I140 regular vs premium processing

Not sure what you are looking for here. There isn't much that you can do - the I-140 is the employer's petition and they can either choose to...

Once obtained the green card, do I need to apply for the EAD as well as a social security number?

You do not need an EAD (and in fact cannot get one) once your green card is approved. Your green card will allow you to obtain a social security...

Immigration officer forgot to write the departure date on entry stamp I entered on march 1st 2015 @newark airport on b1 visa

You should print your I-94 record from the CBP website (see link below) - that will have the date you must leave by.

I have been living in Mexico as an LPR, but have strong ties to US. Because my green card expired, I last entered US on visa.

You have some serious issues. Having entered the U.S. on a visa, you have essentially terminated your green card status. You should consult with...

H4 stamping for spouse while the principal H1B holder has the visa stamped with the old employer details.

Your spouse should be able to apply for an H-4 visa, even if you do not have a currently valid visa, as long as she has the proper documentation...

How long can i stay on h1 without a job?

Technically, once your job terminates, so does your H-1B status. The regulations provide no grace period for you to leave, and you are...

Hi, I am in USA with H1B visa and it will expire in June 2016.

No - the H-1B "Clock resets" only after you are outside the U.S. for one full year.

Yes, you can apply to change your status to E-2 without having to leave the U.S. The Form you file is I-539. Read the instructions carefully to...

Can I trade in share market if I do no have a work authorization in US?

If you are investing for your own account - but not as a job or professional day trader - you are fine. You are also entitled to apply for an...

Can i continue work on L2 (EAD) till my F1 status change case is pending with USCIS while my husband has moved from L1 to H1

I agree with Professor Caprioti. If your husband's H-1B petition was filed as a change of status, and his H-1 is effective, you are no longer in...