(4) After the filing date, and prior to the plan being declared effective, if a housing accommodation subject to this code is vacated, such housing accommodation may only be rented at a rent and upon such terms and conditions as are authorized under this code for a vacancy lease. Notwithstanding the foregoing, if a vacancy lease herein called an interim lease for such housing accommodation is executed in connection with an agreement to purchase such housing accommodation or the shares allocated thereto, pursuant to any Eviction Plan or Non-Eviction Plan, as defined by section 352-eeee, such interim lease:
(i) may provide that once the plan has been declared effective, if the tenant fails to purchase his or her housing accommodation or the shares allocated thereto on the terms set forth in the subscription or purchase agreement, or otherwise terminates or defaults on the subscription or purchase agreement, such tenant may be evicted; and
(ii) may provide for a rental below the legal regulated rent which may, upon the abandonment or withdrawal of the plan, be increased to the legal regulated rent, provided the interim lease or other agreement clearly notifies the tenant of what that higher rental will be. If the plan is abandoned or withdrawn, such tenant remains a rent-stabilized tenant.
(5) If a housing accommodation which was subject to this code is vacated or is rented to a new tenant after any plan which affects such housing accommodation has been declared effective, and a closing thereunder has occurred, such housing accommodation shall not be subject to this code.