From Wiki

• Non-residents of Canada are allowed to buy real estate (land, buildings, etc.) in Canada.

• However, in some provinces, a non-resident of Canada is restricted in the amount of land he/she can buy, e.g., 20 acres.

• This varies from province to province so, if you're a non-resident at the time that you purchase property, you need to check the relevant province's regulations.

• There are other articles about real estate in the Housing-Canada section of the BE Wiki.