About Us

With over twenty years of a proven track record in the New York real estate market, we have access to thousands of listings and provides thorough guidance and data driven consulting to each client. Our multilingual team guarantees personalized attention, confidentiality, and exceptional personal concierge service – everything that clients seeing luxury properties in New York City rightfully expect and deserve.

One and Only Realty, Inc. is an international boutique real estate company headquartered in New York City. We represent the interests of companies and individuals involved in luxury real estate transactions, including purchases and sales of apartments, houses, and businesses.

We work with the best New York law firms, where highly experienced attorneys offer detailed consultation tailored to the exact needs of our distinguished clients. This extends to the clients business and personal interests, including corporate legal matters, immigrant advice and assistance in the business acquisition  process.

We Made It Happen

Gennady Perepada "Mr. Manhattan"

Gennady Perepada "Mr. Manhattan"

Founder and President

Gennady Perepada is a licensed real estate broker based in New York City. Born in Ukraine, Mr. Perepada immigrated to the United States in 1990 and has been conducting business in the New York City tri-state area for over twenty years. He is the founder and President of One and Only Realty, Inc., a real estate brokerage firm headquartered in New York City, and founder of One and Only Holdings. Gennady is fluent in both English and Russian, and is an excellent listener and communicator. His mission and highest priority is to provide the best service for his clients, each and every time they need him. To that end, Gennady takes the time to listen to his clients and to discern their needs and preferences, down to the smallest details. He takes great care to tailor his services to accommodate the unique and specific needs of each client, and always follows through to make sure that these needs are met. He is proud of his personalized transaction methodologies, which allow him to confidently guarantee that his clients will benefit from service of the highest quality.  Gennady’s great attention to detail ensures that each of his clients receives only the very best that New York City has to offer, and his own success stands as evidence of his clients’ satisfaction. His outstanding commitment to client satisfaction transforms each simple transaction into a comfortable yet extraordinary experience. info@gennadyperepada.com www.gennadyperepada.com/ (212) 505-0200
Edward A. Mermelstein

Edward A. Mermelstein


Edward is a Russian-American real estate attorney, legal strategist, businessman, and developer based in New York City. He is especially skilled in international corporate and real estate law, private equity investment and joint ventures, real estate investment, management and development as well as claims and disputes resolution. Edward is also fluent in both English and Russian.  With an impressive number of victories to his name, a keen understanding of the global political arena, and a knack for nimbly navigating international markets, Edward has been named one of the 10 most influential figures in New York City real estate. Often quoted in the New York TimesBloombergthe Wall Street Journal, and The Real Deal, Edward is regarded as a leading expert when it comes to closing complex deals and winning unique legal cases. Edward has also been featured on numerous talk shows  such as Fox News, CNBC and Reuters. info@edwardmermelstein.com www.edwardmemerlstein.com (212) 505-0200

Start Today

From property search to real estate investing advice and property management services – One and Only Realty will guide you from the beginning to the end of your real estate transaction. Our commitment is to deliver results and exceed your expecations. Whether working with a local, national, or international client, we make every transaction a one of a kind experience.

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