How to apply for American spouse immigration?

There is no need to find an immigration company and waste money. This procedure is exactly the same as doing it yourself: American citizens can fill in the I- 130 form at the US Citizenship and Immigration Office and apply for an immigrant visa for their foreign spouses. If American applicants have lived in China for more than half a year, they can choose to apply for an I- 130 immigrant visa at the nearest office in Beijing or Guangzhou. If the beneficiary has been married to an American applicant for less than two years before immigrating to the United States, his immigrant visa will be in a "conditional state" (CR 1 visa form). If the marriage lasts more than two years, their immigrant visa status will be classified as IR 1. As for you and your ex-husband's children. If the custody is yours before the new marriage, that's fine.