Too many pitfalls over there and that includes finding a lawyer who you could trust
You could part with large sums of money and later find out you actually own nothing
These new developments seem to be springing up all over Manila so with time anything you buy is going to be considered old = top paying renters want the latest properties

I would also point out that the more wealth you accrue over there usually means eventually someone will work out that you are better off dead and out of the way seeing that everything you own reverts to your wife when you are out of the way = Happens more than most would like to admit

Keep it simple and protect yourself = buy nothing and keep your money in the bank