before the Closing Date;"
 
    3.   Except as  expressly  amended by  this  First Amendment,  the  Original
Agreement  and all of its terms, covenants, conditions and provisions are hereby
ratified and confirmed  in all  respects and shall  continue in  full force  and
effect.
 
    IN  WITNESS WHEREOF, the parties hereto  have caused this First Amendment to
be signed by  their respective officers,  thereunto duly authorized,  as of  the
18th day of July, 1996.
 
<TABLE>
<S>                                           <C>
AMSERV HEALTHCARE INC.                        STAR MULTI CARE SERVICES, INC.
 
By:           /s/ EUGENE J. MORA              By:          /s/ STEPHEN STERNBACH
- -------------------------------------------   -------------------------------------------
                      Eugene J. Mora                       Stephen Sternbach
      Chairman and Chief Executive Officer        Chairman and Chief Executive Officer
 
                                              AHI ACQUISITION CORP.
 
                                              By:          /s/ STEPHEN STERNBACH
                                              -------------------------------------------
                                                           Stephen Sternbach
                                                  Chairman and Chief Executive Officer
</TABLE>
<PAGE>
                          AGREEMENT AND PLAN OF MERGER
                                     AMONG
                         STAR MULTI CARE SERVICES, INC.
                             AHI ACQUISITION CORP.
                                      AND
                             AMSERV HEALTHCARE INC.
 
                          DATED AS OF FEBRUARY 9, 1996
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                 PAGE
                                                                                                               ---------
<S>                <C>        <C>                                                                              <C>
ARTICLE I          THE MERGER................................................................................        A-1
                                                                                                                     A-1
                   1.1        The Merger.....................................................................
                                                                                                                     A-1
                   1.2        Closing........................................................................
                                                                                                                     A-1
                   1.3        Effective Time.................................................................
                                                                                                                     A-1
                   1.4        Effect of Merger...............................................................
                                                                                                                     A-2
                   1.5        Certificate of Incorporation and Bylaws........................................
                                                                                                                     A-2
                   1.6        Directors and Officers.........................................................
                                                                                                                     A-2
                   1.7        Tax Consequences...............................................................
                                                                                                                     A-2
                   1.8        Pooling of Interests...........................................................
 
ARTICLE II         CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES........................................        A-2
                                                                                                                     A-2
                   2.1        Share Consideration; Conversion or Cancellation of Shares in the Merger........
                                                                                                                     A-3
                   2.2        Payment for Shares in the Merger...............................................
                                                                                                                     A-4
                   2.3        Exchange Agent.................................................................
                                                                                                                     A-4
                   2.4        Fractional Shares..............................................................
                                                                                                                     A-5
                   2.5        Transfer of Shares After the Effective Time....................................
                                                                                                                     A-5
                   2.6        Further Assurances.............................................................
 
ARTICLE III        REPRESENTATIONS AND WARRANTIES OF STAR AND MERGER SUB.....................................
                                                                                                                     A-5
                   3.1        Corporate Organization.........................................................
                                                                                                                     A-6
                   3.2        Capital Stock..................................................................
                                                                                                                     A-6
                   3.3        Options or Other Rights........................................................
                                                                                                                     A-6
                   3.4        Authority Relative to this Agreement...........................................
                                                                                                                     A-6
                   3.5        Star Common Stock..............................................................
                                                                                                                     A-6
                   3.6        No Violation...................................................................
                                                                                                                     A-7
                   3.7        Compliance with Laws...........................................................
                                                                                                                     A-7
                   3.8        Financial Statements and Reports...............................................
                                                                                                                     A-8
                   3.9        Absence of Certain Changes or Events...........................................
                                                                                                                     A-8
                   3.10       Litigation.....................................................................
                                                                                                                     A-8
                   3.11       Insurance......................................................................
                                                                                                                     A-8
                   3.12       Medicare/Medicaid Participation; Accreditation.................................
                                                                                                                     A-9
                   3.13       Questionable Payments..........................................................
                                                                                                                     A-9
                   3.14       Pooling of Interests...........................................................
                                                                                                                     A-9
                   3.15       Personnel Status...............................................................
                                                                                                                     A-9
                   3.16       Representations Complete.......................................................
                                                                                                                     A-9
                   3.17       Brokers........................................................................
 
ARTICLE IV         REPRESENTATIONS AND WARRANTIES OF AMSERV..................................................        A-9
                                                                                                                     A-9
                   4.1        Corporate Organization.........................................................
                                                                                                                    A-10
                   4.2        Capital Stock..................................................................
                                                                                                                    A-10
                   4.3        Options or Other Rights........................................................
                                                                                                                    A-10
                   4.4        Authority Relative to Agreement................................................
                                                                                                                    A-10
                   4.5        No Violation...................................................................
                                                                                                                    A-11
                   4.6        Compliance with Laws...........................................................
                                                                                                                    A-11
                   4.7        Litigation.....................................................................
                                                                                                                    A-11
                   4.8        Financial Statements and Reports...............................................
                                                                                                                    A-12
                   4.9        Absence of Certain Changes or Events...........................................
                                                                                                                    A-12
                   4.10       Employee Benefit Plans and Employment Matters..................................
</TABLE>
 
                                       i
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                 PAGE
                                                                                                               ---------
                                                                                                                    A-13
                   4.11       Labor Matters..................................................................
<S>                <C>        <C>                                                                              <C>
                                                                                                                    A-13
                   4.12       Insurance......................................................................
                                                                                                                    A-14
                   4.13       Environmental Matters..........................................................
                                                                                                                    A-14
                   4.14       Tax Matters....................................................................
                                                                                                                    A-14
                   4.15       Intellectual Property..........................................................
                                                                                                                    A-15
                   4.16       Related Party Transactions.....................................................
                                                                                                                    A-15
                   4.17       No Undisclosed Material Liabilities............................................
                                                                                                                    A-15
                   4.18       No Default.....................................................................
                                                                                                                    A-15
                   4.19       Title to Properties; Encumbrances..............................................
                                                                                                                    A-16
                   4.20       Contracts......................................................................
                                                                                                                    A-17
                   4.21       Medicare/Medicaid Participation; Accreditation.................................
                                                                                                                    A-17
                   4.22       Rate Tables and Reimbursement..................................................
                                                                                                                    A-17
                   4.23       Relationships..................................................................
                                                                                                                    A-17
                   4.24       Employees......................................................................
                                                                                                                    A-17
                   4.25       Questionable Payments..........................................................
                                                                                                                    A-17
                   4.26       Pooling of Interests...........................................................
                                                                                                                    A-17
                   4.27       Representations Complete.......................................................
                                                                                                                    A-18
                   4.28       Brokers........................................................................
 
ARTICLE V          COVENANTS AND AGREEMENTS..................................................................       A-18
                                                                                                                    A-18
                   5.1        Joint Proxy Statement/Prospectus; Registration Statement; Stockholders'
                               Meeting.......................................................................
                                                                                                                    A-19
                   5.2        Conduct of the Business of Amserv Prior to the Effective Time..................
                                                                                                                    A-20
                   5.3        Access to Properties and Records...............................................
                                                                                                                    A-20
                   5.4        No Solicitation, Etc...........................................................
                                                                                                                    A-21
                   5.5        Employee Benefit Plans.........................................................
                                                                                                                    A-21
                   5.6        Treatment of Options...........................................................
                                                                                                                    A-22
                   5.7        Existing Agreements............................................................
                                                                                                                    A-22
                   5.8        Confidentiality................................................................
                                                                                                                    A-23
                   5.9        Reasonable Best Efforts........................................................
                                                                                                                    A-23
                   5.10       Certification of Stockholder Vote..............................................
                                                                                                                    A-23
                   5.11       Mora Agreements................................................................
                                                                                                                    A-23
                   5.12       Affiliate Letters..............................................................
                                                                                                                    A-24
                   5.13       Listing Application............................................................
                                                                                                                    A-24
                   5.14       Supplemental Disclosure Schedules..............................................
                                                                                                                    A-24
                   5.15       No Action......................................................................
                                                                                                                    A-24
                   5.16       Conduct of Business of Merger Sub..............................................
                                                                                                                    A-24
                   5.17       Directors of Star..............................................................
                                                                                                                    A-24
                   5.18       Notification of Certain Matters; Delivery of Financial Information.............
                                                                                                                    A-25
                   5.19       Class B Preferred Shares.......................................................
                                                                                                                    A-25
                   5.20       Changes in Capital Stock.......................................................
                                                                                                                    A-25
                   5.21       Pooling; Tax-free Nature.......................................................
 
ARTICLE VI         CONDITIONS PRECEDENT......................................................................       A-25
                                                                                                                    A-25
                   6.1        Conditions to Each Party's Obligation to Effect the Merger.....................
                                                                                                                    A-25
                   6.2        Conditions to the obligation of Amserv to Effect the Merger....................
                                                                                                                    A-26
                   6.3        Conditions to the obligations of Star and Merger Sub to Effect the Merger......
 
ARTICLE VII        TERMINATION...............................................................................       A-27
                                                                                                                    A-27
                   7.1        Termination by Mutual Consent..................................................
</TABLE>
 
                                       ii
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                 PAGE
                                                                                                               ---------
                                                                                                                    A-28
                   7.2        Termination by Either Star or Amserv...........................................
<S>                <C>        <C>                                                                              <C>
                                                                                                                    A-28
                   7.3        Termination by Amserv..........................................................
                                                                                                                    A-29
                   7.4        Termination by Star............................................................
                                                                                                                    A-29
                   7.5        Effect of Termination and Abandonment..........................................
 
ARTICLE VIII       MISCELLANEOUS.............................................................................       A-29
                                                                                                                    A-29
                   8.1        Amendment......................................................................
                                                                                                                    A-29
                   8.2        Waiver.........................................................................
                                                                                                                    A-29
                   8.3        Survival.......................................................................
                                                                                                                    A-30
                   8.4        Expenses and Fees..............................................................
                                                                                                                    A-30
                   8.5        Notices........................................................................
                                                                                                                    A-30
                   8.6        Headings.......................................................................
                                                                                                                    A-30
                   8.7        Publicity......................................................................
                                                                                                                    A-31
                   8.8        Entire Agreement...............................................................
                                                                                                                    A-31
                   8.9        Assignment.....................................................................
                                                                                                                    A-31
                   8.10       Counterparts...................................................................
                                                                                                                    A-31
                   8.11       Invalidity; Severability.......................................................
                                                                                                                    A-31
                   8.12       Governing Law..................................................................
 
                                                        EXHIBITS
Exhibit A          Form of Affiliate Letters
Exhibit B          Opinion of Parker Chapin Flattau & Klimpl, LLP
Exhibit C          Opinion of Latham & Watkins
</TABLE>
 
                                      iii
<PAGE>
                          AGREEMENT AND PLAN OF MERGER
 
    AGREEMENT  AND PLAN  OF MERGER  ("Agreement") dated  as of  February 9, 1996
among STAR  MULTI CARE  SERVICES, INC.,  a New  York corporation  ("Star"),  AHI
ACQUISITION  CORP., a Delaware corporation and a wholly-owned subsidiary of Star
("Merger Sub"), and AMSERV HEALTHCARE INC., a Delaware corporation ("Amserv").
 
    WHEREAS, the  Boards  of Directors  of  Star,  Merger Sub  and  Amserv  deem
advisable  and in the best interests of their respective stockholders the merger
of Merger Sub with and into Amserv (the "Merger") upon the terms and  conditions
set forth herein and in accordance with the General Corporation Law of the State
of  Delaware (the  "DGCL") (Amserv, following  the effectiveness  of the Merger,
being hereinafter sometimes referred to as the "Surviving Corporation");
 
    WHEREAS, the  Boards  of Directors  of  Star,  Merger Sub  and  Amserv  have
approved  the Merger pursuant to  this Agreement, upon the  terms and subject to
the conditions set forth herein;
 
    WHEREAS, for federal  income tax purposes,  it is intended  that the  Merger
shall  qualify as a reorganization  within the meaning of  Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code");
 
    WHEREAS, in order  to induce Amserv  to enter into  this Agreement,  Stephen
Sternbach,  a  stockholder of  Star, has  agreed to  execute a  voting agreement
simultaneously with the execution  of this Agreement  and, pursuant thereto,  to
grant a proxy to vote in favor of the Merger;
 
    WHEREAS,  it is  intended that the  Merger shall be  recorded for accounting
purposes as a pooling of interests.
 
    NOW, THEREFORE, in consideration of the mutual representations,  warranties,
covenants, agreements and conditions contained herein, and in order to set forth
the  terms and conditions of the Merger and the method of carrying the same into
effect, the parties hereby agree as follows:
 
                                   ARTICLE I
                                   THE MERGER
 
    1.1  THE MERGER.  Upon the terms and conditions hereinafter set forth and in
accordance with the  DGCL, at the  Effective Time (as  defined in Section  1.3),
Merger  Sub shall  be merged  with and  into Amserv  and thereupon  the separate
existence of Merger Sub shall cease,  and Amserv, as the Surviving  Corporation,
shall continue to exist under and be governed by the DGCL.
 
    1.2   CLOSING.  Subject  to the terms and  conditions of this Agreement, the
closing of the Merger (the "Closing") shall take place at the offices of  Parker
Chapin  Flattau & Klimpl, LLP,  1211 Avenue of the  Americas, New York, New York
10036 as promptly as practicable after satisfaction or waiver of the  conditions
set  forth in  Article VI, or  at such  other location, time  or date  as may be
agreed to in writing by the parties hereto. The date on which the Closing occurs
is hereinafter referred to as the "Closing Date."
 
    1.3  EFFECTIVE  TIME.   If all  the conditions to  the Merger  set forth  in
Article  VI shall have been satisfied or  waived in accordance herewith and this
Agreement shall not have been terminated as provided in Article VII, the parties
hereto shall cause a Certificate of  Merger meeting the requirements of  Section
251  of  the DGCL  to be  properly executed  and filed  in accordance  with such
Section on the Closing Date.  The Merger shall become  effective at the time  of
filing  of the Certificate of Merger with the Secretary of State of the State of
Delaware in accordance with  the DGCL or  at such other  time which the  parties
hereto  shall have agreed  upon and designated  in such filing  as the effective
time of the Merger (the "Effective Time").
 
    1.4  EFFECT OF MERGER.  After the Effective Time, pursuant to the DGCL,  the
separate  existence of Merger Sub will cease and the Surviving Corporation shall
succeed, without other transfer,  to all the rights  and property of Merger  Sub
and  shall be subject to all the debts and liabilities of Merger Sub in the same
manner as if the Surviving Corporation had itself incurred them.
 
                                      A-1
<PAGE>
    1.5  CERTIFICATE OF  INCORPORATION AND BYLAWS.   At the Effective Time,  the
Certificate of Incorporation of Amserv shall be the Certificate of Incorporation
of  the Surviving Corporation and the Bylaws of  Amserv as in effect on the date
hereof shall be the Bylaws of the Surviving Corporation.
 
    1.6  DIRECTORS AND OFFICERS.   The persons who  are directors of Merger  Sub
immediately  prior to the Effective Time  shall, after the Effective Time, serve
as the directors of the Surviving  Corporation, to serve until their  successors
have  been  duly elected  and qualified  in accordance  with the  Certificate of
Incorporation and  Bylaws of  the  Surviving Corporation.  The persons  who  are
officers  of Merger Sub immediately prior to the Effective Time shall, after the
Effective Time,  serve as  the  officers of  the  Surviving Corporation  at  the
pleasure of the Board of Directors of the Surviving Corporation.
 
    1.7   TAX CONSEQUENCES.   It is intended that  the Merger shall constitute a
reorganization described in Sections 368(a)(1)(A)  and 368(a)(2)(E) of the  Code
and  that this  Agreement shall  constitute a  "plan of  reorganization" for the
purposes of Section 368  of the Code. The  parties shall treat the  transactions
contemplated hereby consistently with such intention.
 
    1.8   POOLING OF INTERESTS.  It is  the intention of the parties hereto that
the Merger will  be treated  for financial reporting  purposes as  a pooling  of
interests.   The  parties  shall  treat  the  transactions  contemplated  hereby
consistently with such intention.
 
                                   ARTICLE II
               CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES
 
    2.1   SHARE  CONSIDERATION; CONVERSION  OR  CANCELLATION OF  SHARES  IN  THE
MERGER.  Subject to the provisions of this Article II, at the Effective Time, by
virtue of the Merger and without any action on the part of the holders thereof:
 
    (a)  Each issued and outstanding  share of the common  stock, $.01 par value
(including the rights attached thereto to purchase Class C Preferred Shares  (as
hereinafter  defined)), of  Amserv (the "Amserv  Common Stock"),  other than (i)
shares of  Amserv Common  Stock  owned of  record by  Star,  or a  wholly  owned
Subsidiary  (as hereinafter defined)  of Star, and (ii)  shares of Amserv Common
Stock that are owned by Amserv as treasury stock (the "Treasury Shares"),  shall
be automatically converted into the right to receive .4090 shares (the "Exchange
Ratio") of the common stock, $.001 par value, of Star (the "Star Common Stock").
If  prior to  the Effective  Time, Star  or Amserv  should split  or combine its
Common Stock, or pay a stock dividend or other stock distribution in its  Common
Stock,  or otherwise change its Common Stock  into any other securities, or make
any other dividend or distribution on its Common Stock, then the Exchange  Ratio
will  be appropriately adjusted to reflect  such split, combination, dividend or
other distribution or change. The Exchange Ratio shall, in each case, be rounded
to the nearest ten-thousandth of a share.
 
    (b) All of the shares of the  Amserv Common Stock to be converted into  Star
Common  Stock pursuant to Section 2.1(a) (the "Amserv Shares") shall cease to be
outstanding, shall be canceled  and retired and shall  cease to exist, and  each
holder  of a certificate representing any  such shares shall thereafter cease to
have any rights with  respect to such  shares, except the  right to receive  for
each  of the shares, upon  the surrender of such  certificate in accordance with
Section 2.2(b), the number of shares  of Star Common Stock specified in  Section
2.01(a)  above (the "Share  Consideration") and cash in  lieu of fractional Star
Common Stock as contemplated  by Section 2.4. The  Class B Preferred Shares  (as
hereinafter  defined)  shall  not  be  automatically  converted  into  any other
security in connection with the Merger.
 
    (c) The issued and outstanding shares of the common stock, $1.00 par  value,
of  Merger  Sub (the  "Merger Sub  Common  Stock") shall  be converted  into one
hundred (100) shares  of fully paid  and nonassessable shares  of common  stock,
$.01  par  value, of  the Surviving  Corporation ("Surviving  Corporation Common
Stock").
 
                                      A-2
<PAGE>
    (d) All shares of Amserv Common Stock  which are owned of record by Star  or
any  wholly owned  Subsidiary of Star  and all  of the Treasury  Shares shall be
canceled and  retired and  cease to  exist, without  any conversion  thereof  or
payment with respect thereto.
 
    (e)  Each  outstanding  option to  purchase  Amserv Common  Stock  (each an,
"Amserv Stock Option") shall be assumed by Star as provided in Section 5.6.
 
    As used in this Agreement, the term "Subsidiary" shall mean any  corporation
of  which at least a  majority of the securities  having by their terms ordinary
voting power  to elect  a majority  of the  Board of  Directors is  directly  or
indirectly  owned or  controlled by  such party  or by  any one  or more  of its
Subsidiaries, or by such  party and one or  more of its Subsidiaries;  provided,
however,  that as used in Sections 3.1,  3.3, 3.6, 3.7, 3.9-3.13, 4.1, 4.5-4.14,
4.16-4.26, 5.2(c)-(f) and 5.15  of this Agreement,  the term "Subsidiary"  shall
also  include any unincorporated organization,  including partnerships and joint
ventures, of which such party or any other Subsidiary of such party is a general
partner (excluding partnerships of which the general partnership interests  held
by  such party, or any Subsidiary of such party, do not constitute a majority of
the voting interests in such partnership) or  at least a majority of the  voting
interests in such organization are directly or indirectly owned or controlled by
such  party or by any one or more of  its Subsidiaries, or such party and one or
more of its Subsidiaries  (such unincorporated organizations being  collectively
referred to herein as the "Joint Ventures");
 
    2.2  PAYMENT FOR SHARES IN THE MERGER.
 
    (a)  At the Effective Time,  Star shall make available  to an exchange agent
selected by Star and reasonably acceptable to Amserv (the "Exchange Agent"), for
the benefit of those  persons who immediately prior  to the Effective Time  were
the  holders of Amserv Shares, a  sufficient number of certificates representing
shares of Star  Common Stock required  to effect the  delivery of the  aggregate
Share  Consideration  required  to  be  issued  pursuant  to  Section  2.1  (the
certificates representing  Star Common  Stock  comprising such  aggregate  Share
Consideration  being  hereinafter  referred  to  as  the  "Exchange  Fund"). The
Exchange Agent shall, pursuant to  irrevocable instructions, deliver the  shares
of  Star Common  Stock contemplated  to be  issued pursuant  to Section  2.1 and
effect the sales  provided for  in Section  2.4 out  of the  Exchange Fund.  The
Exchange Fund shall not be used for any other purpose.
 
    (b)  As soon  as practicable  after the  Effective Time,  the Exchange Agent
shall send a notice and transmittal form to each holder of record of the  Amserv
Shares  immediately  prior to  the Effective  Time advising  such holder  of the
effectiveness of the Merger and the  procedure for surrendering to the  Exchange
Agent  (who  may  appoint  forwarding  agents with  the  approval  of  Star) the
certificate or  certificates  to  be  exchanged  pursuant  to  the  Merger  (the
"Certificates").  Upon the surrender for exchange of certificates, together with
such letter of transmittal  duly completed and  properly executed in  accordance
with  instructions thereto and such other  documents as may be required pursuant
to such  instructions,  the holder  shall  be paid  promptly,  without  interest
thereon   and  subject  to   any  required  withholding   of  taxes,  the  Share
Consideration to which such holder is entitled hereunder, and such  Certificates
shall   forthwith  be  canceled.   Until  so  surrendered   and  exchanged,  the
Certificates shall represent solely the right to receive the Share Consideration
pursuant to Section 2.1 and cash in lieu of fractional shares as contemplated by
Section 2.4, subject to  any required withholding of  taxes. If any payment  for
the  Amserv Shares is to be made to a person other than the person in whose name
the Certificates  for such  shares surrendered  are registered,  it shall  be  a
condition  of the exchange that the person requesting such exchange shall pay to
the Exchange  Agent  any transfer  or  other taxes  required  by reason  of  the
delivery  of such  payment to a  person other  than the registered  owner of the
Certificates surrendered or shall establish to the satisfaction of the  Exchange
Agent  that such tax has been paid or is not applicable. To the extent permitted
by law, former stockholders of record of Amserv shall be entitled to vote, after
the Effective Time,  at any meeting  of Star stockholders,  the number of  whole
shares  of  Star Common  Stock  into which  their  respective Amserv  Shares are
converted, regardless of whether such holders have exchanged their  Certificates
in accordance with this Section 2.2.
 
                                      A-3
<PAGE>
    (c)  No dividends or  other distributions with respect  to Star Common Stock
with a record date after the Effective Time shall be paid to the holders of  any
unsurrendered  Certificates  with respect  to the  shares  of Star  Common Stock
represented thereby and no  cash payment in lieu  of fractional shares shall  be
paid  to any  such holder pursuant  to Section  2.4 until the  surrender of such
Certificates in  accordance with  this Section  2.2. Subject  to the  effect  of
applicable  laws, following surrender  of any such  Certificates, there shall be
paid to the holder of the Certificates representing whole shares of Star  Common
Stock  issued in exchange  therefor, without interest,  (i) at the  time of such
surrender, the amount of any cash payable in lieu of a fractional share of  Star
Common  Stock to which such  holder is entitled pursuant  to Section 2.4 and the
amount of  dividends  or  other  distributions with  a  record  date  after  the
Effective Time theretofore paid with respect to such whole shares of Star Common
Stock,  and (ii)  at the  appropriate payment date,  the amount  of dividends or
other distributions with  a record date  after the Effective  Time but prior  to
such surrender and with a payment date subsequent to such surrender payable with
respect to such whole shares of Star Common Stock.
 
    (d) In the event any Certificates shall have been lost, stolen or destroyed,
upon  the  making of  an  affidavit of  that fact  by  the person  claiming such
Certificate to  be lost,  stolen or  destroyed  and, if  required by  Star,  the
posting  by such person of a  bond in such amount, form  and with such surety as
Star may direct as indemnity against any claim that may be made against it  with
respect  to such Certificate, the Exchange Agent will issue in exchange for such
lost, stolen or destroyed  Certificate the number of  shares of the Star  Common
Stock  and cash in  lieu of fractional shares  deliverable (and unpaid dividends
and distributions) in respect thereof pursuant to this Agreement.
 
    (e) Star, as the  sole stockholder of Merger  Sub, shall, upon surrender  to
the  Surviving Corporation  of Certificates  representing the  Merger Sub Common
Stock, receive a Certificate representing the number of shares of the  Surviving
Corporation Common Stock into which such Merger Sub Common Stock shall have been
converted pursuant to Section 2.1.
 
    (f)  Certificates surrendered for exchange by any person constituting a Rule
145 Affiliate of Amserv (as defined in Section 5.12) shall not be exchanged  for
Certificates  representing Star Common  Stock until Star  has received a written
agreement from such person as provided in Section 5.12.
 
    2.3  EXCHANGE AGENT.  Subject to the agreement of the Exchange Agent,  among
other  things, (i)  the Exchange  Agent shall  maintain the  Exchange Fund  as a
separate fund to be held  for the benefit of the  holders of the Amserv  Shares,
which  shall be promptly  applied by the  Exchange Agent to  making the payments
provided for in Section 2.2, (ii) any portion of the Exchange Fund that has  not
been  paid to holders of the Amserv Shares pursuant to Section 2.2 prior to that
date which is six months from the Effective Time shall be paid to Star, and  any
holders  of Amserv Shares  who shall not have  theretofore complied with Section
2.2 shall thereafter look only  to Star for payment of  the number of shares  of
Star  Common Stock to  which they are  entitled under this  Agreement, (iii) the
Exchange Fund shall not be used for any purpose that is not provided for herein;
and (iv) all  expenses of the  Exchange Agent  shall be paid  directly by  Star.
Promptly  following the date  which is six  months from the  Effective Time, the
Exchange Agent  shall  return  to  Star  all  cash,  securities  and  any  other
instruments  in its  possession relating to  the transactions  described in this
Agreement, and the  Exchange Agent's  duties shall  terminate. Thereafter,  each
holder  of Certificates formerly  representing Amserv Shares  may surrender such
Certificates to Star and (subject to applicable abandoned property, escheat  and
similar  laws) receive in exchange therefor  the Share Consideration and cash in
lieu of fractional shares payable with respect thereto pursuant to Sections  2.1
and  2.4 hereof, without interest, but shall have no greater rights against Star
than may be accorded to general creditors  of Star under the DGCL. The  Exchange
Agent  shall not be  entitled to vote  or exercise any  rights of ownership with
respect to the Star Common Stock held by it from time to time hereunder.
 
