Applying for H4 EAD while H1/H4 expiring soon

[nefan]

Hello,

 

I got my I140 approved. But while that was in processing, i had to renew my H1. Both were approved a couple of weeks of each other . But the H1 was only renewed for a year. So my H1 is expring in Sept 2016. 

 

Now, I am planning to apply for my wife's H4 EAD based on I140 approval and I know that her H4 EAD will only be valid till Sept 2016 since that's what her I539 is valid till based on my current H1. 

 

My question is, does it take that long to get her H4 EAD? What happens if we apply for H1/H4 renewal while the H4 EAD is still in processing?

 

Thanks in advance.