I believe that if you apply inland you can also send in an Open Work Permit (OWP) with the PR application.
There are draw backs to inland though, such as not having the right to appeal, and travelling outside of Canada is apparently a "no-no" . Make sure you are very well informed before hand and that you know what your options are and the consequences of them.
Make sure you ask if your unclear on anything, the people here are great for helping/sharing their experiences. Keep in mind too, that replies may take some time due to time differences and so on.
Take Care