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Williams Kastner Member

Heidi L. Mandt

Heidi L. MandtMember
Bar Admissions

Washington

Oregon

Idaho

U.S. Court of Appeals
9th Circuit

U.S. District Court
Eastern District of Washington
Western District of Washington
District of Oregon
District of Idaho

Heidi L. Mandt

About

Heidi Mandt is a litigator defending clients in product liability, medical and other malpractice/professional liability claims, and toxic torts. Her practice covers general insurance defense and insurance coverage matters as well. She has tried more than twenty cases to verdict in both state and federal courts ranging from product liability to personal injury and commercial claims.

In addition, Heidi has significant experience handling complex matters, including construction liability and breach of contract claims, catastrophic personal injury and death cases, and first- and third-party insurance claims. Her experience and success in the courtroom has established her as a leader in major cases with high monetary exposure.

As such, she has regularly defended individuals, retail establishments, construction companies, automotive and commercial truck manufacturers and chemical companies in personal injury and product liability claims, as well as companies involved in commercial disputes. She has been recognized by The Best Lawyers in America® every year since 2017.

Professional Experience

  • Williams Kastner, Member | 2017 – Present

Memberships

  • Member, International Association of Defense Counsel
    • Member, Membership Committee; Chair, 2021-2023
    • 2018 Mid-Year Meeting CLE Steering Committee
    • Medical Liability Roundtable, Chair, 2024
    • Medical Defense and Health Law, Publications Vice-Chair
  • Volunteer, The Leukemia & Lymphoma Society
    • Former Member, Board of Directors, OSWIM Chapter; Coach, Captain & Mentor, Team in Training Program
  • Member, Oregon State Bar, Litigation Section
  • Chair, USLAW Medical Law Practice Group

Recognitions & Awards

  • The Best Lawyers in America©
    • Listed in The Best Lawyers in America for Personal Injury Litigation – Defendants (2024)
    • Listed in The Best Lawyers in America for Product Liability Litigation – Defendants (2017-2024)
  • Named as a “Rising Star” in Oregon Super Lawyers
    • General Litigation, 2008

Education

  • Willamette University
    College of Law, J.D., 1995
  • Washington State University
    B.S., Psychology, cum laude, 1990
  • Graduate Certificate, Foundations of Leadership
    Washington State University Elson S. Floyd College of Medicine, 2024
  • Candidate, Masters of Healthcare Administration and Leadership
    Washington State University Elson S. Floyd College of Medicine
    Anticipated Graduation, 2025

Presentations & Seminars

  • Speaker, “When is a Claim Not a Claim? To Disclose or Not to Disclose: The Lethal “Knowledge of Circumstances; and, The “Interrelated Wrongful Acts” Provision: 6 Degrees of Separation,” USLAW Professional Liability Exchange, Jersey City, NJ, May 2018.
  • Speaker, “Ensuring Your Work Product Remains Your Own in Hiring and Working with Experts,” Oregon Association of Defense Counsel (OADC) Annual Convention, 2015.