Matthew C. Casey

Chip Horner’s law practice focuses on defending medical negligence lawsuits, including high exposure birth trauma claims, ophthalmology, autism, failure to diagnose cancer, wrongful death and surgical matters. He is experienced in all aspects of health law. Chip’s clients range from large integrated health systems to solo practitioners, nurses, midwives, dentists, and many different allied health professionals. Chip also represents clients before licensing boards in Oregon and Was...

Heidi Mandt is a Portland, Oregon–based attorney who focuses on civil litigation involving product liability, professional liability, toxic torts, and insurance defense. She represents clients in state and federal courts in matters involving personal injury, commercial disputes, and insurance coverage. Heidi has tried more than twenty cases to verdict and has extensive courtroom experience handling claims involving product liability, medical and professional malpractice, and general lia...

Kurt C. Peterson is a Portland, Oregon–based attorney who focuses on civil litigation and trial work. He represents governmental entities, businesses, insurers, and individuals in matters involving aviation, personal injury, property disputes, construction defect, employment, and insurance coverage. Kurt has extensive trial experience, having tried more than 100 jury cases and over 70 arbitrations in Oregon and Washington. His practice includes representing clients in both state and fed...

Donna L. Lee is a top attorney recognized by Best Lawyers in the practice area(s) of Ethics and Professional Responsibility Law, Health Care Law and Medical Malpractice Law - Defendants. Donna L., who practices law in Portland, Oregon, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Donna L. is held by other top lawyers in the same geographic and legal practice area.

Kevin Mapes is a commercial litigator with more than 25 years of experience in state and federal courts in Oregon, Washington, and California. He represents plaintiffs and defendants in a wide variety of business disputes involving commercial lending, partnership disputes, general contract matters, construction disputes, and a wide variety of commercial real estate disputes. Mr. Mapes is also an experienced environmental litigator, and has represented clients in matters involving the federal ...

Shannon Lea Armstrong is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Shannon Lea, who practices law in Portland, Oregon, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shannon Lea is held by other top lawyers in the same geographic and legal practice area.

Renée Rothauge is a dynamic trial lawyer clients turn to when they are faced with high-stakes, complex business disputes. With nearly 30 years of trial experience and solid reputation for tenacious client representation in and out of the courtroom, she has earned her place among an elite group of renowned litigators. Chambers USA’s Guide to Lawyers and Law Firms calls her “brilliant.” One of her clients described Renée as “very intelligent, very articulat...

Yoona Park strives to embody the spirit of ”nunchi” (눈치), a Korean concept that recognizes the importance of reading the moods, tone, and goals of individuals within a group, and adjusting one’s actions to meet those group dynamics. Yoona is motivated by this interpersonal aspect of her collaborative efforts in the legal profession—including those with co-counsel, Keller Rohrback colleagues, and clients. Her leadership ability and passion for both teamwork and advocacy...

Peter D. Hawkes is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Peter D., who practices law in Portland, Oregon, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter D. is held by other top lawyers in the same geographic and legal practice area.

Lawrence B. Burke is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Lawrence B., who practices law in Portland, Oregon, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lawrence B. is held by other top lawyers in the same geographic and legal practice area.