I do not know why you are not responding, but you are not charged per question, per response, nor per answer. So after I give you my answer, you can continue to ask me questions without additional charge until you are satisfied. I apologize if it is a site issue that you posted and the post did not go through.
If your intention is that she immigrate, then your brother (or you when you become a U.S. Citizen) would apply for her by filing an I-130. The process will probably take around a year or so. You can try to have the case expedited by showing the medical urgency, etc. Here is a link on information about expediting the case:
And here is a link to the process of immigrating:
If she tried to apply for a B-2 tourist visa, it would most likely be denied because she overstayed once before, but the immigrant visa
should be approved since she did not overstay
more than 180 days.
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