In part because the sink is under the window which to me seems like a natural spot for it. 

Putting in a ramp, adding grab bars in bathroom, raising the sink height, etc.  

Get there in person and find the house in a sink hole or wrapped in meth lab tape or some other huge issue not seen online.#5 There used to be a lady named Sandra Edmonds I believe and she went by the name of TAx Lien Lady. 

I have a second condo property where the water quality became unacceptable (PFAS) so I put a filter on the sink and make people aware the fridge water no longer works.

Upon inspection, the pest control company found holes in the walls under the kitchen and bathroom sinks.

Maybe the P trap under the sink is not filling with water correctly and allowing sewer gas to come back in.  

And no matter what, keep an eye on how your financing structure lines up with your exit strategy.Where do you see the biggest risk.. sinking money into improvements or letting the buy back linger too long?

Great question @Robert Rixer.I never got to the point where I had to make that call, but at the end of the day, I'm not willing to go down with a sinking ship.

If there are pets in the unit take a pan from under the sink and fill it with water so there's something to drink.

They would rather keep their house than sell it.Let that sink in.