If you need a criminal defense lawyer, we can help.

Our Practice

Mary Claire Mulligan
Mulligan & Mulligan
p/c Evan Semon

Criminal Defense Practice

  • Pre-charging
  • Pre-trial litigation
  • Trial
  • Negotiation
  • Mitigation Presentation
  • Appeals
  • Post-conviction litigation

Our Approach

We focus on you and your needs. We work with a vetted team of professionals--experts, mitigation specialists, investigators, and paralegals--to make sure that we can do the best job possible for you and your family.

Legacy of Success

We are law partners and life partners who truly "live the job." Together, we have over 50 years' experience practicing in the courts in Colorado.


Mary Claire Mulligan

Mary Claire is a litigation attorney who has practiced in the trial courts of Colorado, in both the state and federal systems. She is a tenacious  lawyer who is often asked to teach other lawyers and to testify as an expert.

Casey J. Mulligan

Casey has practiced both trial and appellate law in Colorado. He now exclusively handles criminal appeals, and uses his background in trial practice to enhance his persuasive arguments.