----

|  | Re: | LB-UBS Commercial Mortgage Trust 2007-C6Commercial Mortgage Pass-Through Certificates, Series      2007-C6 |
|--|-----|------------------------------------------------------------------------------------------------------------|

|      Pursuant to Section 3.13 of the      Pooling and Servicing Agreement dated as of August 1, 2007 (the "Pooling and Servicing      Agreement"), among Merrill Lynch Mortgage Investors, Inc., as      depositor, KeyCorp Real Estate Capital Markets, Inc. as master servicer      (the "Master Servicer") and Wells      Fargo Bank, National Association, as master servicer, Centerline Servicing      Inc., as special servicer, U.S. Bank National Association, as trustee,      Wells Fargo Bank, National Association, as certificate administrator, and      LaSalle Bank National Association, as custodian, with respect to the      Och-Ziff Retail Portfolio Loan Combination (the "Loan"), I, Bryan      Nitcher, in my capacity as Senior Vice President of KeyCorp Real Estate      Capital Markets, Inc., do hereby statethat:  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.   | A review      of the Master Servicer's activities during the reporting period ending      December 31, 2007, and of its performance under the Pooling and Servicing      Agreement with respect to the Loan has been made under my      supervision. |
|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | To the      best of my knowledge, based on my review, the Master Servicer has      fulfilled all of its obligations under the Pooling and Servicing Agreement      with respect to the Loan in all material respects throughout the reporting      period ending December 31,2007. |
|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| By:  | /s/ Bryan      Nitcher      | Date:     | March 13, 2008 |
|-----------|---------------------------------------|-------------------------------|----------------|
|      | Bryan      Nitcher               |                          |           |
|      | Senior      Vice President  |                          |           |

----