If you have been granted conditional resident status, you must first become a permanent resident. In the next step you can apply for citizenship once you lived for three years continuously in marrital union with a US citizen. Otherwise you must wait 5 years.
If your second marriage is in good faith, then you have to be sponsored again, and will be able to apply for US citizenship after 3 years of getting your green card.
Contact immigration attorney Gintare Grigaite, Esq. at 201-471-7989, located in New York and New Jersey. Contact immigration attorney Gintare Grigaite, Esq. for a free consultation about new Immigration Reform policies. Answers on AVVO do not constitute legal advice and do not form attorney-client relationship. Always consult an attorney for a legal advice.