公民申请姐姐一家如何办理？
-File I-130 first and then, wait for the National visa center to give you instructions.
移民局费用交几个人的？
-Only need to file one I-130 for your sister and put her family members'names in the I-130 and only need to pay one I-130 filing fee.
要交什么材料？
-See the left icon: "亲属移民从 I-130 开始"
