I say no...go to the best school you got accepted to. If you can then transfer.
if you do not want to do biglaw or corporate law than I say take the money and tech. It will mean less debt, and a year sooner that you can begin "helping the poor". I mean I am an aggie and I am suggesting Tech, it is not often that that will happen. Good luck!
Teaching is a relatively easy job to move with, though, assuming she starts the search early enough before the school year starts. In addition, I don't think it looks all that great to take the LSAT 3 times, not to mention the fact that it'll be extremely difficult to get a score that will make your average high enough to be at the median for the schools you want to attend.