My fiance got a green card. How do my children and I apply for immigration?

Get a marriage certificate first, and then he will go back to the United States to help you with your relative immigration. F2A project, if it goes well, you can wait four or five years, and then you can go to America.

Unmarried notarization is done in China, and the green card is only permanent residence, not nationality. He is still from China, so he works in China. After receiving the marriage certificate, do a relative notarization. (notarization of husband-wife relationship)