(a) Who were the managing agents after the completion of the rental units at Phase 1 of the N2 Gateway project, (b) what are the relevant details of the agreement entered into with the managing agents, including (i) the date that the agreement was entered into, (ii) the duration of the agreement, (iii) details of the (aa) responsibilities and (bb) remuneration of the managing agents and (c) who is currently managing the (i) maintenance and (ii) collection of rentals for these units?