Jacqueline Promislo



(215) 665-2108

(215) 665-2013

Jacqueline focuses her practice on high profile and high exposure catastrophic casualty litigation, complex tort litigation, involving product liability, defamation, negligence and premises liability, as well as commercial litigation and breach of contract actions. She is experienced in all phases of litigation, including extensive deposition experience, court appearances, bench and jury trials, arbitrations, mediations, witness preparation, and jury analysis.  She immerses herself in matters, strategizing from the initial stages, beginning with thorough investigations and cause analysis through trial, to fully assess matters at every stage and thoughtfully advise clients.

Jacqueline practiced at Cozen O'Connor from 1994 until 2007, and returned in 2017 after owning and operating her own independent business for ten years.  As a business owner, she continued to use her legal background to represent her company in all aspects of the business, from contracts and negotiations to employment-related court hearings.

Jacqueline double majored at McGill University where she received her bachelor's in art history and political science. While attending McGill, she counseled students on the school's crisis hotline and was a member of Amnesty International, as well as the McGill Film Society. Jacqueline earned her law degree, cum laude, from Tulane University Law School where she represented both juveniles and adults in criminal matters, as well as neglect and abuse cases.


Cozen O'Connor Promotes 27 to Membership

May 01, 2019

Cozen O'Connor is pleased to recognize 27 attorneys with the promotion to member: Dylan Alper, Philip J. Berens, Alison Weintraub Berson, Evan Berquist, Alexandra Campau, Alissa K. Christopher, Matthew D. Clyde, Rachel Collins Clarke, Michael A. Corgan, Matthew L. Elkin, Nicole M. Ellis, Alex H. Hayden, David S. Huard, Haryle Kaldis, David Kirchblum, Matthew Evan Lewitz, Jesse Ryan Loffler, Samantha L. Mazo, Lindsey A. Miller, Jeffrey M. Monhait, Jonathan Nase, Jacqueline Promislo, Shelby K. Riney, Kelly Shinn, Terri A. Sutton, Daniel P. Thiel, and Laura Zulick.


  • Tulane University Law School, J.D., cum laude, 1994
  • McGill University, B.A., 1987
  • Pennsylvania