LORD ABBETT TAX FREE INCOME FUND INC
485BPOS, 1996-04-25
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                                                      1940 Act File No. 811-3942
                                                     1933 Act File No. 333-01391
===================================================================


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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


                                    FORM N-14

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                       [ ] Pre-Effective Amendment No. __
   
                       [x] Post-Effective Amendment No. 1
    

                     LORD ABBETT TAX-FREE INCOME FUND, INC.
               (Exact Name of Registrant as Specified in Charter)


                  The General Motors Building, 767 Fifth Avenue
                            New York, New York 10153
                    (Address of Principal Executive Offices)
        Registrant's Telephone Number, Including Area Code: 800-426-1130


                               Kenneth B. Cutler
                          Vice President and Secretary
                     Lord Abbett Tax-Free Income Fund, Inc.
                          The General Motors Building
                                767 Fifth Avenue
                            New York, New York 10153
                    (Name and Address of Agent for Service)

                  Approximate Date of Proposed Public Offering:
 As soon as practicable after the effective date of the registration statement.


NO FILING  FEE IS  REQUIRED  BECAUSE  AN  INDEFINITE  NUMBER OF SHARES ARE BEING
REGISTERED PURSUANT TO RULE 24f-2 UNDER THE INVESTMENT COMPANY ACT OF 1940.

   
                   IT IS PROPOSED THAT THIS FILING WILL BECOME
                   EFFECTIVE ON THE DATE OF FILING PURSUANT TO
                           PARAGRAPH (b) OF RULE 485.
    

================================================================================
<PAGE>
 
<TABLE>    
<CAPTION>

                     Lord Abbett Tax-Free Income Fund, Inc.

                              CROSS-REFERENCE SHEET
                           ITEMS REQUIRED BY FORM N-14
PART A
ITEM NO.  ITEM CAPTION                                                  PROSPECTUS CAPTION
- --------  ------------                                                  ------------------
<S>       <C>                                                    <C>
1.        Beginning of Registration Statement and Outside        Cover Page of Registration Statement;
          Front Cover Page of Prospectus                         Cover Page of Proxy Statement and
                                                                 Prospectus

2.        Beginning and Outside Back Cover Page of               Table of Contents
          Prospectus

3.        Fee Table, Synopsis and Risk Factors                   Fee Table; Summary of Proposal


4.        Information about the Transaction                      Summary of Proposal; Information
                                                                 About the Reorganization


5.        Information about the Registrant                       Summary of Proposal; Comparative
                                                                 Information about the Acquiring Fund
                                                                 and the Acquired Fund; Additional
                                                                 Information; Prospectus of Lord
                                                                 Abbett Tax-Free Income Fund, Inc.
                                                                 dated February 1, 1996


6.        Information about the Company Being Acquired           Summary of Proposal; Comparative
                                                                 Information about the Acquiring Fund
                                                                 and the Acquired Fund


7.        Voting Information                                     Special Meeting of Shareholders of
                                                                 the Trust; Notice of Special Meeting
                                                                 of Shareholders; Summary of
                                                                 Proposal


8.        Interest of Certain Persons and Experts                Additional Information


9.        Additional Information Required for Reoffering         Not Applicable
          by Persons Deemed to be Underwriters


</TABLE>     
<PAGE>
 
<TABLE>
<CAPTION>

PART B                                                           STATEMENT OF ADDITIONAL
ITEM NO.  ITEM CAPTION                                           INFORMATION CAPTION
- --------  ------------                                           -------------------
<S>       <C>                                                    <C>
10.       Cover Page                                             Cover Page

11.       Table of Contents                                      Not Applicable

12.       Additional Information about the Registrant            Cover Page of Proxy Statement and
                                                                 Prospectus; Acquiring Fund
                                                                 Statement of Additional
                                                                 Information incorporated by
                                                                 reference.

13.       Additional Information about the Company Being         Cover Page of Proxy Statement and
          Acquired                                               Prospectus; Acquired Fund Statement
                                                                 of Additional Information incor
                                                                 porated by reference.

14.       Financial Statements                                   Pro-forma Financial Statements

PART C
ITEM NO.                                                         PART C CAPTION
- --------                                                         --------------
15.       Indemnification                                        Indemnification

16.       Exhibits                                               Exhibits

17.       Undertakings                                           Undertakings

Signatures
</TABLE>
<PAGE>
 
                         Lord Abbett Securities Trust -
                   Lord Abbett New York Tax-Free Income Trust

   
Dear Shareholder:

     You are cordially invited to attend the Special Meeting of Shareholders of
Lord Abbett Securities Trust scheduled to be held on June 19, 1996, at 11:00
a.m., at the General Motors Building, 767 Fifth Avenue, New York, New York. Your
Board of Trustees looks forward to greeting those shareholders who are able to
attend.

     At the meeting, in addition to the appointment of auditors, you will be
asked to approve or disapprove a proposal to combine your Fund with another Lord
Abbett fund which has an investment objective and policies substantially similar
to those of your Fund. The investment policies of the other fund are proposed to
be changed to provide greater conformity among the Lord Abbett-sponsored funds
and greater flexibility in the management of your Fund's portfolio.

     Such proposal, if approved, will eliminate the offering of substantially
identical funds, as well as take advantage of potential economies of scale. In
addition, the proposed combination will be a tax-free reorganization for federal
income tax purposes. Such proposal is fully described in the enclosed proxy
statement and prospectus. I encourage you to review the proxy statement and
prospectus for all the details regarding the meeting agenda.

     Your Board of Trustees believes the matters proposed in the agenda are in
the best interests of the Fund and its shareholders and unanimously recommends a
vote "for" each proposal. Regardless of the number of shares you own, it is
important that they be represented and voted. Accordingly, please sign, date and
mail the enclosed proxy card in the postage paid return envelope. If you have
any questions regarding the meeting agenda or need assistance in voting, please
contact our proxy solicitor, D.F. King & Co., Inc., at 1-800-207-3156.

     Your prompt response will help save the Fund the expense of additional
solicitation.
    

                                         Sincerely,

                                        /s/ RONALD P. LYNCH
                                         Ronald P. Lynch
                                         Chairman of the Board

   
April 24, 1996
    
<PAGE>
 
                         LORD ABBETT SECURITIES TRUST -
                   LORD ABBETT NEW YORK TAX-FREE INCOME TRUST
                                767 Fifth Avenue
                            New York, New York 10153



                                                                  April 24, 1996

   
Notice to shareholders of Lord Abbett New York Tax-Free Income
Trust (the "Acquired Fund") of a Special Meeting of shareholders
of Lord Abbett Securities Trust to be held on June 19, 1996



Notice is given hereby to the shareholders of the Acquired Fund of a special
meeting of the shareholders of Lord Abbett Securities Trust. The meeting will be
held in the offices of Lord, Abbett & Co., on the 11th floor of The General
Motors Building, 767 Fifth Avenue, New York, New York on June 19, 1996, at 11:00
a.m. for the following purposes and to transact such other business as may
properly come before the meeting and any adjournments thereof.

ITEM 1.   To consider and act upon an Agreement and Plan of Reorganization
          between the Acquired Fund, a series of Lord Abbett Securities Trust,
          and the New York Series, a series of Lord Abbett Tax-Free Income Fund,
          Inc. (the "Acquiring Fund"), providing for (a) the transfer of all of
          the assets of the Acquired Fund to the Acquiring Fund in exchange for
          shares of a new class of the Acquiring Fund (to be designated "Class C
          Shares") and the assumption by the Acquiring Fund of all of the
          liabilities of the Acquired Fund, (b) the distribution of such Class C
          Shares to the shareholders of the Acquired Fund and (c) the subsequent
          termination of the Acquired Fund. (The investment policies and
          restrictions of the Acquiring Fund are expected to differ from those
          of the Acquired Fund in ways that are intended to provide greater
          flexibility in the management of the portfolio of the Acquiring Fund
          and to provide greater uniformity in the investment policies and
          restrictions among the various Lord Abbett-sponsored funds.). A vote
          in favor of this Item 1 will be deemed to be a vote to authorize the
          Acquired Fund, as the sole shareholder of Class C Shares prior to this
          reorganization, to approve a proposed distribution plan pursuant to
          Section 12 of the Investment Company Act of 1940, as amended, and Rule
          12b-1 thereunder applicable to that class.


ITEM 2.   To ratify the selection of Deloitte & Touche LLP as the independent
          public accountants of the Lord Abbett Securities Trust for the current
          fiscal year.
    


                                            By order of the Board of Trustees


                                            Kenneth B. Cutler
                                            Vice President and Secretary
<PAGE>
 
   
The Board of Trustees has fixed the close of business on March 22, 1996 as the
record date for determination of shareholders of the Acquired Fund entitled to
notice of and to vote at the meeting. Shareholders are entitled to one vote for
each share held. As of March 22, there were 1,888,523 shares of the Acquired
Fund and 138,028,692 shares of Lord Abbett Securities Trust issued and
outstanding.
    



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

PLEASE INDICATE YOUR VOTING INSTRUCTIONS ON THE ENCLOSED PROXY CARD.

SIGN, DATE AND RETURN IT IN THE ENVELOPE PROVIDED.

TO SAVE THE COST OF ADDITIONAL SOLICITATIONS, PLEASE MAIL YOUR PROXY PROMPTLY.

- --------------------------------------------------------------------------------
<PAGE>
 
   
               PROXY STATEMENT AND PROSPECTUS DATED APRIL 24, 1996
    

                          Acquisition of the Assets of
             Lord Abbett New York Tax-Free Income Trust, a series of
                          Lord Abbett Securities Trust
                  The General Motors Building, 767 Fifth Avenue
                               New York, NY 10153
        
                    by and in exchange for Class C Shares of
                          New York Series, a series of
                     Lord Abbett Tax-Free Income Fund, Inc.
                  The General Motors Building, 767 Fifth Avenue
                               New York, NY 10153

         
   
     This Proxy Statement and Prospectus relates to Class C shares (the "Class C
shares") of the New York Series (the "Acquiring Fund"), a series of Lord Abbett
Tax-Free Income Fund, Inc. (the "Income Fund"), to be issued to, and in exchange
for all the assets of, Lord Abbett New York Tax-Free Income Trust (the "Acquired
Fund" and, together with the Acquiring Fund, the "Funds"), a series of Lord
Abbett Securities Trust (the "Trust"). The telephone number of the principal
executive office of each of the Funds is 1-800-426-1130. In exchange for such
assets, the Acquiring Fund will also assume all of the liabilities of the
Acquired Fund. Following receipt of the Acquiring Fund Class C shares, the
Acquired Fund will be terminated and the Class C shares will be distributed to
the shareholders of the Acquired Fund. The shareholders of the Acquired Fund are
being asked to vote to approve or disapprove these proposed transactions (the
"Reorganization"), which are more fully described in this Proxy Statement and
Prospectus.
    

     The Income Fund and the Trust are open-end diversified investment
management companies. The Acquired Fund seeks as high a level of interest income
exempt from federal and New York State and City personal income tax as is
consistent with preservation of capital. The Acquiring Fund currently has the
same investment objective but is seeking shareholder approval of the following
amended objective: to seek as high a level of interest income exempt from
federal and New York State and City personal income tax as is consistent with
reasonable risk. Lord, Abbett & Co. ("Lord Abbett") serves as investment manager
to both Funds.


   
    Any shareholder having a question regarding the meeting agenda or needing
    assistance in voting, should contact the Acquired Fund's proxy solicitor,
                    D.F. King & Co., Inc., at 1-800-207-3156.

  THESE SECURITIES 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
                 PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
                             IS A CRIMINAL OFFENSE.
    
<PAGE>
 
     The Class C shares of the Acquiring Fund will be a newly-created class of
shares that will share pro-rata with the existing class of Acquiring Fund shares
(the "Class A shares") in the portfolio, income and expenses of the Acquiring
Fund, except that each class will bear the expense of its own distribution and
shareholder servicing arrangements and certain other expenses. See "Information
About the Reorganization -- Shares of the Acquiring Fund." The distribution and
shareholder servicing arrangements for the Class C shares will be substantially
the same as the arrangements currently applicable to the Acquired Fund shares.
The trustees of the Trust believe that the proposed transaction will enable the
shareholders of the Acquired Fund to benefit from economies of scale while
continuing to invest in a portfolio of securities managed by Lord Abbett under
an investment objective substantially similar to that of the Acquired Fund. See
"Information About the Reorganization -- Reasons for the Reorganization."

   
     This Proxy Statement and Prospectus sets forth concisely the information
about the Acquiring Fund that a shareholder of the Acquired Fund should know
before voting on the Reorganization. It should be read and retained for future
reference. Attached as Exhibit A to this Proxy Statement and Prospectus is a
copy of the Agreement and Plan of Reorganization (the "Plan") for the
Reorganization. This Proxy Statement and Prospectus is accompanied by the
Prospectus of the Acquiring Fund dated February 1, 1996 (the "Acquiring Fund
Prospectus"), which Prospectus is incorporated by reference herein. Also
incorporated herein by reference are (a) the Statement of Additional Information
dated the date hereof relating to this Proxy Statement and Prospectus, including
the Statement of Additional Information of the Trust dated March 1, 1996 and the
Statement of Additional Information of the Acquiring Fund dated February 1,
1996, and (b) the Prospectus of the Trust dated March 1, 1996 (the "Acquired
Fund Prospectus"). Such Statements of Additional Information and the Acquired
Fund Prospectus are available, upon oral or written request, and at no charge,
from the Acquiring Fund, at its above-noted address or by calling
1-800-874-3733.
    
<PAGE>
 
<TABLE>    
<CAPTION>


                                TABLE OF CONTENTS

<S>                                                                          <C>
SPECIAL MEETING OF SHAREHOLDERS OF THE TRUST...............................    2

FEE TABLE..................................................................    3

ITEM 1. - APPROVAL OF THE AGREEMENT AND PLAN OF REORGANIZATION.............    4

      SUMMARY OF PROPOSAL..................................................    4

      INFORMATION ABOUT THE REORGANIZATION.................................    6

      COMPARATIVE INFORMATION ABOUT THE
            ACQUIRING FUND AND THE ACQUIRED FUND..........................    10

      REQUIRED VOTE.......................................................    13

ITEM 2. - RATIFICATION OR REJECTION OF
      INDEPENDENT PUBLIC ACCOUNTANTS......................................    13

ADDITIONAL INFORMATION....................................................    14

Exhibit A - Agreement and Plan of Reorganization

Exhibit B - Comparison of Certain Investment Policies and Restrictions
</TABLE>     
<PAGE>
 
   
                  SPECIAL MEETING OF SHAREHOLDERS OF THE TRUST


     This Prospectus and Proxy Statement is furnished in connection with the
solicitation of proxies by and on behalf of the Board of Trustees of the Trust
to be used at a Special Meeting of Shareholders of the Trust to be held at 11:00
a.m. on June 19, 1996, at the offices of Lord Abbett on the 11th floor of the
General Motors Building, 767 Fifth Avenue, New York, New York 10153, and at any
adjournments thereof. This Prospectus and Proxy Statement and the enclosed proxy
card are first being mailed to shareholders of the Acquired Fund on or about
April 24, 1996.


