Attorneys At Law
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Sean J. Hartigan


Tysons Corner Office
8000 Towers Crescent Drive, Suite 900
Tysons Corner, VA 22182
Phone: (703) 847-6300
Fax: (703) 847-6312

Mr. Hartigan practices exclusively in the areas of federal and international law, specializing in white collar defense and compliance counseling.  In the international compliance context he concentrates on the Foreign Corrupt Practices Act (FCPA) and in the domestic context on the False Claims Act, Procurement Integrity Act, Federal Acquisition Regulation (FAR), and other federal statutes and regulations governing the conduct of government contractors and their employees.  Mr. Hartigan has represented corporate clients in the course of numerous internal and government investigations arising with respect to these federal regulatory frameworks, including before the Department of Justice, Securities and Exchange Commission, and Office of the Inspector General.  With bilingual skills, he has conducted many such investigations in Spanish.  Mr. Hartigan has also led teams in planning and conducting FCPA compliance audits and program reviews, and provides compliance counseling in this area.  Mr. Hartigan has substantial in-house experience with a major government contractor in the areas of international contract negotiation, investigation of potential voluntary and mandatory disclosures under the FAR, and analysis of FAR clauses for flow-down to business partners.


University of Michigan Law School, J.D., 2003; cum laude; Book Review Editor, Michigan Law Review
University of Michigan - Gerald R. Ford School of Public Policy, M.P.P., 2003
Dartmouth College, B.A., 1994

Bar Admissions

District of Columbia, 2005
State of Florida (inactive), 2004

*Not yet admitted in the Commonwealth of Virginia

Court Admissions

U.S. District Court for the District of Columbia

Judicial Clerkships

Hon. Jacques L. Wiener, Jr., U.S. Court of Appeals, Fifth Circuit 2003 - 2004


Contributor, Practicing Under the U.S. Anti-Corruption Laws, Aspen Book Publishers, 2013 Edition, May 2013

“Foreign Corrupt Practices Act: Central District of California Rejects Argument that State-Owned Corporations Can Never Be ‘Instrumentalities’ of Foreign Governments,” Business Law Today, June 16, 2011

“Denials of Summary Judgment Can’t be Appealed After Trial,” American Bar Association Commercial & Business Litigation Committee Newsletter, March 24, 2011

“Sharing is Caring in DOJ’s View of FCPA Cooperation,” Law360, December 7, 2010

“U.S. v. Bourke FCPA Prosecution: DOJ Litigates Willful Blindness Theory and Prevails,” American Bar Association Section of Litigation Criminal Litigation Committee, August 2009