We've been waiting for 18 months here. My husband had an interview on October 15, I had a phone call from the agent on November 7 to confirm some information and my husband got the pre arrival letter the next day. The agent (Mexico VO) said that if everything was ok (meaning the background check) my husband would be able to come to Canada in January. We are still waiting and the medicals expire on January 30. Now, I imagine he'll have to do the medical exam again (with children) or there might be a problem? We're so exhausted of the wait.