I was issued PR in 2008 after I married my canadian citizen wife in 2006. Unfortunately had to move back to the US in late 2009 and other then a few visits I have never been back, my wife has been living with me the majority of that time in the US, we are moving back to Canada very soon and from what I understand I still have been meeting the residency requirement since we've been together. Will it be difficult to renew the card once I'm back? Also what is the best way to cross the border since my card has been expired for 7 years, still provide it? I was reading on the CIC website I can provide my SIN card as proof of my PR status if my card is expired? Just dont want to be hassled at the border If possible.. Thanks