I do not have an answer for you but I wanted to congratulate you on how fast your application is being processed. I wish my file had stayed at the Mississauga office. Does your mom have a super-visa?
Processing time dropped to 20 months today. May 19th will be 17 months since I submitted my application. Hopefully, I'll see some action from the Montreal VO soon.
I thoughts the GoC was working on improving processing? Unless it's for all other IRCC programs. Processing time is increasing steadily. It's now at 27 months.
Glad to hear that you received communication from the Montreal visa office yesterday. I'm also with MVO but have received no communication since my file was transferred there in July 2023.