[Freeipa-users] freeipa in amazon

My company is looking to migrate a lot of our stuff to amazon and shut down what we have in the data-centers.  However there was no plan to migrate the ldap system we have.   I have since suggested that we look into FreeIPA.  This is well liked but my boss wants to use Route53 for split horizon DNS.  What I am wanting to know is 1) how well does FreeIPA handle Split Horizon DNS?  2) if we decided to not use DNS w/ FreeIPA and put the records in Amazon, will that suffice?  I have read other threads where it has been recommended to NOT forgo DNS setup w/ FreeIPA. Thoughts, comments, suggestions? Thank you!