信上說我的收入不夠。我3月份遞交申請時，除了W2的收入，還在表格上填了銀行存款，房子等等supporting docu，遠超過它的最低標準，我猜想可能是審核官員沒有去看, 我現在的問題是：
1. 信上說要我找一個joint sponsor. 這個sponsor可以不是配偶，是其它朋友嗎？
-Yes. Any US citizen or green card holder can be the joint sponsor if he/she is over 18 years old.
2. 我第一選擇還是自己做獨立擔保，雖然我的1040上w2收入不高，但是asset是足夠的。我可以不按照它補件通知上的要求找joint sponsor，仍然自己擔保嗎？
-It seems USCIS do not trust your properties. If you do not provivide the new evidences to convince them, your parents' I-485 will be denied. You had better also use your spouse's income (she files I-864A and you file a new I-864) or find a joint sponsor (this person files a new I-864) as USCIS requested in the letter.
3. 我們有個房子，但是grant deed上有我和我老婆的名字，同時還在信托下麵，我老婆也不是我父母申請綠卡的joint sponsor, 這個資產信息有用嗎？還是要我老婆是joint sponsor也可以用？
-You only can count on your personal property part. Caculation of the property for immigration sponsor is a little complicate adn you may consult an immigration lawyer.
4. 當初485和864都是今年3月交上去的，現在跟隨這個補件通知，我需要重新填寫864表嗎？
-Yes. File a new I-864 and provide all the support dcouments for the RFE letter.
3月到現在，財務上還是有些變化，還有當時疏忽了，有些其它個人資產沒有寫出來，請問這種情況我需要重新填寫一個864表嗎？還是寫個cover letter 說明一下？
-Not need cover letter. Be carefull to respond to the RFE because you have only one chance to respond. If USCIS is not convinced by your response, your parents' I-485 will be denied directly.
非常非常感謝！
