Thank you @Cormac0
I really appreciate you replying. The "flat being sold" should have being the red flag. But they were just so gosh darn nice in their approach !
The pet will be an issue for any other guest. They are working in the city nearby, so, yeah, who minds the dog.
The utility bills will become an issue down the line, at which point if I say something, local municipal by-laws come into play; where the guest/ tenant will have a right to stay unless I can find them another place at the same rental, in the same area.
The 30% discount for an extended period is not looking pretty.
"For warned is for armed."
Thanks for helping me out, I had a real issue last night. As they were so persistent in wanting to view today. I'm going to shut it down, and not head down a potential dangerous path.
Thanks a million @Cormac0