My boyfriend was in the u.s with me but we went to Mexico to tijuana and they canceled his visa and I would want to fix his papers what are the requir

You would likely have to marry him in Mexico and petition for his permanent residence on form I-130 petition for alien relative with U.S.C.I.S. If your future husband is not inadmissible to this country, he would interview for the green card in Mexico and come here as an immigrant. If no problems, the processing would probably be about a year. If he has an order of removal or finding of visa fraud or misrepresentation or other ground of inadmissibility, he would also require an approved waiver(s) prior to being allowed to enter the US. 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.