JPAS is the Joint Personnel Adjudication System. It is not a security clearance but is a reporting mechanism for collateral security clearances which is part of the National Industrial Security Program.
When you say you have a problem with your JPAS, I suspect you are referring a flag on your JPAS file which indicates that is either a pending issue or an incident report has been filed against you. Many of our clients have security clearance adjudication issues which we address. Generally, if you have appeal rights to defend against derogatory information which surfaces, you usually will receive a Statement of Reason for the proposed denial or revocation action. If you are a contractor with a DOD collateral security clearance, DOD Directive 5220.6 (newest version which incorporates SEAD 4) is the applicable regulation.
Yes. Legal Counsel with experience in security clearance investigations, adjudications, suspensions, and revocations can be helpful. Of course, the extent to which legal counsel with security and suitability investigations can assist depends on the specific facts of your case. To the extent your clearance is essential to your military, government civilian, and/or contracting career, it is likely worth a consultation or two to determine what courses of action may be helpful to you.