Turn an Alpha Kappa Alpha chapter into a citywide chapter?

I'm REALLY interested in being a member of AKA but my school does not allow greek life. That being said, there is a nearby college who has an inactive chapter of AKA, but they can only allow students of their school to be part. How can I possibly advocate for that school's chapter to turn into a citywide chapter? Also, how do I reactive this chapter? PLEASE Help me!