John E. Casperson

Erin Riley knows that strong relationships are the key to complex cases.As a partner in Keller Rohrback’s Complex Litigation Group, Erin has allowed these collaborative and long-lasting relationships to inform her work for over 20 years. Since 2001, Erin’s practice has focused on representing employees and retirees in Employee Retirement Income Security Act (“ERISA”) actions involving defined contribution, defined benefit, and health benefit plans. Erin has worked on n...

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

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.

Michael Pfau, a Seattle-based lawyer with a national practice, has devoted a significant amount of his 30-plus year career to helping childhood sex abuse victims find justice, compensation, and closure through the legal system. He has brought hundreds of successful lawsuits on behalf of children—and adults who were sexually abused as children—against the predators and perpetrators that have hurt them, including the powerful institutions that ignored, covered-up, or acted in secrec...

Rainer Frank is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Rainer, who practices law in Tacoma, Washington, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rainer is held by other top lawyers in the same geographic and legal practice area.

Kelsey M. Sheldon is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Labor Law - Management. Kelsey M., who practices law in Bellevue, Washington, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kelsey M. is held by other top lawyers in the same geographic and legal practice area.

John Rosecrans is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. John, who practices law in Kirkland, Washington, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

Ronald Berenstain, a partner in the firm's Litigation practice, has been lead counsel in scores of high-stakes securities and corporate governance cases for more than 30 years. His practice is focused on representing public companies and their officers and directors, as well as underwriters and accountants in shareholder class action litigation, shareholder derivative litigation, merger and acquisition litigation, Employee Retirement Income Security Act (ERISA) class action litigation, Securi...

Andrew provides sophisticated estate, gift, generation skipping, and other tax-optimized wealth transfer strategies, business succession planning, trust administration, as well as customized “family office” solutions to high-net worth individuals, families, and private businesses across the Pacific Northwest. He serves as outside general counsel to many private businesses, guiding legal strategy for significant and complex matters associated with the business and legal affairs of ...

Sheryl Willert is a Member in the Seattle office of Williams Kastner, where she chairs the firm’s Labor & Employment Practice Group and leads its Diversity Committee. She previously served as the firm’s Managing Director from 1996–2001 and again from 2006–2013, and she continues to serve on the firm’s board of directors. Sheryl’s legal practice focuses on counseling, investigations, and dispute resolution across a broad spectrum of employment law matter...