Where the landlord is required by a notice under section 80 to supply any summary falling within section 79(2)(a), and any information necessary for complying with the notice so far as relating to any such summary is in the possession of a superior landlord—
Where—
the landlord shall on receiving the notice inform the auditor as soon as may be of that fact and of the name and address of the superior landlord, and the auditor may then give the superior landlord a notice requiring him to afford the facilities in question in respect of the document.
Subsections (3) to (5) and (7) of section 81 shall, with any necessary modifications, have effect in relation to a notice given to a superior landlord under subsection (2) above as they have effect in relation to any such notice given to a relevant person as is mentioned in subsection (3) of that section.