    2.4  FRACTIONAL SHARES.  No fractional shares of Star Common Stock shall  be
issued  in the Merger. In lieu of any such fractional securities, each holder of
Amserv Shares who would  otherwise have been entitled  to a fractional share  of
Star  Common Stock upon surrender of  Certificates for exchange pursuant to this
 
                                      A-4
<PAGE>
Article II will  be paid  an amount  in cash  (without interest)  equal to  such
holder's  proportionate interest in the  net proceeds from the  sale or sales in
the open market by  the Exchange Agent,  on behalf of all  such holders, of  the
aggregate  fractional shares  of the Star  Common Stock issued  pursuant to this
Article II. As soon  as practicable following the  Effective Time, the  Exchange
Agent  shall determine the excess  of (i) the number of  full shares of the Star
Common Stock delivered  to the Exchange  Agent by Star  over (ii) the  aggregate
number  of full shares of the Star Common  Stock to be distributed to holders of
Amserv Shares (such  excess being herein  called the "Excess  Shares"), and  the
Exchange Agent, as agent for the former holders of Amserv Shares, shall sell the
Excess  Shares at the prevailing prices on  the Nasdaq National Market. The sale
of the Excess  Shares by  the Exchange  Agent shall  be executed  on the  Nasdaq
National  Market through one or more member  firms of the Nasdaq National Market
and shall be executed in  round lots to the  extent practicable. Star shall  pay
all  commissions,  transfer  taxes and  other  out-of-pocket  transaction costs,
including the  expenses and  compensation  of the  Exchange Agent,  incurred  in
connection  with such sale of Excess Shares. Until the net proceeds of such sale
have been distributed to the former  stockholders of Amserv, the Exchange  Agent
will  hold such proceeds in trust  for such former stockholders (the "Fractional
Securities Fund"). As soon as practicable after the determination of the  amount
of  cash to be paid  to former stockholders of Amserv  in lieu of any fractional
interests, the  Exchange Agent  shall  make available  in accordance  with  this
Agreement such amounts to such former stockholders.
 
    2.5   TRANSFER OF SHARES  AFTER THE EFFECTIVE TIME.   No transfers of Amserv
Shares shall be made on  the stock transfer books of  Amserv after the close  of
business on the day prior to the date of the Effective Time.
 
    2.6    FURTHER ASSURANCES.   If  at any  time after  the Effective  Time the
Surviving Corporation  shall consider  or  be advised  that any  further  deeds,
assignments  or assurances in law or any  other acts are necessary, desirable or
proper (i) to vest, perfect or confirm, of record or otherwise, in the Surviving
Corporation, the title to any property or right of Amserv or Merger Sub acquired
or to be acquired by reason of, or as a result of, the Merger, or (ii) otherwise
to carry out the purposes  of this Agreement, Amserv  and Merger Sub agree  that
the  Surviving Corporation and its proper  officers and directors shall and will
execute and deliver all such deeds, assignments and assurances in law and do all
acts necessary, desirable or  proper to vest, perfect  or confirm title to  such
property  or right in the  Surviving Corporation and otherwise  to carry out the
purposes of this Agreement, and that the proper officers and directors of Amserv
and  Merger  Sub  and  the  proper  officers  and  directors  of  the  Surviving
Corporation  are  fully authorized  in  the name  of  Amserv and  Merger  Sub or
otherwise to take any and all such action.
 
                                  ARTICLE III
             REPRESENTATIONS AND WARRANTIES OF STAR AND MERGER SUB
 
    Star and Merger Sub, jointly and severally, represent and warrant to  Amserv
as follows:
 
    3.1   CORPORATE ORGANIZATION.  Each of  Star and its Subsidiaries (the "Star
Subsidiaries" is  a corporation  duly organized,  validly existing  and in  good
standing  under  the laws  of the  jurisdiction of  its incorporation,  with all
requisite corporate power and authority to own, operate and lease its properties
and to carry on its business as it  is now being conducted, and is qualified  or
licensed  to do business and  is in good standing  in each jurisdiction in which
the failure to be  so qualified or licensed,  individually or in the  aggregate,
would  have a material adverse effect on the condition (financial or otherwise),
results  of  operations,  business,  working  capital,  assets,  liabilities  or
prospects  of  Star and  the Star  Subsidiaries  taken as  a whole  (a "Material
Adverse Effect on Star"). Section 3.1 of the Star disclosure schedule  delivered
by  Star  herewith  (the "Star  Disclosure  Schedule") contains  a  complete and
accurate list  of  all of  the  Star Subsidiaries.  Neither  Star nor  any  Star
Subsidiary  is in violation of any provision of its Certificate of Incorporation
or Bylaws which could have a Material Adverse Effect on Star. Merger Sub has not
engaged in any business nor has it incurred any liabilities or obligations since
it was incorporated other than relating  to this Agreement and the  transactions
contemplated hereby.
 
                                      A-5
<PAGE>
    3.2   CAPITAL STOCK.  As of the date hereof, the authorized capital stock of
Star consists in  its entirety of  (i) 10,000,000 shares  of Star Common  Stock,
$.001  par value, and (ii) 5,000,000 shares of Preferred Stock, $1.00 par value.
As of February 1, 1996, 2,309,675 shares  of Star Common Stock and no shares  of
Preferred  Stock were  issued and outstanding,  (ii) options  to acquire 570,462
shares of Star  Common Stock were  outstanding under all  stock option plans  of
Star, (iii) 1,099,603 shares were reserved for issuance pursuant to all employee
benefit  plans  of Star  and  (iv) warrants  (the  "Star Warrants")  to purchase
112,922 shares of Star Common Stock were outstanding. As of the date hereof, the
authorized capital stock of Merger Sub consists in its entirety of 1,000  shares
of  common  stock,  $1.00  par  value,  of  which  100  shares  are  issued  and
outstanding. All of the outstanding shares of capital stock of each of the  Star
Subsidiaries  are owned beneficially and of record  by Star or a Star Subsidiary
free and clear of all liens, charges and encumbrances of any nature. All of  the
outstanding  shares of capital  stock of Star,  Merger Sub and  each of the Star
Subsidiaries have been validly issued and are fully paid and nonassessable.  The
holders of the Star Warrants have exercised rights thereunder to have the shares
of  Star Common Stock issuable thereunder registered under the Securities Act of
1933 (the "Securities Act").
 
    3.3  OPTIONS OR OTHER  RIGHTS.  Except as  disclosed in Section 3.2  hereto,
there   is  no  outstanding  right,  subscription,  warrant,  call,  unsatisfied
preemptive right,  option or  other  agreement or  arrangement  of any  kind  to
purchase  or otherwise to  receive from Star  or any Star  Subsidiary any of the
outstanding authorized  but unissued,  unauthorized or  treasury shares  of  the
capital stock or any other security of Star or any Star Subsidiary, and there is
no  outstanding security of  any kind convertible into  or exchangeable for such
capital stock. No options or rights to acquire equity securities granted by Star
have provisions which accelerate the vesting  or right to exercise such  options
or  rights or terminate any  repurchase rights of Star  upon the consummation of
the Merger.
 
    3.4  AUTHORITY RELATIVE TO THIS AGREEMENT.  Each of Star and Merger Sub  has
full  corporate power and authority to execute and deliver this Agreement and to
consummate the transactions contemplated on  its part hereby. The execution  and
delivery  of this Agreement by each of  Star and Merger Sub and the consummation
of the transactions contemplated on its part hereby have been duly authorized by
their respective Board  of Directors,  and, other  than the  approval of  Star's
stockholders  as provided in Section 5.1  hereof, no other corporate proceedings
on the part  of Star  or Merger  Sub are necessary  to the  consummation of  the
transactions  contemplated  on its  part hereby.  This  Agreement has  been duly
executed and delivered by each of Star and Merger Sub, and constitutes a  legal,
valid and binding obligation of each of Star and Merger Sub, enforceable against
each  of  them in  accordance with  its terms,  except to  the extent  that such
enforceability  may   be   limited   by   applicable   bankruptcy,   insolvency,
reorganization  or  other laws  affecting the  enforcement of  creditors' rights
generally or by general equity principles.
 
    3.5  STAR COMMON  STOCK.  The shares  of Star Common Stock  to be issued  in
connection  with  the  Merger have  been  duly  authorized and,  when  issued as
contemplated hereby at the  Effective Time, will be  validly issued, fully  paid
and nonassessable, and not subject to any preemptive rights.
 
    3.6    NO  VIOLATION.    The execution,  delivery  and  performance  of this
Agreement by each of Star and Merger Sub and the consummation by each of them of
the transactions contemplated hereby will not  (i) violate or conflict with  any
provision  of any law applicable to Star or  any Star Subsidiary or by which any
of their  property  or assets  are  bound,  (ii) require  the  consent,  waiver,
approval,  license  or  authorization of  or  any  filing by  Star  or  any Star
Subsidiary with any public authority (other than (A) the filing of a  pre-merger
notification  report under  The Hart-Scott-Rodino Antitrust  Improvements Act of
1976, as amended, and the rules and regulations promulgated thereunder (the "HSR
Act") and the  expiration of the  applicable waiting period,  (B) in  connection
with  or in  compliance with  the provisions of  the Securities  Exchange Act of
1934, as amended (the "Exchange Act"), the Securities Act, the DGCL, the  Bylaws
of  the National  Association of Securities  Dealers, Inc. or  the "takeover" or
"blue sky" laws of various states, (C) the approval by the New York State Public
Health Council required pursuant to Section 3611-a of the New York State  Public
Health  Law and the rules  and regulations thereunder and  (D) any other filings
and approvals  expressly  contemplated  by this  Agreement)  or  (iii)  violate,
conflict   with,   result  in   a  breach   of  or   the  acceleration   of  any
 
                                      A-6
<PAGE>
obligation under, or constitute a default (or an event which with notice or  the
lapse  of time or both would become a default) under or give to others any right
of, or result in any,  termination, amendment, acceleration or cancellation  of,
or  loss of any benefit or creation of a right of first refusal or result in the
creation of a lien or other encumbrance on any property or asset of Star or  any
Star  Subsidiary pursuant  to or  under any provision  of any  charter or bylaw,
indenture, mortgage,  lien,  lease, license,  agreement,  contract,  instrument,
order,  judgment, ordinance, Star Permit (as  defined below), law, regulation or
decree to which Star or any Star Subsidiary  is subject or by which Star or  any
Star  Subsidiary or any of their property  or assets are bound, except where the
failure to give such notice, make  such filings, or obtain such  authorizations,
consents,  waivers, licenses or approvals,  or where such violations, conflicts,
breaches, defaults, terminations, amendments, accelerations, cancellations, loss
of rights, liens or  encumbrances, individually or in  the aggregate, would  not
have  a Material Adverse Effect on Star or  on Star's or Merger Sub's ability to
consummate the transactions contemplated hereby.
 
    3.7  COMPLIANCE WITH LAWS.
 
    (a) Star and each  Star Subsidiary hold all  material licenses, permits  and
other  authorizations  necessary to  conduct  its business  (collectively, "Star
Permits"), are certified as providers under all applicable Medicare and Medicaid
programs to the extent required to be  so certified, and are in compliance  with
all  Star Permits  and all  federal, state  and other  laws, rules, regulations,
ordinances and orders governing its business, including, without limitation, the
requirements, guidelines, rules and regulations of Medicare, Medicaid and  other
third-party  reimbursement programs, except where the  failure to hold such Star
Permits and other authorizations or  to so comply would  not be material to  the
financial  condition, results of operations, business  or properties of Star and
the Star Subsidiaries taken as a whole.  The Star Permits are in full force  and
effect.
 
    (b)  All health care personnel  employed by Star or  any Star Subsidiary are
properly licensed  to  the  extent  required to  perform  the  duties  of  their
employment  in each jurisdiction  where such duties  are performed, except where
the failure to be so licensed, would not be material to the financial condition,
results of operations, business or properties of Star and the Star  Subsidiaries
taken as a whole.
 
    (c)  No action or proceeding is  pending or, to Star's knowledge, threatened
that may result in the suspension, revocation or termination of any Star Permit,
the  issuance  of  any  cease-and-desist   order,  or  the  imposition  of   any
administrative  or judicial sanction,  and neither Star  nor any Star Subsidiary
has received  any notice  from  any governmental  authority  in respect  of  the
suspension,  revocation or termination of any Star  Permit, or any notice of any
intention to conduct any investigation or institute any proceeding, in any  such
case   where   such  suspension,   revocation,  termination,   order,  sanction,
investigation or  proceeding  would  be material  to  the  financial  condition,
results  of operations, business or properties of Star and the Star Subsidiaries
taken as a whole.
 
    (d) Neither Star nor any Star Subsidiary has received notice that  Medicare,
Medicaid  or  any other  third-party reimbursement  program  has any  claims for
disallowance of costs against any of them which could result in material offsets
against future reimbursement  or recovery  of prior payments,  which offsets  or
recoveries have not been reserved for in Star's financial statements.
 
    3.8   FINANCIAL STATEMENTS AND  REPORTS.  Star has  made available to Amserv
true and complete copies of (i) its Annual Report on Form 10-K as filed with the
Securities and Exchange Commission  (the "Commission"), for  the year ended  May
31,  1995 (the  "Star Form 10-KSB"),  (ii) all registration  statements filed by
Star and declared effective under the Securities Act since January 1, 1993,  and
(c) all other reports, statements and registration statements (including Current
Reports  on Form 8-K) filed by it with the Commission since January 1, 1993. The
reports, statements and registration statements  referred to in the  immediately
preceding  sentence (including, without limitation,  any financial statements or
schedules or other information, included  or incorporated by reference  therein)
are  referred  to  in  this Agreement  as  the  "Star SEC  Filings."  As  of the
respective times such documents were filed or, as applicable, became  effective,
the  Star SEC Filings complied as to form and content, in all material respects,
with the requirements of the
 
                                      A-7
<PAGE>
Securities Act and  the Exchange  Act, as  the case may  be, and  the rules  and
regulations  promulgated thereunder, and did not contain any untrue statement of
a material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading. The financial statements of Star  included
in  the Star  SEC Filings  were prepared  in accordance  with generally accepted
accounting principles (as in effect from  time to time) applied on a  consistent
basis  and (except as may be indicated  therein or in the notes thereto) present
fairly the consolidated financial  position, consolidated results of  operations
and  consolidated cash flows of  Star and the Star  Subsidiaries as of the dates
and for  the  periods  indicated  subject, in  the  case  of  unaudited  interim
consolidated  financial statements, to normal recurring year-end adjustments and
any other adjustments described therein.
 
    3.9  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since May 31, 1995 and except as
disclosed in the Star SEC Filings made through the date hereof, the business  of
Star  and of each  of the Star  Subsidiaries has been  conducted in the ordinary
course, and there has not been (i) any material adverse change in the  condition
(financial  or  otherwise), results  of  operations, business,  working capital,
assets, liabilities or prospects of Star  and the Star Subsidiaries, taken as  a
whole;  (ii) any indebtedness incurred by Star  or any Star Subsidiary for money
borrowed; (iii) any material transaction  or commitment, except in the  ordinary
course of business or as contemplated by this Agreement, entered into by Star or
any  of the  Star Subsidiaries;  (iv) any  damage, destruction  or loss, whether
covered by insurance or not, which, individually or in the aggregate, would have
a Material Adverse Effect on Star; (v) any declaration, setting aside or payment
of any dividend (whether  in cash, securities or  property) with respect to  the
Star Common Stock; (vi) any material agreement to acquire any assets or stock or
other  interests  of any  third party;  (vii) any  increase in  the compensation
payable or to become payable  by Star or any  Star Subsidiary to any  employees,
officers, directors, or consultants or in any bonus, insurance, welfare, pension
or  other employee benefit plan, payment or arrangement made to, for or with any
such employee,  officer,  director or  consultant  (other than  as  provided  in
employment  agreements, consulting agreements  and welfare and  benefit plans in
existence as of the date hereof,  and except for increases consistent with  past
practice); (viii) any material revaluation by Star or any Star Subsidiary of any
asset (including, without limitation, any writing down of the value of inventory
or  writing off of  notes or accounts  receivable); (ix) any  material change by
Star in accounting principles or methods except insofar as may be required by  a
change  in generally accepted accounting principles;  (x) any mortgage or pledge
of any  of the  assets or  properties  of Star  or any  Star Subsidiary  or  the
subjection  of any of the assets or properties of Star or any Star Subsidiary to
any material  liens, charges,  encumbrances,  imperfections of  title,  security
interest, options or rights or claims of other with respect thereto; or (xi) any
assumption or guarantee by Star or an Star Subsidiary of the indebtedness of any
person or entity.
 
    3.10   LITIGATION.  Except as may be  disclosed in the Star SEC Filings made
as of the date  hereof, there are no  suits, arbitrations, mediations,  actions,
proceedings,  unfair  labor practice  complaints  or grievances  pending  or, to
Star's knowledge, threatened against Star or any Star Subsidiary or with respect
to any  property  or  asset  of  any  of  them  before  any  court,  arbitrator,
administrator   or  governmental   or  regulatory   authority  or   body  which,
individually or in the aggregate, would have a Material Adverse Effect on  Star.
Neither Star nor any Star Subsidiary nor any property or asset of any of them is
subject  to any order, judgment, injunction  or decree which, individually or in
the aggregate, would have a Material Adverse Effect on Star.
 
    3.11  INSURANCE.  Star and the Star Subsidiaries maintain insurance  against
such  risks and  in such  amounts as Star  reasonably believes  are necessary to
conduct its business.  Star and the  Star Subsidiaries are  not in default  with
respect  to any provisions  or requirements of  any such policy  nor have any of
them failed to give notice or present  any claim thereunder in a due and  timely
fashion,  except  for  defaults  or  failures  which,  individually  or  in  the
aggregate, would not have  a Material Adverse Effect  on Star. Neither Star  nor
any  Star Subsidiary has  received any notice of  cancellation or termination in
respect of any of its insurance policies.
 
    3.12  MEDICARE/MEDICAID PARTICIPATION; ACCREDITATION.  All services provided
by Star and the Star Subsidiaries which are reimbursable by Medicaid or Medicare
are certified for full participation in such
 
                                      A-8
<PAGE>
programs, have  a current  and valid  provider contract  with the  Medicare  and
Medicaid  programs  or  other  third party  reimbursement  source  (inclusive of
managed care organizations), are in  substantial compliance with the  conditions
of   participation  of  such  programs,  and  have  received  all  approvals  or
qualifications necessary for capital reimbursement (if applicable). Neither Star
nor any Star Subsidiary has received any  notice of recoupment from nor has  any
material  liability  for  reimbursements  of any  excess  payments  made  by the
Medicare or  Medicaid programs  or any  other third  party reimbursement  source
(inclusive of managed care organizations).
 
    3.13   QUESTIONABLE PAYMENTS.  Neither Star,  any Star Subsidiary nor any of
its former subsidiaries, nor, to the  knowledge of Star, any director,  officer,
Affiliate  or employee of Star  or any of its  former subsidiaries: (i) has used
any corporate  funds  of Star,  any  Star Subsidiary  or  any of  Star's  former
subsidiaries  to make any payment to any  officer or employee of any government,
or to any political party or official thereof, where such payment either (A)  is
unlawful  under  laws applicable  thereto  or (B)  would  be unlawful  under the
Foreign Corrupt  Practices  Act of  1977,  as amended;  nor  (ii) has  used  any
corporate  funds of Star, any Star Subsidiary  or any of its former subsidiaries
for making  payments  to any  person  if  such payment  constituted  an  illegal
payment,  bribe, kickback, political contribution  or other similar questionable
payment.
 
    3.14  POOLING OF INTERESTS.  To the best of its knowledge, none of Star, any
of the  Star Subsidiaries  or any  of their  respective directors,  officers  or
stockholders  has  taken  any action  which  would interfere  with  the parties'
ability to account for the Merger as a pooling of interests.
 
    3.15  PERSONNEL STATUS.   The audit referred to in  the Star Form 10-KSB  by
the  Internal  Revenue Service  (the "IRS")  of  a subsidiary  of Star  has been
completed and  fully resolved  between  the IRS  and  Star without  any  payment
required  on the part of  Star. Although the audit referred  to in the Star Form
10-KSB by the New York State Department of Labor (the "DOL") of two subsidiaries
of Star has not been fully resolved between the DOL and Star, Star believes that
such audit will not have a Material Adverse Effect on Star.
 
    3.16  REPRESENTATIONS COMPLETE.   None of the representations or  warranties
made  by Star or Merger Sub herein or in any Schedule hereto, including the Star
Disclosure Schedule, or certificate furnished by Star or Merger Sub pursuant  to
this  Agreement,  or the  Star SEC  Filings,  when all  such documents  are read
together in their entirety, contains or  will contain at the Effective Time  any
untrue statement of a material fact, or omits or will omit at the Effective Time
to  state any material fact necessary in  order to make the statements contained
herein or  therein, in  the light  of the  circumstances under  which made,  not
misleading.
 
    3.17   BROKERS.  Neither Star nor Merger Sub has paid or is obligated to pay
any fee  or  commission  to  any broker,  finder,  investment  banker  or  other
intermediary in connection with this Agreement, except Bear & Company.
 
                                   ARTICLE IV
                    REPRESENTATIONS AND WARRANTIES OF AMSERV
 
    Amserv represents and warrants to Star and Merger Sub as follows:
 
    4.1    CORPORATE ORGANIZATION.   Each  of Amserv  and its  Subsidiaries (the
"Amserv Subsidiaries") is a corporation duly organized, validly existing and  in
good  standing under the laws of the jurisdiction of its incorporation, with all
requisite corporate power and authority to own, operate and lease its properties
and to carry on its business as it  is now being conducted, and is qualified  or
licensed  to do business and  is in good standing  in each jurisdiction in which
the failure to be  so qualified or licensed,  individually or in the  aggregate,
would  have a material adverse effect on the condition (financial or otherwise),
results  of  operations,  business,  working  capital,  assets,  liabilities  or
prospects  of Amserv and the  Amserv Subsidiaries taken as  a whole (a "Material
Adverse Effect on Amserv"). The  Amserv disclosure schedule delivered by  Amserv
herewith  (the "Amserv  Disclosure Schedule")  contains a  complete and accurate
list of all of the Amserv Subsidiaries. Neither Amserv nor any Amserv Subsidiary
is in violation of  any provision of  its charter or Bylaws  which could have  a
Material Adverse Effect on Amserv.
 
                                      A-9
<PAGE>
    4.2   CAPITAL STOCK.  As of the date hereof, the authorized capital stock of
Amserv consists in its entirety of  (i) 15,000,000 shares of common stock,  $.01
par  value, and (ii)  3,000,000 shares of  Preferred Stock, $.01  par value (the
"Amserv Preferred Stock"). As  of February 1, 1996,  3,304,953 shares of  Amserv
Common  Stock  were  issued and  outstanding,  (ii)  195,106 shares  of  Class B
Redeemable Preferred  Stock (the  "Class B  Preferred Shares")  were issued  and
outstanding  and  were the  only  shares of  Amserv  Preferred Stock  issued and
outstanding, (iii) options to acquire 232,366 shares of Amserv Common Stock were
outstanding under  the  Amserv  Option  Plans  (as  hereinafter  defined),  (iv)
1,177,027  shares of Amserv Common Stock were reserved for issuance under all of
the Amserv Option Plans and (v)  150,000 shares of Class C Junior  Participating
Preferred  Stock (the  "Class C  Preferred Shares")  were reserved  for issuance
under  the  Rights  Agreement  between  Amserv  and  First  Interstate  Bank  of
California,  dated as  of January  24, 1996.  All of  the outstanding  shares of
capital stock of each of the  Amserv Subsidiaries are owned beneficially and  of
record  by Amserv or an Amserv Subsidiary  free and clear of all liens, charges,
encumbrances, options,  rights of  first refusal  or limitations  or  agreements
regarding  voting rights of any nature. All of the outstanding shares of capital
stock of Amserv and each of the Amserv Subsidiaries have been validly issued and
are fully paid and nonassessable.
 
    4.3  OPTIONS OR  OTHER RIGHTS.   Except as disclosed in  Section 4.3 of  the
Amserv  Disclosure Schedule  or in Section  4.2 hereto, there  is no outstanding
right, subscription,  warrant, call,  unsatisfied  preemptive right,  option  or
other  agreement or arrangement of any kind  to purchase or otherwise to receive
from Amserv or  any Amserv  Subsidiary any  of the  outstanding, authorized  but
unissued,  unauthorized  or treasury  shares of  the common  stock or  any other
security of Amserv or any Amserv Subsidiary and there is no outstanding security
of any kind convertible into or  exchangeable for such capital stock. Except  as
disclosed in Section 4.3 of the Amserv Disclosure Schedule, no options or rights
to  acquire equity securities granted by Amserv have provisions which accelerate
the vesting or right to exercise such options or rights or terminate any  rights
upon the consummation of the Merger.
 
    4.4   AUTHORITY RELATIVE TO AGREEMENT.   Amserv has full corporate power and
authority  to  execute  and  deliver  this  Agreement  and  to  consummate   the
transactions contemplated on its part hereby. The execution and delivery of this
Agreement by Amserv and the consummation of the transactions contemplated on its
part hereby have been duly authorized by its Board of Directors, and, other than
the  approval of  Amserv's stockholders  as provided  in Section  5.1 hereof, no
other corporate proceedings on the part of Amserv are necessary to authorize the
execution and delivery of  this Agreement by Amserv  or the consummation of  the
transactions  contemplated  on its  part hereby.  This  Agreement has  been duly
executed and  delivered by  Amserv,  and constitutes  legal, valid  and  binding
obligations  of Amserv, enforceable against Amserv in accordance with its terms,
except to  the extent  that such  enforceability may  be limited  by  applicable
bankruptcy,  insolvency, reorganization or other  laws affecting the enforcement
of creditors' rights generally or by general equity principles.
 
