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About This Office
Harrison TSI, a Professional Corporation is a law firm in Walnut Creek, California. Public California State Bar records list John Carter Harrison at this office address. State Bar records list an active license and admission in 1981. The profile identifies UC Hastings COL in San Francisco, California as the law school. The attorney’s profile identifies Business Law, Real Estate, and Wills & Probate as practice areas self-reported to the State Bar.
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These areas come from individual attorney profiles and may not describe every service offered by the firm.
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Record matched to the official California attorney registry
Bar #96818 · Admitted 1981
Last verified November 3, 2026.
Source: California public attorney records. No affiliation or endorsement.
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