"a brilliant and open-minded legal thinker, an expert written and oral communicator, and a business-savvy and trusted team partner"
The Legal 500 United States (2012)
Dan Himmelfarb is a partner in Mayer Brown’s Washington DC office and a member of the firm's Supreme Court & Appellate practice. He is co-leader of Mayer Brown's Washington DC Litigation practice, as well as the hiring partner in that office.
Dan has filed more than 200 merits and petition-stage briefs in the US Supreme Court and has argued 38 cases in nine different appellate courts, including 11 in the US Supreme Court and 13 in the Second Circuit. Dan has particular experience in the areas of torts, administrative law, criminal law, constitutional law and statutory interpretation. His appellate work has earned him recognition in The Legal 500 United States (2009, 2010, 2011, 2012), The National Law Journal's "Appellate Hot List" (2010, 2011, 2013), The Best Lawyers in America (2012, 2013, 2014) and Washington DC Super Lawyers (2013). Dan is a co-author of Mayer Brown’s Federal Appellate Practice treatise, published by BNA Books in 2008.
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.