So I just got my open work permit from CIC. My wife is sponsoring me inland here in Canada. The process took a very long time but it was well worth the wait. But I just have two questions 1. Now that I have received my open work permit am I able to leave Canada on vacation and come back or do I have to wait till I get my actual permanent residence card? 2. Do I have to go to service canada and get another sin number? I had a sin number from a work permit that I had or does the sin numbers transfer? Please advise. Thank You