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1901 Avenue of the Stars, Suite 1020, Los Angeles, California 90067

Mark A. O'Brien

Of Counsel


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Mark O’Brien is an experienced litigator and trial attorney specializing in complex business and real estate litigation and appeals. He has represented clients in litigation involving contract and partnership disputes, unfair business practices, sexual harassment and wrongful termination, insurance bad faith, and real estate disputes. He also has represented condominium associations regarding provisions in CC&Rs and bylaws, amendments to governing documents, and associations’ and directors’ fiduciary obligations.

Mr. O’Brien is admitted to practice before all courts of the State of California, the U.S. District Courts in California, the U.S. 9th Circuit Court of Appeals, and the U.S. Supreme Court.


Mark O’Brien was born in Philadelphia. In his free time, Mr. O’Brien enjoys offshore fishing, hiking and rock climbing.