Helllo, you guys asked about Montreal,
I will say what I know...
Some process for family with kids born in Canada, I know at least 2 cases like this and the process was really really fast!
Like 6 months total!!! for begging to end!!
I have one friend she applied as a single, so she applied in Last November and was called for the Test in July.
But she could not do for personal reasons...also what I heard people are waiting at least for 2 months to the oath after the test.
So in general process are taking around 1 year if there is no RQ!
What I think is good...not long ago all the people I know waited around 20 months for the full process ( without RQ)
Hope that could help!
I am from Montreal as well and hope this process get faster every day!