Some schools will turn any scholarships they gave you into loans if you transfer or don't finish there. Other than that, you should realize that you are by no means guaranteed a chance at transferring, and that you will have to be near the top of your class to do so.
Keeping in mind this - you are never guaranteed to be able to transfer. It is important to chose a school that you could see yourself happy at for the three years of law school. If you do well, and are able to transfer then I don't think anybody will have any problems with it, but I feel you may hurt yourself if you go in with the intention of being able to transfer. The bigger the difference in "status" of the school you're trying to transfer into, the higher up in the rankings of your class you'll need to be - and it's too early to make an assumption as to where you'll be in the class rankings.
It's an incredibly STUPID idea.Everyone walks into their first day of class thinking they're going to rock first semester, come out at the top of the curve. Fact of life is that no matter how much work you put in, your classmates will probably still beat you out.If you attend a school, and don't see yourself being happy there for the entire 3 years, and woudl be really unhappy with the career opportunities you might have coming out of that school, then DON'T GO. The odds of getting a high enough GPA to transfer up are very much against you.