Leases is an extensive subject that covers a variety of topics, including vacancy leases, renewal leases, security deposits, roommates, subletting, and more. A New York roommate agreement is a contract that separates the cost of rent, utility fees, and maintenance duties between roommates.Here you'll find answers to the most frequently asked questions, downloadable forms to help you manage your lease, and essential telephone numbers. 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. Landlord and tenant are required to include their names in the lease agreement. 3. Lease can be either written or oral. The agreement typically spells out the roommates' financial obligations to the apartment and each other. The termination notice must be in writing and you should state the reason why you are ending the lease contract.