Atty. Thomas Christopher Sullivan

Atty. Thomas Christopher Sullivan

Thomas Christopher Sullivan is a lawyer practicing general practice, litigation, arbitration and 1 other area of law. Thomas received a B.S. degree from Ohio State University in 1986, and has been licensed for 35 years.

Philadelphia Philadelphia 35 yrs experience 35 year
Call (267) 817-1602 Book Appointment

Profile Summary

About Thomas Christopher Sullivan at a glance

Thomas Christopher Sullivan is an Attorney based in Philadelphia, Pennsylvania, practicing at Marks & Sokolov, LLC. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on litigation, adr, and maritime. Admitted to practice in Pennsylvania (1991), U.S. District Court, Eastern District of Pennsylvania and U.S. District Court, District of New Jerse (1991), New Jersey (1992), and U.S. Supreme Court (1995). Educated at Widener University School of Law (J.D., 1991) and Ohio State University (B.S. Business, 1986). Recognitions include BV Distinguished. Active member of Philadelphia Bar Association. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas Christopher Sullivan is a lawyer practicing general practice, litigation, arbitration and 1 other area of law
  • Thomas received a B.S. degree from Ohio State University in 1986, and has been licensed for 35 years
  • Thomas practices at Marks & Sokolov, LLC in Philadelphia, PA

Practice Areas Explained

Thomas Christopher Sullivan's Areas of Practice

Each practice area below reflects the types of cases Thomas Christopher Sullivan handles, with a brief overview of what that area of law covers.

Civil Litigation

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

Thomas Christopher Sullivan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

Thomas Christopher Sullivan is one of 73,906 adr attorneys indexed nationally. Browse adr attorneys in Pennsylvania →

Maritime & Admiralty Law

Maritime attorneys for Jones Act claims, longshore injury, cruise ship cases, and offshore matters.

Thomas Christopher Sullivan is one of 11,568 maritime attorneys indexed nationally. Browse maritime 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 Thomas Christopher Sullivan

Where is Thomas Christopher Sullivan's law office located?
Thomas Christopher Sullivan's law practice is located in Philadelphia, Pennsylvania. The firm is Marks & Sokolov, LLC. You can contact the office directly through this profile page.
What practice areas does Thomas Christopher Sullivan handle?
Thomas Christopher Sullivan focuses on litigation, adr, maritime. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Thomas Christopher Sullivan practiced law?
Thomas Christopher Sullivan has 35+ years of legal experience and has been licensed since 1991.
Where did Thomas Christopher Sullivan go to law school?
Thomas Christopher Sullivan earned their education at (J.D., 1991); (B.S. Business, 1986).
How can I contact Thomas Christopher Sullivan for a consultation?
You can contact Thomas Christopher Sullivan 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 Thomas Christopher Sullivan received?
Thomas Christopher Sullivan's notable recognition includes: BV Distinguished.

Education

J.D.
Widener University School of Law
- 1991
B.S. Business
Ohio State University
- 1986

Awards

BV Distinguished

Bar Admissions

Pennsylvania
Admitted: 1991
U.S. District Court, Eastern District of Pennsylvania and U.S. District Court, District of New Jerse
Admitted: 1991
New Jersey
Admitted: 1992
U.S. Supreme Court
Admitted: 1995
U.S. Court of Appeals, Third Circuit
Admitted: 1997
U.S. District Court, District of Colorado
Admitted: 2009
New York
Admitted: 2025

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