Liz Weissert practices complex commercial litigation with a focus on federal antitrust litigation and is a member of Ballard Spahr’s Antitrust and Competition Group. Liz is also a member of Ballard Spahr's Life Sciences Industry Group and has experience representing multiple global pharmaceutical companies in all manner of disputes. In her antitrust practice, Liz has defended clients in matters involving claims of conspiracies to restrain trade, including price-fixing, wage-fixing, no-poach agreements, information sharing, and group boycotts as well as other types of antitrust claims such as tying and monopolization. Liz also has experience in matters involving federal RICO and fraud claims, as well as consumer class action litigation.
Liz has extensive experience providing a full range of antitrust services to clients, including advice related to transactions, counseling on antitrust compliance and risk, representing clients in civil and criminal litigation, and government investigations. In her antitrust and competition practice, Liz has represented some of the largest companies in the country, including life science companies, institutions of higher education, agriculture companies, professional associations, and real estate companies. Liz has also advised trade associations, including drafting antitrust policies.
Representative Experience
Representative Matters
- Represents the largest medical certifying board in federal antitrust litigation alleging monopolization, as well as First Amendment claims, in relation to its standards for physician certification. Obtained dismissal of all state and federal claims in Texas federal court.
- Defends a large agriculture company against antitrust claims alleging unlawful bundling in litigation in North Carolina federal court.
- Defends a not-for-profit news agency against antitrust claims alleging defendant media companies conspired with online platforms to boycott certain online journalists in the District of Columbia federal court.
Professional Highlights
Pro Bono Experience
Liz has an active pro bono practice, primarily representing clients who are transgender in name change matters. Liz represented a client who is transgender in appealing the denial of petition to change her name. Liz argued this matter before the Superior Court of Pennsylvania to achieve a successful result for her client. Liz's pro bono practice includes representation of clients in civil forfeiture proceedings as well as representing individuals who were sentenced to life without parole as juveniles in re-sentencing and appellate matters. Along with the Rapid Defense Network and the Transgender Law Center, Liz represented a group of transgender individuals who were held in ICE detention during the COVID-19 pandemic seeking release.
Professional Activities
Ballard Spahr Philadelphia Hiring Committee
Recognition & Accomplishments
Chambers USA, "Associate to Watch," Antitrust (Pennsylvania), 2024, 2025
The Best Lawyers in America, "Ones to Watch," Commercial Litigation (Philadelphia), 2026
Legal 500, Antitrust - Civil litigation/class action - defense, 2023
Speaking Engagements
“Gender Inclusive Language and Policies in the Workplace,” Pennsylvania Diversity Council LGBTQ+ Unity Summit, June 13, 2023
“Antitrust Regulation and Enforcement under the Biden Administration,” Pennsylvania Bar Institute, November 16, 2022
Board Memberships & Community Service
Equality Forum, Board of Directors (Treasurer)
Philadelphia LGBTQ Bar Association, Board of Directors (President)
Publications
"Get Out of Jail Free? Preventing Employment Discrimination Against People with Criminal Records with 'Ban the Box' Laws," University of Pennsylvania Law Review, 2016
Related Insights
Credentials
Education
University of Pennsylvania Law School (J.D., cum laude, 2016)
Senior Editor, University of Pennsylvania Law Review
President, Lambda Law 2014-2015
Smith College (B.A., magna cum laude, 2013)
Phi Beta Kappa
Admissions
Pennsylvania
U.S. District Court for the Eastern District of Pennsylvania
U.S. District Court for the District of Colorado
U.S. Court of Appeals for the Third Circuit
U.S. Court of Appeals for the Fifth Circuit