Hi. We have just returned from Singapore where we were a guest.
When we got to our apratment there were signs that the block did not welcome short-term rentals and that owners (not guests) could be prosecuted.
We also received a spot-check from the local housing authority (at 10pm at night) asking us why we were there, if we paid, how many people, where the owner was etc. They were looking for evidence that we were paying guests. They also asked to see passports and inspect inside - which I refused.
If you are renting in Singapore you should ask your host specifically if they have permission to short-term rent from their block.
If you are AirBnb Management - you need to consider if you should accept bookings from Singapore.