Atty. John P. McMahon

Atty. John P. McMahon

Mr. John P.

Rock Hill Rock Hill 59 yrs experience 59 year
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Profile Summary

About John P. McMahon at a glance

John P. McMahon is a Member based in Rock Hill, South Carolina, practicing at Law Office of John P. McMahon. They have 59+ years of legal experience, licensed to practice since 1967. Their practice focuses on patent, trademark, copyright, business, and litigation. Admitted to practice in New York (1967), Massachusetts (1975), Pennsylvania registered to practice before the U.S. Patent and Trademark Office (1990), and North Carolina (1995). Educated at Georgetown University (LL.M. New, 1972) and New York University (Rochester Institute, 1967). Recognitions include AV Preeminent. Active member of New York State. Serands clients in Rock Hill, SC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John P. McMahon is a lawyer practicing international law, commercial law, shipping law and 9 other areas of law
  • John P. received a degree from New York University in 1967, and has been licensed for 59 years
  • John P. practices at Law Office of John P. McMahon in Rock Hill, SC

Practice Areas Explained

John P. McMahon's Areas of Practice

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

Patent Law

John P. McMahon is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in South Carolina →

Trademark Law

John P. McMahon is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in South Carolina →

Copyright Law

John P. McMahon is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in South Carolina →

Business & Corporate Law

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

John P. McMahon is one of 501,317 business attorneys indexed nationally. Browse business attorneys in South Carolina →

Civil Litigation

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

John P. McMahon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in South Carolina →

Jurisdictional Context

Why local counsel matters in South Carolina

Practicing law in South Carolina. Legal matters in South Carolina are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Rock Hill are typically filed in the local municipal court or the appropriate South Carolina state district court, depending on subject matter and amount in controversy. An attorney licensed in South Carolina 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 South Carolina courts without local counsel or pro hac vice admission.

Looking for additional South Carolina attorneys? Browse all attorneys in Rock Hill or all attorneys in South Carolina.

Frequently Asked

Common questions about John P. McMahon

Where is John P. McMahon's law office located?
John P. McMahon's law practice is located in Rock Hill, South Carolina. The firm is Law Office of John P. McMahon. You can contact the office directly through this profile page.
What practice areas does John P. McMahon handle?
John P. McMahon focuses on patent, trademark, copyright, business, litigation. Each practice area listed reflects experience handling cases of that type in South Carolina.
How long has John P. McMahon practiced law?
John P. McMahon has 59+ years of legal experience and has been licensed since 1967.
Where did John P. McMahon go to law school?
John P. McMahon earned their education at (LL.M. New, 1972); (Rochester Institute, 1967).
How can I contact John P. McMahon for a consultation?
You can contact John P. McMahon 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 P. McMahon received?
John P. McMahon's notable recognition includes: AV Preeminent.

Education

LL.M. New
Georgetown University
- 1972
Rochester Institute
New York University
- 1967

Awards

AV Preeminent

Bar Admissions

New York
Admitted: 1967
Massachusetts
Admitted: 1975
Pennsylvania registered to practice before the U.S. Patent and Trademark Office
Admitted: 1990
North Carolina
Admitted: 1995
South Carolina
Admitted: 1998

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