Q

The funny thing is that the processing time for a visitor record on the IRCC website is about four months. One can apply for an extension of six months at a time, so I guess I'll be stuck in limbo after submitting the visitor record applicationYes, while not guaranteed, you could always try for an extension. Another thing you could try is to get them a US visitor visa. Have them visit US. That way they could re enter Canada and get another 6 months (provided the visa is still valid). Another option is Mexico.