I will soon work in U.S. with an L-1 visa. I have a few questions:

Can I work for other employer at the same time working for the L-1 visa sponsor? can I work for the L-1 visa sponsor part-time? and can my spouse get the work permit to work in U.S.? Thank you very much.

Answer:

The L-1 visa holder should only work for the U.S. employer which is the L-1 visa sponsor. The L-1 visa employer should be a parent, branch, subsidiary, or affiliate that employed the L-1 visa holder outside the U.S. Generally, the L-1 visa holder is expected to work full-time in United States.

But the alien can also work less than full-time, if he or she uses a major portion of time to the job.

The L-1 visa holder can travel out of the United States before the L-1 status expires; and the L-1 visa holder's spouse can apply for employment authorization to work in U.S.

http://www.greencardapply.com/question/question14/L1-Visa-Sponsor_0309.htm