Colleen Badgley

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.

Mark Douglas Kamitomo is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs. Mark Douglas, who practices law in Seattle, Washington, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark Douglas is held by other top lawyers in the same geographic and legal practice area.

Thomas Breen is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Thomas, who practices law in Seattle, Washington, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas is held by other top lawyers in the same geographic and legal practice area.

Nicole MacKenzie is a Member in Williams Kastner’s Seattle office and serves on the firm’s board of directors. Her practice focuses on product liability and mass torts. Ms. MacKenzie manages several accounts, serves as local trial counsel for multiple clients and is a lead member of the National Coordinating Counsel team for several clients. She served as Vice Chair/Chair of the firm’s Products Liability and Mass Torts group from July 2015 through December 2020. Ms. MacKenzi...

Cory Claassen brings over 20 years of patent law experience to his practice, focusing on the preparation and prosecution of U.S. and foreign patents in the electrical, optical, and mechanical fields. Cory’s practice extends to patent infringement and validity opinions, patent portfolio management, and intellectual property strategy and counseling. He provides these services to clients across a diverse array of technologies, including semiconductor devices, electronics, display and imagi...

Stew Cogan is in his thirty-first year as a full-time arbitrator and mediator, following twenty years practicing primarily business, corporate, and real estate law. Stew has arbitrated more than 300 cases and mediated more than 3,500 cases. He is listed in The Best Lawyers in America in both the Mediation and Arbitration categories, and is Ranked Tier 1 in both categories in the Metropolitan Seattle area. He was named by Best Lawyers as the Arbitration Lawyer of the Year in Seattle in 2016, 2...

BACKGROUND Shoko’s practice focuses on preparing and prosecuting patent applications in electronics, telecommunications, optics, software, and mechanical engineering. Shoko received a B.S. in Physics from the University of Washington in 1998 and her J.D. from the University of Washington School of Law in 1997. EXPERIENCE Shoko collaborates extensively with her clients drafting and prosecuting patent applications in electronics, telecommunications, optics, medical devices, software, and ...

Scott Henderson is a business attorney whose clients include dentists, veterinarians and other health care professionals. He provides advice in such areas as practice transitions, partnerships, real estate and employment matters. Mr. Henderson’s representation includes the drafting of purchase and sale agreements, employment agreements, options to purchase, leases and similar documents. He also organizes professional practices into partnerships, corporations, limited liability companies...

Paul Tonella practices in Keller Rohrback's business and estate planning group, where he represents individuals, families, and businesses in tax and general legal matters. He brings a wide range of experience in entity formation, contracts, purchases and sales of companies, personalized estate planning and probate and trust administration.

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...