    4.5   NO VIOLATION.    Except as  disclosed in  Section  4.5 of  the  Amserv
Disclosure  Schedule, the execution, delivery  and performance of this Agreement
by Amserv and  the consummation by  it of the  transactions contemplated  hereby
will  not (i) violate  or conflict with  any provision of  any law applicable to
Amserv or any Amserv Subsidiary  or by which any of  its property or assets  are
bound,  (ii) require the consent, waiver,  approval, license or authorization of
or any  filing by  Amserv or  any Amserv  Subsidiary with  any public  authority
(other  than as described in  clause (ii) of the  first sentence of Section 3.6)
or, (iii) violate, conflict with or result in a breach of or the acceleration of
any obligation under, or constitute a default (or an event which with notice  or
the  lapse of time or both would become  a default) under, or give to others any
right of, or result in any, termination, amendment, acceleration or cancellation
of, or loss of any benefit or creation of a right of first refusal or result  in
the  creation of a lien or other encumbrance  on any property or asset of Amserv
or any Amserv Subsidiary pursuant  to or under any  provision of any charter  or
bylaw,   indenture,  mortgage,   lien,  lease,   license,  agreement,  contract,
instrument, order, judgment, ordinance, Amserv  Permit (as defined below),  law,
regulation or decree to which Amserv or Amserv Subsidiary is subject or by which
Amserv  or any Amserv Subsidiary  or any of their  property or assets are bound,
except where the failure to
 
                                      A-10
<PAGE>
give such notice, make  such filings, or  obtain such authorizations,  consents,
waivers,  licenses or approvals, or  where such violations, conflicts, breaches,
defaults,  terminations,  amendments,  accelerations,  cancellations,  loss   of
rights,  liens or encumbrances, individually or in the aggregate, would not have
a Material Adverse  Effect on Amserv  or on Amserv's  ability to consummate  the
transactions contemplated hereby.
 
    4.6  COMPLIANCE WITH LAWS.
 
    (a)  Amserv and each Amserv Subsidiary  hold all licenses, permits and other
authorizations  necessary  to  conduct   its  business  (collectively,   "Amserv
Permits"), are certified as providers under all applicable Medicare and Medicaid
programs  to the extent required to be  so certified, and are in compliance with
all Amserv Permits and  all federal, state and  other laws, rules,  regulations,
ordinances and orders governing its business, including, without limitation, the
requirements,  guidelines, rules and regulations of Medicare, Medicaid and other
third-party reimbursement  programs,  except  where the  failure  to  hold  such
licenses, permits and other authorizations or to so comply would not be material
to  the financial  condition, results of  operations, business  or properties of
Amserv and the Amserv Subsidiaries taken as  a whole. The Amserv Permits are  in
full force and effect.
 
    (b)  All health care  personnel employed by Amserv  or any Amserv Subsidiary
are properly licensed  to the  extent required to  perform the  duties of  their
employment  in each jurisdiction  where such duties  are performed, except where
the failure to be so licensed would not be material to the financial  condition,
results  of  operations,  business  or  properties  of  Amserv  and  the  Amserv
Subsidiaries taken as a whole.
 
    (c) No action or proceeding is pending or, to Amserv's knowledge, threatened
that may result in suspension, revocation  or termination of any Amserv  Permit,
the   issuance  of  any  cease-and-desist  order,   or  the  imposition  of  any
administrative  or  judicial  sanction,  and  neither  Amserv  nor  any   Amserv
Subsidiary has received any notice from any governmental authority in respect of
the suspension, revocation or termination of any Amserv Permit, or any notice of
any  intention to conduct any investigation  or institute any proceeding, in any
such case  where  such  suspension, revocation,  termination,  order,  sanction,
investigation,  or  proceeding would  be  material to  the  financial condition,
results  of  operations,  business  or  properties  of  Amserv  and  the  Amserv
Subsidiaries taken as a whole.
 
    (d)  Neither  Amserv  nor any  Amserv  Subsidiary has  received  notice that
Medicare, Medicaid or any other third-party reimbursement program has any claims
for disallowance of  costs against any  of them which  could result in  material
offsets  against  future  reimbursement  or recovery  of  prior  payments, which
offsets  or  recoveries  have  not  been  reserved  for  in  Amserv's  financial
statements.
 
    4.7    LITIGATION.    Except as  set  forth  in Section  4.7  of  the Amserv
Disclosure Schedule or in the Amserv SEC  Filings (as defined below) made as  of
the  date  hereof,  there  are  no  suits,  arbitrations,  mediations,  actions,
proceedings, unfair  labor  practice complaints  or  grievances pending  or,  to
Amserv's  knowledge, threatened against Amserv or  any Amserv Subsidiary or with
respect to any property or  asset of any of  them before any court,  arbitrator,
administrator   or  governmental   or  regulatory   authority  or   body  which,
individually or  in the  aggregate,  would have  a  Material Adverse  Effect  on
Amserv.  Neither Amserv nor any  Amserv Subsidiary nor any  property or asset of
any of  them is  subject to  any order,  judgment, injunction  or decree  which,
individually  or  in the  aggregate,  would have  a  Material Adverse  Effect on
Amserv.
 
    4.8  FINANCIAL STATEMENTS  AND REPORTS.  Amserv  has made available to  Star
true  and complete  copies of (i)  its Annual Report  on Form 10-K  for the year
ended June 24, 1995 (the "Amserv 10-K"), as filed with the Commission, (ii)  its
proxy  statement relating to its most recent annual meeting of its stockholders,
(iii) all registration statements filed  by Amserv and declared effective  under
the  Securities Act since January 1, 1993 and (iv) all other reports, statements
and registration statements (including Current Reports on Form 8-K) filed by  it
with  the Commission subsequent to January  1, 1993. The reports, statements and
registration statements  referred  to  in  the  immediately  preceding  sentence
(including,  without limitation, any financial  statements or schedules or other
information included or incorporated  by reference therein)  are referred to  in
this  Agreement as  the "Amserv  SEC Filings." As  of the  respective times such
documents were filed or, as
 
                                      A-11
<PAGE>
applicable, became effective,  the Amserv SEC  Filings complied as  to form  and
content,  in all material respects, with  the requirements of the Securities Act
and the  Exchange  Act, as  the  case may  be,  and the  rules  and  regulations
promulgated  thereunder, and did not contain  any untrue statement of a material
fact or  omit to  state  any material  fact required  to  be stated  therein  or
necessary  to make the  statements therein, in light  of the circumstances under
which they  were  made,  not  misleading. The  financial  statements  of  Amserv
included  in the Amserv  SEC Filings were prepared  in accordance with generally
accepted accounting principles  (as in effect  from time to  time) applied on  a
consistent  basis  and (except  as  may be  indicated  therein or  in  the notes
thereto)  present  fairly  the  consolidated  financial  position,  consolidated
results  of  operations and  consolidated cash  flows of  Amserv and  the Amserv
Subsidiaries as of the dates and for the periods indicated subject, in the  case
of  unaudited  interim consolidated  financial  statements, to  normal recurring
year-end adjustment and any other  adjustment described therein. Since June  24,
1995,  there  has been  no  change in  accounting  principles applicable  to, or
methods of accounting utilized by, Amserv.  The books and records of Amserv  and
the  Amserv Subsidiaries have  been and are being  maintained in accordance with
good business  practice,  reflect  only valid  transactions,  are  complete  and
correct  in all material  respects, and present fairly  in all material respects
the basis for the financial position and results of operations of Amserv and the
Amserv Subsidiaries set forth in the financial statements of Amserv included  in
the  Amserv SEC  Filings. Amserv  is not  aware of  any pending  or contemplated
legislation or changes in rules, regulations or administrative orders which,  if
enacted or implemented, would, individually or in the aggregate, have a Material
Adverse Effect on Amserv.
 
    4.9   ABSENCE OF CERTAIN CHANGES OR EVENTS.   Since June 24, 1995, except as
expressly disclosed in the Amserv SEC Filings made through the date hereof,  the
business  of Amserv and of each of the Amserv Subsidiaries has been conducted in
the ordinary course, and there has not  been (i) any material adverse change  in
the condition (financial or otherwise), results of operations, business, working
capital,   assets,  liabilities,   or  prospects   of  Amserv   and  the  Amserv
Subsidiaries, taken as a whole; (ii) any indebtedness incurred by Amserv or  any
Amserv  Subsidiary  for  money  borrowed;  (iii)  any  material  transaction  or
commitment, except in the ordinary course of business or as contemplated by this
Agreement or as set forth in Section 4.9 of the Amserv Disclosure Schedule or in
the  Amserv  SEC  Filings,  entered  into  by  Amserv  or  any  of  the   Amserv
Subsidiaries; (iv) any damage, destruction or loss, whether covered by insurance
or  not, which, individually or in the  aggregate, would have a Material Adverse
Effect on  Amserv;  (v)  except as  set  forth  in Section  4.9  of  the  Amserv
Disclosure  Schedule, any declaration, setting aside  or payment of any dividend
(whether in cash,  securities or  property) with  respect to  the Amserv  Common
Stock;  (vi) any  material agreement  to acquire, any  assets or  stock or other
interests of any third-party; (vii) any increase in the compensation payable  or
to become payable by Amserv or any Amserv Subsidiary to any employees, officers,
directors,  or consultants or in any bonus, insurance, welfare, pension or other
employee benefit plan,  payment or  arrangement made to,  for or  with any  such
employee,  officer, director or consultant (other than as provided in employment
agreements, consulting agreements and welfare and benefit plans set forth on the
Amserv Disclosure Schedule); (viii)  any material revaluation  by Amserv or  any
Amserv  Subsidiary of any asset (including, without limitation, any writing down
of the value of inventory or writing off of notes or accounts receivable);  (ix)
any material change by Amserv in accounting principles or methods except insofar
as  may be required by a change in generally accepted accounting principles; (x)
any mortgage or  pledge of  any of  the assets or  properties of  Amserv or  any
Amserv Subsidiary or the subjection of any of the assets or properties of Amserv
or   any  Amserv  Subsidiary  to  any  material  liens,  charges,  encumbrances,
imperfections of title, security interest, options or rights or claims of others
with respect thereto; or (xi) any assumption or guarantee by Amserv or a  Amserv
Subsidiary of the indebtedness of any person or entity.
 
    4.10  EMPLOYEE BENEFIT PLANS AND EMPLOYMENT MATTERS.
 
    (a)  Section  4.10  of the  Amserv  Disclosure Schedule  lists  all employee
benefit plans, collective bargaining agreements, labor contracts, and employment
agreements not otherwise disclosed in the Amserv SEC Filings, which provide  for
the  annual payment  of more  than $25,000 in  which Amserv  participates, or by
which it  is  bound, including,  without  limitation, (i)  any  profit  sharing,
deferred compensation, bonus, stock
 
                                      A-12
<PAGE>
option,  stock purchase, pension, welfare, and incentive plan or agreement; (ii)
any plan providing for  "fringe benefits" to its  employees, including, but  not
limited  to, vacation, sick leave,  medical, hospitalization and life insurance;
(iii) any written employment  agreement and any  other employment agreement  not
terminable  at  will; and  (iv) any  other "employee  benefit plan"  (within the
meaning of Section  3(3) of ERISA)  that is  not exempted from  the coverage  of
ERISA  by reason of the Department of Labor regulations. Amserv is in compliance
in all material respects with their requirement prescribed by all laws currently
in effect applicable to employee benefit plans and to any employment  agreement,
including,  but not limited to, ERISA and  the Code. Amserv has performed all of
its obligations under all such employee benefit plans and employment  agreements
in  all material respects. There  is no pending or,  to the knowledge of Amserv,
threatened legal action,  proceeding or investigation  against or involving  any
Amserv  employee  benefit  plan  which  could result  in  a  material  amount of
liability to such employee benefit plan or to Amserv.
 
    (b) Amserv does  not sponsor  or participate in,  and has  not sponsored  or
participated  in, any  employee benefit  pension plan  to which  Section 4021 of
ERISA applies that would create a  material amount of liability to Amserv  under
Title IV of ERISA.
 
    (c)  Amserv does  not sponsor  or participate in,  and has  not sponsored or
participated in,  any employee  benefit pension  plan that  is a  "multiemployer
plan"  (within the meaning of Section 3(37)  of ERISA) that would subject Amserv
to any material amount of liability with respect to any such plan.
 
    (d) All group health plans of  Amserv have been operated in compliance  with
the group health plan continuation coverage requirements of Section 4980B of the
Code in all material respects, to the extent such requirements are applicable.
 
    (e)  There have been no acts or omissions  by Amserv that have given rise to
or may give rise  to a material  amount of fines,  penalties, taxes, or  related
charges under Sections 502(c) or 4071 of ERISA or under Chapter 43 of the Code.
 
    (f)  No "reportable  event," as  defined in  ERISA Section  4043, other than
those events with respect to which the Pension Benefit Guaranty Corporation  has
waived  the notice requirement, has occurred with respect to any of the employee
benefit plans of Amserv.
 
    (g) The Amserv  Disclosure Schedule sets  forth the name  of each  director,
officer or employee of Amserv entitled to receive any material amount of benefit
or  payment under  any existing  employment agreement,  severance plan  or other
benefit plan  solely  as  a  result  of  the  consummation  of  any  transaction
contemplated by this Agreement, and with respect to each such person, the nature
of  such benefit or the amount of such payment, the event triggering the benefit
or payment,  and  the  date  of, and  parties  to,  such  employment  agreement,
severance plan or other benefit plan.
 
    (h)  Amserv has made available  to Star true and  correct copies of all plan
documents and  employment  agreements  referred  to  on  the  Amserv  Disclosure
Schedule,  including  all  amendments  thereto,  and  all  related  summary plan
descriptions to the extent that one is required by law.
 
    (i) For purposes of  this Section 4.10, any  reference to "Amserv" shall  be
deemed to include a reference to any entity that is aggregated with Amserv under
the  provisions of Section 414 of the Code, to the extent that those aggregation
rules apply.
 
    4.11  LABOR MATTERS.  Neither Amserv nor any Amserv Subsidiary is a party to
any collective bargaining agreement with respect to any of their employees. None
of the employees of Amserv or any Amserv Subsidiary is represented by any  labor
union.  To the knowledge of Amserv, there is no activity involving any employees
of Amserv or the Amserv Subsidiaries seeking to certify a collective  bargaining
unit or engaging in any other organizational activity.
 
    4.12   INSURANCE.   Amserv  and the  Amserv Subsidiaries  maintain insurance
against such  risks  and in  such  amounts  as Amserv  reasonably  believes  are
necessary to conduct its business. Amserv and the Amserv Subsidiaries are not in
default  with respect to any  provisions or requirements of  any such policy nor
have any
 
                                      A-13
<PAGE>
of  them failed  to give  notice or present  any claim  thereunder in  a due and
timely fashion, except for  defaults or failures which,  individually or in  the
aggregate,  would not have  a Material Adverse Effect  on Amserv. Neither Amserv
nor any Amserv Subsidiary has received any notice of cancellation or termination
in respect of any of its insurance policies.
 
    4.13  ENVIRONMENTAL  MATTERS.   Amserv and  the Amserv  Subsidiaries are  in
compliance with all environmental laws, and have obtained all necessary licenses
and  permits required  to be  issued pursuant  to any  environmental law, except
where the  failure  to  so  comply  or  to  obtain  such  licenses  or  permits,
individually  or in the aggregate,  would not have a  Material Adverse Effect on
Amserv. Neither Amserv  nor any  Amserv Subsidiary  has received  any notice  or
communication  from any  governmental agency with  respect to  (i) any hazardous
substance  relative  to  its  operations,   property  or  assets  or  (ii)   any
investigation,  demand or  request pursuant  to enforcing  any environmental law
relating to it or its  operations, and no such  investigation is pending or,  to
the knowledge of Amserv, threatened, in any case, which would lead to a Material
Adverse Effect on Amserv.
 
    4.14   TAX MATTERS.  Amserv and each Amserv Subsidiary has paid in full when
due, or, to the extent not yet due, made adequate provision on its September 23,
1995 balance sheet (as contained in Amserv's Quarterly Report on Form 10-QSB for
the quarter ended  on such  date as  filed by  Amserv with  the Commission  (the
"September  23, 1995 Balance Sheet")) for  all federal, state, local, foreign or
other  governmental   income,   franchise,  payroll,   F.I.C.A.,   unemployment,
withholding,  real property,  personal property, sales,  payroll, disability and
all other taxes imposed on  Amserv or any Amserv  Subsidiary or with respect  to
any  of their respective businesses, income  or properties, or otherwise payable
by  them,  including  interest  and  penalties,  if  any,  in  respect   thereof
(collectively,   "Amserv  Taxes").  Amserv  Taxes  paid  and/or  incurred  after
September 23, 1995 include only Amserv Taxes incurred in the ordinary course  of
business  determined in the  same manner as  with respect to  the taxable period
ending on  such date  (and agrees  not to  make, revoke  or amend  any  election
relating  to Amserv Taxes without  the consent of Star)  and Amserv has properly
paid or accrued  for all such  Taxes for such  periods. Amserv and  each of  the
Amserv Subsidiaries have timely filed all income tax, excise tax, sales tax, use
tax,  gross receipts  tax, franchise  tax, employment  and payroll  related tax,
property tax,  and  all  other  tax returns  which  Amserv  and/or  such  Amserv
Subsidiary (as the case may be) are required to file ("Amserv Tax Returns"), and
have  paid or provided for  all the amounts shown to  be due thereon. All Amserv
Tax Returns  are true,  correct  and complete.  Neither  Amserv nor  any  Amserv
Subsidiary  (i)  has  filed or  entered  into,  or is  otherwise  bound  by, any
election, consent or extension agreement that extends any applicable statute  of
limitations  with respect to taxable periods of Amserv or any Amserv Subsidiary,
(ii) is a party to any  contractual obligation requiring the indemnification  or
reimbursement  of any person with respect to the payment of any taxes other than
among Amserv and the Amserv Subsidiaries, (iii)  has elected to be treated as  a
consenting  corporation under Section  341(f) of the Code,  or (iv) has received
any claim by an authority in a jurisdiction where neither Amserv nor any  Amserv
Subsidiary  files Amserv Tax Returns  that they are or  may be subject to Amserv
Taxes by that jurisdiction, except for any such claims as would not be  material
to  the financial  condition, results of  operations, business  or properties of
Amserv and the  Amserv Subsidiaries taken  as a  whole. Except as  set forth  in
Section  4.14  of the  Amserv Disclosure  Schedule, no  action or  proceeding is
pending or, to Amserv's knowledge, threatened by any governmental authority  for
any  audit, examination, deficiency, assessment or collection from Amserv or any
Amserv Subsidiary  of  any  Amserv  Taxes,  and  no  unresolved  claim  for  any
deficiency,  assessment  or collection  of any  Amserv  Taxes has  been asserted
against Amserv  or any  Amserv Subsidiary.  All resolved  assessments of  Amserv
Taxes have been paid or are reflected on the September 23, 1995 Balance Sheet.
 
    4.15    INTELLECTUAL  PROPERTY.   Amserv  and the  Amserv  Subsidiaries own,
possess or have the  right to use all  franchises, patents, trademarks,  service
marks,   tradenames,   licenses   and   authorizations   (collectively,  "Amserv
Intellectual Property  Rights") which  are  necessary to  the conduct  of  their
respective businesses. To the knowledge of Amserv, neither Amserv nor any Amserv
Subsidiary is infringing or otherwise violating the intellectual property rights
of any person which infringement or violation would subject Amserv or any Amserv
Subsidiary  to liabilities which,  individual or in the  aggregate, would have a
Material Adverse Effect
 
                                      A-14
<PAGE>
on Amserv or which would prevent Amserv or any Amserv Subsidiary from conducting
their respective businesses substantially  in the manner in  which they are  now
being  conducted. No claim  has been made or,  to Amserv's knowledge, threatened
against Amserv or any Amserv Subsidiary alleging any such violation.
 
    4.16  RELATED PARTY  TRANSACTIONS.  Except as  disclosed in Section 4.16  of
the  Amserv Disclosure Schedule or in the Amserv SEC Filings, there have been no
material transactions between Amserv or any  Amserv Subsidiary on the one  hand,
and  any (i) officer or director of Amserv or any Amserv Subsidiary, (ii) record
or beneficial owner of five percent or  more of the voting securities of  Amserv
or  (iii) affiliate  (as such  term is  defined in  Regulation 12b-2 promulgated
under the Exchange Act)  of any such officer,  director or beneficial owner,  on
the  other hand,  other than  payment of  compensation for  services rendered to
Amserv or the Amserv Subsidiaries by any officer or director of Amserv or Amserv
Subsidiaries. Amserv has a perfected first  priority lien on (A) 110,000  shares
of  Amserv Common  Stock pursuant to  the terms  of the promissory  note and the
stock pledge agreement, each dated April 20, 1995 and amended as of January  16,
1996  between Eugene J. Mora and Amserv, and (B) 110,500 shares of Amserv Common
Stock pursuant to the promissory note and the stock pledge agreement, each dated
January 16, 1996 between Mr. Mora and Amserv.
 
    4.17   NO UNDISCLOSED  MATERIAL LIABILITIES.   Except  as disclosed  in  the
Amserv  SEC  Filings, neither  Amserv  nor any  of  the Amserv  Subsidiaries has
incurred any liabilities  of any kind  whatsoever, whether accrued,  contingent,
absolute,  determined, determinable or  otherwise, that, individually  or in the
aggregate, would have a Material Adverse Effect on Amserv other than liabilities
under or contemplated by this Agreement.
 
    4.18  NO DEFAULT.  Neither Amserv  nor any of the Amserv Subsidiaries is  in
default  or violation (and no event has  occurred which with notice or the lapse
of time or both would constitute a default or violation) of any term,  condition
or  provision of  (i) its  charter or  By-Laws, (ii)  any note,  bond, mortgage,
indenture, license, agreement, contract,  lease, commitment or other  obligation
to which Amserv or any of the Amserv Subsidiaries is a party or by which they or
any  of  their properties  or  assets may  be bound,  or  (iii) any  order, writ
injunction, decree, statute, rule or regulation  applicable to Amserv or any  of
the  Amserv Subsidiaries, except in the case of clauses (ii) and (iii) above for
defaults or violations which would not have a Material Adverse Effect on Amserv.
 
    4.19  TITLE TO PROPERTIES; ENCUMBRANCES.
 
    (a) Amserv and the Amserv Subsidiaries have good and marketable title to all
of the  Assets (as  hereinafter defined)  reflected as  owned by  Amserv on  the
September  23,  1995 Balance  Sheet  and all  Assets  thereafter acquired  by it
(except for Assets disposed of  by it in the  ordinary course of business).  The
Assets  are not subject to any mortgage, security interest, pledge, lien, claim,
encumbrance or  charge, or  restraint or  transfer whatsoever  and no  currently
effective  financing statement with respect to any  of its Assets has been filed
under the Uniform Commercial  Code in any jurisdiction.  Neither Amserv nor  any
Amserv  Subsidiary  is  a  party  to any  financing  statement  or  any security
agreement authorizing  any  secured  party  thereunder  to  file  any  financing
statement. No person other than Amserv has any right to the use or possession of
any  of the  Assets. All  Assets which  are real  property or  tangible personal
property, whether owned or leased, are  in good operating condition and  repair,
excepting  normal wear and tear, and are  sufficient to enable Amserv to operate
its business in a  manner consistent with its  operation during the  immediately
preceding twelve (12) months.
 
    (b) Set forth on Section 4.19(b) of the Amserv Disclosure Schedule is a true
and  correct list of leases, conditional sales, licenses or similar arrangements
to which Amserv or any  Amserv Subsidiary is a party  or to which Amserv or  any
Amserv  Subsidiary  or any  Asset is  subject.  Amserv has  delivered to  Star a
complete and correct  copy of each  lease, conditional sale,  license and  other
arrangement  listed in Section 4.19(b) of the Amserv Disclosure Schedule. All of
said arrangements are valid,  binding and enforceable  in accordance with  their
respective terms and are in full force and effect. Neither Amserv nor any Amserv
Subsidiary  is in default under one or  more of such arrangements, except to the
extent such defaults would not have a
 
                                      A-15
<PAGE>
Material Adverse  Effect on  Amserv  and has  not  received any  written  notice
alleging  any default, set-off, or claim of default. To the knowledge of Amserv,
the parties  to  such  arrangements  are not  in  default  of  their  respective
obligations under any of such arrangements, and there has not occurred any event
which,  with the passage of time or giving of notice (or both), would constitute
such a default or breach under any of such arrangements.
 
    (c) As  used  herein,  the term  "Assets"  means  all of  the  tangible  and
intangible  assets  of Amserv  and  the Amserv  Subsidiaries  including, without
limitation, all real  property, tangible personal  property (including,  without
limitation,  fixed  and moveable  equipment,  trucks, cars  and  other vehicles,
furnishings, inventory  and  supplies), contract  rights,  leasehold  interests,
goodwill,  tradenames,  trademarks, patient  records  and files,  patient films,
Medicare and Medicaid provider agreements and numbers, telephone numbers and, to
the extent  permitted  by law,  all  permits, licenses  and  other  governmental
approvals.
 
    4.20   CONTRACTS.  Section 4.20 of the Amserv Disclosure Schedule contains a
complete and correct  list of  all of  the following  categories of  agreements,
contracts,  arrangements and  commitments ("Contracts"),  including summaries of
oral contracts (except immaterial oral  contracts terminable at will), to  which
Amserv  or any  Amserv Subsidiary  or any  of the  Assets are  bound, including,
without limitation:
 
        (a) each contract or  agreement for the employment  or retention of,  or
    collective   bargaining,  severance  or   termination  agreement  with,  any
    director,  officer,  employee,  consultant,  agent,  employee  or  group  of
    employees;
 
        (b)   each   profit   sharing,   thrift,   bonus,   incentive,  deferred
    compensation,  stock  option,  stock   purchase,  severance  pay,   pension,
    retirement,  hospitalization, insurance or other  similar plan, agreement or
    arrangement;
 
        (c) each agreement or arrangement  (including letter of intent) for  the
    purchase  or sale of  any assets, properties or  rights outside the ordinary
    course of  business (by  purchase or  sale of  assets, purchase  or sale  of
    capital stock, merger or otherwise) which is currently in effect;
 
        (d)  each contract which contains any provisions requiring Amserv or any
    Amserv Subsidiary to indemnify or act  for, or guarantee the obligation  of,
    any other person or entity;
 
        (e)  each  agreement restricting  Amserv or  any Amserv  Subsidiary from
    conducting business of any nature anywhere in the world;
 
        (f) each partnership or joint venture contract or similar arrangement or
    agreement which is likely to involve a sharing of profits or future payments
    with respect  to the  business (or  any portion  thereof) of  Amserv or  any
    Amserv Subsidiary;
 
        (g)  each agreement  under which Amserv  or any Amserv  Subsidiary is to
    acquire  or  contract   to  receive   the  services  of   any  health   care
    professionals;
 
        (h)  each agreement to perform or provide services for any nursing home,
    health care facility or any other facility or individual;
 
        (i) each agreement with a laboratory;
 
        (j)  each  lease,  license,   conditional  sales  contract  or   similar
    arrangement  for real or  personal property or any  corporate name, trade or
    service mark, copyright, patent, process, operational manual, technique  and
    similar property; and
 
        (k)  each other agreement not made in  the ordinary and normal course of
    business which involves consideration of more than $25,000; and
 
        (l) each letter of  intent or agreement in  principle to enter into  any
    Contract (whether or not binding, in whole or in part).
 
