I have some light flexibility, especially if they rarely ask for changes, but I always make sure someone goes the day off to mitigate any damage or problems that may have arisen. 

No damage to the condo and power is on, but no city water. 

We were going to stay here but someone rented it for a week that was displaced from another STR that had damage. 

Wow while your story is really inspiring, I found the most impressive part is your credibility and reputation.

@Brie Schmidt also has her own brokerage that has great reputation with investors. 

They are both healthy and don't appear to be doing any damage to the house other than maybe dropping leaves and twigs every now and then.  

So long story short we have a traveling nurse staying at our rental that got some water damage when the roof was being replaced, they don't have renter's insurance (which we require in the renter's agreement they sign), water damage has been remedied and is cosmetically minimally affected and still very much in a liveable state.

Usually this means that the tenants have to provide access (within reasonable common notice), have to cooperate in access to make repairs (if they don't they would be liable for any additional damage caused by delay in repair), and subject to paying for a locksmith because you had to change the locks because they wouldn't give keys or provide access. 

With my purchase and sale agreement if that ever happens and can sue the seller for not performing, prevent the sale to someone else, and get money for specific performance and/or damages."

But the damage was done—I had already gone through three management companies, three evictions, and a lot of lost rent and legal fees.