Education
- J.D., with Distinction, Maurice A. Deane School of Law at Hofstra University (1993)
- B.A., Swarthmore College (1990)
Admissions
- New York
- U.S. District Court for the Eastern District of New York
Peter Mastroianni is Chief Innovation Officer and AI Partner, leading how RJLF integrates artificial intelligence across litigation and operations. With more than 30 years at the intersection of law and technology, he now dedicates his practice exclusively to evaluating, building, and deploying AI-driven solutions in legal workflows.
Peter chairs the firm’s AI Task Force, a multidisciplinary team that evaluates emerging tools, implements the best of them, and develops bespoke solutions for RJLF’s litigation needs. The goal is sharper accuracy, faster work, and real strategic advantage for the firm’s clients in complex disputes.
Before moving fully into this role, Peter built a distinguished practice in ESI, e-discovery, electronic evidence, information governance, and knowledge management. As Discovery Counsel, he oversaw the collection, review, and production of documents in high-stakes litigation, pairing human judgment with advanced analytics. His clients have included leading companies such as Arconic, Alcoa, Merial, Rambus, and Corning. He also has advised organizations on information governance and compliance strategies that minimize risk and maximize operational efficiency.
As a founding partner of Reichman Jorgensen Lehman & Feldberg LLP, Peter played helped build the firm’s technological infrastructure from day one, drawing on a background in entrepreneurship and deep technical fluency. Earlier, at McKool Smith, he managed large-scale document reviews in complex cases, often coordinating teams of hundreds of attorneys.
Peter earned his J.D., with distinction, from Hofstra University School of Law, where he was a member of the Hofstra Law Review and interned for the Honorable Dorothy Eisenberg in the Eastern District of New York. He holds a degree in philosophy from Swarthmore College. In 2026, he was featured in "Trying a New Model" in the Swarthmore Bulletin (Winter 2026), which highlighted how Swarthmore alumni co-founded RJLF and pioneered a litigation model that breaks from traditional firm structures by eliminating billable hours, flattening hierarchies, and prioritizing efficiency and collaboration.
Representative Matters
Kove. Served as Discovery Counsel for Kove IO in its patent infringement case against Amazon Web Services, which secured a $673 million award, a $525 million verdict plus $148 million in interest and the largest standing patent victory of 2024. The case centered on foundational cloud storage technology capable of managing hundreds of trillions of data objects. Oversaw the collection, review, and production of a large electronic record, applying advanced analytics and AI-assisted review to manage volume and surface the evidence the trial team needed.
Densify. Served as Discovery Counsel for Densify in multiple patent cases against VMware involving server virtualization and cloud computing technology. The lead case produced a $236 million verdict and a finding of willful infringement after a two-week trial in the District of Delaware. Managed document collection, review, and production across the related actions, including matters against Turbonomic.
Cirba. Served as Discovery Counsel for Cirba (d/b/a Densify) in its patent infringement case against VMware, which produced an $84 million willful infringement verdict after a five-day jury trial in the District of Delaware, the second time a jury found VMware willfully infringed. Directed the discovery process for technology covering advanced server virtualization.
Droplets. Served as Discovery Counsel for Droplets in its patent case against Yahoo in the Northern District of California, which produced a $15 million verdict, raised to $27 million on post-trial motions, over patents covering pioneering technology for interactive websites. Also supported the consolidated action against Nordstrom, which resolved favorably.
Arconic. Served as Discovery Counsel for Arconic in its trade secret and antitrust case against Novelis in the Western District of Pennsylvania, involving a pretreatment process for the aluminum used in Ford's F-150 pickup truck. Oversaw the collection, review, and production of documents in a multi-hundred-million-dollar dispute that included defense of Novelis's breach of contract and antitrust counterclaims.