How do i apply for my husband citizenship

Your facts do not disclose many of the items that would be necessary to give good advice. I assume that your husband has left the country and you want him back. However, you have not disclosed your present immigration status or that of his parents, and that would be relevant in seeing whether he could have a chance of returning if he is under a 10 year bar for unlawful presence in the US for a year or more. I suggest that you make an appointment with an immigration lawyer who can go over all your available options taking into account all of the facts.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.