You will need to begin to take legal action. This may involve a lien, a lawsuit, or other process. Depending on the facts of your situation you may not need to find the person to pursue some legal recourse. If you decide to file a lawsuit, you will need notice on the person for a judgment to be entered. It would be best for you to speak with an attorney about the details.
This response is informational and not legal advice. Further, this response does not establish an attorney client relationship.
