Unknown, but will probably be the standard 90 days.
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.
Keep in mind, we still don't know how long a deferred action grant or denial will take either. So there are two unknowns in your question - the deferred action time frame and the work permit time frame. You can find this information most likely after August 1, 2012 once the anticipated guidelines are released, or follow my firm website or Facebook page to get periodical updates.
Best of luck,
Sanjay Paul, Esq.
This is not legal advice. No attorney client relationship exists between us.