Atty. John Alexander Denniston

Atty. John Alexander Denniston

John Alexander Denniston is a lawyer practicing business law. John received a B.A. degree from University of Michigan in 1980, and has been licensed for 43 years.

San Mateo San Mateo 43 yrs experience 43 year
Call (650) 431-0602 Book Appointment

Profile Summary

About John Alexander Denniston at a glance

John Alexander Denniston is a business attorney based in San Mateo, California. They have 43+ years of legal experience, licensed to practice since 1983. Admitted to practice in California (1983). Educated at University of Michigan (J.D., 1983) and University of Michigan (B.A., 1980). Recognitions include AV Preeminent. Serands clients in San Mateo, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Alexander Denniston is a lawyer practicing business law
  • John received a B.A. degree from University of Michigan in 1980, and has been licensed for 43 years
  • John practices in San Mateo, CA

Practice Areas Explained

John Alexander Denniston's Areas of Practice

Each practice area below reflects the types of cases John Alexander Denniston handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John Alexander Denniston is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in San Mateo 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 substantive 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 San Mateo or all attorneys in California.

Frequently Asked

Common questions about John Alexander Denniston

Where is John Alexander Denniston's law office located?
John Alexander Denniston's law practice is located in San Mateo, California. You can contact the office directly through this profile page.
What practice areas does John Alexander Denniston handle?
John Alexander Denniston focuses on business. Each practice area listed reflects experience handling cases of that type in California.
How long has John Alexander Denniston practiced law?
John Alexander Denniston has 43+ years of legal experience and has been licensed since 1983.
Where did John Alexander Denniston go to law school?
John Alexander Denniston earned their education at (J.D., 1983); (B.A., 1980).
How can I contact John Alexander Denniston for a consultation?
You can contact John Alexander Denniston 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.
What awards or recognition has John Alexander Denniston received?
John Alexander Denniston's notable recognition includes: AV Preeminent.

Practice Areas

Education

J.D.
University of Michigan
- 1983
B.A.
University of Michigan
- 1980

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1983

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