H1 Visa to Green Card?

[nursenamaganda]

I have a question about H1 and H2 Visa. A friend of mine and her husband went here in the United States as a business / tourist visa separately. They had been granted multiple visa. They were here for almost 10 years ago and didn't went back home to our country. She told me her husband got a sponsorship from a company which he had work for several years; but now his husband sponsorship had finished and the wife is the one now got a sponsorship from the same company so that they will going to stay longer here in the United States.

But as of now, the wife is taking a nursing so that whatever happens to their paper they have still other options like the wife when she finishes nurse she will going to find another sponsorship at the hospital.

Their paper are still in process for the wife's sponsorship. The husband's sponsorship had already finished so they are waiting for the approval of their paper. They hired lawyer which cost 15,000 dollars which I think the lawyer only getting some money out of them. The lawyer promised my friends' family that they can now able to process their paper to green card.

How sure is that? Since they came here as a business/pleasure/tourist visa, they didn't went back home to our country. They stayed here and only got sponsorship but the husband's sponsorship had finished already he cannot renew it anymore. That's why the wife made them as the one whose working at the company just to show another sponsorship; but the truth is the wife never work there as a matter of fact she is taking nurse course just to be able to finished and then get another sponsorship as a nurse.

My question is, how sure my friend's paper would be process. Can they stay longer here in US and able to get green card as the lawyer says?