D. Patrick  Lewis

D. Patrick Lewis

TEL 202.689.1923
CELL 703.638.9272


In a world where nearly everything is electronic, Patrick Lewis is no stranger to eDiscovery and has developed considerable knowledge and appreciation for the value it plays in the litigation process. With substantial experience on large, complex cases containing vast amounts of data, Patrick particularly excels at data mapping and identifying specific needs to support litigation strategy.

With 24 years’ experience, Patrick has become an ACEDS certified eDiscovery lawyer with experience in developing and delivering complex eDiscovery solutions. His leadership, management, and business development training, coupled with his ability to lawyer from a very human perspective, enable him to work effectively with all stakeholders in the eDiscovery lifecycle to strategically manage both the technical and legal aspects of the discovery process. With a talent for identifying obstacles and landmines, Patrick makes it his job to ease the burden of the litigation process and achieve the best outcome for the firm’s clients.

Having successfully managed large teams of attorneys and litigation support staff, Patrick has been responsible for coordination between law firm attorneys, staffing agencies and data hosting and processing vendors on a variety of cases including HSR second requests, SEC anti-trust enforcement actions, Federal False Claim Act enforcement, Foreign Corrupt Practices Act cases, internal corporate investigations, federal Multi-District Opioid litigation, and pro bono litigation involving victims of sex trafficking, etc.

In addition to his eDiscovery practice, Patrick has substantive litigation experience and has litigated cases at the local, state, and federal level. Prior to working in eDiscovery, he served as General Counsel at The Eleison Group, LLC, the Deputy Director for Veterans Outreach for a national political campaign, and Corporate Counsel for Advanced Technology Systems, Inc. to name a few of his previous positions. He also served in the United States Army from 1988-1992. As a dual citizen of the U.S. and Republic of Ireland who’s authorized to work in the European Union, Patrick is fluent in French and Irish, and conversant in Spanish and Italian.

When he’s not managing and mining data, Patrick can be found enjoying time with his wife and five children, playing the guitar and bodhrán (an Irish drum), or taking in the outdoors. As a history buff, he may also be found digging into a good book on history.

  • Pace University School of Law, w/Environmental Law Certificate, J.D., 1998
  • George Mason University, B.A. in History, 1994
  • U.S District Court, Eastern District of Virginia, 2003
  • U.S. District Court, District of Columbia, 1999
  • District of Columbia, 1999
  • District of Columbia Bar Association
  • Hopewell House for Independent Living, Board Member, 2018-Present
  • Northern Virginia Regional Commission, appointed by the Fairfax County Board of Supervisors, 2003-2005
  • Fairfax County Civil Service Commission, Commissioner, 2005-2013