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|   | (1) | The      Report fully complies with the requirements of §13(a) or 15(d) of the      Securities Exchange Act of 1934;and |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------|

|   | (2) | The      information contained in the Report fairly presents, in all material      respects, the financial condition and results of operations of the      Operating Partnership. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Date:                      April      29, 2009 | By:    | /s/      Mitchell E. Hersh                                     |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------------------------------------------------------|--------|
|                                                                                                                                                         |   | Mitchell      E. Hersh                                         |
|                                                                                                                                                         |   | President      and Chief Executive Officer                     |
|                                                                                                                                                         |   |   of      Mack-Cali Realty Corporation,              |
|                                                                                                                                                         |   |   the      general partner of Mack-Cali Realty, L.P. |
|                                                                                                                                                         |   |                                                           |
|                                                                                                                                                         |   |                                                           |
| Date:                      April      29, 2009 | By:    | /s/      Barry Lefkowitz                                       |   |
|                                                                                                                                                         |   | Barry      Lefkowitz                                           |
|                                                                                                                                                         |   | Executive      Vice President and                              |
|                                                                                                                                                         |   |   Chief      Financial Officer                       |
|                                                                                                                                                         |   |   of      Mack-Cali Realty Corporation,              |
|                                                                                                                                                         |   |   the      general partner of Mack-Cali Realty,L.P.  |

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