I-944 or I-864 for the derivative applicant

[kelumdi]

Hello Friends,

I have approved I-140 and am planning to file I-485 for me and my wife. I know that I have to file I-944 for me as I am an Employment-Based Alien Worker.

Could you please tell me whether I must file I-944, I-864, both, or non of them for my wife?

Thanks a lot in advance.

Kel