If you can afford not to return to Brazil for at least 3 months, possible longer, and are able to get somebody to send your birth certificate to you, then AoS is an option.
You do not need an Attorney to file out forms for you, unless you also have a registered nurse wiping your buttocks when coming out of the bathroom.
The following forms are needed:
I-130 (Petition for an alien relative),
I-485 (AoS),
I-864 (Affidavit of Support),
2 x G-325a (biographic info for both of you),
I-693 (the medical),
I-765 (work permit—EAD), and
I-131 (Advance Parole—AP).
The latter two are optional but FREE when submitted concurrently with the other forms what you want to do anyway, so absolutely file them! Also needed is a check for $1,490. Personal check is okay and preferred as it allows you to trace when it was “cashed.”
After about 10 to 12 weeks you will receive a plastic card which now is a combination of work permit (EAD) and Advance Parole (AP). At about the 3 to 5 months mark, you'll have the interview. Thereafter you will receive your “conditional,” 2-year Green Card.
