I dont see why not, I'm like you, and potentially facing the same problem.
What you mean you want to keep your apartment for 6 months (rental? or your own? )
If you're not on EP, you need to be out of Singapore within 6 weeks I think, but you still can come back to Singapore using visitor visa right. So as long as you keep up your payments, I dont see why not?
I'm sure plenty of foreigners (not on EP nor a PR) have a bank account and own an apartment in Singapore........?
