I hope you have a rear view camera...otherwise you won't know the CRV is back there.
Always have another person double check your tow bar hookup, ignition, parking brake, gear selection, and the pulling of the fuse (or switch).
You can eliminate the fuse pulling if you run a 12v wire from the mh to the CRV's battery to keep it charged. In our case, I installed a switch (with an in-line fuse of the same amperage) in place of the fuse, so I simply just have to push a button.
Another must have, is a good supplementary braking system. Not all states require them specifically, but for for safety's sake, get one. It's a known fact that you can stop faster if your toad is equipped with one than without.
Ron