You should check USCIS case processing page for field office times.

What paperwork needs to be done to bring a 79yr old grandmother to the USA?

Your mother can petition for her by filing Form I130 and initiating consular processing. For further guidance, it is best to consult with an attorney.

Will moving from VA to MD while pending an asylum affect the case?

You should notify the asylum office of any changed address. It should not drastically impact your case given your interview was already done.

How long does it take to be approved a Form I-539, application for extend..From b2 to extention?

There must be a valid reason for your extension request, not that you are awaiting until your spouse becomes a USC and can petition for you.

Hi my boyfriend is her in the us on a school visa. We would like to get married what are the first steps do I need to do

Your spouse may be adjustment eligible. If this is the case, you would send form I 130 on his behalf. He would submit form I485 to adjust status...

Approved I-130, Petition for Alien Relative, what should I do next

It depends on which category you are filing under. It is best to consult with an attorney for guidance.

My spouse forgot to sign on form I 751 what I should do..

Yes, your spouse should sign Form I751 and return it back to USCIS.

How i can legally live and work in the US?

Your USC spouse may submit a petition for you and you may be eligible for adjustment of status. More information is needed about your circumstances...

Why am I being denied aid?

You should consult with your schools financial aid office for school related questions.

Does the dead of principal applicant stop the process of immigrant of others beneficaries such as wife and children ?

Depends on when the petitioner passed in relation to the I130 approval. Consult with an attorney for guidance.