They had some declawed cats when I was there, they do take them. They also take FIV-positive and other hard-to-place cats.
Typically only front claws are removed when they declaw. Cats tend to fight with their front and back claws when they fight to defend themselves so know need to worry about him protecting himself. Shelters don't typically care if an cat is declawed, they are more co concerned about their wellbeing. I'd contact them but I'm sure they would take him. I saw Denver Dumb Friends League had a declawed kitty.
This is the kind of question that requires contacting RMFR directly.
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