Maureen J. O'Brien

Attorney Profile

Top Rated Criminal Defense Attorney in Lakewood, CO

O'Brien, Thomas & Bibik, LLC
 | 12600 West Colfax, Suite C400
Lakewood, CO 80215
Phone: 303-238-0648
Fax: 303-232-5161
Selected to Super Lawyers: 2007 - 2012, 2018 - 2019
Licensed Since: 1990
Practice Areas:
  • Criminal Defense (70%),
  • Criminal Defense: DUI/DWI (20%),
  • Criminal Defense: White Collar (10%)
Attorney Profile

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. She primarily focuses on felony cases.

In 2012, Ms. O'Brien received the prestigious Award of Merit from the First Judicial District Bar Association, its highest honor, at their annual bar dinner.  She has the highest rating - AV - by Martindale-Hubbel.

Ms. O'Brien is active in a number of professional organizations. She is a past President of the Colorado Criminal Defense Bar, and served on that board for seven years. She served as Chairman of the Corrections Board in Jefferson County for 18 years. Ms. O'Brien has been appointed to the Jefferson County Strategic Planning Committee and is a past President of the First Judicial District Bar Association in Jefferson County, Colorado.  She also consistently has the highest rating for lawyers, a 10 (Superb) on

Recognized for her dedication to professional excellence, Maureen O'Brien has been included in the list of top 100 trial lawyers in Colorado by The National Trial Lawyers for the past six years. She has also been selected for inclusion in Colorado Super Lawyers and has recieved the Client Satisfaction Award from the American Institute of Criminal Law Attorneys.

Practice Areas
Lawyer Practice Area Pie Chart

Criminal Defense (70%)

Criminal Defense: DUI/DWI (20%)

Criminal Defense: White Collar (10%)


Selected to Super Lawyers for 8 yearsbottom-image

Super Lawyers: 2007 - 2012, 2018 - 2019

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About Maureen O'Brien

Admitted: 1990, Colorado

Professional Webpage:


  • This is the Bar Association's highest honor, awarded annuallly to a lawyer who has provided distinguished service to the bar and the community., Award of Merit, 1st Judicial District Bar Association, 2012
  • This is a selection to the top 100 trial attorneys in the state.  Every year from 2007-2013., Tio 100 Trial Lawyers in Colorado, The National Trial Lawyers, 2007
  • Superb rating by, a rating system for attorneys.
  • AV Rating.  The highest rating by Martindale Hubbell.
  • Recipient, American Jurisprudence Award, Criminal Procedure
  • Delta Theta Phi

Special Licenses/Certifications:

  • Licensed Nursing Home Administrator, Florida, 1984

Bar/Professional Activity:

  • Past President, Colorado Criminal Defense Bar Association,, 2009
  • Admitted to Colorado Bar, 1990
  • U.S. District Court, District of Colorado, 1990
  • Member, Criminal Justice Strategic Planning Committee, Jefferson County, 2000 - 2015
  • Member, Board of Directors, Colorado Criminal Defense Bar Association, 2003 - 2008
  • Chairman, Jefferson County Corrections Board, 1997 - 2015
  • Appointed to Governor's Advisory Council on Community Corrections, 2000 -  2008
  • Member, Jefferson County District Attorney's Office Diversion Council, 1994 - 1996
  • National Association of Criminal Defense Lawyers
  • President Elect, Colorado Criminal Defense Bar Association, 2007 - 2008
  • Secretary, Colorado Criminal Defense Bar Association, 2006 - 2007
  • Colorado Bar Association
  • President, First Judicial District Bar Association, 1999 - 2000
  • President Elect, First Judicial District Bar Association, 1998 - 1999
  • Secretary/Treasurer, First Judicial District Bar Association, 1997 - 1998
  • Member, Board of Trustees, First Judicial District Bar Association, 1995 - 1997

Scholarly Lectures/Writings:

  • Speaker at a professional seminar regarding DUI practice., Presenter, Speaker, 1st JD Bar Association, 2013

Representative Clients:

  • People v. Schneider, 991 P.2d 296, Co. App, 1999

Educational Background:

  • Pace University, B.A. University of Colorado School of Law, J.D. - 1990
Find Me Online
Office Location for Maureen J. O'Brien

12600 West Colfax
Suite C400
Lakewood, CO 80215

Phone: 303-238-0648

Fax: 303-232-5161

Maureen J. O'Brien:

Last Updated: 10/5/2018

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