June 26, 2025

The 15 most common mistakes when terminating without notice in tenancy law — and how to avoid them

15 typical landlord termination mistakes — and how to avoid them! Attorney Depenbrock for tenancy law in Telgte explains. Better, sure, cancel.

Lawyer Guido Depenbrock

With several years of experience as a lawyer, I have professional expertise and the necessary knowledge to effectively solve your legal concerns.

Introduction: Why are termination errors so common?

Many landlords underestimate how strictly courts review the formalities for immediate cancellations. Even minor mistakes make the termination ineffective — and as a result, the tenant stays in the apartment, resulting in expensive lawsuits.

Overview: The 15 most common mistakes and their consequences

  1. Cancellation not in writing/no original signature
  2. Cancellation is made by e-mail, fax or telephone
  3. Termination is addressed to the wrong addressee (e.g. only one tenant, instead of all)
  4. Not all landlords sign
  5. Termination subject to one condition (“if... then...”)
  6. Period of notice or reason for termination wrongly calculated/stated
  7. Dismissal not sufficiently justified or blanket allegations
  8. Not all breaches of duty listed/only partially documented
  9. No warning attached (if required)
  10. The original power of attorney is missing in the case of representation/property management
  11. Receipt of notice cannot be proven (no letter of objection or witness)
  12. In the alternative, ordinary notice of termination given in due time
  13. Reference to the right of objection (§ 574 BGB) is missing/is incorrect
  14. Incorrect date due to cancellation period
  15. No objection to the tacit contract extension in accordance with Section 545 BGB

Sources of error in detail:

Not terminated in writing?

The termination is void! Therefore, always: paper form with original signature and proof!

General justification?


Describe every breach of duty exactly (include a copy of the date, time, witnesses, warning)

Forgot the warning?

Immediate termination without warning is only permitted in exceptional cases

Representative without authority?

Always include an original power of attorney, otherwise the tenant can refuse “due to lack of power of representation” (provided that he declares this immediately)

Was tun bei Fehlern? – Korrektur und Nachbesserung:
  • Fehler entdeckt? Sofort neue, korrekte Kündigung einreichen (inklusive aller Pflichtangaben & Anlagen).
  • Wurde die Kündigung wegen fehlender Originalvollmacht im Vertretungsfall zurückgewiesen: zügig mit beigefügter Originalvollmacht erneut zustellen – Fristen im Blick behalten!
  • Liegt die erste (fehlerhafte) Kündigung bereits Wochen zurück? Ab Zugang der neuen Kündigung läuft die gesetzliche/vertragliche Kündigungsfrist neu. Eine rückwirkende Heilung der ersten Kündigung und der damit in Gang gesetzten Frist erfolgt nicht
  • Offene Fragen oder Streitigkeiten? Beanspruchen Sie bei Ungewissheiten stets anwaltliche Hilfe, um weitere Verzögerungen zu vermeiden.
  • Alle Schriftstücke & Zustellungen sorgfältig dokumentieren: Nur so können Sie den Zugang und Korrekturschritte im Streitfall nachweisen.
Tipp: Korrigierte Kündigungen so schnell wie möglich zustellen. Schnelles Handeln sichert Ihre Rechte!

Practice advice: How to prevent mistakes

  • Have every termination checked by a specialist — small mistakes are often expensive.
  • Always adapt patterns individually.
  • Include all deadlines, receipts, warnings, such as copies.
  • Secure access (registered letter, witness).
  • Make copies of the signed letter of termination for a later process!

Practical tip for landlords in Telgte and Münsterland

If in doubt, do not give up hastily! It's better to get advice beforehand than to fail later.
In the Telgte area and Münsterland — but also beyond these borders — lawyer Depenbrock will be happy to assist you personally — for a legally secure and enforceable termination.

Cover image: Photo by CJ Dayrit upon Unsplash

There is no alternative to your right.

Together, we will enforce it.

Book your initial legal consultation now and work with me to secure an ally for your rights.

In emergencies (judicial search order, arrest, urgent applications, etc.), we are available 24/7 at the number with the ending -24

(Use this number for genuine emergencies only
- use the number ending with 02504 98799-0 for general inquires)

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 Rechtsanwalt Depenbrock als Schwarzweißaufnahme
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