626. Documents held by superior landlord.

Where a landlord1 is required by a notice2 to afford the surveyor facilities for inspection or taking copies or extracts in respect of any document which is in the custody or under the control of a superior landlord:

  1.  

    (1)     the landlord must on receiving the notice inform the surveyor as soon as may be of that fact and of the name and address of the superior landlord3; and

  2.