Hi Chris,
Unfortunately, we were not able to resolve this due to some network infrastructure problems. OSPF did not exist in the second location and enabling it could have caused additional issues. Our resolution was to relocate both controllers to the same physical location and the same L2 network. We then enabled VRRP and pointed the RAPs to the VRRP address.
We were able to work with Aruba TAC and were prepared to implement the OSPF solution so that may be your best route.
Good luck, if you are able to complete it please let us know on here in case anyone else finds this topic.