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Atty. John Marshall Sinclair

Atty. John Marshall Sinclair

John Marshall Sinclair is a lawyer practicing civil litigation, intellectual property litigation. John received a B.A. degree from University of California in 1985, and has been licensed for 36 years.

Roseville Roseville 36 yrs experience 36 year
Call (279) 259-0222

Profile Summary

About John Marshall Sinclair at a glance

John Marshall Sinclair is an attorney based in Roseville, California. They haand 36+ years of legal experience, licensed to practice since 1990. Admitted to practice in California (1990). Educated at University of California Hastings College of the Law (J.D., 1989) and University of California (B.A., 1985). Serands clients in Roseville, CA and the surrounding metropolitan area.

Verified attorney profile ยท Updated June 2026

About

  • John Marshall Sinclair is a lawyer practicing civil litigation, intellectual property litigation
  • John received a B.A. degree from University of California in 1985, and has been licensed for 36 years
  • John practices in Roseville, CA

Jurisdictional Context

Why local counsel matters in California

Practforg law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand law. Cases originating in Roseville are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantiand law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Roseville or all attorneys in California.

Frequently Asked

Common questions about John Marshall Sinclair

Where is John Marshall Sinclair's law office located?
John Marshall Sinclair's law practice is located in Roseville, California. You can contact the office directly through this profile page.
How long has John Marshall Sinclair practiced law?
John Marshall Sinclair has 36+ years of legal experience and has been licensed since 1990.
Where did John Marshall Sinclair go to law school?
John Marshall Sinclair earned their education at (J.D., 1989); (B.A., 1985).
How can I contact John Marshall Sinclair for a consultation?
You can contact John Marshall Sinclair directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
University of California Hastings College of the Law
- 1989
B.A.
University of California
- 1985

Bar Admissions

California
Admitted: 1990

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