Common use of CONTRIBUTOR Clause in Contracts

CONTRIBUTOR. Cxxx Capital Real Estate Investment, LLC, a Virginia limited liability company By: Cxxx Capital Corporation, a District of Columbia corporation, its managing member By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: President ACQUIRER: Columbia Equity LP, a Virginia limited partnership By: Columbia Equity Trust, Inc., a Maryland corporation, its general partner By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: CEO & Chairman

CONTRIBUTOR. Cxxx Capital Real Estate Investment, LLC, a Virginia limited liability company By: Cxxx Capital Corporation, a District of Columbia corporation, its managing member By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: President ACQUIRER: Columbia Equity LP, a Virginia limited partnership By: Columbia Equity Trust, Inc., a Maryland corporation, its general partner By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: CEO & ChairmanChairman and Chief Executive Officer

CONTRIBUTOR. Cxxx Capital Real Estate Investment, LLC, a Virginia limited liability company By: Cxxx Capital Corporation, a District of Columbia corporation, its managing member By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: President & CEO ACQUIRER: Columbia Equity LP, a Virginia limited partnership By: Columbia Equity Trust, Inc., a Maryland corporation, its general partner By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: CEO & ChairmanChairman and Chief Executive Officer

CONTRIBUTOR. Cxxx Capital Real Estate Investment, LLC, a Virginia limited liability company By: Cxxx Capital Corporation, a District of Columbia corporation, its managing member By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: President ACQUIRER: Columbia Equity LP, a Virginia limited partnership By: Columbia Equity Trust, Inc., a Maryland corporation, its general partner By: /s/ Oxxxxx X. Xxxx, III Name: Oxxxxx X. Xxxx, III Title: CEO & and Chairman