Hendrik Pretorius

Jennifer Payseno is a partner at McKinley Irvin with more than 30 years of experience practicing family law. She represents clients in a wide range of matters, including divorce, child custody, child support, relocation, and complex, high-asset cases involving closely held businesses and substantial financial assets. Known for her thoughtful and strategic approach, Jennifer combines meticulous preparation with strong courtroom advocacy and practical problem-solving. Her practice is grounded i...

John Whitaker is a litigator who counsels clients on the protection and enforcement of intellectual property rights, including patents, copyrights, trademarks, and trade secrets. John has served as trial counsel in several cases involving various technologies and forms of intellectual property rights. He routinely represents technology clients in the software, medical device, and telecommunications industries, and he also helps artists and authors to protect their original works. John has rep...

Rory D. Cosgrove is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Rory D., 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 Rory D. is held by other top lawyers in the same geographic and legal practice area.

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

Stewart Landefeld, partner and Chair of the firm's Business practice, has 30 years of experience counseling companies and boards in the areas of corporate governance, securities compliance, mergers and acquisitions, public offerings, private equity investments and venture capital. Stewart has provided corporate governance and other general corporate counsel to dozens of leading companies, including Microsoft Corporation, Costco Wholesale Corporation, T-Mobile, PetSmart Inc., Orbitz (Audit Com...

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...

Mica D. Klein is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Mica D., 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 Mica D. is held by other top lawyers in the same geographic and legal practice area.

Chun Ng is a partner in the Intellectual Property practice based in both Seattle and Taipei. Chun’s practice involves providing strategic intellectual property counseling, patent diligence and enforcement, and litigation support to some of the most innovative companies in the world. His clients include HTC Corp., Monolithic Power Systems Inc., Intel, Microsoft Corporation, TriQuint Semiconductor Inc., and Lattice Semiconductor Corporation. For these companies and others, he has handled ...

Leta Rae is a member at Chamberlain & Rae PLLC, with offices in Bellingham and Seattle, Washington. She earned her law degree from Santa Clara University School of Law and has been licensed to practice law in Washington State since 2007. Ms. Rae’s practice focuses primarily on family-based immigration, including spousal and fiancé(e) petitions and waivers of inadmissibility. She also regularly guides clients through the naturalization process. A dual US and Canadian citizen, ...

Traeger Machetanz is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Traeger, who practices law in Seattle, Washington, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Traeger is held by other top lawyers in the same geographic and legal practice area.