I am now holding a closed work permit which is valid until 09/21/2012. Recently, I got an offer from another employer and they are now applying an LMO for me. I expect the LMO will be issued in 3 weeks. In order to get a new work permit faster, I am thinking about going to the border to get a new work permit. I am not from visa-exempt country but I have a multi-entry visa based on my current work permit which is also valid until 09/21/2012. Can I leave Canada at the border and return right away and apply for a new work permit with my new LMO? If anybody can help, I will be greatly appreciated.