Like I said, it's not as easy as it sounds. Employment-based visas take a very very long time...years. It's a long process with various steps.

About 245i, 245i is essential to those who entered without inspection. Without it, they must go home to their home country to adjust their status. So if you've grandfathered 245i, you can adjust your status inside the US either through a family, marriage, or employment-based petition.