LAWYER PROFILE
Stuart Hammer

Stuart Hammer

USA 2026

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Ranked in 1 practice area

About

Provided by Debevoise & Plimpton LLP

Practice Areas

Stuart Hammer leads Debevoise’s Environmental Practice Group. For more than two decades, he has advised private equity firms and corporations on environmental issues in mergers and acquisitions, financings, securities offerings and other transactions. He has counseled clients on the environmental risks associated with hundreds of transactions involving facilities in the United States and overseas. Mr. Hammer also advises investors on ESG issues.

Mr. Hammer is consistently ranked as a leading lawyer in environmental law. He is noted as a top-tier lawyer for the Environment: Mainly Transactional category by Chambers USA (2022), in which clients laud him for being “an amazing resource for complex environmental matters,” and where he is singled out for being “a consummate professional who brings well-rounded knowledge and sharp analytical skills to his clients.”

Mr. Hammer is a sought-after speaker on environmental and ESG matters and has written prolifically on environmental and climate change issues. Recently, he co-authored an article on the ESG agenda for fund managers and investors, which featured in Debevoise’s 2021/2022 Private Equity Year-End Review and Outlook (January 2022) and co-wrote an article on ESG regulatory changes in Europe in Debevoise’s 2021 Private Equity Midyear Review and Outlook (July 2021).

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Environment: Mainly Transactional - New York

Band 1
Band 1

Individual Editorial

Stuart Hammer leads Debevoise's Environmental Practice Group, focusing on environmental aspects of corporate transactions, including due diligence and enforcement. He is known for his nuanced regulatory understanding and site conditions expertise.

Strengths

Provided by Chambers

  • Stuart is a highly responsive counsel who looks for practical solutions to complex issues.

    Environment: Mainly TransactionalChambers Guide to the USA
  • Stuart is best in class when it comes to service and sensible, commercial advice.

    Environment: Mainly TransactionalChambers Guide to the USA
  • Stuart is great. He is very knowledgeable about the business and is always able to be flexible and helpful.

    Environment: Mainly TransactionalChambers Guide to the USA
  • Stuart is a seasoned environmental attorney who has substantial M&A experience involving most types of industries.

    Environment: Mainly TransactionalChambers Guide to the USA
  • Stuart is a very competent and knowledgeable individual. He can be very thorough and is a pleasure to work with.

    Environment: Mainly TransactionalChambers Guide to the USA

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District of Columbia

New York

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