Hopefully after a week or so Canberra will ask to move out, though, it could take a really long time too :C. I really wanted Tangy in my town and when I got her, she moved into a horrible spot in my town and I had to get her to move out. It took 90+ game days of TTing though and I had 8 permanent villagers in my town placed at the time, so it was really tedious @_@. On the other hand, I've had villagers move out as early as a week after they moved in. Hopefully you have better luck in getting unwanted villagers in bad locations to move out quickly!