gary marquis expert real estate consultant orange county ca


Gary Marquis, the primary principal of EXPERT OPINIONS Real Estate Group, is a licensed California Real Estate Broker and has more than 40 years of commercial real estate brokerage and management experience in Southern California and been involved in several thousand commercial real estate transactions.

He has provided expert witness testimony and consulting services to noteworthy and highly satisfied clients in the past, and continues to do so. His strengths include extensive real estate knowledge, experience, and the ability to make an effective, professional presentation of his opinions in a manner trusted by the audience.

In terms of past experience, Mr. Marquis was the Founding Managing Partner of Voit Commercial where he was responsible to initiate, develop, and direct a staff of nearly 200 brokers, agents and administrators into one of the premiere commercial brokerage companies in Southern California. In addition, he was on the Executive Board of Los Angeles based Daum Commercial and responsible to build and oversee that company’s expansion into Orange County.

Perhaps unique in the Southern California commercial real estate industry, Mr. Marquis possesses the perspective of having been in upper management of two large commercial brokerage companies, many years of brokerage experience, and property ownership. Having hired and trained hundreds of licensed real estate brokers and agents in matters including legal contracts and forms, ethics, and professional conduct he has exceptional knowledge and understanding of the legal side of the industry.