Atty. John James Grogan

Atty. John James Grogan

John James Grogan is a lawyer practicing commercial, complex litigation, antitrust and 3 other areas of law. John received a B.A. degree from Fordham University in 1988, and has been licensed for 32 years.

Philadelphia Philadelphia 32 yrs experience 32 year
Call (267) 876-4673 Book Appointment

Profile Summary

About John James Grogan at a glance

John James Grogan is a Member based in Philadelphia, Pennsylvania, practicing at Langer Grogan & Diver P.C.. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on business, class action, litigation, civil rights, and consumer. Admitted to practice in New Jersey (1994), Pennsylvania (1994), and U.S. District Court, District of New Jersey and U.S. District Court, Eastern District of Pennsylvani (1994). Educated at University of Pennsylvania (J.D., 1993) and Fordham University (B.A., 1988). Recognitions include AV Preeminent. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John James Grogan is a lawyer practicing commercial, complex litigation, antitrust and 3 other areas of law
  • John received a B.A. degree from Fordham University in 1988, and has been licensed for 32 years
  • John practices at Langer Grogan & Diver P.C. in Philadelphia, PA

Practice Areas Explained

John James Grogan's Areas of Practice

Each practice area below reflects the types of cases John James Grogan 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 James Grogan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Pennsylvania →

Class Action

John James Grogan is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Pennsylvania →

Civil Litigation

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

John James Grogan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

John James Grogan is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights attorneys in Pennsylvania →

Consumer Protection

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

John James Grogan is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

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

Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common questions about John James Grogan

Where is John James Grogan's law office located?
John James Grogan's law practice is located in Philadelphia, Pennsylvania. The firm is Langer Grogan & Diver P.C.. You can contact the office directly through this profile page.
What practice areas does John James Grogan handle?
John James Grogan focuses on business, class action, litigation, civil rights, consumer. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has John James Grogan practiced law?
John James Grogan has 32+ years of legal experience and has been licensed since 1994.
Where did John James Grogan go to law school?
John James Grogan earned their education at (J.D., 1993); (B.A., 1988).
How can I contact John James Grogan for a consultation?
You can contact John James Grogan 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 James Grogan received?
John James Grogan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Pennsylvania
- 1993
B.A.
Fordham University
- 1988

Awards

AV Preeminent

Bar Admissions

New Jersey
Admitted: 1994
Pennsylvania
Admitted: 1994
U.S. District Court, District of New Jersey and U.S. District Court, Eastern District of Pennsylvani
Admitted: 1994

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