We help you to become a U.S. citizen. After the period of time required by immigration law has passed as a Legal Permanent Resident, (five years must passed after you acquired legal Permanent Resident status, if it was through marriage to an U.S. citizen, it is three years), you can apply for naturalization.
If you have a U.S. parents, is possible for you to acquires the U.S. citizenship from one of your US citizen parents.