its true if you hold a property after one year you recieve 50% discount on your capital gains the year commences from contract date and not settlement therefore longer term settlements are preferable for this purpose .
If you obtain a 6 month contract to purchase say jan 1st with six month settlement terms settle june 30th that year you are already 6 months into your capital gains 50 % discount therefore you can dispose of your property after jan 1st the following year to recieve your discount holding the property only 6 months .
Naturally if you borrowing 90%against your property you pay no tax on the equity you draw out .