Since I couldn't see it in the rules I asked about it on a mordhiem forum.
This reply was backed by everyone else.
"No, each hero has their skill list. he MIGHT be referring to the fact of the Lad's Got Talent skill roll. With it, your NEW HERO that was previously a Henchman can now CHOOSE TWO SKILL LISTS from existing Heroes on the warband to learn from in the future. Otherwise, follow your warband rules for each Hero and their Skill Lists available to them."