(1)In this Part—
“former landlord”, in relation to a lease, means the person who was the landlord immediately before the appointed day, and
“former tenant”, in relation to a lease, means the person who was the tenant immediately before the appointed day.
(2)Where, immediately before the appointed day, the right as tenant under a lease is held by two or more persons in common—
(a)they are—
(i)severally liable to make any compensatory or (as the case may be) additional payment,
(ii)as between themselves, liable in the proportions in which they hold the right as tenant, and
(b)subject to section 74, they are together to be treated for the purposes of this Part as being a single tenant.