Ty Buffo.
It specifies all friendly models with in 18" gets +1 attack.
i.e. does not give your opponents models +1, but would give your team mates models +1 (because they're friendly). So why would Logan himself not get the bonus.
Unless he's just not friends with himself, and suffers from low self esteem I guess.
I would say yes he gets the bouns too
Actually, I would think the +1 attack for Logan would already be included in his stat line (as he is always friendly to himself). So, I would not give him an extra attack on top of his five (and he's in my army list).
GW couldn't include the +1 attack in the statline. The Living Legend ability can only be used once per game, and it only lasts for one player turn.