When H-REAP is enabled would the client pull
an IP from the local switch vlan dhcp pool or would they pull from the ap vlan group dhcp pool?
If you have the AP configured for H-REAP mode and have enabled VLAN support and then configured the Local VLAN's for each of the SSID's that you want H-REAP then when the client connects they will get an address from the local switch port pool or from what ever local dhcp server you have there.
Hope this helps. please feel free to rate and this answer.