You missed an important item: Depending on how a person does #1 or #2, it could get them: A fast-pass to the "Principles Office" for "bullying" and now there sitting in "detention".... 

It can potentially be deductible as an ordinary or rental expense, an itemized deduction or simply non-deductible. 

Do my guests really need a (insert item for the home here)?

There’s normally action items that can be implemented into your management process that are more effective. 

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.).  

Make sure that your spouse changes some of the items.

You're investing in RE for long-term wealth, not a few hundred a month that can be wiped out with one CapEx item.

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.

TIC in this case is virtually synonymous with coop.finance items- There are several ways to finance TICs – group loans and fractional loans are the most common. - Fractional TIC loan: you can now own a unit in a building that isn’t classified as a condominium, yet from a financing perspective, will feel that way.