In terms of inspections, the standard FNMA addendum states:"On or before ten (10) calendar days from the Acknowledgement Date, the Purchaser shall inspect the Property or obtain....not later than ten (10) calendar days from the Acknowledgement Date...the Purchaser will provide written notice to the Seller of any items disapproved."

You have before pictures and video, you have after pictures and video and you have an itemized sheet that they acknowledged and signed at move in.I would also recommend when the tenant gives their 30 day notice that you send them the pictures and video of the before and remind them how the home looked when they moved in and how you expect it to look when you get it back

Unfortunately, by the time you recognize (or chose to acknowledge) the signs, it will be much too late...

Account ClosedDamage from moving is part of the cost of doing business and why you do the following:1) take a security deposit;2) conduct a pre-move-in inspection with the clients and have them sign an inspection report [an example can be found here].3) conduct a move-out inspection when the tenant vacates and have them sign the move out inspection report and acknowledge any damages.The decision to rent furnished is another matter entirely and one you would make based on your location and intended target clientele.

I would like to take a minute to acknowledge something far worse than stupid questions....stupid answers.

Be sure to get it in writing that he acknowledges that you did not receive his original deposit and you will not be returning it; write it into the lease and get his signature.  

.), what can we do if the tenant refuses to sign and acknowledge?

To help make sure, I want to require buyer to either add the tenant balances to purchase price (which will not happen) or sign an agreement waiving his right to those balances and acknowledging that unpaid balances will still be owed to previous owner/manager. 

That most likely would have acknowledged the discrepancy. 

They have exhibited no acknowledgement that this is a "life changing event" for some folks.