I spoke with my insurance agent I normally use about getting a policy on the property to get rid of my lender placed insurance, and then adding the new buyer as additionally insured.

I decided to buy the property from my grandfather using a gift of equity, which allowed me to take over ownership without having to come up with the full down payment and pay for the tax lien and his closing costs.

Quote from @Adam York: Contact your insurance provider and let them know you intend to rent out the home.

Other areas constantly threaten to curtail the ability to use homes for str whereas sevier county is based on the rental of cabins and they have zoning that can never be rescinded to guarantee it. 

Welcome to the community, Randy! 

To determine what to offer on a rental property:Determine reasonable market rent, NOT the highest!

Even if they do pay all the taxes, they don't get to use the benefits they are paying for (medicare, social security, etc.).

That means paying all cash isn’t an option unless you plan to bring another $600k to the table. . 

If you're using Zillow or the tax district or almost any public facing website, I always question how good the comps are.   

Have you thought about trying to do a sub-to or any sort of partnership to do a BRRRR.