Yardena Zwang-Weissman advocates for clients facing complex and high-stakes issues in environmental, mass tort, and product liability litigation across a variety of industries such as manufacturing and supply, energy, technology, life sciences, consumer products, and pharmaceutical and medical device, among others. She partners with clients from the infancy of matters through trial to navigate the nuances of individual, mass, serial, and class action cases in complex courts, coordinated proceedings, and in multidistrict litigation (MDL), often involving many parties, brought by numerous private and government plaintiffs, and involving regulatory and other multifaceted considerations.
As the deputy leader of the global litigation practice, Yardena helps to set the strategy and supports the operational goals of the practice.
A leader of Morgan Lewis’s crisis management team and thought leader on the strategy and practice of legal crisis management, Yardena draws upon her own experience and the resources of the firm to guide clients through high-profile disputes, where strategic coordination, development and implementation of overarching strategy across teams, and management of the multiple components of crisis-driven litigation is essential to the defense. Yardena represents clients in emergent incident cases and in matters involving the highest degree of sensitivity for the client’s reputational interests. Whether representing clients in individual matters or mass proceedings, she collaborates to develop litigation-wide strategy to address matters involving novel and fast developing issues related to science, medicine, technology, and the environment.
Among her key representations, Yardena has been responsible for national case coordination, strategy, and litigation leadership defending many large, complex matters often involving various products, services, as well as alleged air, soil, water, and groundwater contamination across jurisdictions, including those in which she served in critical roles on trial teams. She represents clients in cases involving various substances such as volatile organic compounds (VOCs), perchlorate, polychlorinated biphenyl (PCB), dioxin, furan, per- and polyfluoroalkyl substances (PFAS), lead, asbestos, benzene, talc, and silica.
While in law school, Yardena served as an extern for Justice Carlos Moreno of the Supreme Court of California and Judge S. James Otero of the Central District of California. She also served as the notes editor for the Hastings Law Journal.
Recognized, Leaders in Environmental Law, Environmental Litigation, Lawdragon Green 500 (2023–2025)
Listed, The Best Lawyers in America, Litigation - Environmental, Los Angeles (2022–2025)
Leaders of Influence, Litigators & Trial Attorneys, Los Angeles Business Journal (2024)
Rising Star, Environmental, Law360 (2018)
Next Generation Partner, Dispute resolution: Product liability, mass tort and class action: toxic tort - defense, The Legal 500 US (2021–2024)
Recommended, Dispute resolution: Product liability, mass tort and class action: pharmaceuticals and medical devices - defense, The Legal 500 US (2018–2020, 2023, 2024)
Recommended, Dispute resolution: Product liability, mass tort and class action: toxic tort - defense, The Legal 500 US (2018–2022)
They’ve Got Next, Environmental Law, Bloomberg Law (2021)
Recommended, Industry focus: Insurance: advice to policyholders, The Legal 500 US (2018)
Rising Star, Southern California Super Lawyers (2013–2017)
Recommended, The Legal 500 US (2016, 2017)
Member, Executive Committee, Environmental Section of the Los Angeles County Bar Association (2011–present)
Member, American Bar Association