The Hon. Juan G. Villaseñor (Ret.) serves as Counsel for the Business & Commercial Litigation and White Collar & Investigations practice groups at FBT Gibbons. Because of his extensive experience as a District Court Judge and former federal prosecutor, Judge Villaseñor brings valuable insights to FBT Gibbons and its clients facing complex litigation and high-stakes matters.
Before joining the firm, Judge Villaseñor served for eight years as a District Judge in the Eighth Judicial District in Colorado. Appointed by Governor John Hickenlooper in 2018 as the first Latino to serve as a District Court Judge in the Eighth Judicial District, Judge Villaseñor brings over two decades of legal experience to the firm. Throughout his judicial service, he presided over a broad range of complex civil, commercial, criminal, and probate matters. He presided over more than 55 jury trials and thousands of bench trials and evidentiary hearings. Judge Villaseñor also gained expertise in electronic-surveillance and DNA evidence matters, authoring noteworthy opinions on such issues. Judge Villaseñor also presided over the district’s highly successful Wellness Court, a multidisciplinary probation court designed to serve individuals with significant mental health illnesses and substance use disorders through evidence-based treatment, accountability, and community support. In that capacity, Judge Villaseñor worked closely with prosecutors, defense counsel, probation officers, treatment providers, law enforcement, and mental health professionals in a collaborative approach that promotes public safety while improving long-term outcomes for participants. His judicial experience reflects a practical understanding of complex legal issues, stakeholder collaboration, and innovative approaches to solving challenging disputes.
Before his appointment to the bench, Judge Villaseñor was an Assistant United States Attorney in the United States Attorney’s Office for the District of Colorado. There, he investigated, prosecuted, and tried matters involving complex issues of trespass on federal property, False Claims Act, commercial and financial claims by the government, employment discrimination, and constitutional law. He also investigated and prosecuted criminal matters.
During his tenure at the Justice Department, Judge Villaseñor worked in the Office of the Pardon Attorney, as part of the Clemency Initiative, where he provided recommendations to the Pardon Attorney, the Deputy Attorney General, and the President of the United States on applications for commutation of sentence submitted by federal prisoners convicted of drug-possession or drug-distribution offenses. His work led to five sentence commutations.
Throughout Judge Villaseñor’s career he has handled hundreds of appeals as an attorney and a judicial officer. At the Tennessee Attorney General’s Office, for example, he specialized in appellate practice and argued over 60 cases dealing with civil rights, dependency and neglect, child support, and workers’ compensation. At the United States Attorney’s Office, he also litigated many appeals in the Tenth Circuit. And as a district judge, he presided over appeals over lower courts and administrative boards and commissions.
Judge Villaseñor began his career as the Justice William J. Brennan First Amendment Fellowship Attorney with the American Civil Liberties Union in New York, where he specialized in First Amendment litigation in state and federal courts throughout the United States.
District Judge – Larimer County, Colorado, 2018 – 2026
Colorado Supreme Court’s Evidence Rules Committee, 2019 – Present
Board Member – Colorado Medical Board, Department of Regulatory Agencies, 2017 – 2018
Assistant United States Attorney – United States Attorney’s Office for the District of Colorado, 2008 – 2018
Clemency Initiative – U.S. Department of Justice’s Office of the Pardon Attorney, 2014 – 2016
Assistant Attorney General – Tennessee Attorney General’s Office, 2003 – 2008
Justice William J. Brennan First Amendment Fellowship Attorney – American Civil Liberties Union, 2002 – 2003
Litigated Cases
Judicial Decisions
Vanderbilt University Law School, J.D., 2001
Duke University School of Law, LL.M. in Judicial Studies, 2023
St. John’s College, Annapolis, A.B., 1997
U.S. District Judge William J. Haynes, Jr., in the U.S. District Court for the Middle District of Tennessee, 2001 – 2002
Larimer County Bar Association, Present
Colorado Hispanic Bar Association, Board Member, 2013 – 2015; Chair, Nominations and Endorsements Committee, 2013 – 2014
Faculty of Federal Advocates, Board Member, 2014 – 2018
National Association of Assistant United States Attorneys, 2009 – 2015
Hispanic National Bar Association, 2013 – Present
Rhone Bracket American Inn of Court, 2010 – 2012
Volunteer Judge, Colorado Bar Association, High School Mock Trial, Northern Colorado Regional Tournament, Present
Mentor, Law School…Yes We Can Mentorship Program, 2014 – 2018
Federal Elections Monitor, U.S. Department of Justice, Civil Rights Division (In November 2012, he was a monitor in Denver County and in November 2016 in Lehigh County, Pennsylvania)
Translator and attorney, Greeley Legal Night, 2012 – 2018
Interviewer, Vanderbilt University Law School, Alumni Interview Program, 2008 – Present