Technically yes but this is a mistake. Your I-94 should also be limited to3/25/2013 instead of 12/2014. Your I-94 cant or shouldnt be valid beyond the principal's L-1A/L-1B holder. This may come up when you apply for a change of status (COS) from L-2 to H-1B on April 1 2013, USCIS may issue an RFE-Request for Additional Evidence and ask to see a copy of your spouse's L-1A I-94 and your marriage license to see whether you maintained status. So, facially your I-94 is valid until 12/14 but it can't be since your status is tied to his. Now, if he hasn't met the max 7 years on his L-1A and can get it extended to beyond his I-94 3/25/13 date then you're ok, otherwise I forsee a potential problem. Call or email my office for a consult or chose from fellow competent colleagues on this site. Good luck.