If you want to practice domestically if you get into law school, and still practice in a manner that allows you to use the Japanese language skills and background you gained as a JET, expanding your personal network is critical. Below are all of the Japan Societies / Japan-America Societies I could find within the fifty U.S. states. I do not contend that this list is in any way exhaustive, but it does consist of the Societies of which I could find websites or at least address information.
Naturally, your JETAA branches will serve as a valuable support and professional network moving forward, but you will have a better bet finding Japanese professionals to build contacts with in the Japan Societies indicated below.
(I was only able to find the basic information for the Japan America Society of Alaska)
(I was unable to find an applicable Japan Society for Baltimore. I did however find this Baltimore Area Japanese Meetup which may at least provide language reinforcement)
Heart of America Japan-America Society (Kansas and Missouri)
(I couldn’t find a website for it, but there is at least a map and phone number for the Japan-America Society of New Hampshire)
(The best I could find for anything Wisconsin-based is some address for the Japan America Society of Wisconsin)