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Printed from StreetEasy.com at 03:13 PM, Apr 30 2026

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For rent

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Experience

About Justin Duffy

**#1 Highest Average Sales Price Per Listing Among NYC Brokerages (The Real Deal 2025 Rankings)

**Career Average List-to-Contract Time Under 30 days

www.FifthMadisonGroup.com


Over the past decade as a broker, Justin has become known for his honesty and candor, his ability to translate customers' goals into strategy, his ability to usher the transaction forward, and a genuine care for his clients' wellbeing. A meticulous modern real estate professional with traditional business values, his clients often commend his professionalism, his ability to remain calm in difficult negotiations, and his sense of humor. Prior to founding Fifth Madison Group at Brown Harris Stevens, Justin spent several years at Sotheby's International Realty after leading another large, top-producing team at a smaller boutique real estate firm.


Previous to real estate, Justin worked in the fashion industry as a regional director, merchandiser, store designer, and window dresser. He was born and raised in Brick, NJ along the Jersey Shore and currently resides on 62nd and Park Avenue with his five-year-old rescue dog, Terra. You can often find him at East 60's neighborhood staples such as Bel Ami, David Burke Tavern and Equinox, or volunteering at New York Common Pantry.


Justin is an active member of Real Estate Board of New York, New York Residential Agent Continuum, and the American Real Estate Association. He holds a New York Residential Specialist® designation from REBNY, a Master Certified Negotiation Expert® designation from RENI and is a licensed Notary Public.

1(646)438-1632 · jduffy@bhsusa.com


We look forward to working for you.

NY License Number

10301219946 (Expires 04/01/2027)

NY Licensed Name

Duffy Justin

Recent deals

View homes bought or sold with Justin Duffy in the last 2 years.

0 Deals

Neighborhood expertise (5)

See where this Expert's deal history offers hyper-local knowledge.

Upper East Side
Lenox Hill
Sutton Place
Carnegie Hill
Upper Carnegie Hill

Building expertise

Get expertise on homes in these buildings. Justin Duffy has verified experience from past deals.

Past sales (113)

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Past rentals (139)

Prices shown are base rent before any fees. Visit listings for cost and fees breakdown.

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