I am working as a Senior Software Engineer here in Birmingham Alabama. The company is multinational company. I have MS degree in Computer Science with 5+ years of experiences in Software and IT industries. Comparing to California, New York and Boston, the salary is a bit low here. How much salary should be in minimum to quality for PERM processing to apply for green card through EB2? I heard that I can hire a lawyer and pay for green card processing fee myself to apply for green card, is that correct?