Skip to main content


Not yet reviewed

About me

Kenneth Mansfield is Co-Managing Partner of M4 and practices in the litigation, health care, government contracts, government relations and insurance groups. 


Mr. Mansfield represents clients before State agencies, State trial courts on Oahu, Maui, Kaua'i, and Hawai'i Island, all State Appellate Courts, as well before the Federal District Court for the District of Hawai'i, the Ninth Circuit Court of Appeals and the U.S. Supreme Court. 


Mr. Mansfield is one of the firm’s three registered lobbyists.


Contact info

McCorriston Miller Mukai MacKinnon LLP

500 Ala Moana Boulevard
Five Waterfront Plaza, 4th Floor
Honolulu, HI, 96813

Practice areas


  1. Litigation: 25%
  2. Government: 20%
  3. Health Care: 20%
  4. Insurance: 15%
  5. Other: 20%
  6. More 

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Ryan Hembrow Engle

    Aggressive, pragmatic, professional. I'd highly recommend him as an attorney or local counsel. A great ambassador for his clients, his firm, and the profession.


    Ryan Engle Litigation Attorney
    Relationship: Worked together on matter

  • Joseph A. Stewart

    I worked with Ken on several bid protests of contracts in excess of $1Billion. Ken has an exceptionally quick mind and is a true strategic thinker. He also writes very well. I really enjoyed working with him and was grateful to have him on the same side.


    Joseph Stewart Litigation Attorney
    Relationship: Fellow lawyer in community


NJAdministrative - Not authorized to practice199706/25/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Litigation StarBenchmark Litigation2014
Best LawyerBest Lawyers2014
Super LawyerHawaii Super Lawyer2013
Litigation StarBenchmark Litigation2013
Hawaii Top 25 Super LawyerSuper Lawyers2012
Litigation starBenchmark Litigation2012
Litigation StarBenchmark Litigation2011
Work experience
TitleCompany nameDuration
Managing PartnerMcCorriston Miller Mukai MacKinnon, LLP2011 - Present
PartnerMcCorriston Miller Mukai MacKinnon, LLP2003 - 2013
AssociateMcCorriston Miller Mukai MacKinnon, LLP1998 - 2003
AssociateGreenbaum, Rowe, Smith, Ravin & Davis1997 - 1998
Association namePosition nameDuration
New Jersey State Bar AssociationMemberN/A
American Bar AssociationMemberN/A
Hawaii State Bar AssociationMemberN/A
Legal cases
Case nameOutcome
Sumitomo and Bombardier v. AnsaldoWin
InformedRx v. CVS CaremarkWin
See all legal cases 
School nameMajorDegreeGraduated
University of Pennsylvania Law SchoolLawJD - Juris Doctor1997
Middlebury CollegeEconomics and Marine ScienceBA - Bachelor of Arts1994