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Who

Gosin is CEO of Newmark Knight Frank, one of the largest real estate management firms in the U.S. He's also a major property owner in the New York area.

Backstory

East Flatbush native Gosin headed off to Indiana to attend college before returning to the city to make it in the real estate business. In 1978, he teamed up with partner Jeffrey Gural to purchase Newmark & Company from Jeffrey's father, Aaron Gural, who had purchased the firm from namesake Dave Newmark. It was a much smaller business then but with Gosin at the helm, it grew leaps and bounds during the '80s and '90s by moving into faded neighborhoods and leasing space to new tenants. Newmark took its biggest leap forward in 2006 when it concluded a merger with Knight Frank, the UK's biggest privately owned real estate firm. These days the combined company has 240 offices in over 30 countries, a staff of close to 5,000, and manages 40 million square feet of space in the city. In addition to Newmark, Gural and Gosin control some eight million square feet of property in the metropolitan area.

Of note

As a management firm, Newmark has handled deals for some of the biggest companies in town, including Interpublic, The Bank of New York, Purdue Pharma, and KeySpan Energy, as well as a slew of law firms including Paul Weiss, White & Case, Chadbourne & Parke, Cahill Gordon, and Kramer Levin. Perhaps Newmark's most notable leasing deal in recent memory, though, was 731 Lexington Avenue, otherwise known as One Beacon Court: It was Gosin who negotiated the deal that brought the headquarters of Bloomberg L.P. to the new tower, which proved to be an especially complex negotiation since the building's owner, Steve Roth's Vornado Realty Trust, had originally planned it to be a residential tower.

But Gosin doesn't just manage properties—he owns a number of them, too. His most prized asset is the landmark Flatiron building, which is principally owned by Gural, Gosin and Newmark president James Kuhn (as well as managed by Newmark). Gosin, Gural and Kuhn are now focused on a rotting steel mill in Bethlehem, Penn. that they purchased for $4 million and are planning to convert into a 5,000-slot machine casino, hotel, and retail complex.

Personal

Gosin's wife, Jackie, is a former personal trainer. He has two daughters: Brooke, a graduate of George Washington University; and Brie, who attended Indiana just like her dad. The Gosins live in Chappaqua. Barry commutes into the city in a chauffeur-driven Bentley.

No joke

As the co-owner of the Flatiron building, Gosin has had defend the "brand" on several occasions. When venture capitalist Fred Wilson tried to trademark the name and image for his late '90s firm, Flatiron Partners, the trio filed suit against Wilson. Gosin & Co. prevailed.