Question

Scenario: John, a tenant, entered into a lease agreement with Mary, the landlord, for a residential unit. The lease agreement stipulated a fixed term of one year, commencing on January 1, 2021, and ending on December 31, 2021. On October 1, 2021, Mary sent a notice to John informing him that she intends to terminate the lease agreement by the end of October 2021. John refuses to vacate the premises and claims that Mary cannot terminate the lease agreement without just cause. He insists on staying until the end of the agreed term.

Question: Discuss the legal rights and obligations of Mary and John in relation to the termination of the lease agreement. Cite the relevant provisions of the Civil Code and the Administrative Code of 1987 that would govern their situation.