You can get an international drivers incense but after living in a specific state for a certain period of time you are required to get a state license

Hi..I am on Stem extension and my opt is valid till Aug 17,2015..I have my F1 visa stamped untill may 2015..Is it safe to travel

You should be fine. Carry your i20, EAD and letter from employer and last 2 paystubs

Is I 94 extended with H1 transfer and outside U.S. journey?

You need a new visa in your passport through your new employer. You cannot renter with an i94 or approval notice

Can I come to US and switch to other employer if they don`t cancel the other approved petition?

As long as you are working for current employer at time of consulate interview and when you reenter you should be fine

How can I replace my green card so that it shows my husband's last name if my marriage certificate shows my maiden name?

You can apply for a replacement green card but the name on your card should match your passport for international travel purposes

Applying for US citizenship

You can apply under the 3 year rule

Is US consulate going to cancel one of my H1B visa sponsors when I visit my home country for stamping?

You can only get one visa and will need to choose either a or b company as the sponsor on your visa

Form AR-11, Date/Port of Entry

Your first date of entry in that status

You can go and enjoy yourself. Be safe

What form do the company file for H1B transfer? What's the cost and procedure?

The procedure is the same as filing a new H1b application and involves filing a labor condition application with Dept of Labor and an application...