Delayed H4 to F1 COS. Please Help.

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Dear Attorneys

 

I have been a full time student on H4 visa from spring 2013. I have applied for H4 to F1 COS in june 2013 and am awaiting processing results. I have few questions in this regard:

 

1. My I20 start date : Sep-04-2013, but if F1 arrives mid-semester of Fall 2013 - is there a problem with this?

 

2. I would have completed 1 academic year of study in Fall 2013, Can i apply for OPT immediately after my F1 visa is approved or is there a wait time.

 

3. In spring 2014 I will register for 1 course only. If F1 arrives in spring 2014 will i be in a valid status? Does reduced course load hold good for this.

 

4. If i apply for OPT after my course completion and USCIS takes 3-4 months to process it, will i be in status until OPT processing is complete?

 

Thank you for your time and valuable advice.