But anything with an appraisal of any kind is not cash and should not be called cash.

Commonly it's gas.What about electric and gas?

You will have to put on a stain inhibitor of some kind to keep it looking nice.

Can you share what kind of proof you will require tenants to provide when they claim their pets are service pets/ ESG, will there be any different proofs between Service Pets and ESG? 

Depends on how old they are - kind of hard to tell from your picture.

Quote from @JD Martin: Those things are true but I'm always puzzled by these kinds of posts.

I was one of the early adopters for this kind of project.

You find the house completely trashed with missing appliances and cabinets, tenants were cooking meth, windows broken, etc. 6-8 months of unpaid rent, unpaid utilities, thousands to empty the abandoned property and trash, $50,000 to completely renovate the property and make it rentable again, plus all the time, energy, and stress along the way.I would actually argue this is pretty common and not even the worst-case scenario. 

Common rookie mistakes can impact your property value, income, time, and sanity.

Commonly done.