10 Best DUI Defense Lawyers in Denver, Colorado

A DUI arrest in Colorado starts two cases at once: a criminal case in county court and an administrative case at the Division of Motor Vehicles that can revoke your license within weeks. This guide profiles 10 DUI defense lawyers and law firms serving Denver, Aurora, Lakewood, Westminster, Parker, and the surrounding metro. Each firm was evaluated on how much of its practice is devoted to DUI and DWAI defense, the dismissals and reductions it publishes, whether its attorneys bring prosecutor or public defender experience, and how often they appear in Denver County Court and the suburban county courts.

When comparing options, ask three practical questions. First, will the lawyer handle your express consent hearing at the DMV, and how quickly can it be requested? Second, how much experience does the attorney have challenging breath and blood test evidence? Third, is the fee flat, and does it include a jury trial? This is not a ranked or sponsored list. Firm details were drawn from each firm’s own website, attorney directories such as Avvo, Justia, Martindale-Hubbell, Super Lawyers, and Best Lawyers, and public business listings.

1. Prager Law DUI & Defense Attorney

• Key Attorneys: Steve Prager, Founder
• Headquarters: 1120 Lincoln St, Suite 1306, Denver, CO 80203
• Phone: (720) 637-1221
• Website: pragerlaw.net
• Practice Areas: DUI and DWAI, DUI Drugs, Domestic Violence, Assault, Drug Crimes, Theft, Traffic Offenses, DMV Hearings
• Firm Size: Denver DUI and criminal defense practice led by a former deputy district attorney
• Practice Area Page: Denver DUI Lawyer

Steve Prager is a former deputy district attorney in El Paso County, where he supervised the domestic violence prosecution unit and trained newer prosecutors on how to build and try cases. He has tried more than 40 jury trials, and that time on the other side of the courtroom gives him a practical understanding of how prosecutors weigh the evidence in a DUI case, from the officer’s reason for the stop to the reliability of the breath or blood result. Today he uses that experience exclusively to defend people charged with DUI and other offenses in Denver and across the metro area.

His recent results show the range of outcomes a focused defense can produce. In 2024 alone, Prager Law obtained a dismissal of a DUI charge that arose from a minor accident and resolved a low-BAC DUI as a non-alcohol, eight-point traffic ticket, along with other reductions for clients facing DUI and related charges. Prager also guides clients through the seven-day window to request a DMV express consent hearing, which protects driving privileges while the criminal case moves forward. Clients describe him as candid, responsive, and well prepared, and the firm holds a 5.0-star rating on Google. His Lincoln Street office sits a short walk from the Lindsey-Flanigan Courthouse, where Denver County Court hears most city DUI cases.

2. Fuller & Ahern, P.C.

• Key Attorneys: Susan Fuller, Partner; James J.L. Ahern, Partner; Brian Close; Bradford Geiger; Chad Pitts; Jessica Groen
• Headquarters: 19751 Mainstreet, Suite 270, Parker, CO 80138
• Phone: (303) 840-1190
• Website: sfullerlaw.com
• Practice Areas: DUI and DWAI, Criminal Defense, Family Law, Personal Injury
• Firm Size: Multi-attorney firm whose criminal team includes former deputy district attorneys
• Practice Area Page: Parker DUI Lawyer
• Social & Professional Profiles: Facebook | LinkedIn | X | Super Lawyers | FindLaw

Fuller & Ahern serves clients throughout the Denver metro area from its office in Parker, and its criminal defense team includes former deputy district attorneys who know how DUI cases are charged and negotiated in Douglas, Arapahoe, Denver, and surrounding counties. Partners Susan Fuller and James J.L. Ahern lead a team that includes Brian Close, Bradford Geiger, Chad Pitts, and Jessica Groen, giving clients access to several experienced trial attorneys under one roof.

