Can I use old (2011) birth certificates from China (no longer a citizen) for my adjustment of status application?

Your certified Chinese birth certificate should be sufficient.

Can I get a green card from marrying a permanent resident?

Right now you are at risk of deportation. Once your future spouse becomes a US citizen, your overstay will be forgiven since you entered the US...

You need to consult with an experienced immigration attorney top straighten this out. To find a lawyer, select the “Find a lawyer” link at the top...

Whats the best way to get married?

If his plan is to get married in the US and depart, he can use the ESTA for this purpose.

No, as an F-1 student you are only permitted to work as authorized by your Designated School Official (DSO).

Most lawyers discourage enrolling in Day 1 CPT. I have no experience with them so you need to consult with an attorney who has a positive...

I485

Yes, you can file to adjust your status in the grace period.

Is it legal to work with 2 employers on same time, one on H1B and another on GC EAD?

Yes, you can work for two employers with a green card based EAD. You should submit a new I-9 for Employer A based on your green card based EAD.

N-400 ?

Once you have been a green card holder for five years you can apply for naturalization (citizenship) using Form N-400.

Yes, you must wait until the NVC notifies you when your husband must submit immigrant visa processing fees. Also, you should DEFINITELY use an...