This document serves to verify the income of the resident(s) occupying a unit to be completed at time of initial move-in. Development: Unit Number: ______.This addendum serves as written declaration and documents the income of the tenant(s) occupying a. An addendum must include the basic elements of any landlordtenant agreement. The agreements contained in the Lease set forth the complete understanding of the parties and may not be changed or terminated orally. The owner must agree to include the HUD Tenancy Addendum as an attachment to the lease. Find top rated Florida addendum to lease lawyers. Post your project and get proposals from real estate lawyers in FL for your lease addendum. Utilize our lease agreement addendum to implement alterations or additions to an existing residential lease agreement that is currently in effect. You can, but it could end up unenforceable under these facts.