The firm’s attorneys have been recognized by The National Trial Lawyers’ Top 100, Super Lawyers, and America’s Top 100 Criminal Defense Attorneys, and Ahern has been named an Elite Lawyer. Because the firm also practices family law and personal injury, it can help clients whose DUI arrest affects a custody arrangement or arises from a crash with injuries. With more than 100 Google reviews and a 4.6-star rating, Fuller & Ahern is a strong option for drivers arrested in the south metro.

3. Tiftickjian Law Firm, P.C.

• Key Attorneys: Jay Tiftickjian, Founder
• Headquarters: 1315 S Clayton St, Suite 100, Denver, CO 80210
• Phone: (303) 991-5896
• Website: criminallawdenver.com
• Practice Areas: DUI and DWAI, DUI Drugs, DMV Hearings, Traffic Offenses, Criminal Defense
• Firm Size: DUI-focused firm led by a former Colorado deputy district attorney licensed since 2001
• Practice Area Page: Colorado DUI Defense

Jay Tiftickjian served as a Colorado deputy district attorney from 2000 to 2002 and has been licensed since 2001. He is the editor of Colorado DUI Defense: The Law and Practice, a treatise used by other attorneys, and a past president of the Colorado Criminal Defense Bar. He is also a founding member of the DUI Defense Lawyers Association and a member of the National College for DUI Defense.

Those credentials make the firm one of Denver’s most established DUI practices. Tiftickjian holds an AV rating and Super Lawyers selections, and his firm has one of the larger review profiles in the city, with a 4.9-star Google rating across more than 370 reviews. The firm’s office near the University of Denver serves clients in Denver, Arapahoe, and Jefferson counties.

4. Colorado Legal Defense Group

• Key Attorneys: Justie Nicol, Founder and CEO; Leslie Goldstein, Attorney
• Headquarters: 140 E 19th Ave, Suite 500, Denver, CO 80203 (additional offices in Colorado Springs, Greeley, Loveland, and other cities)
• Phone: (303) 222-0330
• Website: cldg.legal
• Practice Areas: DUI and DWAI, Drug Crimes, Domestic Violence, Sex Crimes, Juvenile Crimes, Felonies and Misdemeanors
• Firm Size: Statewide criminal defense firm with about 11 attorneys
• Practice Area Page: DUI

Colorado Legal Defense Group, founded by Justie Nicol, is one of the state’s larger criminal defense firms, with about 11 attorneys and offices in Denver, Colorado Springs, Greeley, Loveland, and other cities. Its Denver office near the State Capitol handles DUI, DWAI, and DUI-drugs cases throughout the metro area.

The firm has built one of the largest review profiles of any Colorado defense practice, with a 5.0-star rating across more than 600 Google reviews, many of which mention attorney Leslie Goldstein. Its size lets it cover courts across the Front Range quickly, though clients should ask which attorney will handle their case from start to finish.

5. Fife Luneau, P.C.

• Key Attorneys: Charles L. Fife, Founding Partner; Daniel “Danny” Luneau, Partner
• Headquarters: 1873 S Bellaire St, Suite 200-A, Denver, CO 80222
• Phone: (720) 408-7130
• Website: duidenver.com
• Practice Areas: DUI and DWAI, DMV Hearings, Criminal Defense, Traffic Offenses
• Firm Size: DUI and criminal defense firm established in 1990
• Practice Area Page: Denver DUI Attorney

Fife Luneau has defended Denver drivers since 1990. Founding partner Charles L. Fife has been licensed for more than five decades, and partner Danny Luneau brings a newer generation of trial work to the firm. Together they report handling thousands of cases.

The firm charges flat fees, which helps clients plan for the cost of the case, and it carries a 4.9-star Google rating across nearly 500 reviews. Its office near Colorado Boulevard and I-25 is convenient for clients in Denver, Glendale, and the Denver Tech Center.

