回複：回複：Sorry that the kid has to endure such a loss.

Bringing a child into the US, while you are not a parent and even a custodian, is a great responsibility for you and your family.

p老師 has an excellent article here:

http://blog.wenxuecity.com/myblog/14332/201006/32690.html

Start from there and ask questions both here and  法律谘詢  before you do anything.