I definitely have reservations about buying a revived project. Obviously the new developer will not be re-building the superstructure, but after 3-4 5 years of our tropical sun/rain, I'm pretty sure enough water has seeped into the concrete frame of the building and weaken it to some extent.

For those that do not understand, concrete wraps around steel bars to form reinforced concrete,since the building has been abandoned and there is no plastering/paint on the outside for such an extended period of time water definitely has been seeping all over the RC structure. When there is moisture steel will rust and it will lose strength over time. Therefore the longer it is abandoned, the more dangerous it becomes.