Cooper Offenbecher

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.

Catharine Morisset is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Catharine, 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 Catharine is held by other top lawyers in the same geographic and legal practice area.

Linda Kelley Ebberson is one of Washington's preeminent divorce attorneys. An original member of Lasher Holzapfel Sperry & Ebberson, Linda is a skillful litigator with more than 30 years experience. Linda has a first-rate reputation with an outstanding track record in resolving disputes. Her Martindale-Hubbell rating has been the highest, AV preeminient, since 1997. She has been recognized by her peers as a "Super Lawyer" in Washington Law and Politics annually since 1999; as one of the T...

Darren Feider is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Darren, who practices law in Bellevue, Washington, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Darren is held by other top lawyers in the same geographic and legal practice area.

Maya Yamazaki is a top attorney recognized by Best Lawyers in the practice area(s) of Technology Law. Maya, 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 Maya is held by other top lawyers in the same geographic and legal practice area.

Carol Vaughn is a top attorney recognized by Best Lawyers in the practice area(s) of Elder Law, Family Law, Litigation - Trusts and Estates and Trusts and Estates. Carol, who practices law in Seattle, Washington, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carol is held by other top lawyers in the same geographic and legal practice area.

Clayton Graham helps clients buy, develop, and sell real estate, as well as navigate land development issues of all types. His projects range from single-site commercial uses to large infrastructure and essential public facility projects. Clayton has assisted clients on significant, high-profile, and contested development projects in the Puget Sound region and beyond. As part of DWT’s multidisciplinary land development team, Clayton helps clients site, permit, and develop their projects...

Bob Homchick is a health care regulatory lawyer, he counsels clients in areas such as physician self-referral (i.e., the federal Stark Law and its state law counterparts), regulatory compliance and fraud and abuse. Bob also regularly represents hospitals, physicians, ancillary services providers, and others in a wide variety of transactional matters including mergers, acquisitions and affiliations and the formation and operation of joint ventures. His extensive experience includes the develop...

David Clarke, a Partner in Perkins Coie’s national Business Practice, focuses on the representation of emerging growth companies, middle market businesses, public companies, venture funds and private equity funds. David's practice emphasizes mergers and acquisitions, private equity and growth equity transactions, venture capital financings, public offerings and corporate governance. David works with privately held clients at all stages of development, serving as outside general counsel ...

David Burman, a partner in the firm's Commercial Litigation practice, has more than 30 years of experience in litigation, including antitrust, appellate, class action, consumer protection, constitutional, media, patent and intellectual property, privacy, and other cases. He also counsels clients in these and other areas. He has worked on many high-profile cases, including two U.S. Supreme Court arguments, the trial contesting the 2004 Washington State Governor's election, Costco Wholesale Cor...