How do you convince University to allow Fraternity Expansion

[Forgetmenotivy]

Has anyone had any luck getting a private university to allow expanison of a new fraternity. My husband was a Delta Chi and my son would like to start a colony at his school. The University states they don't believe they can support 3 groups at the present time; currently they have pike and fiji. He doesn't really want to join either of those and has his heart set on d-chi. D-chi is ready to go on campus if they are allowed. We just need a way to convince the university. He currently has 15 guys ready to join with him. the houses on this campus are about 35 guys. it is a small private school.