If I spot my neighbor's problem tenant committing a lease violation ( i . e . throwing nails on my property ) , and I tell that landlord about it as a warning that the nails could cause damage to my property and tenants . But the neighboring landlord doesn't do anything to remove the tenant , is the landlord guilty of negligence ? How can I pressure the landlord to remove the tenant ( who has plenty of other violations : harassment violations , littering cigarettes , etc . , ) ?