CERTIFICATION
  CD
2007-CD4 Commercial Mortgage Trust (the “Trust”), Commercial Mortgage
Pass-Through Certificates Series CD 2007-CD4 (the “Certificates”)
  I, Paul
T. Vanderslice, a Managing Director of Citigroup Commercial Mortgage Securities
Inc., the depositor into the above-referenced Trust, certify that:
  1.           I
have reviewed this report on Form 10-K and all reports on Form 10-D required to
be filed in respect of the period covered by this report on Form 10-K of CD
2007-CD4 Commercial Mortgage Trust (the “Exchange Act periodic
reports”);
  2.           Based
on my knowledge, the Exchange Act periodic reports, taken as a whole, do not
contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which
such statements were made, not misleading with respect to the period covered by
this report;
  3.           Based
on my knowledge, all of the distribution, servicing and other information
required to be provided under Form 10-D for the period covered by this report is
included in the Exchange Act periodic reports;
  4.           Based
on my knowledge and the servicer compliance statements required in this report
under Item 1123 of Regulation AB, and except as disclosed in the Exchange Act
periodic reports, the servicers have fulfilled their obligations under the
servicing agreement(s) in all material respects; and
  5.           All
of the reports on assessment of compliance with servicing criteria for
asset-backed securities and their related attestation reports on assessment of
compliance with servicing criteria for asset-backed securities required to be
included in this report in accordance with Item 1122 of Regulation AB and
Exchange Act Rules 13a-18 and 15d-18 have been included as an exhibit to this
report, except as otherwise disclosed in this report.  Any material
instances of noncompliance described in such reports have been disclosed in this
report on Form 10-K.
  In giving
the certifications above, I have reasonably relied on information provided to me
by the following unaffiliated parties: Wachovia Bank National Association as
Master Servicer No.1 and Master Servicer in regards to the Ala Moana Portfolio
Trust Mortgage Loan; Midland Loan Services, Inc. as Master Servicer No. 2 and as
Master Servicer in regards to the Mall of America Trust Mortgage Loan; Capmark
Finance Inc., as Master Servicer No. 3 and as Master Servicer in regards to the
DB Americold Portfolio Trust Mortgage Loan and the JQH Hotel Portfolio B-Note
Trust Mortgage Loan; LNR Partners, Inc., as Special Servicer and as Special
Servicer in regards to the Mall of America Trust Mortgage Loan, the DB Americold
Portfolio Trust Mortgage Loan and the JQH Hotel Portfolio B-Note Trust Mortgage
Loan; CWCapital Asset Management LLC, as Special Servicer; LaSalle Bank National
Association, as Certificate Administrator and as Trustee in regards to the Ala
Moana Portfolio Trust Mortgage Loan; J.E. Robert Company, Inc., as Special
Servicer in regards to the Ala Moana Portfolio Trust Mortgage Loan; Global
Realty Outsourcing Inc. as servicing function participant; and First American
Commercial Real Estate Services, Inc. as servicing function
participant.
  Dated:
March 27, 2008
    /s/
Paul Vanderslice
 Paul T.
Vanderslice
 Managing
Director
 Senior
Officer in Charge of Securitization of the Depositor