The places we use in Minnesota want to "pre-qualify" the dog before they accept them for boarding. It takes a couple of days to process the application. You might want to call ahead, explain your situation, and see what policies are at the local boarding places in Florida.
Alfred
2005 Sightseer with Workhorse, ReadyBrute Elite towing 2003 Honda CRV
Map below shows states where we actually camped.....