leave husband for registered sexual predator child under 12

That would not be a ground to make you lose your green card. Losing it would not be because you are associated with a person of ill repute, but whether you have done something yourself. For example, if you gained your green card through fraudulent marriage, leaving your husband for another person could trigger immigration consequences if you were reported to ICE for the fraudulent marriage. Otherwise it is deeds and not associations which count with DHS in deciding to take actions against someone’s green card. 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.