181. Where a lease contains a building and development provision, the lease, or an interest in the lease, shall not be capable of being mortgaged unless—
(a) the lessee has obtained a certificate under subsection 179 (1); or
(b) the mortgage is required by the lessee—
(i) to enable the lessee to repay money borrowed by him or her for the purpose of acquiring the lease or interest;
(ii) to secure money borrowed by the lessee for the purpose of acquiring the lease or interest; or
(iii) to enable the lessee to comply with a building and development provision of the lease.