"Renewals L-1 status may be renewed and extended within the United States. Except in the case of blanket petitions, a new I-129 petition must be filed. Renewal in the United States applies to status only, not the actual visa in the passport. For visa renewal, the applicant must go to a U.S. consulate or embassy outside the United States. An alien cannot leave the United States and then reenter without a valid L-1 visa, and must appear personally before a consular officer for visa issuance. This often leads to difficulties for applicants, because it means leaving their adopted home in the United States for as long as it takes the embassy to issue their new visa. In particularly busy times of year, or at some consulates or embassies, this can take several weeks or more." (wikipedia) If anything, don't wait to get it renewed, just go and talk to someone or call the USCIS and ask, you don't want to ever ever extend/have your visit expire, it's not a fun process to go through.
Yes, L1 visa is a work permit visa. The L1 visa enables employers to transfer employees to US office or establish a office in the US. This implies that a person on a L1 visa can work. It is only a change of workplace by remaining in the same organization.
The L1 Visa number is located on the visa page that is usually stamped in the passport. The visa number may appear under control number on the visa page itself.
AA
Yes, you can go to school part-time as long as you maintain your L1 status. L2 dependants can study full-time.
No Way
I obtained my SS when working on an L1 visa in 2004 and after a year no longer worked in the U.S. I just spoke with Social Security representative (05/18/09) and, they quickly confirmed my number was valid and active.
no
no
Alien Registration Number is only for Green Card holders.
Unscrewing any light bulb in series will result in the others turning off. If they are in parallel, unscrewing one will have no effect. For example, say we have lights bulbs L1, L2, and L3, where L1 and L2 are in parallel and L3 is in series with L1 and L2. If L1 is unscrewed: L2 and L3 will stay lit. If L2 is unscrewed: L1 and L3 will stay lit. If L3 is unscrewed: L1 and L2 will turn off.
It depends on the visitor's visa. B1/B2 holders have a maximum stay limit of 6 months since entry; even then, the immigration officer at the port of entry may determine the stay period has to be smaller. L1 holder's stay would depend on specific nationalities, from 3 months (Mexican-Iranians) up to 5 years (Mexican-Japanese).
I believe you are not a resident alien at all, you are a alien, legally allowed to live and work in the USA for the duration of the L1 (up to 7 years) but you are not a "resident" There are many law firms who could answer precisely this question.