This Policy extends to include the legal liability of the Insured in respect of acts of the tenants for which they may be responsible.
Provided that the indemnity given is on the condition that it is contingent upon the liability incurred not being covered or indemnified by an insurance policy taken out or should have been taken out by the tenant under the tenancy agreement with the Insured, and provided always that the existence of this clause shall not be made known to tenants or occupiers or prospective tenants or occupiers without prior written approval from Insurers.