https://media.ca11.uscourts.gov/opinions/pub/files/201914668.pdf
After Belevich immigrated from Russia, the sponsors cut off all financial support and accused him of sexually abusing Thomas’s six-year-old daughter. Belevich sued to enforce their obligations, and the sponsors raised the affirmative defenses of unclean hands, anticipatory breach, and equitable estoppel. The district court re- jected those defenses as a matter of law and awarded damages to Belevich.
[…]
We recognize that our decision may impose a heavy burden on the sponsors, especially considering the crimes that Belevich al- legedly committed against them. Nonetheless, the law compels this result. The sponsors’ obligations will terminate if Belevich’s prosecution results in a conviction and he is removed from the United States. See, e.g., 8 U.S.C. § 1227(a)(2)(E) (domestic violence is a deportable offense). In the meantime, we may not create de- fenses that the statute, regulation, and affidavit foreclose.