[milemi]

When you’re on H1-B you’re applying for the green card through your employer, which is a multi-year process. So even if you find an employer who will sponsor it, you’ll be going back to the end of the line.

[jrflowers]

If you already have an H1-B and are in the US there is a transfer process that is not identical to the original application process.

[milemi]

Only after labor and then I-140 have been approved, which together typically take more than a year. Also, many employers won’t start your green card application until you’ve been there for a year.