Eric W. Sitarchuk represents clients in government investigations and white collar litigation. A veteran litigator and trial lawyer, Eric has represented clients in a wide variety of white collar criminal matters, False Claims Act (FCA) and qui tam litigation, Foreign Corrupt Practices Act (FCPA) and other complex federal investigations, and investigations and litigation brought by state Attorney General offices. Eric has also defended bet-the-company civil litigation matters. Working with major corporations and institutions, boards of directors, audit committees, and government entities, Eric has conducted numerous internal investigations and advised on the creation and implementation of corporate compliance and ethics programs. He serves as chair of the firm’s white collar and corporate investigations practice.
A fellow of the American College of Trial Lawyers, Eric has defended clients in a broad variety of criminal and civil whitecollar matters. He is also widely regarded for his False Claims Act defense work, bet-the-company litigation, and institutional crisis management.
In defending organizations and individuals during US government investigations, Eric has persuaded prosecutors to take no action and close investigations of Fortune 100 and multinational companies, large healthcare institutions, and universities, as well as prominent executives, lawyers, and public officials. He has tried numerous cases both as a former federal prosecutor and defense lawyer.
Eric also brings government service experience to his practice. He worked as an Assistant US Attorney in the Criminal Division of the US Attorney’s Office in Philadelphia. He also served as a Special Assistant US Attorney in the US Attorney’s Office in Washington, DC, where he led the criminal investigation of federal law enforcement’s handling of the standoff at Ruby Ridge, Idaho, and its repercussions.
Eric is a frequent lecturer on topics such as FCA litigation and international investigations.
Representative Matters
False Claims Act/Qui Tam Litigation
Criminal Defense
Healthcare Fraud and Abuse
International Investigations
Government Contracts Fraud
Antitrust
Securities Fraud
Official Corruption
Tax
Miscellaneous
Listed, Lawdragon, 500 Leading Litigators in America, Philadelphia: White Collar, Investigations, Litigation (2025)
Stand-out Lawyer, Thomson Reuters (2023)
Recognized, Investigations; Business Crime Defense, Who’s Who Legal (2021–2023)
Recommended, Dispute resolution: Corporate investigations and white-collar criminal defense, The Legal 500 US (2020–2024)
Recommended, Government: States Attorneys General, The Legal 500 US (2023, 2024)
Client Service All-Star, BTI Consulting Group (2019)
Band 1, Litigation: White-Collar Crime & Government Investigations, Pennsylvania, Chambers USA (2005–2024)
Ranked, False Claims Act, Nationwide, Chambers USA (2022–2024)
Recommended, Dispute Resolution - White-Collar Criminal Defense, The Legal 500 US (2016–2019)
Fellow, American College of Trial Lawyers
Listed, The Best Lawyers in America, Lawyer of the Year, Qui Tam Law, Philadelphia (2019, 2025)
Listed, The Best Lawyers in America, Lawyer of the Year, Bet-the-Company Litigation (2021, 2023)
Listed, The Best Lawyers in America, Lawyer of the Year, Health Care Law Philadelphia (2020)
Listed, The Best Lawyers in America, Bet-the-Company Litigation, Philadelphia (2008–2025)
Listed, The Best Lawyers in America, Heath Care Law, Philadelphia (2008–2025)
Listed, The Best Lawyers in America, Criminal Defense: White Collar, Philadelphia (2008–2025)
Listed, The Best Lawyers in America, Commercial Litigation, Philadelphia (2008–2025)
Listed, The Best Lawyers in America, Qui Tam Law, Philadelphia (2008–2025)
Recognized, Benchmark Litigation Star (2010–2023)
Best of the Bar, White Collar, Philadelphia Business Journal (2018)
Life Sciences Star, White-Collar/Govt. Investigations, LMG Life Sciences Awards Americas (2023, 2024)
Life Sciences Star, Fraud and Abuse (2012–2015); Non-IP Litigation and Enforcement, LMG Life Sciences Guide (2016–2022),
Recognized, BTI Client Service All-Star (2015)
Winner, Corporate Livewire Global Awards: Government Investigations - Pennsylvania, USA (2015)
Recognized, Pennsylvania Super Lawyers
Recognized, Law360 Healthcare MVP (2012)
Member, American Bar Association, Criminal Justice Section White Collar Crime Committee