Mary 'Jo Ann' Byrne

Mary “JoAnn” Byrne is a Licensed Real Estate Salesperson, Certified Luxury Specialist, and founding member of The Byrne Homes Team at Christie’s International Real Estate Group in the White Plains Sales Gallery. She brings over 20 years of experience in residential real estate, representing buyers, sellers, investors, and developers throughout Westchester County, New York, and Fairfield County,

Mary “JoAnn” Byrne is a Licensed Real Estate Salesperson, Certified Luxury Specialist, and founding member of The Byrne Homes Team at Christie’s International Real Estate Group in the White Plains Sales Gallery. She brings over 20 years of experience in residential real estate, representing buyers, sellers, investors, and developers throughout Westchester County, New York, and Fairfield County, Connecticut.

In addition to traditional residential sales, JoAnn works closely with developers and property owners to successfully lease rental units and market new residential developments, offering strategic guidance on pricing, positioning, and tenant outreach. Her hands-on approach and market insight help maximize exposure and occupancy for both newly constructed and renovated properties.

Known for her professionalism, deep market knowledge, and warm, approachable style, JoAnn guides clients through every step of the real estate process with clarity and confidence. She is highly regarded for her attentive, honest, and personalized service, earning the trust of clients who value a detail-oriented, full-service experience.

JoAnn’s passion for real estate began more than two decades ago as an investor, where she gained extensive hands-on experience rehabbing homes. Today, she owns multiple rental properties and leverages her background as a landlord, renovator, and designer to provide clients with a distinct advantage. Her understanding of construction, staging, and interior design—combined with her close collaboration with builders, contractors, and architects—helps buyers recognize potential and enables sellers and developers to position properties for timely, well-priced success.

Prior to transitioning into real estate full-time, JoAnn earned her MBA in Finance and Investing, further strengthening her analytical and investment-focused approach. She is fluent in Italian, Russian, French, and Spanish, allowing her to serve a diverse and international clientele with ease.