(1)  A provision of a residential tenancy agreement that purports to modify any provision of this Act has no effect.

(2)  A provision of any agreement, contract or other instrument that provides for the tenant to indemnify the owner for any loss or liability arising under this Act has no effect.

(3)  A provision of a residential tenancy agreement that imposes on a tenant a penalty or fine or a charge that exceeds the cost incurred by the owner of the residential premises has no effect.