Litigation - Antitrust Mass Tort Litigation / Class Actions - Plaintiffs
WC 
William Castillo Guardado
Recognized in Ones to Watch since 2026 Awarded Practice Areas
Biography
William Castillo Guardado is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Antitrust and Mass Tort Litigation / Class Actions - Plaintiffs.
William, 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 William is held by other top lawyers in the same geographic and legal practice area.
Overview
- University of California Hastings College of the Law, J.D., graduated 2013
- California, The State Bar of California, 2013
- California, The State Bar of California, 2013
- University of California Hastings College of the Law, J.D., graduated 2013
Client Testimonials
Awards & Focus
Recognized in Best Lawyers: Ones to Watch® in America 2026 for work in:
- Litigation - Antitrust
- Mass Tort Litigation / Class Actions - Plaintiffs
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