Craig Singer concentrates his practice in three broad areas: professional liability, criminal defense, and appellate work.

Mr. Singer has represented numerous lawyers and law firms, including some of the nation's largest firms, in federal and state courts, government investigations, and arbitration proceedings in many jurisdictions around the country, including New York, Pennsylvania, Texas, Ohio, Oklahoma, Minnesota, Georgia and Kansas. He has played a significant role in developing and litigating defenses to claims commonly brought against lawyers and law firms, including defenses based on in pari delicto, elements of aiding and abetting claims, attorney-client duties, proximate causation and damages.

Mr. Singer has extensive experience in federal criminal procedure, and is co-author of a treatise, Federal Criminal Discovery, published by the American Bar Association in August 2011. As described by the ABA, Federal Criminal Discovery "serves as an invaluable resource for judges, academics, prosecutors, and defense lawyers by providing an exhaustive discussion on the statutory and constitutional bases for discovery, and by covering the existing law fairly while examining both sides of the issues."

In 2008-2009, Mr. Singer was a key player — and the principal brief writer — on the Williams & Connolly LLP team that defended the late U.S. Senator Ted Stevens against federal criminal charges in the District of Columbia. Mr. Singer developed and argued many of the legal theories in that landmark case, which resulted in the government's dismissal of all charges after disclosure of prosecutorial misconduct. In his criminal defense practice, Mr. Singer has also represented individuals and entities in criminal cases or investigations relating to various alleged offenses including mail and wire fraud, RICO, antitrust, environmental crimes and securities fraud.

Mr. Singer's appellate work is wide-ranging. In the last several years, he has argued appeals in the U.S. Courts of Appeals for the Second and Eighth Circuits and in state appeals courts in Pennsylvania and Maryland. He recently won an appeal he argued in the U.S. Court of Appeals for the Eighth Circuit on an issue of federal subject matter jurisdiction in a criminal case. He has also represented a foreign state-owned oil and gas company in a federal appeal regarding an international injunction, and, in more general legal matters, represented a foreign government in mutual legal assistance treaty negotiations with the U.S. State Department and U.S. Department of Justice. Mr. Singer has filed pro bono amicus briefs in the Supreme Court and other courts. He commonly supervises Williams & Connolly associates in pro-bono appeals in the Maryland Court of Special Appeals.

Born in Washington, D.C., Mr. Singer grew up in suburban Philadelphia. He earned his B.A. from Wesleyan University in 1990, taking off one semester to teach pre-school in Stamford, Connecticut. Mr. Singer earned his J.D., with Highest Honors, from the University of Chicago Law School, where he was Articles Editor of The University of Chicago Law Review. After law school, Mr. Singer clerked for Chief Judge Abner J. Mikva of the U.S. Court of Appeals for the District of Columbia Circuit and then Associate Justice John Paul Stevens of the U.S. Supreme Court. He joined Williams & Connolly in 1996.