REply

尊敬的8老师，

1.您在上次回答我问题里说让我的bother提交I-864 as the joint sponsor,（因为我父亲是公民担保人，但他没有收入） 除了这个表还有我兄弟的身份

证明文件以外， 还需要提供他的税单（如果需要，要提供几年的？），工作证明，asset吗？
-He needs to provide the copy of the most recent tax return and W2, i.e. the tax return and W2 of 2017, and also had better provide those of 2015 and 2016 (optional). He also needs to provide the employment verification letter from his employer, not need assets if his income is enough.

2.我的brother准备的这些材料是在下面哪一步提交呢（截取移民局的来信）？-NVC will contact your father for these documents, and then your father needs to provide one I-864 though he has no income, and your brother provide another one together.

step 3: submit visa application form

step 4: collect financial dicuments

step 5: collect supporting documents

step 6: submit documents to NVC

非常感谢您！