Change of status application pending and current status expires in 2 days, can i stay?

While your case is pending, you should stay.

Do I need a immigration lawyer

I would apply for advance parole and would have a certificate of disposition on hands.

Hello, I am on work visa, has a record for shoplifting case(2008) which was dismissed in the court without any fine/penalty

If the case has been dismissed in Court without any negative consequences to you, there should not be any issue of inadmissibility.

Almost out of F-1 status due to debt in tuition but married to US citizen

Even when F-1 visa is being terminated, you can still apply for adjustment of status. It should not be a problem.

You cannot legally volunteer. When your EAD is expiring, you are prohibited from volunteering.

Will I be able to extend my F-1 student visa if my asylum application is still pending?

I believe they will not extend F-1 because F-1 means you are here only to study and not to stay permanently.

People hired me to look at their paper work many times. Yes, the fee is going to be minimum.

Hello, My nephew has valid B2 visa, (twice extended for medical treatment ) Now he's 15 year old,

He can definitely do it and can apply for change of status. I had quite a few clients in the past who went from changing their status to F1.

Would I be able to travel as a "dreamer"?

You will simply apply for advance parole to be on a safe side.

Is it possible for an employer to block H1-B Visa once it has been issued

The employer can simply terminate your employment or can even ask Immigration to revoke the petition. In any case, you would not be able to "use"...