Based on my observations of you in this comment thread only, I would say don’t go to law school. Your analytical abilities and/or educational background seem to prevent you from figuring out the answer to your question, or what information others might need to answer your question. This sort of reasoning would be basic to doing well in the law school curriculum. I don’t mean to be harsh at all, I’m just trying to give you a realistic answer.
Moreover, the starting salary you mention doesn’t justify what law school will cost. Now, even if you’re not paying the tuition, and your Shver is offering to pay the tuition, it is still a lot of money that could be better spent elsewhere- perhaps investing in a business, or a property or some other professional training program. Also, in a firm of 10-20, it is possible that other lawyers might be resentful of your shver bringing in his son in law, especially if you just scrape by in law school. And finally, what if you don’t like working with your shver? Where will you be then?
I’m just trying to be constructive- there are lots of great professions out there. Right now, law is not one of them, even under the circumstances you describe.