Prominent Miami litigator Jeremy Alters has merged his law firm with the New York class action firm Morelli Ratner to form a 20-attorney shop that focuses on mass torts, personal injury and gender pay discrimination.

Morelli Alters Ratner will operate offices in New York, Miami and Washington, D.C. Alters will manage the Miami office, Benedict Morelli will remain in New York and David Ratner will be in charge of the Washington operation, which is scheduled to open in January.