Thanks, seems she needs to wait at least 10 years to be eligible for OAS, what about seniors financial assistance programs that each province offers, like dental and optical assistance? I know she’s eligible but again I don’t want it to be an issue for me.Maybe too soon but OAS is one of the things you can look into but has conditions of course and would not be an issue for you:
https://www.canada.ca/en/immigration-refugees-citizenship/services/new-immigrants/new-life-canada/plan-finances/senior-benefits.html