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William M. Cannon

William M. Cannon

Practice areas:

Personal Injury, Car Accidents, Trucking Accident, Defective and Dangerous Products

Practice Areas

Licensed since 1972

  1. Personal Injury: 50%
  2. Car Accidents: 25%
  3. Trucking Accident: 20%
  4. Defective and Dangerous Products: 5%

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Contact Info

Cannon & Dunphy Sc

595 N Barker Rd
Po Box 1750
Brookfield, WI, 53045-5928



WIGood Standing197203/16/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.

Avvo Contributions

Legal Answers


Award NameGrantorDate Granted
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2015
Super LawyerSuper Lawyers Magazine2015
Super LawyerSuper Lawyers Magazine2014
Super LawyerSuper Lawyers Magazine2013
Super LawyerSuper Lawyers Magazine2012
Super LawyerSuper Lawyers Magazine2011
Super LawyerSuper Lawyers Magazine2010
Super LawyerSuper Lawyers Magazine2009
Super LawyerSuper Lawyers Magazine2008
Super LawyerSuper Lawyers Magazine2007
RecognitionBest Lawyers in America2007
Super LawyerSuper Lawyers Magazine2006
RecognitionBest Lawyers in America2006
Super LawyerSuper Lawyers Magazine2005
RecognitionBest Lawyers in America2005
RecognitionBest Lawyers in America2004
RecognitionBest Lawyers in America2003
CertifiedNational Board of Trial Advocacy1985

Work Experience

TitleCompany NameDuration
Founding ShareholderCannon & Dunphy, S.C.1985 - Present


Association NamePosition NameDuration
Association of Trial Lawyers of America, Aquatic Injury Safety Litigation GroupBoard of Directors1987 - 1990
Association of Trial Lawyers of America, DPT Litigation CommitteeFormer Chair1984 - 1986
State Bar of WisconsinMemberN/A
Wisconsin Association for Justice (Wisconsin Academy of Trial Lawyers)MemberN/A
American Board of Professional Liability AttorneysDiplomateN/A

Legal Cases

Case NameOutcome
Theisen v. Red Arrow$17.2 Million jury verdict
Hegarty v. Beauchaine$25.2 Million Judgment
Buestrin v. Dr. Nicholas Owen$16 million Settlement

See all Legal Cases 


School NameMajorDegreeGraduated
University of Wisconsin Law School LawJD - Juris Doctor1972
Marquette University N/ABA - Bachelor of Arts1969