Federal prosecutors say Ponzi scheme purveyor Scott Rothstein deserves a break — just not as much as his defense attorney wants.

The lawyer who turned his fast-growing Fort Lauderdale, Fla., firm into a vehicle for Florida’s largest Ponzi scheme — defrauding investors of $1.2 billion — should spend 40 years in prison, federal prosecutors told U.S. District Judge James I. Cohn in a sentencing memorandum filed Monday.