                                      A-16
<PAGE>
    True,  correct and  complete copies of  each Contract have  been provided or
made available to Star and each remains  in full force and effect in  accordance
with  the copies provided  to Star. Each  of the Contracts  was entered into and
requires performance only in the ordinary  course of business. Amserv is not  in
material  default under any Contract and no default or right of set-off has been
asserted, either by or  against Amserv under any  Contract. To the knowledge  of
Amserv,  the parties to  the Contracts, other  than Amserv, are  not in material
default of any of  their respective obligations under  the Contracts, and  there
has  not occurred  any event, which  with the passage  of time or  the giving of
notice (or  both), would  constitute  a material  default  or breach  under  any
Contract.  All amounts payable  by Amserv under  the Contracts are  on a current
basis. Except as set forth in Section 4.20(m) of the Amserv Disclosure Schedule,
no Contract is terminable nor requires a payment in the event of the Merger or a
change in control of Amserv.
 
    4.21  MEDICARE/MEDICAID PARTICIPATION; ACCREDITATION.  All services provided
by Amserv and  the Amserv  Subsidiaries which  are reimbursable  by Medicaid  or
Medicare  are certified for full participation  in such programs, have a current
and valid provider  contract with the  Medicare and Medicaid  programs or  other
third  party reimbursement source (inclusive of managed care organizations), are
in substantial compliance with the conditions of participation of such programs,
and  have  received  all  approvals  or  qualifications  necessary  for  capital
reimbursement  (if  applicable). Neither  Amserv nor  any Amserv  Subsidiary has
received any  notice of  recoupment  from nor  has  any material  liability  for
reimbursements  of any excess payments made by the Medicare or Medicaid programs
or any  other  third  party  reimbursement source  (inclusive  of  managed  care
organizations).
 
    4.22   RATE  TABLES AND  REIMBURSEMENT.   Amserv has  provided to  Star rate
tables that set forth a complete and correct list of the rates charged by Amserv
and the Amserv Subsidiaries to their  various customers. Neither Amserv nor  any
Amserv  Subsidiary  is required  to pay  any Medicare  or Medicaid  refunds, and
neither Amserv  nor any  Amserv Subsidiary  has paid  any Medicare  or  Medicaid
refunds since January 1, 1993.
 
    4.23   RELATIONSHIPS.   Except  as disclosed in  the Amserv  SEC Filings, no
controlling shareholder, partner  or affiliate  of Amserv  has, or  at any  time
within  the last two (2)  years has had, an  ownership interest in any business,
corporate or otherwise,  that is  a party  to, or in  any property  that is  the
subject of, any business relationship or arrangement of any kind relating to the
operation  or business  of, or  which may  be binding  upon, Amserv,  any Amserv
Subsidiary or their Assets.
 
    4.24  EMPLOYEES.  Section 4.24 of the Amserv Disclosure Schedule sets  forth
a  complete  and  correct  list  of  the  name,  position  and  current  rate of
compensation and all other compensation arrangements or fringe benefits of  each
officer of Amserv and each Amserv Subsidiary.
 
    4.25   QUESTIONABLE PAYMENTS.  Neither Amserv, any Amserv Subsidiary nor any
of its  former subsidiaries,  nor, to  the knowledge  of Amserv,  any  director,
officer,  Affiliate or employee of Amserv or any of its former subsidiaries: (i)
has used any corporate funds of Amserv, any Amserv Subsidiary or any of Amserv's
former subsidiaries  to make  any payment  to  any officer  or employee  of  any
government,  or to any  political party or official  thereof, where such payment
either (A) is unlawful  under laws applicable thereto  or (B) would be  unlawful
under  the Foreign Corrupt Practices Act of  1977, as amended; nor (ii) has used
any corporate  funds of  Amserv, any  Amserv  Subsidiary or  any of  its  former
subsidiaries  for making payments  to any person if  such payment constituted an
illegal payment,  bribe,  kickback,  political  contribution  or  other  similar
questionable payment.
 
    4.26   POOLING OF INTERESTS.  To the  best of its knowledge, none of Amserv,
any of the Amserv Subsidiaries or any of their respective directors, officers or
stockholders has  taken  any action  which  would interfere  with  the  parties'
ability to account for the Merger as a pooling of interests.
 
    4.27   REPRESENTATIONS COMPLETE.  None  of the representations or warranties
made by Amserv herein or in any Schedule hereto, including the Amserv Disclosure
Schedule, or certificate furnished by Amserv pursuant to this Agreement, or  the
Amserv  SEC  Filings,  when  all  such  documents  are  read  together  in their
 
                                      A-17
<PAGE>
entirety, contains or will contain at the Effective Time any untrue statement of
a material  fact, or  omits or  will omit  at the  Effective Time  to state  any
material  fact necessary  in order  to make  the statements  contained herein or
therein, in the light of the circumstances under which made, not misleading.
 
    4.28  BROKERS.   Neither Amserv  nor any  Amserv Subsidiary has  paid or  is
obligated  to pay any fee or commission to any broker, finder, investment banker
or other intermediary in connection with this Agreement, except that Amserv  has
retained Batchelder & Partners, Inc. ("Batchelder") as its financial advisor for
the transactions contemplated hereby.
 
                                   ARTICLE V
                            COVENANTS AND AGREEMENTS
 
    5.1  JOINT PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT; STOCKHOLDERS'
MEETING.
 
    (a)  Star and Amserv agree  that this Agreement shall  be submitted to their
respective stockholders for approval  at a meeting  (the "Meeting") duly  called
and held pursuant to applicable state law. As soon as practicable after the date
of  this Agreement, each of Amserv and Star shall take all action, to the extent
necessary in accordance with applicable law and their respective Certificates of
Incorporation and Bylaws, to convene each Meeting promptly to consider and  vote
upon  the approval of the  Merger and such other matters  as may be necessary or
desirable to consummate the Merger and the transactions contemplated hereby.
 
    As soon as  practicable after the  date of this  Agreement, Amserv and  Star
shall  jointly prepare and  file with (i)  the Commission, subject  to the prior
approval of the other party, which approval shall not be unreasonably  withheld,
preliminary proxy materials relating to each Meeting as required by the Exchange
Act,  and a registration statement on Form  S-4 (as amended or supplemented, the
"Registration Statement") relating to the registration under the Securities  Act
of the shares of Star Common Stock issuable to the holders of the Amserv Shares,
and  (ii) state securities administrators, such registration statements or other
documents as  may be  required under  applicable  blue sky  laws to  qualify  or
register  the shares of Star Common Stock  issuable to the holders of the Amserv
Shares (the "Blue  Sky Filings").  Amserv, Merger Sub  and Star  will use  their
reasonable  best efforts to cause the Registration Statement to become effective
as soon as  practicable. Promptly  after the Registration  Statement has  become
effective  and all applicable blue sky laws  have been complied with, Amserv and
Star shall mail the proxy statement to their respective stockholders. Such joint
proxy statement at the time it initially is mailed to the stockholders of Amserv
and the stockholders  of Star and  all duly filed  amendments or revisions  made
thereto,  if any,  similarly mailed  are hereinafter  referred to  as the "Proxy
Statement." Notice of the Amserv Meeting shall be mailed to the stockholders  of
Amserv  and notice of  the Star Meeting  shall be mailed  to the stockholders of
Star along with the Proxy Statement.
 
    (b) Each party represents and warrants  that the information supplied or  to
be  supplied  by  it  for  and included  or  incorporated  by  reference  in the
Registration Statement, the Blue Sky Filings, the Proxy Statement and any  other
documents to be filed with the Commission or any regulatory agency in connection
with  the transactions  contemplated hereby will,  at the  respective times such
documents are  filed  or, as  applicable,  declared  effective and,  as  of  the
Effective  Time, and, with respect to the Proxy Statement, when first published,
sent or given to the stockholders of Amserv and the stockholders of Star and  at
the  time of the Meetings, not be false or misleading with respect to a material
fact, or  omit  to state  any  material fact  necessary  in order  to  make  the
statements therein not misleading.
 
    (c)  Each party covenants and  agrees that (i) if, at  any time prior to the
Effective Time, any event relating to it  or any of its affiliates, officers  or
directors  is  discovered  that should  be  set  forth in  an  amendment  to the
Registration Statement  or  Blue  Sky  Filings or  a  supplement  to  the  Proxy
Statement, such party will promptly inform the other parties, and such amendment
or  supplement will be promptly filed  with the Commission and appropriate state
securities   administrators   and   disseminated   to   the   Stockholders    of
 
                                      A-18
<PAGE>
Amserv  and  Star,  to  the  extent required  by  applicable  federal  and state
securities laws, and (ii) documents which  either party files or is  responsible
for  filing with the Commission and any regulatory agency in connection with the
Merger (including, without limitation,  the Proxy Statement)  will comply as  to
form and content in all material respects with the provisions of applicable law.
Notwithstanding  the foregoing, no party makes any representations or warranties
with respect to any information that has been supplied by the other party or  by
its  auditors,  attorneys,  financial advisors,  other  consultants  or advisors
specifically for use in the Registration  Statement, Blue Sky Filing, the  Proxy
Statement,  or  any other  documents  to be  filed  with the  Commission  or any
regulatory agency in connection with the transactions contemplated hereby.
 
    (d) Amserv hereby represents that its Board of Directors has (i)  determined
that  the merger is fair to and  in the best interests of Amserv's stockholders,
(ii) approved the Merger and (iii) resolved  to and will recommend in the  Proxy
Statement  adoption of  this Agreement  and authorization  of the  Merger by the
stockholders of Amserv; provided, however, that such determination, approval  or
recommendation  may be amended, modified or  withdrawn to the extent required by
the fiduciary obligations of Amserv's  Board of Directors under applicable  law,
as  advised  by  outside  counsel.  Star hereby  represents  that  its  Board of
Directors has  (i)  determined that  the  Merger is  fair  to and  in  the  best
interests of Star's stockholders, (ii) approved the Merger and (iii) resolved to
and  will  recommend  in the  Proxy  Statement  adoption of  this  Agreement and
authorization of the Merger by the stockholders of Star.
 
    (e) Amserv shall use all reasonable efforts to cause to be delivered to Star
a letter of Ernst  & Young LLP, Amserv's  independent accountants, dated a  date
within  five  (5)  business  days  before the  date  on  which  the Registration
Statement shall become effective and addressed to Star, of the kind contemplated
by the Statement of Auditing Standards  with respect to Letters to  Underwriters
promulgated  by  the American  Institute  of Certified  Public  Accountants (the
"AICPA Statement"), in form  and substance reasonably  satisfactory to Star  and
customary  in scope  and substance for  letters delivered  by independent public
accountants  in  connection   with  registration  statements   similar  to   the
Registration  Statement. Star  shall use all  reasonable efforts to  cause to be
delivered to  Amserv  (i)  a letter  of  Holtz  Rubinstein &  Co.,  LLP,  Star's
independent  accountants, dated a date within  five (5) business days before the
date on which the Registration Statement shall become effective and addressed to
Amserv, of the kind contemplated by  the AICPA Statement, in form and  substance
reasonably  satisfactory  to Amserv  and customary  in  scope and  substance for
letters  delivered  by  independent   public  accountants  in  connection   with
registration  statements  similar to  the  Registration Statement  and  (ii) the
letter referred to in Section 6.1(f) on the Effective Time.
 
    5.2  CONDUCT OF THE BUSINESS OF  AMSERV PRIOR TO THE EFFECTIVE TIME.   Prior
to  the Effective Time, except as otherwise  consented to or approved in writing
by Star,  or  required to  consummate  the transactions  contemplated  by,  this
Agreement:
 
        (a)  Amserv and the  Amserv Subsidiaries shall  conduct their respective
    businesses in the ordinary  course and consistent  in all material  respects
    with  past  practice  and  shall  use  all  reasonable  efforts  to preserve
    substantially  intact  their  respective  business  organizations,  to  keep
    available  the services of their present officers, employees and consultants
    and to  preserve  their  present relationships  with  customers,  suppliers,
    payors  and  other  persons  with  whom  they  have  a  significant business
    relationship;
 
        (b) Neither Amserv nor any Amserv Subsidiary shall (i) amend its charter
    or Bylaws, (ii) declare, set aside or pay any dividend or other distribution
    or payment  in cash,  securities or  property in  respect of  shares of  the
    Amserv  Common Stock, (iii) except for  redemptions of the Class B Preferred
    Shares required pursuant to and in accordance with the express provisions of
    the Certificate of Designations, Preferences and Rights relating thereto, as
    amended to the  date hereof  (the "Certificate of  Designations"), make  any
    direct  or indirect redemption, retirement, purchase or other acquisition of
    any  of  its  capital  stock  or  (iv)  split,  combine  or  reclassify  its
    outstanding shares of capital stock;
 
        (c)  Neither  Amserv  nor  any  Amserv  Subsidiary  shall,  directly  or
    indirectly, (i) issue, grant, sell or  pledge or agree or propose to  issue,
    grant,  sell or pledge any shares of, or rights or securities of any kind to
    acquire any shares of, the capital stock of Amserv or such Amserv Subsidiary
    except that Amserv may
 
                                      A-19
<PAGE>
    issue shares  of Amserv  Common Stock  upon the  exercise of  stock  options
    outstanding  on the date hereof pursuant to the terms thereof existing as of
    the date hereof,  (ii) other  than in the  ordinary course  of business  and
    consistent  with past practice, incur any material indebtedness for borrowed
    money, (iii) waive, release, grant or transfer any rights of material value,
    (iv) except as provided in clause  (v) below, merge or consolidate with  any
    person  or adopt a plan of  liquidation or dissolution, (v) acquire, propose
    to acquire or enter into an agreement to acquire any assets, stock or  other
    interests  of a third party, (vi)  transfer, lease, license, sell or dispose
    of a material  portion of assets  or any material  assets, (vii) permit  any
    material  revaluation  of  any  asset  (including,  without  limitation, any
    writing down of the value of inventory  or writing off of notes or  accounts
    receivable),  (viii)  change  any accounting  principles  or  methods except
    insofar as  may be  required  by changes  in generally  accepted  accounting
    principles  or (ix) mortgage or pledge any  of their assets or properties or
    subject any of their  assets or properties to  any material liens,  charges,
    encumbrances,  imperfections of title, security interests, options or rights
    or claims of others with respect thereto;
 
        (d)  Neither  Amserv  nor  any  Amserv  Subsidiary  will,  directly   or
    indirectly,  (i) increase the cash compensation payable or to become payable
    by it to any of its employees, officers, consultants or directors;  provided
    that  Amserv or  any Amserv  Subsidiary may  increase the  cash compensation
    payable to non-officer employees to the extent consistent with past practice
    and in no event to  a rate of total  annual compensation for any  individual
    that  would increase such individual's rate  of total annual compensation by
    more than five percent (5%) over  such individual's current such rate,  (ii)
    enter into, adopt or amend any stock option, stock purchase, profit sharing,
    pension,  retirement, deferred  compensation, restricted  stock or severance
    plan, agreement  or  arrangement for  the  benefit of  employees,  officers,
    directors  or consultants  of Amserv or  any Amserv  Subsidiary, (iii) enter
    into or amend any employment or consulting agreement, or (iv) make any  loan
    or advance to, or enter into any written contract, lease or commitment with,
    any  officer,  employee,  consultant or  director  of Amserv  or  any Amserv
    Subsidiary;
 
        (e)  Neither  Amserv  nor  any  Amserv  Subsidiary  shall,  directly  or
    indirectly,  assume, guarantee, endorse or  otherwise become responsible for
    the obligations of  any other  individual, corporation or  other entity,  or
    make  any loans or  advances to any individual,  corporation or other entity
    except  in  the  ordinary  course  of  business  and  consistent  with  past
    practices;
 
        (f) Neither Amserv nor any Amserv Subsidiary shall take any action which
    would  interfere with the abilities of the parties hereto to account for the
    Merger as a pooling of interests; and
 
        (g) Neither Amserv nor  any Amserv Subsidiary  shall authorize or  enter
    into  any agreement to do any of the things described in clauses (a) through
    (f) of this Section 5.2.
 
    5.3  ACCESS TO PROPERTIES AND RECORDS.  Each party shall afford to the other
and their  respective  accountants,  counsel  and  representatives  ("Respective
Representatives"), reasonable access during normal business hours throughout the
period  prior  to  the Effective  Time  to  all of  their  respective properties
(including,  without  limitation,  books,  contracts,  commitments  and  written
records)  and  shall make  reasonably  available their  respective  officers and
employees to answer fully and promptly questions put to them thereby;  provided,
however,  that no  investigation pursuant  to this  Section 5.3  shall alter any
representation or  warrant  of  any  party  hereto  or  the  conditions  to  the
obligations of the parties hereto.
 
    5.4  NO SOLICITATION, ETC.
 
    (a)  Prior to the Effective Time, Amserv agrees that it shall not, and shall
cause each of its  officers, directors, employees,  agents, legal and  financial
advisors   and  affiliates  not  to,  directly  or  indirectly,  make,  solicit,
encourage, initiate or enter  into any agreement or  agreement in principle,  or
announce  any intention to do any of the foregoing, with respect to any offer or
proposal to acquire all or a substantial part of
 
                                      A-20
<PAGE>
Amserv's business  and properties  or a  substantial amount  of Amserv's  equity
securities  or debt securities whether by  purchase, merger, purchase or assets,
tender offer,  exchange  offer,  business combination  or  otherwise  (any  such
proposal or offer being hereinafter referred to as a "Third Party Transaction").
 
    (b)  Prior to the Effective Time, Amserv and its Subsidiaries shall not, and
shall cause each  of their  officers, directors, legal  and financial  advisors,
agents  and  affiliates  not  to, directly  or  indirectly,  participate  in any
negotiations or discussions regarding, or  furnish any information with  respect
to,  or  otherwise  cooperate  in  any way  in  connection  with,  or  assist or
participate in, facilitate or encourage, any effort or attempt to effect or seek
to effect, a Third Party Transaction  with or involving any other person  unless
Amserv  shall have received an unsolicited written offer to effect a Third Party
Transaction and the Board of Directors  of Amserv determines in good faith  upon
the  advice of  outside legal  counsel that,  in the  exercise of  the fiduciary
obligations of the Board of Directors under applicable law, such information  is
required  to be provided to or such  discussions or negotiations are required to
be undertaken with the  person submitting such  Third Party Transaction.  Amserv
represents that it is not currently involved in any negotiations with any person
other than Star with respect to any Third Party Transaction and that it has been
in  full compliance with  the "no-shop" provisions  of the Letter  of Intent (as
hereinafter defined).
 
    (c) Prior to the  Effective Time, Amserv will  promptly communicate to  Star
the terms of any Third Party Transaction which it may receive and will keep Star
informed as to the status of any actions, including negotiations or discussions,
taken  pursuant  to clause  (b)  of this  Section  5.4. As  soon  as practicable
following the Effective Time, Amserv shall promptly request each person who  has
executed  a confidentiality agreement in connection  with its consideration of a
Third Party Transaction  to return  all confidential information  that has  been
furnished to such person by or on behalf of Amserv.
 
    5.5    EMPLOYEE  BENEFIT  PLANS.    Except  as  otherwise  provided  in this
Agreement, the Amserv  employee benefit  plans listed on  the Amserv  Disclosure
Schedule  which are  in effect  at the  date of  this Agreement  shall remain in
effect immediately following the Effective Time. Star and Amserv shall cooperate
in coordinating their respective benefit plans, and any Amserv employee  benefit
plan  may  be terminated  after  the Effective  Time,  to the  extent reasonably
comparable benefits  (including  credit for  past  service), considered  in  the
aggregate,  are made available to employees of Amserv under one or more employee
benefits plans of Star or any Star Subsidiary.
 
    5.6  TREATMENT OF OPTIONS.
 
    (a) Each Amserv Stock Option issued pursuant to Amserv's stock option  plans
(collectively,  the "Amserv  Option Plans") set  forth in  the Amserv Disclosure
Schedule, whether or  not vested or  exercisable, shall be  assumed by Star  and
shall  constitute  an option  to acquire,  on substantially  the same  terms and
conditions as were applicable under  such assumed Amserv Stock Option  (provided
that the options described in clause (iii) of the second sentence of Section 4.2
hereof  shall be exercisable in full commencing on the day immediately preceding
the Closing Date), a number of shares of Star Common Stock equal to the  product
of the Exchange Ratio and the number of shares of Amserv Common Stock subject to
such  Amserv Stock Option, at a price  per share equal to the aggregate exercise
price for the shares of Amserv Common Stock subject to such Amserv Stock  Option
divided  by  the  number  of full  shares  of  Star Common  Stock  deemed  to be
purchasable pursuant to such  Amserv Stock option;  provided, however, that  (i)
subject  to the provisions of clause (ii) below, the shares of Star Common Stock
that may  be purchased  upon exercise  of  such Amserv  Stock Option  shall  not
include  any fractional shares and,  upon the last such  exercise of such Amserv
Stock Option, a cash payment shall be made for any fractional shares based  upon
the  per share average of  the highest and lowest sale  price of the Star Common
Stock as reported on the  Nasdaq National Market on  the date of such  exercise,
and (ii) in the case of any Amserv Stock Option to which Section 421 of the Code
applies  by reason of its qualification under  Section 422 or Section 423 of the
Code ("Qualified  Stock  Options"),  the  option price,  the  number  of  shares
purchasable pursuant to such Amserv Stock Option and the terms and conditions of
exercise of such Amserv Stock Option shall be determined in order to comply with
Section  424 of the Code. As soon  as practicable after the Effective Time, Star
shall deliver to
 
                                      A-21
<PAGE>
holders of Amserv Stock Options  appropriate option agreements representing  the
right to acquire shares of Star Common Stock on substantially the same terms and
conditions  as contained in the outstanding Amserv Stock Options (subject to any
adjustments  required  by  the  preceding  sentence),  upon  surrender  of   the
outstanding  Amserv  Stock Options,  which  terms and  conditions  shall include
provision for  the right  of  "cashless exercise",  which  right shall  be  made
available  to each of the holders of Amserv  Stock Options on the date hereof to
the extent legally permissible  under Star's existing  stock option plans.  Star
shall  comply with  the terms of  the Amserv Option  Plans as they  apply to the
Amserv Stock Options assumed as set forth above.
 
    (b) Star shall take all corporate action necessary to reserve for issuance a
sufficient number of shares of Star  Common Stock for delivery upon exercise  of
the Amserv Stock Options assumed in accordance with this Section 5.6. Star shall
use  its  best efforts  to file  a registration  statement on  Form S-8  (or any
successor form)  or  another  appropriate  form,  effective  within  sixty  days
following the Effective Time with respect to shares of Star Common Stock subject
to  such Amserv Stock Options  and shall use all  reasonable efforts to maintain
the effectiveness of such registration statement or registration statements (and
maintain the current status of the prospectus or prospectuses contained therein)
for so long  as such Amserv  Stock Options remain  outstanding. With respect  to
those  individuals who subsequent to the Merger will be subject to the reporting
requirements under Section 16(a) of the Exchange Act, Star shall administer  the
Amserv  Option  Plans assumed  pursuant to  this  Section 5.6  in a  manner that
complies with rule 16b-3  promulgated under the Exchange  Act to the extent  the
applicable Amserv Option Plan complied with such rule prior to the Merger.
 
    5.7   EXISTING AGREEMENTS.  Star  and the Surviving Corporation shall insure
and guaranty that the provisions with  respect to indemnification by Amserv  and
the Amserv Subsidiaries now existing in favor of any present or former director,
officer, employee or agent (and their respective heirs and assigns) of Amserv or
any Amserv Subsidiary, respectively (the "Indemnified Parties"), as set forth in
their  respective charters or bylaws or  pursuant to other agreements (including
any insurance  policies),  shall  survive  the Merger,  shall  not  be  amended,
repealed  or modified in  any manner as  to adversely affect  the rights of such
Indemnified Parties and shall continue in full force and effect for a period  of
at least six years from the Effective Time; provided, however, that Star and the
Surviving  Corporation shall  be required to  maintain or  obtain such insurance
coverage only (i) if it is available for an annual premium not in excess of 125%
of the last annual premium  paid by Amserv or  the Amserv Subsidiaries prior  to
the  date of this Agreement (but in such case shall purchase as much coverage as
possible for an amount which  shall not exceed 125%  of the last annual  premium
paid  by Amserv or the Amserv Subsidiaries  prior to the date of the Agreement),
and (ii) for six years after the Effective Time. This Section 5.7 shall  survive
the  closing  of any  of the  transactions contemplated  hereby, is  intended to
benefit the officers and employees of  Amserv and of the Amserv Subsidiaries  at
the  Effective Time and each of the  Indemnified Parties (each of which shall be
entitled to enforce this Section 5.7 against Star and the Surviving Corporation,
as the case may be, as a  third-party beneficiary of this Agreement), and  shall
be binding on all successors and assigns of the Surviving Corporation.
 
