The lawyer cannot do something for you that is otherwise not possible or illegal. If he came in unlawfully at the age of 12 and has remained here and is now over the age of 18, under the current immigration laws, it is not going to be possible for him to adjust status to permanent residence within the US. He will need to go back to Guatemala to consular process but as soon as he leaves the US, he will trigger a 10 year bar to reentry, which can only be waived by a showing of extreme hardship to a US citizen spouse.
Answered on Nov 29th, 2012 at 2:54 PM