Have you considered filing in small claims court? You might have to give up
part of your claim, if it exceeds the small claims limit, but the rules are
more relaxed. It might even be possible that the LLC would need to hire a
lawyer if the manager isn't allowed to represent the company in court.
It's too much money to give up to take it to Small Claims instead of
municipal court. The LLC has their lawyers and that is who shot down
my first complaint.