I'm still a little iffy on in what circumstances a ship can have multiple focus tokens.
If I have squad leader on Lando, can he give someone a focus with his ability, and then that person can have another focus from Squad leader?
There's a difference between having a focus token and taking the focus action.
A ship can have multiple focus tokens, but can't take the same action more than once per turn, regardless of the source of the action. Since Lando and Squad Leader both allow another ship to take an action, they can't duplicate the focus action to get multiple tokens.
Off the top of my head, the only ways to end up with multiple focus tokens are Garven (who passes the token, doesn't allow the action) and Soontir Fel (who gains a token along with a stress).