Re-homing 2 bonded black cats (Chicago)

Hello, unfortunately due to illness I have to re-home my 2 cats. One 7yr old male(tuxedo) and a 7yr old female (black) they are siblings and do need to stay together since they have been together since they were born. Both of them have their shots, and are neutered/spayed. They are both indoor cats and they do really well with children. Please email me for anymore information.