     At the close of business on March 22, 1996 (the "Record Date"), there were
issued and outstanding 1,888,523 shares of the Acquired Fund and 138,028,692
shares of the Trust. Only shareholders of record as of the close of business on
the Record Date will be entitled to notice of, and to vote at, the meeting or
any adjournment thereof. Shareholders of the Trust are entitled to one vote for
each share. Under Delaware law, shares owned by two or more persons (whether as
joint tenants, co-fiduciaries or otherwise) will be voted as follows, unless a
written instrument or court order providing to the contrary has been filed with
the Secretary of the Trust: (1) if only one votes, that vote binds all; (2) if
more than one votes, the vote of the majority binds all; and (3) if more than
one votes and the vote is evenly divided, the vote will be cast proportionately.

     If the enclosed form of proxy is properly executed and returned in time to
be voted at the meeting, the proxies named therein will vote the shares
represented by the proxy in accordance with the instructions marked thereon. A
proxy may be revoked by the signer at any time at or before the meeting by
written notice to the Trust, by execution of a later-dated proxy or by voting in
person at the meeting. Unless revoked, all valid proxies will be voted in
accordance with the specifications thereon or, in the absence of such
specifications, FOR approval of the Plan and the Reorganization, FOR
ratification of the selection of Deloitte & Touche as the Trust's independent
public accountants and on any other matters as deemed appropriate.

     Proxies will be solicited by mail. Additional solicitations may be made by
telephone, facsimile or personal contact by officers or employees of Lord Abbett
and its affiliates. The Trust may also request brokerage houses, custodians,
nominees, and fiduciaries who are shareholders of record to forward proxy
material to the beneficial owners. D.F. King & Co. has been retained to assist
in the solicitation of proxies at an estimated cost of $400. The cost of the
solicitation will be borne by the Acquired Fund.
    

     In the event that sufficient votes to approve the Plan are not received by
the meeting date, the persons named as proxies may propose one or more
adjournments of the meeting to permit further solicitation of proxies. In
determining whether to adjourn the meeting, the following factors may be
considered: the percentage of votes actually cast, the percentage of negative
votes actually cast and the nature of any further solicitation and any
information to be provided to shareholders with respect to such a solicitation.
Any such adjournment will require an affirmative vote of a majority of the
shares present in person or by proxy and entitled to vote at the meeting. The
persons named as proxies will vote upon such adjournment after consideration of
the best interests of all shareholders.
       


                                       2
<PAGE>
 
                                    FEE TABLE

   
     Set forth below is a summary of the expenses of the shares of the Acquiring
Fund (currently, the only class of Acquiring Fund shares, to be designated
"Class A"). Also set forth below is a summary comparison of the expenses of (a)
the shares of the Acquired Fund and (b) on a pro-forma basis after giving effect
to the Reorganization, the Class C shares of the Acquiring Fund (to be issued in
the Reorganization in exchange for the shares of the Acquired Fund). The annual
operating expenses shown in the summary comparison for the Acquiring Fund shares
and the Acquired Fund shares are the actual expenses for the fiscal years ended
September 30, 1995 and October 31, 1995, respectively, and those shown on a
pro-forma basis for the Class C shares of the Acquiring Fund are the estimated
expenses of such shares for the year ended September 30, 1995 had the
Reorganization occurred on October 1, 1994. The example set forth below is not a
representation of past or future expenses. Actual expenses may be greater or
less than those shown.     

<TABLE>    
<CAPTION>

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

                                                  Acquiring Fund shares                                    Acquiring Fund
Shareholder Transaction Expenses                    (to be designated                                      Class C shares
(as a percentage of offering price)                      Class A)             Acquired Fund shares          (pro-forma)
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                                      <C>                        <C>                        <C>
   Maximum Sales Load on Purchases(1).......             4.75%(2)                    None(3)                   None(3)
- ------------------------------------------------------------------------------------------------------------------------------------

   Deferred Sales Load (1)..................             None(2)                    1.00%(4)                   1.00%(4)
- ------------------------------------------------------------------------------------------------------------------------------------

Annual Operating Expenses                                                                                  
(as a percentage of average net assets)                                                                    
- ------------------------------------------------------------------------------------------------------------------------------------

      Management Fee........................             0.50%                      0.00%(5)                   0.50%
- ------------------------------------------------------------------------------------------------------------------------------------

      Rule 12b-1 Fees.......................             0.23%(2)                   0.92%(3)                   0.92%(3)
- ------------------------------------------------------------------------------------------------------------------------------------

      Other Expenses........................             0.09%                      0.00%(5)                   0.09%
- ------------------------------------------------------------------------------------------------------------------------------------

Total Operating Expenses....................             0.82%                      0.92%(5)                   1.51%
- ------------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
Example: Assume each Fund's annual return is 5% and there is no change in the
level of expenses described above. For every $1,000 invested, with reinvestment
of all distributions, you would pay the following total expenses if you closed
your account after the number of years indicated.

<CAPTION>
                                                               1 Year          3 Years         5 Years       10 Years
                                                               ------          -------         -------       --------
<S>                                                              <C>             <C>              <C>           <C> 
            Acquiring Fund Class A shares (6)                    $55             $72              $91           $144
            Acquired Fund shares (6)                              $9             $29              $51           $113
            Acquiring Fund Class C shares                        $15             $48              $82           $180
               (pro-forma)(6)
</TABLE>      
    
(1)  Sales "load" is referred to as sales "charge" and "deferred sales load" is
     referred to as "contingent deferred reimbursement charge" throughout this
     Proxy Statement and Prospectus.

(2)  See "Purchases" in the Acquiring Fund Prospectus accompanying this Proxy
     Statement and Prospectus for descriptions of the front-end sales charges
     and the 1% contingent deferred reimbursement charges payable on sales and
     certain redemptions of these shares and the Rule 12b-1 plan applicable to
     the shares of the Acquiring Fund.

(3)  Although the Acquired Fund does not, and the Acquiring Fund will not with
     respect to the Class C shares, charge a front-end sales charge, investors
     should be aware that long-term shareholders may pay, under the Rule 12b-1
     plan of the Acquired Fund and under the Rule 12b-1 plan to be applicable to
     the Class C shares of the Acquiring Fund (which pays and will pay annual
     0.25% service and 0.75% distribution fees), more than the economic
     equivalent of the maximum front-end sales charge as permitted by certain
     rules of the National Association of Securities Dealers, Inc.

(4)  Redemptions of the Acquired Fund shares are, and redemptions of the Class C
     shares will be, subject to a 1% contingent deferred reimbursement charge if
     the redemption occurs before the first anniversary of the share purchase.
     Holding periods for shares purchased prior to the Reorganization will carry
     over for the purpose of determining the applicability of the CDRC to Class
     C shares.

(5)  Lord Abbett waived its management fee and subsidized expenses with respect
     to the Acquired Fund during the past year. The management fee, other
     expenses (including the Rule 12b-1 Fees) and total operating expenses would
     have been 0.50%, 1.33% and 1.83%, respectively, absent such waiver. Lord
     Abbett intends to neither waive its management fee nor subsidize expenses
     for the years subsequent to the Reorganization with respect to Class C
     shares of the Acquiring Fund.

(6)  Based on total actual operating expenses and pro-forma operating expenses
     shown in the table above.      

The foregoing is provided to assist shareholders of the Acquired Fund in
understanding the various expenses the holders of the shares of the Acquiring
Fund and the holders of shares of the Acquired Fund have incurred and that
holders of the shares of the Acquired Fund might incur as holders of the Class C
shares following the Reorganization.
- --------------------------------------------------------------------------------


                                       3
<PAGE>
 
   
         ITEM 1. - APPROVAL OF THE AGREEMENT AND PLAN OF REORGANIZATION
    

                               SUMMARY OF PROPOSAL

     The following is a summary of certain information contained elsewhere or
incorporated by reference in this Proxy Statement and Prospectus and is
qualified in its entirety by reference to such information.

   
OVERVIEW OF PROPOSED REORGANIZATION. The Plan provides for the transfer to the
Acquiring Fund of all of the assets of the Acquired Fund in exchange for Class C
shares and the assumption by the Acquiring Fund of all of the liabilities of the
Acquired Fund. The Class C shares will then be distributed to the Acquired Fund
shareholders and the Acquired Fund will be terminated. As a result of the
Reorganization, each shareholder of the Acquired Fund will become the owner of
that number of full and fractional Class C shares having an aggregate net asset
value equal to the aggregate net asset value of his or her shares of the
Acquired Fund, as of the close of business on the date the Acquired Fund assets
are transferred to the Acquiring Fund. Consummation of the Reorganization is
subject to the approval of the Acquired Fund's shareholders and other
conditions, including Income Fund shareholder approval of an amendment to the
Income Fund's Articles of Incorporation authorizing the creation of the Class C
shares.
    

     To avoid a need to call an Acquiring Fund shareholders' meeting after the
Reorganization, shareholders of the Acquired Fund are being asked to authorize
the Acquired Fund, as the sole Class C shareholder of the Acquiring Fund before
the Reorganization, to approve the proposed distribution plan for the Class C
shares. A vote in favor of the Reorganization will be deemed also to be a vote
to authorize the Acquired Fund to take such action.

   
     The trustees of the Trust believe that the proposed Reorganization will
enable the shareholders of the Acquired Fund to benefit on a long-term basis
from economies of scale while continuing to invest in a portfolio of securities
managed by Lord Abbett under a similar investment objective to that of the
Acquired Fund. See "Information About the Reorganization -- Reasons for
Reorganization" for additional information about the reasons for the
Reorganization.
    

BUSINESSES OF THE ACQUIRED AND ACQUIRING FUNDS. The Acquired Fund is a
diversified series of the Trust, an open-end management investment company
organized as a Delaware business trust under an Agreement and Declaration of
Trust dated February 26, 1993. The Trust offers ten series, one of which is the
Acquired Fund, each consisting of one class of shares. The Acquired Fund
commenced investment operations on October 31, 1993. As of December 31, 1995,
the Acquired Fund's net assets were approximately $9 million.

   
     The Acquiring Fund is a diversified series of the Income Fund, an open-end
management investment company incorporated under Maryland law on December 27,
1983. To date, the Income Fund offers ten series, one of which is the Acquiring
Fund, each consisting of one class of shares. As of December 31, 1995, the
Acquiring Fund's net assets were approximately $355 million.

INVESTMENT OBJECTIVES AND POLICIES OF THE ACQUIRED FUND AND THE ACQUIRING FUND.
The Acquired Fund and Acquiring Fund have identical investment objectives: to
seek as high a level
    


                                       4
<PAGE>
 
   
of interest income exempt from federal and New York State and City personal
income tax as is consistent with preservation of capital. The Acquiring Fund is
seeking shareholder approval of the following amended objective: to seek as high
a level of interest income exempt from federal and New York State and City
personal income tax as is consistent with reasonable risk. For this purpose,
"reasonable risk" means that the Acquiring Fund over time will have a volatility
approximating the Lehman Brothers Current Coupon Long Index. The two Funds also
have generally similar investment policies and restrictions. The Acquiring Fund
is seeking to revise and reclassify certain of its investment policies and
restrictions in order to provide greater flexibility in managing the investment
portfolio of the Acquiring Fund and to provide greater uniformity in the
investment policies and restrictions among the various Lord Abbett-sponsored
funds. Most importantly, a number of the investment policies and restrictions
that are classified as fundamental for the Acquired Fund are to be reclassified
as non-fundamental for the Acquiring Fund. See "Comparative Information About
the Acquiring Fund and the Acquired Fund -Investment Objectives, Policies and
Restrictions."
    

     The portfolio of the Acquired Fund is expected to be suitable for the
Acquiring Fund, and so no significant realignment of that portfolio is expected
in connection with the Reorganization.

PURCHASES AND EXCHANGES. Shares of the Acquired Fund are, and Class C shares
will be, available through certain authorized dealers at the public offering
price, which is the net asset value per share. See "Information About the
Reorganization -- Shares of the Acquiring Fund." Shareholders of the Acquired
Fund may now exchange their shares for shares of the other nine series of the
Trust and for the shares of Lord Abbett U.S. Government Securities Money Market
Fund, Inc. It is expected that holders of Class C shares will be able to
exchange their shares for Class C shares of up to 13 other funds and series
managed by Lord Abbett. Each exchange represents a sale of shares for which a
shareholder may have to recognize a gain or loss under Federal income tax
provisions.

   
RULE 12b-1 PLAN. The Acquired Fund has adopted a plan pursuant to Section 12(b)
of the Investment Company Act of 1940 (the "1940 Act") and Rule 12b-1 thereunder
(a "Rule 12b-1 Plan"), under which it pays service and distribution fees at the
time shares are sold not to exceed 1% of the net asset value of such shares and
at each quarter-end after the first anniversary of the sale of shares at an
annual rate not to exceed 1% of the net asset value of such shares then
outstanding. As part of the Reorganization, the Acquiring Fund will adopt a Rule
12b-1 Plan applicable to the Class C shares that will be substantially the same
as the Acquired Fund's Rule 12b-1 Plan, except as noted below under "Information
About the Reorganization -- Rule 12b-1 Plan."
    

DIVIDEND POLICIES AND OPTIONS. The Acquired Fund distributes net investment
income monthly as a dividend. It may also pay supplemental dividends and capital
gains distributions in December or January. The Acquiring Fund has a similar
dividend and distribution policy. The shareholders of each Fund may reinvest
such dividends and distributions in additional shares at net asset value or take
such amounts in cash.

REDEMPTION PROCEDURES. The redemption procedures of the Acquired Fund and the
Acquiring Fund are substantially the same. See the Acquiring Fund Prospectus
under "Redemptions."


