I just tried to compute manually my residence for the past 5 years - that is, from 2013-1017, and if I am correct (though I have not yet tried to use the Residence Calculator), and I got the total of 743 days if I I submit the application for PR renewal by Aug. 30, assuming I am back in Canada by that time.
But as someone pointed out, I can't enter Canada on my expired PR status, how else can I get there. What if I tell the officer at the border that I want to visit my disabled son who was just been told the FINAL findings of his neurologists on the many tests, MRIs, exams he has been undergoing these past 3 years is that he has that rare disease called MULTIPLE SYSTEM ATROPHY - A Degenerative neuro disorder. I want to help him fill up forms for filing pension disability benefits. He has no one else living with him, his wife left him when he was starting to have the symptoms.
I need to spend quality time with him (he's 49 years old, living on social assistance and some part time job which is not much). And be truthful in declaring that my PR card expired last Aug. 21. I am thinking though that I might give up this status, if it's not advisable to renew it while having a US green card.
I'm confused and will really appreciate any advise.