Mr. O’Leary is Of Counsel in the Washington D.C. office where he focuses his practice on white collar defense, government investigations, and complex civil litigation. He has represented companies, individuals, and financial institutions in connection with investigations by the U.S. Department of Justice (the “DOJ”), the Securities and Exchange Commission, the Commodity Futures Trading Commission, the U.S. State Department’s Directorate of Defense Trade Controls, the Department of Treasury’s Office of Foreign Assets Control (“OFAC”), and other domestic and foreign regulatory and criminal authorities. Mr. O’Leary regularly counsels and defends companies and individuals in connection with issues relating to foreign bribery, money laundering, the Arms Export Control Act (“AECA”), the International Traffic in Arms Regulations (“ITAR”), and various economic sanctions programs. He alsohas extensive recent experience representing clients in connection with the DOJ Tax Division’s Offshore Compliance Initiative and investigations into the alleged manipulation of various benchmark interest and exchange rates.
Prior to joining Holland & Hart, Mr. O’Leary was an Assistant United States Attorney in the U.S. Attorney's Office for the Southern District of Florida in Miami, where he investigated and prosecuted a wide variety of federal offenses, including bank and wire fraud, identity theft, violent crimes, Medicare fraud, money laundering, currency-related offenses, and international narcotics trafficking. During his time as a federal prosecutor, Mr. O’Leary tried sixteen jury trials and argued two cases before the Eleventh Circuit Court of Appeals.
Mr. O’Leary served as a law clerk to the Honorable Cecilia M. Altonaga, United States District Judge for the Southern District of Florida and practiced for four years in the New York office of Latham & Watkins, LLP, where his litigation practice concentrated on securities matters, including representing Arthur Andersen in litigation arising from the collapse of Enron Corporation.
Mr. O’Leary is admitted to practice in New York and the District of Columbia and before the United States District Courts for the Southern and Eastern Districts of New York and the District of Columbia.
