Afsoares

apart from robing the nobles with ace and sabo

true after being beaten the shit out several times by garp most likely

the coakroaches

"if violence isnt the answer you arent using enough of it"

a set of hidden island near the tree sisters would also work and give him a setting foot on the world specially with magic

but its a big maybe since its not been talked yet

not unless he was kicked out of the family

nymphadora rias(if you can mature her a bit or at least make her fight/train for what she wants instead of wanting everything handed to her) akeno

i was thinking of a barrier like the one on diaton where it would be closed by a door or something not like a full circle. but yes you are right

that doesnt make sense to me since its personal and of his family. unless to gloat about it