Do I need to tell CIS about address change even before filing I-140 and I-485?
My NC has been pending for more than 2 years. Today a friend of mine suddenly told me,maybe it is because I didn't tell CIS about my two address changes before I filed my I-140 and I-485.
Is that the possible reason?
I thought I need to tell CIS about address changes only after I filed my I-140 and I-485, but before filing 140 and 485, I don't have to.
Many thanks for your answering