Teamwork is the ability to work together toward a common vision. The ability to direct individual accomplishments toward organizational objectives. It is the fuel that allows common people to attain uncommon results.

- Andrew Carnegie

Our Executive Team

Michael J. Samuels, MAI, CRE, FRICS, AI-GRS

Senior Valuation Services Director
Philadelphia

Michael J. Samuels is a Principal in the Colliers Philadelphia office. Mr. Samuels is a real estate consultant and appraiser with 45 years of related experience. He has worked on a diverse array of projects in his career.

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Joseph De Marinis, MAI

Valuation Services Director
Philadelphia

Joseph (Joe) De Marinis is a certified general appraiser in Pennsylvania with more than 18 years of related experience. Mr. De Marinis has worked on a wide variety of valuation and consulting assignments including apartment, industrial, office, mixed-use, retail, and special-use property types. 

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Affiliate Office

Colliers Washington D. C.

Washington D.C.
1625 Eye Street NW, Suite 950
Washington DC 20006