Keith M. Casto

Sarah Arnott is a Partner at Van Voorhis & Sosna LLP in San Francisco, California, where she represents clients in a wide range of Family Law matters . She was certified by the State Bar of California Board of Legalization in Family Law in 2015 and is trained in Collaborative Divorce. Sarah previously served as Chair of the Family Law Section of the San Francisco Bar Association’s Barristers Club in 2013 and currently serves as Secretary of the San Francisco Bar Association Family L...

Craig Martin's practice includes representing clients in SEC enforcement and DOJ matters, corporate investigations, and private securities litigation. In the last five years, Mr. Martin has conducted more than a dozen internal corporate investigations involving complex accounting and disclosure issues, whistleblower claims, and potential violations of the Foreign Corrupt Practices Act (FCPA). Mr. Martin serves as personal counsel for executives and directors in SEC and DOJ matters involving a...

David Egdal is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. David practices law in San Francisco, California Best Lawyers has recognized David Egdal since 2023. 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 David Egdal is held by other lawyers.

Brent Wisner is the managing partner and lead trial attorney at Wisner Baum, where he focuses his practice on complex, high-stakes litigation, including complex and multidistrict litigation, class actions, toxic torts, and products liability cases. Recognized as one of America’s 50 Most Influential Trial Lawyers by Trial Lawyer Magazine, Brent has built a reputation for taking on large corporations in high-stakes litigation and winning significant verdicts and settlements for his client...

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...

Ben Riley is a Principal of the firm and serves on its Executive Committee. He has tried nearly 30 cases to verdict including jury trials, court trials, and complex arbitrations. His practice focuses on Intellectual Property Litigation, including patents, trade secrets, copyrights, trademarks and license disputes. He also has an active practice in Business Litigation, including class action defense, defense of “consumer claims” under the Lanham Act and unfair competition statutes,...

Veronica Cerruti is a lawyer recognized by Best Lawyers in the practice areas of Tax Law and Trusts and Estates. Veronica practices law in San Francisco, California Best Lawyers has recognized Veronica Cerruti 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 Veronica Cerruti is held by other lawyers.

Elizabeth Day is a trial attorney with Bunsow De Mory LLP in Redwood City, California . Her practice focuses on complex intellectual property and patent disputes , representing clients in federal district courts throughout the United States and before the International Trade Commission. Her work centers on matters involving Litigation - Intellectual Property, Litigation - Patent, and Patent Law. For nearly three decades, Elizabeth has handled high‑stakes technology disputes involving a wide r...

Donald P. Sullivan is a lawyer recognized by Best Lawyers in the practice areas of Employee Benefits (ERISA) Law and Employment Law - Management. Donald P. practices law in San Francisco, California Best Lawyers has recognized Donald P. Sullivan 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 Donald P. Sullivan is held by other lawyers.

Cecily Barclay focuses her practice on land use and entitlements, real estate acquisition and development and local government law. She regularly assists landowners, developers and public agencies throughout Northern California in all aspects of acquisition, entitlement and development of land, including land use application processing, drafting and negotiating purchase and sale agreements, negotiating and securing the approval of development agreements, general plan amendments, specific plan...