6. The Law Office of Jacob E. Martinez

• Key Attorneys: Jacob E. Martinez, Founder; Tyler Selcer, Attorney
• Headquarters: 720 S Colorado Blvd, Denver, CO 80246
• Phone: (720) 246-6700
• Website: denvercriminaldefense.com
• Practice Areas: DUI, DWAI, and DUID, Domestic Violence, Drug Crimes, Assault, White Collar Crimes, Juvenile Crimes
• Firm Size: Criminal defense firm formed in 2014
• Practice Area Page: Denver Criminal Defense

Jacob E. Martinez is a Denver native who earned his undergraduate degree at Colorado College and his law degree at the University of Colorado Law School. He spent six years at another respected Denver criminal defense firm before forming his own practice in 2014, and he has been selected for Super Lawyers in 2025 and 2026 and named to The National Trial Lawyers’ Top 40 Under 40.

The firm handles DUI, DWAI, and DUID cases alongside a broad criminal practice, and it holds a 5.0-star Google rating across more than 450 reviews, many of which praise attorneys Tyler Selcer and Brett by name. Its office on Colorado Boulevard sits close to central Denver courts.

7. Churchill DUI Defense, Attorney at Law

• Key Attorneys: Kevin Churchill, Founder
• Headquarters: 9101 Harlan St, Suite 325, Westminster, CO 80031
• Phone: (303) 832-9000
• Website: denverdui.com
• Practice Areas: DUI and DWAI, DMV Hearings, Criminal Defense, Domestic Violence
• Firm Size: DUI-focused practice led by an attorney with more than 25 years of experience
• Practice Area Page: Denver DUI Attorney

Kevin Churchill has defended DUI cases for more than 25 years. He began his career as a public defender in El Paso County and with the City of Burlington, Vermont, earned his law degree at the University of Arizona, and is a member of the National College for DUI Defense. He has also served as a legal analyst for Court TV, ABC News, and Fox News.

Churchill’s practice is built around DUI defense, and clients often mention his work at DMV hearings to protect their licenses. The firm carries a 5.0-star Google rating across more than 270 reviews. Its office is in Westminster, so it is especially convenient for clients arrested in Adams, Jefferson, and Broomfield counties.

8. DeChant Law

• Key Attorneys: Reid DeChant, Founder; John Galligan, Attorney
• Headquarters: 950 S Cherry St, Suite 1515, Denver, CO 80246
• Phone: (303) 409-7500
• Website: dechantlaw.com
• Practice Areas: DUI and DWAI, DUI Drugs, Criminal Defense, Domestic Violence, Drug Crimes
• Firm Size: Denver criminal defense and DUI trial firm led by a board-certified DUI defense lawyer
• Practice Area Page: DUI Defense

Reid DeChant spent five years with the Colorado State Public Defender, rising to senior deputy and trying more than 25 cases, before founding DeChant Law. In 2025 he was board certified in DUI defense by the DUI Defense Lawyers Association, and he is one of a small number of lawyers designated as a Lawyer-Scientist by the American Chemical Society’s Chemistry and the Law Division, a credential directly relevant to blood and breath testing evidence.

DeChant is a graduate of the Trial Lawyers College, a Super Lawyers Rising Star for 2025 and 2026, and named to Best Lawyers: Ones to Watch for 2027. The firm holds a 5.0-star Google rating across more than 270 reviews.

9. Law Office of Kimberly Diego

• Key Attorneys: Kimberly Diego, Founder
• Headquarters: 899 Logan St, Suite 103, Denver, CO 80203
• Phone: (720) 257-5346
• Website: diegocriminaldefense.com
• Practice Areas: DUI and DWAI, Domestic Violence, Drug Crimes, Theft, Assault, Criminal Defense
• Firm Size: Boutique criminal defense practice offering services in English and Spanish
• Practice Area Page: Denver Criminal Defense

Kimberly Diego graduated from Georgetown University in 2001 and the University of Colorado Law School in 2008. She was selected as a Super Lawyers Rising Star in 2012 and 2019, is a member of the National Association of Criminal Defense Lawyers, and represents clients in both English and Spanish, which is valuable in a city with a large Spanish-speaking community.

