Atty. Thomas Jonathan Johanson

Atty. Thomas Jonathan Johanson

Thomas Jonathan Johanson is a lawyer practicing asbestos litigation, toxic tort litigation, products liability and 2 other areas of law. Thomas received a B.S. degree from St.

Philadelphia Philadelphia 47 yrs experience 47 year
Call (215) 995-1491 Book Appointment

Profile Summary

About Thomas Jonathan Johanson at a glance

Thomas Jonathan Johanson is an Of Counsel based in Philadelphia, Pennsylvania, practicing at Marks, O'Neill, O'Brien & Courtney, P.C.. They have 47+ years of legal experience, licensed to practice since 1979. Their practice focuses on personal injury, product liability, litigation, and appellate. Admitted to practice in Pennsylvania (1979), U.S. District Court, Eastern District of Pennsylvania and U.S Court of Appeals, Third Circuit (1979), New Jersey (1985), and U.S. District Court, District of New Jersey (1985). Educated at Widener University (J.D., 1978) and St. Joseph's University (B.S., 1974). Recognitions include AV Preeminent. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas Jonathan Johanson is a lawyer practicing asbestos litigation, toxic tort litigation, products liability and 2 other areas of law
  • Thomas received a B.S. degree from St. Joseph's University in 1974, and has been licensed for 47 years
  • Thomas practices at Marks, O'Neill, O'Brien & Courtney, P.C. in Philadelphia, PA

Practice Areas Explained

Thomas Jonathan Johanson's Areas of Practice

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

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Thomas Jonathan Johanson is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Pennsylvania →

Product Liability

Thomas Jonathan Johanson is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Pennsylvania →

Civil Litigation

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

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

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Thomas Jonathan Johanson is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 Jonathan Johanson

Where is Thomas Jonathan Johanson's law office located?
Thomas Jonathan Johanson's law practice is located in Philadelphia, Pennsylvania. The firm is Marks, O'Neill, O'Brien & Courtney, P.C.. You can contact the office directly through this profile page.
What practice areas does Thomas Jonathan Johanson handle?
Thomas Jonathan Johanson focuses on personal injury, product liability, litigation, appellate. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Thomas Jonathan Johanson practiced law?
Thomas Jonathan Johanson has 47+ years of legal experience and has been licensed since 1979.
Where did Thomas Jonathan Johanson go to law school?
Thomas Jonathan Johanson earned their education at (J.D., 1978); (B.S., 1974).
How can I contact Thomas Jonathan Johanson for a consultation?
You can contact Thomas Jonathan Johanson 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 Jonathan Johanson received?
Thomas Jonathan Johanson's notable recognition includes: AV Preeminent.

Education

J.D.
Widener University
- 1978
B.S.
St. Joseph's University
- 1974

Awards

AV Preeminent

Bar Admissions

Pennsylvania
Admitted: 1979
U.S. District Court, Eastern District of Pennsylvania and U.S Court of Appeals, Third Circuit
Admitted: 1979
New Jersey
Admitted: 1985
U.S. District Court, District of New Jersey
Admitted: 1985

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