A lease extension addendum is a document that extends the length of a tenant’s lease agreement. It can be used to prolong the existing rental agreement between the landlord and tenant, or to extend the contract for an additional period of time. The addendum outlines all of the changes being made to the lease agreement, such as increased rent, updated rules and regulations, new obligations, or any other details that need to be included. This document serves as an official record of the lease’s extended terms, making it an essential part of every tenant-landlord relationship.