"I paid $900. in sales tax to Florida for a rental sale tax fee"
Regardless of whether the entirety qualifies as a "sales tax", the amount you paid does not qualify as a separately stated item for the purposes of the itemized "sales tax" deduction. Those separately stated items are limited to the likes of motor vehicles, planes, boats, manufactured homes and materials.
See also https://turbotax.intuit.com/tax-tools/tax-tips/Tax-Deductions-and-Credits/How-to-Write-Off-Sales-Tax...
