Where in the intended exercise of any power of leasing, whether conferred by an Act of Parliament or any other instrument, a lease (in this section referred to as an invalid lease) is granted, which by reason of any failure to comply with the terms of the power is invalid, then—
the lease, if it was made in good faith, and the lessee has entered, thereunder, shall take effect in equity as a contract for the grant, at the request of the lessee, of a valid lease under the power, of like effect as the invalid lease, subject to such variations as may be necessary in order to comply with the terms of the power:
Where a lease granted in the intended exercise of such a power is invalid by reason of the grantor not having power to grant the lease at the date thereof, but the grantor’s interest in the land comprised therein continues after the time when he might, in the exercise of the power, have properly granted a lease in the like terms, the lease shall take effect as a valid lease in like manner as if it had been granted at that time.
Where a receipt or a memorandum in writing confirming an invalid lease is, upon or before the acceptance of rent thereunder, signed by or on behalf of the person accepting the rent, that acceptance shall, as against that person, be deemed to be a confirmation of the lease.
The foregoing provisions of this section do not affect prejudicially—
Where a valid power of leasing is vested in or may be exercised by a person who grants a lease which, by reason of the determination of the interest of the grantor or otherwise, cannot have effect and continuance according to the terms thereof independently of the power, the lease shall for the purposes of this section be deemed to have been granted in the intended exercise of the power although the power is not referred to in the lease.
This section does not apply to a lease of land held on charitable, ecclesiastical or public trusts.
This section takes effect without prejudice to the provision in this Act for the grant of leases in the name and on behalf of the estate owner of the land affected.