The benefits:
The L-1 visa has two subcategories and procedures:
After the expiration of the 7 or 5 years respectively, the foreign national can generally only qualify for L-1 status again by working abroad for at least 1 year for the parent, subsidiary, affiliate or branch office of the U.S. company.
In the case of a blanket L-1 visa petition, it has already been determined by USCIS that the company qualifies for the issuance of Intracompany Transferee visa.
Can an L-1A Visa holder apply for a green card?
Yes. After one year in L-1A status, an L-1 A visa holder can apply for a Green Card without going through the process of Labor Certification.
Can the spouse and children of an L-1 Visa holder work in the USA?
Yes. As long as the L-1 visa is valid, the spouse and children under 21 can get a work permit in USA.
Can an L-2 visa holder start a business?
Yes.
Is there a quota or limit for L Visa category each year?
No.