No it won't impact the application but you must report the change of address through USCIS webpage within 10 days of the relocation.

I864 RFE - below income requirement:

I agree with my colleague that it would be advisable to do both, acquiring a cosignor and submitting your most recent year tax return if it meets...

Can I enter America with a B2 visa if I am applying immigration into America through Guangzhou NVC ?

You can try to with appropriate evidence that you will only be staying briefly during that visit.

Sponsorship

Yes, if you signed the affidavit of support and acted as a cosignor, your obligation remains despite the divorce.

How can I get my girl friend to America?

There are many ways depending on your status in the US. You can petition for her as a fiancé if you are a USC or through consular processing once...

I was denied my visa extension for B1 because I sent an outdated form, they will let me reapply, do I need to pay another $370?

Yes you must pay the fee again and with a new money order.

I can't remember my old passport number for my i-485 immigration forms. How to figure that out?

You can leave it blank for now and if it is needed, you can contact the Swedish consulate to obtain the information.

I agree with my colleagues - you should use your legal name for the immigration forms.

Will it hurt my wife's chance to obtain a U.S. Visa if I'm receiving government benefits?

If you do not meet the income requirements you can use a cosignor to satisfy the requirement.

Can I work if my green card is pending and my work permit expired?

No you cannot work while the petition is pending unless you have acquired your EAD.