There are many different types of visas that would allow someone to come to the US and work here legally. A useful answer to your friend's question would require a comprehensive discussion of his work history and qualifications, his financial resources, and his family history (in case he has any family ties in the US) as well as his plans for the future (for example, how long would he want to stay in the US and how soon does he want to come here?) A forum like this is not the best way to get this type of advice.
Answered on Apr 08th, 2013 at 3:01 PM