Once you've decided to take your grievance about an attorney to the State Bar, you need to file an attorney complaint form. Find out how to resolve a problem without going to court, file a complaint against a lawyer, and how to get money back from an unethical attorney below.Instructions for Filing a Complaint Against a California Attorney. Fill out all spaces on the California Attorney Complaint Form completely. Visit the link to select the complaint form in the preferred language. Instructions for Filing a Complaint Against an Attorney Fill out all spaces on the complaint form completely. Chronically unhappy clients make State Bar complaints. Civil Filing accepts all new suits and subsequent filings for civil and some family related matters filed in the Bexar County District Courts. The State Bar of California receives complaints against attorneys, investigates those complaints, and disciplines attorneys. Customer: I was misrepresented in a case in California.