Atty. John Mark Potter

Atty. John Mark Potter

Mr. John Mark Potter is a lawyer practicing securities & investment fraud, health care, antitrust and trade regulation and 4 other areas of law.

San Francisco San Francisco 40 yrs experience 40 year
Call (659) 204-2682 Book Appointment

Profile Summary

About John Mark Potter at a glance

John Mark Potter is a Partner based in San Francisco, California, practicing at Quinn Emanuel Urquhart & Sullivan, LLP. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on business, white collar, securities, litigation, and consumer. Admitted to practice in Pennsylvania (1986), District of Columbia (1988), and California (1993). Educated at Georgetown University Law Center (J.D., 1986) and Georgetown University (B.A., 1983). Recognitions include AV Preeminent. Serands clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John Mark Potter is a lawyer practicing securities & investment fraud, health care, antitrust and trade regulation and 4 other areas of law
  • John received a B.A. degree from Georgetown University in 1983, and has been licensed for 40 years
  • John practices at Quinn Emanuel Urquhart & Sullivan, LLP in San Francisco, CA

Practice Areas Explained

John Mark Potter's Areas of Practice

Each practice area below reflects the types of cases John Mark Potter 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 Mark Potter is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

White Collar Crimes

John Mark Potter is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in California →

Securities Law

John Mark Potter is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John Mark Potter is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

John Mark Potter is one of 50,607 consumer attorneys indexed nationally. Browse consumer 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 Francisco 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 Francisco or all attorneys in California.

Frequently Asked

Common questions about John Mark Potter

Where is John Mark Potter's law office located?
John Mark Potter's law practice is located in San Francisco, California. The firm is Quinn Emanuel Urquhart & Sullivan, LLP. You can contact the office directly through this profile page.
What practice areas does John Mark Potter handle?
John Mark Potter focuses on business, white collar, securities, litigation, consumer. Each practice area listed reflects experience handling cases of that type in California.
How long has John Mark Potter practiced law?
John Mark Potter has 40+ years of legal experience and has been licensed since 1986.
Where did John Mark Potter go to law school?
John Mark Potter earned their education at (J.D., 1986); (B.A., 1983).
How can I contact John Mark Potter for a consultation?
You can contact John Mark Potter 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 Mark Potter received?
John Mark Potter's notable recognition includes: AV Preeminent.

Education

J.D.
Georgetown University Law Center
- 1986
B.A.
Georgetown University
- 1983

Awards

AV Preeminent

Bar Admissions

Pennsylvania
Admitted: 1986
District of Columbia
Admitted: 1988
California
Admitted: 1993

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