You will be in an interesting situation because although you will be a fully initiated member (which I think they'll be thrilled to have and may even want you to help with the colonization efforts), you will still have all of the additional work of starting a colony. It will be hard to not say "at my chapter..." all the time, but on the other hand, that knowledge will be very valuable to these girls, especially if you come from a chapter similar in size and demographic to the new one. Hopefully MaggieXi was able to set you up with a good contact. I don't know anyone involved on the East coast (if it's next year, it's pretty obvious where you're thinking of moving
) but I know people who know people so you can PM me if you are still feeling like you're not getting through to the right person. Good luck with your decision and if you do decide to go through with the move, I think that will be a blog and/or Quill worthy story - colonization from a different perspective.
/eta oh, and you might be able to get your Mom AI if she's not a sorority woman already! That's a perk of Alpha Xi Delta colonies that other sororities don't offer, and pre-existing chapters don't get either.