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Diane D. Hastert

Honolulu, HI

Trusted adr attorney serving Honolulu.

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Diane D. Hastert is an attorney based in Honolulu, HAWAII. The practice focuses on ADR, Business, and Estate Litigation.

Based in
Honolulu, HAWAII
Experience
attorney
Known for
ADR · Business · Estate Litigation
  • Handles ADR, Business, and Estate Litigation matters from Honolulu, HAWAII.
  • Recognized with Best Lawyers in America — Arbitration (2026).

About Diane D. Hastert: Diane D. Hastert is an attorney based in Honolulu, HAWAII. The practice focuses on ADR, Business, and Estate Litigation.

Areas of practice

Practice focus

Diane D. Hastert represents clients in Honolulu, Hawaii across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Diane D. Hastert

Listed in The Best Lawyers in America and Super Lawyers, Diane’s practice focuses on complex litigation and dispute resolution. Prior to joining the firm in 1978, she was an extern to the Honorable Herbert Choy, Circuit Judge, Ninth Circuit Court of Appeals. Diane is involved in a number of professional and community activities, servicing on the Disciplinary Board of the Hawaii Supreme Court, as a national director of Easter Seals, Inc., as well as a director of Easter Seals Hawaii and the Easter Seals of Hawaii Foundation. An avid golfer, Diane is married to Mark H. Hastert. Their daughters, Shanna Kathleen Williams and Hallet Anne Smith, live in Naples, New York and Alexandria, Virginia, respectively.

Education
  • University of Hawaii, William S. Richardson School of Law (J.D. 1978)
  • University of Washington (B.A. Political Science/Education 1966)
    Bar Admissions
    • State of Hawaii 1978
    • United States District Court for the District of Hawaii 1978
    • United States Supreme Court 1979
    • United States Court of Appeals for the Ninth Circuit 1979
    • United States Court of Federal Claims 1979
      Professional and Community Affiliations
      • Adjunct Professor, William S. Richardson School of Law (Appellate Advocacy, 1989)
      • Advisory Committee to the American Institute of Architects/RUDAT (1974-75)
      • Aloha United Way (Director 2005-2008)
      • Alternative Economic Futures for Hawaii (Commerce Task Force 1973-74)
      • American Bar Association (Host Committee 1989)
      • Board of Bar Examiners, Hawaii Supreme Court (1992-present)
      • Civil Justice Reform Act Advisory Committee for the United States District Court for the District of Hawaii (Vice-chair)
      • Citizens’ Advisory Commission to the Capitol District (1973-74)
      • Committee Supporting Federal Judicial Independence (2000-present)
      • Disciplinary Board of the Hawaii Supreme Court (2002-present)
      • Disciplinary Board Hearing Officer (1990-2002)
      • Easter Seals Hawaii (President 1993-95 & Director 1989-2002; 2004-present) (President’s Award 2004, Laulima Award 2003, Chairman’s Award 1993; Chairman’s Award 2004)
      • Easter Seals Hawaii Foundation (Founding Director; President 2001-2003; Chairman 2003-2007; Director 2001-Present)
      • Easter Seals, Inc.National Board of Directors, (2005 - present; National President’s Council Chair, 2007 - present)
      • Federal Magistrate Merit Selection Panels (1987; 1999)
      • Friends of the William S. Richardson School of Law (Director 2004 - present)
      • Goodwill Industries of Hawaii, Inc. (Director 1980-91; Volunteer of the Year 1985)
      • Hawaii Appellate Mediation Program (Mediator 2010 - present)
      • Hawaii Defense Lawyers Association (Director, Secretary/Treasurer 1994-present)
      • Hawaii Institute for Continuing Legal Education (Director, 1987-94)
      • Hawaii Judicial Foresight Congress (1991)
      • Hawaii State Bar Association (Secretary 1987; Director 1985-89)
      • Hawaii Supreme Court Committee on Code of Judicial Conduct (1991-93)
      • Hawaii Supreme Court Committee on Model Rules of Professional Conduct (1989-94)
      • Hawaii Supreme Court Committee on Professionalism (1989)
      • Hawaii Theatre Center (Director 1989-1994)
      • Hawaii Women’s Legal Foundation (1993-present)
      • Hawaiian Humane Society (Director 1995-2002)
      • Junior League of Honolulu
      • League of Women Voters (President 1973-75)
      • Meritas Law Firms World Wide (Founding Director; Vice-Chair 1999-2002)
      • Oahu Traffic Safety Council (1986-90)
      • Oahu Development Conference (1980-86)
      • Ninth Circuit Judicial Conference (Appointed Hawaii Delegate 1985-88; 1997-2000)
      • Ninth Circuit Senior Advisory Selection Panel (Appointee 1988-92)
      • Super Lawyers (2008 - present)
      • The Best Lawyers in America (2000 - present)
      • The Garden Club of America (2005 - present)
      • The Garden Club of Honolulu (Director 2006 - present)
      • United States District Court Judicial Conference (Delegate 1990-2003)
      • United States District Court Local Rules Committee (Appointee 1988-95)
      • United States District Court Panel for Review of Criminal Justice Act Panel Fees & Costs, Lawyer Representative for District, Panel Member (1999-2000)
      • William S. Richardson School of Law Alumni Association (Director 2004 - present)

    Credentials

    Education

    • University of Hawaii at Manoa

      J.D. · 1978

    Recognition

    Awards & honors

    • Best Lawyers in America — Arbitration

      2026

    • Best Lawyers in America — Commercial Litigation

      2026

    • Best Lawyers in America — Litigation - Real Estate

      2026

    • Best Lawyers in America — Additional Areas of Practice:

      2026

    • Best Lawyers in America — Media Law

      2026

    • Best Lawyers in America — Special Focus:

      2026

    • Best Lawyers in America — Civil Litigation

      2026

    • Best Lawyers in America — Complex Litigation

      2026

    • Best Lawyers in America — Insurance

      2026

    Locations

    Office locations

    Main office

    1003 Bishop Street

    Honolulu, Hawaii 96813

    Open in Google Maps

    Client feedback

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    Frequently asked

    Common questions

    • What areas of law does Diane D. Hastert practice?

      Diane D. Hastert focuses on ADR, Business, Estate Litigation, Litigation, and Real Estate.

    • Where is Diane D. Hastert located?

      Diane D. Hastert primarily serves clients in Honolulu, Hawaii, with an office at 1003 Bishop Street.

    • Is Diane D. Hastert a verified attorney?

      Diane D. Hastert's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

    • How can I schedule a consultation with Diane D. Hastert?

      You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 808-531-8031.