Patrick O'Sullivan is a a Partner in the Real Estate Practice of Herrick Feinstein LLP's New York office. 

Mr. O'Sullivan’s practice spans a wide range of real estate matters, with a focus on development issues, including those that arise in connection with public-private transactions.

Mr. O'Sullivan joined the firm in 2017. He received a J.D. degree from Harvard Law School in 2001 and an undergraduate degree, magna cum laude, from Harvard College in 1996. Prior to joining the firm, he spent several years at Cleary Gottlieb Steen & Hamilton, and before that he served as Executive Vice President and Head of the Real Estate Transactions Group at the New York City Economic Development Corporation (NYCEDC). Prior to his position at NYCEDC, Mr. O'Sullivan advised on corporate and securities law matters in private practice.

During his time at NYCEDC, Mr. O'Sullivan worked with leading real estate developers and investors in successfully executing complex, large-scale development transactions. Mr. O'Sullivan led New York City's acquisition of Brooklyn Bridge Park and Governors Island from New York State, and subsequently oversaw the negotiations of two Brooklyn Bridge Park sites for development. He also directed the City's efforts to reach agreement with New York University that will lead to the development of a new applied sciences school in Downtown Brooklyn focused on creating technology to address challenges facing cities.

Mr. O'Sullivan is a member of the Bar in New York. He is also a member of the Real Estate Board of New York, Economic Development Committee; the Association of the Bar of the City of New York, Housing and Urban Development Committee; and the Urban Land Institute.