While the heater issue adds extra stress, addressing it promptly will protect you from further fines and penalties.

I’m going to echo what Tim Delaney and Rick Albert said: $8,000 isn’t a lot to work with, no matter where you choose to invest.

I like @Tim Delaney suggestion. 

One can write a lot on a piece of paper and tenants will sign it - and then promptly forget about all of it and misplace their copy.

Using automation can certainly help at scale for easy things, but if you have one STR and can't be bothered to respond promptly to your guest, I can guarantee this business will not go well for you.

After both parties sign the lease, the tenant receives an email prompting them to log in to their portal and pay their balance.

@Matt HolmerThank you responding promptly.

Lazerow said if you act promptly, the seller will have a greater likelihood of having some of the "windfall $" to pay your client when a judgment or decision in your camp's favor is rendered.

I can't speak to what time these slobs left as I don't require notice but the cleaner was there promptly.  

The owner can designate a host who shall be responsible, and authorized, to act on the owner's behalf to promptly remedy any violation of these standards or the permit.