Hi, I am working on OPT right now and EAD card expires on March ending.

From your question, the simple answer is to maintain status prior to filing at least. So, you would need to extend. However, the best thing is to...

What my Chances are for a Successful Adjust of Status?

More information is needed. First, whether you entered as a crewman or "alien in transit" makes a significant difference on whether you're eligible...

I arrived U.S. as a B-1/B-2 holder 10 days ago. Should I apply for changing my visa status to F-1 right now or 3 months later?

As a matter of practice, I normally wait 90 days.

How can I withdraw an I-130 petition?

You can hire an attorney to do it for you or write a letter to the USCIS office that has your petition.

My sister is a U.S citizen and is 21 years old and unmarried. She is not living in the U.S. Can she sponsor my green card?

Yes she can petition for you but she will have to move here when you do in order to meet the "domicile" requirements to sponsor you. You can...

I485 interview with an approved I130 which may be revoked

If your petition was F2B category and you got married prior to your mothers naturalization then, yes, your petition will be automatically revoked....

Usually about 2-3 months. You can always follow up via INFOPASS.

I used to live in the states, and had a green card but We put it "on hold" when we left. I want to move back, can I resume it?

It is unclear what you mean by "on hold." If you received a Reentry Permit, that would have only been valid for 2 years. If you've been living...

Electronic response time on I-485

In my experience, the email comes within a week or so. If online case status shows it was received, then I wouldn't worry. If you don't receive a...

Asylum question

Your pregnancy does not affect your pending asylum application nor do you have an obligation to notify the asylum office. If you get denied and go...