Tonya my heart is breaking for you. What a horrible thing to have to experience. You have to take care of your son. His health has to come first. It's not like you are dumping Ron and Raven. You are doing your very best to find them a good home.
I would take them in a minute if there weren't too many bodies in my house already. I'm afraid trying to integrate two full grown cats into an already overloaded home would not make anybody happy, especially Ron and Raven.
I'm so sorry for you and I will keep praying that some wonderful PTer will be able to take these wonderful kitties into their home.

{{{HUGS}}} to you for all the pain this is causing.