About Justin Duffy


Agent Details

Meet Justin

Licensed Associate Real Estate Broker
Justin Duffy is the Director of Operations for The AMM Team and a Licensed Associate Real Estate Broker. As Director of Operations, he is known for his astute attention to detail, communication, and ingenuity. He manages day-to-day operations for The AMM Team and ensures all team members and their clients are fully supported. As an experienced real estate broker, he is known for his marketing expertise, negotiation skills, and organized focus on every transaction. These qualities, combined with the global network and reach of Sotheby's International Realty, allow Justin to provide unparalleled real estate advisory for buyers, sellers, and investors in Manhattan and worldwide.
Prior to real estate, Justin worked in the fashion industry as a regional manager, merchandiser, store designer, and window dresser. He was born and raised in Brick, NJ along the New Jersey Shore, and currently resides in Lincoln Square with his three-year-old rescue dog, Terra. Justin is a member of the Real Estate Board of New York, the New York Residential Agent Continuum, holds a Master Certified Negotiation Expert® designation from the Real Estate Negotiation Institute, and is a licensed Notary Public.
Amanda Cannon Goldworm, Megan Duryea Scott, and Merrill Curtis work in partnership to bring a new level of service to both buyers and sellers in New York City. Utilizing more than 45 years of combined experience, The AMM Team brokered $115 million in closed volume in 2022. They have ranked consistently among the top 10 teams across Sotheby's International Realty nationwide and have been repeatedly recognized by REAL Trends America's Best as being in the top 0.5% of sales agents in the U.S. Their encyclopedic knowledge of New York neighborhoods, buildings, floorplans, and the intricacies of cooperative boards, distinguishes them among their peers. Their seasoned negotiation and marketing skills, as well as networks of designers and architects, enable them to offer a highly personalized and full-service approach to every client.
Some of The AMM Team's notable sales include a high-floor apartment at the iconic Central Park Tower on 217 West 57th Street for $17.3 million, the historic Scribner Townhouse at 39 East 67th Street for $16 million, 320 Central Park West Penthouse for $15 million, a new development condominium at 10 Madison Square West for $14.5 million, 17 East 89th Street Penthouse for $11 million, a 14-room apartment at River House for $10.495 million, a classic Carnegie Hill Townhouse at 52 East 91st Street for $9.45 million, and a duplex at 925 Park Avenue for $8.3 million representing both the buyer and seller.

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