Maintaining permanent residency (Green card)?

My colleague is absolutely correct in all the points he has mentioned. To play it safe and maintain your GC you must not take trips out of the US...

My colleague is absolutely correct, the I-130 will have no bearing on your J1 waiver.

You need to use your approved I-360 to apply for Adjustment of Status. Consult with your attorney as to the next steps to follow. Since you have...

Can I enter my home country with H1b visa and get F1? If it fails, can I get H1b Visa stamping interview and comeback to U.S.?

As long as you still have a valid H1B you should be able to get your passport stamped under said visa to come back to work for you H1B employer.

Will my boyfriend get in trouble if I move in with him?

It depends on what your mother says when she calls the cops. If your boyfriend is accused of a crime his DACA could be in jeopardy.

If Uscis denied my petition because they consider my prior marriage was not in bona fide will my Green Card be in danger?

As my colleagues have mentioned: if USCIS determines that your prior marriage was not bona fide, your current green card could be in danger.

What do I need to show at interview if I am unemployed?

For your interview you need evidence of a valid marriage, not of employment.

How can I get my social security number?

You need to go to your local Social Security Administration Office with proper ID.

Visa Bulletin for July 2019 noticed that the final action date for F2A is listed as “C”. Can I AOS from July on?

Did you choose to undergo consular processing? If so, your children might have to go through their green card process in their home country. If...

Will getting a divorce affect my Naturalization?

You are already a US citizen. You can feel free to get divorced.