Water bill and selling rental

[Kimberly Vallance]

hello all. I'm looking for some information on how to handle the water bill. The bill is in the tenants name. I get a copy if they send a shut off notice (to avoid  reconnect fees-i can switch it to my name if required). The title company is charging me the current outstanding balance on the water bill. The purchase agreement states the tenants have 30 days to move after the close (today). So, do I ask them to pay me back (theoretically because I  don't plan to do it - this is for my education at this point) or write it off? The closer seemed surprised that 1-the house is rented and they have 30 days to move, and 2-that the bill is in their name.