通知上有这么一条:
Supporting evidence of your relationship, such as copies of any documentation regarding joint assets or liabilities you and your spouse may have together. This may include: tax returns, bank statements, insurance documents(car,life,health), property documents(car,house,etc.), rental agreements, utility bills, credit cards, contracts, leases, photos, correspondence and/or any other documents you feel may substantiate your relationship.
这一条是单独列出来的,给父母申请绿卡,除了出生公证能证明父子关系外,其他列在上面的材料好象都针对夫妻关系的,还需要提供吗?也没有这样的材料.
谢谢建议.