Mark Sullivan
Executive Vice President, Colliers
Washington, DC 20006
Phone (202) 534-3615
Mobile (703) 867-8846
Specialties
Investment Sales Broker, Landlord Rep (Office), Tenant Rep, Tenant Rep (Office)
Property Types
Office, Specialty
Markets
Washington, DC
Bio
Mark Sullivan is a native of Metropolitan Washington, DC, whose experience in the commercial real estate industry allows him to lead the Colliers International DC agency team to success. Mark offers clients the highest quality service through a strategic, thoughtful and proactively analytical approach. He uses his vast knowledge of historic and present market news, trends, and statistics to create added value for his clients. Over the course of his career thus far, Mark has represented approximately eight million square feet of office projects on behalf of both local developers and institutional owners/advisers, as well as completed over six million square feet of leasing transactions.
He began his career in 1994 with Cushman & Wakefield’s predecessor(s) (DTZ, Cassidy Turley and Cassidy & Pinkard) as a market analyst covering
downtown Washington, DC before moving to brokerage in 1996. Prior to joining Colliers, Mark served as an Executive Managing Director of Cushman
& Wakefield’s Washington, DC office where he specialized in office leasing.
Education
Awards
