I need to know how I can help get someone that was deported get a non immigrant visa

To obtain a nonimmigrant visa, your father-in-law would have to make the application for nonimmigrant visa with a request for advance permission to return to the US after deportation. The request would have to be agreed to by the American Consulate which would then send its recommendation to the Admissibility Review Office of DHS which would ultimately decide whether to go along with the request or not. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.