Your inquiry is not very clear. As a starting point in reply, while the time spent in L1 status counts towards the 6-year maximum in L1 or H1B status, the time spent in dependent L2 or H4 status do not count towards the maximum in L1 or H1B. You can start a new 6 year-period in H1B only if you have left the U.S. and stayed out for at least one year.
An attorney-client relationship is not formed by my responses to questions on Avvo. My responses are not intended to be legal advice and must not be relied upon as legal advice.
A change of status to H-1B requires the employer to file an I-129, and requires that you have valid L-2 status until at least September 30.
You should retain an experienced immigration lawyer to review all the facts and advise you accordingly.
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.