    5.8     CONFIDENTIALITY.    The   existing  confidentiality  agreement  (the
"Confidentiality Agreement") between Amserv and  Star, and the Letter of  Intent
dated January 17, 1996 (the "Letter of Intent") between Amserv and Star are each
hereby  affirmed  by  Star  and  Amserv  and  the  terms  thereof  are  herewith
incorporated herein by  reference and shall  continue in full  force and  effect
until  the  Effective  Time  shall  have  occurred,  and  if  this  Agreement is
terminated or  if the  Effective Time  shall not  have occurred  for any  reason
whatsoever, each of the Confidentiality Agreement and the Letter of Intent shall
thereafter  remain  in  full force  and  effect  in accordance  with  its terms;
provided, however, to the extent there are any provisions in the Confidentiality
Agreement or the Letter of Intent inconsistent with the terms of this Agreement,
the terms of this Agreement shall control.  Each of Star and Amserv agrees  that
it  will not,  and will  cause its  Respective Representatives  not to,  use any
information obtained pursuant to  Section 5.3 for any  purpose unrelated to  the
consummation  of the transactions contemplated by this Agreement. Subject to the
requirements of law, each  party hereto will keep  confidential, and will  cause
its  Respective  Representatives  to  keep  confidential,  all  information  and
documents obtained  pursuant  to  Section  5.3  except  as  otherwise  consented
 
                                      A-22
<PAGE>
to  by the other party; provided, however, that neither Star nor Amserv shall be
precluded from  making  any  disclosure  which  it  deems  required  by  law  in
connection  with the Merger. In the event that any party is required to disclose
any information or  documents pursuant  to the  immediately preceding  sentence,
such  party  shall  promptly give  written  notice  of such  disclosure  that is
proposed to be made to the other party so that the parties can work together  to
limit  the disclosure  to the  greatest extent possible  and, in  the event that
either party  is  legally compelled  to  disclose  any information,  to  seek  a
protective  order  or  other appropriate  remedy  or both.  In  addition, Amserv
(subject to mutually agreeable  indemnification of Star)  shall be permitted  to
disclose  such  information regarding  the  transactions contemplated  hereby as
shall  be  required  in  connection   with  Amserv's  consent  solicitation   to
stockholders  in response to the  notice of intention to  act by written consent
received by Amserv from York Hannover Pharmaceuticals, Inc. on January 9,  1996;
provided  that the form and content of  each such disclosure shall be subject to
all of the  provisions of this  Section 5.8  and the prior  written approval  of
Star.  Upon any  termination of  this Agreement,  each of  Star and  Amserv will
collect and  deliver to  the  other party  all  documents obtained  pursuant  to
Section 5.3 or otherwise from such party or its Respective Representatives by it
or any of its Respective Representatives then in their possession and any copies
thereof.
 
    5.9   REASONABLE BEST EFFORTS.   Subject to the  terms and conditions herein
provided, the parties hereto shall: (i) if required by law, promptly make  their
respective  filings and thereafter make any other required submissions under the
HSR Act with respect to the Merger; (ii) use all reasonable efforts to cooperate
with one another in (A) determining which filings are required to be made  prior
to   the  Effective  Time  with,  and  which  consents,  approvals,  permits  or
authorizations ("Third Party Consents") are required to be obtained prior to the
Effective Time from, governmental or regulator authorities of the United  States
and  the several states  in connection with  the execution and  delivery of this
Agreement and the consummation of  the transactions contemplated hereby and  (B)
timely making all such filings and timely seeking all such Third Party Consents;
and  (iii) use all reasonable  efforts to take, or cause  to be taken, all other
action and  do, or  cause to  be done,  all other  things necessary,  proper  or
appropriate  to consummate and  make effective the  transactions contemplated by
this Agreement. If, at any time after the Effective Time, any further action  is
necessary  or desirable to carry  out the purpose of  this Agreement, the proper
officers and directors  of the,  parties hereto  shall take  all such  necessary
action.  No  party  hereto  shall  (i)  take  any  action  for  the  purpose  of
delaying, impairing or impeding the receipt  of any Third Party Consent, or  the
making  of  any required  filing or  registration  or the  mailing of  the Proxy
Statement or  (ii) take  any action  that could  reasonably have  the effect  of
preventing Star from accounting for the Merger as a pooling of interests. Amserv
shall use its best efforts to obtain the opinion referred to in Section 6.1(g).
 
    5.10   CERTIFICATION OF STOCKHOLDER VOTE.  At or prior to the closing of the
transactions contemplated by this  Agreement, Amserv and  Star shall deliver  to
each  other a certificate of their respective Secretary setting forth the number
of shares of Amserv Common Stock or Star Common Stock, as the case may be, voted
in favor of adoption of  this Agreement and consummation  of the Merger and  the
number  of shares  of Amserv  Common Stock  or Star  Common Stock  voted against
adoption of this Agreement and consummation of the Merger.
 
    5.11  MORA AGREEMENTS.  Star hereby agrees to honor the severance provisions
of that certain employment agreement dated February 27, 1987, as amended  August
8, 1989, and that certain consulting agreement dated August 23, 1990, as amended
August  4, 1992, both between Amserv and Eugene J. Mora (collectively, the "Mora
Agreements"). The  parties hereto  understand that  Star and  Mr. Mora  will  be
discussing possible modifications or amendments to the Mora Agreements; provided
that no such modifications or amendments will be entered into without the mutual
agreement  of  Star, Amserv  and Mr.  Mora;  and provided  further that  no such
modifications or  amendments will  be entered  into which  would jeopardize  the
ability  of the parties hereto to treat  the Merger as a tax free reorganization
or to utilize "pooling of interest" accounting for accounting purposes.
 
    5.12  AFFILIATE LETTERS.  At least 30 days prior to the Closing Date, Amserv
shall each deliver to Star  a list of names and  addresses of those persons  who
were,    in    the   reasonable    judgment    of   Amserv    at    the   record
 
                                      A-23
<PAGE>
date for its  stockholders' meeting  to approve the  Merger, "affiliates"  (each
such  person a "Rule 145 Affiliate") of Amserv within the meaning of Rule 145 of
the rules and  regulations promulgated  under the Securities  Act. Amserv  shall
provide  to Star such  information and documents as  Star may reasonably request
for purposes of reviewing such list. Amserv shall use all reasonable efforts  to
deliver  or cause to be delivered to Star,  prior to the Closing Date, from each
of its Rule 145 Affiliates identified in the foregoing list, an Affiliate Letter
in the  form attached  hereto as  Exhibit A.  Star shall  be entitled  to  place
legends  as specified in  such Affiliate Letters  on the certificates evidencing
any Star Common  Stock to be  received by  Rule 145 Affiliates  pursuant to  the
terms  of this Agreement, and to issue appropriate stop transfer instructions to
the transfer agent for such Star Common Stock, consistent with the terms of such
Affiliate Letters.  Following  reasonable  request therefor,  Star  shall,  upon
advice  of its counsel, cooperate with each Rule 145 Affiliate to eliminate such
legends and stop transfer instructions  in connection with proposed sales  under
Rule  145. After two years  from the Effective Time,  Star shall promptly notify
its transfer  agent to  eliminate such  legends and  stop transfer  instructions
unless  Star receives advice from its counsel that a Rule 145 Affiliate is as of
that date an "affiliate" of Star.
 
    5.13  LISTING  APPLICATION.  Star  will use its  reasonable best efforts  to
cause  the Star  Common Stock  to be  issued pursuant  to this  Agreement in the
Merger, to be listed for trading on the Nasdaq National Market.
 
    5.14  SUPPLEMENTAL  DISCLOSURE SCHEDULES.   Each  of Star  and Amserv  shall
supplement  their respective  Disclosure Schedules delivered  in connection with
this Agreement  as of  the Effective  Time to  the extent  necessary to  reflect
matters  permitted by, or consented to by, the other party under this Agreement.
In addition, from time  to time prior  to the Effective Time,  each of Star  and
Amserv  will promptly  deliver to the  other party such  amended or supplemental
Disclosure Schedules as  may be  necessary to  make the  Schedules accurate  and
complete  in all material respects as  of the Effective Time; provided, however,
that no such disclosure shall have any effect for the purpose of determining the
satisfaction of the conditions set forth in Article VI of this Agreement.
 
    5.15  NO ACTION.  Except as contemplated by this Agreement, no party  hereto
will,  nor will  either such party  permit any  of its Subsidiaries  to, take or
agree or commit to take any action that is reasonably likely to make any of  its
representations  or warranties hereunder  inaccurate in any  material respect at
the date made (to the extent so limited), or as of the Effective Time.
 
    5.16  CONDUCT OF BUSINESS OF MERGER  SUB.  Merger Sub shall not conduct  any
business  from the date of  this Agreement, other than  to consummate the Merger
and the transactions contemplated by this Agreement.
 
    5.17  DIRECTORS  OF STAR.   Star agrees  that promptly  after the  Effective
Time, Star shall take such reasonable action as may be necessary to cause Eugene
J.  Mora to be appointed to  the Board of Directors of  Star and to be nominated
for election by the shareholders of Star to  such Board at each of the next  two
annual meetings of such shareholders following the Effective Time for service on
such  Board  until  the  next  such annual  meeting  following  such  two annual
meetings.
 
    5.18  NOTIFICATION OF CERTAIN MATTERS; DELIVERY OF FINANCIAL INFORMATION.
 
    (a) Star and Merger Sub agree that they shall give prompt notice to  Amserv,
and  Amserv agrees that it  shall give prompt notice to  Star and Merger Sub, of
(i) any known  breach of  any representations  or warranties  contained in  this
Agreement  at any time from  the date hereof to the  Effective Time and (ii) any
material failure of  Star, Merger  Sub or  Amserv, as the  case may  be, or  any
officer,  director, employee  or agent  thereof, to  comply with  or satisfy any
covenant, condition  or  agreement  to  be complied  with  or  satisfied  by  it
hereunder;  provided,  however,  that  failure to  give  such  notice  shall not
constitute a waiver of any defense that may be validly asserted.
 
    (b) Each of  Star and  Amserv shall furnish  the other  with all  financial,
operating  and other information and data as Star or Amserv, as the case may be,
through its  officers, employees  or agents,  may reasonably  request and  shall
promptly  furnish to  the other party  a copy  of (i) each  report, schedule and
other document
 
                                      A-24
<PAGE>
filed or received by it during such  period pursuant to the requirements of  the
federal securities laws and (ii) monthly operating and financial reports as such
party  shall  reasonably request  from time  to time,  when such  reports become
available.
 
    5.19  CLASS B PREFERRED SHARES.  Amserv agrees that it timely shall make all
redemptions of  the  Class  B  Preferred Shares  required  pursuant  to  and  in
accordance with the express provisions of the Certificate of Designations.
 
    5.20  CHANGES IN CAPITAL STOCK.  Prior to the Effective Time, Star shall not
(i)  disclose, set aside or pay any dividend or other distribution or payment in
cash, securities or property in respect  of shares of Star Common Stock  (except
such  dividends or  other distributions  or payments  as were  declared prior to
January 1,  1996), (ii)  make  any direct  or indirect  redemption,  retirement,
purchase  or other acquisition of any of its capital stock, (iii) split, combine
or reclassify its  outstanding shares of  capital stock, or  (iv) other than  in
connection with a business combination, the acquisition or disposition of assets
or  a  similar transaction,  grant options  to purchase  an aggregate  number of
shares of Star Common Stock in excess of the number of such shares as  currently
are  authorized  by the  shareholders of  Star  to be  issued pursuant  to stock
options; provided, however, that, prior to  the Effective Time, no such  options
shall be granted to any current officers of Star.
 
    5.21   POOLING; TAX-FREE NATURE.   None of Star,  Merger Sub and Amserv, nor
any of their  respective Subsidiaries  or other  affiliates shall  (i) take  any
action,  or fail to take any action,  that would jeopardize the treatment of the
Merger as a "pooling of interests" for accounting purposes or (ii) take, or fail
to take,  any action  that would  jeopardize qualification  of the  Merger as  a
reorganization  described in Sections 368(a)(1)(A) and 368(a)(2)(E) of the Code.
For purposes  of  ensuring  that  the  Merger will  be  treated  as  a  tax-free
reorganization  under  Sections 368(a)(1)(A)  and  368(a)(2)(E) of  the Internal
Revenue Code, each  of Star and  Merger Sub on  the one hand  and Amserv on  the
other agrees to deliver to Latham & Watkins, counsel to Amserv, a certificate of
an  authorized  officer containing  all representations  and warranties  by such
corporation necessary to enable such firm to deliver its opinion referred to  in
Section 6.1(g).
 
                                   ARTICLE VI
                              CONDITIONS PRECEDENT
 
    6.1    CONDITIONS TO  EACH PARTY'S  OBLIGATION  TO EFFECT  THE MERGER.   The
respective obligations of each  party to effect the  Merger shall be subject  to
the fulfillment at or prior to the Effective Time of the following conditions:
 
        (a)  The Registration Statement shall  have been declared effective, and
    no stop order  suspending the  effectiveness of  the Registration  Statement
    shall  have been issued  by the Commission  or shall be  continuing to be in
    effect, and no  proceedings for that  purpose shall have  been initiated  or
    threatened  by the Commission. Star shall have received all state securities
    laws or "blue sky" permits and  authorizations necessary to issue the  Share
    Consideration  pursuant  to  the Merger  and  the  transactions contemplated
    hereby.
 
        (b) This  Agreement and  the Merger  contemplated hereby  and any  other
    action  necessary to  consummate the transactions  contemplated hereby shall
    have been approved and adopted by the  requisite vote of (i) the holders  of
    the  outstanding shares of the Amserv  Common Stock entitled to vote thereon
    at the Amserv Meeting and (ii) the holders of the outstanding shares of Star
    Common Stock entitled to vote thereon at the Star Meeting.
 
        (c) No governmental authority  or other agency,  commission or court  of
    competent  jurisdiction shall have enacted, issued, promulgated, enforced or
    entered any statute,  rule, regulation, injunction  or other order  (whether
    temporary,  preliminary or permanent) which is  in effect and has the effect
    of
 
                                      A-25
<PAGE>
    making the  Merger  illegal or  otherwise  prohibiting consummation  of  the
    transactions  contemplated by this Agreement; provided, however, that, prior
    to invoking  this condition,  each  party hereto  shall use  all  reasonable
    efforts to have such statute, rule, regulation, injunction or order vacated.
 
        (d)  Any waiting period applicable to the Merger under the HSR Act shall
    have expired or been terminated without action by the Justice Department  or
    the Federal Trade Commission to prevent consummation of the Merger.
 
        (e)  The shares of  Star Common Stock  issuable to Amserv's stockholders
    and option holders in  the Merger or thereafter  shall have been  authorized
    for listing on the Nasdaq National Market, upon official notice of issuance.
 
        (f)  Star shall have received from Holtz  Rubinstein & Co., LLP a letter
    to the effect that the Merger qualifies for "pooling of interests" treatment
    for financial reporting purposes  and that such  treatment is in  accordance
    with generally accepted accounting practices.
 
        (g) Amserv shall have received the opinion, addressed to them, of Latham
    &  Watkins, counsel to Amserv, dated as of the Effective Time, substantially
    to the  effect that  (i) the  Merger will  constitute a  reorganization  for
    United  States Federal  income tax  purposes within  the meaning  of Section
    368(a) of the Code, (ii) Star, Merger Sub and Amserv each will be a party to
    the reorganization within the meaning of  Section 368(b) of the Code,  (iii)
    no gain or loss will be recognized by Star, Merger Sub or Amserv pursuant to
    the  Merger, and (iv) no gain or  loss will be recognized by stockholders of
    Amserv to  the extent  that their  shares  of capital  stock of  Amserv  are
    converted  into and  exchanged solely for  Star Common Stock  (except to the
    extent that cash  is received  in lieu of  a fractional  share interest  and
    except  with respect  to the  conversion and exchange  of any  shares of the
    capital stock of Amserv that were acquired by the holder thereof pursuant to
    any employee  stock option,  employee stock  purchase plan  or otherwise  as
    compensation).  In rendering such opinion, Latham  & Watkins may require and
    rely upon representations contained in the certificates of officers of Star,
    Merger Sub and Amserv referred to in Section 5.21.
 
    6.2  CONDITIONS  TO THE  OBLIGATION OF  AMSERV TO  EFFECT THE  MERGER.   The
obligation of Amserv to effect the Merger shall be subject to the fulfillment or
waiver  by Amserv at or prior to  the Effective Time of the following additional
conditions:
 
        (a) Each of  Star and Merger  Sub shall have  performed in all  material
    respects its obligations under this Agreement required to be performed by it
    on or prior to the Effective Time pursuant to the terms hereof.
 
        (b)  All representations  or warranties of  Star and Merger  Sub in this
    Agreement which are qualified with respect  to a Material Adverse Effect  on
    Star  or materiality shall be true and correct, and all such representations
    or warranties that are  not so qualified  shall be true  and correct in  all
    material  respects, in each  case as if such  representation or warranty was
    made as  of  the  Effective  Time,  except  to  the  extent  that  any  such
    representation  or warranty is  made as of  a specified date,  in which case
    such representation or warranty shall have been true and correct as of  such
    specified  date  and, with  respect  to Section  3.3,  to the  extent  it is
    permitted to change by the provisions of this Agreement.
 
        (c) From the date  hereof through the Effective  Time, there shall  have
    been  no  material adverse  change in  the  financial condition,  results of
    operations,  properties,  business  or  prospects  of  Star  and  the   Star
    Subsidiaries taken as a whole.
 
        (d)  Each of Star and  Merger Sub shall have  delivered a certificate of
    its President  or Vice  President and  its Chief  Financial Officer  to  the
    effect set forth in clauses (a), (b) and (c) of this Section 6.2.
 
        (e) Amserv shall have received from Parker Chapin Flattau & Klimpl, LLP,
    counsel to Star, opinion or opinions dated as of the Effective Time covering
    the matters set forth in Exhibit B hereto.
 
                                      A-26
<PAGE>
        (f)  Latham & Watkins, counsel to Amserv, shall have received the letter
    from Star and Merger Sub referred to in Section 5.21.
 
    6.3  CONDITIONS  TO THE OBLIGATIONS  OF STAR  AND MERGER SUB  TO EFFECT  THE
MERGER.   The obligations of  Star and Merger Sub to  effect the Merger shall be
subject to the fulfillment or waiver by  Star at or prior to the Effective  Time
of the following additional conditions:
 
        (a)  Amserv shall  have performed in  all material respects  each of its
    obligations under this Agreement required to be performed by it on or  prior
    to the Effective Time pursuant to the terms hereof.
 
        (b)  All representations or warranties of Amserv in this Agreement which
    are qualified with respect to a Material Adverse Effect or materiality shall
    be true and correct, and all such representations or warranties that are not
    so qualified shall  be true and  correct in all  material respects, in  each
    case  as if such  representation or warranty  were made as  of the Effective
    Time except to the extent that  any such representation or warranty is  made
    as  of a specified date, in which case such representation or warranty shall
    have been true and  correct as of  such specified date  and with respect  to
    Section  4.3, to the  extent permitted to  change by the  provisions of this
    Agreement.
 
        (c)  All  material  federal,  state,  local  and  foreign   governmental
    consents,  approvals  and  filings required  to  permit the  Merger  and the
    consummation of the transactions contemplated  by this Agreement shall  have
    been  received or made and any  applicable waiting period shall have expired
    or been terminated without  the imposition of conditions  that are or  would
    become  applicable to Amserv or the Amserv  Subsidiaries or Star or the Star
    Subsidiaries and which would have a  Material Adverse Effect on Amserv or  a
    Material Adverse Effect on Star.
 
        (d)  Amserv shall have obtained all  Third Party Consents (applicable to
    Amserv or any Amserv Subsidiary) contemplated by subsection (ii) of  Section
    5.9, except for such Third Party Consents which, if not obtained, would not,
    individually or in aggregate, have a Material Adverse Effect on Amserv.
 
        (e)  From the date  hereof through the Effective  Time, there shall have
    been no  material adverse  change  in the  financial condition,  results  of
    operations,  properties,  business or  prospects  of Amserv  and  the Amserv
    Subsidiaries taken as a whole.
 
        (f) Amserv shall have delivered a  certificate of its President or  Vice
    President  and  its  Chief Financial  Officer  to  the effect  set  forth in
    paragraphs (a), (b), (c) and (e) to this Section 6.3.
 
        (g) Star shall have received from  Latham & Watkins, counsel to  Amserv,
    an  opinion or opinions dated as of  the Effective Time covering the matters
    set forth in Exhibit C hereto.
 
        (h) Merger Sub shall have  received letters of resignation addressed  to
    Amserv  from the members of Amserv's  board of directors, which resignations
    shall be effective as of the Effective Time.
 
        (i) Each of Star  and Amserv shall have  received the Affiliate  Letters
    from each of the Rule 145 Affiliates, as provided in Section 5.12.
 
                                  ARTICLE VII
                                  TERMINATION
 
    7.1   TERMINATION BY MUTUAL  CONSENT.  This Agreement  may be terminated and
the Merger may be abandoned at any  time prior to the Effective Time, before  or
after  the approval of this Agreement by  the stockholders of Amserv or Star, by
the mutual consent of Star and Amserv.
 
                                      A-27
<PAGE>
    7.2  TERMINATION BY EITHER STAR OR AMSERV.  This Agreement may be terminated
and the Merger may be  abandoned by action of the  Board of Directors of  either
Star or Amserv if:
 
        (a)  The Merger shall not have been consummated by July 31, 1996, unless
    such failure of consummation is due to the failure of the terminating  party
    to  perform or  observe any  covenant, agreement  or condition  hereof to be
    performed or  observed  by it  at  or  before the  Closing  Date;  provided,
    however,  that in the event that the  approval referred to in clause (ii)(C)
    of the first sentence  of Section 3.6  has not been  obtained by such  date,
    then  such date  shall be extended  to November 30,  1996; provided further,
    that (i)  upon such  extension and  the  delivery of  a certificate  by  the
    President  or Vice President and Chief Financial Officer of each of Star and
    Merger Sub to the  effect that from  the date hereof  through July 31,  1996
    there shall have been no material adverse change in the financial condition,
    results  of operations,  properties, business or  prospects of  Star and the
    Star Subsidiaries  taken as  a  whole (which  certificates shall  be  deemed
    representations of Star and Merger Sub for purposes of this Agreement), then
    the  conditions set forth in  Section 6.2(c) shall not  be conditions to the
    obligations of Amserv to effect the Merger, and (ii) upon such extension and
    delivery of  a certificate  by the  President or  Vice President  and  Chief
    Financial  Officer of Amserv to the effect that from the date hereof through
    July 31,  1996 there  shall have  been  no material  adverse change  in  the
    financial   condition,  results  of   operations,  properties,  business  or
    prospects of Amserv  and the  Amserv Subsidiaries  taken as  a whole  (which
    certificate  shall be deemed representations of  Amserv for purposes of this
    Agreement), then the  conditions set forth  in Section 6.3(e)  shall not  be
    conditions to the obligations of Star to effect the Merger;
 
        (b) The approval of the stockholders of each of Amserv and Star required
    by  Section 6.1(b) shall not  have been obtained at  a meeting duly convened
    therefore or at any adjournment thereof; or
 
        (c) A United States federal or state court of competent jurisdiction  or
    United  States federal  or state  governmental regulatory  or administrative
    agency or commission shall have issued  an order, decree or ruling or  taken
    any other action permanently restraining, enjoining or otherwise prohibiting
    the  transactions  contemplated by  this Agreement  and such  order, decree,
    ruling or other action shall have become final and non-appealable; provided,
    that the party seeking to terminate  this Agreement pursuant to this  clause
    (c)  shall have used all reasonable efforts to remove such injunction, order
    or decree; provided, in the case of a termination pursuant to clauses (a) or
    (b) above, the  terminating party shall  not have breached  in any  material
    respect  its obligations under this Agreement  in any manner that shall have
    proximately contributed to the failure to consummate the Merger by  December
    31,  1996 and;  provided further,  that if  any condition  to this Agreement
    shall fail to be satisfied  by reason of the  existence of an injunction  or
    order  of any  court or  governmental or  regulatory body  resulting from an
    action or proceeding  commenced by any  party which is  not a government  or
    governmental  authority, then  at the request  of either  party the deadline
    date referred to above  shall be extended for  a reasonable period of  time,
    not  in excess of  120 days, to  permit the parties  to have such injunction
    vacated or order reversed.
 
    7.3  TERMINATION BY AMSERV.  This Agreement may be terminated and the Merger
may be abandoned at any  time prior to the Effective  Time, before or after  the
adoption  and  approval by  the stockholders  of Amserv  referred to  in Section
6.1(b), by action of the Board of Directors of Amserv, if:
 
        (a) The Board of Directors of  Amserv determines in good faith with  the
    advice  of  outside legal  counsel that,  in the  exercise of  the fiduciary
    obligations of the Board of Directors under applicable law, such termination
    is required by reason of a Third Party Transaction;
 
        (b) There has been a breach by Star or Merger Sub of any  representation
    or  warranty  contained in  this Agreement  the  effect of  which is  a Star
    Material Adverse Effect; or
 
                                      A-28
<PAGE>
        (c) There  has been  a breach  in any  material respect  of any  of  the
    covenants  or agreements set  forth in this  Agreement on the  part of Star,
    which breach is  not curable or,  if curable,  is not cured  within 30  days
    after written notice of such breach is given by Amserv to Star.
 
    7.4   TERMINATION BY STAR.  This  Agreement may be terminated and the Merger
may be abandoned at any time prior to the Effective Time, by action of the Board
of Directors of Star, if:
 
        (a) The Board of  Directors of Amserv shall  have withdrawn or  modified
    its  determination that the Merger  is fair to and  in the best interests of
    Amserv's stockholders or its approval or recommendation of this Agreement or
    the Merger, in any event due to the existence of a Third Party  Transaction,
    or shall have recommended a Third Party Transaction to Amserv stockholders;
 
        (b)  There has been a breach by Amserv of any representation or warranty
    contained in  this Agreement  the  effect of  which  is an  Amserv  Material
    Adverse Effect; or
 
        (c)  There  has been  a breach  in any  material respect  of any  of the
    covenants or agreements set forth in  this Agreement on the part of  Amserv,
    which  breach is  not curable or,  if curable,  is not cured  within 30 days
    after written notice of such breach is given by Star to Amserv.
 
    7.5  EFFECT OF TERMINATION AND ABANDONMENT.
 
    (a) In the  event that this  Agreement is terminated  by Amserv pursuant  to
Section  7.3(a)  or  by  Star  pursuant to  Section  7.4(a),  then  Amserv shall
promptly, but in no event  later than ten days after  the date of such  request,
pay Star a fee of $250,000 plus reasonable out-of-pocket fees and expenses up to
$200,000,  which amount  shall be  payable by wire  transfer of  same day funds.
Amserv acknowledges that the agreements contained in this Section 7.5(a) are  an
integral  of the transactions contemplated in  this Agreement, and that, without
these agreements, Star and Merger Sub would not enter into this Agreement.
 
