Lease Addendum Templates

A lease addendum is a separate document that lets a landlord add or change parts of a lease agreement without rewriting it. The addendum becomes part of the original lease when both parties sign the contract.

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Last updated February 19th, 2025

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A lease addendum is a separate document that lets a landlord add or change parts of a lease agreement without rewriting it. The addendum becomes part of the original lease when both parties sign the contract.

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“Disclosure” – A document attached to a lease agreement that provides important information about the property.

What is a Lease Addendum?

A lease addendum is a document that provides additional details or clarifications to a part of a lease agreement.

  • Example: if there are rules about pets in the lease, a separate “pet addendum” may list the rules on pets specifically.
  • Signatures: Some addendums, such as the lead-based paint addendum, must be signed before the Tenant(s) can move in.

What is the Tenant Refuses to Sign the Addendum?

If the Tenant refuses to sign an addendum, the original lease terms remain in effect. For example, if a pet addendum isn’t signed, pets aren’t allowed on the property.

How to Break an Addendum?

  • Both Tenants and Landlords must follow the rules in an addendum.
  • If either party violates the addendum, it can lead to eviction for the Tenant or allow the Tenant to leave without paying rent or fees if the Landlord fails to follow the addendum.

Sample Lease Addendum Template