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Timothy G. O'Neill

Timothy G. O'Neill

Partner| Denver


Tim O'Neill's national litigation practice focuses on complex business litigation and product liability tort litigation, particularly regional and national "pattern" litigation. He represents major corporate defendants as regional and national trial counsel with extensive jury trial experience in numerous federal and state courts around the country. Tim is a Fellow of the American College of Trial Lawyers.

Tim served as the Administrative Partner of Snell & Wilmer's Denver office and a member of the firm's Executive Committee from 2000 through 2016.

  • Arizona State University (J.D., cum laude, 1985)
  • Arizona State University (B.S., 1982)
  • American College of Trial Lawyers, Fellow
    • Colorado State Committee (2014-2018)
    • Jury Committee (2017-2018)
  • Product Liability Advisory Council, Sustaining Member
  • Defense Research Institute
  • International Association of Defense Counsel
  • American Bar Association
  • Colorado Fellows of the American Bar Foundation
  • Colorado Energy Coalition
  • Litigation Counsel of America, Fellow
  • "What You Need to Know About Preparing For and Taking Expert Depositions," Presenter, Rossdale Group CLE (October 4, 2017)
  • "Winning at Trial 2016: Practical Pointers," Moderator and Presenter, Colorado Bar Association/American College of Trial Lawyers CLE (November 4, 2016)
  • "Taking and Defending Powerful Depositions," Presenter, Rossdale Group CLE (October 13, 2016)
  • "Mastering the Use of Experts at Trial: Voir Dire and Opening Statement Considerations," Presenter, Rossdale Group CLE (December 1, 2015)
  • "Use of Social Media in Jury Selection: Ethics and Efficacy," Presenter, Colorado Bar Association/American College of Trial Lawyers CLE "Winning at Trial 2015: Skills and Tactics" (November 2015)
  • "Opening Statement: The Importance of a Compelling, Comprehensive, and Persuasive Opening Statement," Presenter, Colorado Bar Association/American College of Trial Lawyers CLE "Winning at Trial: Skills and Tactics 2014" (November 2014)
  • "Jurors and Social Media: Implications of ABA Formal Opinion 466," Presenter, Colorado Bar Association/American College of Trial Lawyers CLE "Winning at Trial: Skills and Tactics 2014" (November 2014)
  • "Deposing the Expert Witness," Presenter, Colorado Bar Association CLE series "On Depositions in Colorado" (January 2013)
  • "Ethical Considerations in Jury Selection: Use of Social Media," American Conference Institute Drug and Medical Device Litigation Conference (December 2012)
  • "Voir Dire and Opening Statements: Selecting the Right Jury and Setting the Framework for the Case," Strafford Publications Webinar (December 2011)
  • "Year-end review of legislation, case law affecting real estate," Author, Colorado Real Estate Journal (December 2011)
  • "Selecting Your Jury and Handling Voir Dire," Colorado Bar Association Trial Skills Series (August 2011)
  • "Process Improvement and Project Management," Hildebrandt Institute Marketing Partner Forum (January 2011)
  • "The Disappearing Jury Trial," Co-Author, Law Week Colorado (April 26, 2010)
  • "The Changing Face of Modern Juries: New Profiles for New Decision-makers," American Bar Association Section of Litigation (January 2009)
  • Colorado Super Lawyers®, Business Litigation (2006-2018); Personal Injury Defense: Products, Intellectual Property Litigation (2006-2011)
  • The Best Lawyers in America®, Product Liability Litigation - Defendants (2012-2018)
  • Chambers USA: America's Leading Lawyers for Business®, Litigation: General Commercial (2013-2017)
  • Lawdragon Top 3000 Leading Lawyers in America (2010-2011)
  • Super Lawyers®, Personal Injury Defense: Products - Business Edition (2011)
  • Super Lawyers®, Personal Injury Defense: Products - Corporate Counsel Edition (2009-2010)
  • International Who's Who of Professionals
  • Most Significant Defense Verdict, For the Defense, DRI Publication (1997)
  • Colorado Attorney Mentor Program, Mentor
  • Colorado Civil Justice League, Legal Advisory Board
  • Boys & Girls Club of Metro Denver, Volunteer
  • Colorado
  • Arizona
  • Supreme Court of Colorado
  • Supreme Court of Arizona
  • United States Supreme Court
  • United States District Court, District of Colorado
  • United States District Court, District of Arizona
  • United States District Court, Southern District of Texas
  • United States Court of Appeals, Ninth Circuit
  • United States Court of Appeals, Tenth Circuit
  • United States Court of Appeals, Eleventh Circuit