140 approve 후 한참을 기다렸다가 485를 파일하게 되어도 상관 없다고 구글 검색에 나옵니다.
When can I apply for I-485 after I-140 approval?
Anytime after you have received a “Receipt Notice” for your I-140 petition, you may file your I-485 green card application. You will have all of the same advantages (and risks) as any other concurrently filed I-485 application.