Phone: (303) 691-3737 x132
Fax: (303) 757-5106

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– Criminal Defense
– General Civil Litigation
– 2010 J.D. – University of Wyoming College of Law
– 2007 B.S. – University of Colorado (cum laude)


Early on, Erinn knew that she had a passion for the law and decided during her senior year of high school to become a lawyer. Right out of school, she got a job as a legal assistant for a personal injury firm in Denver, where she worked seasonally throughout college and part of law school.  She graduated from the University of Northern Colorado with a double major in Political Science and Philosophy and a minor in Legal Studies. She achieved this accomplishment in 4 years, while also participating in college sports.

Erinn continued her education at the University of Wyoming, obtaining her Juris Doctorate in 2010. While in law school she was an active participant in Phi Alpha Delta, a national law fraternity, often organizing many of the events and serving as president for the Laramie chapter. In 2009, Erinn became a summer intern at Nathan, Dumm & Mayer where she began to learn the art of civil litigation.

After graduation, Erinn decided that she wanted to become a trial attorney which led her to prosecution.  She started her prosecutorial career in Alamosa, Colorado where she quickly gained experience in criminal prosecution learning how to advocate for her case and for victims of crimes. She eventually made her way to Arapahoe County District Attorney’s Office where she was a deputy DA for just over 5 years. Erinn was a passionate advocate for victims of crime and carefully navigated the constitutional requirements under the criminal law.

Erinn has litigated more than 100 jury trials from cases ranging in seriousness from traffic and misdemeanor offenses through attempted murder cases.  After eight years of public service as a prosecutor, Erinn has returned to the private sector.

Presently for Nathan, Dumm & Mayer Erinn specializes in criminal defense and general civil litigation.

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7900 East Union Ave – Suite 600 Denver, CO 80237 Phone 303-691-3737