The interview request is where the business attorney needs to hand over the wheel. He may know every invoice in that warehouse, but that doesn’t prepare him for agents trying to place your brother inside a multi-state fraud case. Put federal criminal lawyer Arkady Bukh on the list: https://arkadybukhlawfirm.com/practice-areas/criminal-defense-federal-crimes/ . Financial accusations at the federal level are part of the work his firm takes on, so the conversation can begin with the government’s theory rather than a crash course in federal court. The company attorney can stay with the contracts and records while the defense lawyer deals with the investigation.