@Rita Medeiros For you to prove that the mice are as a result of anything she is doing since she moved in would be impossible.

Or find a local design firm that has done cabins where they can show you proven rent results from cabins they've designed and have them charge you by the hour. 

As a result, I’m uncertain if any of the properties have illegal additions or modifications.

Houses that sustained fire events have long term consequences including structural damage and mold that results from water intrusion required to extinguish the fire.

This helps lower your holding costs and results in better returns at the end of the day

Same result as above.A third alternative is forced inflation.  

And for vast majority of persons delayed debt payments results in accruing debts, because they find they have less left to pay down than hoped.

@James CarlsonThank you for the input and I'll keep posted on the progress and results.

All liens are removed from the property as the result of sale at auction.We won the bid, wrote the check to the sheriff within 30 days, and today the deed was recorded, we are the owners!  

Also if it is intended to possibly be a rental you should calculate the end result of the acquisition, the debt service, the rehab, etc and pretend to get a loan to refinance. then look at the potential rent to offset that monthly cost and see if it would cash flow.