Karen O’Kasey

Karen O’Kasey

Portland, OR recognized lawyers icon Recognized in Best Lawyers since 2012
Hart Wagner LLP

9 Best Lawyers awards

Hart Wagner LLP logo

Awarded Practice Areas

Professional Malpractice Law - Defendants Ethics and Professional Responsibility Law Legal Malpractice Law - Defendants Medical Malpractice Law - Defendants
*Named the "Lawyer of the Year" in this practice area in the 2026 edition in Portland, OR.

Biography

Karen O’Kasey’s trial practice focuses on defending employers and medical professionals in state and federal courts in both Oregon and Washington. She has represented employers in all types of employment discrimination claims brought in federal and state court.

In addition to defending private employers, Ms. O’Kasey has extensive experience defending municipalities against all types of tort claims, including Section 1983 claims, First Amendment claims, and public accommodation claims brought under the Americans with Disabilities Act.

Ms. O’Kasey’s medical negligence practice focuses primarily on defending medical professionals involved in pharmaceutical or medical device litigation.

PRACTICE EMPHASIS
  • Employment Defense
  • Medical Malpractice Defense
    PROFESSIONAL PUBLICATIONS AND SPEECHES
    • Trial Skills
      Oregon State Bar CLE Program, 18th Annual Litigation Institute, 2011
    • Oregon Pleadings and Parties: Tips and Traps for the Unwary
      Oregon State Bar CLE Program, 2010
    • OEC 104 In The Wake of Marcum v. Adventist Health
      Oregon Association of Defense Counsel Annual Convention, 2009
    • Trial Advocacy in Action
      Oregon State Bar CLE Program, 16th Annual Litigation Institute, 2009
    • Trial Evidence in Employment and Civil Rights Cases
      Oregon State Bar CLE Program, 2007
    • Discovery and Punitive Damages Motions
      Oregon State Bar CLE Program, 2007
    • Practical Considerations in Using Expert Witnesses
      Oregon State Bar CLE Program, 12th Annual Litigation Institute, 2005
    • Powerful Motion Practice-Discovery Motions
      Oregon State Bar CLE Program, 2004
    • Oregon Civil Pleading and Practice, Chapter on Interpleader
      Oregon State Bar Publication, 1998
    • Oregon Damages, Chapter on Damages in Admiralty
      Oregon State Bar Publication, 1990, 1992, 1995
    • An In-Depth Look at Title I of the ADA
      Oregon State Bar Americans with Disabilities Act CLE Program, 1996, 1997
    • Dentist Benefits Insurance Company
      Risk Management Instructor, 1994 – 2002
    Hart Wagner LLP

    9 Best Lawyers awards

    Hart Wagner LLP logo

    Overview

    • Santa Clara University, J.D., graduated 1986
    • San Francisco State University, B.A., graduated 1983

    • Oregon, United States
    • Washington, United States

    • American Board of Trial Advocates - Associate
    • American College of Trial Lawyers - Fellow
    • Litigation Counsel of America - Fellow
    • Oregon, United States
    • Washington, United States
    • American Board of Trial Advocates - Associate
    • American College of Trial Lawyers - Fellow
    • Litigation Counsel of America - Fellow
    • Santa Clara University, J.D., graduated 1986
    • San Francisco State University, B.A., graduated 1983

    Client Testimonials

    Awards & Focus

    Lawyer of the Year Badge - 2026 - Professional Malpractice Law - Defendants Lawyer of the Year Badge - 2025 - Legal Malpractice Law - Defendants Lawyer of the Year Badge - 2025 - Medical Malpractice Law - Defendants Lawyer of the Year Badge - 2023 - Legal Malpractice Law - Defendants Lawyer of the Year Badge - 2021 - Professional Malpractice Law - Defendants Lawyer of the Year Badge - 2019 - Legal Malpractice Law - Defendants Lawyer of the Year Badge - 2017 - Legal Malpractice Law - Defendants Lawyer of the Year Badge - 2015 - Legal Malpractice Law - Defendants
    Named "Lawyer of the Year" by Best Lawyers® for:
    • Professional Malpractice Law - Defendants, Portland, OR (2026)
    • Legal Malpractice Law - Defendants, Portland, OR (2025)
    • Medical Malpractice Law - Defendants, Portland, OR (2025)
    • Legal Malpractice Law - Defendants, Portland, OR (2023)
    • Professional Malpractice Law - Defendants, Portland, OR (2021)
    • Legal Malpractice Law - Defendants, Portland, OR (2019)
    • Legal Malpractice Law - Defendants, Portland, OR (2017)
    • Legal Malpractice Law - Defendants, Portland, OR (2015)
    Recognized in The Best Lawyers in America® 2026 for work in:
    • Ethics and Professional Responsibility Law
    • Legal Malpractice Law - Defendants
    • Medical Malpractice Law - Defendants
    • Professional Malpractice Law - Defendants
    Additional Areas of Practice:
    • Litigation - Municipal
    Awards:
    • Oregon Super Lawyers, 2006 - present
    • "Top 25" Women Lawyers, Oregon Super Lawyers magazine, 2011 - present
    • AV Preeminent 5.0 out of 5 Peer Review Rated by Martindale-Hubbell
    • Lawyer of the Year - Legal Malpractice Defense - Portland, OR by Best Lawyers in America, 2015
    • Local Litigation Star, Benchmark Litigation, 2015

    Case History

    Cases
    • Christopherson v. URCOG
    Douglas County Circuit Court Case No. 06-CV-3112
    Negligence, breach of contract, promissory estoppel and fraud claim. Defense verdict.
    • George v. City of Newberg
    United States District Court Case No. 03-CV-l 80-MO (Portland Division)
    Wrongful discharge claim under the Americans with Disabilities Act, retaliation and hostile work environment claims under the Americans with Disabilities Act, wrongful discharge claim under ORS 659A.100. Defense verdict.

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