I had applied my dad for 1-130, and got approved. But my dad changed his mind, so I didn't continue. BTW, he currently is in Beijing. Now I am trying to apply B2 for him since my mom got her green card last year and still staying with me. My question is beside DS-160, what else do I need to prepare?
Do I need invitation letter, financial support?
-Yes, had better provide it.
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