law: 6. Ownership of apartment subject to conditions.-
  Where any allotment, sale or other transfer of any apartment has been made, whether before or after the commencement of this Act, in pursuance of any promise of payment, or part payment, of the consideration thereof, the allottee or transferee, as the case may be, shall not become entitled to the ownership and possession of that apartment on to a percentage of undivided interest in the common areas and facilities apurtenant to such apartment, until full payment has been made of the consideration thereof together with interest, if any due thereon, and where any such allottee or transferee has been inducted into the possession of such apartment or any part thereof in pursuance of such allotment or transfer, he shall, until the full payment of the consideration has been made, continue to remain in possession thereof on the same terms and conditions on which he was so inducted into possession of such apartment of part thereof.