Bro hi, im sharing these things from my own experience, the outland spousal sponsorship application goes to the IRCC first and after Initial assessments IRCC forwards the application the the VISA office for further processing it can take from 9 to 16 months it more, but the dependents of refugees case has to be forwarded by the applicant himself once the principle applicant who is in canada gets PR, or AIP, so if your father is PR now you have to send all your docs to the specified VO IN THE LETTER, there are list of docs which is mentioned in the letter that has to be sent to the VO, such as PCC, birth certificate, marriage certificate and etc, so youve already wasted a couple of months i suggest get on with it and send the application ASAP.!!
goodluck