回複：depends on your own green card

If you immigrated on a marriage green card (GC), YOU'd better prepare all documents proving your rel'p with your hu*****and.
if yours an employment based GC, normally Guangzhou US consulate will not ask much. must have your green card copy (front and back). if you have I824 receipt, bring a copy with her. (bank statement, tax return etc, I-864) are all needed.
The more documents you have, the easier for your daugther or her guardian.