You know, you might want to consider sitting down with a real estate agent next time you're in Florida and asking all your questions there. In the US, the real estate people handle quite a bit of the legal side of the sale, and they are trained to understand the taxes and legal side of property transactions.

Obviously, their advice comes with a view toward making a sale, but you might be able to get most of your questions answered at no cost to you.
Cheers,
Bev