Expert Answer: In most cases, a person who entered the U.S. without inspection (illegally) cannot adjust their status through marriage to a U.S. citizen while remaining in the U.S. However, there may be options such as consular processing with a waiver (I-601A) if they qualify. If the person is eligible for certain protections, such as under the INA 245(i) or other humanitarian relief, adjustment may be possible. Consulting an immigration attorney is highly recommended to evaluate the best path forward.