"Why do I have to mail in Florida state taxes"
The Florida return in TurboTax is to report tangible personal property that is used in a Florida-located business or rental property and is filed with the county property appraiser.
If you do not have tangible personal property to report, choose Skip State in the State Taxes section.
If you proceeded past the warning screens, try deleting the Florida return --> https://ttlc.intuit.com/questions/1900608
If you actually paid for the return, contact Customer Support --> https://ttlc.intuit.com/questions/1899263