US Immigration from Dominican Republic

We are doing the K1 visa. We have received the NOA2 and NVC has processed our petition. We have filled out the DS-160 and paid the visa fee. Now we just have to schedule the interview and fill out the affidavit. Does anyone know which form I should fill out I-864 or the I-134 and then after we fill it out do we send it to a specific address or does it have to be submitted somewhere specific online or does he just take it to the interview? I am confused on what to do with it

Hello. Forgive me in advance if I posted this question in the wrong forum as I wasn't sure where to post.

My wife has a CR-1 visa, resident ID card, a SSN card, a state issued ID and has been working since February. We are traveling for the first time to her home country (Dominican Republic) since her arrival in the USA in December 2018. Our stay will be one week to visit family. What documents does she need for a smooth entry back into the USA next week? I also understand that she and I can go through the same line? (I'm a US citizen). Thanks for any tips and advice. We are also celebrating our 2 year wedding anniversary in few days.

Good night friends!

My Status Adjustment Package (I-765 / I-485) and USCIS received it on April 22, 2019 ...

May 24, 2019, I took the Footprints and I have NEVER heard about my case again.

Someone from the month of April here who has not responded from USCIS?
Too much time has taken

Hi all,

I filed my petition on 9/17/19. On 9/30/19 my fianc informed me that his son's mother told him that she received a call from someone she doesn't know asking her if she was married to my fianc . Would anyone know if this could be immigration calling her? Only her address was listed on petition as that is where his son resides. Does anyone know if this is something immigration would do? If so do you think they would be investigating that deep in just 2 weeks?

Thanks for any help!

F2B- my case was approved on July 25. The letter says that they will send me the interview date. I read that it only takes 69 days to schedule an interview. It s passed 60 days.

Does anyone know if the NVC started sending out interviews for cases F2B?

i see that people that were approved in June already have interviews for this month.

is it possible that cases approved in July for Dominican Republic are getting interview dates this month?