Meet Our Team

Amy McNamara
Amy McNamara | Vice President

Amy McNamara is a Vice President with Colliers International, specializing in leasing and sales of high-rise, mid-rise and garden office / investment properties. She has joined Colliers International from Cushman & Wakefield with 25 years experience in real estate. Amy has participated in leasing and sales transactions totaling over five million square feet. She works closely with business owners, investors, developers and financial institutions to help formulate and execute a comprehensive real estate strategy to achieve her client’s goals and objectives.

Amy has represented such clients as Wachovia, Wells Fargo, New York Life Insurance Company, NuVision Credit Union, RYAN Companies, Suburban Water Systems, Kaiser Permanente Fed Credit Union, Principal Financial Group, AMC, and Rockefeller Group Development Corporation. Since 1993 she has completed sales transactions totaling over $213 million.

Amy has received numerous honors and awards including Top Office Producer for 16 years and Top Producer Overall. She attended Mount San Antonio College and received her Associate of Arts degree. She also attended University of California Los Angeles for Real Estate Finance courses. She is involved with NAIOP, Commercial Real Estate Woman: Membership & Sponsorship Committees (CREW) and is a Commercial Investment Consultant (CIC).

Marc Posthumus
Marc Posthumus | Vice President

Marc Posthumus is a Commercial Real Estate Broker with over fourteen years experience in the industry. During his career he has completed over 400 transactions and has leased or sold over $300 million worth of commercial property. Mr. Posthumus is committed to the highest level of client service and his primary areas of focus are office, industrial and R&D properties.

Mr. Posthumus is an expert in the area of owner occupied real estate and private capital investment sales. He takes a consultative approach to advising his clients on their long term real estate strategy. Mr. Posthumus has extensive experience in both acquisitions and dispositions and works closely with his clients to navigate through the process of both conventional and SBA financing.

Giving back is an important part of the team's strategic approach and they donate 10% of his commission on sales transactions to the charity of the clients’ choosing.

San Diego
4350 La Jolla Village Drive, Suite 500 San Diego, CA 92122 United States | Tel: +1 858 455 1515