Proskauer Rose LLP

Proskauer Rose LLP manages an expansive appellate docket with a notable geographic reach encompassing the New York and California state courts alongside numerous federal circuits. New York-based Mark Harris co-leads the group and handles a diverse range of disputes involving IP, administrative law, and labor relations. Fellow co-chair John Roberts, operating from Boston, is a distinguished advocate for major sports leagues and financial institutions, while also leading dozens of appeals before the First Circuit concerning the fiscal restructuring of Puerto Rico. The group frequently represents a high-profile roster in the life sciences and asset management sectors across complex bankruptcy, antitrust, and constitutional law appeals.