I am returning to Canada with expired PR card and my parents are with me too. My father had got major accident and could not return few years ago. He finished his treatment in 2014 and then his father is ill and just passed away a month ago. We just sold our house and had purchased apartment in Canada this year, where my sister lives in (she has returned to Canada for college in 2013 and she has a valid PR card now). I am checking if any new advise on the chance to be successful. We just arrived in the US with B1/B2 visa and plan to enter through US border.