                                       5
<PAGE>
 
TAX CONSIDERATIONS. The consummation of the Reorganization is subject to receipt
of an opinion of counsel, substantially to the effect that, among other things,
the Reorganization will not cause a gain or loss to be recognized by the
Acquired Fund or its shareholders for federal income tax purposes. See
"Information about the Reorganization--Federal Income Tax Considerations."

   
RISK FACTORS. Because the investment objective of the Acquired Fund is similar
to the investment objective of the Acquiring Fund as proposed to be amended,
Lord Abbett believes that the relative risks involved in investing in the Funds
can be considered similar. However, the investment policies and restrictions of
the Acquiring Fund are proposed to be made less restrictive compared to those of
the Acquired Fund in order to provide greater flexibility in the future
management of the investment portfolio of the Acquiring Fund and to provide
greater uniformity in the investment policies and restrictions among the various
Lord Abbett-sponsored funds. If the Acquiring Fund were to take to any
significant extent the actions permitted by these less restrictive policies and
restrictions, a result not now anticipated, the risks of investing in the
Acquiring Fund could be greater than those involved in investing in the Acquired
Fund. See "Comparative Information About the Acquiring Fund and the Acquired
Fund -- Investment Objectives, Policies and Restrictions."
    

                      INFORMATION ABOUT THE REORGANIZATION

   
THE PLAN. On July 12, 1996, assuming the conditions referred to below are
satisfied, the Acquired Fund will transfer all its assets to the Acquiring Fund
(the date of such transfer is referred to herein as the "Closing Date") in
exchange for (i) Class C shares of the Acquiring Fund having an aggregate net
asset value equal to the aggregate value of the assets, less liabilities, of the
Acquired Fund and (ii) the assumption by the Acquiring Fund of all the
liabilities of the Acquired Fund. The Acquired Fund will distribute as of the
Closing Date such Class C shares pro-rata to its shareholders of record,
determined as of the close of business on the Closing Date, in redemption and
cancellation of their shares of the Acquired Fund. The net asset value of Class
C shares and the value of the Acquired Fund's assets and the amount of its
liabilities will be determined as of the Closing Date in accordance with the
valuation procedures set forth in the Income Fund's Articles of Incorporation
(see "Purchases" in the Acquiring Fund Prospectus). The valuation procedures
used by the Acquiring Fund are the same as those used by the Acquired Fund.

     The obligations of the Acquiring Fund and the Acquired Fund to consummate
the Reor ganization are subject to the satisfaction of certain conditions
precedent, including (a) approval and authorization of the Reorganization by the
vote of a majority of the shares of the Acquired Fund voted on the matter if a
quorum is present, (b) receipt of a favorable ruling from the Internal Revenue
Service to the effect that the issuance of various classes of shares by the
Acquiring Fund will not result in dividends or distributions of the Acquiring
Fund constituting "preferential dividends" under the Internal Revenue Code of
1986, as amended (the "Code"), (c) receipt of a favorable opinion of legal
counsel as to the federal income tax consequences of the proposed transaction as
described below under "Federal Income Tax Considerations", and (d) approval by
the shareholders of the Income Fund of an amendment to its Articles of
Incorporation authorizing the creation of additional classes of shares.
    

     The foregoing summary of the Plan does not purport to be complete, and is
subject in all respects to the provisions of, and is qualified in its entirety
by reference to, the Plan, a copy of which is attached as Exhibit A.


                                       6
<PAGE>
 
   
REASONS FOR THE REORGANIZATION. The Board of Trustees of the Trust and the Board
of Directors of the Income Fund, including in each case a majority who are not
"interested persons" (as defined in the 1940 Act) of either the Income Fund, the
Trust or Lord Abbett, approved the Plan and the Reorganization on March 14,
1996, and in this connection determined that participation in the proposed
Reorganization is in the best interests of the shareholders of each of the Funds
and that the interests of existing shareholders of the Funds will not be diluted
as a result of the Reorganization. In doing so, both boards considered the
estimated expenses to be incurred by the Funds in connection with the
Reorganization and several other factors, including (a) that the shareholders of
the Acquired Fund are expected to benefit from economies of scale as
shareholders of the larger Acquiring Fund, while continuing to invest in a
portfolio of securities managed by Lord Abbett under a substantially similar
investment objective, and (b) that the implementation of a multi-class fund
structure for the Acquiring Fund is expected to (i) enable investors in the
Acquiring Fund to choose the distribution option that best suits their
individual situations, (ii) facilitate distribution of the Acquiring Fund's
shares, and (iii) maintain the competitive position of the Acquiring Fund in
relation to other funds that have implemented or are seeking to implement
similar distribution arrangements.
    

     The trustees of the Trust and the directors of the Income Fund are the same
individuals, except that E. Wayne Nordberg is a director of the Income Fund but
not a trustee of the Trust.

SHARES OF THE ACQUIRING FUND. On or before the Closing Date, the Acquiring Fund
will have two classes of shares, Class A shares (the existing class of the
Acquiring Fund) and Class C shares (to be received by the shareholders of the
Acquired Fund in the Reorganization). Each share of the Acquiring Fund,
regardless of class, will share pro-rata (based on net asset value) in the
portfolio and income of the Acquir ing Fund and in the Acquiring Fund's
expenses, except for differences in expenses resulting from different Rule 12b-1
Plans for the classes and certain other class specific expenses. See "Rule 12b-1
Plans" below. After the Reorganization, Class C shares will be offered at net
asset value without an initial sales charge but if redeemed for cash before the
first anniversary of purchase, will be subject to a contingent deferred
reimbursement charge (a "CDRC") equal to 1% of the lower of their cost or then
net asset value. Holding periods for shares purchased prior to the
Reorganization will carry over for the purpose of determining the applicability
of the CDRC.

     After the Closing Date, the Acquiring Fund may create and issue one or more
classes of shares in addition to the Class A and C shares.

     Shares of all classes of the Acquiring Fund will vote together on all
matters affecting the Acquiring Fund, except for matters, such as approval of a
Rule 12b-1 Plan, affecting only a particular class or classes. All shares voting
on a matter will have identical voting rights. All issued shares of the
Acquiring Fund are fully paid and non-assessable, and shareholders have no
preemptive or other right to subscribe to any additional shares. All shares
within a series will have the same rights and be subject to the same limitations
with respect to dividends, redemptions and liquidation except for differences
resulting from class-specific Rule 12b-1 plans and related service plans and
certain other class-specific expenses.

   
RULE 12b-1 PLANS. The Acquiring Fund is adopting a Rule 12b-1 Plan for the Class
C shares (the "Class C 12b-1 Plan") substantially the same as the plan currently
in effect for the Acquired Fund, except for the changes noted below. The
Acquired Fund's plan provides for payments to dealers through Lord
    


                                       7
<PAGE>
 
Abbett of distribution and service fees (a) at the time shares are sold, not to
exceed 0.75% and 0.25%, respectively, of the net asset value of the shares sold
and (b) at the end of the quarter following the first anniversary of the sale of
shares, and quarterly thereafter, at an annual rate not to exceed 0.75% and
0.25%, respectively, of the net asset value of such shares, including any shares
issued for reinvested dividends and distributions after such first anniversary,
so long as such shares remain outstanding. Lord Abbett may retain from the
quarterly distribution fee, for the payment of distribution expenses incurred
directly by it, an amount not to exceed 0.10% of the average annual net asset
value of such shares outstanding. See the Acquired Fund Prospectus under
"Purchases" for additional information concerning the Rule 12b-1 Plan of the
Acquired Fund.

   
     There are two substantive changes in the Class C 12b-1 Plan: First,
payments under the plan may be made to all institutions and persons permitted by
applicable law and/or rules to receive such payments ("Authorized
Institutions"), rather than just to dealers, as is the case under the Acquired
Fund's plan; and Second, the other party to the Class C 12b-1 Plan is to be Lord
Abbett Distributor, LLC, a New York limited liability company, to be formed as a
subsidiary of Lord Abbett ("Lord Abbett Distributor"), rather than Lord Abbett
itself. Lord Abbett Distributor will take on all the underwriting functions
currently performed directly by Lord Abbett.
    

     The Acquiring Fund will pay smaller Rule 12b-1 distribution and service
fees in connection with the Class A shares. However, the Acquiring Fund will
sell those shares subject to an initial sales charge (see the Acquiring Fund
Prospectus under "Purchases"). The Acquired Fund does not impose, and the
Acquiring Fund will not impose with respect to the Class C shares, an initial
sales charge.

     The Class C 12b-1 Plan was approved on March 14, 1996, by the directors of
the Income Fund, including a majority of the directors who are not "interested
persons" of the Income Fund or the Acquiring Fund within the meaning of the 1940
Act and who will have no direct or indirect financial interest in the operations
of such plan or in any agreements related thereto. Prior to the Reorganization,
the Acquired Fund will purchase one Class C share, and as sole shareholder, will
approve the Class C 12b-1 Plan prior to that class being issued to the Acquired
Fund in the Reorganization. A vote in favor of the Reorganization will be deemed
also to be a vote to authorize the Acquired Fund to take such action.

FEDERAL INCOME TAX CONSIDERATIONS. The consummation of the Reorganization is
conditioned upon the receipt of an opinion of Debevoise & Plimpton, legal
counsel to the Acquiring Fund and the Acquired Fund, substantially to the effect
that, for Federal income tax purposes:

          (a) no gain or loss will be recognized by the Acquired Fund upon the
     transfer of the Acquired Fund's assets to the Acquiring Fund in exchange
     for Class C shares and the assumption by the Acquir ing Fund of the
     liabilities of the Acquired Fund or upon the distribution of the Class C
     shares to the Acquired Fund's shareholders;

          (b) no gain or loss will be recognized by the Acquiring Fund upon the
     receipt of the assets of the Acquired Fund in exchange for Class C shares
     and the assumption by the Acquiring Fund of the liabilities of the Acquired
     Fund;


                                       8
<PAGE>
 
          (c) no gain or loss will be recognized by shareholders of the Acquired
     Fund upon the exchange of their Acquired Fund shares for Class C shares;

          (d) the aggregate tax basis of the Class C shares received by any
     Acquired Fund shareholder pursuant to the Reorganization will be the same
     as the aggregate tax basis of the Acquired Fund shares held by such
     shareholder immediately prior to the Reorganization, and the holding period
     for the Class C shares to be received by any Acquired Fund shareholder will
     include the period during which the Acquired Fund shares exchanged therefor
     were held by such shareholder (provided that the Acquired Fund shares were
     held as capital assets on the date of the Reorganization); and

          (e) the tax basis of the Acquired Fund's assets acquired by the
     Acquiring Fund will be the same as the tax basis of such assets to the
     Acquired Fund immediately prior to the Reorganization, and the holding
     period of the assets of the Acquired Fund in the hands of the Acquiring
     Fund will include the period during which those assets were held by the
     Acquired Fund.

     The Funds have not sought a tax ruling from the Internal Revenue Service
with respect to the tax consequences of the Reorganization, but will act in
reliance upon the opinion of counsel. Such opinion is not binding on the
Internal Revenue Service. Since the foregoing discussion relates only to the
general Federal income tax consequences of the Reorganization, shareholders
should also consult their tax advisors as to any state or local tax consequences
of the Reorganization to them and any special circumstances that may apply in
their individual circumstances.

   
EXPENSES OF THE REORGANIZATION. Expenses of the Reorganization, including legal
and accounting expense, the costs of proxy solicitation and the preparation of
this Prospectus and Proxy Statement, will be borne in part by the Acquiring Fund
and in part by the Acquired Fund. If the Reorganization is consummated, the
expenses of the Acquired Fund, to the extent not paid prior to the Closing Date,
will be assumed by the Acquiring Fund and taken into account in determining the
net assets of the Acquired Fund for the purpose of calculating the number of
Class C shares to be issued to the Acquired Fund.
    

CAPITALIZATION. The following table sets forth the capitalization of the
Acquiring Fund and the Acquired Fund as of December 31, 1995, and the pro-forma
capitalization of the Acquiring Fund as if the Reorganization had occurred on
that date:


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
                                                                                CLASS A              CLASS C
                                                                               ACQUIRING            ACQUIRING
                                                                                 FUND                 FUND
                                    ACQUIRING FUND     ACQUIRED FUND          (PRO-FORMA -         (PRO-FORMA -
                                     (UNAUDITED)        (UNAUDITED)            UNAUDITED)           UNAUDITED)
                                     -----------        -----------            ----------           ----------
- ------------------------------------------------------------------------------------------------------------------------
                                                        (In thousands, except per share values)
- ------------------------------------------------------------------------------------------------------------------------
     <S>                                  <C>                 <C>                 <C>                   <C>   
     Net Assets................           $355,094            $9,148              $355,094              $9,148
- ------------------------------------------------------------------------------------------------------------------------
     Net Asset Value per Share.             $11.08            $ 4.74                $11.08              $11.08
- ------------------------------------------------------------------------------------------------------------------------
     Shares Outstanding:                    30,254             1,931                30,254                 826
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>


                                        9
<PAGE>
 
     The foregoing table reflects a pro-forma exchange ratio of approximately
0.4 Class C shares for each Acquired Fund share. If the Reorganization is
consummated, the actual exchange ratio may vary from this ratio due to changes
in the market value of the portfolio securities of both the Acquiring Fund and
the Acquired Fund between December 31, 1995 and the Closing Date, and changes in
the amounts of undistributed net investment income and accrued liabilities of
the Acquiring Fund and the Acquired Fund during that period.


                        COMPARATIVE INFORMATION ABOUT THE
                      ACQUIRING FUND AND THE ACQUIRED FUND

FEES AND EXPENSES. Both the Acquiring Fund and the Acquired Fund employ Lord
Abbett as their investment manager. Under the management agreement between the
Income Fund and Lord Abbett, the Income Fund, on behalf of the Acquiring Fund,
pays a monthly fee, based on average daily net assets for each month, at the
annual rate of 0.50 of 1%. For the fiscal year ended September 30, 1995, the
Acquiring Fund paid Lord Abbett a management fee at an annual rate of 0.50 of 1%
of average daily net assets. This management agreement will continue in effect
following the Reorganization.

   
     Under the management agreement between the Trust and Lord Abbett, the
Trust, on behalf of the Acquired Fund, is obligated to pay a monthly fee at the
annual rate of 0.50 of 1% of average daily net assets. For the fiscal year ended
October 31, 1995, Lord Abbett waived all of the management fee payable by the
Acquired Fund. Lord Abbett has advised the Acquiring Fund that it does not
intend to waive any portion of the management fee payable by the Acquiring Fund
following the consummation of the Reorganization.

