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New York Empire Team

A professional and personal approach to real estate. 

Trusted, preferred, referred, and invested.


Jerry Gemignani

Team Leader

Licensed Real Estate Salesperson

Jerry's expertise and network have allowed him to achieve record-breaking prices for his sellers, and to secure winning bids for his buyers. From researching the potential value of a property to closing the transaction, Jerry is a trusted adviser making sure he understands his clients’ objectives. 


Residential and commercial sellers, buyers and investors rely on Jerry's creative ability to identify opportunities within their purchase parameters. They appreciate his straight-forward communication, tenacious research, and unstoppable commitment that leads to profitable decision making. 


Over the past 14 years, Jerry has developed a large and loyal client base of homeowners and investors through a history of financially successful transactions. His national and international clientele is professionally served by Keller Williams’ Global Property Specialist Platform which attracts international buyers from over 20 countries across Asia, Europe, the Middle East, and South America. His trusted, long standing business contacts include experts in real estate law, development, finance, and investment, which allows Jerry to meet his clients’ evolving needs. 

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Winifred Stone

Operations & Administration

Licensed Real Estate Salesperson

A native New Yorker, Winifred Stone was born and raised in Queens. She attended LaGuardia High School where she was trained in Fine Art and obtained her B.A. in Art History. Her background and experiences working internationally gives her the ability to see things from various perspectives, and approach matters diplomatically. Prior to real estate, she had a career in education, international relations, healthcare and social work.


As Director of Operations and Administration, Winifred handles each transaction with care, and delivers her service with integrity, dedication, and attention to detail. Winifred is the coordinator of every aspect of the real estate deal, including listing management, marketing, board packages, scheduling and beyond. When a challenge arises, Winifred is always ready with a professional, positive attitude to deliver impeccable service.


Winifred believes that the real estate agent you choose to work with will influence the experience you will have. Fluent in Mandarin and Korean, she knows what truly drives communication. She understands the different characteristics and nuances of each client, from buyers, sellers, landlords, and renters; she is able to discern what each client needs, and how to advocate for them. Winifred and her team at Keller Williams are here to make your experience the preferred one.

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Nancy Castle Donahue

Licensed Real Estate Salesperson

Licensed Real Estate Salesperson

Nancy Donahue was born and raised in Lowell, Massachusetts, and attended nearby Lasell College and Newbury College. She earned A.A. Degrees from both universities, in Fashion Merchandising from Lasell and in Culinary Arts from Newbury, where she graduated top of her class. She was discovered in college, became one of the top models of the 80’s, and went on to work as a pastry chef, a certified personal trainer, a fitness director of a high-end country club, and an entrepreneur. Having worked in such a range of high-profile industries, Nancy has formed connections across the city, which she plans to leverage in her real estate career.

In all of her professions, Nancy’s networking and communication skills have proved her most important attributes. She supports her natural knack for relationship building with her learned business development and professionalism, and her pas … t clients commend her for her honest and hardworking approach. She plans on helping her friends, acquaintances, and past colleagues in buying and selling their New York City homes, some of whom have already reached out to begin the process.

Nancy has lived and worked in New York City on and off since 1978, in many different neighborhoods and types of apartments. She’s currently dwelling in the Upper West Side, enjoying the nearby Riverside and Central Park. She herself has learned the importance of having a ‘home’ in the city, no matter the size. In addition to frequenting her local parks, Nancy also practices yoga daily and enjoys distance swimming. She has completed the swim from Alcatraz twice, and also recently swam from the Statue of Liberty to the Clock Tower in New Jersey.

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Christiane Thomas

Licensed Real Estate Salesperson

Licensed Real Estate Salesperson

Christiane is known in her circle for her impeccable work ethic and dedication to providing high-quality service to her clients. She understands that real estate is challenging and to many, the most expensive decision of their life. She is dedicated to providing the best service to make the purchase or sale of their home, easier for her client. Her background in marketing, taught her the value in product knowledge and communication. And it is her insight and attentiveness that helps her clients examine their real estate options and make a clear decision that match their needs.


Her first introduction to real estate began when her father brought a piece of land in Hudson Valley, New York. It was here that she learned the complex process of buying, selling and building a home. Now a resident in Brooklyn for over 5 years, Christiane couldn’t find herself in a better city to cultiv … ate her real estate career. She joined the Keller Williams family, for their national and international market reach. The Keller Williams environment allows Christiane to be consistently up on the latest market news and get ahead of market trends. Because of her global reach, Christiane has been able to provide service for not only her clients here in New York, but for her clients around the world. Christiane and her team at Keller Williams are here to make your experience a better one. Contact her today with all your real estate questions.

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