回複：Urgent: a question regarding immigration petition for my sist

I filed for my sister 10 years ago via I-130. Last year, I-130 was approved. We just recieved a letter from NVC to request the payment of $400/person visa application fee and file the affidavit of support.

Can you someone tell me how long it the wait after we make the payment till the interview in Guangzhou US embassy?
-Depends on the prority date (PD) is current or not. If the PD is current by this time, your sister and her family should be interview in 6 months to one year.

One other question, my sister and her hu*****and divorced two years ago. Will this affect the petition for her and her daughter?
-No.

If they decide to re-marry, would the previous divorce affect the petition for my brother-in-law.
-No. But she has to get married before her gets the immigration visa so that her hu*****and can join her application to get the immigration visa together.

Right now, all three of them are on file at NVC and the payment request are all all three of them.
-If you do not want to pay for the three, you can only need to pay for two (exclude her ex-hu*****and) and explian it in a letter.