8老师您好，我经常看您给大家无偿提供很多的咨询和服务，非常敬仰您！我的情况是这样的，我是公民，我有一个同父异母的妹妹，她跟她的养父姓。我们没有在一起生活过，而且父亲都已经去世，她也已经结婚，也有孩子，由于我的身体原因，我想给她申请移民，她们有十年的旅游，探亲签证，两年前曾经来过美国一次，按照现在的政策，机会大吗？
-There is no any change in the immigration law in this issue yet.
请移民律师办理还是我自己就可以申请，都需要准备什么材料，请您指教，谢谢！
-The procedure is very simple, and you may just DIY. You need to provide the evidence to prove family relationship between you and your half-sister. Read the I-130 Instructions.
-There is no any change in the immigration law in this issue yet.
请移民律师办理还是我自己就可以申请，都需要准备什么材料，请您指教，谢谢！
-The procedure is very simple, and you may just DIY. You need to provide the evidence to prove family relationship between you and your half-sister. Read the I-130 Instructions.
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