Pujari's practice focuses on environmental and white-collar defense, class and mass actions, False Claims Act litigation, and crisis management. She has acted as lead counsel in high-profile matters under the Clean Water Act, Endangered Species Act, the Superfund law, and other federal and state environmental statutes. Her representative work includes defending a global remediation contractor in parallel False Claims Act and mass tort actions, representing a Class I railroad in derailment-related litigation, and resolving numerous criminal environmental investigations with no charges filed.

Rheinheimer represents clients in complex environmental, energy and real-estate litigation, class and mass actions, False Claims Act matters and state and federal enforcement defense. He regularly advises clients on land-use and NEPA/CEQA disputes. His recent matters include defending an environmental remediation contractor in multiple governmental enforcement actions and class actions arising from a Superfund site, representing a railroad in a class action and civil enforcement proceedings following a derailment, securing dismissal of charges for an individual in an Endangered Species Act/Lacey Act prosecution, and successfully challenging voter initiatives that sought to restrict large-scale energy and development projects.