Halligan LLC is a private family law firm serving the residents of Arvada and the surrounding areas. It provides divorce representation for a wide variety of cases, including those involving businesses, large estates, and multistate litigation. It also assists with appeals, post-decree modifications, and post-trial motions. The firm additionally handles cases relating to the division of property as well as children and dependents. Founding attorney Gavin Halligan was named to the National Academy of Family Attorneys' Top 10 Ranking in 2017.