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.
Arbitration & More Attorney · Serving Philadelphia, PA · 35+ Years Experience
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. Serves clients in Philadelphia, PA and the surrounding metropolitan area.
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About 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
- Thomas practices at Marks & Sokolov, LLC in Philadelphia, PA
Practice Areas Explained
Thomas Christopher Sullivan's Areas of Legal Practice
Each practice area below reflects the types of cases Thomas Christopher Sullivan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Philadelphia.
Civil Litigation in Philadelphia
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Thomas Christopher Sullivan is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →
Mediation & Arbitration in Philadelphia
Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.
Thomas Christopher Sullivan is one of 73,315 adr attorneys indexed nationally. Browse adr attorneys in Pennsylvania →
Maritime & Admiralty Law in Philadelphia
Maritime attorneys for Jones Act claims, longshore injury, cruise ship cases, and offshore matters.
Thomas Christopher Sullivan is one of 11,459 maritime attorneys indexed nationally. Browse maritime attorneys in Pennsylvania →
Jurisdictional Context
Why Local Counsel Matters in Philadelphia
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 venue, 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.
Philadelphia Courts and Legal Process
Choosing a Philadelphia-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.
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Professional Profile
Why Clients in Philadelphia Choose Thomas Christopher Sullivan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Thomas Christopher Sullivan's practice in the field of litigation, adr, and maritime.
Decade-Tested Legal Experience
Thomas Christopher Sullivan brings 35+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Pennsylvania, U.S. District Court, Eastern District of Pennsylvania and U.S. District Court, District of New Jerse, and New Jersey, Thomas Christopher Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering litigation, adr, and maritime, Thomas Christopher Sullivan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Philadelphia
A Philadelphia-based practice means Thomas Christopher Sullivan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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How People Find Thomas Christopher Sullivan Online
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Thomas Christopher Sullivan's Practice Areas & Specializations
Education & Law School Background
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Bar Admissions & Licensed Jurisdictions
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