     The management agreement provides for the Acquired Fund to repay Lord
Abbett without interest for any expenses of the Acquired Fund paid or reimbursed
by Lord Abbett, as follows: if the Acquired Fund's annual expense ratio
(determined before taking into account any fee waiver or expense payment or
reimbursement by Lord Abbett) is less than 1.95% after the first day of the
calendar quarter after the net assets of the Acquired Fund first reach $50
million (the "commencement date"), the Acquired Fund will repay Lord Abbett an
amount sufficient to increase the expense ratio to 1.95%. The Acquired Fund is
not obligated to repay any such expenses after the earlier of the termination of
the management agreement or the end of five full fiscal years after the
commencement date. The contingent obligation to repay such expenses, which
totaled $77,555 as of December 31, 1995, will be extinguished upon the
consummation of the Reorganization. The Acquiring Fund has no such contingent
obligation.

     As shown above under "Fee Table," the pro-forma expense ratio for the Class
C shares was 1.51%, compared to the actual expense ratio of 0.92% for the
Acquired Fund. If Lord Abbett had not waived its management fee and subsidized
expenses for the Acquired Fund, the Acquired Fund's expense ratio for such year
would have been 1.83%.

INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS. The Acquired Fund and
Acquiring Fund have identical investment objectives: to seek as high a level of
interest income exempt from federal and New York State and City personal income
tax as is consistent with preservation of capital. The Acquiring Fund is seeking
shareholder approval of the following amended objective: to seek as high a level
of interest income exempt from federal and New York State and City personal
income tax as is consistent
    


                                       10
<PAGE>
 
   
with reasonable risk. For this purpose, "reasonable risk" means that the
Acquiring Fund over time will have a volatility approximating the Lehman
Brothers Current Coupon Long Index.

     The Acquired Fund and the Acquiring Fund have substantially the same
investment policies and restrictions. However, the Acquiring Fund is seeking
approval of its shareholders to simplify and make less restrictive its
investment policies and restrictions in order to provide greater flexibility in
managing its investment portfolio and to provide greater uniformity in the
investment policies and restrictions among the various Lord Abbett-sponsored
funds. A number of the investment policies and restrictions that are classified
as fundamental for the Acquired Fund are to be reclassified as non-fundamental
for the Acquiring Fund. In other instances, certain fundamental restrictions of
the Acquired Fund are to be modified or eliminated in the case of the Acquiring
Fund. Fundamental investment restrictions may not be changed without approval of
the shareholders of a fund and the costs of shareholder meetings for these
purposes generally are borne by the fund and its shareholders. The board may
amend a non-fundamental restriction as it deems appropriate and in the best
interest of the fund and its shareholders, without incurring the costs of
seeking a shareholder vote.

     The principal effect for the shareholders of the Acquired Fund of the
proposed changes in the fundamental policies of the Acquiring Fund will be to
permit the Acquiring Fund to take certain actions not now permitted to the
Acquired Fund without obtaining approval of the shareholders. The Acquiring Fund
either will not be permitted to, or does not intend to, take any such action
unless such action is approved by its Board of Directors. The board does not now
intend to approve any such action or to do so in the future unless it deems such
action to be an appropriate means of seeking the Acquiring Fund's investment
objective in the best interests of the Acquiring Fund and its shareholders, in
which case disclosure of the change would be made in the Income Fund's then
current prospectus or statement of additional information or both. Such actions,
none of which the board has a present intention of approving, involve the
following matters, among others: (i) short sales of securities and purchases of
securities on margin to the extent permitted by applicable law; (ii) borrowings
from banks in amounts up to one-third of total assets (and up to an additional
5% of total assets for temporary purposes) and such short-term credits as may be
necessary for the clearance of purchases and sales of portfolio securities;
(iii) loans of portfolio securities to the extent permitted by law; (iv)
purchases and sales of securities directly or indirectly secured by real estate
or interests therein and of commodities and commodity contracts in accordance
with applicable law so long as registration would not be required as a commodity
pool operator under the Commodity Exchange Act; (v) pledges to secure borrowings
or in connection with the Acquiring Fund's investment policies and as permitted
by applicable law; (vi) investments in the securities of other investment
companies to the extent permitted by applicable law; and (vii) purchase and sale
of puts, calls, straddles or spread options.

     A summary comparison of the fundamental and certain non-fundamental
investment policies and restrictions of the Acquired Fund and of the Acquiring
Fund, as currently in effect and as proposed to be amended, is set forth in
Exhibit B to this Proxy Statement and Prospectus.
    

     For a full discussion and statement of the Acquiring Fund's investment
objectives, policies and restrictions, see "Investment Objective" and "How We
Invest" in the Acquiring Fund Prospectus and "Investment Objective and Policies"
in the Acquiring Fund Statement of Additional Information. For a full discussion
and statement of the Acquired Fund investment objectives, policies and
restrictions, see "Investment Objective" and "How We Invest" in the Acquired
Fund Prospectus and "Investment Objective


                                       11
<PAGE>
 
and Policies" in the Acquired Fund Statement of Additional Information. The
summary comparison set forth in Exhibit B does not purport to be complete, and
is subject in all respects to, and is qualified in its entirety by reference to,
such statements of such policies and restrictions.

   
Shareholders' Rights. The Acquiring Fund believes that the rights of the
Acquired Fund shareholders will not change in an adverse way as a result of the
Reorganization. After the Reorganization, the rights of the former shareholders
of the Acquired Fund (Class C shareholders of the Acquiring Fund) will be
governed by the Income Fund's Articles of Incorporation, By-Laws and applicable
Maryland law rather than by the Trust's Declaration of Trust and By-Laws and
applicable Delaware law. The operations of the Acquiring Fund will continue to
be subject to the provisions of the 1940 Act and the rules and regulations of
the Commission thereunder.

     The current Board of Directors of the Income Fund comprises the same
individuals as the current Board of Trustees of the Trust, except that E. Wayne
Nordberg is a director of the Income Fund but not a trustee of the Trust. The
responsibilities, powers and fiduciary duties of the directors of the Income
Fund are substantially the same as those of the trustees of the Trust. The
Income Fund's By-Laws provide for indemnification of the directors for actual or
threatened liabilities arising out of the directors' service in their capacity
as directors of the Income Fund, subject only to the conditions and limitations
of applicable law. The Trust's Declaration of Trust provides for indemnification
of the trustees against certain liabilities and expenses, except with respect
to, among other matters, (i) any matter as to which any trustee has been
adjudicated to have not acted in good faith in the reasonable belief that his or
her action was in the best interest of the Acquired Fund, or (ii) any liability
by reason of willful misfeasance, bad faith, gross negligence or reckless
disregard of duties. Trust shareholders may remove a trustee by a vote of two
thirds of the eligible shares. Income Fund shareholders may remove a director by
the vote of a majority of eligible shares.

     Neither the Trust nor the Income Fund regularly holds shareholder meetings.
The By-laws of both provide that a meeting of shareholders will be held upon the
written request of holders of at least 25% of votes entitled to be cast.

     The foregoing is only a summary of certain rights of the shareholders of
the Acquired Fund and of the rights these shareholders will have following the
Reorganization as holders of Class C shares of the Acquiring Fund. It is not a
complete description of the Declaration of Trust of the Trust, the Articles of
Incorporation of the Income Fund, the By-Laws of either entity or the applicable
Delaware or Maryland law. Shareholders desiring additional information about
those documents and provisions of law should refer to such Declaration of Trust,
Articles of Incorporation, By-Laws and provisions.


                                  REQUIRED VOTE

     Approval of the Plan and the Reorganization will require the affirmative
vote of a majority of the shares of the Acquired Fund voted on the matter.

     If an Acquired Fund shareholder abstains from voting on this matter, then
the shares held by such shareholder shall be deemed present at the meeting for
purposes of determining a quorum, but shall not be deemed to have been voted on
this matter. If a broker returns a "non-vote" proxy, indicating a
    


                                       12
<PAGE>
 
   
lack of authority to vote on this matter, then the shares covered by such
non-vote shall be deemed present at the meeting for purposes of determining a
quorum, but shall not be deemed to have been voted on this matter.

     If the Plan is not approved by the shareholders of the Acquired Fund, or if
the Reorganization is not consummated for any other reason, the Acquired Fund
will continue to engage in business as Lord Abbett New York Tax-Free Income
Trust, a series of Lord Abbett Securities Trust.
    

     The Board of Trustees of the Trust recommends that shareholders vote FOR
the approval of the proposed Agreement and Plan of Reorganization and the
Reorganization.


                     ITEM 2. - RATIFICATION OR REJECTION OF
                         INDEPENDENT PUBLIC ACCOUNTANTS

   
     The Board of Trustees of the Trust has selected Deloitte & Touche LLP as
the independent public accountants for the Trust for the fiscal year ending
October 31, 1996. The Act requires that such selection be submitted for
ratification or rejection at the next annual meeting of shareholders if such
meeting be held. Deloitte & Touche LLP (or a predecessor firm) acted as the
Trust's independent public accountants for the year ended October 31, 1995, and
for a number of years prior thereto. Based on in formation in the possession of
the Trust, and information furnished by Deloitte & Touche LLP, the firm has no
direct financial interest and no material indirect financial interest in the
Trust. A representative of Deloitte & Touche LLP is expected to attend the
annual meeting and will be provided with an oppor tunity to make a statement and
answer appropriate questions.

     Ratification of the selection of Deloitte & Touche LLP by the shareholders
of the Trust requires the affirmative vote of a majority of the shares of the
Trust voted on this matter. If a shareholder abstains from voting on this
matter, then the shares held by such shareholder shall be deemed present at the
meeting for purposes of determining a quorum, but shall not be deemed to have
been voted on this matter. If a broker returns a "non-vote" proxy, indicating a
lack of authority to vote on this matter, then the shares covered by such
non-vote shall be deemed present at the meeting for purposes of determining a
quorum, but shall not be deemed to have been voted on this matter.
    

     The Board of Trustees of the Trust recommends that shareholders vote to
ratify the selection of Deloitte & Touche LLP as the Trust's independent public
accountants for the fiscal year ending October 31, 1996.


                             ADDITIONAL INFORMATION

   
     To the knowledge of the Income Fund and the Trust, as of March 22, 1996, no
person owned of record or beneficially 5% or more of the outstanding shares of
the Income Fund, the Acquiring Fund, the Acquired Fund or the Trust. As of March
22, 1996, the directors and officers of the Income Fund, as a group, owned 1.15%
of the outstanding shares of the Income Fund.
    


                                       13
<PAGE>
 
   
     The Income Fund (of which the Acquiring Fund is a series) and the Trust (of
which the Acquired Fund is a series) are subject to the informational
requirements of the Securities Exchange Act of 1934 and in accordance therewith
file reports, proxy statements and other information with the Securities and
Exchange Commission. Such reports, proxy statements and other information filed
by such entities can be inspected and copied at the public reference facilities
of the Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C., and at
the Northeast Regional Office in New York, 7 World Trade Center, 13th Floor, New
York, New York. Copies of such material can also be obtained by mail from the
Public Reference Branch, Office of Consumer Affairs and Information Services,
Securities and Exchange Commission, Washington, D.C. 20549 at prescribed rates.
    


                                       14
<PAGE>
 
                                                                       EXHIBIT A
                                                                       ---------




                      AGREEMENT AND PLAN OF REORGANIZATION

   
          THIS AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is made as
of this day of , 1996, by and between Lord Abbett Tax-Free Income Fund, Inc.
(the "Income Fund"), a Maryland corporation, on behalf of its series the New
York Series (the "Acquiring Fund") and Lord Abbett Securities Trust (the
"Trust"), a Delaware business trust, on behalf of its series Lord Abbett New
York Tax-Free Income Trust (the "Acquired Fund").
    

          WHEREAS, this Agreement is intended to be and is adopted as a plan of
reorganization and liquidation within the meaning of Section 368(a)(1)(C) of the
United States Internal Revenue Code of 1986, as amended (the "Code");

          WHEREAS, the reorganization (the "Reorganization") will consist of the
transfer of all of the assets of the Acquired Fund in exchange for Class C
shares of capital stock of the Acquiring Fund (the "Acquiring Fund Class C
Shares" and each an "Acquiring Fund Class C Share") and the assumption by the
Acquiring Fund of all of the liabilities of the Acquired Fund and the
distribution, after the Closing Date herein referred to, of Acquiring Fund Class
C Shares to the shareholders of the Acquired Fund in termination of the Acquired
Fund, all upon the terms and conditions hereinafter set forth in this Agreement;

          WHEREAS, the Trust and the Income Fund are open-end, registered
investment companies of the management type;

          WHEREAS, the Acquiring Fund is a series of the Income Fund;

          WHEREAS, the Acquired Fund is a series of the Trust and the Acquired
Fund owns securities that generally are of the character in which the Acquiring
Fund is permitted to invest;

          WHEREAS, the Acquiring Fund is authorized to issue and currently has
outstanding a single class of shares (the "Acquiring Fund Class A Shares"), and
prior to the consummation of the Reorganization, will seek to amend its Articles
of Incorporation to provide for the authorization and issuance of shares of
additional classes of capital stock, including Acquiring Fund Class C Shares,
which will share pro rata with each other class in the portfolio, income and
expenses of the Acquiring Fund, except that each class will bear the expense of
its own distribution and shareholder servicing arrangements and certain other
expenses;
<PAGE>
 
          WHEREAS, after the multiple class share structure is authorized by the
Acquiring Fund but before the Acquiring Fund Class C Shares are issued to the
Acquired Fund pursuant to the Reorganization, the Acquired Fund is to purchase
one Acquiring Fund Class C share and as sole shareholder approve a plan pursuant
to Section 12(b) of the Investment Company Act of 1940 (the "1940 Act") and Rule
12b- 1 thereunder (a "Rule 12b-1 Plan") applicable to the Acquiring Fund Class C
Shares;

          WHEREAS, the Board of Trustees, including a majority of the Trustees
who are not "interested persons" (as defined under the 1940 Act ), of the Trust
has determined that the Reorganization is in the best interests of the Acquired
Fund's shareholders and that the interests of the existing shareholders of the
Acquired Fund will not be diluted as a result of this transaction; and

          WHEREAS, the Board of Directors, including a majority of the Directors
who are not "interested persons" (as defined under the 1940 Act) of the Income
Fund, has determined that the Reorganization is in the best interests of the
Acquiring Fund's shareholders and that the interests of the existing
shareholders of the Acquiring Fund will not be diluted as a result of this
transaction;

          NOW THEREFORE, in consideration of the premises and of the agreements
hereinafter set forth, the parties hereto agree as follows:

1.       REORGANIZATION.

          1.1. Subject to the terms and conditions herein set forth and on the
basis of the representations and warranties contained herein, the Trust will
transfer assets of the Acquired Fund as set forth in paragraph 1.2 to the
Acquiring Fund, and the Acquiring Fund will in exchange therefor, (i) deliver to
the Acquired Fund the number of Acquiring Fund Class C Shares, including
fractional Acquiring Fund Class C Shares, determined by dividing the net value
of the Acquired Fund's assets so transferred computed in the manner and as of
the time and date set forth in para graph 2.1, by the net asset value of one
Acquiring Fund Class A Share, computed in the manner and as of the time and date
set forth in paragraph 2.2; and (ii) assume all of the liabilities of the
Acquired Fund. Such transactions shall take place at the closing provided for in
paragraph 3.1 (the "Closing").

