EXHIBIT 23.1                                          

CONSENT OF WHITEHEAD & PORTER LLP

We hereby consent to the reference to our firm under the heading “Legal Matters” in the Prospectus that is part of the Registration Statement on Form S-11 (No. 333-69272) filed with the Securities and Exchange Commission on September 13, 2001, as may be amended by Post-Effective Amendment No. 6 to be filed on or about May 3, 2006.

/s/ WHITEHEAD & PORTER LLP

San Francisco, California
May 2, 2006