Key Lease Addendums Delaware Renters Should Know

Understanding what addendums might be attached to your lease can help protect your rights as a renter in Delaware. Addendums are extra clauses or documents added to your lease—sometimes at signing, sometimes after. While some addendums are standard and harmless, others introduce rules on topics from pets to repairs or renewal conditions. It's crucial to know what they mean before you sign or renew your agreement.

What Are Lease Addendums?

A lease addendum is an additional agreement or clause made a legal part of your rental contract. Landlords use addendums to clarify specific rules, outline extra services, or set special terms. In Delaware, a lease addendum must comply with the Delaware Residential Landlord-Tenant Code and cannot override your basic tenant rights.[1]

Common Lease Addendums to Watch in Delaware

  • Pet Policies: Addendums may limit types or sizes of pets, require additional deposits, or outline cleaning obligations.
  • Maintenance Responsibilities: Some leases shift certain repair duties to tenants, like yard upkeep or minor fixes.
  • Early Termination or Break Fee Clauses: These specify possible charges if you end the lease early. Watch for how much notice is required or the fee amount.
  • Renewal Terms: Addendums may outline automatic renewal rules, new rental increases, or set out how and when your lease will renew.
  • Rules for Guests or Subletting: Extra forms may ban or require approval for long-term guests or subletting arrangements.
  • Smoke-Free or Mold Disclosure Addendums: You may be asked to agree to no smoking inside or acknowledge information about past mold or water damage.

Always ask for copies of all documents and read each addendum carefully. If you are unsure, seek advice before you sign.

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Legal Protections for Delaware Renters

The Delaware Residential Landlord-Tenant Code governs landlord and tenant relationships. An addendum cannot remove your rights, such as the right to a safe dwelling, privacy, or proper notice for entry and rent changes.[1] Unfair or unclear clauses can be challenged with the appropriate authority.

Who Handles Rental Disputes?

In Delaware, rental disputes are managed by the Justice of the Peace Court, which oversees landlord-tenant issues and lease disagreements.[2]

Official Forms and Practical Examples

  • Landlord-Tenant Complaint Form (Form CF01):
    When used: If you need to challenge an illegal lease addendum or enforce your rights, file this form with the Justice of the Peace Court.
    Example: Your landlord introduces a new "pet fee" mid-lease without your agreement. You can dispute this by submitting the Landlord-Tenant Complaint Form (CF01).
  • Request for Repair Notice:
    When used: If a lease addendum makes you responsible for repairs you believe are the landlord’s duty, use a written notice to formally request the repair. While no state-mandated form exists, you can use the guidelines provided in the Delaware Tenant’s Rights Handbook.[3]
    Example: Your lease addendum says you must replace broken windows, but this may contradict state maintenance laws. Reference the handbook and send a written request.
Always keep a copy of every signed addendum and official communication in case you need it during a dispute or for reference later.

What Should I Do Before Signing a Lease Addendum?

  • Review every clause—don’t rush or feel pressured to sign on the spot.
  • Ask for clarification if any language is unclear; verbal promises should be put in writing.
  • Check if the addendum changes or limits your rights under Delaware law.
  • Contact a renter advocacy group or use Delaware’s official tenant resources for help interpreting documents.

FAQ: Lease Addendums in Delaware

  1. Can a landlord add addendums after I have already signed my lease?
    In most cases, addendums must be agreed upon by both parties. A landlord cannot require new terms mid-lease without your signed consent.
  2. Do I have to pay fees listed in an addendum?
    Only if you voluntarily signed the addendum and it does not violate Delaware law. Unreasonable or surprise fees can be challenged in court.
  3. What if an addendum conflicts with Delaware’s landlord-tenant laws?
    If an addendum contradicts state law, the law takes priority. Tenants can dispute illegal clauses in Justice of the Peace Court.
  4. How can I officially dispute a lease addendum?
    You can file a complaint using the Landlord-Tenant Complaint Form with the Justice of the Peace Court and seek assistance from Delaware’s Office of the Attorney General.
  5. Are mold or smoke-free addendums legally binding?
    If you agree and sign, most are binding, as long as they do not contradict state health or safety laws.

Conclusion: Protect Yourself by Staying Informed

  • Read all lease addendums in detail before signing—never agree to unclear or unfair clauses.
  • Official tenant resources and courts can help resolve disagreements over lease terms.
  • State law always overrides any private rental agreement clauses that restrict your rights.

Reviewing the details and resources above can help you avoid mistakes and protect your rights as a Delaware renter.

Need Help? Resources for Renters


  1. Delaware Residential Landlord-Tenant Code
  2. Delaware Justice of the Peace Court: Landlord Tenant Cases
  3. Delaware Attorney General: Tenant’s Rights Handbook
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights USA

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.