EXHIBIT 99.4
 
                          MACK-CALI REALTY CORPORATION
 
                 DIRECT REGISTRATION TRANSFER INSTRUCTION FORM
 
                 DIVIDEND REINVESTMENT AND STOCK PURCHASE PLAN
 
     FOR USE BY "STREET NAME" SHAREHOLDERS OF MACK-CALI REALTY CORPORATION
 
Dear "Street Name" Shareholder:
 
    Mack-Cali Realty Corporation's common stock is Direct Registration System
eligible. What this means is that you can now take advantage of the newest form
of book-entry share registration--Direct Registration. Direct Registration
allows you to register your shares on the books of the company and keep your
broker account information intact. This provides you with total portability
should you wish to sell your shares either through your broker or through the
company. In addition, once your broker initiates your Direct Registration
transfer, you are eligible as a registered shareholder to participate in
Mack-Cali Realty Corporation's direct stock purchase plan.
 
    If you want to transfer any of your "street name" shares to Direct
Registration, you can either:
 
1.  Call your broker and provide him or her with the following information and
    instructions or
 
2.  Fill out the form below with the information known to you and present it to
    your broker.
 
                        DIRECT REGISTRATION INSTRUCTIONS
 
    Authorization and instructions to my broker to transfer ____________ of my
shares from "street name" to a registered position through the Direct
Registration System. This transfer should be processed by my broker via the
Night Auto Withdrawal-By-Transfer (NWTI) function through the Depository Trust
Company (DTC) coded as a "S" transaction.
 
NAME:___________________________________________________________________________
 
ADDRESS:________________________________________________________________________
 
________________________________________________________________________________
 
________________________________________________________________________________
 
SOCIAL SECURITY OR TAX ID#:_____________________________________________________
 
BROKER/DEALER ACCOUNT #:________________________________________________________
 
<TABLE>
<S>                                             <C>
COMPANY:......................................  Mack-Cali Realty Corporation
 
CUSIP #:......................................  554489 10 4
 
ISSUE:........................................  Common Stock
</TABLE>
 
BROKER/DEALER NAME:_____________________________________________________________
 
BROKER./DEALER ID #:____________________________________________________________
 
<TABLE>
<S>                                             <C>
TRANSFER AGENT:...............................  ChaseMellon Shareholder Services
 
TRANSFER AGENT TELEPHONE #:...................  1-888-213-0883 (Toll Free)
</TABLE>
 
Signature of "Street Name" Owner:_______________________________________________
 
Date:___________________________________________________________________________