You cannot file for anyone but the brother. However if he is approved, they can immigrate with him on his visa, as "accompanying" relatives.
The above is intended only as general information, and does not constitute legal advice. You must speak with an attorney to discuss your individual case.
I agree with my colleagues ... one I-130 for your brother ... list his family on page 2.
Prepare them for a 10-15 year wait.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship.
can only apply for your brother and there is a question on the I-130 (2nd page top) that will ask you to list your relative's spouse and kids - that is where you write them in and the relationship
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