Grant Sullivan

Grant Sullivan has served on the Colorado Court of Appeals since January 2024. Before that he was a trial and appellate litigator in the Colorado Attorney General's Office, working on constitutional law, voting rights, election law, tax, administrative law and appeals. He earlier practiced with the Denver office of a national firm, served as a Supreme Court Fellow with the National Association of Attorneys General, and clerked on the Colorado Court of Appeals and the Colorado Supreme Court. He holds a law degree from the University of Colorado Law School and a business degree from the University of Texas at Austin. He serves on the Judicial Department's Reclassification Review Board, an Appellate Rules Subcommittee and a planning committee for the annual Colorado Judicial Conference.

The State Commission on Judicial Performance voted 9 to 0 that he meets performance standards, with one commissioner absent and one vacancy on the commission. The commission found his written opinions "consistently well-reasoned, fair, and thoughtfully articulated, demonstrating a strong command of the law and clear judicial reasoning." It notes "a strong and confident transition into the role of appellate judge" and writes that he has "proactively established systems to manage workload efficiently".

The commission writes that "Judge Sullivan was observed to be clear, open, and highly effective in communication, and consistently maintained courtroom decorum." It adds: "While appropriately assertive in managing proceedings, the judge’s tone and demeanor remained balanced, reflecting impartiality and professionalism."