Can my US citizen family adopt kids and the get kids Green card ??????

[sandy1975]

Hi

My brother is a US citizen and I want to know if he can adopt his 2 nieces(my kids) who are under 18? So they can get US greencard before 18 and eventually get citizenship?

Just want to get them some stability. I am also in US and my GC process started recently. Being India born, the timelines are long and my kids might age out which I want to avoid.

thanks