James S. "Jim" Coon

Julie Smith is an appellate lawyer who also specializes in advising trial attorneys on litigation strategy and in drafting and arguing complex motions. Before joining Cosgrave, she served as an Assistant Attorney General in the Trial and Appellate Divisions of the Oregon Department of Justice, where she twice received the department’s Outstanding Achievement Award. Prior to that, she clerked for the Honorable Virginia Linder of the Oregon Court of Appeals. Appellate services include: Re...

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...

David Matheson, a partner in the firm’s Business practice, brings value to clients by providing strategic and practical advice. He has more than 20 years of experience in counseling on corporate governance matters, raising capital through public and private equity and debt offerings, and acquiring and disposing of businesses and assets. David advises domestic and foreign public companies — including controlled companies and master limited partnerships — on their SEC and secu...

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.

Roy Tucker is an experienced business counselor and advisor who focuses his practice on public offerings, mergers and acquisitions, securities compliance and corporate governance and restructurings. Roy has represented issuers and underwriters in numerous public offerings and regularly advises corporate clients and private equity firms on mergers, asset sales and leveraged buyouts.

Jaimie has been a practicing attorney in the Portland metro area since 2012. She joined Black Helterline LLP in 2022 after four years working at a Portland insurance defense firm focusing on construction defect and general liability defense. Prior to that, Jaimie served as the first ever volunteer prosecutor for the Washington County District Attorney’s Office; worked for a Seattle-based firm focusing on lending litigation; and worked with Stuart M. Brown, a highly regarded business and...

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 accommodati...

Margot D. Seitz is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Margot D., 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 Margot D. is held by other top lawyers in the same geographic and legal practice area.

Edward Piper is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Trade Secrets Law. Edward, who practices law in Oregon City, Oregon, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Edward is held by other top lawyers in the same geographic and legal practice area.

Ron Hoevet is a shareholder and founding member of the firm of Hoevet Olson, PC. Ron has practiced in all areas of criminal defense and has litigated hundreds of criminal and civil cases in both state and federal court. He has also defended criminal cases in federal courts Washington, California, Idaho, Montana and Florida. Ron has an AV rating with Martindale Hubbell, which is the highest rating for both legal ability and professional standing in the legal community. He has been listed in Be...