Reply from Uncleagony
If a property owner passes away in Singapore in the absence of a will the spouse will inherit 50% while any surviving child inherits the other 50%. So in your case if both parents pass away together you will inherit the property with your siblings if any and if none you will be the sole beneficary.
If the will is to be used in Singapore it would be preferable to be in English as there are certain requirements a will needs to be complied with after all a will normally costs $250.00.
A will does not require an official certificate and stamp duty has been abolished in Singapore.