Mark E. Portner

Managing Director,
Investment Group – East

Mark Portner joined Shorenstein in 1999.  He oversees the Eastern United States Investment Group which includes Capital Transactions, Asset Management, Leasing, and Development.  His responsibilities include overseeing the sourcing of investment opportunities and directing the underwriting, due diligence, structuring and closing of capital transactions.  In addition, he is responsible for the investment performance of assets in the East through oversight of the development and execution of asset specific strategies during the company’s ownership. 

Mr. Portner is a member of the Urban Land Institute.

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.