questions for my friend's son

[maplefu]

Hi,
He just almost finishes his high school and wants to get a bachelor degree somewhere in USA. I introduced this method (by passing courses to get credits and degree) to him and he is really interested. But he also has several concerns, I just passed his questions here.
1. Does he need to be a citizen (or permanent living permission in USA), he's also from Canada
2. He's interested in BABS or BALS from TESU, does he need all credits from scratch?
3. Does he need to register to TESU first before he starts to study?
4. Probably he need to contact admission counselor first to understand which courses he need to take?
5. any other questions that he need to address?

Thanks