13(1)A tenant is not liable for any costs incurred by any other person as a result of the tenant’s exercise of the right to a peppercorn rent, except as referred to in—
(a)sub-paragraph (4),
(b)paragraph 14 (liability where claim ceases to have effect), and
(c)paragraph 15 (liability where tenant obtains the variation of the lease).
(2)A former tenant is not liable for any costs incurred by any other person as a result of the former tenant’s claim to the right to a peppercorn rent, except as referred to in sub-paragraphs (4) and (5).
(3)A lease, transfer, contract or other arrangement is accordingly of no effect to the extent it would provide to the contrary.
(4)A tenant or former tenant is liable for costs incurred by another person in connection with proceedings before a court or tribunal if—
(a)the court or tribunal has power under this Schedule or another enactment to order that the tenant or former tenant pay those costs, and
(b)the court or tribunal makes such an order.
(5)A former tenant is liable for costs incurred by a successor in title to the extent agreed between the former tenant and that successor in title.
(6)In this paragraph and paragraphs 14 and 15—
“claim” includes an invalid claim;
“former tenant” means a person who was a tenant making a claim to the right to a peppercorn rent, but is no longer a tenant.