I'm in USDA/FSIS - but I'm not an attorney, just a "litigator." You don't have to be an attorney for this work with this group - we just represent the Agency in employee appeals to MSPB, EEOC, or arbitration hearings (union).

Not sure about other branches, but they seem to be in the same grade system as low as 9, high as GS-15. I don't know a thing about state.