What is your opinion on renting out an HDB while living in the condo, how does the stamp duties affect this?

If you buy the condo while keeping your flat (when the MOP is up), do remember the second property has an ABSD of 12 per cent (or 15 per cent if you or your co-borrower is a Permanent Resident).

You do need to determine if the rental income you'll derive, plus the potential returns from the property, justify the additional payment.

(As an aside, if your home loan for the flat is still outstanding, your maximum financing for the condo would just be 55 per cent).