You file a lawsuit in the jurisdiction of the defendant. Do not even consider doing this yourself. You need to hire an attorney.
This answer is for informational purposes only and is not legal advice regarding your question and does not establish an attorney-client relationship.
You will not be able to get any specific information or advise on any website because an attorney will need to review the relevant documents and all of the information in detail, and then, possibly, do some investigation, before being able to tell you whether you have a viable lawsuit. If addition, if more than two years has elapsed, some types of lawsuits may be barred by applicable Statutes of Limitations.
I agree that you need to consult with a business litigation attorney to determine whether you have a case. I am concerned however, that you describe being part of a scheme with the public figure to avoid taxes and judgments. You may run up against a rule that the courts do not assist those who lose money in a fraudulent enterprise.
But there may be mitigating factors and some creative ways to make you whole. Find a savvy attorney and see what he or she thinks.
Nothing contained in this communication is intended to be, or shall be deemed as, legal advice, counsel, or services to on or behalf of any person or any entity. Usage of the Avvo website is not intended to and shall not create any obligation or relationship between the user and the Law Office of Herb Fox, including but not limited to, an attorney-client relationship. Further, the communications on this website between you and the Law Office of Herb Fox may not be privileged or confidential. Finally, your situation may be governed by deadlines that may or may not have already lapsed, and you may lose your rights if you do or did not act within those deadlines.
Consult with a business litigation attorney who may be able to file a complaint against the public figure on your behalf with claims for fraud, negligent misrepresentation, and perhaps breach of contract.
Many business litigation attorneys on this website offer free consultations.