Business Law- Contracts

Kalen is a seventeen-year-old minor who has just graduated from high school. He is attending a university two hundred miles from home and has contracted to rent an apartment near the university for one year at $500 per month. He is working at a convenience store to earn enough income to be self-supporting. After living in the apartment and paying monthly rent for four months, he becomes involved in a dispute with his landlord. Kalen, still a minor, moves out and returns the key to the landlord. The landlord wants to hold Kalen liable for the balance of the payments due under the lease. Discuss fully Kalens liability in this situation. Be sure to discuss if a minor has the capacity to enter into an enforceable contract? What does it mean to disaffirm a contract?