The annual cap for the H-1B visa category has been reached for Federal Fiscal Year 2013 (beginning October 2012). As such, an H-1B visa will not likely be available to you until October 2013. The L-1 is most likely the most favorable visa category available to you and your company at this time. I suggest that your company consult with competent counsel to assess other options that may be available as well.
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This answer is of a general nature and should not be relied upon as final, nor is it intended as legal advice. Consult with a qualified attorney before making any legal decisions. Gen Kimura, (832) 247-6932.
The earliest your employer would be able to file for an H-1B is April 1, 2013 and the earliest that you could be on H-1B is October 1, 2013.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.