its very unlikely that he will like all of you, they mostly have one person that it their own, and everyone else will be tolerated.
He is very young and my Yvie went through a phase of biting me, which lasted for months, it was mostly a testing/teething type of thing, but it was quite hard to live with. You've also got the terrible two's to deal with!
its highly likely that they will not be able to handle him. This is how greys are, it's quite a rarity that greys will go to anyone. My Yvie will be 4 at the end of the year and she's much more laid back and doesn't go to bite anyone, but there's only me who can handle her.