Mark Seltzer

Ensemble Investments, LLC

Senior Vice President, Development

Job Functions: Acquisitions & Dispositions, Development, Research & Strategy


Mark’s extensive background in commercial real estate includes 20+ years in the public and private sectors. Operating out of Ensemble’s Philadelphia office, Mark serves as a key member of our executive team to lead the vision, strategy, and execution of development opportunities in the East Coast Region. Previously, Mark was Vice President of Leasing & Property Development for Liberty Property Trust, where he was responsible for Development, Leasing, and Dispositions. During his tenure with Liberty, he oversaw 1.6 million SF of commercial real estate activity at the Philadelphia Navy Yard and managed the company’s relationship with the Navy Yard’s public sector development partner, PIDC.


Mark oversees pre-development, entitlement, design, construction, and opening activities, as well as leads acquisition pursuits.


Bachelor of Science, Accounting University of Maryland, College Park, MD

Master’s in Business Administration Drexel University Philadelphia, PA


NAIOP: Chairman, Executive Committee of the Greater Philadelphia Chapter, former Chapter President and member of the National Board of Directors

LEADERSHIP Philadelphia: Board of Directors, 2015-2018 Keeper’s Mentor, and 2014 Fellow

Select Greater Philadelphia’s Emissary Program: Inaugural member

Pennsylvania Horticultural Society (PHS): Strategic Planning Committee Member (2014)


Outside of work Mark enjoys spending time with his wife and their two boys and going to their non-stop sports games! When he has is an extra spare moment you can find him in the kitchen cooking or playing a round of golf.

Areas of Interest

Risk Profile
Deal Type
Acquisition, Development, Ground Lease, Loan Purchase, Opportunity Zone, Partner Buyout, Pre-Development, Recapitalization, Refinance, Rehabilitation
Property Type