          1.2. (a) The assets of the Acquired Fund to be acquired by the
Acquiring Fund shall consist of all of its property, including, without
limitation, all cash, securities and dividends or interest receivables and any
deferred or prepaid expenses shown as an asset on the books of the Acquired Fund
on the closing date provided in paragraph 3.1 (the "Closing Date").


                                       2
<PAGE>
 
          (b) The Acquiring Fund has a list of all of the Acquired Fund's assets
as of the date of execution of this Agreement. The Acquired Fund has a statement
of the Acquiring Fund's investment objectives, policies and restrictions. The
Acquired Fund reserves the right to sell any of its securities but will not,
without the prior approval of the Acquiring Fund, acquire any additional
securities other than securities of the type in which the Acquiring Fund is
permitted to invest. The Acquiring Fund will, within a reasonable time prior to
the Closing Date, furnish the Acquired Fund with a list of the securities, if
any, on the Acquired Fund's list referred to in the first sentence of this
paragraph which do not conform to the Acquiring Fund's investment objectives,
policies and restrictions. In the event that the Acquired Fund holds any
investments which the Acquiring Fund may not hold, the Acquired Fund will
dispose of such securities prior to the Closing Date. In addition, if it is
determined that the portfolios of the Acquired Fund and the Acquiring Fund, when
aggregated, would contain investments exceeding certain percentage limitations
imposed upon the Acquiring Fund with respect to such investments, the Acquired
Fund, if requested by the Acquiring Fund, will dispose of and/or reinvest a
sufficient amount of such in vestments as may be necessary to avoid violating
such limitations as of the Closing Date.

          1.3. As provided in paragraph 3.4, as soon after the Closing Date as
is conveniently practicable, the Acquired Fund will distribute pro rata to the
Acquired Fund's shareholders of record determined as of the close of business on
the Closing Date, the Acquiring Fund Class C Shares it receives pursuant to
paragraph 1.1. Such distribution will be accomplished by establishing Acquiring
Fund shareholder accounts in the names of each Acquired Fund shareholder,
representing the respective pro rata number of full and fractional Acquiring
Fund Class C Shares due each shareholder. All issued and outstanding shares of
the Acquired Fund will simultaneously be canceled on the books of the Acquired
Fund. The Acquiring Fund shall not issue certificates representing the Acquiring
Fund Shares in connection with such exchange.

          1.4. Any transfer taxes payable upon issuance of Acquiring Fund Class
C Shares in a name other than the registered holder of the shares of the
Acquired Fund on the books of the Acquired Fund as of that time shall, as a
condition of such issuance and transfer, be paid by the person to whom such
Acquiring Fund Class C Shares are to be issued and transferred.

          1.5. The Acquired Fund shall, following the Closing Date and the
making of all distributions pursuant to paragraph 1.3, be terminated by a
majority of the Trust's Trustees' executing an instrument pursuant to Section
5.4 of the Declaration and Agreement of Trust of the Trust abolishing the
Acquired Fund. Any reporting responsibility of the Trust with respect to the
Acquired Fund is and shall


                                       3
<PAGE>
 
remain the responsibility of the Trust up to and including the Closing Date and
following the termination of the Acquired Fund.

2.       VALUATION

          2.1. The net value of the Acquired Fund's assets to be acquired by the
Acquiring Fund hereunder shall be the value of such assets, less the Acquired
Fund's liabilities assumed by the Acquiring Fund, computed as of the close of
regular trading on New York Stock Exchange, Inc. (the "NYSE") on the Closing
Date (such time and date being hereinafter called the "Valuation Date"), using
the valuation procedures set forth in the Income Fund's Articles of
Incorporation.

          2.2. The net asset value of one Acquiring Fund Class A Share shall be
the net asset value per share computed as of the close of regular trading on the
NYSE on the Valuation Date, using the valuation procedures set forth in the
Income Fund's Articles of Incorporation.

          2.3. All computations of value shall be made by the Acquiring Fund and
the Acquired Fund in accordance with the regular practice of the Acquiring Fund.

3.       CLOSING AND CLOSING DATE

          3.1. The Closing Date shall be July 12, 1996, or such other date as
the parties may agree to in writing. All acts taking place at the Closing shall
be deemed to take place simultaneously as of the close of business on the
Closing Date unless otherwise provided. The Closing shall be held as of 5:00
p.m. at the offices of [specify location in New Jersey], or at such other time
and/or place as the parties may agree.

          3.2. In the event that on the Valuation Date (a) the NYSE or another
primary trading market for portfolio securities of the Acquiring Fund or the
Acquired Fund shall be closed to trading or trading thereon shall be restricted
or (b) trading or the reporting of trading on the NYSE or elsewhere shall be
disrupted so that accurate appraisal of the value of the net assets of the
Acquiring Fund or the Acquired Fund is impracticable, the Closing Date shall be
postponed until the first business day after the day when trading shall have
been fully resumed and reporting shall have been restored.

          3.3. At the Closing, the Acquired Fund shall direct its custodian to
deliver to the custodian of the Acquiring Fund, for the Acquiring Fund's
account, all of its portfolio securities and other assets held by such custodian
for the Acquired


                                       4
<PAGE>
 
Fund's account, duly endorsed in proper form for transfer as appropriate, in
such condition as to constitute good delivery thereof in accordance with the
custom of the Acquiring Fund's custodian, and shall be accompanied by all
necessary federal and state stock transfer stamps or a check for the appropriate
purchase price thereof.

          3.4. The Acquired Fund shall direct its transfer agent to deliver to
the transfer agent of the Acquiring Fund on the Closing Date a list of the names
and addresses of the Acquired Fund's shareholders and the number of outstanding
shares owned by each such shareholder immediately prior to the Closing. The
Acquiring Fund shall direct its transfer agent to issue and deliver a
confirmation evidencing the Acquiring Fund Class C Shares to be credited to the
Acquired Fund's account on the Closing Date to the transfer agent of the
Acquired Fund, or provide evidence satisfactory to the Acquired Fund that such
Acquiring Fund Class C Shares have been credited to the Acquired Fund's account
on the books of the Acquiring Fund. At the Closing, each party shall deliver to
the other such bills of sale, checks, assignments, share certificates, if any,
receipts, assumption agreements or other documents as such other party or its
counsel may reasonably request.

4.       REPRESENTATIONS AND WARRANTIES
    
          4.1. With respect to the Acquired Fund, the Trust represents and
warrants to the Acquiring Fund as follows:     

          (a) The Trust is a registered investment company classified as a
     management company of the open-end type, and its registration with the
     Securities and Exchange Commission (the "Commission") as an investment
     company under the 1940 Act is in full force and effect.

          (b) The Acquired Fund is a series of the Trust. The Trust is duly
     organized, validly existing and in good standing under the laws of the
     State of Delaware and has the power to own all of its properties and assets
     and to carry out this Agreement.

          (c) The current prospectus and statement of additional information of
     the Trust conform (and any prospectus or statement of additional
     information of the Trust issued prior to the Closing Date will conform) in
     all material respects to the applicable requirements of the Securities Act
     of 1933 Act, as amended (the "1933 Act"), and the 1940 Act and the rules
     and regulations of the Commission thereunder and do not (and will not)
     include 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


                                       5
<PAGE>
 
     circumstances under which they were (and will be) made, not materially
     misleading.

          (d) The Trust is not, and the execution, delivery and performance of
     this Agreement will not result in, a material violation of its Declaration
     and Agreement of Trust or By-laws or of any agreement, instrument, contract
     or other undertaking to which the Trust is a party or by which it is bound.

          (e) The Trust has no material contracts or other commitments which
     will be terminated with liability to the Trust on, prior to or after the
     Closing Date.

          (f) Except as otherwise disclosed in writing to and accepted by the
     Acquiring Fund, no litigation or administrative proceeding or investigation
     before any court or governmental body is presently pending or to its
     knowledge threatened against the Trust or any of the Acquired Fund's
     properties or assets, which if adversely determined would materially and
     adversely affect the financial condition of the Acquired Fund or the
     conduct of the Acquired Fund's business. The Trust knows of no facts which
     might form the basis of the institution of such a proceeding and is not
     party to or subject to the provisions of any order, decree or judgment of
     any court or governmental body which materially and adversely affects the
     business of the Acquired Fund or the ability of the Trust to consummate the
     transactions contemplated herein.

          (g) True and correct copies of the Acquired Fund's (i) Statement of
     Net Assets as at October 31, 1995 and (ii) Statements of Operations and
     Changes in Net Assets for the 12-month period then ended, including the
     accompanying notes, have been furnished to the Acquiring Fund. Such
     Statement of Net Assets and such Statements of Operations and Changes in
     Net Assets (and the accompanying notes) have been audited by Deloitte &
     Touche LLP, independent certified public accountants. Such statements have
     been prepared in accordance with generally accepted accounting principles
     consistently applied, and such statements fairly reflect the financial
     condition and the operations and changes in net assets of the Acquired Fund
     as of such date and for such period, respectively. There are no known
     contingent liabilities of the Acquired Fund as of such date required to be
     reflected or disclosed in such Statement of Net Assets or notes in
     accordance with generally accepted accounting principles that are not so
     reflected or disclosed.


                                       6
<PAGE>
 
          (h) Since October 31, 1995, there has not been any material adverse
     change in the Acquired Fund's financial condition, assets, liabilities or
     business other than changes occurring in the ordinary course of business,
     or any incurrence by the Acquired Fund of indebtedness maturing more than
     one year from the date such indebtedness was incurred, except as otherwise
     disclosed to and accepted by the Acquiring Fund.

          (i) The Trust will file the final federal and other tax returns of the
     Acquired Fund for the period ending on the Closing Date in accordance with
     the Code. At the Closing Date, all federal and other tax returns and
     reports of the Acquired Fund required by law to have been filed prior to
     the Closing Date shall have been filed, and all federal and other taxes
     shown as due on such returns shall have been paid, or provision shall have
     been made for the payment thereof, and to the best of the Trust's
     knowledge, no such return is currently under audit and no assessment has
     been asserted with respect to such returns.

          (j) For the most recent fiscal year of its operation, the Acquired
     Fund has met the requirements of Subchapter M of the Code for qualification
     and treatment as a regulated investment company.

          (k) All issued and outstanding shares of the Acquired Fund are, and at
     the Closing Date will be, duly and validly issued and outstanding, fully
     paid and non-assessable. All of the issued and outstanding shares of the
     Acquired Fund will, at the time of Closing, be held of record by the
     persons and in the amounts set forth in the records of the transfer agent
     as provided in paragraph 3.4. The Acquired Fund does not have outstanding
     any options, warrants or other rights to subscribe for or purchase any
     shares of the Acquired Fund, nor is there outstanding any security
     convertible into any shares of the Acquired Fund.

          (l) At the Closing Date, the Acquired Fund will have good and
     marketable title to its assets to be transferred to the Acquiring Fund
     pursuant to paragraph 1.1 and full right, power and authority to sell,
     assign, transfer and deliver such assets hereunder and, upon delivery and
     payment for such assets, the Acquiring Fund will acquire good and
     marketable title thereto, subject to no restrictions on the full transfer
     thereof, including such restrictions as might arise under the 1933 Act,
     other than as disclosed to the Acquiring Fund prior to the date hereof.


                                       7
<PAGE>
 
          (m) The execution, delivery and performance of this Agreement has been
     duly authorized by all necessary action on the part of Trust's Trustees,
     and subject to the due approval of the Acquired Fund's shareholders, this
     Agreement, assuming due authorization, execution and delivery by the
     Acquiring Fund, constitutes a valid and binding obligation of the Trust on
     behalf of the Acquired Fund, enforceable in accordance with its terms,
     subject as to enforcement to bankruptcy, insolvency, reorganization,
     moratorium and other laws relating to or affecting creditors' rights and to
     general equity principles. The Trust's Board of Trustees has called a
     meeting of the Trust's shareholders at which the shareholders of the
     Acquired Fund are to consider and act upon this Agreement.

          (n) The information furnished and to be furnished by the Trust on
     behalf of the Acquired Fund for use in registration statements, proxy
     materials and other documents which may be necessary in connection with the
     transactions contemplated hereby shall be accurate and complete in all
     material respects and shall comply in all material respects with federal
     securities and other laws and regulations thereunder applicable thereto.

          (o) The combined prospectus and proxy statement (the "N-14 prospectus
     and proxy statement") and the related statement of additional information
     included in the Registration Statement on Form N-14 of the Acquiring Fund
     (the "N-14 Registration Statement") did not on the effective date of the
     N-14 Registration Statement contain any untrue statement of a material fact
     relating to the Acquired Fund or the meeting of the Trust shareholders
     referred to therein or omit to state a material fact required to be stated
     therein or necessary to make the statements therein relating to the
     Acquired Fund or such special meeting, in light of the circumstances under
     which such statements were made, not materially misleading.

          (p) The Acquiring Fund Class C Shares to be issued to the Acquired
     Fund hereunder are not being acquired for the purpose of making any
     distribution thereof other than in accordance with the terms of this
     Agreement.

          4.2. With respect to the Acquiring Fund, the Income Fund represents
and warrants to the Acquired Fund as follows:

          (a) The Income Fund is a registered investment company classified as a
     management company of the open-end type, and its registration with the
     Commission as an investment company under the 1940 Act is in full force and
     effect.


