What happens to mortgages, banking if Alberta were to separate?

https://i.cbc.ca/ais/0f7cbbe7-7876-4f11-94c0-c40eae0f7cbb,1781120096104/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C0%2C4032%2C2268%29%3BResize%3D%28620%29" title="An aerial photo of Lewis Estates in Edmonton." width="620" />

The group pushing for separation says mortgages would carry over, and Canada's big banks would seek to operate in an independent Alberta.

But analysts say there are a lot of unknowns, and the process would likely be very complicated.