You might want to dewinterize, that's really just going to be a judgment call though. It would probably be a good idea to get the heat turned on, just so that nothing freezes in the cold weather that should stay unfrozen. As far as security goes. I think it's extremely important to get security put in. If you aren't going to be there very often, you're going to want to be as safe as possible. The last thing you would want is to have the place broken into while you can't do anything about it. Getting a camera, if nothing else, will be a huge thing that you should definitely do.