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Joan P. Depfer

2000 Market Street, Suite 2300
Philadelphia, PA 19103
(215) 575-4559
(215) 575-0856 - Fax

Joan concentrates her practice in asbestos litigation, representing equipment and product manufacturers in the defense of asbestos claims and suits brought against them. She additionally focuses in the area of consumer financial litigation, and represents financial institutions in consumer credit disputes.

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 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. 

Significant Representative Matters

  • Asbestos Case: McCloskey v. Allis-Chalmers Prods. Liab. Trust, 2011 U.S. Dist. LEXIS 25372 (W.D. Pa. Mar. 14, 2011)

  • Asbestos Case: Robinson v. Air & Liquid Sys. Corp., 2013 U.S. Dist. LEXIS 44982 (E.D. Pa. Feb. 7, 2013)

  • Consumer Credit Case: Eaton v. Citibank (S.D.), N.A., 2010 U.S. Dist. LEXIS 23617 (M.D. Pa. Mar. 15, 2010)

  • Consumer Credit Case: Handley v. Chase Bank USA, NA, 2011 U.S. Dist. LEXIS 102781 (D.N.J. Sept. 12, 2011), affirmed by Handley v. Chase Bank USA, NA, 2012 US. App. LEXIS 3708 (3d Cir. NJ, Feb. 24, 2012)

  • Consumer Credit Case: Sankowski v. Citibank (S.D.), N.A., 2006 U.S. Dist. LEXIS 48634 (E.D. Pa. July 14, 2006)

  • Consumer Credit Case: Tagayun v. Citibank, N.A., 2006 U.S. Dist. LEXIS 38085 (D.N.J. June 9, 2006)

  • Success in resolving 50-60 consumer credit disputes prior to trial via settlement or by way of dispositive motion. 

  • Second chair jury trial experience in catastrophic personal injury matters involving premises or product liability claims. These cases were ultimately resolved for significantly less than the original multi-million dollar demands. 

Published Works

  • “Limited Tort Litigation – Using the Plaintiff’s Perspective to Shape the Pleadings and Discovery,” Defense Digest, Vol. 25, No. 1, March 2019


  • Widener University School of Law, Wilmington, DE (J.D., 1991)

    Honors: cum laude
    Law Review: Delaware Journal of Corporate Law, Staff, 1989-1990; Research Editor 1990-1991

  • Widener University, Chester, PA, 1986

    Certificate with Honors, Paralegal Studies 

  • Millersville University of Pennsylvania, Millersville, PA (B.A., 1982)

    Major: Social Work

Defense Digest Article March 1, 2019
Defense Digest, Vol. 25, No. 1, March 2019 By Joan P. Depfer, Esq.* Key Points: Limited tort litigation is defensible, and there are strategies available for a successful defense at every step of the case. Shape a defense with creative..., Defense Digest, Vol. 25, No. 1, March 2019. Defense Digest is prepared by Marshall Dennehey Warner Coleman & Goggin to provide information on recent legal developments of interest to our readers. This publication is not intended to provide legal...


  • Widener University School of Law (J.D., cum laude, 1991)
  • Millersville University of Pennsylvania (B.A., 1982)

Bar Admissions

  • New Jersey, 1991
  • Pennsylvania, 1991
  • U.S. District Court District of New Jersey, 1991
  • U.S. District Court Eastern District of Pennsylvania, 1992
  • U.S. District Court Middle District of Pennsylvania, 1996
  • U.S. Court of Appeals 3rd Circuit, 1996
  • U.S. District Court Western District of Pennsylvania, 2008

Associations & Memberships

  • American Bar Association
  • Philadelphia Bar Association

Honors & Awards

Year Joined Organization: 2004


  • Phi Delta Phi

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