By now everyone is aware of the strains that short-term rentals like Air BnB can place on a city's housing market. But recently Montreal has seen that problem compounded to devastating effect. A deadly fire earlier this year brought national attention to the way traditional rental units are being carved up and turned into multiple short-term rentals, and a real estate manoeuvre known as 'the Montreal shuffle' makes these moves possible at scale.So what's happening exactly and how does it work? What is the proliferation of short-term rentals doing to a city once known for as one of Canada's best places to rent? What is the government doing to attempt to regulate the problem, and why isn't it working?GUEST: Ethan Cox, senior editor and co-founder of The Ricochet (read The Ricochet's extensive work on short-term rentals in Montreal here.)