I have to clean up the room, wash the sheets, towels and get the room ready for the next guest.In my area, there is pushback from the towns for renting out a whole house.

Plus you get the benefit of the cash flow doing the pressure washing. 

What I am getting at is there may be some more complexities regarding her situation that if you understood would help you in offering her a creative solution.For example, if reason for selling the property  is to just wash her hands of it for one reason or another to simply cash it out - Does she know that offering you seller financing would not only have tax benefits for her, but also help you with your situation in getting a loan on this property. 

Just some Tyvek hazmat suits and a bunch of testing should suffice, then a good wash down.

With absolutely no exaggeration, I literally saw this man's brain washed right in front of me.We're not friends anymore.

It is a machine. 

I got the place painted, carpets cleaned and ultimately had a company come and run ozone machines and it definitely helped with the smoke smell.

My personal machine issues has been tied to the water source. 

Good marketing is not like using a vending machine where you drop in a few coins, pull a lever and get a pre wrapped, ready to eat, snack dropped right in your hands, right when you want.

. ;-) Oops, this destroys your case: (you'd better hide this and not use it in your arguments)[5] The TCPA makes it “unlawful for any person within theUnited States, or any person outside the United States if therecipient is within the United States ... to use any telephonefacsimile machine, computer, or other device to send, to atelephone facsimile machine, an unsolicited advertisement[.]”"