No one seems to have addressed the other side of the original poster's less-than-stellar early profile -- the criminal record. Even if the school does not have a problem with it, the state bar might object once you've graduated. All the applications I filled out had a "character and fitness" section, and most of them had a disclaimer to the effect of "Before you start law school, you should check with the rules of the bar assc. of the state in which you want to practice if you have a less-than-squeeky-clean record." I know most places won't give a hoot about traffic violations, but the DUI's and dope convictions might be problematic. Does anyone have any real insight on this?
(By the way, lots of people score in the 170's on the practice test and then don't do that well on the real thing. I would advise lots of timed practice to make sure).