receive the legal representation 
you deserve

Being charged with a crime is very intimidating. Be it the federal government, the state government or a municipality, the prospect of facing off against the government can be overwhelming and you need someone who has the skills and experience to help. You also need someone who will take the time and understand your own unique circumstances-no case is the same. 

  John F. Sullivan III, Attorney at Law will make the time to listen. I have been in the field of criminal law for over thirty years. I was a district attorney from 1990-1999 and have been in criminal defense since 1999. I have been in federal criminal defense since 1999 as well. I have represented people in federal court in Colorado, Wyoming, Utah, Nebraska and Montana. I have represented people in state court in Denver, Adams, Alamosa, Arapahoe, Boulder, Douglas, El Paso, Jefferson, Garfield, Gunnison, Larimer, Lincoln, Logan, Pueblo,  Rio Blanco, Summit, Washington, and Weld Counties. I have tried over 120 jury trials.

Dedicating Over 30 Years to the Practice of Criminal Law

  • A degree in finance and experience working in finance before leaving for law school in 1987
  • Clerked in Washington DC
  • Worked as a prosecutor from 1990-1999 on well over 100 jury trials, with cases ranging from murder, drugs, white collar, to sex crimes and DUI's
  • Began working as a defense attorney in 1999 and has handled federal cases in Colorado, Montana, Nebraska and Utah as well as numerous state criminal cases in Colorado
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