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Karen O'Kasey
Employment Defense and Medical Malpractice Defense Trial Lawyer and Partner at Hart Wagner LLP
Karen O'Kasey is a distinguished attorney and partner at Hart Wagner LLP, based in Portland, Oregon. Her legal practice primarily focuses on defending employers and medical professionals in both state and federal courts across Oregon and Washington. She has extensive experience in handling various employment claims, medical malpractice cases, and tort claims against municipalities.13
Education and Career
- Juris Doctor (J.D.): Santa Clara University School of Law, 1986
- Bachelor of Arts (B.A.): San Francisco State University, magna cum laude, 1983
O'Kasey has been with Hart Wagner LLP since 2002, having previously worked as a partner at Schwabe, Williamson & Wyatt from 1993 to 2002. She began her legal career as an associate at the same firm from 1987 to 1993.13
Areas of Expertise
Karen O'Kasey's practice areas include:
- Civil Rights Defense
- Employment Litigation
- Health Law
- Human Resources Consulting & Compliance
- Legal Malpractice Defense
- Medical Malpractice Defense
- Product Liability Defense.14
Recognition and Awards
O'Kasey is highly regarded in her field, having received numerous accolades:
- Named one of the “Top 25” Women Lawyers in Oregon by Oregon Super Lawyers magazine for over a decade.
- Recognized as the Lawyer of the Year for Legal Malpractice Law in The Best Lawyers in America multiple times, including 2025.
- A Fellow of the American College of Trial Lawyers and a member of the American Board of Trial Advocates.123
Notable Cases
She has successfully defended various high-profile cases, achieving favorable verdicts for her clients. Some representative cases include:
- A $10 million medical malpractice case involving informed consent claims.
- A significant employment discrimination claim under the Americans with Disabilities Act resulting in a defense verdict.1
Professional Affiliations
O'Kasey is active in several legal organizations, including:
Through her extensive experience and recognized expertise, Karen O'Kasey continues to be a prominent figure in the legal community, particularly in employment and medical malpractice law.

