About
Expert Property Management for Your Peace of Mind
GMS is a financially oriented firm with extensive knowledge and experience managing New York co-ops and condominiums. We use our deep know-how and leverage our back office team to manage every detail of your property.
Top Tier Residential Management
in New York
We have extensive experience serving the New York community, including Brooklyn, Queens, Staten Island and Nassau County. Our portfolio includes a wide variety of condominiums and co-ops across New York.
Proven Success, Value Adding Service
Our properties stay with us for years, with our proven success based on the value we add to each property and the relationships we build with our Boards, Owners and Tenants. We strive to increase your property value, reduce expenses, and build trusting relationships with each property.
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Average Increase in Property Value
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Average Reduction in Expenses
Meet the Principle
Marsha Grant
With extensive experience in real estate management, banking and finance, Marsha is a hands-on, knowledgeable manager and problem solver. Marsha is a licensed NYS real estate broker and a licensed NYS insurance broker. Marsha’s professional career has always revolved around management and finance, and her extensive experience makes her an expert hands-on manager at GMS.
Marsha has her BA in Business Accounting from Hunter College, and holds an MBA from St. John’s University.
Expert Back Office
and Team Mentality
Our back office is made up of hard-working knowledgeable staff members who genuinely care about your property. The GMS team mentality is unique to our operations. We leverage each team member’s unique skillset to efficiently solve problems and to provide each property with the highest quality services.