✔ 最佳答案
1. US > HK - Not until a HKID has been issued. HK > US - Not until your EAD has been issued.
2. US - Get a marriage license and find a place and time for an authorized person to perform the ceremony. The fastest is 1 day.
HK - Registration is needed at Immigration Department. Then you will have to find a person to perform. However, as Hong Kong allows people to contest the proposed marriage, a minimum of 14 days is needed.
3. US > HK - Yes. HK > US - as soon as the immigration application is approved. The person will become a resident.