Heidi Keefe

James J. Masetti is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. James J., who practices law in Palo Alto, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James J. is held by other top lawyers in the same geographic and legal practice area.

Thomas J. Ivey is a top attorney recognized by Best Lawyers in the practice area(s) of Securities / Capital Markets Law. Thomas J., who practices law in Palo Alto, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas J. is held by other top lawyers in the same geographic and legal practice area.

Mark Selwyn is a partner in the Litigation/Controversy Department. He joined the firm in 1994. Mr. Selwyn’s practice focuses on intellectual property litigation. Major corporations have relied on him to litigate biomedical, electrical, chemical, mechanical, and business method patents involving a diverse array of technologies, including wireless communications, electronic commerce, digital cameras, solid state disk drives, location sensing, biosensors, water and wastewater filtration, i...

With more than 15 years of immigration law experience, Regina Knoll represents a diverse group of people and business entities. Ms. Knoll’s experience includes representing U.S. and foreign companies spanning across all sizes and industries, foreign investors, professionals, people of extraordinary ability in the arts, sciences, business, and education, religious workers, medical professionals, performers and athletes, family members of U.S. citizens and residents, victims of violence (...

Jessica Valenzuela is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Securities. Jessica, who practices law in Palo Alto, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessica is held by other top lawyers in the same geographic and legal practice area.

Armando Castro is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Armando, who practices law in Palo Alto, California, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Armando is held by other top lawyers in the same geographic and legal practice area.

Jeffrey E. Essner is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Real Estate. Jeffrey E., who practices law in San Jose, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey E. is held by other top lawyers in the same geographic and legal practice area.

Christina Pearson is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Christina, who practices law in Palo Alto, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christina is held by other top lawyers in the same geographic and legal practice area.

A member of the trial bar for over 50 years, Jim has unparalleled experience and skill in preparing and presenting cases for adjudication – whether by jury, judge, arbitrator, mediator or the parties themselves. He represents Silicon Valley companies with commercial, trade secret and intellectual property issues. Jim also represents individuals in a wide variety of matters, including civil rights actions, employment disputes, family law and criminal defense.

When a company or its leaders are at risk, founding partner Daniel J. Bergeson uses his substantial litigation and trial experience to advocate for their rights and reputations in lawsuits involving securities, intellectual property, employment, private equity and venture capital, and commercial law. He focuses on the essential facts to persuade juries, judges, and triers of cases in state and federal courts and arbitration forums in Silicon Valley, Delaware, New York, and other dispute resol...