Overview
Clients rely on Mariah Heinzerling for careful, fact-driven research and analysis that strengthens complex class action cases. She contributes to the Plaintiffs’ Rights Practice Group with thorough investigations and creative approaches to legal strategy.
Mariah Heinzerling is an associate in Dilworth’s Plaintiffs’ Rights Practice Group, where she focuses on securities fraud, consumer protection, shareholder derivative suits, and environmental law. She works closely with senior attorneys to investigate claims, review evidence, conduct legal research, and draft filings for complex class actions in federal and state courts.
Mariah’s work includes analyzing public records, case law and client-provided materials to help build strong complaints and respond to defense motions. She is skilled at identifying potential claims, assessing their viability and framing them effectively. Her casework has involved consumer claims, data breaches, product liability, and corporate misconduct, and she enjoys applying her skills to new and challenging subject areas.
Mariah is motivated by the opportunity to help people harmed by corporate malfeasance, especially when individual claims might not otherwise be addressed. She views class actions as a vital tool for achieving meaningful relief in those cases. Mariah earned her law degree from the Georgetown University Law Center in 2022, where she served as articles editor for the Georgetown Environmental Law Review and worked in the school’s Environmental Law Clinic. She also gained experience at the New York Attorney General’s Environmental Protection Bureau, focusing on toxic waste disposal and lead exposure from drinking water.
Representative Experience
- Verthelyi v. PNMAC Capital Management, LLC and PennyMac Mortgage Investment Trust, Case No. 2:2024-cv-05028 (C.D. Cal.): Co-counsel in putative class action involving violations of the LIBOR Act.
- FritzCo LLC et al v. Verizon Communications Inc. et al, Case No. 1:2021cv10432 (S.D.N.Y.): Represented plaintiffs in case involving data breach of confidential information.
- In Re: Philips Recalled CPAP, Bi-Level Pap, and Mechanical Ventilator Products Litigation, Case No. 2:21-mc-01230 (W.D. Pa.): Represented plaintiffs in multi-district litigation alleging claims for economic losses, medical monitoring and personal injury in connection with Philips’ recall of millions of CPAPs, BiPAPs and ventilators that contained polyester-based polyurethane foam that degrades into particles and emits volatile toxic compounds.
- Mator v. Wesco Distribution, Inc., Case No. 2:21-cv-00403-MJH (W.D. Pa.): Represented plaintiffs in ERISA class action lawsuit alleging breach of fiduciary duties by imprudently allowing the Wesco Distribution, Inc. Retirement Savings Plan to pay unreasonable recordkeeping and administrative expenses and retain higher-cost share classes of funds when lower-cost funds were available.