Erin B. O’Neill

Associate Attorney

Practice Areas

  • Civil Litigation
  • Employment Litigation
  • Construction Litigation
  • Insurance and Insurance Defense
  • Law Enforcement Representation
  • Determined and skilled in assisting clients with construction defect and contract disputes
  • Provides practical and sensible solutions for clients’ employment needs
  • Tireless advocate for law enforcement officers

Erin’s practice focuses on civil litigation with an emphasis on construction, employment law and insurance defense work. She also represents law enforcement officers with matters such as disciplinary, employment and administrative proceedings. Erin is a Colorado native and earned her law degree in 2018 from Tulane University Law School. Prior to joining FGMC, Erin interned with the Honorable David H. Goldberg at Denver District Court and with the Arizona Diamondbacks. Erin is a member of the Colorado Bar Association (construction and employment law sections), Colorado Defense Lawyers Association, and Colorado Women’s Bar Association. Erin is an avid sports fan, when she is not in the office, she would most likely be found at a sporting event. Erin enjoys all Colorado has to offer while hiking and spending time with her dog.


  • Tulane University Law School, J.D., Cum Laude, 2018
  • Baylor University, Bachelor of Business Administration, 2015

Bar Admissions

  • Colorado, 2018

Professional Memberships

  • Denver Bar Association
  • Colorado Bar Association, Member Construction and Employment Law Sections
  • Colorado Defense Lawyers Association, Member
  • Colorado Women’s Bar Association


  • Colorado Super Lawyers, “Rising Star”, 2024