Carl Peterson

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...

Greg Hendershott offers clients first-chair litigation and trial experience in a range of employment matters, including class action wage and hour matters, employment discrimination, bonus and commission pay, and noncompete/trade secret cases. Greg also handles labor matters including collective bargaining, unfair labor practice charges, arbitrations and strikes. Greg also advises employers in all areas of legal compliance, from compensation and executive employment agreements to disability, ...

Patricia Anderson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Patricia, who practices law in Seattle, Washington, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patricia is held by other top lawyers in the same geographic and legal practice area.

Mallory Allen is a devoted legal advocate for physically and emotionally injured people. She is a uniquely talented strategist, effective negotiator, and savvy trial lawyer. She has tried numerous cases to verdict in both state and federal courts, logging several seven- and eight-figure awards for her clients—victims of medical malpractice, dental malpractice, sex abuse, and other personal injuries. Mallory prioritizes and takes pride in putting clients at ease throughout the legal proc...

John Denkenberger is the managing member of COJK, a member of the firm's executive committee, and chair of the litigation practice group. John has successfully litigated patent, trademark, trade secret, and unfair business competition issues in federal and state courts. He has also successfully litigated AIA post-grant challenges, including inter partes review, before the Patent Trial and Appeal Board. In addition to his litigation practice, John also advises clients on foreign and domestic p...

Ako Miyaki-Murphy is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Ako, 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 Ako is held by other top lawyers in the same geographic and legal practice area.

Karen Boxx is currently of counsel with Keller Rohrback L.L.P. She focuses her practice on estate planning and consulting in probate, trust, and estate tax matters. Since 1997, Ms. Boxx has been on the faculty of the University of Washington School of Law, where she teaches in the areas of wills and trusts, estate and gift tax, community property, and estate planning. Before joining the faculty, she was in private practice for fourteen years, representing clients in estate planning, probate, ...

BACKGROUND Kevin Costanza specializes in mechanical patent prosecution, trademark clearance and registration, and intellectual property licensing. He received a B.S. in Engineering from the University of California at Irvine in 1990, concentrating in mechanical engineering and material sciences. He received his J.D. (cum laude) from Seattle University School of Law in 1995. EXPERIENCE After receiving his bachelor’s degree, Kevin worked as an engineer with the Irvine, California office o...

Kathleen M. O'Sullivan is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Bet-the-Company Litigation and Commercial Litigation. Kathleen M., who practices law in Seattle, Washington, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathleen M. 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...