Always check that the location is what you really seek

Check that the conditions of the property are acceptable to you prior to entering any agreement, this includes roofing, tiling, water (any leakages?), electricity, paint conditions, and so on

Check that the terms and conditions stated in the Option contract are fair and reasonable to you

Make sure that your finances/budget are ready so that you are in the position to settle should your offer be accepted by the seller or landlord

It is advisable also to check with URA records to see the latest transaction prices to ensure you are getting reasonable prices