Tenants facing claims for unpaid rent or damage often wonder whether a landlord must try to re‑rent a unit before recovering losses. In New Brunswick, the duty to mitigate means landlords must take reasonable steps to reduce financial harm after a tenant breaches the lease — for example by advertising, showing the unit, and accepting comparable tenants. This guide explains what mitigation looks like in practice, how the Residential Tenancies Tribunal treats mitigation evidence, which official forms you may encounter, and practical steps tenants can take to respond to claims. The language is plain and tenant-focused so you can prepare documentation, meet deadlines, and protect your rights in New Brunswick housing disputes.
What the duty to mitigate means in New Brunswick
When a tenant fails to pay rent or leaves early, landlords cannot simply sit idle and claim the full loss. Courts and tribunals expect landlords to take reasonable, documented steps to re-rent the unit and reduce losses. Reasonable steps usually include advertising the unit, showing it to prospective tenants, and accepting comparable applicants. Evidence of these steps is often decisive at hearings before the Residential Tenancies Tribunal [1].
Landlord obligations after tenant default
- Advertise and re-rent the unit promptly, within a reasonable time.
- Apply rent from a replacement tenant to reduce the original tenant's arrears.
- Serve written notices and keep copies of all forms and communications.
- Keep evidence of condition, repairs, viewings, and expenses to show mitigation efforts.
How tribunals weigh mitigation and relevant law
Tribunals look for proof that the landlord made reasonable attempts to re-rent. The assessment considers local law, rental market conditions, and timing; New Brunswick decisions refer to the Residential Tenancies Act and tribunal practice standards when evaluating mitigation efforts [2]. In hearings, panels commonly expect contemporaneous records such as advertisements, a log of showings, emails with applicants, and receipts for repairs intended to put the unit back into rentable condition.
Practical tenant steps and where to find guidance
If a landlord claims unpaid rent or damages, gather records early: payment receipts, the lease, dated photos, and any messages about viewings or notices. You can review the roles and duties of both sides in the official guidance on obligations; for plain explanations see Obligations of Landlords and Tenants: Rights and Responsibilities Explained. Landlords preparing or pursuing legal action should also review best practices in What Landlords Need to Know Before Taking Legal Action Against Tenants.
FAQ
- What does "duty to mitigate" mean for tenants?
- The duty to mitigate means a landlord must take reasonable steps to reduce financial loss after a tenant breaches the lease, such as advertising and re-renting the unit.
- If the landlord re-rents quickly, can they still claim my unpaid rent?
- No. If the landlord re-rents the unit for the same or a similar amount, rent received from the replacement tenant is usually credited against any claim for unpaid rent.
- How can I challenge a landlord's mitigation evidence?
- Bring your own records to the hearing: dated photos, receipts, proof of payments, messages about showings, and any advertisement copies to show whether the landlord acted reasonably.
How-To
- Collect evidence: payment records, lease, dated photos, emails, and ads showing mitigation efforts.
- File an application or response with the Residential Tenancies Tribunal using the official forms and include your evidence.
- Attend the hearing prepared to explain gaps and highlight why landlord steps were or were not reasonable.
- If the landlord re-rented, check the accounting: ensure rent from the new tenant was applied to any claimed arrears.
Help and Support / Resources
- Residential Tenancies Tribunal - Government of New Brunswick
- Residential Tenancies Act (New Brunswick)
- Forms and applications - Service New Brunswick
