Brandon Regan

(703) 749-1000

Brandon Regan is an associate in Watt Tieder’s McLean, Virginia office concentrating his practice in the areas of construction, government contracts and commercial litigation. Brandon is an experienced litigator with nearly a decade of courtroom experience.

Before joining Watt Tieder, Brandon served as a Judge Advocate for four years in the U.S. Marine Corps, serving as a line prosecutor, Staff Judge Advocate, and Senior Complex Trial Counsel.  In these billets Brandon litigated several high-profile cases as first-chair counsel with sustained success. Brandon now serves as a Judge Advocate in the U.S. Marine Corps Reserves and holds the rank of Major (O-4).

After leaving active-duty Brandon served for four years as an Assistant United States Attorney (AUSA) in the District of Columbia U.S. Attorney’s Office.  As an AUSA Brandon successfully prosecuted over 400 cases, including several federal jury trials.


  • Eastern Judicial Circuit Prosecutor of the Year (2016)
  • Navy-Marine Corps Litigator of the Year (2017)
  • S. Attorney’s Award for Creativity and Innovation in 2021

Areas of Practice

  • Construction
  • Government Contracts
  • Commercial Litigation



  • University of Baltimore School of Law, J.D., magna cum laude
  • University of Maryland, B.A., 2010

Bar Admissions

  • Maryland
  • Virginia

Court Admissions

  • U.S. District Court for the District of Columbia
  • Superior Court for the District of Columbia
  • Maryland Court of Appeals