We are deeply saddened to confirm the passing of our Chairman and CEO Doug Shorenstein.

Doug had been ill for some time and fought a courageous battle with his illness. Through it all, he maintained a positive and hopeful outlook, and he remained steadfastly focused on serving his family, his colleagues and his community.

We will miss him dearly.

Read Doug's Bio

Mark E. Portner

Managing Director,
Capital Transactions

Mark Portner joined Shorenstein in 1999. He is responsible for overseeing the company’s acquisition and disposition activity in the Eastern United States, including sourcing, evaluating, negotiating, and closing transactions.

Mr. Portner is a member of the Urban Land Institute and The Real Estate Group.

Prior to joining Shorenstein, Mr. Portner was a vice president at Carey Winston Company in Washington, D.C. where he specialized in the disposition of distressed loans.

Mr. Portner graduated from University of Richmond with a B.S., and from Columbia University with an M.B.A.