The police and firefighters will return to their jobs April 1, but will be guaranteed their jobs only through the end of June, said Redd's spokesman, Robert Corrales.
"We continue to have ongoing discussions with the governor's office to hopefully sustain those rehires" through the next fiscal year, Corrales said.
The $2.5 million comes from rent, sometimes late, according to past published accounts, paid to the city by the South Jersey Port Corp., a quasi-state agency.
Redd also said she would work with Christie's office and county and local officials to create a "regionalized public-safety and shared-services plan."
Redd and city unions have tangled over her call for concessions she says are needed to bring the city budget back in line. Corrales said no new union talks are scheduled.
Before the layoffs, the city asked for 20 percent wage reductions, said FOP president John Williamson, and the union countered with an 18-month wage and step pay freeze. The union also agreed to shift-changes, furlough days and attrition through retirement, he said.