As a former lawyer and graduate from a top American university (University of Chicago), I'm confident that I can't help you with any type of English you wish to master. However, I am patient enough to work with even beginner students!
I recently passed the JLPT N2, but I still work on my Japanese every day. Therefore I know what learning a language is like an can help you reach a high level.
Looking forward to working with you!!!
Evan