Hi, I have a question:

Lets say we  actually live in a property as your principal residence from the first date of possession . Then due to work change, you go to another city/state and buy another property and live in that one. During this time, you leave the first property and rent it for up to 6 years. Is this property free of CGT when you sell it.? 
I have read that you can only have one principal residence (for CGT purposes) at a time. How does this affect when you are living on the other owned property.

Thanks