There is no problem leaving and you can collect their PR cards and either mail them or have them sent by courier.
We are planning to "land" in August this year in Vancouver, stay for two weeks and then return to England so my son can complete his exams. We have friends and relatives in Canada to whom we could arrange for our permanent residency cards to be sent. However, I was told by Canadian Citizenship and Immigration when I phoned them that it is illiegal to send permanent residency cards on to an address outside of Canada and if our friends or relatives do this the cards will be seized and our friends/relatives will be arrested for fraud! Is this right? If so, how do others manage if they have to leave before their permanent residency cards arrive? Can we travel back to Canada without the cards and collect them from our friends/relatives when we return to Canada next June? Or will they have expired by then? And can we get back in to Canada without the cards? I think we are "visa exempt" as we are British Citizens with Uk passports but not sure if this means we can get back in to Canada 10 months after leaving, without the residency cards?
Hoping someone can advise on this...I wanted to do a new post but couldn't work out how to do it so replied to this one instead - sorry!