What is an Estoppel Certificate in Commercial Real Estate?

By Shunker Chugh lawyer at Merovitz Potechin LLP on Monday June 29, 2026

In the world of commercial real estate, the estoppel certificate is sometimes viewed as just another piece of closing paperwork. However, for landlords, tenants, and lenders alike, it is a vital document that “stops” or estops a party from later claiming a set of facts different from those signed in the certificate. In essence, an estoppel certificate functions as a certified statement of facts at a given point in time. It minimizes uncertainty by confirming the lease terms that a buyer or lender can rely upon.

The Core Purpose of an Eestoppel Certificate: Verification and Reliance

The core purpose of the estoppel certificate centers on verification and reliance. When a landlord sells a property or arranges for new financing, the buyer or lender needs to confirm that the rent roll is accurate, and the leases are in good standing. The certificate requires the tenant to confirm key terms such as the commencement and expiry dates of the lease, the current monthly rent, any prepaid amounts, and the status of the security deposit. Most importantly, it confirms that there are no ongoing defaults by either the landlord or the tenant. If any issues or defaults are uncovered, it gives the buyer or lender a chance to review the lease more closely or opens the door for the parties to negotiate a solution. By signing, the tenant provides a guarantee that the purchaser or lender can rely on.

Common Pitfalls and Strict Deadlines

Because parties often request these certificates during the pre-closing rush, several pitfalls can emerge. One common issue is tenants inadvertently signing broad statements that modify leases or waive existing rights. Accuracy is equally critical regarding defaults. If a landlord is currently failing to meet a specific obligation, a tenant who signs a “clean” estoppel certificate stating there are no defaults may lose their leverage to have those issues addressed later. Furthermore, timing is a constant pressure point. Most commercial leases in Ontario require a tenant to return a signed estoppel certificate within a strict window. Failing to meet this deadline can place the tenant in breach of their lease.

The Landlord’s Certificate Alternative

When a tenant cannot sign before the deadline, parties may rely on a Landlord’s Certificate as an alternative. In this version, the landlord certifies the status of the lease to the lender or purchaser themselves. While this provides a baseline of comfort, it is generally considered a second-best option. Unlike a tenant-signed estoppel, a Landlord’s Certificate does not bind the tenant. Therefore, the tenant could still contest lease terms or claim defaults later. This creates a significant secondary risk for the landlord: if the information in the estoppel certificate proves to be inaccurate, the purchaser or lender may seek recourse directly against the landlord for any losses or liabilities that arise from that misinformation.

Why Precision is Paramount in Signing an Estoppel Certificate

Ultimately, whether you are drafting, reviewing, or signing an estoppel certificate, precision is paramount. What seems like a routine administrative task is, in reality, a powerful tool for risk mitigation. Ensuring that every detail, such as square footage or the last month’s rent, is captured accurately can prevent significant legal and financial headaches after the deal has closed.

The content on this website is for information purposes only and is not legal advice, which cannot be given without knowing the facts of a specific situation. You should never disregard professional legal advice or delay in seeking legal advice because of something you have read on this website. The use of the website does not establish a solicitor and client relationship. If you would like to discuss your specific legal needs with us, please contact our Real Estate Team and one of our lawyers will be happy to assist you.