For example, the tenant must pay the rent every month for the agreed term, and the landlord cannot increase the rent during this period. Under an existing lease agreement, the lessor may only increase the rent in response to additional residents if the contract provides for a period that allows the rent to vary by a certain amount depending on the number of occupants or the parties all agree to sign a new lease. This roommate agreement aims to help people who live together, to understand and reconcile their rights, duties and relationships. It is recommended that all changes during your lease be updated in writing in this agreement. Your good roommate is a very imaginative person. I never thought I`d call the parents of the wrong roommate. If parents are reasonable people, this situation should be resolved. .