$20k Water Bill Balance - Who is Liable?

[Zachary Brown]

Getting ready to sell a rental property when I saw the most recent water bill balance was $20,000. Turns out, the (month to month) tenant was out 5 months ago before a pipe burst and the city turned it off. During this time my PM was pursuing an eviction, but had to get a certificate of occupancy to register with the city first. Finally, got a search warrant to do the inspection and realized the tenant had been gone since December 2022. I only have communication from the PM indication the tenant was in the house to their knowledge. Any advice on how to remedy this? Who could be liable? Oh, forget to mention there is also foundation damage. Any advice welcome. Thank!