How long is the best time to return to China after American immigration?

On the second day after getting a green card in the United States, you can go back to China to visit relatives. The US Immigration Service stipulates that green card holders should not stay abroad for more than half a year. If they need to apply for a re-entry permit from the US Immigration Service for special reasons, and if they want to be naturalized in the United States, they must hold a green card for at least five years and live in the United States for at least six months in each of these five years. It takes three years to get married with an American citizen before applying for citizenship.

Your daughter can go home safely. I set up an immigration office in America.