CENTURY 21 Real Estate Alliance is a dynamic real estate company serving the Nine Bay Area Counties, and offering a full range of services to home buyers and sellers. Our agents create results through teamwork, experience and knowing our community.


Excellence, Honesty, Integrity, Teamwork, Friendliness and Success.

About Us


Our mission is to treat all our clients, associates and staff members with dignity and respect; to ensure that each of our clients will receive the finest service in each and every real estate transaction.


We remain committed to the simple idea our company was founded on, earning the trust of our clients, one by one. We strive to provide the utmost quality business environment to promote professional growth and personal freedom for all. To maintain the status as the top Real Estate Organization and a continued success in Bridging Buyers and Sellers.

Bridging the gap between ordinary and extraordinary

The Best Management Team in the Bay Area

Orhan Tolu
Romeo Aurelio JR.
Bailey Cheung
Sev Daudert
Hanna Ibrahim
Hanna Ibrahim
Janet Halliburton
Ernest Reyla

Office Locations

With 10 offices, and growing, Century 21 Real Estate Alliance is the largest Century 21 group in the Bay Area, with over 500 agents. Our . associates can use any of our locations to meet with clients, use a computer and printers, or just get a cup of coffee.Real estate in the Bay Area crosses local boundaries; we are situated to serve all nine counties and are members of all those MLS systems.

Orhan Tolu


Orhan Tolu has been actively engaged in all aspects of Real Estate including Commercial Real Estate and Finance for over 30 years. He joined Century 21 Alliance as Vice President in 1997 and immediately increase the company production and number of Agents. On 2007 he acquired the company as CEO/President and became responsible in all aspect of daily company operations, recruiting and agent production.

Romeo Aurelio

Vice President / General Manager

At CENTURY 21 Realty Alliance we appreciate and encourage individual career choices. The CENTURY 21 Career Development System allows an agent to identify and pursue the career that’s right for them. These aren’t just words. It’s what the CENTURY 21 System does for me, and all of our agents, every day. This is done not through size, but through resources, experience, and expertise. We believe that the CENTURY 21 System technology is second to none.

Hanna Ibrahim

Hanna Ibrahim


Hanna Ibrahim has been in the real estate business since 2002, he became a broker in 2005. His knowledge covers Commercial, residential, land and business opportunity transactions. He holds an Associate of Applied science degree in electronics engineering including software and hardware. His experience in the REO’s, short-sales, distressed properties and fixer uppers projects is unmatched. Hanna Likes Team work, problem solving, negotiating, and prompt communications. He has been training and managing real estate agents since 2002.