Over the course of his career, Andrew Frey has earned the esteem of clients and colleagues alike, both as a successful appellate litigator and as a sophisticated legal thinker and strategist. Chambers USA (2007) notes that "In the pantheon of appellate practitioners, Andrew Frey occupies a vertiginous position. . . . [He is a]cclaimed throughout the USA as 'utterly phenomenal' before the Supreme Court . . ."

Andy focuses on US Supreme Court and federal and state appellate practice. He is especially known for his imaginative and successful punitive damages defense efforts. In the US Supreme Court alone, he has been responsible for hundreds of briefs on the merits, a similar number of certiorari etitions, and several thousand briefs in opposition to certiorari petitions. He has argued 65 cases in the US Supreme Court. He has also argued numerous cases in the federal courts of appeals and in the supreme courts of 12 states. Andy's advice on appellate litigation strategy is widely sought and valued.

Prior to joining Mayer Brown in 1986, Andrew served as a Deputy Solicitor General in the US Department of Justice (1973-1986) and as Assistant to the Solicitor General (1972-1973). Previously, he engaged in private law practice in Washington, DC, served as Special Counsel to the Governor of the US Virgin Islands (1963-1965), and, from 1962 to 1963, served as Law Clerk to The Honorable George T. Washington of the United States Court of Appeals for the District of Columbia Circuit. Andrew's professional accomplishments have been recognized with such prestigious awards as: the Burton Award for Legal Achievement (2005); the Presidential Award for Meritorious Service (1985); the Attorney General's Distinguished Service Award (1980); and the John Marshall Award from the US Department of Justice (1975). In 2006, Andrew was included on a list of the 100 Most Influential Lawyers in the United States. He is regularly included in rankings of top lawyers in the fields of appellate practice and "bet the company cases."

Andy Frey is a co-author of Mayer Brown's Federal Appellate Practice treatise, published by BNA Books in December 2008.