What will happen to my property in China after I get my U.S. green card?

Your domestic real estate is private property. No matter which country you are a citizen of or which country you have obtained permanent residence in, it is still yours. Therefore, your disposal:

1. Entrust others to manage it (rent it)

2. Sell it

3. Keep it (to temporarily stay with other relatives) or empty it Close (pending opportunity to sell or lease)