An L-1 visa petition (Form I-129 and I-129L Supplement) must be filed, along with relevant evidence and the filing fee. Upon approval of the petition, a Form I-797 Notice of Action is sent by USCIS to the petitioner or counsel.
The petitioner or counsel must then submit the I-797 to the consulate to apply for a visa, along with the DS-160 and any other documents required by the consulate.
By statute, L-1 petitions are supposed to be decided within 30 days. A realistic timeframe, from start to finish, is 2 months (unless premium processing is selected).
The principal L-1’s spouse and children under age 21 may be issued dependent (L-2) visas. Spouses in L-2 status can obtain work authorization by filing an I-765 Application for Employment Authorization with a USCIS service center, along with a copy of the applicant’s I-94, a copy of the marriage certificate, the filing fee, and photos.