The AG's office isn't going to be able to do anything about your employment situation, though the actions of the ED and BOD may be evidence of a cover-up for the purpose of its investigation.
Have you actually received notice that your employment has been terminated? Suspended? Do you have a written employment contract? You need to immediately seek the advice of an experienced employment law attorney, in my opinion. Trying to file a lawsuit on your own at this time would not be a good strategic move.
Not to be rude, but if you don't even know where to file a lawsuit, there is no way you are going to be able to prosecute one successfully on your own. It sounds like you could have a good case and if you do, you don't want to blow it.