Mitch Geller spent roughly a decade as a journalist before going to law school, running two newspapers and freelancing to magazines locally and nationally. He received a B.S. degree in Journalism from the University of Colorado in 1973. In 1979, Mr. Geller received his Juris Doctorate degree from the University of Denver Sturm College of Law, and was licensed to practice law in October of 1979.

During law school, Mr. Geller served as an investigator for the Colorado State Public Defender's Office and later served as a law clerk for Denver District Court Judge Alvin D. Lichtenstein. Immediately subsequent to law school, he practiced as a trial attorney for the Colorado State Public Defender's Office for a period of two years and has since been steadily engaged in domestic, criminal, and civil practice.