If this is a big-ticket item, you might consider legal action against Airbnb.  

Compliance items such as adding smoke detectors, hand rails, fire resistant garage entry-door and new stairs outside.

But, there are certainly several items that would give me pause.  

Review what happened and determine why each item was above or below your expectations so that you can properly plan for next year.Review your prior year goals.Did you buy all of the properties you set out to purchase?

Also, what others have said, the personal touches on what is in your place (e.g. providing all the essentials instead of having people buy TP, coffee, shampoo, etc.) and the quality of those items (no tattered towels, stained sheets, etc.).  

You make the payments to the lender.Oh, and just in case, there are more items to know about when considering a "sub to" transaction but this is just a comment on the payment aspect. 

I haven't filed a claim all these years but insurance is for the what-if and to be used for the high-ticker items, but chances of damages exceeding the 5% is low.  

That could be achieved without spending an inordinate additional amount in cap ex; In fact all I have seen had these items in common1.

At the end i will add a list of items why adding a single ADU in single family zoned areas may not be the best RE option.The most common value add is via a rehab.  

Will work on some of these actionable items