I''m interested in majoring in law, and I was wondering what happens if you don''t pass the Lsat for the second time?

Even though I haven't taken the LSAT for 30 years (there was no math on it when I took it) I can tell you that you're asking the wrong people.  The LSAT has nothing to do with admission to the bar - it has to do with admission to law school.  You should be asking the admissions department of a law school.  As far as math involvement in the practice of law, I think you will find that there is some math involved in every field of endeavor, including the law.  Even in the area of criminal law, there would probably be some math involved (in figuring out sentencing guidelines, for example), but probably  not much.  You don't have to know calculus to practice law, but it certainly helps to be comfortable with arithmetic and algebra.