I am looking to adopt an older cat, preferably a Ragdoll, who is content to cuddle and sit on my dad's, who has Alzheimer's, lap all day.

We have a couple cats that might fit the bill (none are Ragdoll's though). You might want to come by and check out Yoshi and Kingston. They are both adult and mellow cats. Thanks for the interest!

When I came here, I saw some of the happiest cats that fit the description you gave and even more. All of them would be happy to come home with you and your family.