She needs a lawyer.

Hire a lawyer. Dont hide this or anything like that - she needs to tell it to the consulate.

She may be inadmissible.

She may need a waiver.

Too complex issue to answer here, need a lawyer to look at the tiny details

A good lawyer knows how to check convictions.

If the law says you did A or B, and A is bad but B is OK. Then commit B but deny A, she might be fine.

She really needs to check the law based on which she was convicted.

This is exactly the kind of case that needs a lawyer.