What are the preparation materials for the interview of American relatives and immigrants?

1, I don't know this interview letter yet. I estimate it will take one to two months.

2. If you receive any notice during this period, you should prepare all kinds of materials according to the requirements of the notice, such as birth notarization and notarization of no criminal record. But I believe your family will help you.

3. I am 2 1 year-old, and I just passed the immigration application. It is estimated that it is ok to be under 22, and you are only 18 years old. Please rest assured. There is absolutely no need to worry.

4. Good luck.