    (b) In the event of termination of this Agreement and the abandonment of the
Merger pursuant to this Article 7,  all obligations of the parties hereto  shall
terminate,  except the obligations  of the parties pursuant  to this Section 7.5
and except as provided in Section 8.3. Moreover, in the event of termination  of
this  Agreement pursuant to  Section 7.3 or 7.4,  nothing herein shall prejudice
the ability of the non-breaching party from seeking damages from any other party
for any breach of this Agreement, including without limitation, attorneys,  fees
and the right to pursue any remedy at law or in equity.
 
                                  ARTICLE VIII
                                 MISCELLANEOUS
 
    8.1   AMENDMENT.   Subject to the  applicable provisions of  state law, this
Agreement may be amended by the parties  hereto solely by action taken by  their
respective  Boards of Directors. This Agreement may  not be amended except by an
instrument in writing signed on behalf of each of the parties hereto.
 
    8.2  WAIVER.  At any time  prior to the Effective Time, the parties  hereto,
by action taken by their respective Boards of Directors, may (i) extend the time
for the performance of any of the obligations or other acts of the other parties
hereto, (ii) waive any inaccuracies in the representations and warranties of the
other  party contained herein or in any documents delivered pursuant hereto, and
(iii) waive  compliance  by  the other  party  with  any of  the  agreements  or
conditions  herein. Any  agreement on  the part  of a  party hereto  to any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such  party. No waiver by either  party of any default  with
respect  to any provision, condition or requirement hereof shall be deemed to be
a waiver of any other provision, condition or requirement hereof; nor shall  any
delay  or omission of either party to exercise any right hereunder in any manner
impair the exercise of any such right accruing to it thereunder.
 
    8.3  SURVIVAL.  All representations, warranties and agreements contained  in
this  Agreement or in any instrument  delivered pursuant to this Agreement shall
terminate and be extinguished at the Effective Time
 
                                      A-29
<PAGE>
or the earlier date of termination of  this Agreement pursuant to Section 7,  as
the  case may be, except that the agreements  set forth in Article I, Article II
and in Sections  5.4, 5.7,  5.8, 8.4  and 8.7  will survive  the Effective  Time
indefinitely  and  those set  forth in  Sections  7.5 and  8.7 will  survive the
termination of  this Agreement  indefinitely, and  other than  any covenant  the
breach of which has resulted in the termination of this Agreement.
 
    8.4  EXPENSES AND FEES.  Whether or not the Merger is consummated, all costs
and  expenses incurred by  the parties hereto in  connection with this Agreement
and the transactions contemplated  hereby shall be paid  by the party  incurring
such expenses except as expressly provided herein and except that (i) the filing
fee  in connection  with the  HSR Act  filing, if  any, (ii)  the filing  fee in
connection with the filing of the Registration Statement or Proxy Statement with
the Commission and (iii) the expenses  incurred in connection with printing  and
mailing  the Registration  Statement and  the Proxy  Statement, shall  be shared
equally by Star and Amserv.
 
    8.5  NOTICES.  All notices  and other communications given or made  pursuant
hereto  shall be in writing and shall be deemed to have been given or made if in
writing and  delivered  personally  or  sent by  registered  or  certified  mail
(postage  prepaid, return receipt requested) or  by telecopier to the parties at
the of following addresses:
 
<TABLE>
<S>                      <C>
If to Merger Sub or      Star Multi Care Services, Inc.
Star:                    99 Railroad Station Plaza
                         Hicksville, New York 11801
                         Attention: Chief Executive Officer
                         Telecopier: (718) 802-1525
With copies to:          Parker Chapin Flattau & Klimpl,
                         LLP
                         1211 Avenue of the Americas
                         New York, New York 10036
                         Attention: James Alterbaum, Esq.
                         Telecopier: (212) 704-6288
If to Amserv:            Amserv Healthcare, Inc.
                         3252 Holiday Court #264
                         La Jolla, California 92037
                         Attention: Chief Executive Officer
                         Telecopier: (619) 597-1002
with copies to:          Latham & Watkins
                         701 "B" Street
                         Suite 2100
                         San Diego, California 92101
                         Attention: Scott N. Wolfe, Esq.
                         Telecopier: (619) 696-7419
</TABLE>
 
or at such other addresses as shall be furnished by the parties by like  notice,
and  such notice or communication shall be deemed  to have been given or made as
of the date so delivered or mailed.
 
    8.6  HEADINGS.   The headings contained in  this Agreement are inserted  for
convenience only and do not constitute a part of this Agreement.
 
    8.7    PUBLICITY.   The  parties hereto  shall  not, and  shall  cause their
affiliates not to, issue or cause the publication of any press release or  other
announcement  with respect  to the Merger  or this  Agreement without consulting
with all other parties and their respective counsel; provided, however, that  to
the  extent either party believes on the  advice of counsel that it is obligated
under federal  or state  law to  issue or  cause the  publication of  any  press
release  or other announcement, such party shall only be obligated to so consult
if it is possible to do so without violating any such legal obligation.
 
                                      A-30
<PAGE>
    8.8  ENTIRE AGREEMENT.  This Agreement and the other agreements referred  to
herein constitute the entire agreement among the parties and supersede all other
prior  agreements and understandings, both written  and oral, among the parties,
or any of them, with respect to the subject matter hereof.
 
    8.9  ASSIGNMENT.  This Agreement and  all of the provisions hereof shall  be
binding  upon  and  inure  to  the benefits  of  the  parties  hereto  and their
respective successors and permitted assigns.  Neither this Agreement nor any  of
the  rights, interests or  obligations shall be  assigned by any  of the parties
hereto without the prior written consent of the other parties. This Agreement is
not intended to confer upon any other person any rights or remedies hereunder.
 
    8.10   COUNTERPARTS.    This  Agreement  may be  executed  in  one  or  more
counterparts,  all of which shall  be considered one and  the same agreement and
each of which shall be deemed an original.
 
    8.11  INVALIDITY;  SEVERABILITY.  In  the event that  any provision of  this
Agreement  shall be deemed  contrary to law  or invalid or  unenforceable in any
respect by a  court of  competent jurisdiction, the  remaining provisions  shall
remain  in full force  and effect to  the extent that  such provisions can still
reasonably be given effect in accordance with the intentions of the parties, and
the invalid and unenforceable provisions shall be deemed, without further action
on the part of the parties, modified,  amended and limited solely to the  extent
necessary to render the same valid and enforceable.
 
    8.12   GOVERNING  LAW.   The validity  and interpretation  of this Agreement
shall be governed by the laws of the State of Delaware, without reference to the
conflict of law principles thereof.
 
    IN WITNESS WHEREOF, Star, Merger Sub  and Amserv have caused this  Agreement
to  be signed by their respective officers  thereunto duly authorized, all as of
the date first written above.
 
<TABLE>
<S>                                           <C>
           AMSERV HEALTHCARE INC.                    STAR MULTI CARE SERVICES, INC.
 
           By: /s/ EUGENE J. MORA                      By: /s/ STEPHEN STERNBACH
              Eugene J. Mora,                              Stephen Sternbach,
    Chairman and Chief Executive Officer          Chairman and Chief Executive Officer
 
                                              AHI ACQUISITION CORP.
 
                                                       By: /s/ STEPHEN STERNBACH
                                                           Stephen Sternbach,
                                                  Chairman and Chief Executive Officer
</TABLE>
 
                                      A-31
<PAGE>
                                                                       EXHIBIT A
                                                             TO MERGER AGREEMENT
 
                                                                          , 1996
 
Star Multi Care Services, Inc.
99 Railroad Station Plaza
Hicksville, New York 11801
 
Gentlemen:
 
    Reference  is made to  the provisions of  the Agreement and  Plan of Merger,
dated as of February 9, 1996 (together with any amendments thereto, the  "Merger
Agreement")  among  Star  Multi  Care  Services,  Inc.  a  New  York corporation
("Star"), AHI  Acquisition  Corp., a  Delaware  corporation and  a  wholly-owned
subsidiary  of Star (the  "Merger Sub") and Amserv  Healthcare, Inc., a Delaware
corporation, pursuant to which  Merger Sub will be  merged with and into  Amserv
(the  "Merger"),  with  Amserv  continuing  as  the  surviving  corporation (the
"Surviving Corporation"). This letter consists of the undertakings  contemplated
by  Section  5.12  of  the  Merger Agreement  and  are  designed  to  assure (1)
compliance with Rule 145 ("Rule 145"), and  (2) that the Merger will be  treated
as a "pooling of interests" for accounting purposes.
 
    1.  Compliance with Rule 145. I represent, warrant and covenant as follows:
 
        (a) I understand that I may be deemed to be an "affiliate" of Amserv, as
    such  term is defined for purposes of Rule 145, and that the transferability
    of the shares of common stock, par value $.001 per share, of Star (the "Star
    Common Stock"), which I will receive upon the consummation of the Merger  in
    exchange  for my shares  of common stock,  par value $.01  per share, of the
    Company (the "Amserv Common Stock"), is therefore subject to the  provisions
    of  Rule 145. Nothing herein shall be construed as an admission that I am an
    affiliate.
 
        (b) Appendix A attached  hereto sets forth all  shares of Amserv  Common
    Stock  and Star Common Stock owned by  me, including all Amserv Common Stock
    as to which I have sole or shared voting or investment power and all rights,
    options and warrants to acquire Amserv Common Stock owned or held by me.
 
        (c) I will not sell, pledge, transfer or otherwise dispose of any shares
    of Star Common Stock issued to me pursuant to the Merger, except pursuant to
    an effective  registration  statement or  in  compliance with  Rule  145  or
    another exemption from the registration requirements of the Securities Act.
 
        (d)  I understand that Star is under no obligation to register the sale,
    transfer, pledge  or  other disposition  of  the  Star Common  Stock  to  be
    received  by me upon consummation of the  Merger or to take any other action
    necessary for  the purpose  of  making an  exemption from  the  registration
    requirements of the Act available for the resale of the Star Common Stock to
    be received by me upon consummation of the Merger.
 
        (e)  I understand that Star will  impose stop transfer instructions with
    respect to the Common Stock  to be received by  me upon consummation of  the
    Merger  and  that  a  restrictive  legend  will  be  placed  on certificates
    delivered to  me evidencing  such  Star Common  Stock in  substantially  the
    following form:
 
           "This  certificate and the shares represented hereby have been issued
       pursuant to a transaction governed  by Rule 145 ("Rule 145")  promulgated
       under  the Securities Act of 1933, as amended (the "Act"), and may not be
       sold or otherwise disposed of unless registered under the Act pursuant to
       a Registration Statement  in effect at  the time or  unless the  proposed
       sale  or disposition can be  made in compliance with  Rule 145 or without
       registration in reliance on another exemption therefrom."
 
                                      A-32
<PAGE>
    2.  Pooling  of Interest Accounting.  I represent, warrant  and covenant  as
follows:
 
    From and after 30 days prior to the effective date of the Merger until after
such  time as results  covering at least  30 days of  combined operations of the
Surviving Corporation and Star  have been published  by Star, in  the form of  a
quarterly  earnings report, an  effective registration statement  filed with the
Securities and Exchange  Commission (the  "SEC"), a report  to the  SEC on  Form
10-K,  10-Q or 8-K, or  any other public filing  or announcements which includes
the combined  results of  operations, I  will not  sell, transfer  or  otherwise
dispose  of any securities of Amserv or of  any Star Common Stock received by me
in the Merger or  other shares of  capital stock of Star  except that, with  the
written  consent of  Star and (prior  to the  effective date of  the Merger) the
Company to assure  compliance with applicable  "pooling of interest"  accounting
requirements  (which consents  shall not be  unreasonably withheld),  I may make
transfers or other dispositions that, taking  into account the actions of  other
affiliates  of both Amserv and  Star, are (a) permitted  by SEC Staff Accounting
Bulletin No. 76 (a copy of which is  annexed hereto as Appendix B) and (b)  will
not  otherwise prevent  Star from  accounting for  the Merger  as a  "pooling of
interests".
 
    3.  Miscellaneous. I hereby represent, warrant and covenant as follows:
 
        (a) I have full power and  authority to execute this Agreement, to  make
    the  representations,  warranties  and  covenants  herein  contained  and to
    perform my obligations hereunder.
 
        (b) I understand  the requirements  of this letter  and the  limitations
    imposed  upon the  sale, pledge, transfer  or other disposition  of the Star
    Common Stock.
 
        (c) The  receipt of  this letter  by  Star is  an inducement  to  Star's
    obligation to consummate the Merger under the Merger Agreement.
 
        (d)  All of the above representations  are true, correct and complete on
    the date hereof and will continue  to be true, correct and complete  through
    and  including the time of the transaction. If any of the representations in
    this letter  cease  to  be true  at  any  time  prior to  the  time  of  the
    transaction,  I will so notify you immediately in writing (and in all events
    before the time of the transactions).
 
                                          Very truly yours,
 
                                      A-33
<PAGE>
                                                                       EXHIBIT B
                                                             TO MERGER AGREEMENT
 
                 OPINION OF PARKER CHAPIN FLATTAU & KLIMPL, LLP
 
    1.  Each of Star and the Star Subsidiaries is a corporation duly  organized,
validly  existing and  in good  standing under the  laws of  the jurisdiction of
incorporation, with all requisite corporate power and authority to own,  operate
and  lease  its properties  and to  carry on  its  business as  it is  now being
conducted, and is qualified or licensed to  do business and is in good  standing
in  each  jurisdiction in  which the  failure  to be  so qualified  or licensed,
individually or in the aggregate, would have a Material Adverse Effect on  Star.
Section  3.1 of  the Star Disclosure  Schedule contains a  complete and accurate
list of all of the Star Subsidiaries. Neither Star nor any Star Subsidiary is in
violation of any provision of its  Certificate of Incorporation or Bylaws  which
could  have a Material Adverse Effect on  Star. To our knowledge, Merger Sub has
not engaged in any business nor  has it incurred any liabilities or  obligations
since  it  was  incorporated  other  than relating  to  this  Agreement  and the
transactions contemplated hereby.
 
    2.  The Star Common Stock to  be issued pursuant to the Merger, when  issued
in  accordance with the  terms and conditions  of the Merger  Agreement, will be
duly authorized, validly issued, fully paid and nonassessable.
 
    3.  As of the date hereof, the authorized capital stock of Star consists  in
its entirety of (i) 10,000,000 shares of Star Common Stock, $.001 par value, and
(ii)  5,000,000 shares of  Preferred Stock, $1.00  par value. As  of February 1,
1996, 2,309,675 shares  of Star Common  Stock and no  shares of Preferred  Stock
were  issued and  outstanding, (ii)  options to  acquire 570,462  shares of Star
Common Stock  were outstanding  under  all stock  option  plans of  Star,  (iii)
1,099,603  shares were  reserved for issuance  pursuant to  all employee benefit
plans of Star and (iv) warrants to purchase 112,922 shares of Star Common  Stock
were  outstanding. As of the date hereof, the authorized capital stock of Merger
Sub consists in its entirety of 1,000  shares of common stock, $1.00 par  value,
of which 100 shares are issued and outstanding. All of the outstanding shares of
capital  stock of each  of the Star  Subsidiaries are owned  beneficially and of
record by Star or  a Star Subsidiary  free and clear of  all liens, charges  and
encumbrances  of any nature. All  of the outstanding shares  of capital stock of
Star, Merger Sub and each of the Star Subsidiaries have been validly issued  and
are fully paid and nonassessable.
 
    4.   To the best of our knowledge, except as disclosed in Section 3.3 of the
Star Disclosure Schedule or in Section 3.2 of the Merger Agreement, there is  no
outstanding  right, subscription,  warrant, call,  unsatisfied preemptive right,
option or other agreement or arrangement of any kind to purchase or otherwise to
receive from Star or any Star  Subsidiary any of the outstanding authorized  but
unissued,  unauthorized or  treasury shares  of the  capital stock  or any other
security of Star or any Star Subsidiary, and there is no outstanding security of
any kind convertible into or exchangeable for such capital stock. No options  or
rights  to  acquire  equity securities  granted  by Star  have  provisions which
accelerate the vesting or right to exercise such options or rights or  terminate
any repurchase rights of Star upon the consummation of the Merger.
 
    5.   Each of Star  and Merger Sub has full  corporate power and authority to
execute and  deliver the  Merger Agreement  and to  consummate the  transactions
contemplated  on  its part  thereby. The  execution and  delivery of  the Merger
Agreement  by  each  of  Star  and  Merger  Sub  and  the  consummation  of  the
transactions contemplated on its part thereby have been duly authorized by their
respective  Boards of Directors and duly  approved by Star's stockholders and no
other corporate proceedings on the part of  Star or Merger Sub are necessary  to
authorize  the execution and delivery of the Merger Agreement by Star and Merger
Sub or the consummation  of the transactions contemplated  on its part  thereby.
The  Merger Agreement has been  duly executed and delivered  by each of Star and
Merger Sub and constitutes  the legal, valid and  binding obligation of each  of
Star  and  Merger  Sub,  as  the  case  may  be,  enforceable  against  each  of
 
                                      A-34
<PAGE>
them in accordance with its terms, except to the extent that such enforceability
may be limited  by applicable  bankruptcy, insolvency,  reorganization or  other
laws  affecting the  enforcement of  creditors' rights  generally or  by general
equity principles.
 
    6.  The Registration Statement has become effective under the Securities Act
and, to the best of our knowledge, no order suspending the effectiveness of  the
Registration  Statement has been  issued and no proceeding  for that purpose has
been instituted or is pending.
 
                                      A-35
<PAGE>
                                                                       EXHIBIT C
                                                             TO MERGER AGREEMENT
 
                          OPINION OF LATHAM & WATKINS
 
    1.   Each  of Amserv  and  the Amserv  Subsidiaries  is a  corporation  duly
incorporated,  validly  existing and  in  good standing  under  the laws  of the
jurisdictions of  its  incorporation, with  all  requisite corporate  power  and
authority  to own, operate and lease its properties and to carry on its business
as it is now being conducted, and is qualified or licensed to do business and is
in good standing in each jurisdiction in which the failure to be so qualified or
licensed, individually or in the aggregate, would have a Material Adverse Effect
on Amserv. The Amserv Disclosure Schedule contains a complete and accurate  list
of  all of the Amserv Subsidiaries. Neither  Amserv nor any Amserv Subsidiary is
in violation  of any  provision of  its charter  or bylaws  which could  have  a
Material Adverse Effect on Amserv.
 
    2.   The authorized capital stock of  Amserv consists in its entirety of (i)
15,000,000 shares of common stock, $.01 par value, and (ii) 3,000,000 shares  of
Preferred  Stock, $.01 par  value. As of  February 9, 1996,  3,304,953 shares of
Amserv Common Stock were issued and outstanding, (ii) 195,106 shares of Class  B
Redeemable  Preferred Stock were issued and outstanding and were the only shares
of Amserv  Preferred Stock  issued  and outstanding,  (iii) options  to  acquire
252,366  shares of Amserv Common Stock  were outstanding under the Amserv Option
Plans, (iv) 1,177,027 shares of Amserv  Common Stock were reserved for  issuance
under  all of the Amserv  Option Plans and (v) 150,000  shares of Class C Junior
Participating Preferred  Stock  were  reserved for  issuance  under  the  Rights
Agreement  between Amserv and  First Interstate Bank of  California, dated as of
January 24, 1996. All of the outstanding shares of capital stock of each of  the
Amserv  Subsidiaries are owned beneficially and of record by Amserv or an Amserv
Subsidiary free and  clear of all  liens, charges and  encumbrances. All of  the
outstanding   shares  of  capital  stock  of  Amserv  and  each  of  the  Amserv
Subsidiaries have been validly issued and are fully paid and nonassessable.
 
    3.  To the best of our knowledge, except as disclosed in Section 4.3 of  the
Amserv  Disclosure Schedule or in Section 4.2  of the Merger Agreement, there is
no outstanding right, subscription, warrant, call, unsatisfied preemptive right,
option or other agreement or arrangement of any kind to purchase or otherwise to
receive from Amserv or any Amserv Subsidiary any of the outstanding,  authorized
but  unissued, unauthorized or treasury shares of  the common stock or any other
security of  Amserv  or any  Amserv  Subsidiary,  and there  is  no  outstanding
security of any kind convertible into or exchangeable for such capital stock. To
the  best of  our knowledge, except  as disclosed  in Section 4.3  of the Amserv
Disclosure Schedule, no options or  rights to acquire equity securities  granted
by Amserv have provisions which accelerate the vesting or right to exercise such
options or rights or terminate any rights of Amserv upon the consummation of the
Merger.
 
    4.  Amserv has full corporate power and authority to execute and deliver the
Merger  Agreement and  to consummate the  transactions contemplated  on its part
thereby. The execution and  delivery of the Merger  Agreement by Amserv and  the
consummation of the transactions contemplated on its part thereby have been duly
authorized by its Board of Directors and duly approved by Amserv's stockholders,
and  no  other corporate  proceedings on  the  part of  Amserv are  necessary to
authorize the execution and  delivery of the Merger  Agreement by Amserv or  the
consummation  of the transactions  contemplated on its  part thereby. The Merger
Agreement has been duly  executed and delivered by  Amserv, and constitutes  the
legal,  valid and  binding obligation of  Amserv, enforceable  against Amserv in
accordance with its terms, except to the extent that such enforceability may  be
limited  by  applicable  bankruptcy, insolvency,  reorganization  or  other laws
affecting the enforcement of  creditors' rights generally  or by general  equity
principles.
 
    5.   Except as disclosed  in Section 4.5 of  the Amserv Disclosure Schedule,
the execution, delivery and  performance of the Merger  Agreement by Amserv  and
the  consummation  by it  of the  transactions contemplated  thereby do  not (i)
violate or conflict with any  provision of any law  applicable to Amserv or  any
Amserv
 
                                      A-36
<PAGE>
Subsidiary or by which any of its property or assets are bound, (ii) require the
consent,  waiver, approval, license or authorization  of or any filing by Amserv
or any Amserv Subsidiary with any  public authority (other than as described  in
clause  (ii) of the first  sentence of Section 3.6  of the Merger Agreement) or,
(iii) violate, conflict with or result in a breach of or the acceleration of any
obligation under, or constitute a default (or an event which with notice or  the
lapse of time or both would become a default) under, or give to others any right
of,  or result in any, termination,  amendment, acceleration or cancellation of,
or loss of any benefit or creation of a right of first refusal or result in  the
creation  of a lien or  other encumbrance on any property  or asset of Amserv or
any Amserv Subsidiary pursuant to or under any provision of any charter or bylaw
or, to the best of our knowledge, any indenture, mortgage, lien, lease, license,
agreement, contract, instrument, order, judgment, ordinance, Amserv Permit, law,
regulation or decree to which Amserv or Amserv Subsidiary is subject or by which
Amserv or any Amserv Subsidiary  or any of their  property or assets are  bound,
except  where the failure to give such notice, make such filings, or obtain such
authorizations,  consents,  waivers,  licenses  or  approvals,  or  where   such
violations,    conflicts,   breaches,    defaults,   terminations,   amendments,
accelerations,  cancellations,   loss   of  rights,   liens   or   encumbrances,
individually  or in the aggregate,  would not have a  Material Adverse Effect on
Amserv or on Amserv's ability to consummate the transactions contemplated by the
Merger Agreement.
 
    6.  Upon filing of the Certificate of Merger with the Secretary of State  of
the State of Delaware, the Merger will be effective in accordance with the terms
of the Certificate of Merger and the DGCL.
 
    7.    To the  best  of our  knowledge,  the Assets  are  not subject  to any
mortgage, security  interest, pledge,  lien, claim,  encumbrance or  charge,  or
restraint of transfer whatsoever, and no currently effective financing statement
with  respect to any of  its Assets has been  filed under the Uniform Commercial
Code in any jurisdiction.
 
    8.  To the best of our knowledge, except as set forth in Section 4.7 of  the
Amserv  Disclosure Schedule or  in the Amserv  SEC Filings, there  are no suits,
arbitrations, mediations, actions, proceedings, unfair labor practice complaints
or grievances pending or threatened against Amserv or any Amserv Subsidiary.
 
                                      A-37
<PAGE>
                                                                      APPENDIX B
 
                          BATCHELDER & PARTNERS, INC.
                     4330 LA JOLLA VILLAGE DRIVE, SUITE 200
                          SAN DIEGO, CALIFORNIA 92122
 
DAVID H. BATCHELDER                                    TELEPHONE: (619) 456-6655
PRESIDENT                                             TELECOPIER: (619) 456-7969
 
                                                                February 9, 1996
 
Board of Directors
AMSERV HEALTHCARE, INC.
3252 Holiday Court, Suite 204
La Jolla, CA 92037
 
Gentlemen:
 
    You  have requested that  we render our  opinion as to  the fairness, from a
financial point  of  view,  to  the  shareholders  of  AMSERV  HEALTHCARE,  INC.
("AMSERV") of the "Merger" as defined and provided for in the Agreement and Plan
of Merger between AMSERV and Star Multi Care Services, Inc. ("STAR") dated as of
February  8, 1996  (the "Agreement"). Pursuant  to the  Merger, each outstanding
share of AMSERV common  stock shall be converted  into and become 0.409  validly
issued, fully paid and nonassessable shares of common stock of STAR.
 
    In  connection  with our  opinion, we  have reviewed  the Agreement  and all
schedules and exhibits  thereto. We  have also reviewed  relevant financial  and
other  information concerning  AMSERV and  STAR that  was publicly  available or
furnished to  us  by  AMSERV  or STAR,  including  information  provided  during
discussions  with their respective  managements. We reviewed  pro forma combined
financial information and financial  projections furnished to  us by AMSERV  and
STAR  and we reviewed the business prospects  of AMSERV and STAR as furnished to
us in our discussions with their respective managements. We have considered  the
relative  contribution of  each company  to the  combined revenues,  net income,
assets and net worth of the combined entity based upon the financial information
provided to  us  by AMSERV  and  STAR. In  addition,  we have  compared  certain
financial  and securities  data of  AMSERV and STAR  with that  of various other
companies whose securities are publicly  traded, reviewed the historical  prices
and  trading volumes of the common stock  of AMSERV and STAR, and conducted such
other financial  analyses as  we have  determined, based  upon our  judgment  as
investment bankers, to be appropriate for purposes of this opinion. In rendering
this  opinion, we have reviewed certain  third party proposals or indications of
interest for  an  alternative potential  business  combination as  presented  to
AMSERV and made available to us. However, we have not assumed any responsibility
for  and we have not made or received any independent evaluation or appraisal of
the assets or liabilities (contingent or otherwise) of AMSERV or STAR.
 
