12.
—(1) An agreement made between a housing developer and a purchaser for the sale and purchase of a unit in a housing project which is not intended to comprise a lot in a strata title plan shall be in Form D in the Schedule.
(2) An agreement for the sale of a unit in a housing project which is intended to comprise a lot in a strata title plan shall be in Form E in the Schedule.
(3) No amendment, deletion or alteration shall be made to the agreement referred to in paragraph (1) or (2) without the prior approval in writing of the Controller.
(4) Any amendment, deletion or alteration to the agreement referred to in paragraph (1) or (2) made without the prior approval in writing of the Controller shall be null and void.
(5) The Singapore Academy of Law established under the Singapore Academy of Law Act (Cap. 294A) shall act as stakeholder under the agreements referred to in paragraphs (1) and (2).