                                       8
<PAGE>
 
          (b) The Acquiring Fund is a series of the Income Fund. The Income Fund
     is a corporation duly organized, validly existing and in good standing
     under the laws of the State of Maryland and has the power to own all of its
     properties and assets and to carry out this Agreement.

          (c) The current prospectus and statement of additional information of
     the Income Fund conform (and any prospectus or statement of additional
     information of the Income Fund issued prior to the Closing Date will
     conform) in all material respects to the applicable requirements of the
     1933 Act and the 1940 Act and the rules and regulations of the Commission
     thereunder and do not (and will not) include 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 (or will be) made, not materially
     misleading.

          (d) The Income Fund is not, and the execution, delivery and
     performance of this Agreement will not result in, a material violation of
     its Articles of Incorporation or By-laws or of any agreement, instrument,
     contract or other undertaking to which the Income Fund is a party or by
     which it is bound.

          (e) The Income Fund has no material contracts or other commitments
     which will be terminated with liability to the Income Fund on, prior to or
     after the Closing Date.

          (f) Except as otherwise disclosed in writing to and accepted by the
     Acquired Fund, no litigation or administrative proceeding or investigation
     before any court or governmental body is presently pending or to its
     knowledge threatened against the Income Fund or any of the Acquiring Fund's
     properties or assets, which, if adversely determined, would materially and
     adversely affect its financial condition or the conduct of its business.
     The Income Fund knows of no facts which might form the basis of the
     institution of such a proceeding and is not party to or subject to the
     provisions of any order, decree or judgment of any court or governmental
     body which materially and adversely affects its business or its ability to
     consummate the transactions contemplated herein.

          (g) True and correct copies of the Acquiring Fund's (i) Statement of
     Net Assets as at September 30, 1995, and (ii) Statements of Operation and
     Changes in Net Assets for the 12-month period then ended, including the
     accompanying notes, have been furnished to the Trust. Such Statement of Net


                                       9
<PAGE>
 
     Assets and such Statements of Operations and Changes in Net Assets (and the
     accompanying notes) have been audited by Deloitte & Touche LLP, independent
     certified public accountants. Such statements have been prepared in
     accordance with generally accepted accounting principles consistently
     applied, and such statements fairly reflect the financial condition and the
     operations and changes in net assets of the Acquiring Fund as of such date
     and for such period, respectively. There are no known contingent
     liabilities of the Acquiring Fund as of such date required to be reflected
     or disclosed in such Statements of Net Assets or notes in accordance with
     generally accepted accounting principles that are not so reflected or
     disclosed.

          (h) Since September 30, 1995, there has not been any material adverse
     change in the Acquiring Fund's financial condition, assets, liabilities or
     business other than changes occurring in the ordinary course of business,
     or any incurrence by the Acquiring Fund of indebtedness maturing more than
     one year from the date such indebtedness was incurred, except as otherwise
     disclosed to and accepted by the Acquired Fund.

          (i) At the Closing Date, all federal and other tax returns and reports
     of the Income Fund required by law to have been filed prior to the Closing
     Date shall have been filed, and all federal and other taxes shown as due on
     such returns and reports shall have been paid, or provision shall have been
     made for the payment thereof, and to the best of the Acquiring Fund's
     knowledge, no such return is currently under audit and no assessment has
     been asserted with respect to such returns.

          (j) For the most recent fiscal year of its operation, the Acquiring
     Fund has met the requirements of Subchapter M of the Code for qualification
     and treatment as a regulated investment company and the Acquiring Fund
     intends to do so in the future.

          (k) All issued and outstanding shares of the Acquiring Fund are, and
     at the Closing Date will be, duly and validly issued and outstanding, fully
     paid and non-assessable, with no personal liability attaching to the
     ownership thereof. The Acquiring Fund does not have outstanding any
     options, warrants or other rights to subscribe for or purchase any shares
     of the Acquiring Fund, nor is there outstanding any security convertible
     into shares of the Acquiring Fund.

          (l) At the Closing Date, the Acquiring Fund will have good and
     marketable title to the Acquiring Fund's assets.


                                       10
<PAGE>
 
          (m) The execution, delivery and performance of this Agreement has been
     duly authorized by all necessary action on the part of the Income Fund's
     Board of Directors, and assuming due authorization, execution and delivery
     by the Acquired Fund, this Agreement constitutes a valid and binding
     obligation of the Income Fund on behalf of the Acquiring Fund, enforceable
     in accordance with its terms, subject as to enforcement to bankruptcy,
     insolvency, reorganization, moratorium and other laws relating to or
     affecting creditors' rights and to general equity principles.

          (n) The N-14 Registration Statement (except insofar as it relates to
     the Acquired Fund or the special meeting of its shareholders referred to
     therein) did not on the effective date of the N-14 Registration Statement
     contain any untrue statement of a material fact or omit to state a material
     fact required to be stated therein or necessary to make the statements
     therein, in light of the circumstances under which such statements were
     made, not materially misleading.

          (o) The Acquiring Fund Class C Shares to be issued and delivered to
     the Acquired Fund pursuant to the terms of this Agreement have been duly
     authorized by the Board of Directors of the Income Fund, and, when issued
     and delivered at the Closing in accordance with this Agreement, will be
     duly and validly issued Acquiring Fund Class C Shares and will be fully
     paid and non-assessable with no personal liability attaching to the
     ownership thereof.

   
          (p) The Board of Directors of the Income Fund has duly adopted (a)
     articles of amendment to the Articles of Incorporation of the Income Fund
     (i) authorizing the Board of Directors to create multiple classes within
     series (which amendment has been duly approved by the shareholders of the
     Income Fund) and (ii) designating the initial class of shares, both
     outstanding and unissued shares, as Class A Shares and (b) articles
     supplementary creating the Acquiring Fund Class C Shares. Such articles
     have been duly filed with the State Department of Assessments and Taxation
     of Maryland and copies of same have been furnished to the Trust.
    

5.       COVENANTS

          5.1. The Acquiring Fund and the Acquired Fund each will operate its
business in the ordinary course between the date hereof and the Closing Date. It
is understood that such ordinary course of business will include the declaration
and payment of customary dividends and distributions and any other dividends and
distributions deemed advisable.


                                       11
<PAGE>
 
          5.2. At or after the Closing, the Trust will deliver or otherwise make
available to the Income Fund a statement of the Acquired Fund's assets and
liabilities, together with a list of the Acquired Fund's portfolio securities
showing the tax costs of such securities to it and the holding periods of such
securities, as of the Closing Date.

          5.3. The Acquired Fund will assist the Acquiring Fund in obtaining
such information as the Acquiring Fund reasonably requests concerning the
beneficial ownership of the Acquired Fund's shares.

          5.4. Subject to the provisions of this Agreement, the Acquired Fund
and the Acquiring Fund each will take, or cause to be taken, all action, and do
or cause to be done all things, reasonably necessary, proper or advisable to
consummate and make effective the transactions contemplated by this Agreement.

          5.5. Prior to the Closing Date, the Board of Trustees of the Trust
will declare such dividends and distributions, payable no later than [90] days
after the Closing Date, to shareholders of record of the Acquired Fund as of the
Closing Date, which, together with all such previous dividends and
distributions, shall have the effect of distributing to the shareholders of the
Acquired Fund all of the investment company taxable income and exempt-interest
income of the Acquired Fund for all taxable years ending on or prior to the
Closing Date. The dividends and distributions declared by the Acquired Fund
shall also include all of the Acquired Fund's net capital gain realized in all
taxable years ending on or prior to the Closing Date (after reduction for any
capital loss carry forward). Such dividends and distributions declared prior to
the Closing Date shall be paid by the Acquiring Fund no later than [90] days
after the Closing Date.

          5.6. As promptly as practicable, but in any case within sixty days
after the Closing Date, the Acquired Fund shall furnish the Acquiring Fund, in
such form as is reasonably satisfactory to the Acquiring Fund, a statement of
the earnings and profits of the Acquired Fund for federal income tax purposes
which will be carried over to the Acquiring Fund as a result of Section 381 of
the Code.

          5.7. The Acquired Fund will provide the Acquiring Fund with any
additional information reasonably necessary for any revision of the N-14
Prospectus and Proxy Statement referred to in paragraph 4.1(o), all to be
included in any amendment to the N-14 Registration Statement, in compliance with
the 1933 Act, the


                                       12
<PAGE>
 
Securities Exchange Act of 1934 (the "1934 Act") and the 1940 Act in connection
with the meeting of the Acquired Fund's shareholders to consider approval of
this Agreement and the Reorganization.

6.       CONDITIONS PRECEDENT TO OBLIGATIONS OF THE TRUST

                  The  obligations of the Trust, on behalf of the Acquired Fund,
to  consummate  the  transactions  provided for herein shall be subject,  at its
election,  to the performance by the Income Fund in all material respects of all
of the obligations to be performed by it hereunder on or before the Closing Date
and, in addition thereto, the following further conditions:

                  6.1. All  representations  and  warranties  of the Income Fund
contained in this Agreement  shall be true and correct in all material  respects
as of the date  hereof and,  except as they may be affected by the  transactions
contemplated by this  Agreement,  as of the Closing Date with the same force and
effect as if made on and as of the Closing Date.

                  6.2. The Acquiring  Fund shall have  delivered to the Acquired
Fund a  certificate  executed in its name by its  Chairman,  President or a Vice
President  and its  Treasurer  or an  Assistant  Treasurer,  in form  reasonably
satisfactory  to the  Acquired  Fund and dated as of the  Closing  Date,  to the
effect that the  representations  and warranties of the Income Fund made in this
Agreement are true and correct at and as of the Closing Date, except as they may
be affected by the transactions contemplated by this Agreement.

7.       CONDITIONS PRECEDENT TO OBLIGATIONS OF THE ACQUIRING
         FUND

                  The obligations of the Income Fund, on behalf of the Acquiring
Fund, to consummate the  transactions  provided for herein shall be subject,  at
its election,  to the  performance by the Trust in all material  respects of all
the  obligations  to be  performed by it hereunder on or before the Closing Date
and, in addition thereto, the following further conditions:

                  7.1. All representations and warranties of the Trust contained
in this Agreement  shall be true and correct in all material  respects as of the
date hereof and, except as they may be affected by the transactions contemplated
by this  Agreement,  as of the Closing Date with the same force and effect as if
made on and as of the Closing Date.


                                       13
<PAGE>
 
          7.2. The Trust shall have delivered to the Acquiring Fund on the
Closing Date a certificate executed in its name by its Chairman, President or a
Vice President and its Treasurer or an Assistant Treasurer, in form and
substance satisfactory to the Acquiring Fund and dated as of the Closing Date,
to the effect that the representations and warranties of the Trust made in this
Agreement are true and correct at and as of the Closing Date, except as they may
be affected by the trans actions contemplated by this Agreement.

8.       FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF THE
         TRUST AND THE INCOME FUND

          If any of the conditions set forth below do not exist on the Closing
Date with respect to the Acquiring Fund or the Acquired Fund, either party to
this Agreement shall, at its option, not be required to consummate the
transactions contemplated by this Agreement:

          8.1. This Agreement and the transactions contemplated herein shall
have been approved by the requisite vote of the holders of the outstanding
shares of the Acquired Fund in accordance with the provisions of the Trust's
Declaration and Agreement of Trust and By-laws. Notwithstanding anything herein
to the contrary, neither the Acquiring Fund nor the Acquired Fund may waive the
conditions set forth in this paragraph 8.1.

          8.2. On the Closing Date, no action, suit or other proceeding shall be
pending before any court or governmental agency in which it is sought to
restrain or prohibit, or obtain damages or other relief in connection with, this
Agreement or the transactions contemplated herein.

          8.3. All consents of other parties and all other consents, orders,
rulings and permits of federal, state and local regulatory authorities
(including those of the Commission, the Internal Revenue Service and state Blue
Sky and securities authorities) deemed necessary by the Acquiring Fund or the
Acquired Fund to permit consummation, in all material respects, of the
transactions contemplated hereby shall have been obtained, except where failure
to obtain any such consent, order, ruling or permit would not involve a risk of
a material adverse effect on the assets or properties of the Acquiring Fund or
the Acquired Fund.

          8.4. The N-14 Registration Statement shall have become effective under
the 1933 Act and no stop orders suspending the effectiveness thereof shall have
been issued and, to the best knowledge of the parties hereto, no investigation
or


                                       14
<PAGE>
 
proceeding for that purpose shall have been instituted or be pending, threatened
or contemplated under the 1933 Act.

          8.5. The parties shall have received a favorable opinion of Debevoise
& Plimpton, addressed to the Income Fund and the Trust and satisfactory to the
Secretary of each such party, substantially to the effect that for federal
income tax purposes:

          (a) the acquisition by the Acquiring Fund of all of the assets of the
     Acquired Fund solely in exchange for the issuance of Acquiring Fund Class C
     Shares to the Acquired Fund and the assumption of all of the Acquired Fund
     liabilities by the Acquiring Fund, followed by the distribution by the
     Acquired Fund, in complete liquidation, of the Acquiring Fund Class C
     Shares to the Acquired Fund shareholders in exchange for their Acquired
     Fund shares, will be treated as a "reorganization" within the meaning of
     Section 368(a) of the Code, and the Acquiring Fund and the Acquired Fund
     will each be a "party to a reorganization" within the meaning of Section
     368(b) of the Code;

          (b) no gain or loss will be recognized by the Acquiring Fund upon the
     receipt of the assets of the Acquired Fund in exchange for the Acquiring
     Fund Shares and the assumption by the Acquiring Fund of liabilities of the
     Acquired Fund;

          (c) no gain or loss will be recognized by the Acquired Fund upon the
     transfer of the Acquired Fund's assets to the Acquiring Fund in exchange
     for the Acquiring Fund Shares and the assumption by the Acquiring Fund of
     liabilities of the Acquired Fund or upon the distribution of the Acquiring
     Fund Shares to the Acquired Fund's shareholders;

          (d) no gain or loss will be recognized by shareholders of the Acquired
     Fund upon the exchange of their Acquired Fund shares for the Acquiring Fund
     Shares;

          (e) the aggregate tax basis for the Acquiring Fund Shares received by
     each of the Acquired Fund's shareholders pursuant to the Reorganization
     will be the same as the aggregate tax basis of the Acquired Fund shares
     held by such shareholder immediately prior to the Reorganization, and the
     holding period of the Acquiring Fund Shares to be received by each Acquired
     Fund shareholder will include the period during which the Acquired Fund
     shares exchanged therefor were held by such shareholder (provided that the
     Acquired Fund shares were held as capital assets on the date of the
     Reorganization); and


                                       15
<PAGE>
 
          (f) the tax basis of the Acquired Fund's assets acquired by the
     Acquiring Fund will be the same as the tax basis of such assets to the
     Acquired Fund immediately prior to the Reorganization, and the holding
     period of the assets of the Acquired Fund in the hands of the Acquiring
     Fund will include the period during which those assets were held by the
     Acquired Fund.

