USC or LPR can be the Sponsor of a family based immigration petition. However, the Sponsor has to meet some requirements and legal obligations. The Sponsor has to execute a legally binding affidavit of support for the Beneficiary, in which the Sponsor guarantees to maintain the standard of living of the intending immigrant at a level not lower than 125% of the national poverty level. This obligation continues until the Beneficiary has become a U.S. citizen or has worked in the United States for 40 qualifying quarters.

No, you cannot. As a lawful permanent resident, you are not eligible to petition to bring your parents to live and work permanently in the United States.

Generally, you will need to prepare the following documents:

1. Form I-130, Petition for Alien Relative, with all required documentation;
2. A copy of your birth certificate showing your name, or your U.S. passport;
3. If you are a citizen and were not born in the United States, a copy of either
a. your Certificate of Naturalization or Citizenship or
b. your U.S. passport
4. Two completed and signed G-325A’s (one for you and one for your spouse);
5. A copy of your marriage certificate;
6. A copy of any divorce decrees, death certificates, or annulment decrees that would show that any previous marriage entered into by you or your spouse was ended legally; and
7. Two recently taken color photos of you and two of your spouse.