A former Assistant United States Attorney, Justin Dillon  now uses his years of litigation and investigative experience to defend clients in complex, high-stakes white-collar criminal and campus discipline cases.  Justin combines a meticulous approach to investigating the facts with a deep knowledge of criminal and administrative procedure to vigorously protect his clients’ futures and reputations.

Justin Dillon

Justin represents people in some of the toughest situations they will ever face.  He has gained nationwide attention for his work representing students and professors in campus misconduct cases.  While many of these cases are successfully resolved on campus, Justin is not afraid to take it all the way to court—and he is the first lawyer in the country to win summary judgment against a university in a campus sexual assault case.  In his criminal defense practice, Justin has helped people accused of a wide range of federal white-collar crimes, guiding his clients through the process and advocating fiercely on their behalves.

Immediately before joining KaiserDillon PLLC, Justin spent five and a half years as a federal prosecutor in Washington, DC, where he led more than 100 Grand Jury investigations, tried more than 60 criminal cases, and handled more than a dozen appeals.

Justin has also been published or quoted in more than a dozen national newspapers and magazines, including The Wall Street JournalThe New York TimesThe Washington PostThe Los Angeles TimesThe Nation, and The Weekly Standard.  He has been invited to speak before organizations including the American Bar Association, the National Association of Criminal Defense Lawyers, the Association of Title IX Administrators, the Higher Education Consultants Association, the Colorado Bar Association, the Virginia Association of Criminal Defense Lawyers, the Virginia State Bar, the District of Columbia Bar, and Harvard Law School.

Justin is a member of the Edward Bennett Williams Inn of Court, an invitation-only professional organization devoted to white-collar practice, and the John Carroll Society.  He teaches trial advocacy at Harvard Law School and has guest-lectured on criminal law at Harvard and the University of Maryland. He serves on the Continuing Legal Education Committee of the D.C. Bar and is a member of the Board of Directors of Families Advocating for Campus Equality, a nonprofit organization devoted to bringing greater due process protections to campus disciplinary proceedings.

Justin is licensed to practice law in the District of Columbia and the Commonwealth of Virginia. He has been recognized by Best Lawyers© in the category Criminal Defense: White-Collar.


  • J.D., Harvard Law School. Editor, Harvard Law Review
  • B.A., Duke University, magna cum laude

Government Service

  • Assistant United States Attorney, District of Columbia
  • Trial Attorney, Housing & Civil Enforcement Section, Civil Rights Division, United States Department of Justice
  • Clerkship, The Honorable David M. Ebel, United States Court of Appeals for the Tenth Circuit