LAWYER PROFILE

Deborah Feinstein

USA 2026

Arnold & Porter

Ranked in 1 practice area

Antitrust

District of Columbia

19 years ranked

About

Provided by Arnold & Porter

Practice Areas

Debbie Feinstein is a partner in Arnold & Porter's Antitrust/Competition practice group, advising clients on a range of antitrust issues. She rejoined the firm in 2017 from the US Federal Trade Commission (FTC), where she was Director of the Bureau of Competition from 2013-2017. National Law Journal named her one of the "50 Most Influential Women Lawyers in America" and Global Competition Review named her global "Lawyer of the Year" in 2010. Ms. Feinstein has advised clients on hundreds of transactions involving virtually all sectors of the economy, including retail, food, consumer products, healthcare, pharmaceuticals, chemicals, automotive parts, and government contractors.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Antitrust - District of Columbia

Band 1

Individual Editorial

Deborah Feinstein counsels clients in high-stakes merger clearance proceedings, as well as handling investigations and litigation. She is able to draw on her considerable experience both in private practice and in government, including her role as Director of the Bureau of Competition at the FTC.

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Strengths

Provided by Chambers

Debbie has a sharp mind and laser-like focus on the facts and issues that matter. She draws from her extensive experience to tailor her arguments.
AntitrustChambers Guide to the USA
Deborah is an extremely trusted counsel with a high level of expertise.
AntitrustChambers Guide to the USA
Debbie is extremely practical and hard-working. She has excellent judgment when interacting with agencies.
AntitrustChambers Guide to the USA
Deborah is outstanding and one of the best in the country. She is hard-working, savvy and tough.
AntitrustChambers Guide to the USA

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