About
Catherine A. Tallerico is a shareholder at Lyons Gaddis, P.C. in Longmont, Colorado. Her practice focuses on civil rights, employment law, education law, governmental immunity, special districts, construction matters, and insurance coverage. Tallerico primarily represents governmental entities, including school districts and special districts, and advises boards and executives on constitutional issues, workplace matters, public meetings, open records, elections, student concerns, policies, and day-to-day governmental operations.
Tallerico earned her J.D. from the University of Colorado School of Law in 1990, where she served on the Board of Editors of the University of Colorado Law Review. She previously earned her bachelor’s degree from the University of Colorado School of Journalism in 1986. Her legal and communications training supports a litigation and counseling practice requiring detailed legal analysis, persuasive advocacy, policy development, and clear advice to public officials and organizational leaders.
Tallerico has substantial trial and appellate experience in state and federal courts and before administrative agencies. Her litigation work includes civil rights and constitutional claims, employment discrimination, special education disputes, contract matters, and construction cases. Before joining Lyons Gaddis, she was a shareholder at a Denver litigation firm, where she defended employment discrimination, civil rights, and construction defect lawsuits. She also regularly assists employers with workplace investigations and compliance matters.
Catherine A. Tallerico is a frequent speaker on employment and education law and has presented on workplace investigations, equal pay requirements, special district policies, social media, teacher discipline, and related issues. She is a past president of the Colorado Council of School Board Attorneys and previously served on the Colorado Women’s Bar Association Board of Directors. She also belongs to the Colorado Bar Association Employment Section and the Boulder County Bar Association.
Law Office Affiliations
- Shareholder, Lyons Gaddis, P.C.
- Member, Colorado Bar Association
- Past President, Colorado Council of School Board Attorneys
- Former Board Member, Colorado Women’s Bar Association
- Member, Colorado Bar Association, Employment Section
- Member, Boulder Bar Association
Licensed State
- Colorado
Education
- University of Colorado, School of Law
law degree - University of Colorado, School of Journalism
bachelor’s degree
Awards & Badges



- Constitutional
- Discrimination
- Employment Litigation
- Wage & Hour Laws
- Litigation
- Insurance Claims
- State, Local & Municipal
- Construction & Development
- Business Litigation




