@PennyIf there is one thing January is known for, it's his laziness. When he needs something done that he doesn't have to do himself, he gets one of his debtors to do it for him. He's spends decades at a time sleeping. And supernatural historians credit him as the reason why Christianity considers sloth to be one of the Seven Deadly Sins.
And this whole executor of the will thing? January's got a feeling that it's going to be a lot of hard work. And while he does feel obligated to do it to fulfil his old friend's last request, January certainly wouldn't argue with the prospect of someone willing to tag along with him and lend a helping hand.