Learn how the rent can be divided between tenants, and other key steps you need to think about when writing a roommate lease agreement. Adding a roommate involves filling out some paperwork, like an application, and maybe going through a background check.To start a case to make your roommate move out of the home or apartment that you share, you need to fill out a Notice of Petition and a Petition. A "Notice of Termination" is a paper sent to your roommate with details about your decision to make your roommate move (terminate the tenancy). You need, at a minimum, a month to month lease for the room. If you want to make rules and the home and use, that would be a roommate agreement. What do I include in a Roommate Agreement? Legally, you cannot force a roommate off a lease unless they were convicted of a crime. That being said, landlords may agree to change the terms of the lease. This article explains what can happen when there is no formal residential lease agreement in a roommate, family, or similar situation.