I've got a lot of help from this website. After my I -140 (NIW) has been approved, I want to write some about my case.
I-140
RD 6/2/05
RFE 6/29/05
RD of RFE 9/21/05
AD 9/26/05
I hired a lawyer, but I think you need do most of work by yourself, lawyer can help you on what you should do to get the evidence.
After I've got three pages of RFE, I was very upset, I thouggt I did what I can, so I don't know how to answer those question. People always say to get more recommendation letters, but how, what to write in these letters, I don't know, so at this monment, a lawyer can help you a lot, if some you can't answer, leave there,just try to answer as many questions as you can, don't be afraid. You will be fine.
You also can search google, you will find some other useful threads about GC.
Help it helps.