Sweeney & Sheehan

Sweeney & Sheehan

SWEENEY & SHEEHAN is an AV Preeminent-rated regional defense litigation firm representing clients across Pennsylvania and New Jersey.

Firm Overview

We are experienced litigators who practice at all levels of the State and Federal Court systems, enjoying a reputation for high quality legal representation which is tough, smart and practical. Since our inception in 1971, the Firm has been driven by our commitment to excellence in the work that we do and in the services we provide to our clients. Indeed, we will do whatever is necessary to better serve our clients. We are proud that our commitment has resulted in our being listed in the Martindale Hubbell Bar Register of Preeminent Attorneys.

With a professional staff of diverse experience, we are able to provide knowledgeable service to a wide range of clients in both the business and insurance communities. Although we are, first and foremost, a litigation Firm, we provide a wide variety of litigation-related counseling services, from acting as national counsel for product manufacturers in overseeing and coordinating litigation to conducting seminars on substantive legal issues and providing risk management services. We view it as part of our job to make sure clients are made aware of developments in the law that may affect their business. We frequently publish newsletters and conduct seminars both to educate our clients and to strengthen our working relationship with them. We pride ourselves on the fact that our clients turn to us not just for representation in ongoing litigation, but for counseling in loss prevention and litigation management issues as well.

We have organized the Firm to provide our clients with efficient and timely response to every level of inquiry or issue. Clients have direct access to the lawyers they have selected to work on their litigation matters, as well as to the paraprofessionals and support staff who work with that attorney. We find that this allows clients to obtain information regarding their cases from the person on our team most suited to respond to the inquiry without the need for more than one inquiry. This team approach fosters open lines of communication and allows us to provide frequent updates on the progress of each case. We understand the high premium placed by our clients on prompt response and immediate action and make certain that this value is shared by everyone from partner to support staff. Whether a client presents us with an urgent situation that requires immediate attention or a long-range problem that demands more deliberate counsel, we are prepared to respond as necessary to get the job done.

Main Office

Main Office
19th Floor, 1515 Market Street
Philadelphia PA 19102




Sweeney & Sheehan is a litigation Firm and has been from its inception. We have remained true to our heritage while consistently enhancing our expertise to keep pace with the changing and increasingly sophisticated legal needs of our clients.

Our attorneys represent insurers, corporations, municipalities and individuals in a broad variety of legal matters in all forums throughout Pennsylvania and New Jersey, including State and Federal Courts, Arbitrations, mediations and other forms of alternative dispute resolution. Our client base is extensive and diverse, including domestic, foreign, primary and excess carriers as well as Fortune 500 companies and individual entrepreneurs. Whether clients seek trial counsel for a catastrophic loss, creative solutions to a commercial dispute or legal guidance on an employment matter, we are able to meet their highest expectations. SWEENEY & SHEEHAN is a recognized leader in providing legal counsel and trial representation in a broad range of specialties.

Barbara O'Connell

Sweeney & Sheehan

Barbara A. O'Connell is a partner in the Philadelphia and New Jersey offices where she heads the Employment Practice & Professional Liability Group. Her practice focuses on advising employers in all aspects of employee management and litigation. This includes negligent hiring, wrongful discharge, civil rights, ERISA and employment discrimination cases. In her 20 years of trial practice she has defended hundreds of cases in state and federal courts including a widely-publicized jury trial involving a law firm accused of discriminating against a lawyer who had AIDS (similar to the claim depicted in the movie, Philadelphia). Ms. O'Connell also represents lawyers, medical professionals, brokers, and employee benefits providers, among others, in professional liability cases.

Ms. O'Connell is a past Chair of the DRI Employment Law Committee. As Chair, she directed the course of the organization and facilitated outstanding educational and professional development opportunities. She has published and lectured on Employment Law topics for DRI and other professional organizations and clients throughout the country. She is also an active member of the DRI Professional Liability Committee and Co-Chair of the USLAW Professional Liability Seminar.

Ms. O'Connell has been named a Pennsylvania Super Lawyer four times and was honored as a Top Woman Lawyer in the Northeast by Arrive Magazine.

Ms. O'Connell graduated Summa Cum Laude from the University of Bridgeport, Connecticut and received her J.D. from Villanova University where she won the Theodore Reimel Moot Court Competition.

University of Bridgeport - B.S., Education, summa cum laude, 1978
Villanova University School of Law - J.D., 1986

Bar Admission
Pennsylvania - 1986
New Jersey - 1987
U.S. Court of Appeals for the Third Circuit - 1991
U.S. District Court for the Eastern District of Pennsylvania - 1987
U.S. District Court for the District of New Jersey - 1987
U.S. District Court for the Middle District of Pennsylvania - 2003
United States Supreme Court - 1993


Villanova University School of Law
Juris Doctorate,