Ms. Marvin practices in the areas of commercial litigation, international disputes, financial fraud and government relations and public policy. She has represented domestic and foreign clients in complex commercial litigation at all levels in state and federal courts.  

Ms. Marvin has experience in a wide range of corporate and litigation matters, including multinational business disputes, contract disputes, U.S. sanctions laws administered and enforced by the Department of Treasury’s Office of Foreign Assets Control and representation of foreign Liquidators in the U.S.  In addition, Ms. Marvin has extensive experience assisting individuals and organizations with contract review and negotiations and is often turned to for advice by organizations that do not have inside counsel.

Ms. Marvin represents Guantanamo detainees in litigation seeking their release, including challenges to conditions of confinement, force-feeding practices and the legality of continued detention after the end of the war in Afghanistan. 

Ms. Marvin also volunteers her time on behalf of the Washington Lawyers Committee for Civil Rights and Urban Affairs, most recently co-authoring an amicus brief on behalf of a group of residents of the District of Columbia, current and former District of Columbia Public Schools parents, and organizations and individuals who are leaders in the effort to ensure that every child in the District of Columbia has a quality public education.  The brief argued that D.C. Home Rule permits the D.C. Council to legislate in the area of public education.

Professional Affiliations

  • Women’s Bar Association of the District of Columbia (Co-chair, Judicial & Executive Endorsements Committee)
  • Barrister, George Washington American Inn of Court (Program Chair, 2009-2010; Vice-President, 2010-2011)


  • Judicial Law Clerk to the Honorable Anna Blackburne-Rigsby, Superior Court of the District of Columbia (now District of Columbia Court of Appeals Judge)
  • Director of Legislative Affairs for Voters for Choice, a national women’s rights organization
  • Law Clerk, Service Employees International Union (SEIU)

Representative Matters

  • Represented Saudi family-owned conglomerate Ahmad Hamad Algosaibi & Brothers in development of global strategy and in multiple cases in the United States.
  • Represented Kuwaiti nationals detained at Guantanamo Bay before the Periodic Review Board and in U.S. litigation challenging indefinite detention without charge.
  • Represented an Argentine industrial concern against a major U.S. manufacturer in a breach of contract and misappropriation of trade secrets action.
  • Represented a major international non-profit organization and recently assisted with its expansion in the United States.
  • Represented Guantanamo detainee, Jihad Dhiab, in litigation brought to challenge the Government’s force-feeding practices.
  • Successfully represented a company that provides class action claims filing services in litigation seeking to enjoin our client from continuing to represent members of the class. 

Publications & Events

In the News


  • American University's Washington College of Law (J.D., cum laude, 2003)
  • American University (B.A. 1998)

Bar Admissions

  • District of Columbia
  • Maryland
  • New York
  • U.S. District Court for the District of Columbia
  • U.S. District Court for Maryland
  • U.S. Court of Appeals for the D.C. Circuit
  • U.S. District Court for the Southern District of New York