Is the sponsor still liable after the sponsored lpr marries a us citizen?

Yes, the sponsor remains liable for the obligations of the sponsored lawful permanent resident (LPR) even after they marry a U.S. citizen. The sponsor's financial support obligation, as outlined in the Affidavit of Support, continues until the LPR naturalizes, exits the U.S., or dies. Marrying a U.S. citizen does not automatically terminate the sponsor's responsibilities.