Find a way to make sure the buyer actually transfers title FROM YOU. In FL, signing the title over does not "sever" your ownership. State DMV makes it clear that the New Owner has to complete the transfer. If somebody pays for the unit, takes it and doesn't transfer title, then if anything happens, the search will lead back to you.
Using a lender, may actually help with this as noted above. Get everything notarized, too, even if state doesn't require it. Then, if buyer understates price paid to avoid sales tax, you have stronger documentation to show you didn't enable that.