Daniel Suleiman is a zealous advocate who represents institutions and individuals in high-stakes white collar investigations and litigation matters and has a proven track record of obtaining declinations and other highly successful outcomes for his clients. Chambers USA notes that Daniel “leverages his experience” as a senior official in the Criminal Division of the U.S. Department of Justice (DOJ) to “expertly advise major corporations and individuals in complex white-collar investigations and litigation.”
Co-Chair of Covington’s Aerospace, Defense, and National Security group, Daniel is an expert in procurement fraud matters, having represented numerous leading government contractors in parallel criminal and civil False Claims Act investigations. He also has deep experience representing clients across industries in investigations involving the U.S. Foreign Corrupt Practices Act (FCPA), federal cybersecurity requirements, the federal Cost Accounting Standards, the Lacey Act, the Endangered Species Act, the mail and wire fraud statutes, and sanctions and federal export control laws. He serves as Co-Chair of the American Bar Association's White Collar Crime Subcommittee for the D.C. Region.
Daniel has first-chaired multiple felony trials to verdict and served as lead counsel in numerous highly publicized matters, including United States v. Comunicaciones Celulares S.A. d/b/a Tigo Guatemala, the largest FCPA case of 2025; United States v. Envigo RMS LLC, the largest criminal Animal Welfare Act case in history; DOJ and SEC’s investigation of Booz Allen Hamilton, which resulted in a declination of the criminal investigation and one of the largest civil procurement fraud settlements in history; and the National Transportation Safety Board’s investigation of Asiana Airlines following the crash of flight 214 at San Francisco International Airport.
Daniel speaks fluent French and conversational Spanish and regularly handles investigations with an international dimension.
He maintains an active pro bono practice, often representing indigent defendants in federal and state court, and he writes frequently on issues of criminal law, having published opinion pieces in the Wall Street Journal, Baltimore Sun, National Law Journal, Bloomberg Law, Law360, and other publications.
Daniel previously served as Deputy Chief of Staff & Counselor to Assistant Attorney General Lanny A. Breuer in the Criminal Division of the U.S. Department of Justice.
Back
