This is the third time my mother is visiting us, last 2 times she went back within 6 months of stay. This time we would like to extend her stay. She is planing to visit her daughter in USA and planing to spent at least a month time with her. She landed on March 2018 this time. So whats our best bet ? Let her go and visit her daughter in USA and while entering back, do Canadian officials allow her to say 6 more months or its better to extend her visitor's visa within Canada. If that's the most sensible option, whats the procedure for the same , Kindly advice ?