Also, half of all LLCs get thrown out in court because they aren't managed correctly.

Asking in the correct forum will get a better response.Read the RULES!

So then you can add several properties under that same LLC if in the same state correct?    

Agree , those are all incredibly important as is good property management and the ability to price the property correctly based on your competitors rates( dynamic pricing ) . 

Asking in the correct forum will get a better response.Read the RULES!

There is nothing illegal as long as the property is zoned correctly.

This is correct, but that .5% is IN ADDITION to all the other closing costs associated with a refinance (Title/Escrow Fees, prepaids, and depending on the bank, Underwriting / processor costs) - so in reality it can be a little more expensive to refinance with IRRRLs.

This won't change the numbers at all, but it will correctly reflect the personal ownership of the RV.Since the RV is in our personal name, and our two LLCs use it for travel, should we treat the RV as a separate rental business (sole proprietor) and rent the RV out to our LLCs when needed for travel?

If I am correct (sorry if I have that wrong), there isn't a big win in it for anyone, even an underperforming asset, to help someone get some experience on their listing.

Storm sewer, storm pond, sewer lines, water access, fire hydrants, public bathrooms, surface coverage, sidewalk or bike paths, setbacks, power lines and right of ways known and unknown, road access, etc.              5.