I believe a non resident of Canada tax for those jot living in the country should pay starting at a 2.5% tax with increments on real estate.

First 5 years increase .5% with ample notice for investors,both externally and internally as people rely on real estate investments for retirement fundings, tfsa, etc.

After 5, increase of 1% up at year to 15%.

Enact ability for agency to fluctuate this percent by 2.5% up or down in order to help tame cooling or hearing markets. With ability to further with House vote