Make a simple rule....if you sell your unit that you are not  intending to live in, not only do you pay the appropriate tax, but also assisgned a financial penalty depending on the time frame.  The quicker the flip the more severe the fine.  That would put these scumsuckers in place.  Why do legitimate people who want to live in a building have to pay inflated prices from these useless POS.  Besides these vermin have been know to grease the appropriate people to get in line first to buy.  In addition why stop in Toronto. Hamilton and Burlington is rife with this practice with all the condos going up. One friend of mine has bragged he had bagged three such deals over the past few years.   Our governments on all levels are asleep at the switch.