David A. Bateman

Margie Aoki collaborates with clients to develop strategies to protect their intellectual property, working closely with inventors to craft robust utility and design patent applications that highlight the client’s innovations. During examination, Margie encourages open communication with patent examiners to find the most efficient path towards allowance. Margie’s experience extends to freedom-to-operate and validity opinions, design-around strategies, and due diligence for portfol...

J.C. Ditzler is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. J.C., who practices law in Seattle, Washington, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J.C. is held by other top lawyers in the same geographic and legal practice area.

Darby Allen is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Darby, who practices law in Seattle, Washington, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Darby is held by other top lawyers in the same geographic and legal practice area.

Steve Koh chairs the firm's International Arbitration practice. In addition, Steve handles product liability, civil fraud and class action matters. He has represented clients such as The Boeing Company, OfficeMax , Boise Cascade Corporation, T-Mobile and Honeywell . Steve also acts as arbitrator in commercial matters.

Brent Bohan is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Brent, who practices law in Seattle, Washington, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brent is held by other top lawyers in the same geographic and legal practice area.

Professional Experience Kameron Kirkevold’s practice focuses on complex guardianship, probate and trust matters arising under Washington State’s Trust and Estate Dispute Resolution Act (TEDRA). He joined Helsell Fetterman in 2010 after two years as an associate in his father’s firm of Kirkevold Law Offices, Inc., and has been a partner at the firm since 2016. Kameron works with professional fiduciaries, individuals, and families dealing with simple and complex matters arisin...

Janet A. George is Of Counsel at the Pacific Northwest family law firm McKinley Irvin, PLLC. She has been practicing family law for over 35 years and is widely recognized as one of the top family law attorneys in Washington. Ms. George’s practice concentrates on complex, high asset and high income cases, including those involving property characterization, business valuations, and the distribution of multi-million dollar estates. She has represented high net worth individuals across dif...

Bradley W. Hoff is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Insurance Law. Bradley W., who practices law in Seattle, Washington, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bradley W. is held by other top lawyers in the same geographic and legal practice area.

Graehm Wallace, a partner with the firm's Litigation practice, has seventeen years of experience working in all areas of construction transactions, counseling and litigation. His work covers all aspects of contract drafting and negotiating, including preconstruction, architectural, engineering, construction-management, design-build, balance of plant (BOP), engineering, procurement and construction (EPC), turn-key, consultant, bidding, advice during construction, and claim prosecution and defe...

Gregg Barton, a partner in the firm’s Business practice, has 25 years of experience focusing on state and local taxes principally in Washington (including Seattle, Bellevue and Tacoma matters), Oregon and Alaska. His experience includes advising clients with respect to gross receipt, sales and use, net income, ad valorem , real estate excise and public utility taxes, seeking private rulings, handling administrative appeals and litigating in state courts.