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Mark E. Rooney is an Associate in the Washington, DC office of Buckley Sandler LLP, focusing on consumer financial services litigation. He has represented financial institutions in civil litigation involving the Fair Housing Act (FHA), Equal Credit Opportunity Act (ECOA), Fair Debt Collection Practices Act (FDCPA), Truth in Lending Act (TILA), False Claims Act (FCA), and various state statutory and common law claims, primarily relating to mortgage lending and servicing practices. He has extensive experience defending banks in FHA cases brought by municipalities seeking generalized damages from foreclosures. 

A member of the firm’s eDiscovery Committee, Mr. Rooney regularly manages all aspects of electronic discovery in complex litigation and in response to government investigations. He assists clients in crafting cost-effective discovery solutions, including the use of negotiated confidentiality and clawback agreements, and by overseeing third-party document vendors and managed review teams. Notably, as part of the Buckley Sandler litigation team representing the Navajo Nation in its landmark lawsuit against the United States, he oversaw the tribe’s successful effort to meet its discovery obligations en route to a $554 million settlement over trust management issues. 

Mr. Rooney received his J.D. (magna cum laude, Order of the Coif) from the University of Miami School of Law, where he was the Senior Articles Editor of the University of Miami Law Review and a teaching assistant in constitutional law. He earned his B.A. from Syracuse University (cum laude). Before law school, Mr. Rooney served as deputy press secretary to then-Senator Joseph R. Biden, Jr.

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  • J.D., University of Miami, 2006 (magna cum laude)
  • B.A., Syracuse University, 1997 (cum laude)


  • District of Columbia
  • New York
  • U.S. District Court, District of Columbia
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Northern District of Indiana

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