Lease Addendum / Amendment / Extension /… | documentorium

Lease Addendum / Amendment / Extension / Renewal online document creator for formalizing changes to an existing lease, including term updates, rent/deposit…

When to use and what to include

Prepare rental and lease terms online, then generate a formal PDF for tenant-landlord execution. Use this when you need to change, add to, or extend the terms of an existing lease — for example, adding a pet policy, adjusting rent for a renewal, allowing a new roommate, or extending the lease for another term.

What to include

  • Reference to the original lease: date signed, parties involved, property address, and the specific sections being modified or supplemented.
  • Exact language of the change — for an addendum, state the new clause; for an amendment, quote the old language and the replacement language side by side.
  • Effective date of the change, and whether it applies for the remaining lease term or a different period.
  • For extensions or renewals: the new lease end date, updated rent amount (if any), and whether all other original terms carry forward unchanged.
  • Signature lines for all parties (landlord and every tenant on the original lease) with the date signed, confirming agreement to the changes.

Common questions

Can I customize this Lease Addendum / Amendment / Extension / Renewal online for each tenant or property?
Yes. Edit rent terms, responsibilities, dates, and property details in-browser before finalizing.
Can I save this Lease Addendum / Amendment / Extension / Renewal and reuse it for future units?
Yes. With an account, save and duplicate it to keep leasing paperwork consistent across your portfolio.
Can I generate a sign-ready PDF from this Lease Addendum / Amendment / Extension / Renewal?
Yes. Export a professional PDF suitable for e-sign, print signing, and legal recordkeeping.
What is the difference between an addendum and an amendment?
An addendum adds new terms that did not exist before (like a pet policy). An amendment changes existing terms (like adjusting the rent amount or updating a tenant's name).
Can I change lease terms without the tenant's agreement?
No. Any change to a signed lease requires written agreement from both parties. For month-to-month tenancies, you can change terms with proper advance notice (usually 30 days).
Does a lease renewal reset the security deposit?
Not automatically. The existing deposit typically carries forward. If you want to increase it (within state limits), include that change in the renewal document and get the tenant's written agreement.
What if the tenant wants to renew but I want to raise the rent?
Include the new rent amount in the renewal document. The tenant can accept or decline. In rent-controlled areas, check local limits on how much you can increase the rent per year.