If i have a pending green card thru asylum sins 2008 can i apply for a green card thru marriage ?

Yes, I have done that before several times.

My husband is in jail for assault now and has a Immigration hold. can he get deported? I file I-130 and was approved 2 wks ago.

The I-130 will not prevent deportation, since he must leave the U.S. anyway to get the visa. He may be put in removal proceedings. You may be...

L1A holder going to apply for greencard through EB-1C. Company has given me the green light. Financials not good..

If you have over 100 employees, a letter from the accountant alone may suffice.

F2A being current & filed I-485

Correct, your adjustment cannot be approved until the visa is current again. You do not need to remain in status as long as you were in status...

Do I need an immigration lawyer?

You should speak with a lawyer. You cannot file an I-485 for her, she would have to file that.

You would need to leave the U.S. to get the visa and would need a hardship waiver to return.

Being black mailed for green card and extorted.

You could report it to the police if you believe you have been the victim of a crime.

Entry into the US with a UK visa that is supposed to be expired upon return

Yes, if you cannot demonstrate any intent or ability to depart the U.S. they may well deny you admission.

That is up to the government of India. He can find out by calling his consulate for assistance.

I receive an email of interview appointment a few days ago should my familly receive a interview paper notice from nvc ??

They should. You must notify them also in case they do not get it.