I am living in a property for the last 40 years . For the last 20 years no lease rent was collected as the lessor died. To our knowledge the lessor did not execute a will . So we were paying prop tax and all other arrears meant to be paid by lessor. Now we have received a lawyers notice from an advocate claiming to represent all legal heirs of the lessor. This is highly unlikely and the advocate is probably lying or claiming to represent the legal heirs of the lessor without any succession certificate. How can I handle this matter ? Is this a criminal case of impersonation here ? We have asked for the succession certificate earlier and the other party could not produce it.