Ann T. Wilson

Mr. Rittereiser serves as a Managing Partner of HKM’s Seattle and Portland offices. He is also an experienced trial attorney. His practice focuses on employment law, complex civil litigation, and class actions. He has recovered more than $300 million dollars on behalf of workers including some of the largest wage and hour class actions in the United States. Mr. Rittereiser’s litigation practice disrupts industries challenging antiquated business practices that deprive workers of p...

BACKGROUND Jessica is an experienced IP attorney with a broad technical background in both the physical and life sciences. She is experienced in all phases of patent portfolio management with particular expertise in the assessment of patent portfolio strengths and weaknesses, technology transactions, and patent disputes within the pharmaceutical industry. Jessica received an M.S. in Biology from Massachusetts Institute of Technology in 2006, and a B.S. in Physics from University of Utah in 20...

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.

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

Denver has a unique practice that spans multiple disciplines, including environmental, real estate, business, litigation, trusts and estates, and taxation. In his environmental and real estate practice, Denver advises clients regarding regulatory compliance and cost recovery actions under the Washington Model Toxics Control Act (MTCA), assists clients in complex multi-party sites involving cleanup actions arising under state law and the Comprehensive Environmental Response, Compensation, and ...

Ambika Kumar is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Ambika, 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 Ambika is held by other top lawyers in the same geographic and legal practice area.

As the first in his family to attend college, Tom Vertetis was inspired to attend law school based on the encouragement of his father. It was the clearest path to try and make a big difference in helping others. If waking up at 3 a.m. and emailing colleagues to share a new legal strategy is an indication, Tom clearly found his calling. With a passionate commitment to assisting victims in complex personal injury cases, including medical malpractice, wrongful death, sexual abuse, school liabili...

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...

As a child, Elizabeth Calora learned firsthand the devastating impact of medical negligence when her uncle was paralyzed as a result of a physician’s gross error. When the medical provider failed to accept responsibility, her uncle was forced to hire a medical malpractice attorney who demanded accountability and obtained justice for her uncle. The resulting settlement allowed her uncle to live an independent and meaningful life, with access to adapted vehicles and modification of his ho...

Practice Emphasis and Experience Construction Business & Real Estate Commercial Litigation Government Contracts For more than 25 years, Douglas Oles has concentrated his practice on helping clients to avoid and resolve disputes on complex contracts relating to construction, supply, energy, real estate development and intellectual property licensing. Today, he is also increasingly involved as a neutral mediator and arbitrator in contract-based disputes. Mr. Oles has prepared, negotiated an...