My attorneys secretary was arrested for stealing money from clients. $200,000.00

My divorce attorney is a fraud. His legal secretary stole money off of several clients estates inwhich the attroney knew of it. This woman has my sons & my ss numbers. This attorney steered me into taking less from my ex. as in 1 year less alimony and told me a year after I hired him that he was friends with my husbands first cousin. Now he is sending me a bill. What can be done? He should definitly be disbarred.