    In rendering this opinion, we have  relied on the accuracy and  completeness
of all financial and other information that was publicly available, furnished or
otherwise  communicated to us by AMSERV or STAR or otherwise reviewed by us, and
we have not assumed  any responsibility for an  independent verification of  any
such  information. With respect to financial projections reviewed by us, we have
assumed that the  projections were reasonably  prepared, based upon  assumptions
reflecting  the best currently  available estimates and  good faith judgments of
management as to the future performance  of AMSERV and STAR and that  management
of AMSERV and of STAR do not have any information or beliefs that would make the
projections  materially misleading. We have  assumed that the operating benefits
contemplated by the Merger as reflected in the financial projections provided to
us by AMSERV and STAR will be achieved.
 
                                      B-1
<PAGE>
    We have  also  assumed, with  your  consent, that  (i)  the Merger  will  be
accounted  for under  the pooling  of interests  method of  accounting; (ii) the
Merger will be a  tax-free reorganization; (iii)  the employment and  consulting
agreements  between AMSERV and  its chief executive  officer represent valid and
enforceable obligations  of  AMSERV  and  the  payments  to  him  following  his
anticipated termination, without cause by STAR following the consummation of the
Merger will be deductible for federal income tax purposes; and (iv) any material
liabilities  (contingent or otherwise, known or  unknown) of AMSERV and STAR are
as set  forth in  the  consolidated financial  statements  of AMSERV  and  STAR,
respectively.
 
    We  have  been  engaged  by AMSERV  to  render  investment  banking advisory
services to the Board of Directors of AMSERV in connection with its solicitation
and consideration of proposals  for the merger or  other sale or disposition  of
the stock or assets of AMSERV for which we have received customary consideration
for  such  services. AMSERV  will  pay us  a separate  fee  for our  services in
connection with the  Merger and in  rendering this opinion  which is  contingent
upon  the consummation  of the  Merger. AMSERV  has agreed  to indemnify  us for
certain liabilities arising out of our engagement.
 
    Our opinion  is based  upon an  analysis of  the factors  described in  this
letter  in light  of our  assessment of  general economic,  financial and market
conditions as they  exist and  as they can  be evaluated  by us as  of the  date
hereof. Our opinion is directed to the Board of Directors of AMSERV and does not
constitute  a  recommendation  to  any  shareholder of  AMSERV  as  to  how such
shareholder should  vote  on  the  Merger. Our  opinion  does  not  address  the
underlying  business decision  to sell  a controlling  interest in  AMSERV or to
enter into the Merger.
 
    Based upon and subject to the foregoing,  we are of the opinion on the  date
hereof  that the terms of the Merger are fair to the shareholders of AMSERV from
a financial point of view.
 
                                              Respectfully,
 
                                          /s/ BATCHELDER & PARTNERS, INC.
                                              BATCHELDER & PARTNERS, INC.
 
                                      B-2
<PAGE>
                PART II.  INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    (a)  Section 722 of the New York Business Corporation Law ("NYBCL") permits,
in general, a New York corporation  to indemnify any person made, or  threatened
to  be made, a party to an action or proceeding by reason of the fact that he or
she was a director or  officer of the corporation,  or served another entity  in
any  capacity at  the request of  the corporation, against  any judgment, fines,
amounts paid in  settlement and reasonable  expenses, including attorneys'  fees
actually  and necessarily incurred as a result  of such action or proceeding, or
any appeal therein, if such person acted in good faith, for a purpose he or  she
reasonably believed to be in, or, in the case of service for another entity, not
opposed  to, the best interests  of the corporation and,  in criminal actions or
proceedings, in addition  had no  reasonable cause to  believe that  his or  her
conduct was unlawful. Section 723 of the NYBCL permits the corporation to pay in
advance  of  a  final disposition  of  such  action or  proceeding  the expenses
incurred in defending such action or  proceeding upon receipt of an  undertaking
by  or on behalf of the director or officer  to repay such amount as, and to the
extent,  required  by  statute.   Section  721  of   the  NYBCL  provides   that
indemnification  and advancement  of expense  provisions contained  in the NYBCL
shall not be  deemed exclusive  of any  rights to  which a  director or  officer
seeking  indemnification  or advancement  of expenses  may be  entitled, whether
contained in the certificate of incorporation or the by-laws of the  corporation
or,  when  authorized by  such certificate  of incorporation  or by-laws,  (i) a
resolution  of  shareholders,  (ii)  a  resolution  of  directors  or  (iii)  an
agreement,  provided no indemnification may be made on behalf of any director or
officer if a  judgment or other  final adjudication adverse  to the director  or
officer establishes that his or her acts were committed in bad faith or were the
result  of active  or deliberate  dishonesty and were  material to  the cause of
action so adjudicated, or that he or  she personally gained in fact a  financial
profit or other advantage to which he or she was not legally entitled.
 
    (b)  STAR'S  Certificate of  Incorporation  contains no  provision regarding
indemnification of officers or directors.
 
    (c) Article  X of  STAR's  By-Laws provides,  in  general, that  STAR  shall
indemnify  any  officer or  director (including  officers and  directors serving
another corporation, partnership, joint venture, trust, employee benefit plan or
other enterprise in any  capacity at STAR's request)  made, or threatened to  be
made,   a  party   to  an  action   or  proceeding   (whether  civil,  criminal,
administrative or  investigative) by  reason of  the  fact that  he or  she  was
serving  in any  of those capacities  against judgments, fines,  amounts paid in
settlement and  reasonable expenses  (including  attorneys' fees)  actually  and
necessarily  incurred in connection with  the defense of or  as a result of such
action or proceeding or in  connection with any appeal thereof.  Indemnification
is  not available  under Article  X if  a judgment  or other  final adjudication
adverse to such director or  officer establishes that (i)  his or her acts  were
committed  in bad faith or  were the result of  active and deliberate dishonesty
and, in either case,  were material to  the cause of  action so adjudicated,  or
(ii)  he or she personally gained in  fact a financial profit or other advantage
to which he or she was not legally entitled.
 
    (d) Pursuant  to By-law  Article X,  STAR has  entered into  indemnification
agreements  with  certain  of  its  directors  and  officers  providing  for the
indemnification of such directors and officers in derivative actions, as well as
with respect  to third  party  actions. The  NYBCL mandates  indemnification  in
derivative actions if the officer or director has been successful, on the merits
or  otherwise, in the defense of  the action. The indemnification agreements, as
well as Section 722  of the NYBCL, do  not permit indemnification in  derivative
actions  for (a) proceedings which  are settled or otherwise  disposed of or (b)
claims to which a person has been adjudged to be liable, unless court  approved.
However,  in  reliance on  Section 721  of  the NYBCL,  which provides  that the
statutory indemnification provisions are not exclusive of other rights which may
be provided to an officer or director seeking indemnification, By-law Article  X
also  extends  the  right  of indemnification  to  settlements  and unsuccessful
defenses of derivative actions  without the necessity  of a court  determination
provided  the person seeking indemnification meets the standard described in the
preceding paragraph.  STAR is  not aware  of any  judicial determination  as  to
whether indemnification
 
                                      II-1
<PAGE>
provisions  such  as those  related to  derivative actions  in By-Law  Article X
(which, by their  terms, exceed the  scope of  NYBCL Section 722  but where  the
standard of conduct set forth in NYBCL Section 721 has been met) are enforceable
pursuant to such nonexclusivity provision.
 
    (e) By-law Article X, like the indemnification agreements, provides that the
expenses  incurred in defending any action to which a director or officer may be
entitled to  indemnification  shall be  advanced  by  STAR prior  to  the  final
disposition  of the action  as long as  the indemnitee undertakes  to repay such
advances if required  by law.  STAR has been  advised that  the NYBCL  currently
requires  that an officer  or director undertake  to repay such  advances to the
extent they exceed  the amount to  which the officer  or director ultimately  is
entitled. The period of time within which STAR is to advance expenses is fifteen
days   after  request;  the  time  period   within  which  STAR  is  to  provide
indemnification after request is thirty days.
 
    (f) By-law Article  X, which by  its terms  is not the  exclusive basis  for
granting  rights  to  indemnification or  advancement  of  expenses, establishes
procedures for processing  indemnification requests, confirms  the authority  of
STAR  to maintain indemnification  insurance and prohibits  the repeal of By-law
Article X retroactively. By-law Article X also provides that it applies, to  the
fullest  extent permitted by  law, to acts  or omissions occurring  prior to its
adoption. By-law Article X  further stipulates that  the rights granted  therein
are  contractual in nature, which is meant  to prevent any retroactive denial or
reduction of indemnification if By-law Article X is later amended.
 
    (g) Under By-law  Article X,  the Board of  Directors is  permitted, to  the
fullest  extent  permitted by  law,  to establish  an  appropriate scope  of and
procedure for the indemnification of, and advancement of expenses to,  employees
and  other  persons to  whom  STAR is  permitted  to provide  indemnification or
advancement of expenses.
 
ITEM 21.  EXHIBITS
 
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
<C>              <S>        <C>
          2.     (a)        Agreement and Plan of Merger Among Star Multi Care Services, Inc., AHI Acquisition Corp.
                             and AMSERV HEALTHCARE INC., dated as of February 9, 1996, as amended on July 18, 1996.
                             (Filed as Appendix A to the Joint Proxy Statement/Prospectus).
          3.     (a)  *     STAR's Certificate of Incorporation filed April 25, 1961.
                 (b)  *     STAR's Certificate of Amendment to Certificate of Incorporation filed February 22, 1989.
                 (c)  *     STAR's Certificate of Amendment to Certificate of Incorporation filed December 4, 1990.
                 (d)        STAR's Certificate of Amendment to Certificate of Incorporation filed February 3, 1994.
                             (Incorporated by reference to Exhibit 3(d) to STAR's Annual Report on Form 10-KSB for the
                             fiscal year ended May 31, 1994.)
                 (e)        STAR's Certificate of Change filed March 2, 1995. (Incorporated by reference to Exhibit
                             3(e) to STAR's Annual Report on Form 10-KSB for the fiscal year ended May 31, 1995.)
                 (f)        STAR's By-Laws, as amended on November 18, 1992 and September 13, 1993. (Incorporated by
                             reference to Exhibit 3(e) to STAR's Annual Report on Form 10-KSB for the fiscal year ended
                             May 31, 1994.)
          4.     (a) **     Voting Agreement, dated as of February 9, 1996, among AMSERV and Stephen Sternbach.
          5.     (a) **     Opinion of Parker Chapin Flattau & Klimpl, LLP.
          8.     (a) **     Opinion of Latham & Watkins.
</TABLE>
 
                                      II-2
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
         10.     (a)  *     Form of Indemnification Agreement between STAR and Stephen Sternbach.
<C>              <S>        <C>
                 (b)        Employment Agreement, dated as of December 3, 1995 between STAR and Stephen Sternbach.
                             (Incorporated by reference to Exhibit 10.(x) to STAR's Quarterly Report on Form 10-QSB for
                             the quarterly period ended February 29, 1996.)
                 (c)  *     STAR's 1991 Incentive Stock Option Plan
                 (d)        STAR's 1992 Incentive Stock Option Plan, as amended and restated September 13, 1993.
                             (Incorporated by reference to Exhibit 10(h) to STAR's Annual Report on Form 10-KSB for the
                             fiscal year ended May 31, 1994.)
                 (f)        Amendment No. 1 to STAR's 1992 Stock Option Plan. (Incorporated by reference to Exhibit
                             10.(z) to STAR's Quarterly Report on Form 10-QSB for the quarterly period ended February
                             26, 1996.)
                 (g)        STAR's Employee Stock Purchase Plan, as amended December 15, 1995. (Incorporated by
                             reference to Exhibit 10.(y) to STAR's Quarterly Report on Form 10-QSB for the quarterly
                             period ended February 26, 1996.)
                 (h)        Form of Incentive Stock Option Contract. (Incorporated by reference to Exhibit 10(j) to
                             STAR's Annual Report on Form 10-K for the fiscal year ended May 31, 1993.)
                 (i)   *    Agreement relating to purchase of STAR among Stephen Sternbach, Renee Starr and Leonard
                             Taubenblatt dated December 31, 1986.
                 (j)   *    New York State Department of Consumer Affairs Employment Agency License.
                 (k)  *     New York State Health Department Home Care License.
                 (l)   *    New Jersey Employment Agency License.
                 (m)        Form of Indemnification Agreement between STAR and directors and officers. (Incorporated by
                             reference to Exhibit 10(k) to STAR's Annual Report on Form 10-K for the fiscal year ended
                             May 31, 1992.)
                 (n)        Asset Purchase Agreement dated as of November 1, 1991 by and among Unity Care Services,
                             Inc., Unity Healthcare Holding Company, Inc. and STAR. (Incorporated by reference to
                             Exhibit 10(l) to STAR's Annual Report on Form 10-K for the fiscal year ended May 31,
                             1992.)
                 (o)        Asset Purchase Agreement dated as of January 30, 1992 by and among Unity Healthcare Holding
                             Company, Inc., Unity Care Services, Inc. and STAR. (Incorporated by reference to Exhibit
                             10.1 to STAR's Current Report on Form 8-K dated May 26, 1992.)
                 (p)        Asset Purchase Agreement dated as of January 30, 1992 by and between Unity Home Care of
                             Florida, Inc. and STAR. (Incorporated by reference to Exhibit 10.2 to STAR's Current
                             Report on Form 8-K dated May 26, 1992.)
                 (q)        Employment Agreement, dated February 15, 1990, between Alan Spector and STAR, as assignee
                             of Unity Home Care of Florida, Inc. (Incorporated by reference to Exhibit 10(o) to STAR's
                             Annual Report on Form 10-K for the fiscal year ended May 31, 1992.)
</TABLE>
 
                                      II-3
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
                 (r)        Asset Purchase Agreement dated as of November 8, 1993 by and between DSI Health Care
                             Services, Inc. and Star Multi Care Services of Long Island, Inc., a wholly owned
                             subsidiary of STAR. (Incorporated by reference to Exhibit 10.1 to STAR's Current Report on
                             Form 8-K dated November 22, 1993.)
<C>              <S>        <C>
                 (s)        Asset Purchase Agreement dated as of January 6, 1995, as amended, by and between Long
                             Island Nursing Registry, Inc. and STAR. (Incorporated by reference to Exhibit 21 to STAR's
                             Current Report on Form 8-K dated May 19, 1995.)
                 (t)        Employment Agreement dated May 19, 1995 by and between STAR and Gregory Turchan.
                             (Incorporated by reference to Exhibit 99.1 to STAR's Current Report on Form 8-K dated May
                             19, 1995.)
                 (u)        Loan Agreement dated November 1, 1995 by and between STAR and Chase Manhattan Bank, N.A.
                             (Incorporated by reference to Exhibit 10.(w) to STAR's Quarterly Report on Form 10-QSB for
                             the quarterly period ended November 30, 1995.)
         16.     (a)        Letter dated April 25, 1995, as amended, from Deloitte & Touche LLP to the Securities and
                             Exchange Commission. (Incorporated by reference to AMSERV's Current Report on Form 8-K/A
                             dated March 21, 1995.)
         23.     (a) **     Consent of Holtz Rubenstein & Co., LLP
                 (b) **     Consent of Ernst & Young LLP
                 (c) **     Consent of Deloitte & Touche LLP
                 (d) **     Consent of Paul Josephson C.P.A., P.C.
                 (e)        Consent of Parker Chapin Flattau & Klimpl, LLP (included in their opinion filed as Exhibit
                             5(a) to this Registration Statement).
                 (f)        Consent of Latham & Watkins (included in their opinion filed as Exhibit 8(a) to this
                             Registration Statement).
         99.     (a) **     Form of STAR Proxy Card.
                 (b) **     Form of AMSERV Proxy Card.
</TABLE>
 
- ------------------------
 * Incorporated by reference to STAR's Registration Statement on Form S-18 dated
   May 14, 1991. (Registration No. 33-39697-NY).
 
** Filed herewith.
 
ITEM 22.  UNDERTAKINGS.
 
    (a)(1)  The undersigned registrant hereby undertakes:
 
        (A) To file, during any period in which offers or sales are being  made,
    a post-effective amendment to this registration statement:
 
           (i)  To include  any prospectus required  by Section  10(a)(3) of the
       Securities Act of 1933;
 
           (ii) To  reflect  in  the  prospectus  any  facts  or  events  which,
       individually   or  together,  represent  a   fundamental  change  in  the
       information set forth in the registration statement.
 
          (iii) To include any material information with respect to the plan  of
       distribution.
 
                                      II-4
<PAGE>
        (B)  For  determining liability  under  the Securities  Act,  treat each
    post-effective amendment as a new  registration statement of the  securities
    offered,  and the offering of the securities  at that time to be the initial
    bona fide offering.
 
        (C) To remove from registration  by means of a post-effective  amendment
    any   of  the  securities  being  registered  which  remain  unsold  at  the
    termination of the offering.
 
      (2)    Insofar  as  indemnification  for  liabilities  arising  under  the
Securities  Act of 1933 may be  permitted to directors, officers and controlling
persons of the registrant  pursuant to the  foregoing provisions, or  otherwise,
the  registrant  has been  advised that  in  the opinion  of the  Securities and
Exchange Commission such indemnification is  against public policy as  expressed
in  the Act  and is,  therefore, unenforceable.  In the  event that  a claim for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
registrant  of  expenses  incurred  or  paid  for  by  a  director,  officer  or
controlling person of the  registrant in the successful  defense of any  action,
suit  or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the registrant will,  unless
in  the  opinion of  its  counsel the  matter  had been  settled  by controlling
precedent, submit to a court of appropriate jurisdiction the question of whether
such indemnification by it is against public policy as expressed in the Act  and
will be governed by the final adjudication of such issue.
 
    (b)  The undersigned registrant hereby undertakes to respond to requests for
information that is incorporated  by reference into  the prospectus pursuant  to
Item  4, 10(b), 11,  or 13 of this  form, within one business  day of receipt of
such request, and  to send  the incorporated documents  by first  class mail  or
other  equally prompt  means. This  includes information  contained in documents
filed subsequent to the effective date of the registration statement through the
date of responding to the request.
 
    (c) The undersigned  registrant hereby undertakes  to supply by  means of  a
post-effective  amendment all  information concerning  the transaction,  and the
company being  acquired  involved therein,  that  was  not the  subject  of  and
included in the registration statement when it became effective.
 
    (d)  The  undersigned registrant  hereby  undertakes that,  for  purposes of
determining any liability under the Securities  Act of 1933, each filing of  the
registrant's  annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act  of 1934  that is  incorporated by  reference in  the  registration
statement  shall be deemed  to be a  new registration statement  relating to the
securities offered therein,  and the offering  of such securities  at that  time
shall be deemed to be the initial bona fide offering thereof.
 
                                      II-5
<PAGE>
                                   SIGNATURES
 
    Pursuant  to the requirements of the  Securities Act of 1933, the registrant
has duly caused this Registration  Statement to be signed  on its behalf by  the
undersigned,  thereunto duly authorized, in the City of Hicksville, State of New
York on the 18th day of July 1996.
 
                                          STAR MULTI CARE SERVICES, INC.
 
                                          By:        /s/ STEPHEN STERNBACH
 
                                             -----------------------------------
                                                      Stephen Sternbach
                                                PRESIDENT AND CHIEF EXECUTIVE
                                                           OFFICER
 
    Pursuant to the requirements of the Securities Act of 1933, as amended, this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities  and  on  the dates  indicated,  each  of whom  also  constitutes and
appoints Stephen Sternbach and William Fellerman, acting singly or together, his
true and lawful attorney-in-fact and agent, with full power of substitution  and
resubstitution for him in any and all capacities, to sign any and all amendments
and  post-effective amendments to  this Registration Statement,  and to file the
same, with exhibits thereto and any other documents in connection therewith with
the Securities and Exchange Commission, granting unto each attorney-in-fact  and
agent  full power and authority  to do and perform each  and every act and thing
requisite and necessary in  connection with such  matters, and hereby  ratifying
and  confirming all  that each attorney-in-fact  and agent or  his substitute or
substitutes may lawfully do or cause to be done by virtue hereof.
 
<TABLE>
<C>                                                     <S>                                       <C>
                      SIGNATURE                                          TITLE                         DATE
- ------------------------------------------------------  ----------------------------------------  ---------------
 
                /s/ STEPHEN STERNBACH                   Chairman of the Board of Directors,
     -------------------------------------------         President and Chief Executive Officer     July 18, 1996
                  Stephen Sternbach                      (Principal Executive Officer)
 
                /s/ WILLIAM FELLERMAN                   Chief Financial Officer, Secretary,
     -------------------------------------------         Treasurer and Director (Principal         July 18, 1996
                  William Fellerman                      Financial and Accounting Officer)
 
                  /s/ JOHN P. INNES
     -------------------------------------------        Director                                   July 18, 1996
                   John P. Innes II
 
                  /s/ MATTHEW SOLOF
     -------------------------------------------        Director                                   July 18, 1996
                    Matthew Solof
 
                  /s/ CHARLES BERDAN
     -------------------------------------------        Director                                   July 18, 1996
                    Charles Berdan
</TABLE>
 
                                      II-6
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
<C>              <S>        <C>
          2.     (a)        Agreement and Plan of Merger Among STAR, Merger Sub and AMSERV dated as of February 9,
                             1996, as amended on July 18, 1996. (Filed as Appendix A to the Joint Proxy
                             Statement/Prospectus).
          3.     (a)  *     STAR's Certificate of Incorporation filed April 25, 1961.
                 (b)  *     STAR's Certificate of Amendment to Certificate of Incorporation filed February 22, 1989.
                 (c)  *     STAR's Certificate of Amendment to Certificate of Incorporation filed December 4, 1990.
                 (d)        STAR's Certificate of Amendment to Certificate of Incorporation filed February 3, 1994.
                             (Incorporated by reference to Exhibit 3 (d) to STAR's Annual Report on Form 10-KSB for the
                             fiscal year ended May 31, 1994.)
                 (e)        STAR's Certificate of Change filed March 2, 1995. (Incorporated by reference to Exhibit
                             3(e) to STAR's Annual Report on Form 10-KSB for the fiscal year ended May 31, 1995.)
                 (f)        STAR's By-Laws, as amended on November 18, 1992 and September 13, 1993. (Incorporated by
                             reference to Exhibit 3(e) to STAR's Annual Report on Form 10-KSB for the fiscal year ended
                             May 31, 1994.)
          4.     (a) **     Voting Agreement, dated as of February 9, 1996, among AMSERV and Stephen Sternbach.
          5.     (a) **     Opinion of Parker Chapin Flattau & Klimpl, LLP.
          8.     (a) **     Opinion of Latham & Watkins.
         10.     (a)  *     Form of Indemnification Agreement between STAR and Stephen Sternbach.
                 (b)        Employment Agreement, dated as of December 3, 1995 between STAR and Stephen Sternbach.
                             (Incorporated by reference to Exhibit 10.(x) to STAR's Quarterly Report on Form 10-QSB for
                             the quarterly period ended February 29, 1996.)
                 (c)  *     STAR's 1991 Incentive Stock Option Plan
                 (d)        STAR's 1992 Incentive Stock Option Plan, as amended and restated September 13, 1993.
                             (Incorporated by reference to Exhibit 10(h) to STAR's Annual Report on Form 10-KSB for the
                             fiscal year ended May 31, 1994.)
                 (f)        Amendment No. 1 to STAR's 1992 Stock Option Plan. (Incorporated by reference to Exhibit
                             10.(z) to STAR's Quarterly Report on Form 10-QSB for the quarterly period ended February
                             26, 1996.)
                 (g)        STAR's Employee Stock Purchase Plan, as amended December 15, 1995. (Incorporated by
                             reference to Exhibit 10.(y) to STAR's Quarterly Report on Form 10-QSB for the quarterly
                             period ended February 26, 1996.)
                 (h)        Form of Incentive Stock Option Contract. (Incorporated by reference to Exhibit 10(j) to
                             STAR's Annual Report on Form 10-K for the fiscal year ended May 31, 1993.)
                 (i)   *    Agreement relating to purchase of STAR among Stephen Sternbach, Renee Starr and Leonard
                             Taubenblatt dated December 31, 1986.
                 (j)   *    New York State Department of Consumer Affairs Employment Agency License.
                 (k)  *     New York State Health Department Home Care License.
                 (l)   *    New Jersey Employment Agency License.
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
                 (m)        Form of Indemnification Agreement between STAR and directors and officers. (Incorporated by
                             reference to Exhibit 10(k) to STAR's Annual Report on Form 10-K for the fiscal year ended
                             May 31, 1992.)
<C>              <S>        <C>
                 (n)        Asset Purchase Agreement dated as of November 1, 1991 by and among Unity Care Services,
                             Inc., Unity Healthcare Holding Company, Inc. and STAR. (Incorporated by reference to
                             Exhibit 10 (l) to STAR's Annual Report on Form 10-K for the fiscal year ended May 31,
                             1992.)
                 (o)        Asset Purchase Agreement dated as of January 30, 1992 by and among Unity Healthcare Holding
                             Company, Inc., Unity Care Services, Inc. and STAR. (Incorporated by reference to Exhibit
                             10.1 to STAR's Current Report on Form 8-K dated May 26, 1992.)
                 (p)        Asset Purchase Agreement dated as of January 30, 1992 by and between Unity Home Care of
                             Florida, Inc. and STAR. (Incorporated by reference to Exhibit 10.2 to STAR's Current
                             Report on Form 8-K dated May 26, 1992.)
                 (q)        Employment Agreement, dated February 15, 1990, between Alan Spector and STAR, as assignee
                             of Unity Home Care of Florida, Inc. (Incorporated by reference to Exhibit 10(o) to STAR's
                             Annual Report on Form 10-K for the fiscal year ended May 31, 1992.)
                 (r)        Asset Purchase Agreement dated as of November 8, 1993 by and between DSI Health Care
                             Services, Inc. and Star Multi Care Services of Long Island, Inc., a wholly owned
                             subsidiary of STAR. (Incorporated by reference to Exhibit 10.1 to STAR's Current Report on
                             Form 8-K dated November 22, 1993.)
                 (s)        Asset Purchase Agreement dated as of January 6, 1995, as amended, by and between Long
                             Island Nursing Registry, Inc. and STAR. (Incorporated by reference to Exhibit 21 to STAR's
                             Current Report on Form 8-K dated May 19, 1995.)
                 (t)        Employment Agreement dated May 19, 1995 by and between STAR and Gregory Turchan.
                             (Incorporated by reference to Exhibit 99.1 to STAR's Current Report on Form 8-K dated May
                             19, 1995.)
                 (u)        Loan Agreement dated November 1, 1995 by and between STAR and Chase Manhattan Bank, N.A.
                             (Incorporated by reference to Exhibit 10.(w) to STAR's Quarterly Report on Form 10-QSB for
                             the quarterly period ended November 30, 1995.)
         16.     (a)        Letter dated April 25, 1995, as amended, from Deloitte & Touche LLP to the Securities and
                             Exchange Commission. (Incorporated by reference to AMSERV's Current Report on Form 8-K/A
                             dated March 21, 1995.)
         23.     (a) **     Consent of Holtz Rubenstein & Co., LLP
                 (b) **     Consent of Ernst & Young LLP
                 (c) **     Consent of Deloitte & Touche LLP
                 (d) **     Consent of Paul Josephson C.P.A., P.C.
                 (e)        Consent of Parker Chapin Flattau & Klimpl, LLP (included in their opinion filed as Exhibit
                             5(a) to this Registration Statement).
                 (f)        Consent of Latham & Watkins (included in their opinion filed as Exhibit 8(a) to this
                             Registration Statement).
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT NO.     EXHIBIT
- ---------------  ---------
         99.     (a) **     Form of STAR Proxy Card.
<C>              <S>        <C>
                 (b) **     Form of AMSERV Proxy Card.
</TABLE>
 
- ------------------------
 * Incorporated by reference to STAR's Registration Statement on Form S-18 dated
   May 14, 1991. (Registration No. 33-39697-NY).
 
