I applied for the immigration to Canada in 2008 and I did the landing in 2011 and stayed for one week in April 2011 with my wife and four kids. I also worked in Canada, after I applied for immigration, from January 19, 2009 to November 30, 2009. This is the only periods during which I stayed in Canada. Four of us, their PR cards will expire in June 16, 2016. One daughter her PR card will expire in January 2017 and another daughter her card will expire in July 2017. I want to renew my PR card and go back to Canada and stay there but currently I am outside Canada. Is there any advise from you guys?