Kansas DUI Defense. Former DUI prosecutor with over 15 years experience.

Representing Clients throughout Eastern Kansas

John M. Duma Photo
John M. Duma
Retired Founder

About

John M. Duma is the founder of Duma Law Offices and a longtime Kansas trial attorney whose career spans more than four decades of criminal defense and civil litigation. Now retired, John built the firm’s reputation on a straightforward principle: when your freedom, livelihood, or future is on the line, your defense should be strategic, experienced, and relentlessly prepared—values that still guide the practice today. 

Before private practice, John served as a Wyandotte County prosecutor, giving him an insider’s understanding of how cases are charged, investigated, and tried. Over the years, he became known throughout the Kansas City metro for handling serious felony and DUI matters as well as personal injury and workers’ compensation claims. John was also recognized by Super Lawyers from 2010 to 2023 for his work. 

Although John has stepped away from day-to-day representation, he remains an important part of the firm’s work. Our team regularly consults with him during weekly lunch meetings to discuss case strategy and practical, courtroom-tested approaches—so clients continue to benefit from the experience that helped shape Duma Law Offices. The firm is based in Olathe, Kansas, and can be reached at (913) 782-7072. 

Areas of Practice

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  • By submitting, you agree to receive text messages from Duma Law Offices at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy
  • Courtroom Champions
    With vast trial experience, we have the skill and knowledge necessary to win when it counts.
  • Focused on Client Interests

    Putting our clients in the most favorable position based on their specific needs.

  • Award-Winning Service
    Our firm is recognized locally and nationally as prestigious defenders of the accused.
  • Aggressive Defense

    Our firm aggressively defends the rights of the accused, leaving no stone unturned.

Hear From Our Happy Clients

    "If anyone needs a great Lawyer give them call"
    I worked with Michael and Dedee on my case, they were there for me all through the case calming me down and explaining to me what's going on and how it will be handle in the court system. If anyone needs a great Lawyer give them call they will help you get through it.
    - Kevin Underwood
    "I HIGHLY HIGHLY recommend him and the firm"
    Michael Duma was extremely helpful with making my difficult situation better. I HIGHLY HIGHLY recommend him and the firm …Thanks Mike !
    - Tony Parker
    "Michael and his staff get things done"
    Michael and his staff get things done. I will refer everyone I know that needs result minded legal representation. Thank you again.
    - Paul Varriano
    "If your looking for a great lawyer with fair pricing he’s your guy"
    AMAZING Lawfirm Duma was so nice and professional reassured me throughout my entire case and explained everything that was happening so I was always in loop of what was going on if your looking for a great lawyer with fair pricing he’s your guy this man helped out so much
    - Kelcie helm
    "I'm so grateful for the great outcome"
    My experience with Duma Law Office was outstanding. I called in the office, staff was professional and courteous. My case was done over the phone and it was successful resolve. I'm so grateful for the great outcome. Highly recommend!!
    - Hilda Suazo
    "Highly recommend this office for pain free and respectful representation"
    Excellent support and information. Highly recommend this office for pain free and respectful representation.
    - Denise Reilly
    "I’m very satisfied with the way he handled my legal needs"
    I’ve used Michael Duma a couple of times throughout the years, I’m very satisfied with the way he handled my legal needs! Will definitely use him again!
    - Chuck Mestagh
    "Michael Duma was absolutely incredible!"
    Michael Duma was absolutely incredible! He was beyond responsive, he worked hard to settle my case and his relationships within the legal system were very strong. His assistant was also amazing. Every time I called he was available within several hours if he was in court or had his office staff assist with what I needed. He’s probably the best attorney out there! I’d hire him again in a heartbeat!
    - Courtney Bruntz

Why Choose Duma Law Offices?

  • Courtroom Champions
    With vast trial experience, we have the skill and knowledge necessary to win when it counts.
  • Focused on Client Interests

    Putting our clients in the most favorable position based on their specific needs.

  • Award-Winning Service
    Our firm is recognized locally and nationally as prestigious defenders of the accused.
  • Aggressive Defense

    Our firm aggressively defends the rights of the accused, leaving no stone unturned.

We're Ready to Listen

Contact Duma Law Offices Today to Get the Help You Need


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  • Please make a selection.
  • Please enter a message.
  • By submitting, you agree to receive text messages from Duma Law Offices at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy