Atty. Joan P. Depfer

Atty. Joan P. Depfer

With more than 25 years of litigation and trial experience, Joan concentrates her practice in asbestos litigation, representing equipment and product manufacturers in the defense of asbestos claims and suits brought against them. Prior to joining Marshall Dennehey in 2004, Joan maintained an active casualty practice with a strong focus on personal injury litigation.

Philadelphia Philadelphia 35 yrs experience 35 year
Call (215) 575-4559 Book Appointment

Profile Summary

About Joan P. Depfer at a glance

Joan P. Depfer is a Shareholder based in Philadelphia, Pennsylvania, practicing at Marshall Dennehey. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on personal injury, business, litigation, and consumer. Admitted to practice in Pennsylvania (1991), New Jersey (1991), U.S. District Court District of New Jersey (1991), and U.S. District Court Eastern District of Pennsylvania (1992). Educated at Widener University School of Law, Wilmington, Delaware (J.D., 1991) and Millersville University of Pennsylvania (B.A. Social, 1982). Recognitions include AV Preeminent. Active member of Associations & Memberships American Bar Association •Philadelphia Bar Association. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • With more than 25 years of litigation and trial experience, Joan concentrates her practice in asbestos litigation, representing equipment and product manufacturers in the defense of asbestos claims and suits brought against them
  • Prior to joining Marshall Dennehey in 2004, Joan maintained an active casualty practice with a strong focus on personal injury litigation
  • Over the course of her career, she has tried dozens of personal injury and consumer credit cases to verdict, and she has additionally represented numerous clients in arbitrations and mediations in both Pennsylvania and New Jersey
  • Joan works with each client to identify and implement a litigation strategy that best suits the specifics of their case
  • Her vast experience allows her to counsel clients on the most cost effective course of action with evaluation of early resolution
  • Joan graduated cum laude from Widener University School of Law, where she was research editor for the Delaware Journal of Corporate Law
  • During law school, Joan worked as a real estate and corporate paralegal at a law firm in Media, Pennsylvania
  • Joan's legal experience actually began when she served as a frequent court witness during her years as a caseworker with Chester County Children, Youth & Family Services
  • As an attorney, she has drawn on her caseworker experience in handling pro bono matters
  • Honors & Awards •AV Preeminent by Martindale-Hubbell Published Works •“Limited Tort Litigation - Using the Plaintiff’s Perspective to Shape the Pleadings and Discovery,” Defense Digest, Vol. 25, No. 1, March 2019

Practice Areas Explained

Joan P. Depfer's Areas of Practice

Each practice area below reflects the types of cases Joan P. Depfer 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.

Joan P. Depfer is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Pennsylvania →

Business & Corporate Law

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

Joan P. Depfer is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Pennsylvania →

Civil Litigation

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

Joan P. Depfer is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Consumer Protection

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

Joan P. Depfer 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 Joan P. Depfer

Where is Joan P. Depfer's law office located?
Joan P. Depfer's law practice is located in Philadelphia, Pennsylvania. The firm is Marshall Dennehey. You can contact the office directly through this profile page.
What practice areas does Joan P. Depfer handle?
Joan P. Depfer focuses on personal injury, business, litigation, consumer. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Joan P. Depfer practiced law?
Joan P. Depfer has 35+ years of legal experience and has been licensed since 1991.
Where did Joan P. Depfer go to law school?
Joan P. Depfer earned their education at (J.D., 1991); (B.A. Social, 1982).
How can I contact Joan P. Depfer for a consultation?
You can contact Joan P. Depfer 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 Joan P. Depfer received?
Joan P. Depfer's notable recognition includes: AV Preeminent.

Education

J.D.
Widener University School of Law, Wilmington, Delaware
- 1991
B.A. Social
Millersville University of Pennsylvania
- 1982

Awards

AV Preeminent

Bar Admissions

Pennsylvania
Admitted: 1991
New Jersey
Admitted: 1991
U.S. District Court District of New Jersey
Admitted: 1991
U.S. District Court Eastern District of Pennsylvania
Admitted: 1992
U.S. District Court Middle District of Pennsylvania
Admitted: 1996
U.S. District Court Western District of Pennsylvania
Admitted: 2008

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