Very difficult to immigrate as a parent. Not impossible, but now there is a lottery for it and even if you wait till 2018 there is no guarantee your app would get through. You are better off researching how to immigrate on your own, and/or she can sponsor you for a super visa which would allow you to stay as a visitor for years at a time.
If you have education in one of the NAFTA categories that is one possibility for working. Depends totally on your education history.