Would a lawyer be able to help a fraud temporary green card holder to get the a permanent one.he got the temporary one seven months ago.

I doubt it, but lawyers can sometimes do just about anything.
You don't give enough details. He bought a fake or stolen green card, or got it under someone else's identity?
He can call all the immigration lawyers in town for free - they won't turn him in.

Without the full details, I cannot answer. BTW, this issue should not be asked in public forum.