The legal tangles caused by the management shakeup at Freddie Mac are getting further snarled, as the GSE’s safety and soundness regulator is now challenging the termination packages of two former executives who were forced to resign in June. “I think it’s going to be very messy legally,” said Bert Ely, an industry analyst and GSE critic. “There is a question about the authority of [the Office of Federal Housing Enterprise Oversight] to enforce