He didn't have to leave the country to adjust his status even though he came here illegally? oh! maybe he was covered under the i245 basically if anyone filed any paperwork for you before 2000 i believe then you can adjust your status here in the u.s.

and yes if u came here legally w some sort of visa then you should b able to adjust ur status here in the us

go here http://immigrate2us.net/forum/showthread.php?t=792
if u have more questions

i think its under construction right now though