Documents Required to bring to the interview

[Andrew.C 0]

Good evening, Sir/Madam:

 

I have some question about my family immigration case.

 

For our case, it is an family-based preference Immigration visa. My mom's sister (my aunt) has been submitting application the USCIS since 2006 and they accept it in 2009. During this time in 2019, we received notification from the NVC that they are currently working on our case and asking us to submit the required documents and we did. Now, we are waiting for the NVC to schedule our interview at the US embassy based in Phnom Penh, Cambodia. At this stage, I'm curious about what is the time frame that the NVC takes to schedule an interview at Consulate office in my home country? Can it take up to years? And what documents are required to be original and to be brought to the interview? I have read a lot of articles on the travel.state.gov website, but it seems to create me more confusion. Plus, our case is kind of special. We have a family of five: my parents, my two siblings and me. But I'm currently studying abroad in Seattle, WA state of United States. Therefore, I cannot attend the interview at the US embassy in Phnom Penh at all. In this case, will it affect the overall case's processing? And If in a situation like this, do my parents required to bring my original documents such as birth certificate, passport...etc. to the interview? Please help me... It will be greatly appreciated!