Diane B. Sher

Diane Bernoff Sher has more than 35 years of experience defending commercial, governmental and individual clients in complex civil litigation. Her areas of focus include insurance defense, trucking litigation, dram shop cases, and insurance coverage disputes. Diane also has broad experience in municipal liability law including the defense of civil rights claims, and has represented private and governmental clients in connection with employment and wrongful discharge litigation.

Diane practiced with our firm for 24 years and returns after serving as Assistant General Counsel for the School District of Philadelphia. As head of the Tort and Civil Rights Unit in the Office of General Counsel for the eighth largest school district in the United States, Diane defended the School District in hundreds of matters with an emphasis on civil rights claims brought under 42 U.S.C. Section 1983, premises liability and vehicular liability. She was lead counsel in major jury trials, arbitrations and mediations.

Diane was a member of the team representing the School District in a high-profile investigation by the Civil Rights Division of the United States Department of Justice into allegations of racial harassment of students.  Following resolution of the investigation, she ensured that the School District was in compliance with a court-approved settlement agreement.

Diane argued the pivotal civil rights case of Morse v Lower Merion School District, 132 F.3d 902, 3rd Cir. (1997) in the Third Circuit Court of Appeals. She was awarded a Certificate by the National Institute of Trial Advocacy. Diane serves as Judge Pro Tem in the Philadelphia Court of Common Pleas, where the court also appointed her guardian-ad-litem in a catastrophic motor vehicle accident case. She authored course materials and served on the faculty of continuing legal education (CLE) programs, including seminars on Municipal Law and Liability and the defense of trucking accidents offered by the Pennsylvania Bar Institute.


  • J.D., Temple University, 1978
  • B.S, Temple University, 1975

Bar and Court Admissions

  • Supreme Court of Pennsylvania
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. Court of Appeals for the Third Circuit

Community/Civic Involvement

  • Member of the Temple American Inn of Court, 2009 to 2015
  • Consultant and instructor, Wharton Communication Program, 2005
  • Member, Board of Directors, United Cerebral Palsy For Philadelphia and Vicinity, 1997 – 2002
  • President, Bala Cynwyd Library Board of Trustees, 1990 – 1992