DCFS can sustain allegations or close the file as "unfounded". They don't typically "disprove" allegations or establish innocence. Due to a higher standard of proof facing the government in juvenile dependency court , cases may be unfounded by DCFS then founded in family court. You should focus on defending the action , certainly request sanctions and attorney fees. Sanctions are by noticed motion.
The answers on this discussion board are general in nature and NOT intended as legal advice. Responding to questions does not constitute an attorney-client relationship. Always see a lawyer about your individual situation.