Perhaps to research avenues on statute of limitations on childhood abuse etc is more feasible. People just don't "get it" regarding PTSD, let me warn you. They will ask more questions than you have answers for, and even if your T tries to help them understand: they won't be able to. It's the nature of the beast. I think free phone consults with attorneys would be a place to begin, also. Don't share the event as that will be quite triggering, but ask a few pertinent queries.