          Notwithstanding anything herein to the contrary, neither the Income
Fund nor the Trust may waive the conditions set forth in this paragraph 8.5.

          8.6. The Acquiring Fund shall have duly adopted a Rule 12b-1 Plan for
the Acquiring Fund Class C Shares acceptable to the Trust.

9.       BROKERAGE FEES AND EXPENSES

          9.1. The Income Fund represents and warrants to the Acquired Fund, and
the Trust represents and warrants to the Acquiring Fund, that there are no brok
ers or finders entitled to receive any payments in connection with the
transactions provided for herein.

          9.2. Except as may be otherwise provided herein, the Acquiring Fund
and the Acquired Fund each shall pay, or provide for the payment of, the
expenses incurred by it in connection with entering into and carrying out the
provisions of this Agreement.

10.      ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES

          10.1. The parties hereto agree that no party has made any
representation, warranty or covenant not set forth herein and that this
Agreement constitutes the entire agreement between the parties.

          10.2. None of the representations and warranties included or provided
for herein shall survive the consummation of the transactions contemplated
hereby.

11.      TERMINATION

          11.1. This Agreement may be terminated at any time prior to the
Closing Date: (1) by the mutual agreement of the Trust and the Income Fund; (2)
by the Trust in the event that the Income Fund shall, or by the Income Fund in
the event that the Trust shall, materially breach any representation or warranty
contained herein or any agreement contained herein and to be performed at or
prior to the Closing


                                       16
<PAGE>
 
Date; or (3) by either party if a condition herein expressed to be precedent to
the obligations of the terminating party has not been met and it reasonably
appears that it will not or cannot be met.

          11.2. In the event of any such termination, there shall be no
liability for damages on the part of either the Trust, the Income Fund, the
Acquired Fund or the Acquiring Fund or their respective Trustees, Directors or
officers to the other party, but the Acquiring Fund and the Acquired Fund shall
each bear, or provide for the payment of, the expenses incurred by it incidental
to the preparation and carrying out of this Agreement as provided in paragraph
9.2.

12.      AMENDMENTS; WAIVERS

          12.1. This Agreement may be amended, modified or supplemented in such
manner as may be mutually agreed upon in writing by the authorized officers of
the Trust and the Income Fund; provided, however, that following the approval of
the Acquired Fund shareholders referred to in paragraph 8.1, no such amendment
may have the effect of changing the provisions for determining the number of the
Acquiring Fund Class C Shares to be issued to the Acquired Fund's shareholders
under this Agreement to the detriment of such shareholders without their further
approval.

          12.2. At or at any time prior to the Closing either party hereto may
by written instrument signed by it (i) waive any inaccuracies in the
representations and warranties made to it contained herein and (ii) waive
compliance with any of the covenants or conditions made for its benefit
contained herein.

13.      NOTICES

   
          Any notice, report, statement or demand required or permitted by any
provisions of this Agreement shall be in writing and shall be given by personal
delivery addressed to Lord Abbett Securities Trust on behalf of its series Lord
Abbett New York Tax-Free Income Trust, 767 Fifth Avenue, New York, New York,
10153, Attention: Office of the Secretary; or to Lord Abbett Tax-Free Income
Fund on behalf of its New York Series, 767 Fifth Avenue, New York, New York,
10153, Attention: Office of the Secretary.
    


                                       17
<PAGE>
 
14.      HEADINGS; COUNTERPARTS; GOVERNING LAW; ASSIGNMENT;
         LIMITATION OF LIABILITY

          14.1. The article and paragraph headings contained in this Agreement
are for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

          14.2. This Agreement may be executed in any number of counterparts,
each of which shall be deemed an original.

          14.3. This Agreement shall be governed by and construed in accordance
with the laws of the State of New York.

          14.4. (a) This Agreement shall bind and inure to the benefit of the
parties hereto and their respective successors and assigns, but no assignment or
transfer hereof or of any rights or obligations hereunder shall be made by any
party without the written consent of the other party. Nothing herein expressed
or implied is intended or shall be construed to confer upon or give any person,
firm, corporation or other entity, other than the parties hereto and their
respective successors and assigns, any rights or remedies under or by reason of
this Agreement.


                                       18
<PAGE>
 
          (b) The Acquiring Fund is hereby expressly put on notice of the
limitation of liability as set forth in Article IV of the Declaration and
Agreement of Trust of the Trust and agrees that the obligations assumed by the
Trust pursuant to this Agreement shall be limited in any case to the Acquired
Fund and its assets and the Income Fund shall not seek satisfaction of any such
obligation from the shareholders of the Trust, the trustees, officers, employees
or agents of the Trust or any of them or from any other assets of the Trust.

          IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be executed by its Chairman of the Board, President or Vice
President and attested by its Secretary or Assistant Secretary.


Attest:                               LORD ABBETT SECURITIES TRUST
                                      on behalf of Lord Abbett New York Tax-Free
                                      Income Trust


                                      By:   _______________________________
Name:  _____________                           Name:
Title:  Secretary                              Title:




Attest:                               LORD ABBETT TAX-FREE INCOME FUND,
                                      INC. on behalf of the New York Series




                                      By:   _______________________________
Name:  _____________                           Name:
Title:  Secretary                              Title:


                                       19
<PAGE>
 
                                                                      
                                                                      EXHIBIT B
                                                                      ---------


           COMPARISON OF CERTAIN INVESTMENT POLICIES AND RESTRICTIONS

          Comparison of fundamental and certain non-fundamental investment
policies and restrictions of Lord Abbett New York Tax-Free Income Trust (the
"Acquired Fund"), a series of Lord Abbett Securities Trust, and Lord Abbett
Tax-Free Income Fund, Inc. (the "Acquiring Fund") and of the Acquiring Fund as
proposed to be revised.
    

<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       POLICY/RESTRICTION OF THE               POLICY/RESTRICTION OF THE            PROPOSED POLICY/RESTRICTION OF
             ACQUIRED FUND                          ACQUIRING FUND                        THE ACQUIRING FUND
- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>

SHORT SALES/MARGIN.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
Subject to certain exceptions, the      The Fund may not sell short or buy      The Fund may not make short sales
Fund may not sell short or buy on       on margin, although it may obtain       of securities or maintain a short
margin.                                 short-term credit necessary for the     position except to the extent
                                        clearance of the purchase of securi     permitted by applicable law.
                                        ties.
                                                                                Fundamental
                                                                                The Fund may purchase securities on
                                                                                margin to the extent permitted by
                                                                                applicable law.
- ------------------------------------------------------------------------------------------------------------------------
BORROWING.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not borrow money,          Subject to certain exceptions, the      The Fund may not borrow money,
unless such borrowing does not ex       Fund may not borrow money except        except that (i) the Fund may borrow
ceed the asset coverage requirements    as a temporary measure for extra        from banks (as defined in the 1940
of Section 18(f) of the Act and unless  ordinary or emergency purposes and      Act) in amounts up to 33 1/3% of its
such borrowing on behalf of the Fund    then not in excess of 5% of gross       total assets (including the amount
shall be a liability of the Fund, as    assets (at cost or market value,        borrowed), (ii) the Fund may borrow
the case may be.                        whichever is lower) at the time of      up to an additional 5% of its total
                                        borrowing.                              assets for temporary purposes, and
                                                                                (iii) the Fund may obtain such short-
                                                                                term credit as may be necessary for
                                                                                the clearance of purchases and sales
                                                                                of portfolio securities.

                                                                                NON-FUNDAMENTAL
                                                                                The Fund may not borrow in excess
                                                                                of 5% of its gross assets taken at cost
                                                                                or market value, whichever is lower
                                                                                at the time of borrowing, and then
                                                                                only as a temporary measure for
                                                                                extraordinary or emergency
                                                                                purposes.
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>     
<PAGE>
 
<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       POLICY/RESTRICTION OF THE               POLICY/RESTRICTION OF THE            PROPOSED POLICY/RESTRICTION OF
             ACQUIRED FUND                          ACQUIRING FUND                        THE ACQUIRING FUND

- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>
UNDERWRITING.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not engage in the          The Fund may not engage in the          The Fund may not engage in the
underwriting of securities, except      underwriting of securities unless it is underwriting of securities, except,
pursuant to a merger or acquisition     deemed to be an underwriter in          pursuant to a merger or acquisition
or to the extent that, in connection    selling a portfolio security requiring  or to the extent that, in connection
with the disposition of its portfolio   registration  under federal securities  with the disposition of its portfolio
securities, it may be deemed to be an   laws.                                   securities, it may be deemed to be an
underwriter under federal securities                                            underwriter under federal securities
laws.                                                                           laws.
- ------------------------------------------------------------------------------------------------------------------------
LENDING.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not lend money or          The Fund may not make loans,            The Fund may not make loans to
securities to any person, except that   except for the purchase of debt         other persons, except that the acqui
it may lend money for the purchase      securities in which it may invest       sition of bonds, debentures or other
debt securities in which it may invest  consistent with its investment          corporate debt securities and invest
consistent with its investment          objective and policies.                 ment in government obligations,
objectives and policies.                                                        commercial paper, pass-through in
                                                                                struments, certificates of deposit,
                                                                                bankers acceptances, repurchase
                                                                                agreements or any similar
                                                                                instruments shall not be subject to
                                                                                this limitation, and except further
                                                                                that the Fund may lend its portfolio
                                                                                securities, provided that the lending
                                                                                of portfolio securities may be made
                                                                                only in accordance with applicable
                                                                                law.
- ------------------------------------------------------------------------------------------------------------------------
    
</TABLE>


                                       2
<PAGE>
 
<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       POLICY/RESTRICTION OF THE               POLICY/RESTRICTION OF THE            PROPOSED POLICY/RESTRICTION OF
             ACQUIRED FUND                          ACQUIRING FUND                        THE ACQUIRING FUND
             -------------                          --------------                        ------------------
- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>
REAL ESTATE/COMMODITIES.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not deal in real estate,   The Fund may not deal in oil, gas or    The Fund may not buy or sell real
commodities or commodity                mineral leases, real estate, com-       estate (except that the Fund may in
contracts, excluding the securities of  modities or commodity contracts         vest in securities directly or
companies which deal in or hold real    (except that the Fund may invest in     indirectly secured by real estate or
estate or commodities.                  securities issued by companies which    interests therein or issued by
                                        invest in real estate or interests      companies which invest in real estate
                                        therein).                               or interests therein), or commodities
                                                                                or commodity contracts (except to
                                                                                the extent the Fund may do so in
                                                                                accordance with applicable law and
                                                                                without registering as a commodity
                                                                                pool operator under the Commodity
                                                                                Exchange Act as, for example, with
                                                                                futures contracts).
                                                                                Non-fundamental
                                                                                The Fund may not invest in real
                                                                                estate limited partnership interests or
                                                                                interests in oil, gas or other mineral
                                                                                leases, or exploration or other
                                                                                development programs, except that
                                                                                the Fund may invest in securities
                                                                                issued by companies that engage in
                                                                                oil, gas or other mineral exploration
                                                                                or development activities.
- ------------------------------------------------------------------------------------------------------------------------
DIVERSIFICATION.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
                                        The Fund may not buy securities of      None stated (but the Fund will be
None                                    one issuer representing more than (i)   required to meet the diversification
                                        5% of its gross assets of market value  rules under Subchapter M of the
                                        on time of purchase except securities   Internal Revenue Code).
                                        issued or guaranteed by the U.S.
                                        Government, its agencies or
                                        instrumentalities or (ii) 10% of the
                                        voting securities of such issuer.
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>     


                                        3
<PAGE>
 
<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       POLICY/RESTRICTION OF THE               POLICY/RESTRICTION OF THE            PROPOSED POLICY/RESTRICTION OF
             ACQUIRED FUND                          ACQUIRING FUND                        THE ACQUIRING FUND
             -------------                          --------------                        ------------------
- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>
INVESTMENT IN A SINGLE INDUSTRY.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not concentrate its        The Fund may not invest more than       The Fund may not invest more than
investments in any single industry,     25% of its assets in any one industry,  25% of its assets, taken at market
excluding U.S. Government               except with regard to investments in    value, in the securities of issuers in
securities, except that the Fund may    tax-exempt securities.                  any particular industry (excluding (i)
invest more than 25% of its gross                                               tax-exempt securities, such as those
assets taken at market value in tax-                                            financing facilities in the same
exempt securities.                                                              industry or issued by non-
                                                                                governmental users and (ii) the
                                                                                securities of the U.S. Government,
                                                                                its agencies or instrumentalities).
- ------------------------------------------------------------------------------------------------------------------------
RESTRICTED/ILLIQUID
SECURITIES.
NON-FUNDAMENTAL                         FUNDAMENTAL                             NON-FUNDAMENTAL
The Fund may not invest more than       The Fund may not invest more than       The Fund may not invest, knowingly,
15% of its total assets in restricted or10% of its net assets in illiquid       more than 15% of its net assets (at
illiquid securities, except, subject to securities, except, subject to state    the time of investment) in illiquid
state law, for securities qualifying forlaw, for securities qualifying for      securities, except for securities
resale under Rule 144A of the           resale under Rule 144A of the           qualifying for resale under Rule
Securities Act of 1933, deemed to be    Securities Act of 1933, deemed to be    144A of the Securities Act of 1933,
liquid by the Board of Trustees.        liquid by the Board of Directors.       deemed to be liquid by the Board of
                                                                                Directors.
- ------------------------------------------------------------------------------------------------------------------------
MORTGAGING AND
PLEDGING OF ASSETS.
FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
The Fund may not, with certain          The Fund may not, with certain          The Fund may not pledge its assets
exceptions, pledge, mortgage or         exceptions, pledge, mortgage or         (other than to secure borrowings, or
hypothecate its assets.                 hypothecate its assets.                 to the extent permitted by the Fund's
                                                                                investment policies, as permitted by
                                                                                applicable law).
- ------------------------------------------------------------------------------------------------------------------------
INVESTMENTS IN
SECURITIES OF OTHER
INVESTMENT COMPANIES.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
The Fund may, with certain              The Fund may not invest in the          The Fund may not invest in the
exceptions, not invest in the secu      securities of other investment          securities of other investment
rities of other investment companies.   companies, except pursuant to a         companies, except as permitted by
                                        merger, acquisition or consolidation.   applicable law.
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>     


