I have told them that it was an act of God and that is what their insurance for their automobile is for.

There'll be separate insurance policy for each of your rental properties, your homeowner, plus your automobiles.

It actually does happen in the heavy equipment business, trucking, automobiles, and probably boats.

They are like automobiles, they depreciate the day they drive off the lot.Consider building on wheels and selling outright to buyers.

@David Hansen I use USAA for my personal residence and automobile, however, for my investments I use different insurance products.  

@Andrew Neal It works great for automobiles for my work....

I have:- Personal automobile insurance- One property with home insurance (both under my LLC)Would I get the umbrella policy under my auto insurance and have it cover the property, or do i get the policy on the LLC's home insurance policy, or is it a separate policy altogether?

You use to get 10 mpg from the standard automobile now you get 20-25 mpg.

However, if we can get a automobile loan for 3.99% (ideally 2% or less) or less and keep the cash on hand for down payment of a property what would be the better option?

Keep your insurance, just have them adjust your automobile to fewer miles or just comprehensive coverage.