Happy New Year to you. Sorry to hear about the problem. Surprised to hear what you have gone through as Mah Sing is a big developer. Not staying there, I won't know about it. 

To answer your questions as I have experience on that :

1. As long as you have lodged the defects officially and that the develop has acknowledged it in writing (all black and white) before the expiration period, they have to complete it. It is only the new defects that are not covered. So, you must get all the defects lodged. Secondly, you must ensure that they acknowledge the submission and everything is black and white and not verbal. Verbal does not help at all.

2. Construction during off hours. This is termed as "nuisance". It is the management's duty to ensure that it does not happen. If it happens, you can lodge a report or complaint to MBPP's Department of Building.

Hope that helps

Already overbuilding in Tg. Bungah and still some more coming up. How are they going to settle the traffic and congestions???

With the advent of AirBnB. I think there is a drop in interest in service apartments as tourist and visitors tend to stay in homes or private apartments. I know for sure hotel occupancy has dropped and some of the hotels are in a semi-panicked mode. For foreigners, many of them are staying in my apartment blocks for a few weeks. Just to experience what life is at a local level. Many people including myself are not very keen to open up apartments to visitors on a short term basis. Security will be poor.

yalah... developers just want to sell. if they can sell all to one person, they will also do it. after that can close shop already mah ! No need to pay so much for cost of businesss.