**Exhibit 31.1**

**CERTIFICATION**

**PURSUANT TO 17 CFR 240.13a-14**

**PROMULGATED UNDER**

**SECTION 302OF THE SARBANES-OXLEY ACT OF 2003**

I, Kenneth J. Witkin, certify that: 

1. I have reviewed this annual report on Form 10-K of CBRE Realty Finance, Inc.; 

2. Basedon my knowledge, this report does 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 withrespect to the period covered by this report; 

3. Based on my knowledge, the financial statements, and other financial informationincluded in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (asdefined in Exchange Act Rules 13a-15(e) for the registrant and we have: 

(a) designed such disclosure controls andprocedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within thoseentities, particularly during the period in which this report is being prepared; 

(b) designed such internal controlover financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principals; 

(c) evaluated the effectiveness of theregistrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on suchevaluation; and 

(d) disclosed in this report any change in the registrant’s internal control over financialreporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, theregistrant’s internal control over financial reporting; and 

5. The registrant’s other certifying officer and I havedisclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and 

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in theregistrant’s internal control over financial reporting. 

 

Date: March 17, 2008