Tenants won't pay water bill

[Mark Kvam]

I am looking at purchasing a small 22 unit MHP mostly owner occupied.  The seller sub metered the water about a year ago but has tenants who have yet paid their bill.  When I purchase I will expect that all tenants pay their bill.  Can I legally shut off their water until it is paid?  What other avenues are typically done?  Tenants are currently month to month but I would expect to have all on new lease agreement when I take over.  Any help here?