Fla. Stat. § 132.13

In case of refunding bonds which are not exchanged for bonds outstanding but are sold, they shall not be delivered until payment in full has been received therefor. Pursuant to agreement between unit and purchaser made either before or after the sale of the bonds, the bonds may be delivered in deferred installments and the total purchase price shall be divided and paid on the installments as may be agreed, but delivery shall not be deferred more than 1 year after the sale.