State Bar Association would be the 1st step to file a complaint against a lawyer.
specially this Brian Klein of Baker Marquart
probably integral to the fraud in other ways

what a piece of shit
If you have something on lawyers for professional misconduct send the details and lodge a formal complaint to their governing body. Probably has to be someone on the same country and if in the same state all the better. I do not know if it can be done anonymously though.