The question of applying for my husband to immigrate to the United States,,, ask?

you can start applying now, there is no need to wait for another two years. The category you are applying for now is F2A, green card for spouse. The application time is about 3-4 years. Because you can take the citizenship test in two years, after you pass the citizenship test, you can directly apply for identity change, from F2A to IR1. It's very fast.

The notaries that your husband must handle are: birth notarization and marriage notarization. If your income is high, you can come back once or twice a year. If it is not high, you can come back once every 1-2 years. The time to come back varies from time to time, and a month's stay is good enough. . . Remember, contact materials must be kept, such as telephone bills, emails, etc. . . .