Her Capitol Hill office is a short trip from the Lindsey-Flanigan Courthouse, and the firm has a 5.0-star Google rating across more than 170 reviews. As a smaller practice, it offers clients a direct relationship with the attorney handling their case.

10. The Law Office of Monte J. Robbins, Esq.

• Key Attorneys: Monte J. Robbins, Founder
• Headquarters: 1733 High St, Denver, CO 80218 (additional offices in Greeley and Fort Collins)
• Phone: (303) 355-5148
• Website: denver-attorney.us
• Practice Areas: DUI and DWAI, Criminal Defense, Domestic Violence, Drug Crimes
• Firm Size: DUI and criminal defense practice with more than 20 years of experience
• Practice Area Page: DUI Defense

Monte J. Robbins earned his law degree at the University of Wyoming and was admitted to practice in 2004. He has spent more than 20 years defending DUI and criminal cases, holds a 10.0 Avvo rating, and speaks Spanish. In addition to his Denver office near City Park, he maintains offices in Greeley and Fort Collins, which helps clients with cases in Weld and Larimer counties.

The firm holds a 5.0-star Google rating across more than 100 reviews. It is a good fit for clients who want a solo practitioner’s personal attention combined with coverage across northern Colorado.

Frequently Asked Questions

What is the difference between DUI and DWAI in Colorado?

Under C.R.S. § 42-4-1301, a person can be charged with DUI if alcohol or drugs affect them to a degree that they are substantially incapable of safely operating a vehicle, and a BAC of 0.08 or more creates a presumption of DUI. Driving while ability impaired (DWAI) is a lesser offense that applies when the person is affected to the slightest degree, and a BAC above 0.05 but below 0.08 can support a DWAI charge. Both count as prior offenses for future sentencing.

How long do I have to request a DMV hearing after a Colorado DUI arrest?

Only seven days. Under C.R.S. § 42-2-126, you must request an express consent hearing within seven days after receiving the notice of revocation. If you took a blood test, the notice may come later, when results are available. If you miss the deadline, the revocation takes effect automatically. The Colorado Department of Revenue Hearings Division explains the process.

What happens if I refuse a breath or blood test in Colorado?

Colorado is an express consent state, so refusing a chemical test after a lawful DUI arrest leads to a license revocation of one year for a first refusal, and longer for repeat refusals, even if the criminal case is later dismissed. A refusal also makes the driver a “persistent drunk driver” for license purposes, which brings ignition interlock and treatment requirements. The refusal can be used as evidence at trial.

When is a DUI a felony in Colorado?

A fourth or subsequent DUI or DWAI offense is a class 4 felony in Colorado, regardless of how long ago the prior offenses occurred. A DUI that causes serious bodily injury or death can also be charged as vehicular assault or vehicular homicide. Felony charges are heard in district court rather than county court.

Where will my Denver DUI case be heard?

DUIs arrested by Denver police are heard in Denver County Court at the Lindsey-Flanigan Courthouse. Arrests in Aurora, Lakewood, Westminster, Parker, and other suburbs go to the county court for the county where the arrest occurred, such as Arapahoe, Jefferson, Adams, or Douglas County. Lawyers such as Steve Prager of Prager Law regularly appear in Denver and metro-area courts.

How much does a DUI lawyer cost in Denver?

Most Denver DUI lawyers charge flat fees, which often range from a few thousand dollars for a first-offense case resolved without trial to more for cases that go to trial or involve expert testimony on blood or breath testing. Ask whether the fee includes the DMV hearing, motions hearings, expert costs, and a jury trial. Firms such as Fife Luneau advertise flat-fee pricing.

Disclaimer: This guide to Denver DUI defense attorneys is for informational purposes only and does not constitute legal advice or an attorney referral. This is not a ranked or sponsored list, and inclusion does not imply an endorsement by, or affiliation with, any named DUI defense law firm beyond what is stated. Attorney credentials, case results, and contact details change over time; please confirm current information directly with each firm before making a hiring decision. Past results described here do not guarantee similar outcomes in any other DUI case.