Monroe county is handing out very large fines for those listing short term rentals on airbnb for the upper keys. Most areas in the upper keys do not allow renting for less than 28 days. Monroe county has made it illegal to ADVERTISE rentals for less than 28 days, so even if you dont host, you will still be fined. They are not giving any warnings. This is being fought in court, but for now it is illegal and will result in fines of $6000 to $10,000. It would be beneficial if Airbnb could send reminders to all their hosts in the upper keys, as this is becoming widespread. The county code enforcement officials are merely copying the listings from Airbnb and fining everyone. On a typical day at the hearings in Monroe County, they are collecting over $150,000 in fines.