Olivia Melendez He was adopted because his family got in a car accident. His parents and sister died, and he was the only one who survived.
This answer contains spoilers… (view spoiler)[His parents died in a car crash on a bridge, and his sister by a truck, right after a family picnic. He then went to the "Hopeless Hotel," where the Smileys adopted him. If you remember, it was a clear day, and became rainy. Jamie Grimm was describing post crash as, "All I saw was Red and Blue lights everywhere. 'Where's my sister? You have to get my sister!'" (hide spoiler)]
Adelynn I'm not sure if I'm right because it's been a little bit since I read the book but, I'm pretty sure he wasn't adopted and the smileys are just his relatives. Please correct me if I'm wrong!
Sarah Like Olivia said, he was adopted because his family got into a car accident. His mom, dad, and sister died and he lived. That is also why he is in a wheelchair. He is paralyzed from the waist down.