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Siobhan M. Green

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  • Siobhan was selected by her peers for inclusion in The Best Lawyers in America in the field of Real Estate Law, 2021
  • Siobhan was named for inclusion to the New York Super Lawyers Rising Stars list, a Thomson Reuters lawyer rating service for lawyers under 40, 2012
  • Siobhan was named one of The Top Women Attorneys in the New York Metro Area by The New York Times Magazine, 2012


J.D., Fordham University School of Law, 2002

  • Associate Editor, International Law Journal

B.S., Manhattan College

  • Dean’s List

Bar & Court Admissions

  • New York, 2003
  • New Jersey, 2002 (inactive)

As a real estate attorney at Olshan, Siobhan M. Green represents owners, developers and tenants on a broad range of commercial real estate transactions.

Siobhan is a highly experienced real estate attorney whose practice focuses on all aspects of the commercial leasing process. Handling leasing of office, retail, and mixed-use high-end properties in the prime business districts of New York City, she has represented prestigious landlords in negotiating leases, lease amendments, relocation agreements and surrender agreements, as well as consulting with clients on term sheets and letters of intent and negotiating brokerage and agency agreements.

Siobhan is well-versed in representing landlords with the leasing of large retail spaces, including a nearly 2 million square-foot Park Avenue building, two notable buildings in Lower Manhattan comprising approximately 5 million square feet, and an iconic New York City office and retail complex comprising approximately 8 million square feet. Additionally, she has represented tenants in negotiating office leases, including for headquarter space. 

Prior to joining Olshan, Siobhan was senior counsel in the real estate department of Holland & Knight LLP. She earned her J.D. from Fordham University School of Law and received her B.S. from Manhattan College. Siobhan was also a certified public accountant.

Professional & Community Affiliations

American Bar Association

New York State Bar Association

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