A former federal prosecutor with extensive trial and appellate experience, Greg Marshall represents companies and individuals defending complex and sensitive government enforcement, white collar criminal, and civil litigation matters. Greg also conducts internal investigations and advises clients on compliance issues. Greg is nationally recognized for his practice by Chambers USA, Best Lawyers, and Super Lawyers. Clients and peers have described him as “excellent” and a “fantastic advocate,” “a true trial lawyer” who “knows how to dissect complicated problems.”

Greg has assisted clients in the defense, technology, healthcare, financial services, export, construction, and education sectors. He has defended investigations and cases involving the False Claims Act, Sherman Act, Foreign Corrupt Practices Act, wire and mail fraud statutes, export control laws, and allegations of healthcare, corporate, securities, and tax fraud. He regularly handles matters involving the U.S. Department of Justice, the U.S. Securities and Exchange Commission, federal agency inspectors general, state attorneys general, and other federal and state regulatory agencies.

Greg joined the firm after spending more than 12 years as an Assistant U.S. Attorney in the U.S. Attorney’s Office for the District of Columbia, where he served during his last two years as deputy chief of the federal Criminal Division. In that position, Greg supervised approximately 75 senior prosecutors handling all types of federal investigations and cases, including international and domestic terrorism, healthcare fraud, corporate and securities fraud, export enforcement, tax fraud, money laundering, public corruption, and espionage. He also served in the D.C. U.S. Attorney’s Office as acting chief of the Asset Forfeiture Unit, as senior litigation counsel, and as a line prosecutor in the Fraud and Public Corruption Section, the Organized Crime and Narcotics Trafficking Section, and the Sex Offense and Domestic Violence Section. During his tenure as a prosecutor, Greg directed scores of grand jury investigations, conducted approximately 45 trials, and argued eight direct appeals. He earned nine U.S. Department of Justice special achievement awards for superior performance.

Greg has served on the adjunct faculty at the University of Virginia School of Law, where he taught Trial Advocacy, and has guest lectured on white collar criminal defense issues at The George Washington University Law School. Prior to becoming a federal prosecutor, he clerked for Chief Judge Joseph W. Hatchett of the U.S. Court of Appeals for the Eleventh Circuit and worked at an international law firm in New York City. Before attending law school, Greg taught for two years at a public junior high school in Manhattan.

Bar Admissions

• District of Columbia, 2012
• New York, 1995
• Connecticut, 1994

• United States Court of Appeals, 10th Circuit
• United States Court of Appeals, 11th Circuit
• United States Court of Appeals, District of Columbia Circuit
• United States District Court, District of Columbia
• United States District Court, District of Maryland
• United States District Court, District of Connecticut
• United States District Court, Northern District of Illinois

Education

• Cornell University, J.D., 1993
• Columbia University, School of International and Public Affairs, M.P.A., 1994
• Bucknell University, B.A., 1988, cum laude