Study abroad is so undergrad, IMO!
The only employers who would see studying abroad as a detriment are big law firms.
Some people say that studying abroad is an "immature" thing. By the time you've decided to go to law school, and you finish your 1L year, you should be thinking more professionally than about "studying abroad." You should be making career contacts, and showing the world (or at least, an employer), what you can do in the legal profession. The school year is for studying, and the summers are for making connections that help to put you in the employed column upon graduation. This is just what I know from other upperclassmen and a very small sample of attorneys in my area. It doesn't mean that I agree with the response. However, if you are playing with this idea that much, I don't see why it is a problem.(You have gone back to a post from a week ago - you are obviously giving this some thought). If you want to do it, then do it. Life does not always fit into nice neat little boxes; I wouldn't worry much about how it "affects your future" if you know in your heart that it is something that you want to do.