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Lonn Heymann Law Firm, P.C. Will Help You

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Criminal Defense Attorney

Traffic Law Attorney

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Lonn Heymann Law Firm, A Denver, Colorado Law Firm That Provides Legal Advice in The Areas of Assault, Traffic Law, Criminal Defense, Domestic Violence, DUI, Sex Crimes, and any types of Civil & Criminal Cases.

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Experienced Lawyers In Denver CO

Practice Areas

Criminal Defense

At Lonn Heymann Law Firm, we provide legal services to clients throughout Colorado. Our criminal attorneys and lawyers in Denver are experienced and skilled in all areas of law, and provide the best and most comprehensive legal representation for both state and federal cases.


Lonn Heymann Law Firm is the best DUI attorney and law firm in Denver, CO. We represent clients in drunk driving cases with the goal to get them the best possible outcome for their case. We know how important your freedom is and will work hard to get you the best outcome in your case.

Domestic Violence

The Lonn Heymann Law Firm’s top-notch lawyers have an excellent track record of winning cases. With decades of experience handling domestic violence cases, our domestic violence attorneys & lawyers in Denver, Colorado are prepared to use every possible angle to ensure you’re victorious.

Sex Crime

If you or a loved one is facing sex crime charges, it’s imperative to hire a lawyer who has experience handling these cases. Lonn Heymann is the best sex crime lawyer and attorney in Denver, CO, and surrounding areas. We represent clients accused of all types of criminal offenses, including sex crimes.

Traffic Law

As a best traffic law attorney and lawyer in Denver, CO, Lonn Heymann Law Firm helps clients get out of tough situations. If you are facing a DUI, DWI or other traffic violation. With years of experience, the firm has successfully represented clients in state and federal courts.


Lonn Heymann is the best assault lawyer and attorney in Denver Colorado. If you’re facing a DUI, domestic violence, or assault charges in Denver, the Lonn Heymann Law Firm is here to help. Our law firm has successfully advocated for the rights of injured individuals and their families for more than 30 years.

About us


At Lonn Heymann Law Firm, A Denver, Colorado Law Firm, we are committed to providing our clients with the best legal advice and assistance in the areas of Assault, Traffic Law, Criminal Defense, Domestic Violence, DUI, Sex Crimes, and any types of civil & criminal cases.

Lonn Heymann Law Firm, P.C. is a Denver law firm that helps those in need by providing legal advice to individuals in their most difficult times as well as helping people who are being accused of criminal offenses or facing traffic violations for first-time offenders.

At Lonn Heymann Law Firm, P.C., we dedicate ourselves to helping our clients with a kind heart and a firm voice. We provide personal attention to all of our clients’ needs. When we take a case, we treat it with the utmost discretion and attention to detail so we cover every angle thoroughly with true professionalism. We strive to stay in communication with our clients so they know we have their best interests in mind as we pursue their case.

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Lonn Heymann Law Firm, P.C. Will Help You

The attorneys at Lonn Heymann Law Firm, P.C. have years of experience in both civil and criminal cases. We bring that experience to bear for every case, creating a solid foundation for our clients’ defense. Our many years of experience will put us a step ahead in the case and allow us to create the best arguments for every scenario.

Primary Service Areas

Denver-Metro Area, County of Denver, Arapahoe County, Jefferson County, Adams County, Douglas County, Broomfield County, Boulder County, Denver, Aurora, Centennial, Lakewood, Greenwood Village, Golden, Arvada, Castle Rock, Thornton, Wheatridge, Brighton, Boulder.

More Service Areas

Weld County, Gilpin County, Larimer County, El Paso County, Clear Creek County, Colorado Springs, Greeley, Loveland, Ft. Collins, Central City/Blackhawk, Georgetown, Conifer.

Summit County, Eagle County, Garfield County, Lincoln County, Huerfano County, Park County, Frisco, Breckenridge, Durango, Silverthorne, Vail, Avon, Edwards, Glenwood Springs, Kiowa, Walsenburg, Fairplay, Bailey, Sloan’s Lake, Union Station, Capitol Hill, City Park, Lincoln Park, Sun Valley, Congress Park, Washington Park, Glendale, Cherry Creek, Ruby Hill.

Get in Touch

Office Location

Lonn Heymann Law Firm, P.C.

130 W. 5th Avenue, Denver, CO, 80204, US

Mailing Address

Lonn Heymann Law Firm, P.C.

P.O. Box 18429, Denver, CO, 80218, US