I am so happy for you and the kitties that you decided to see the cats for adoption and you choose the older ones.
And, also, I would have something to say too to those owners, which declaw cats and then return them to the Humaine society like a used product. At least, they shouldn't declaw them.
I hope your kitties will get along together.
How sad to hear that kitties don't know how to play... Interesting, what were they doing before in those awful houses with those awful "humans"?!?!