Of course research was done. Was the market this crazy in 2018 or 2019, it wasnt i was here back then. After lumber prices stabilized non-condo home prices have continued to grow at an alarming rate. Precon townhomes in Kitchner went up by 250k within a month. I also don't believe interest rates will cool down prices to rates during end of 2019 . There is buyer fatigue although but that doesn't mean sellers wont sell 80/100k above asking for <5yr resale property. As an informed buyer one always checks for affordability at 3% or 3.5% and not the current rates.Simple answe is No. Not all immigrants can buy a house in GTA. And No, not all Canadians (even ones born here) can afford to buy a house in GTA.
Didn't you research on where you will immigrate to before you apply? The housing market has been hot for many years. May be the high interest rate will cool it down. It's hard to tell.