I don't know what the ratio is, I'm just pulling that number out of thin air.

A: "Oh, I don't actually live here, I'm just staying here for a few weeks with a friend"A: "The seller just asked me to stay here because people kept breaking in and vandalizing the place, that's why the appliances are gone"A: "I love all the neighborhood pets, but I absolutely hate the business next store because their air conditioner squeals when it runs ALL SUMMER!"

I've seen plenty of people add small kitchens for Air BnBs so I assume it is.

That's what I think a fair price is.It does depend on how far it is to the roofing supply store, how far it is for the workers to travel, if there's any rotting wood that needs to be replaced and how busy they are (busier = higher profit).You could buy a couple ladders, a compressor, a 100ft extension cord (14/3), 50 ft of rubber air hose, a roofing nail gun, a caulk tube a couple shingle removers and pick up some day laborers who know how to roof. 

The reason I ask if it used to ascertain damage to something on the lot (water/sewer/utilities hookups or something) and you don't have pics and mutually signed documentation from the lessor/lessee upon each tenant's move in prior to your ownership, would you be able to justify a charge upon move out?

I joined as a renter to check it out it and saw a property from American homes 4 rent, it seems similar to hotels and air bnb.

You will have more bookings and less chance of damage/code enforcement calls with the smaller properties. 

It was an out of state investor that wanted the property to list as an Air BnB.

A slow leak has caused $2.5K damage to a rental property of mine.

The water is always cold, but at least in the summer it is nice outside of the water and the winter air temps are probably higher than the Tahoe winter air temps.