My daughter and I have green card. We left to China on 1/18/12 and planed to return to US in Feburary this year. But my daughter (12 years old) broke her leg (bon fracture) on 2/18. She is still in the process for healing, therefor, our return date might be July 16 or August. I don't know if it would be a problem.
-No problem at all because your stay in China is less than one year.
What problems would be? If we need a letter from her doctor about her medical condition for the US customs afficial, what do we need to illustrate in the letter, do you have sample letter?
-Not need such letter. The green card and passport are enough