Any stipulation made on the sale of any interest in land after the commencement of this Act to the effect that the conveyance to, or the registration of the title of, the purchaser shall be prepared or carried out at the expense of the purchaser by a solicitor appointed by or acting for the vendor, and any stipulation which might restrict a purchaser in the selection of a solicitor to act on his behalf in relation to any interest in land agreed to be purchased, shall be void; and, if a sale is effected by demise or subdemise, then, for the purposes of this subsection, the instrument required for giving effect to the transaction shall be deemed to be a conveyance:
Any covenant or stipulation contained in, or entered into with reference to any lease or underlease made before or after the commencement of this Act—
shall be void:
Save where a sale is effected by demise or sub-demise, this section does not affect the law relating to the preparation of a lease or underlease or the draft thereof.
In this section “lease” and “underlease” include any agreement therefor or other tenancy, and “lessee” and “underlessee” and “lessor” and “underlessor” have corresponding meanings.