I would get an attorney or agent involved and in reality you should only be dealing with him as he owns the home unless there is a court order elsewhere that gives her some rights tothe propertyI think it's possible the final decree of divorce or the property settlement agreement required her to give him a deed in return for him paying her equity. 

And they’ll have to declare that interest on their taxes (Though the kids can then deduct it from their taxes.)

According to the water meter, approximately 1 days after being served the court summons for eviction, the tenant turned on all of the faucets in the home and ran them for about 55 days.

There were court rulings recently requiring auctions like this to refund the overage to the owner which in this case is the person who bought it at the last minute from the heir. 

Since the lease was with both then you need to make the check out to both, to do otherwise would be making a legal determination which is what the domestic court is for, and where they can take their issue to resolve. 

After that, I would encourage you to go to your county recorders office / court to request data yourself.

Court house step auction was a waste of time as the REO bank would step in and bid a price equal to the mortgage when they did not receive a bid equal to the unpaid mortgage.The other issue is I often cannot view many of the properties as they have squatters.

While I realize that if a person really wants to find out who owns the LLC, they ultimately can with some personal effort or potentially the courts, I didn’t want people to be able to easily look up that information online (ie a simple Google search).

If they settled out of court, why didn't insurance pay everything? 

Would recommend documentation to make sure you’re covered if you have to go to court to evict.