At Quinlan Strategies Inc, Every property is treated as if it were our own. Our NYC-based Condo & Co-op Residential Property Management Company offers reliable support by identifying opportunities to create value by providing proactive building management, project management, due diligence, and rent stabilization consulting services. We offer personalized and responsive condo and co-op property management services with attention to detail in New York City, the Bronx, Brooklyn, Manhattan, Queens, and Staten Island.me. It's easy.