Well, I'm not a lawyer, but I've had to research different types of lawyers for a project. Generally, lawyers go to school for 4-6 years. Obviously, it helps if you go to some ivy league college but that's not possible for everyone.
Not really sure about what courses, but just know it is probably more work than you could imagine. Corporate law is basically a ton of paperwork and research (like any lawyer deals with). You rarely end up going to court, as most cases settle. So if you're not really interested in the court room scene, this might be for you. But who knows, you might end up having to go to court eventually.
As a first year associate, you could make around 60k-80k a year? (Not counting bonuses!) Maybe that's outdated, I'm not completely sure. But if you make partner 3-5 years down the line, you could easily double that to the 6 figure range depending on if you are in large firm or are an in-house lawyer.
Is it worth the effort? I have no idea since I'm not a lawyer, so I guess you'll have to think about that one. Being a lawyer is very stressful from what I've heard. I highly suggest reading Double Billing by Cameron Stracher. It's about an associate at a large corporate firm. Stracher uses a lot of his real life experiences as a lawyer in it as well. It's kinda slow at times but I thought the ending was alright.
I hope some of this helped!
It is a federal offense to alter an odometer. You should contact the district attorney's office.