This is a dangerous assumption.

But alas, they want to play it safe and think your wild ideas are dangerous.

you need to focus on fewer owners but hit them multiple times.  

More fees to the government, more profits to the title companies.Most of the folks I know only do three or less fix-and-flips a year, fewer if they're serious rehabs due to time frames and resource constraints.I think a lot of states are finding legislative ways to "get on the REI gravy train", driven by cries of "foul" and "fraud".

Lenders qualify a residential property with four or fewer units via their single family underwriting guide.

HOWEVER there are also substantially fewer players (e.g. rehab buyers).

The 15% will affect, in my opinion, way fewer than 1% of buyers in the Greater Toronto Area.

While it is still possible to make money in these markets in the short run, over the long haul it has been my experience that you make far more profit with far fewer headaches in markets with greater demand and more limited supply relative to that demand (which is why they are expensive in the first place).

As I've been on the site I now know there are far fewer experienced real estate professionals on here than new people.

@Alex SImon , from a never-worked-in-your-position standpoint, I can see why people ask when you're going to stop working there, because it seems like a dangerous position.