What should be the total fees for filing L1A visa petitio along with 2 dependents for L2. Also pls advise lawyer's fees.

The I-129 is $325 and the dependents' I-539 is $290. They attorney can charge whatever they wish.

Enter US with B2 before joining as a crew member - how to use/activate the C1/D correctly?

There is no change of status, as far as I am aware, to C1/D. You should board the ship outside the U.S. if you wish to work as a crewman on a ship...

How long I can stay in America with a TDY A2 dependent visa?

You would be admitted for the same period of time as your husband. You could attend school, and you are allowed to stay while he travels outside...

My brother has a green card how can apply for mine with him and do i have to be in the uk and how long will it take

If you are asking whether he can file a visa petition for you, he cannot.

Not recommended. If you have been granted a new I-20 for OPT it would be okay.

Attention Houston Immigration attorney...What happen in Houston immigration marriage?

After fingerprinting, unless the interview happens before the card arrives.

For naturaliztion: Is the 18-month physical presence cumulative or 18 months solid (no trips abroad for the last 18 months)?

Cumulative. You don't need 18 months without a break.

My husband got deported 4months ago. he was a resident in the u.s he gratuate in the u.s he convicted a felony about seven year

It depends on the grounds of removal, and of was the crime for which he was convicted.

Can DACA and the work permit that comes with it be denied if I have a house valued about $150,000 under my name?

If you have $150,000 equity in the house, you may not have financial need. You must establish why you still need a work permit.

What can we do to take someone out of immigration wholed and they have a working permite

I agree with my colleagues, the work permit alone is not a basis to lift the ICE hold.