Ok, so its my turn to do interview report.
I went to the office about 20 min before the appointment time.
I waited for about 30-40 min before my name was called.
My lawyer and I got into the office with IO.
IO checked my ID and EAD card, and he checked documents that I already submitted with I-485.
Then he asked me few questions on I-485 such as how I originally entered US and criminal history etc...
and the interview was over. its less than 10 min.
no additional document was requested.
IO told me that I should wait up to 30 days for my GC.
very simple and smooth interview.
Although I was not asked to submit any docs during my interview, it is just my case and you should expect IO could ask additional documents ready for submission or re-submission.
For example, I submit only diploma from grad school, but I think it is good idea to have high school diploma ready. Also if you are under J-1 visa like me, it is better to request advisory opinion in case IO needs to confirm you are not subjected for 2-yr residency requirement.
One more advice from me is about lawyer. I decided to hire lawyer because I wanted to have someone who can check each process as professional point of view. But, as many suggested here in this thread, it is not necessary for many of you unless you have very complicated situation.
But if you decided to hire one, I strongly suggest you to do some research and interview lawyer before sign the contract with them.
DV program only create 50'000 cases every year, and most of them are not AOS. Also most of people who does AOS does not hire lawyer, which make it difficult to find a lawyer who has experiences in DV AOS cases.
I did this research and found one who has experience and I am satisfied with her service. So again not necessary, but if you decided to hire immigration lawyer, do some research and hire the right one.
I will let you know if I receive welcome letter or card, and GOOD LUCK for those who are still in process!!!!!