Some questions about CR-1

[ShinJay08 0]

Hello, thanks for clicking my post,

first, I am waiting for my citizenship ceremony, it's next Saturday, so I am a U.S. citizen soon.

Then, my fiance is with me in the U.S., she is Korean, overstayed for 130 days. (ESTA visa waiver entry)

She's trying to leave the U.S. before 180 days of overstay at least. She is going to Korea then, apply for CR-1 there,

my first question is, If we get married now, in the U.S., my fiance can apply for CR-1 in Korea without me, right?

Then, other questions are about the documents.

1. I am a student, I had not much income, had no tax return. If a 3rd person becomes our sponsor, how does it work?

2. We don't have any co-ownership of property or any evidence that we lived together (we have lived about 8 months together in the U.S.)

is there any kind of evidence we can make before she leaves this country? or affidavits from my friend will work?

Thank you for your help!