Sean M. Callagy

Darryl Woo is a veteran trial lawyer who has successfully tried numerous cases to verdict, and concentrates his practice on patent litigation and other complex technology litigation, principally in the areas of semiconductors, information technology, life sciences and biotechnology. He has appeared as lead counsel in patent litigation across the country, including the ITC, dealing with technologies ranging from software to semiconductor fab equipment, materials chemistry, voice over IP, fiber...

C. Jean Ryan is Of Counsel in Buchalter’s San Francisco office and a member of the Tax, Benefits and Estate Planning practice group. Ms. Ryan concentrates her practice on general tax matters, which include tax planning for businesses, as well as tax and estate planning for high net worth individuals. With over four decades of experience, Ms. Ryan has a broad tax practice with many areas of expertise. She counsels her clients on corporate, partnership, individual, real estate, gift and e...

Scott Rechtschaffen is a lawyer recognized by Best Lawyers in the practice area of Employment Law - Management. Scott practices law in San Francisco, California Best Lawyers has recognized Scott Rechtschaffen since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Scott Rechtschaffen is held by other lawyers.

Cara Barrick is a lawyer recognized by Best Lawyers in the practice area of Employment Law - Management. Cara practices law in San Francisco, California Best Lawyers has recognized Cara Barrick since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Cara Barrick is held by other lawyers.

Jeffrey R. Loew is a lawyer recognized by Best Lawyers in the practice area of Litigation - Trusts and Estates. Jeffrey R. practices law in San Mateo, California Best Lawyers has recognized Jeffrey R. Loew since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jeffrey R. Loew is held by other lawyers.

Max L. Kelley is a lawyer recognized by Best Lawyers in the practice area of Admiralty and Maritime Law. Max L. practices law in San Francisco, California Best Lawyers has recognized Max L. Kelley since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Max L. Kelley is held by other lawyers.

Spencer’s practice focuses on catastrophic personal injury and wrongful death cases involving defective products, vehicular collisions, dangerous conditions of public and private property, and medical malpractice. Outside of his practice at Walkup, he also teaches at the University of California-Berkeley Law School as a lecturer in trial advocacy. In addition to his teaching, he directs Berkeley Law’s external trial competition program and coaches multiple trial advocacy teams. Un...

Mr. Saeltzer specializes in resolving large cases on behalf of seriously injured people by way of trial or settlement. He prides himself on holding powerful entities responsible for the wrongs they committed. Mr. Saeltzer’s meticulous approach to the preparation and trial of cases has resulted in over $100,000,000 in jury verdicts and settlements for his clients. Mr. Saeltzer began his legal career as a prosecutor in the United States Army. After graduating from the University of Califo...

Kahlil T. Yearwood is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Kahlil T. practices law in San Francisco, California Best Lawyers has recognized Kahlil T. Yearwood since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kahlil T. Yearwood is held by other lawyers.

Charles S. Birenbaum serves as the firm’s Chair of Northern California. Chuck is an experienced labor and employment attorney who focuses his practice on traditional labor and employment law matters, and has wide-ranging experience litigating in state and federal courts as well as various administrative agencies. He has testified on proposed legislation impacting entire industries before state legislative committees, and has interfaced and negotiated with labor organizations, politician...