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Dan Himmelfarb

Dan Himmelfarb

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Mayer Brown’s Supreme Court & Appellate practice recognized among the “elite of the elite”

– Reuters Special Report

"a practitioner who brings to his work a ‘deep commitment to client interests, responsiveness and shared purpose’ complemented by ‘extraordinary legal thinking’"

Chambers USA

Dan Himmelfarb is a partner in Mayer Brown’s Washington DC office. He is a member of the firm’s Supreme Court & Appellate practice, which for more than ten straight years has been ranked in one of the top two tiers nationally by Chambers USA and The Legal 500 United States.

Dan has filed more than 200 merits and petition-stage briefs in the US Supreme Court and scores of briefs in other federal and state appellate courts throughout the country. He has argued 50 cases in 12 different appellate courts, including 12 in the US Supreme Court and 14 in the Second Circuit. Dan has particular experience in the areas of torts, contracts, administrative law, criminal law, constitutional law and statutory interpretation. He has argued appeals involving the Class Action Fairness Act, the Clean Air Act, the Comprehensive Environmental Response, Compensation and Liability Act, the Fair Labor Standards Act, the Federal Employers Liability Act, the National Labor Relations Act and the Racketeer Influenced and Corrupt Organizations Act.

Dan's appellate work has earned him recognition in Chambers USA, The Legal 500 United States, The National Law Journal's "Appellate Hot List," The Best Lawyers in America and Washington DC Super Lawyers. Reuters has identified him as one of "the elite of the elite" among those who practice in the Supreme Court.

Before joining Mayer Brown in 2007, Dan served for five years as an Assistant US Attorney in the Southern District of New York and then for five years as an Assistant to the US Solicitor General. In 2005, he received the US Attorney General’s Distinguished Service Award. Before joining the Department of Justice, Dan was in private practice for three years in New York. Prior to that, he had judicial clerkships with Judge J. Michael Luttig of the US Court of Appeals for the Fourth Circuit and Associate Justice Clarence Thomas of the US Supreme Court.

Dan is a co-author of the tenth edition of Supreme Court Practice, published by BNA Books in 2013, and the first and second editions of Federal Appellate Practice, published by BNA Books in 2008 and 2013.

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