                                       4
<PAGE>
 
<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       POLICY/RESTRICTION OF THE               POLICY/RESTRICTION OF THE            PROPOSED POLICY/RESTRICTION OF
             ACQUIRED FUND                          ACQUIRING FUND                        THE ACQUIRING FUND
             -------------                          --------------                        ------------------
- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>
OPTIONS.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
The Fund may not buy or sell puts or    The Fund may not buy or sell put,       The Fund may not write, purchase or
calls, straddle or spread options       call, straddle or spread options,       sell puts, calls, straddles, spreads or
although the Fund may buy, hold or      except that the Fund may buy, hold      combinations thereof, except to the
sell options and financial futures,     or sell options and financial futures.  extent permitted in the Fund's
and buy or sell oil, gas and mineral                                            prospectus and statement of
leases.                                                                         additional information, as they may
                                                                                be amended from time to time.
- ------------------------------------------------------------------------------------------------------------------------
INVESTMENTS IN
SECURITIES OF ISSUERS IN
OPERATION FOR LESS THAN
THREE YEARS.                                                                    NON-FUNDAMENTAL
                                        None.                                   The Fund may not invest in securities
None.                                                                           of issuers which, with their
                                                                                predecessors, have a record of less
                                                                                than three years continuous
                                                                                operations, except if more than 5%
                                                                                of the Fund's total assets would be
                                                                                invested in such securities (this
                                                                                restriction shall not apply to
                                                                                mortgage-backed securities, asset-
                                                                                backed securities or obligations
                                                                                issued or guaranteed by the U.S.
                                                                                Government, its agencies or
                                                                                instrumentalities).
- ------------------------------------------------------------------------------------------------------------------------
OWNERSHIP OF PORTFOLIO
SECURITIES BY OFFICERS
AND DIRECTORS.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
The Fund may not hold securities of     The Fund may not hold securities of     The Fund may not hold securities of
any issuer if more than1/2of 1% of      any issuer if more than1/2of 1% of      any issuer if more than1/2of 1% of
the securities of such issuer are       the securities of such issuer are       the securities of such issuer are
owned beneficially by one or more       owned beneficially by one or more       owned beneficially by one or more
officer or Trustee or by one or more    officer or director or by one or more   officers or Directors or by one or
partners of the underwriter of          partners of the investment adviser if   more members or partners of the
investment advisor if together they     together they own more than 5% of       underwriter or investment advisor if
own more than 5% of the securities      the securities of such issuer.          together they own more than 5% of
of such issuer.                                                                 the securities of such issuer.
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>     




                                       5
<PAGE>
 
<TABLE>    
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
       Policy/Restriction of the               Policy/Restriction of the            Proposed Policy/Restriction of
             Acquired Fund                          Acquiring Fund                        the Acquiring Fund
             -------------                          --------------                        ------------------
- ------------------------------------------------------------------------------------------------------------------------
<C>                                     <C>                                     <C>
TRANSACTIONS WITH CERTAIN PERSONS.
FUNDAMENTAL                             FUNDAMENTAL                             NON-FUNDAMENTAL
The Fund, subject to certain            The Fund, subject to certain excep      The Fund may not buy from or sell to
exceptions, may not engage in           tions, may not engage in securities     any of its officers, directors,
securities transactions with its        transactions with its officers,         employees, or its investment adviser
officers or directors, investment       directors and employees, investment     or any of its officers, directors,
adviser or with its partners and        adviser or  with its partners and       partners or employees, any securities
employees other than capital stock of   employees other than capital stock of   other than shares of the Fund's
the Fund.                               the Fund.                               common stock.
- ------------------------------------------------------------------------------------------------------------------------
SENIOR SECURITIES.

FUNDAMENTAL                             FUNDAMENTAL                             FUNDAMENTAL
                                                                                The Fund may not issue senior
The Fund may not issue senior           The Fund may not issue senior           securities to the extent such issuance
securities.                             securities.                             would violate applicable law.
- ------------------------------------------------------------------------------------------------------------------------
PURCHASE OF WARRANTS.
                                        NON-FUNDAMENTAL                         NON-FUNDAMENTAL
None.                                   Pursuant to state regulations, the      The Fund may not invest in warrants
                                        Fund will not invest more than 5% of    if, at the time of the acquisition, its
                                        its net assets in warrants or more      investment in warrants, valued at the
                                        than 2% in warrants not listed on the   lower of cost or market, would
                                        New York or American Stock              exceed 5% of the Fund's total assets
                                        Exchanges, except when they form a      (included within such limitation, but
                                        unit with other securities.  As a       not to exceed 2% of the Fund's total
                                        matter of operating policy, the Fund    assets, are warrants which are not
                                        will not invest more than 5% of its     listed on the New York or American
                                        net assets in rights.                   Stock Exchange or a major foreign
                                                                                exchange).


- ------------------------------------------------------------------------------------------------------------------------
</TABLE>     

                                       6
<PAGE>
 
   
            STATEMENT OF ADDITIONAL INFORMATION DATED APRIL 24, 1996
    

                          ACQUISITION OF THE ASSETS OF
             LORD ABBETT NEW YORK TAX-FREE INCOME TRUST, A SERIES OF
                          LORD ABBETT SECURITIES TRUST
                  The General Motors Building, 767 Fifth Avenue
                               New York, NY 10153
        

                    by and in exchange for Class C Shares of
                          NEW YORK SERIES, A SERIES OF
                     LORD ABBETT TAX-FREE INCOME FUND, INC.
                  The General Motors Building, 767 Fifth Avenue
                               New York, NY 10153
    

     This Statement of Additional Information, relating specifically to the
proposed transfer of the assets of Lord Abbett New York Tax-Free Income Trust
(the "Acquired Fund"), a series of Lord Abbett Securities Trust (the "Trust"),
to the New York Series (the "Acquiring Fund"), a series of Lord Abbett Tax-Free
Income Fund, Inc. (the "Income Fund") in exchange for Class C shares of the
Acquiring Fund and the assumption by the Acquiring Fund of the liabilities of
the Acquired Fund, consists of this page and the following described documents,
each of which accompanies this Statement of Additional Information and is
incorporated herein by reference:

     1. Statement of Additional Information of the Acquiring Fund dated February
1, 1996.
    

     2. Statement of Additional Information of the Trust dated March 1, 1996,
insofar as it relates to the Acquired Fund.

   
     3. The financial statements of the Acquiring Fund for the fiscal year ended
September 30, 1995, and the report thereon of Deloitte & Touche LLP, independent
public accountants, contained in the 1995 Annual Report of the Acquiring Fund.
    

     4. The financial statements of the Acquired Fund for the fiscal year ended
October 31, 1995, and the report thereon of Deloitte & Touche LLP, independent
public accountants, contained in the 1995 Annual Report of the Acquired Fund.

   
     The financial statements referred to above are incorporated herein in
reliance upon the authority of Deloitte & Touche LLP as experts in auditing and
accounting. This Statement of Additional Information is not a prospectus. A
Proxy Statement and Prospectus dated the date hereof relating to the
above-referenced matter may be obtained without charge by writing the Acquiring
Fund at the address set forth above or by calling 1-800-874-3733. This Statement
of Additional Information should be read in conjunction with such Proxy
Statement and Prospectus.
    






                                      B-1
<PAGE>
 
                                     PART C

        

ITEM 16.  EXHIBITS

   
11.       Opinion of Debevoise & Plimpton as to the legality of securities being
          issued and Consent; filed herewith.

17.       Prospectus and Statement of Additional Information of Lord Abbett
          Securities Trust, dated March 1, 1996, incorporated herein by
          reference to post-effective amendment No. 10 to Registration Statement
          on Form N-1A of Lord Abbett Securities Trust. (File nos. 33- 58846 and
          811-7538) filed on or about February 29, 1996.
    





                                      C-1
<PAGE>

                                   SIGNATURES

  *Post-effective  amendment  No. 1 to this  Registration  Statement has been
signed on behalf of the Registrant in the City of New York and State of New York
on the 24 day of April 1996,  who certifies that this  Post-Effective  Amendment
No. 1 meets all the requirements for  effectiveness  under paragraph (b) of Rule
485 under the Securities Act of 1933, as amended.

              
                     LORD ABBETT TAX-FREE INCOME FUND, INC.



                             By:/s/ Ronald P. Lynch
                                    ---------------
                                    Ronald P. Lynch
                                    Chairman of the Board

            *Post-Effective Amendment No. 1 to this Registration Statement has
been signed by the following persons in the capacities indicated and on the
dates indicated.


   
         SIGNATURE                           TITLE                       DATE
         ---------                           -----                       ----

/s/ Ronald P. Lynch                Chairman of the Board
- -------------------------------    and Director                       4/24/96
    Ronald P. Lynch                

/s/ Robert S. Dow                  President and Director
- -------------------------------                                       4/24/96
    Robert S. Dow

/s/ John J. Gargana, Jr.           Vice President and
- -------------------------------    Chief Financial Officer            4/24/96
    John J. Gargana, Jr.           

/s/ E. Thayer Bigelow              Director
- -------------------------------                                       4/24/96
    E. Thayer Bigelow

/s/                                Director
- -------------------------------                                       ----------
    Stewart S. Dixon

/s/                                Director
- -------------------------------                                       ----------
    John C. Jansing

/s/ C. Alan MacDonald              Director
- -------------------------------                                       4/24/96
    C. Alan MacDonald

/s/                                Director
- -------------------------------                                       ----------
    Hansel B. Millican, Jr.

/s/ Thomas J. Neff                 Director
- -------------------------------                                       4/24/96
    Thomas J. Neff

/s/ E. Wayne Nordberg              Director
- -------------------------------                                       4/24/96
    E. Wayne Nordberg


    

                                      C-2
<PAGE>
 
                                  EXHIBIT INDEX


            The  following  exhibits  are  filed as a part of this  Registration
Statement pursuant to General Instruction G of Form N-14.


EXHIBIT                                                                   PAGE
NUMBER    DESCRIPTION                                                    NUMBER
- ------    -----------                                                    ------

   
(11)      Opinion of Debevoise & Plimpton as to legality of securities
          being issued and Consent.
    

                                       C-3


 
                                                                      Exhibit 11

 
                                                                  April 24, 1996


                       [Debevoise & Plimpton Letterhead]


Lord Abbett Tax-Free Income Fund, Inc.
The General Motors Building
767 Fifth Avenue
New York, New York  10153


                     Lord Abbett Tax-Free Income Fund, Inc.
                       Registration Statement on Form N-14
                     --------------------------------------

Ladies and Gentlemen:

     We have acted as counsel to Lord Abbett Tax-Free Income Fund, Inc. (the
"Registrant"), a Maryland corporation, in connection with the preparation and
filing with the Securities and Exchange Commission under the Securities Act of
1933, as amended, of a Registration Statement on Form N-14 (File No. 811-3942)
and Post-Effective Amendment No. 1 thereto (as so amended, the "Registration
Statement"), relating to the issuance of shares of the capital stock of the New
York Series, currently referred to in the Registrant's Articles of Incorporation
as the New York Tax-Exempt Class (the "Acquiring Fund"), a series of the
Registrant.

     Such shares are to be established and designated as the Class C shares (the
"Class C shares").  The Class C
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shares are to be issued to Lord Abbett New York Tax-Free Income Trust (the
"Acquired Trust"), a series of Lord Abbett Securities Trust (the "Securities
Trust"), a Delaware business trust, pursuant to an Agreement and Plan of
Reorganization (the "Acquired Trust Plan") between the Registrant, on behalf of
the Acquiring Fund, and the Securities Trust, on behalf of the Acquired Trust,
substantially in the form of Exhibit A included in Part A of the Registration
Statement.  Such issuance of the Class C shares is to be made in connection with
the acquisition by the Acquiring Fund of the assets of, and the assumption by
the Acquiring Fund of the liabilities of, the Acquired Trust.

     In so acting, we have examined and relied upon the originals, or copies
certified or otherwise identified to our satisfaction, of such documents,
records, certificates and other instruments and have made such other investi
gations as in our judgment are necessary or appropriate to enable us to render
the opinion expressed below.  We have not, however, undertaken any independent
investigation of any factual matter set forth in any of the foregoing.

     Based on the foregoing, we are of the following opinion:

     Assuming that the Acquired Trust and the Acquiring Fund duly execute and
deliver the Acquired Trust Plan, that the Acquired Trust Plan and the
reorganization provided for thereby are duly approved by the shareholders of the
Acquired Trust, that the transactions contemplated by the Acquired Trust Plan
are duly consummated and that the charter documents substantially in the forms
of Exhibits 1(f), 1(g) and 1(h) to the Registration Statement are duly approved
and filed with the State Department of Assessments and Taxation of Maryland, the
Class C shares issued pursuant to the Acquired Trust Plan will be legally
issued, fully paid and non-assessable.

     We understand that the authorized shares of capital stock of each series
and of each class of each series of the Registrant are sufficient for the
issuance of the Class C shares that would be issued pursuant to the Acquired
Trust Plan if the closing under such Plan took place today.  The foregoing
opinion assumes that if, pending such closing, additional authorized shares are
required, the
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Registrant will amend its Articles of Incorporation to provide for such
authorized shares.

     This opinion is limited solely to the federal law of the United States and
the Maryland General Corporation Law as in effect on the date hereof and the
relevant facts that exist as of the date hereof.  Without limiting the
generality of the foregoing, we express no opinion concerning other laws of the
State of Maryland, including the securities laws of such state, or the laws of
any other jurisdiction other than the United States.  No assurance can be given
that the law or facts will not change, and we have not undertaken to advise you
or any other person with respect to any event subsequent to the date hereof.

     We are delivering this opinion to you and, without our prior written
consent, no other persons are entitled to rely on this opinion.  We consent to
the filing of this opinion as an Exhibit to the Registration Statement.  In
giving such consent, we do not thereby concede that we are within the category
of persons whose consent is required under Section 7 of the Securities Act of
1933 or the Rules and Regulations of the Securities and Exchange Commission
thereunder.


                                             Very truly yours,

                                             /s/ Debevoise & Plimpton


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