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About This Office
John P. Antonakos is a law firm in San Mateo, California. Public California State Bar records list John Peter Antonakos at this office address. State Bar records list an active license and admission in 1987. The profile identifies University of San Diego School of Law in San Diego, California as the law school. The attorney’s profile identifies Taxation and Trusts & Estates as practice areas self-reported to the State Bar. The profile reports California Lawyers Association membership in the Trusts & Estates section.
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California attorney registration
Record matched to the official California attorney registry
Bar #131051 · Admitted 1987
Last verified September 6, 2026.
Source: California public attorney records. No affiliation or endorsement.
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