Anyone decided to leave RV year round in FL?

You won't have any legal issues as long as registration/tag is up to date but your MH will be a melted mildew cave unless you have it in covered storage.

Many RV parks throughout the country require that your RV be registered and tagged. You'd better check with the Florida authorities on the ruling there.

Personally, I would not leave a motorhome sit in the humid, hot Florida sun for months on end. You might want to sell it and get a Park Model trailer and place it on a lot in Florida. I'm sure there are many for sale in the parks and you wouldn't even have to have it moved.

Works better with trailers than with motorhomes which like more exercise. Probably legal, if that is your only question.

I don't snow bird (unfortunately). If I did and I had a TT or 5th wheel, that would be an option.
I would not leave a motorhome sit unattended for several months. I'm sure some do with no problems. I like to start, drive (if not snowed in) and exercise the generator at least once a month.
But, that's me. :)

I leave my trailer in Florida but keep it tagged in my home state. No problem in four years.