We plan to sell, keep the land, charge lot rent, and upgrade the community.

You can then sell the option to a solar developer, but they too won't execute the lease until they confirm they can develop.

Living in your home the next 2 years to avoid capital gains tax only applies if you are planning to sell it within the next 5.

Photograph everything before you start cleaning-though without similar photos of the move in condition, you may have problems with some things.Then decide if you want to keep the home as a rental or sell it. 

Everything will sell, just a matter of when/how.

It may make more sense to sell and buy a different property.Regarding that property, don't assume an LLC is the best path.  

You're putting in 80k all in, and selling potentially for 115k after 4 months - I think you could find an area with better margin in my opinion. 

Google "how do I sell my house fast in X".

But to get anywhere, you need to "sell the ask". 

I have not bought anything from them, but I see their deals all the time.Most of them way over priced.I think their model is buy dirt cheap, sell  very high and convince people by offering 3 years rent guarantee.