Invite American immigrants to Guangzhou for an interview.

If your father is from China, the visa officer will talk to you in standard Mandarin during the interview, mainly asking your mother, just letting her relax and answer questions;

Ask your mother to bring evidence of your father's relationship with you, such as photos of your family, letters, telephone bills, money orders, tickets for your father to visit you in China, etc. These are not necessary, but as long as you can prove that you are a family, try to bring them to the interview.

In addition, there are financial guarantee materials, such as your father's financial guarantee form, W2 salary form, 1040 tax bill. If you have proof of housing and car, stocks and bonds and other assets, you can carry them with you to prove that your father has the ability to support his family, and you will not become a burden to the government after you go to the United States.