I agree RI that condo rentals count as a rental, however they can quickly be taken off the market and therefore may not be as stable as a purpose built rental building.
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There have been very few large scale purpose built rentals over the past few decades, however within the past year several condominium projects have been converted to rental properties.  My understanding is that they will not have condo title at all so change of use is highly unlikely (particularly in Toronto).
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The op seems to be completely unaware of this development, but it can easily be verified.