You didn't say how old you are. Just remember that at some point, due to age and/or health issues, you will more than likely have to come off the road. What will you do then? Around here, it's referred to as having an exit plan.
It's a very BAD idea to sell a home and put the money into an RV. RVs depreciate quite badly, and it will be worth much less when you sell one, as opposed to real estate, which usually appreciates. Fortunately, you already HAVE an RV, so you don't need to sell your home in order to buy one.
You're in Miami. Do you LIKE spending winters there? It's an ideal place to 'reverse snowbird'. Visit Canada, Alaska, and the northern part of the US during warm weather and return to your home for the winter.
Would your home be a good place to spend your last years in? Does it have stairs you would need to climb to get to the bedrooms? Could the bathrooms be adapted to serve someone in a wheelchair or using a walker?
Maybe you should sell it and PUT THE MONEY IN SAFE INVESTMENTS so it would be there to buy a new, more suitable home, when you come off the road.
