US Immigration from China

HI everyone. I am about to file F2B for my daughter who is over 21. A few questions would be very helpful.

Could she get married at all during the waiting, or she could until priority date is current?

Could she come to the US to visit me using her existing visitor visa (still valid for 5 years)

Could she come to the US to study/work, I'd assume she can't get a student visa abroad, but can she come to the US and change visa?

Thank you!

Dear Forum members,

My wife and I are U.S. citizens living and working in China. Our granddaughter (8 years old) is an LPR living with us and attending school here. We are all planning to relocate back to the U.S. in 2021 after she completes her early schooling here.

She has one reentry permit now and we had planned to apply for her second and last one this August-2020 as this one expires in November of 2020.

The problem is that her school's spring semester here got delayed because of the virus and we just found out it will now be starting May 1st. That spring semester would end in September and they would start right up with their fall semester.

We had planned (what we had done in 2018) to fly to the U.S. in August (summer break), send in the I-131, wait for the biometrics (about 6 weeks), attend the biometrics, and then fly back here to China.

Now, this becomes problematic (no summer break) so I'm wondering what options we have.

Can we go back to the U.S. now and apply early? How long before the reentry permit expiration date can one apply?

We know we would either have to stay in the U.S. for six weeks to wait for the biometrics or, after applying, fly back to China, and then fly back out again for the biometrics. Big hassle but, could we do it with no reentry permit since you have to submit the old one with the I-131 application?

Could we, go later, say in October (The National Day holiday would give us some free time), and apply close to the expiration date? Can she be in China in between the I-131 application and biometrics appointment and reenter the U.S. while the reentry permit has expired?

Of course our situation doesn't take into account possible USCIS office closures or delays and , lack of flights, or quarantines in either country!

Thank you for your help!

-Mugs