What is the process involved if you are marrying an illegal immigrant?
My boyfriend entered this country legally on a tourist visa, he overstayed his time. He has been working in this country since he has been here. We are planning on getting married. What is the likelihood of him getting legal residence without having to go back to his country.
The short answer is - You can go ahead file for his adjustment of status. If you have any issues make sure you talk to a good immigration lawyer.
If your boyfriend entered legally, then he may be able to adjust status here in the US. You say that your boyfriend has been working since he's been here. Depending on the length of time he's overstayed and whether or not he's filed his taxes, you may have to address a couple of issues when petitioning his green card.