Subsection (2) applies to a demoted tenancy of a dwelling-house in England that—
If the landlord has served a notice within subsection (3) on the tenant before the end of the demoted tenancy then, on ceasing to be a demoted tenancy, the tenancy becomes a secure tenancy for a term certain that is a flexible tenancy.
The notice must—
The length of the term of a flexible tenancy that becomes such a tenancy by virtue of this section is that specified in the notice under subsection (3).
The other express terms of the flexible tenancy are those set out in the notice, so far as those terms are compatible with the statutory provisions relating to flexible tenancies; and in this subsection "statutory provision" means any provision made by or under an Act.