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Bob has practiced complex business and tax litigation and white collar criminal defense for more than forty years. He assists companies and individuals embroiled in major government investigations and performs internal corporate investigations on their behalf.

Bob tries “bet the company” cases in federal and state courts, and his white collar criminal defense practice is broad. He has successfully defended cases involving federal antitrust laws, securities violations, environmental crimes, health care fraud, tax crimes, banking fraud, civil and criminal false claims cases (including qui tam actions), and the Foreign Corrupt Practices Act. Bob has also successfully defended a number of high profile cases on behalf of political figures and professional athletes, including Tonya Harding.

Before entering private practice, Bob entered the Criminal Division of the U.S. Department of Justice under the Honors Graduates Program in 1975. He served as Assistant U.S. Attorney for the District of Oregon from 1979 to 1987, and for most of that time was Chief of that office’s Criminal Division.

Professional Activities

  • American College of Trial Lawyers, Fellow, 2003-present
  • Federal Judicial Selection Committee
    • Chair, 1994, 1997
  • Ninth Circuit Judicial Conference Oregon District Delegation, Chair, 2007
  • Oregon State Bar
    • Litigation Section, Executive Committee Chair, 1996-1997
    • Legal Ethics Committee, Member, 1986-1990

Community Activities

  • Catholic Charities of Oregon, Former Board Member 
  • St. Andrew's Legal Clinic, Former Board Member
  • The Madeleine School, Former School Board President, Advisory Council



News & Insights


Speaking Engagements

Past Appearances



  • Oregon
  • District of Columbia
  • U.S. District Court, District of Oregon
  • U.S. District Court, District of Columbia
  • U.S. Court of Appeals for the 4th Circuit
  • U.S. Court of Appeals for the 5th Circuit
  • U.S. Court of Appeals for the 9th Circuit
  • U.S. Tax Court
  • U.S. Supreme Court


  • J.D., University of Notre Dame Law School (cum laude), 1975
  • B.A., University of Notre Dame (cum laude), 1972

Honors & Recognition

  • Chambers USA (Oregon) Leading Individual, Litigation: General Commercial
  • The Best Lawyers of America© Bet-the-Company Litigation, Commercial Litigation, Criminal Defense: General Practice, Criminal Defense: White-Collar, Antitrust Litigation, and Securities Litigation, 1995-present
    • Best Lawyers® "Lawyer of the Year" in Criminal Defense: White-Collar, 2011, 2015, 2019
  • Oregon Super Lawyers list, 2006-2021
    • Top 50 Lawyers, 2007-2017
    • Super Lawyers Business Edition, 2014-2015
    • Oregon Super Lawyers magazine, Cover Feature: "Hometown Hero, How Robert Weaver Took Down the Rajneesh Cult," 2012 
  • ACLU Foundation of Oregon Civil Liberties Award for pro bono legal services to Guantánamo detainees, 2009
  • Portland Monthly's guide to the best lawyers in the Portland metropolitan area, 2006
  • Oregon Chapter of the American Jewish Committee Judge Learned Hand Award for "contributions in the finest tradition of the legal profession," 2006
  • Multnomah Bar Association Professionalism Award, 2004
  • Martindale-Hubbell AV Preeminent rating
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