I am US citizen and planning to sponsor green card for my sibling. My sibling has already visited US in B-1/B-2 visa few times and holds that visa for another few years.
I know that this kind of application takes 10+ years to approve. From this context in mind, I have few questions -<br>

1) Can my sibling enter United States on the same B-1/B-2 visa after I apply immigration application?<br>
2) Can my sibling apply for renewal or new B-1/B-2/H-1 visa while application is being processed?

My Citizenship Interview was held on July 8th 2013 (become PR 6/2007) and it is pending since then due to middle name issue. My Indian passport and documents in US does not have middle name, but my Birth certificate has listed my name along with middle name (there is no middle name section in the birth certificate, so they did not bother to mark it separately.
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So it has been approx. 2 years and I reached out multiple times about the status and so far I got an answer “Will let you know once the decision is made”. Also I have been told that they need to do another round of security check with my name, including the middle name.
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Now, my company wants me to send me to Germany for some years (approx. 2+ years). I am not sure how I can proceed further. My wife and Kids are US citizens and they will have to move with me to Germany for couple of years.

I am an Indian and have been living in London for the last 6 years and currently in the process of getting British Citizenship, which I am hoping to get by April and subsequently British Passport by June. I work for a leading international bank in London.<br>

My girlfriend is currently doing Masters in Illinois, USA, so, I am looking to move to US, but understand the H-1B visa is a bit complicated.
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My question is, how does the quota system work for H-1-B visa and when does the new quota start, and what's the best period to apply for one? So, If I am looking to move there in October 2015, when do I have to get an employer to apply for H-1B for me (provided an employer agrees to sponsor me)? or, is there a particularly good time to apply for H-1B visa?
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Also, is it easier to get the visa if I am there physically in the US or it doesn't matter?