Where—
the requisite majority of qualifying tenants of the constituent flats may, before the end of the period specified in subsection (2), serve a notice ("a purchase notice") on the new landlord requiring him (except as provided by the following provisions of this Part) to dispose of the estate or interest that was the subject-matter of the original disposal, on the terms on which it was made (including those relating to the consideration payable), to a person or persons nominated for the purposes of this section by any such majority of qualifying tenants of those flats.
The period referred to in subsection (1) is—
A purchase notice—
Where the property which the new landlord is required to dispose of in pursuance of the purchase notice has at any time since the original disposal become subject to any charge or other incumbrance, then, unless the court by order directs otherwise—
Subsection (4)(a) and Part I of Schedule 1 shall apply, with any necessary modifications, to mortgages and liens as they apply to charges; but nothing in those provisions shall apply to a rentcharge.
Where the property referred to in subsection (4) has at any time since the original disposal increased in monetary value owing to any change in circumstances (other than a change in the value of money), the amount of the consideration payable to the new landlord for the disposal by him of the property in pursuance of the purchase notice shall be the amount that might reasonably have been obtained on a corresponding disposal made on the open market at the time of the original disposal if the change in circumstances had already taken place.
The person or persons initially nominated for the purposes of this section shall be so nominated in the purchase notice; and any such person may only be replaced by another person so nominated by the requisite majority of qualifying tenants of the constitutent flats if he has (for any reason) ceased to be able to act as a person so nominated.
Where two or more persons have been so nominated and any of them ceases to act as such a person without being replaced in accordance with subsection (7), any remaining person or persons so nominated shall be entitled to continue to act in his or their capacity as such.
Where, in the exercise of its power to award costs, the court or the Lands Tribunal makes, in connection with any proceedings arising under or by virtue of this Part, an award of costs against the person or persons so nominated, the liability for those costs shall be the joint and several liability of that person or those persons together with the qualifying tenants by whom the relevant purchase notice was served.