婆婆延期補充材料請教

婆婆來美國滿五個月（B-2）時我們為她申請六個月的延期。過了三個月後，USCIS來信要我們補充材料：
1.submit evidence to establish that you have a residence aboard to which you intend to return.
2.submit documentary evidence that you have the ability to financially maintain yourself throughout duration of your stay.
3.have your sponsor submit a statement of support specifying contribution he will make on your behalf, room board, living expense, medical expense, etc.

#1 是房產證，#2是銀行存款證明，#3該如何準備？請過來人指教！謝謝！

Merry Christmas and happy new year!

所有跟帖： 

• fill out I-134 and get it notarized. -金色風鈴- ♀ (0 bytes) () 12/21/2008 postreply 05:35:19