If you have skills in finance and IT, why aren't you just planning on using them? You could get pretty far in a career in three years. And you didn't answer the question on why you want to be a lawyer.
I need work that is challenging, requires intellectual curiosity, and critical thinking. Sometimes I watch C-SPAN and analyze arguments. What led to my interest in securities law (among other things) was the Goldman Sachs hearings, the Rajaratnam insider trading, WaMu Bankruptcy case, and Dodd-Frank legislation. I've taken classes in college such as Philosophy, Analyzing Evidence, and a basic law class. It feels natural to me.
As far as other careers - IT is like a trade job; after 1 year working at a part time IT desk I felt like I was at the same level as my superiors. Finance is more difficult for now at least with many layoffs and uncertainty on Wall Street.
Well, to help you pick out a school, you can look at some law school admissions calculators to see where you have a shot at getting in. From there, you can research the area, what major and minor journals they have so you can try and get on those. As far as applying to a law school with the intention of transferring: never, ever do this. Every law student applies to school with what they consider to be "correct expectations" but few live up to them. Law school is far more competitive than you know. If you plan to transfer out, you pretty much have to be in the top 10% and, as we all know, there is no way to cram 100% of students into the top 10%. So, it's very important to manage your expectations accordingly. As far as whether it's a common route: very few manage it; far fewer than those who attempt it.
That's helpful to know, thank you.