O'Brien, Maureen

12600 West Colfax AvenueSuite C400Lakewood, CO 80215- 3761


Updated: 07/09/2012


Maureen O'Brien has dedicated her legal career to defending individuals charged with a wide range of crimes. A partner at O'Brien, Thomas & Bibik, LLC, in Lakewood, Colorado, Ms. O'Brien represents clients in Jefferson County and the surrounding areas who are facing charges ranging from DUI to murder.  However, she primarily focuses on felony cases.

Ms. O'Brien is active in a number of professional organizations. She is a past president of the Colorado Criminal Defense...


Office Info

Current Employment Position(s)

  • Partner

Practice Areas

  • Criminal Defense


Bar Admissions

  • Colorado, 1990
  • U.S. District Court District of Colorado
  • U.S. District Court
  • U.S. Federal Courts, 1990

Other Affiliations

  • First Judicial District Bar Association in Jefferson County Colorado (Past President)
  • Colorado Criminal Defense Bar (Past President )


  • University of Colorado School of Law, Boulder, Colorado, 1990
    J.D., Doctor of Jurisprudence
  • Pace University, Pleasantville, New York, 1976
    B.A., Bachelor of Arts

Fraternities and Sororities

  • Delta Theta Phi

Office Information


12600 West Colfax AvenueSuite C400Lakewood, CO 80215- 3761

Office Hours

8:30am - 5pm Monday through Friday


  • 303-232-5161



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