Mark H. Tuohey

Of Counsel

Washington, D.C.
T +1.202.861.1654
F +1.202.861.1783


Long considered one of Washington, D.C.’s most prominent white collar defense attorneys, Mark Tuohey boasts a distinguished, 45-year career in both public service and private practice. He enlists his solid reputation and significant experience for BakerHostetler’s White Collar, Investigations and Securities Enforcement and Litigation Team, representing domestic and international companies in white collar and regulatory investigations, as well as individuals and corporate officers during trials and investigations. Mark concentrates on corporate white collar criminal matters, including corporate compliance and congressional oversight investigations, state and local government regulatory advice, and arbitration and mediation.

Mark recently completed service as the first Director of the Mayor of Washington, D.C.’s Office of Legal Counsel, during which time he provided legal advice to Mayor Muriel Bowser and her cabinet on issues ranging from law enforcement and education to energy and economic development, while also overseeing the legal work of the District of Columbia agency counsel. Prior to that appointment, Mark spent many years as a partner and litigator at several Washington, D.C., law firms. Additionally, he is a former federal prosecutor, having served as an Assistant U.S. Attorney, Special Counsel to the Attorney General, and, on occasion, as a special counsel appointed by the government to conduct investigations into public policy issues, including policing, official corruption and rule of law limitations. Mark also served as an advisor to the Independent Commission on Policing in Northern Ireland.

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Mark's accomplishments -- among them, serving as Chair of the District of Columbia Sports and Entertainment Commission, which oversaw the return of Major League Baseball to Washington, D.C. -- make him a respected speaker and writer. Former president of the District of Columbia Bar and a Fellow of the American College of Trial Lawyers, Mark is a thought leader in the areas of trial practice, corporate and congressional investigations, and legal ethics. He is routinely selected to Best Lawyers in America® (in the areas of business litigation and white collar criminal defense) and other national and international lists of preeminent lawyers. In 2000, Mark was selected as "Washington Lawyer of the Year" by the D.C. Bar Association, and, in 2006, he was named "Washingtonian of the Year" by Washingtonian Magazine.

Recognitions and Memberships


  • Martindale-Hubbell: AV Preeminent
  • Fordham Law Alumni Association Medal of Achievement (2013)
  • Washingtonian Magazine: "Washingtonian of the Year" (2006)
  • Bar Association of the District of Columbia: "D.C. Lawyer of the Year" (2001)
  • International Who's Who of Business Crime Lawyers
  • Top 100 Most Influential Lawyers in Washington Region
  • Irish America: Top 100 Irish-American Lawyers (2008 to present)


  • American College of Trial Lawyers: Fellow
  • American Bar Association
  • American Law Institute
  • The D.C. Bar
    • President (1993 to 1994)
    • Board of Governors (1987 to 1993)


  • D.C. Police Foundation: Co-Chair
  • Fordham University: Trustee Emeritus
  • The Catholic University of America: Trustee Emeritus
  • Gonzaga College High School: Trustee Emeritus
  • Washington Jesuit Academy: Trustee Emeritus
  • Archbishop Carroll High School: Trustee

Prior Positions

  • Director of the Mayor of Washington, D.C.'s Office of Legal Counsel (2015 to 2018)
  • Chair of the D.C. Sports and Entertainment Commission (2004 to 2007)
  • U.S. Department of Justice
    • Special Counsel to the U.S. Attorney General (1977 to 1979)
    • Assistant U.S. Attorney (1972 to 1977)


  • U.S. Supreme Court
  • District of Columbia
  • New York


  • J.D., Fordham University School of Law, 1973
  • B.A., St. Bonaventure University, 1968