Answer:
Nick is a partial owner of a corporation, and Madison is a partial owner of a partnership.
Step-by-step explanation:
Based on the scenario being described within the question it can be said that the main difference between Nick and Madison is that, Nick is a partial owner of a corporation, and Madison is a partial owner of a partnership. This is because a company acts as one entity, therefore the loan is responsibility of all involved and therefore they cannot force Nick to pay back the loans. While in a partnership each individual or owner has their own responsibilities and can be held accountable.