For what it’s worth, I do know of at least one wholesaler who has worked in Florida for years (though he does use a title company for every deal, he doesn’t close them himself). Given the logistical challenges with assigning contracts, I wouldn’t recommend trying to do these types of deals without a title company – it requires A LOT more running around and coordination than just paying cash and buying the property yourself.
If you have plenty of time and are not in a hurry to sell the property, and would like to do very little work I would suggest listing it with a broker. They will be able to create a listing for the property, answer phone call and emails, and handle the closing. The downside of this approach is comes at a price and you typically only get local exposure and most real estate agents who deal with both land and homes will most likely put more effort into selling their homes as the commissions are greater.
Moreover, even though you’ll not have a lump sum of money to place against another piece of land or some other big-ticket item such as a vehicle or home construction, you will have the guaranteed income to match your payments, or some such new purchases, including the interest. You’ll also get to keep a lot more of the money you’ll receive, because you’ll only pay income taxes in small installments over the years, rather than all at once, which is likely to bump you into a higher tax bracket.