Working with a political party

I am curious how others may have traversed something like this. In Canada, we're going to have a federal election fairly soon, and I want to see if I can do some video work for some political candidates. Generally speaking I wish to stay completely non-partisan and not align myself with any side of the aisle. Can this be done though/has anyone else tried to walk this line? I know if I were a huge video company, no one would look twice at me being hired out to work on the left and right, but I'm a one-person-show.

For those of you that have worked on campaigns. Have you had any issues with this or have the parties given you a tough time at all switching back and forth?