Is it possible to synchronize the users information among Microsoft Windows server 2012 , Red Hat IdM (IPA) server and OpenLDAP server for samba auth (IPA-AD-OpenLdap)?

Issue

• We have two IPA's Master and Replica working together in a production environment (RHEL 6.5 and IPA 3.0.0), authenticating RHEV access and RHEL Desktop users.
• We have also a Microsoft Windows 2012 server with AD, used by some windows desktops and Windows applications, and an LDAP with a samba scheme that offers samba resources to RHEL and Windows Desktops.
• We want to synchronize passwords between AD-IPA-LDAP and we have some questions:
  1 - Is that possible ?
  2 - Is there any procedure explaining how?
  3 - Is Windows 2012 supported to be integrated ? ( We've seen in RHEL 6 IdM - chapter 15, that only WinSrv2008-R2 (32/64bits) are supported