Allison Gopee

This is the biggest misconception of people have with immigration. They believe they can make the process faster. 
 
Not possible. Trust me, if there was a way, this board would have it on the front page.
 
You are looking at about a year before he steps foot in the US, and that is if everything goes good. Best you can do is prepare.
 
Here are the guides...
https://www.visajourney.com/content/guides/