**CERTIFICATION      PURSUANT TO SECTION 302**

**OF      THE SARBANES-OXLEY ACT OF 2002**

|   | (a) | Designed                such disclosure controls and procedures, 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                those entities, particularly during the period in which this report                is                being prepared; |
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|   | (b) | Designed                such internal control over 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 for external                purposes in accordance with generally accepted accounting                principles; |
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|   | (c) | Evaluated                the effectiveness of the registrant'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 such evaluation;                and |
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|   | (d) | Disclosed                in this report any change in the registrant's internal control over                financial reporting that occurred during the   registrant's most                recent fiscal quarter that has materially affected, or is reasonably                likely to materially affect, the registrant's   internal control over                financial reporting; and |
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|   | (a) | All                significant deficiencies and material weaknesses in the design or                operation of internal control over financial reporting   which are                reasonably likely to adversely affect the registrant's ability to                record,                process, summarize and report financial   information;                and |
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|   | (b) | Any                fraud, whether or not material, that involves management or other                employees who have a significant role in the   registrant's internal                control over financial reporting. |
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|                            |                                                                                  |                                  |
|---------------------------------|---------------------------------------------------------------------------------------|---------------------------------------|
| Date:              May 15, 2007 |                                                                                  | /s/ David                A. Akre |
|                            | David                A. Akre                                                          |
|                            | Co-Chief                Executive Officer(Principal                Executive Officer) |

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