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Sean P. Harrell

Sean P. Harrell

DUI or Criminal Charges, Call 970-658-0007 for immediate assistance.
  • DUI & DWI, Domestic Violence, Criminal Law ...
  • Colorado
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How I Can Help You

As a criminal defense lawyer, it is my goal to educate each client on the charges they face, possible penalties, and the judicial process. I work to protect my clients rights and help them make informed decisions in reaching the best possible outcome.

As a former Deputy District Attorney in Colorado, I have an insight into the inner workings of the DA’s office, as well as the entire criminal justice system. Because there are such a large caseloads in Larimer County, Weld County, and the Denver metro area, prosecutors have to analyze the cases on their docket quickly and make rushed decisions. Many Coloradoans and visitors to our state face criminal charges without the assistance of a lawyer, and feel they have no other choice than to take the deal– a decision many regret years, months or even days later.

I attended Lipscomb University, a private, liberal arts university in Nashville, Tennessee, where I received my Bachelor of Arts in Political Science and German. I then moved across the country to earn my Juris Doctorate at the University of Denver, Sturm College of Law.

I left law school with the strong desire to serve the community, so I became a Deputy District Attorney. As a prosecutor, I managed hundreds of criminal cases and tried dozens of those cases before juries. Since entering private practice as a criminal defense attorney in 2013 I have consistently and effectively defendant clients charged with violent crimes, sex offenses, DUI and DWAI, domestic violence enhancers, child abuse, drug crimes and crimes against property. I invest extra time to continuing education in the areas of criminal defense, criminal procedure and evidence so as to provide a top quality legal practice year after year.

Practice Areas
  • DUI & DWI
  • Domestic Violence
  • Criminal Law
  • Juvenile Law
  • Free Consultation
  • Credit Cards Accepted
Jurisdictions Admitted to Practice
Colorado Supreme Court
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  • English: Spoken, Written
Professional Experience
O'Malley Law Office, P.C.
- Current
Criminal defense and DUI defense attorney. I handle felonies and misdemeanors, including DUI/DWAI, possession and distribution of controlled substances, crimes of violence, and domestic violence matters.
Ellmann & Ellmann, P.C.
Criminal Defense and Family Law Attorney. I handled child custody modifications, emergency orders, dissolution of marriage and support modifications. In addition, I handled criminal matters including assaults, DUI/DWAI, domestic violence and harassment charges.
Folkestad Fazekas Barrick & Patoile, P.C.
Criminal Defense and Domestic Relations Attorney. I handled dissolution of marriage and child custody matters from original filing through permanent order hearings. In addition, I focused on criminal cases including, DUI/DWAI, domestic violence, assaults, harassment, and economic crimes.
Deputy District Attorney
18th Judicial District Attorney's Office
University of Denver
J.D. (2010) | Corporations, Contracts, Bankruptcy, Criminal Procedure, Negotiations
Activities: International Law Association- Treasurer
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Lipscomb University
B.A. (2003) | German and Political Science
Honors: Cum Laude
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Top 40 Under 40
National Trial Lawyer Association
Professional Associations
Colorado State Bar  # 42637
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Articles & Publications
Speaking Engagements
Top 40 under 40
National Trial Lawyers Association
Websites & Blogs
O'Malley Law Office, P.C. - Fort Collins
O'Malley Law Office, P.C. - Greeley
Contact & Map
O'Malley Law Office, P.C.
Larimer County Location in Old Town Fort Collins
123 N College Ave, Suite 220
Fort Collins, CO 80524
Telephone: (970) 658-0007
Monday: 8 AM - 10 PM
Tuesday: 8 AM - 10 PM
Wednesday: 8 AM - 10 PM
Thursday: 8 AM - 10 PM
Friday: 8 PM - 10 PM
Saturday: Closed
Sunday: Closed (Today)
Notice: On Call 24/7. If you or someone you care about has been charged with a DUI/DWAI or other crimes, do not hesitate to reach out to me by phone at 970-658-0007 or by email
O'Malley Law Office, P.C.
Weld County Location in Downtown Greeley
801 8th Street, Suite 220
Greeley, CO 80631
Telephone: (970) 616-6009
Monday: 8 AM - 10 PM
Tuesday: 8 AM - 10 PM
Wednesday: 8 AM - 10 PM
Thursday: 8 AM - 10 PM
Friday: 8 AM - 10 PM
Saturday: Closed
Sunday: Closed (Today)
Notice: On Call 24/7. If you or a someone you care about has been charged with a DUI/DWAI or other criminal charges do not hesitate to reach me at 970-616-6009 or by email at