Ellen McCue, Ariana O’Malley, and Shelley Sheridan bring a trusted, experience-driven approach to the Three Keys Team, serving clients throughout Fairfield County. Grounded in deep local knowledge and decades of combined expertise, they provide clear guidance and highly personalized service to buyers and sellers at every stage of the process. Known for their integrity, discretion, and hands-on support, they help clients navigate each decision with confidence and achieve exceptional results.
Meet the Team
Ellen McCue
Ellen brings a relationship-driven, highly personalized approach to real estate, shaped by her background in retail, sales operations, and entrepreneurial ventures. A Penn State graduate with a degree in Human Development, she began her real estate career in 2011 and has guided buyers and sellers throughout Fairfield County with discretion, market expertise, and thoughtful advocacy. Having lived in Darien, Stamford, and Westport, and raised two sons locally in both public and private schools, Ellen offers authentic insight into the area’s communities and lifestyle. Outside of real estate, she enjoys skiing, design, and watching Boston sports with her boys.
Ariana O'Malley
Ariana has a client-first, design-focused approach shaped by her career in luxury marketing at Gucci and more than a decade in real estate. A graduate of Boston University, she lived in New York City before cultivating expertise in new home design and construction, as well as renovations. Known for her hands-on support, she works closely with sellers on everything from strategy and staging to decluttering and other labor-intensive prep, while also helping buyers envision how a property can be transformed into a home of their own. Having lived in the area for nearly her entire life, Ariana brings a deep understanding of the nuances between communities from Westchester through Fairfield Counties.
Shelley Sheridan
Shelley brings a tech-forward, strategic approach to real estate, shaped by her background in software and consulting sales. A graduate of Santa Clara University, she has lived in San Francisco, Amsterdam, and New York before settling in Connecticut, where her family is deeply rooted in the community. Known for her clear communication and thoughtful guidance, Shelley is a trusted resource for clients. Outside the office, she serves on the Board of The Community Fund of Darien and enjoys time on the golf course, the paddle courts, and with her husband, two children, and their yellow lab, Max.
