Mary Patrice Brown

O'Melveny & Myers LLP

Mary Patrice Brown honed her litigation skills during 23 years with the US Attorney’s Office for the District of Columbia and the Department of Justice. Before joining O’Melveny, Mary Pat was a Deputy Assistant Attorney General for the Criminal Division at the US Department of Justice.

She also has held many other senior leadership positions within the Department of Justice and the US Attorney’s Office in Washington DC, including Chief of the Criminal Division at the US Attorney’s Office and head of the Justice Department’s Office of Professional Responsibility.

Over the course of her distinguished career as a federal prosecutor, she has represented the United States government in more than 100 criminal appeals and jury and bench trials.

Mary Pat is highly ranked by Chambers USA and Legal500. Chambers describes her as a an “agile thinker” who possesses “incredible credibility in town.” Chambers further highlights that Mary Pat’s clients value her “enormous experience as a line prosecutor.”


  • Private Practice:
    • Represent former corporate executive for Brazilian company in connection with US DOJ grand jury investigation into FCPA violations regarding alleged bribes to state-owned enterprise
    • Represent public and private corporations and individuals in criminal fraud, foreign corruption, arms export controls, False Claims Act, and health care fraud investigations
    • Represent individuals in Congressional investigations
    • Conduct criminal internal investigations for defense contractors
    • Represent individuals in ethical and professional responsibility investigations
    • Served as trial counsel for ERISA class action complaint
  • US Department of Justice:
    • Served as a top advisor to the Assistant Attorney General of the Criminal Division on a range of high-profile and sensitive issues, including a recent trial of a former US Senator, the revision of electronic surveillance policies, the investigation of a foreign official for laundering money in US financial institutions, and a variety of international law enforcement policy issues
    • Headed the Office of Professional Responsibility, which conducts internal investigations of allegations of professional misconduct by Department attorneys
    • As chief of the Criminal Division at the US Attorney’s Office for the District of Columbia, oversaw and directed all aspects of the prosecution of criminal cases in the US District Court for the District of Columbia, including mortgage fraud, bank fraud, export control violations, Foreign Corrupt Practices Act violations, securities fraud, asset forfeiture, and public corruption
    • Handled the negotiation of a plea agreement with a major American corporation for providing material support to a foreign terrorist organization
    • Oversaw the deferred prosecution agreement of ABN/AMRO and the prosecution of the former Riggs Bank for Bank Secrecy Act violations

Corporate & Government Experience:

  • Deputy Assistant Attorney General and a top advisor, to the Assistant Attorney General for the Criminal Division, US Department of Justice
  • Chief of the Criminal Division, US Attorney’s Office, District of Columbia
  • Head of the Office of Professional Responsibility, Department of Justice


  • District of Columbia
  • US Supreme Court
  • US Court of Appeals, Fourth and District of Columbia Circuits
  • US District Court, District of Columbia


  • Georgetown University, J.D.: member, American Criminal Law Review
  • Georgetown University, B.S., Foreign Service


  • US District Court for the District of Columbia, Special Committee on Criminal Disclosure Obligations
  • American Law Institute
  • The American Bar Association
  • Fellows of the American Bar Foundation
  • District of Columbia Bar Nominating Committee (2010)
  • US Court of Appeals of the District of Columbia Circuit Committee on Admissions and Grievances (2001-2006)
  • The Barristers, Washington, DC
  • Edward Bennett Williams Inn of Court, Washington, DC


Rate : $$$

What types of cases Attorney Mary Patrice Brown & O'Melveny & Myers LLP can handle?
O'Melveny & Myers LLP can handle cases related to laws concerning Corporate, Litigation, White Collar Crime, Privacy, Aviation. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is O'Melveny & Myers LLP located?
O'Melveny & Myers LLP is located at 1625 Eye Street, Washington, DC 20006, USA. You can reach out to O'Melveny & Myers LLP using their phone line 202-383-5376. You can also check their website or email them at [email protected].
How much would it cost to hire O'Melveny & Myers LLP?
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O'Melveny & Myers LLP
Washington 20006 DC US
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