[PhoenixAzul]

(PS, I think it is ACACIA)

Well, you obviously could continue with ATA. There is a local Pi Kappa Phi fraternity here, not affiliated with the national Pi Kappa Phi, but they were founded before the national. Soooo...you'd have to look at foinding dates if something lega l were to come up. I think your best bet would be to come up with a different name/letters, but incorporate ATA in your pin/ritual/pledge book/history stuff.

I personally really like the one name orgs, they're something different.