Canadian Employer sponsored CDL training

Each province has they're own training and licensing systems and requirements, your best bet would be to call Quebec based schools and companies to see if they offer anything or if they could direct you. Some companies offer rebates for tuition to private schools and there may be a Quebec provincially funded plan to cover costs. Actually I just read on another forum Hyndman which is owned by Celadon might have company training there.

 

If your brother can handle 6 months of training before getting his Class1 then tell him to check out C.F,T,R. It's basically a vocational diploma program paid for by the Quebec government and only costs about $160. If he can only speak English he can only do the program in St Jerome but there are a few options if he can do it in French. There's also a heavy equipment school in St Jean sur Richelieu but I can't remember the name. Probably French only.

Outside of that most of the driving schools around Montreal offer a very basic course that is essentially driving only for 20 hours. Get the permit before hand and they'll teach you to pass the driving test and that's about it. Better than nothing I guess.