Meet Our Agents



Michael J. Crespo

President / CEO

Michael J. Crespo – President / NYS Licensed Broker New York State Accredited Realty Manager – NYARM Mr. Crespo, the founder and President of Citadel Property Management Corp., has over 20 years experience in the real estate business through personal and commercial interests. Mr. Crespo is a New York State Accredited Realty Manager (NYARM) and active […]

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Mark Elman

Sr. Vice President

Mark Elman – Sr. Vice President / Property Management Mark Elman has been in the property management business for over 15 years managing residential, commercial income, mixed use properties, cooperatives, and condominiums. Mr. Elman’s experience runs far and wide. He has prepared, managed, and administered multi-million dollar financial budgets, coordinated and managed large building construction projects, […]

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Carl Redling

Real Estate Agent

Carl Redling – Assistant Property Manager / Licensed Agent

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Lisa Marie Umbelina

Licensed Agent

Lisa Marie considers herself a real estate entrepreneur and connoisseur. She specializes in all facets of the industry, with expertise in residential sales, investment property, rental property and property management; plus she holds a Short Sales and Foreclosure Resource (SFR)  certification. As a property owner, renovator and landlord, Lisa is of the belief that real […]

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Colette Coffman

Licensed Agent

Colette Coffman began her career in corporate finance and later assumed various senior marketing roles in the investment management divisions of Deutsche Bank, UBS and Goldman Sachs. A New York City resident for over 20 years, she has watched the city evolve through changing economic environments.  Having served on two co-op boards, she has first-hand […]

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Keith Lewinter

Real Estate Agent

Keith Lewinter’s passion for real estate began with the search for his first apartment in 1997. He has been closely monitoring the New York City real estate market for over 10 years. Keith is a graduate of the State University of New York College of Environmental Science and Forestry at Syracuse University with a B.S. degree […]

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