If he has an uncle, then he does not need anything. His uncle can sponsor him under family based green card. I think he will get it within 5 or 6 months. His uncle can sponsor GC to only one relative (and his/her spouse,children) in his life time. Again check the website. Everything's there. Or go to this forum: http://www.canadavisa.com/canada-immigration-discussion-board/index.php?PHPSESSID=f2231d4bfdb1a7c7eedcd67d0b1960d9&board=4.0