What is the possibility to our case(F4) get grant for visa if primary petitioner died ??

Your answer is here: https://www.uscis.gov/green-card/green-card-through-family/basic-eligibility-section-204l-relief-surviving-relatives Is...

What are the advantages or disadvantages to apply for advance parole for a second time? Even if it's for the same reason?

The number of times is irrelevant. The valid reason for AP is important. If you get married to a U.S. Citizen, even 50 years from now, you have...

Question about form I-864A

You would put your total income - line 22 on form 1040.

Is a reentry permit sufficient for the LPR to prepare for going abroad for more than one year?

You should bring your green card and your passport, of course. While you're abroad, you should keep significant ties in the U.S., if possible -...

Do I need to backdate my lease after getting married and trying to get my green card?

Joint documents are extremely important in a marriage-based adjustment of status case. Your joint documents should reflect honesty. The rental...

Without having a visa or green card,will this effect me getting the job even though I have a EAD?

How did you obtain your EAD? Who are you trying to work for? In certain government jobs, it may affect you.

Is he still able to apply for his green card by any other means?

If he can prove that the marriage was bona fide or there was abuse, he could still get his green card independently. With a child together, he...

Can my brother adjust now through 245i once my parents become citizens? Does CSPA apply to his situation?

Your parents may petition him and he can adjust through 245i once his F2B priority date is current.

Can citizenship be lost with these facts? Can they possibly be deported?

If USCIS finds out these facts, your naturalization and green card will be taken away and you would be placed in deportation proceedings. Due to...

I would do each one on separate page and reference the sections, your name and alien number. I typically don't have my clients date or sign these...