** Filed herewith.

<PAGE>
                                                                    EXHIBIT 4(A)
 
                                VOTING AGREEMENT
 
    VOTING  AGREEMENT (this  "AGREEMENT"), dated as  of February  9, 1996, among
AMSERV HEALTHCARE INC., a Delaware corporation ("AMSERV"), and STEPHEN STERNBACH
(the "STOCKHOLDER").
 
                                    RECITALS
 
    Concurrently herewith, Amserv, Star  Multi Care Services,  Inc., a New  York
corporation  ("STAR"), and  AHI Acquisition  Corp., a  Delaware corporation (the
"MERGER SUB"), are entering into an Agreement and Plan of Merger dated the  date
hereof  (the "MERGER AGREEMENT";  capitalized terms used  but not defined herein
shall have the meanings  set forth in the  Merger Agreement), pursuant to  which
the Merger Sub will merge with and into Amserv (the "MERGER"), and each share of
common  stock, par value $.01  per share, of Amserv  (the "AMSERV COMMON STOCK")
issued and outstanding immediately  prior to the Effective  Time (as defined  in
the  Merger Agreement) will be converted into  the right to receive .4090 shares
of common stock, par value $.001 per share, of Star (the "STAR COMMON STOCK").
 
    As of the date  hereof, the Stockholder  directly beneficially owns  847,155
shares of Star Common Stock (the "SHARES").
 
    As  a condition to its willingness to enter into the Merger Agreement and to
consummate the transactions contemplated thereby,  Amserv has required that  the
Stockholder  agree (i) to execute and deliver this Agreement and (ii) to grant a
proxy to  vote all  of the  Shares owned  by the  Stockholder on  the terms  and
conditions provided for herein.
 
                                   AGREEMENT
 
    To  implement the  foregoing and in  consideration of  the mutual agreements
contained herein, the parties agree as follows:
 
    1.  AGREEMENT TO VOTE; PROXY.  (a) The Stockholder, in his capacity as such,
hereby agrees that, during the time this Agreement is in effect, at any  meeting
of  the stockholders of Star, however called,  or in connection with any written
consent of the stockholders of Star, the Stockholder shall vote (or cause to  be
voted)  the Shares in favor of the Merger, the execution and delivery by Star of
the Merger Agreement and the approval of the terms thereof and each of the other
actions contemplated by the Merger Agreement and this Agreement. The Stockholder
shall not enter into  any agreement or understanding  with any person or  entity
prior  to  the  termination  hereof  to  vote  or  give  instructions  after the
termination hereof in any manner inconsistent with the preceding sentence.
 
    (b)  PROXY.  THE STOCKHOLDER HEREBY GRANTS TO, AND APPOINTS, AMSERV AND  THE
SECRETARY  OF  AMSERV  AND  THE  CHIEF FINANCIAL  OFFICER  OF  AMSERV,  IN THEIR
RESPECTIVE CAPACITIES  AS  OFFICERS OF  AMSERV,  AND ANY  INDIVIDUAL  WHO  SHALL
HEREAFTER  SUCCEED  TO ANY  SUCH OFFICE  OF  AMSERV, AND  ANY OTHER  DESIGNEE OF
AMSERV, AND EACH OF THEM  INDIVIDUALLY, THE STOCKHOLDER'S IRREVOCABLE PROXY  AND
ATTORNEY-IN-FACT  (WITH  FULL  POWER  OF SUBSTITUTION)  TO  VOTE  THE  SHARES AS
INDICATED IN SECTION 1(a). THE STOCKHOLDER INTENDS THIS PROXY TO BE  IRREVOCABLE
AND COUPLED WITH AN INTEREST, AFFIRMS THAT THIS PROXY IS GIVEN AS A CONDITION OF
THIS    VOTING   AGREEMENT    AND   AS    SUCH   IS    SO   COUPLED    WITH   AN
 
                                       1
<PAGE>
INTEREST AND WILL TAKE SUCH FURTHER ACTION OR EXECUTE SUCH OTHER INSTRUMENTS  AS
MAY  BE NECESSARY TO EFFECTUATE THE INTENT  OF THIS PROXY AND HEREBY REVOKES ANY
PROXY PREVIOUSLY GRANTED BY HIM WITH RESPECT TO THE SHARES.
 
    2.   EXPIRATION.   This Agreement  and  Amserv's right  to vote  the  Shares
covered  hereby as set forth  herein shall terminate on  the Expiration Date. As
used herein, the  term "EXPIRATION DATE"  means the  first to occur  of (a)  the
Effective  Time and (b)  termination of the Merger  Agreement in accordance with
its terms.
 
    3.  FURTHER ASSURANCES.  From time to time, at the other party's request and
without further consideration, each party hereto shall execute and deliver  such
additional  documents and take  all such further  action as may  be necessary or
desirable to  consummate and  make  effective, in  the most  expeditious  manner
practicable, the transactions contemplated by this Agreement.
 
    4.   MISCELLANEOUS.   (a) ENTIRE  AGREEMENT; ASSIGNMENT.  This Agreement (i)
constitutes the entire agreement among the  parties with respect to the  subject
matter hereof and supersedes all other prior agreements and understandings, both
written  and oral, between the parties with respect to the subject matter hereof
and (ii) shall not be assigned by operation of law or otherwise.
 
        (b)  AMENDMENTS.  This Agreement  may not be modified, amended,  altered
    or  supplemented,  except  upon  the execution  and  delivery  of  a written
    agreement executed by the parties hereto.
 
        (c)   NOTICES.    All  notices,  requests,  claims,  demands  and  other
    communications  hereunder shall be in writing  and shall be given (and shall
    be deemed to  have been  duly received  if so  be given)  by hand  delivery,
    telegram,  telex  or telecopy,  or by  mail  (registered or  certified mail,
    postage prepaid, return receipt requested)  or by any courier service,  such
    as   Federal  Express,  providing  proof  of  delivery.  All  communications
    hereunder shall  be delivered  to the  respective parties  at the  following
    addresses:
 
<TABLE>
<S>                  <C>
If to the            Stephen Sternbach
Stockholder:         c/o Star Multi Care Services,
                     Inc.
                     326 Walt Whitman Road
                     Huntington Station, New York
                     11746
 
If to Amserv:        Amserv Healthcare Inc.
                     3252 Holiday Court, #204
                     La Jolla, California 92037
                     Attention: Eugene Mora
 
copy to:             Latham & Watkins
                     701 "B" Street, Suite 2100
                     San Diego, California 92101
                     Attention: Scott N. Wolfe, Esq.
</TABLE>
 
or  to  such other  address  as the  person  to whom  notice  is given  may have
previously furnished to the others in writing in the manner set forth above.
 
    (d)  GOVERNING LAW.   This Agreement shall be  governed by and construed  in
accordance  with the laws of the State  of Delaware, regardless of the laws that
might otherwise govern under applicable principles of conflicts of laws thereof.
 
    (e)   SPECIFIC PERFORMANCE.    Each of  the  parties hereto  recognizes  and
acknowledges  that a breach  by it of  any covenants or  agreements contained in
this Agreement will cause the other party to sustain damages for which it  would
not  have an adequate remedy at law for money damages, and therefore each of the
parties hereto agrees that in the event  of any such breach the aggrieved  party
shall  be entitled to the  remedy of specific performance  of such covenants and
agreements and injunctive and  other equitable relief in  addition to any  other
remedy to which it may be entitled, at law or in equity.
 
                                       2
<PAGE>
    (f)  COUNTERPARTS.  This Agreement may be executed in two counterparts, each
of  which shall be deemed to be an  original, but both of which shall constitute
one and the same Agreement.
 
    (g)   DESCRIPTIVE  HEADINGS.    The descriptive  headings  used  herein  are
inserted for convenience of reference only and are not intended to be part of or
to affect the meaning or interpretation of this Agreement.
 
    (h)   SEVERABILITY.   Whenever  possible, each  provision or  portion of any
provision of  this  Agreement  will be  interpreted  in  such manner  as  to  be
effective  and valid under applicable law but if any provision or portion of any
provision of this Agreement is held  to be invalid, illegal or unenforceable  in
any  respect  under  any  applicable  law  or  rule  in  any  jurisdiction, such
invalidity, illegality or unenforceability will  not affect any other  provision
or  portion of any  provision in such  jurisdiction, and this  Agreement will be
reformed, construed  and  enforced in  such  jurisdiction as  if  such  invalid,
illegal  or unenforceable provision  or portion of any  provision had never been
contained herein.
 
    IN WITNESS WHEREOF, Amserv and the Stockholder have caused this Agreement to
be duly executed as of the day and year first above written.
 
                                          AMSERV HEALTHCARE INC.
 
                                          By:           /s/ EUGENE MORA
 
                                             -----------------------------------
                                          Name: Eugene Mora
                                             Title: President
 
                                          STEPHEN STERNBACH
 
                                                   /s/ STEPHEN STERNBACH
 
                                          --------------------------------------
 
                                       3

<PAGE>
                                                                    EXHIBIT 5(A)
 
                                  [Letterhead]
 
July 18, 1996
 
Star Multi Care Services, Inc.
99 Railroad Station Plaza
Hicksville, New York 11801
 
Gentlemen:
 
    This  opinion is rendered to you in connection with the filing by Star Multi
Care Services,  Inc.  ("Star"),  a  New  York  corporation,  of  a  Registration
Statement  on Form  S-4 (the "Registration  Statement") with  the Securities and
Exchange Commission relating  to the  registration under the  Securities Act  of
1933,  as amended, of an  aggregate of up to  1,445,496 shares (the "Shares") of
Star's common stock, par value $.001 per share, in connection with the  proposed
merger  (the  "Merger")  of AHI  Acquisition  Corp. ("Merger  Sub"),  a Delaware
corporation and wholly-owned  subsidiary of  Star, into  Amserv Healthcare  Inc.
("Amserv"), a Delaware corporation, pursuant to the Agreement and Plan of Merger
among  Star, Merger Sub and Amserv, dated as  of February 9, 1996, as amended on
July 18, 1996 (the "Merger Agreement"), and the transactions related thereto.
 
    In rendering this opinion we have  examined, among other things, the  Merger
Agreement,  the Certificate of Incorporation and  By-laws of Star and such other
corporate documents and records as we  have deemed necessary or appropriate.  We
have  also  made  such  examination  of  law  as  we  have  deemed  necessary or
appropriate. As to any facts  material to such opinion,  we have, to the  extent
that  relevant facts  were not established  by us, relied  upon certificates and
statements of public officials and  officers and other representatives of  Star.
In  all such examinations we have assumed the genuineness of all signatures, the
authenticity of all documents submitted to us as originals and the accuracy  and
conformity with original documents of documents submitted to us as copies.
 
    Based  upon and subject to the foregoing, it is our opinion that the Shares,
when issued  in accordance  with the  terms  of the  Merger Agreement,  will  be
validly issued, fully paid and non-assessable.
 
    We  hereby  consent to  the  filing of  this opinion  as  an Exhibit  to the
Registration Statement  and to  the use  of our  name under  the caption  "Legal
Matters"   in  the  Proxy  Statement/Prospectus   constituting  a  part  of  the
Registration Statement.
 
                                          Very truly yours,
 
                                           /s/ PARKER CHAPIN FLATTAU & KLIMPL,
                                                           LLP

<PAGE>
                                                                    EXHIBIT 8(A)
 
                         [Latham & Watkins' Letterhead]
 
                                                                   July 18, 1996
 
Board of Directors
Amserv Healthcare Inc.
3252 Holiday Court
Suite No. 204
La Jolla, California 92037
 
            Re: Registration Statement on Form S-4
 
Ladies and Gentlemen:
 
    The  facts, as  we understand  them, are  set forth  in the above-referenced
Registration Statement on  Form S-4 and  exhibits thereto to  be filed with  the
Securities  and Exchange Commission (the "Registration Statement"). In addition,
we  will   receive  certain   representations   from  Amserv   Healthcare   Inc.
("AMSERV")  and Star Multicare Services, Inc. ("STAR") at the Effective Time (as
defined in the Registration Statement).
 
    Based on such facts  and representations, the  discussion under the  caption
"Certain  Federal  Income Tax  Consequences" on  pages  44 and  45 of  the Proxy
Statement included in the  Registration Statement sets  forth Latham &  Watkins'
opinion  as  to the  material federal  income  tax consequences  expected, under
currently applicable law, to result to holders of AMSERV Common Stock (who  hold
their  shares as  capital assets)  from the merger  of AHI  Acquisition Corp., a
Delaware corporation,  and a  wholly-owned  subsidiary of  STAR, with  and  into
AMSERV with AMSERV becoming a wholly-owned subsidiary of STAR.
 
    This  opinion and the Proxy Statement  discussion do not address all aspects
of  federal  income  taxation  that   may  be  relevant  to  particular   AMSERV
shareholders  in light of their personal investment circumstances, or to certain
types of shareholders subject to special treatment under the federal income  tax
laws,   including,   without   limitation,   insurance   companies,   tax-exempt
organizations, financial institutions  or broker-dealers,  foreign persons,  and
shareholders  who  acquired  AMSERV Common  Stock  pursuant to  the  exercise of
employee  stock  options  or  otherwise  as  compensation.  In  addition,   this
discussion  does not  address the conversion  of AMSERV Options  into options to
purchase shares of STAR Common Stock pursuant to the Merger.
 
    The discussion under the caption  "Certain Federal Income Tax  Consequences"
is based on current provisions of the Internal Revenue Code of 1986, as amended,
applicable  Treasury Regulations, judicial  authority and administrative rulings
and practice,  all  of which  are  subject  to change  either  prospectively  or
retroactively. Also, any variation or difference in the facts or representations
as referred to herein might affect the conclusion stated herein.
 
    We  consent to  the use of  this opinion  as an exhibit  to the Registration
Statement and to the  use of our  firm name under  the caption "Certain  Federal
Income  Tax Consequences"  in the Proxy  Statement included  in the Registration
Statement.
 
                                          Very truly yours,
 
                                          /s/ LATHAM & WATKINS

<PAGE>
                                                                   EXHIBIT 23(A)
 
                        CONSENT OF INDEPENDENT AUDITORS
 
    We consent to the use in this Joint Proxy Statement/Prospectus of Star Multi
Care  Services, Inc. of our report dated July 19, 1996 (except for Note 4, as to
which the date is August 16, 1995) appearing in the Prospectus which is part  of
this Registration Statement.
 
    We  also  consent  to  the  reference to  us  under  the  headings "Selected
Financial Data" and "Experts" in such Prospectus.
 
                                          ____/s/_HOLTZ RUBENSTEIN & CO., LLP___
                                               Holtz Rubenstein & Co., LLP
 
Melville, New York
July 18, 1996

<PAGE>
                                                                   EXHIBIT 23(B)
 
               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
    We  consent to the reference to our  firm under the caption "Experts" and to
the use of our report  dated August 11, 1995,  with respect to the  consolidated
financial statements of AMSERV HEALTHCARE, INC., included in the Proxy Statement
of  Star  Multi Care  Services, Inc.  that is  made a  part of  the Registration
Statement (Form S-4) and  Prospectus of Star Multi  Care Services, Inc. for  the
registration of 1,445,496 shares of its common stock.
 
                                                   /s/ ERNST & YOUNG LLP
                                         --------------------------------------
                                                    ERNST & YOUNG LLP
 
SAN DIEGO, CALIFORNIA
JULY 18, 1996

<PAGE>
                                                                   EXHIBIT 23(C)
 
                         INDEPENDENT AUDITORS' CONSENT
 
    We  consent to  the use  in this Registration  Statement of  Star Multi Care
Services, Inc. on Form S-4 of our  report dated October 7, 1994 relating to  the
financial  statements of AMSERV HEALTHCARE INC. as of June 30, 1994 and for each
of the two years in the period ended June 30, 1994, appearing in the Prospectus,
which is part of this Registration Statement.
 
    We also consent to the reference to  us under the heading "Experts" in  such
Prospectus.
 
                                          /s/_DELOITTE & TOUCHE LLP
                                            Deloitte & Touche LLP
 
Las Vegas, Nevada
July 18, 1996

<PAGE>
                                                                   EXHIBIT 23(D)
 
          CONSENT OF PAUL JOSEPHSON C.P.A., P.C., INDEPENDENT AUDITORS
 
    We  consent to the reference to our  firm under the caption "Experts" and to
the use of our report dated June 5,  1995, with respect to the balance sheet  of
Long  Island Nursing  Registry, Inc.  and the  related statements  of income and
accumulated deficit and cash  flows and our  report on supplemental  information
also  dated June  5, 1995, included  in the  Proxy Statement of  Star Multi Care
Services, Inc. that is made a part of the Registration Statement (Form S-4)  and
Prospectus  of Star Multi Care Services, Inc. for the registration of its common
stock.
 
                                             /s/_PAUL JOSEPHSON C.P.A., P.C.
                                               Paul Josephson C.P.A., P.C.
 
Melville, New York
July 18, 1996

<PAGE>
                                                                   EXHIBIT 99(A)
                         STAR MULTI CARE SERVICES, INC.
                           99 RAILROAD STATION PLAZA
                              HICKSVILLE, NY 11801
 
                      THIS PROXY IS SOLICITED BY THE BOARD
                 OF DIRECTORS OF STAR MULTI CARE SERVICES, INC.
                    FOR THE SPECIAL MEETING OF SHAREHOLDERS
                     TO BE HELD ON FRIDAY, AUGUST 23, 1996
 
    The  undersigned holder of Common Stock of Star Multi Care Services, Inc., a
New York corporation  ("STAR"), hereby  appoints Stephen  Sternbach and  William
Fellerman,  and each  of them,  as proxies for  the undersigned,  each with full
power of substitution, for  and in the  name of the undersigned  to act for  the
undersigned  and to vote, as designated below, all of the shares of Common Stock
of STAR that  the undersigned  is entitled  to vote  at the  Special Meeting  of
Shareholders  of STAR, to be held on Friday, August 23, 1996 at 12:30 p.m. local
time, at the offices of Parker Chapin  Flattau & Klimpl, LLP, (18th Floor),  New
York, New York, and at any adjournments or postponements thereof.
<PAGE>
    THE  BOARD OF DIRECTORS RECOMMENDS A VOTE  IN FAVOR OF ADOPTION AND APPROVAL
OF THE AGREEMENT AND PLAN OF MERGER.
 
<TABLE>
<S>        <C>
1.         Adoption and approval of the Agreement and  Plan of Merger dated February 9, 1996,  as amended on July 18, 1996,  between
           AMSERV  HEALTHCARE INC., a Delaware corporation ("AMSERV") and STAR, providing for the merger of AHI Acquisition Corp., a
           Delaware corporation and a wholly-owned subsidiary of STAR, with and into AMSERV.
           / / FOR            / / AGAINST            / / ABSTAIN
2.         Upon such other matters as may properly come before the Special Meeting and any adjournments or postponements thereof. In
           their discretion, the proxies are  authorized to vote upon  such other business as may  properly come before the  Special
           Meeting  and any adjournments or postponements thereof. This proxy  does not convey discretionary authority to adjourn or
           postpone the meeting for the purpose of soliciting additional votes.
</TABLE>
 
                                               (CONTINUE AND SIGN ON OTHER SIDE)
<PAGE>
    THIS PROXY, WHEN  PROPERLY EXECUTED, WILL  BE VOTED IN  THE MANNER  DIRECTED
HEREIN  BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL
BE VOTED "FOR" THE PROPOSAL SET FORTH IN ITEM 1 AND WITH REGARD TO OTHER MATTERS
THAT MAY COME BEFORE THE SPECIAL  MEETING AND ANY ADJOURNMENTS OR  POSTPONEMENTS
THEREOF,  IN THE DISCRETION OF THE PROXYHOLDERS, AS DESCRIBED IN THE JOINT PROXY
STATEMENT.
 
    The undersigned hereby  acknowledges receipt  of the Notice  of the  Special
Meeting and the accompanying Joint Proxy Statement.
 
    Dated:               , 1996
 
                                             -----------------------------------
                                                         (Signature)
 
                                             -----------------------------------
                                                 (Signature if held jointly)
 
                                             Please   sign  exactly  as  name(s)
                                             appears hereon and mail it promptly
                                             even though you now plan to  attend
                                             the  Special  Meeting.  When shares
                                             are held  by  joint  tenants,  both
                                             should   sign.   When   signing  as
                                             Attorney, Executor,  Administrator,
                                             Guardian  or  Trustee,  please  add
                                             your  full  title  as  such.  If  a
                                             corporation,  please  sign  in full
                                             title as  such. If  a  corporation,
                                             please  sign in full corporate name
                                             by president  or  other  authorized
                                             officer.  If a  partnership, please
                                             sign   in   partnership   name   by
                                             authorized person.
 
    PLEASE MARK, SIGN AND DATE THIS PROXY CARD AND PROMPTLY RETURN IT IN THE
                               ENVELOPE PROVIDED.
              NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES.

<PAGE>
                                                                   EXHIBIT 99(B)
                             AMSERV HEALTHCARE INC.
                     PROXY SOLICITED ON BEHALF OF THE BOARD
              OF DIRECTORS FOR THE ANNUAL MEETING OF SHAREHOLDERS
                         TO BE HELD ON AUGUST 23, 1996
 
    The  undersigned hereby appoints George A. Rogers and Leslie Hodge, and each
of them, as proxies, each with the  power to appoint his or her substitute,  and
hereby  authorizes either of  them to act and  to vote at  the Annual Meeting of
Shareholders of AMSERV HEALTHCARE INC., a Delaware corporation ("AMSERV"), to be
held on August 23,  1996, and at any  adjournments or postponements thereof,  as
indicated  upon all matters referred to on  this proxy card and described in the
accompanying Joint Proxy Statement  for the meeting,  and, in their  discretion,
upon any other matters which may properly come before the meeting.
 
    THE  BOARD OF DIRECTORS OF AMSERV RECOMMENDS A VOTE "FOR" PROPOSALS 1, 2 AND
3.
<TABLE>
<S>        <C>
           Adoption and approval  of the  Agreement and  Plan of  Merger
           dated  as of February  9, 1996, as amended  on July 18, 1996,
1.         between AMSERV and STAR MULTI CARE SERVICES, INC., a New York
           corporation  ("STAR"),  providing  for  the  merger  of   AHI
           Acquisition  Corp., a Delaware corporation and a wholly-owned
           subsidiary of STAR, with and into AMSERV.
           / / FOR            / / AGAINST            / /
           ABSTAIN
2.         Elect members of the Board of Directors of AMSERV.
           / / FOR ALL nominees listed below
             (except as marked to the contrary).
 
<CAPTION>
 
2.
           / / WITHHOLD AUTHORITY to vote for
 
             all nominees listed below.
 
<CAPTION>
 
</TABLE>
 
Eugene J. Mora, Melvin L. Katten, Michael A. Robinton, George A. Rogers and Ben
                                  L. Spinelli
    (Instruction: To WITHHOLD AUTHORITY to vote for any individual nominee,
  draw a line through (or otherwise strike out) the nominee's name in the list
                                    above.)
<PAGE>
                                    (CONTINUED AND TO BE SIGNED ON REVERSE SIDE)
<PAGE>
<TABLE>
<S>        <C>
           Ratification and approval of the selection of Ernst & Young
3.         LLP as AMSERV's independent public accountants for the fiscal
           year ended June 29, 1996.
           / / FOR            / / AGAINST            / /
           ABSTAIN
 
<CAPTION>
 
<CAPTION>
3.
</TABLE>
 
    SHARES REPRESENTED  BY  ALL  PROPERLY  EXECUTED PROXIES  WILL  BE  VOTED  IN
ACCORDANCE  WITH INSTRUCTIONS APPEARING ON THIS PROXY CARD AND IN THE DISCRETION
OF THE PROXY HOLDERS AS TO ANY OTHER MATTERS WHICH MAY PROPERLY COME BEFORE  THE
MEETING.  THIS  PROXY  DOES NOT  CONVEY  DISCRETIONARY AUTHORITY  TO  ADJOURN OR
POSTPONE THE MEETING  FOR THE  PURPOSE OF  SOLICITING ADDITIONAL  VOTES. IN  THE
ABSENCE OF SPECIFIC INSTRUCTIONS, PROXIES WILL BE VOTED "FOR" PROPOSALS 1, 2 AND
3.
 
    The  undersigned hereby acknowledges receipt of the Notice of Annual Meeting
and the accompanying Joint Proxy Statement.
 
Dated:               , 1996
 
                                             -----------------------------------
                                                         (Signature)
 
                                             -----------------------------------
                                                         (Signature)
 
                                             Please sign as  name(s) appears  on
                                             this  proxy  card,  and  date  this
                                             proxy card.  If  a  joint  account,
                                             each  joint  owner  must  sign.  If
                                             signing  for   a   corporation   or
                                             partnership  as agent,  attorney or
                                             fiduciary, indicate the capacity in
                                             which you are signing.
 
    PLEASE MARK, SIGN AND DATE THIS PROXY CARD AND PROMPTLY RETURN IT IN THE
                               ENVELOPE PROVIDED.


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