Gary Siniscalco

Steven A. Hirsch is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Commercial Litigation. Steven A., who practices law in San Francisco, California, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Steven A. is held by other top lawyers in the same geographic and legal practice area.

David J. Tsai is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. David J., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David J. is held by other top lawyers in the same geographic and legal practice area.

Jay Weill is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Jay, who practices law in San Francisco, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jay is held by other top lawyers in the same geographic and legal practice area.

Julie focuses on environmental and land use counseling and litigation for complex development projects. She resolves issues that arise under the California Environmental Quality Act, the National Environmental Policy Act, the Clean Water Act, federal and state species protection statutes, and a range of other local, state and federal statutes and common law doctrines that affect land use. An experienced litigator in California and federal courts, Julie defends projects and uses this experienc...

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...

The Daily Journal describes Anna-Rose Mathieson as “one of the West Coast’s leading appellate litigators.” She’s been named one of the Top Women Attorneys in California three times, is certified as an appellate specialist by the Board of Legal Specialization of the State Bar of California, and taught appellate writing at Stanford Law School. She served as a law clerk to Justice Ruth Bader Ginsburg on the U.S. Supreme Court. Anna-Rose draws from her broad experience to ...

Karen A. Spindler is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice. Karen A., who practices law in San Francisco, California, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen A. is held by other top lawyers in the same geographic and legal practice area.

Monica Mazzei is a Shareholder in Buchalter’s San Francisco office and the chair of the Firm’s Family Law group. Monica is a Certified Family Law Specialist representing high net worth clients. She represents clients throughout California, with a concentration in San Francisco and Silicon Valley, as well as Los Angeles.

Charles O. Thompson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Charles O., who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Charles O. is held by other top lawyers in the same geographic and legal practice area.

Michael Von Loewenfeldt is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Michael, who practices law in San Francisco, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.