The offer has now been extended through Feb. 28. FC Cincinnati hopes to know by then if they will be accepted as the next expansion team in MLS. Team officials have said they expect to hear from the league before March.
The agreement doesn't specify an exact price for the garage, but county officials previously estimated it would cost $15 million. The funds will come from money made at other parking garages owned by the county.
FC Cincinnati has not yet settled on where they would build their stadium if they're accepted into MLS. They are considering sites in Oakley, the West End and Newport, Kentucky.