Katherine M. Zelko

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.

Christopher Rich is a partner in the firm's Environment, Energy & Resources practice. He focuses on complex environmental cleanup compliance and litigation under CERCLA and state Superfund laws, resolution of state and federal governmental enforcement actions, and RCRA, Clean Water Act and Clean Air Act compliance and permitting.

Tom Grim is a partner of the firm and focuses his practice primarily on energy and public utility law. Mr. Grim represents clients in commercial transactions, administrative contested cases and judicial proceedings. Tom chaired the firm's energy practice group and has significant experience in all areas of energy law, including the following recent matters: Represents public utility clients as general counsel in all legal matters relating to the utility. Represented a public utility in the jo...

John Robb is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice and Criminal Defense: White-Collar. John, who practices law in Portland, Oregon, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

John Gilroy is a founding partner at Gilroy Napoli Short, LLC, located in Portland, Oregon. Before starting the firm, he gained substantial experience as a Deputy District Attorney in the Washington County District Attorney’s Office, known for being one of Oregon's largest prosecutor’s offices. There, John prosecuted an array of criminal cases ranging from misdemeanors to serious felonies. This role afforded him extensive insight into the criminal justice system, which he leverage...

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 ...

Jesse D. Lyon is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law and Mergers and Acquisitions Law. Jesse 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 Jesse D. is held by other top lawyers in the same geographic and legal practice area.

Katherine VanZanten is an estate planning and tax attorney who has significant experience in estate planning, business and tax planning, charitable remainder trusts and establishing charitable organizations. Katherine has an active estate planning practice helping clients and their families complete their estate planning goals. She regularly advises fiduciaries on their duties with respect to trust and probate administration.

Everett Jack (EJ) focuses his practice on litigation, including complex corporate and commercial litigation, officer and director defense, employment, and insurance coverage. EJ works out of the New York and Portland offices of the firm. He has served as the vice-chair of the Litigation department and spent six years on the firm’s Executive Committee. He also previously served as the chair of the firm’s Compensation Committee. EJ’s diverse trial practice includes a wide rang...

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...