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William Charles O'Neill

William Charles O'Neill

Practice areas:

Business, Commercial, Construction & Development, Employment & Labor

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About Me

My firm has more than 500 lawyers in 12 global offices and 30 major legal practice areas.  I specialize in business and commercial litigation  I am currently the Editor of the ABTL Report, on the Executive Committee for the UC Hastings Board of Governors, and Trustee for the Orange County Celtic Bar.  Prior to joining the legal profession, I was President of my class in law school, externed at the California Supreme Court and 5th District Court of Appeal, and served as Chairman of Hastings' community outreach program.  


Photos and Videos

1755616 1297304204

Practice Areas

Licensed since 2007

  1. Business: 45%
    8 years, 20 cases
  2. Construction & Development: 25%
    8 years, 10 cases
  3. Commercial: 25%
    8 years, 20 cases
  4. Employment & Labor: 5%
    8 years, 5 cases

Attorney Endorsements

1 total

  • Shamoon Aziz Budhwani

    I endorse this lawyer.


    Shamoon Budhwani DUI & DWI Attorney
    Relationship: Fellow lawyer in community

Contact Info

Haynes & Boone, LLP

18100 Von Karman
Suite 750
Irvine, CA, 92612



Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Work Experience
TitleCompany NameDuration
AssociateHaynes and Boone, LLP2010 - Present
AssociateDubia, Erickson & Tenerelli, LLP2008 - 2010
AssociateRoss & Wersching, LLP2007 - 2008

Association NamePosition NameDuration
Association of Business Trial LawyersEditor - ABTL Report2012 - Present
Orange County Bar Association, Young Lawyers DivisionEducation Chair2010 - 2012

Publication NameTitleDate
Orange County Lawyer MagazineBeware Greentree's Bark2011
Association of Business Trial LawyersWhy Jury Polling Counts2009
Association of Business Trial LawyersAnother Arrow in the Quiver: Unique Aspects of Malicious Prosecution Claims2009

School NameMajorDegreeGraduated
UC Hastings COLN/AlawN/A
Stanford UnivN/AundergraduateN/A