When married my boyfriend this year, who entered the country ilegally, can he stay in the USA waiting for his papers or he has to wait in his country?

Process to Promote The Unity and Stability of Family Program per USCIS, if this applies to you two then it means he can possibly stay. Eligibility: Be present in the United States without admission or parole; Have been continuously present in the United States for at least 10 years as of June 17, 2024; and Have a legally valid marriage to a U.S. citizen as of June 17, 2024.   Reach out to an immigration attorney to review your case.