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Selected for inclusion in Super Lawyers Editions from 2009 to the present. Peer reviewed rating of "Preeminent AV" highest rating for legal ability and ethical standards for 20+ consecutive years by Martindale-Hubbell. Designated "Fellow," by the Litigation Counsel of America, a trial lawyer honorary society composed of less than one-half of one percent of American lawyers who are selected by invitation only, based upon excellence, accomplishment, and superior ethical reputation at the trial and appellate levels.


WILLIAM D. CHAPMAN is a trial lawyer and partner with Cadden & Fuller LLP. Mr. Chapman has defended and recovered multimillion dollar jury verdicts and settlements for clients in state and federal courts in California and nationwide.


Mr. Chapman has tried cases before judges or juries in numerous California State and Federal Courts and the Federal Court in the Southern District of New York. Mr. Chapman has appeared before the California Courts of Appeal, United States Court of Appeals for the Second Circuit, Ninth Circuit and the US Court of Appeals for the Federal Circuit. He has represented a wide range of businesses of all sizes and entity types, in industries including real estate, business finance, nutraceuticals, computer software, building insulation products, self-insurance groups, automobile dealerships, distributorships, raw materials suppliers, etc. His clients have included Fortune 500 companies as well as startup businesses. He has represented individuals who have suffered injuries from accidents involving automobiles, boats, gym equipment, insurance bad faith, etc. His clients range from very local to as far away as Brazil, Italy and Russia.


Past Worldwide Chair, BYU Management Society, Regional Chair, BYU Management Society, Founder, Past Chapter Chair, South County Management Society, Former Chapter Chair, Orange County Management Association, Former Board Member, J. Reuben Clark Law Society - Orange County Chapter.




Languages spoken: Spanish

Photos and videos

341810 1290881832

Practice areas


  1. Litigation: 100%
    35 years, 100 cases



Hourly ($400/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

7 total 

Are you an attorney? Endorse this lawyer

  • Amy Elizabeth Martinez

    I endorse this lawyer.


    Amy Martinez General practice Attorney
    Relationship: Fellow lawyer in community

  • Clark Hansen Fielding

    William Chapman is a consummate professional, steeped in litigation experience. William is a man of tremendous character and ethics. I wholeheartedly endorse William.


    Clark Fielding Personal injury Attorney
    Relationship: Fellow lawyer in community

Contact info

Cadden & Fuller, LLP

144 Pacifica
Irvine, CA, 92618


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Southern California Super Lawyers 2013 - OC EditionSuper Lawyers Magazine2013
Southern California Super Lawyers 2012 - OC EditionSuper Lawyers Magazine2012
W. Lowell Benson Lifetime Achievement AwardBYU Management Society2011
Southern California Super LawyersSuper Lawyers Magazine2011
Southern California Super LawyersSuper Lawyers Magazine2010
Southern California Super LawyersSuper Lawyers Magazine2009
Work experience
TitleCompany nameDuration
PartnerCadden & Fuller, LLP2013 - Present
PartnerJulander, Brown & Bollard2010 - Present
PartnerSmith, Chapman & Campbell2001 - 2010
PartnerPeterson & Chapman1997 - 2001
PartnerChapman, Fuller & Bollard1987 - 1997
AssociateCallahan & Associates1985 - 1987
AssociateUre & Shupe1981 - 1985
Association namePosition nameDuration
Litigation Counsel of AmericaFellow2012 - Present
Orange County Bar AssociationMember1982 - Present
State Bar of CaliforniaMember1981 - Present
Los Angeles County Bar AssociationMemberN/A
Legal cases
Case nameOutcome
Chicony Power Technology Company, Limited v. Comarco, Inc.Verdict in favor of Comarco in the net amount of $9.7 million.
Merck Eprova, AG v. Gnosis S.p.A., et al.Trial conducted in June-July 2011. Waiting for a ruling by the court.
See all legal cases 
Publication nameTitleDate
Leader's Product Liability Law and Strategy"No Longer Willing to Settle, Firm Tries Novel Defense"N/A
School nameMajorDegreeGraduated
Pepperdine University School of LawLawJD - Juris Doctor1981
Brigham Young UniversityN/ABS - Bachelor of Science1978
Speaking engagements
Conference nameTitleDate
Renaissance V"How to Cross-Examine World Class Experts"2012
Monthly Breakfast Meeting"The Economic, Legal and Moral Advantages of Telling the Truth in Every Aspect of our Lives"2011
BYU Management Society Annual Leadership ConferenceMoral and Ethical Leadership2011