House quality issue dispute with condo management

Hi　Uncle Chung, 　 Need your help and guidance on how to deal with my condo management for house quality issue. 　 I am　a foreigner working in Sg. I bought　a condo flat. After moved in　last year,　I found　out that the exterior wall of　my flat has some problems which cause rain water leaks through the wall　into my　flat.　 As consequence,　the furnitures　and interior　wall are　damaged by the water. Importantly, some sockets and wires　on the floor would be a big theat to human safety if　water cames in to them.　 　　The issue was　reported to　condo management office　several times as they should take responsibility for exterior facilities. But they didn't take immediate action to repair the wall.　 I talked with condo manager again recently about the action plan to repair the wall and compensate the loss caused already, but his attitude is unclear. 　 As foreigner, I　never expereinced such　issue before. Therefore　seek your guidance: 　 1) What should i do to push the condo management to thoroughly　fix the exterior wall issue? from legal viewpoint, what's condo management's liability and responsibility? 　 2) As my funitures and interior wall decoration were damaged already, I would give a reasonable quotatoin to condo management for compensation. What　if they don't agree to compensate anything or they can only cover a small part? 　 3) I face the potential safety issue if rain water　comes again and touch the sockets in my flat.　Since it happens couple of times,　whenever　it rains, I feel worried about the water leakage issue and would ask for compensation for mental/spiritual damage. is it reasonabel and supportable from legal viewpoint? 　 Look forward to　your reply. Thanks.