Honestly, the word "dominance" has been misconstrued and misunderstood. Having had the fortune of observing actual groups of feral dogs, I can tell you that our conventional perceptions of a "dog pack" are not accurate at all.

Hank's behavior does not sound dominating to me. He sounds like a normal puppy-adolescent. He needs obedience, rules, and boundaries. All adolescent dogs do The chewing is extremely normal. The fact that he chose to chew your pants just means that you should not have left them within his reach. His peeing in the house probably means that he could benefit from a refresher course in housebreaking. He does not run the house. You do! Dogs really don't have a desire to "run the house". They (generally) have been domesticated for far too long to want these primal desires ;]

In the meantime, I would do three basic things to provide more structure:
- A lot of exercise
- NILIF
- Brush up on basic obedience in all situations at all times