If you are seeking to adjust your status in the US to a green card based on marriage, you should file the necessary forms which will authorize you...

More information is required. Your friend should set up a consultation with an experienced immigration attorney.

If you don't get a RFE by USCIS and just end up getting your interview notice, you may make the correction at the interview.

You should consult with an immigration attorney. Apply for a reentry permit if you are traveling outside of the US for over 180 days or frequently.

Since your adjustment of status is pending and you are in status, it’s not required to maintain status now. You may wait in the US while the AOS is...

You may submit a FOIA request to obtain a copy of your file.

You may request an expedite of the pending I-130 petition for your mother by providing supporting evidence. This is discretionary. USCIS reviews...

You may apply for your green card process even with an expired passport. Consult with an immigration attorney if needed.

I agree with my colleagues, you should be honest on your citizenship application.

You should apply for the re-entry permit prior to your trip. It is recommended that you work with an immigration attorney in advance.