Reply

老师好，

我先为父亲（国内）申请的绿卡，然后再为母亲（在美国）申请的绿卡，所以在父亲的I864 Part 3 Information About the Immigrants You are Sponsoring，我没填母亲的信息。

-You did the right thing.

现在父亲要去广州签证了，要带签名的I-864，母亲绿卡已经打了指纹，还没面试。

我需要在父亲的I864 part 3上填上母亲的信息吗？

-No, it is irrelevant to your mother. But you need to put "1" in Item 6 at Part 5, i.e. add your mother into your household size.