Free lease-extension forms can be found at Free-Legal-Document.com and Free-Real-Estate-Forms.com. An additional library of downloadable lease-extension templates can be found at TidyForms.com, as of 2016.
A lease-extension form is a contract that extends the terms of the original lease on a piece of property for an additional year. In general, lease-extension forms allow for a change in the amount of rent paid for the property, as well as other minor amendments to the terms the original lease. In addition to having signatures from the landlord and tenant, sometimes lease-extension forms must also be signed by witnesses or notarized in order to be valid.