Subletting and Assignment Disputes: Alberta LTB

Dispute Resolution & LTB Alberta 3 min read · published March 29, 2026 Flag of Alberta

Subletting or assigning your lease can be a practical option for tenants in Alberta who need to move or share housing, but disputes often arise over permission, rent responsibility, screening new occupants, or alleged breaches. This article explains how Alberta’s dispute process works, what evidence tenants should collect, and when to file with the Residential Tenancy Dispute Resolution Service (RTDRS)[1]. It covers common conflict scenarios—denied consent, unpaid rent after assignment, and unauthorized sublets—and gives clear steps for gathering records, communicating with landlords, and preparing an application. Readers will learn practical tips to protect their renter rights, avoid escalating conflicts, and seek timely resolutions under Alberta’s tenancy rules.

Understanding subletting and assignment in Alberta

Subletting means you rent all or part of your unit to someone else but remain legally responsible under the original lease; assignment transfers the tenancy to a new tenant who takes over lease obligations. Most written leases state whether subletting or assignment is allowed and often require landlord consent. Tenants should read their lease and Alberta tenancy rules, including the Residential Tenancies Act (Alberta)[2], to understand responsibilities and possible remedies.

Ask for written permission and keep all responses for your records.

Common dispute scenarios

  • Notice of denied consent or refusal to approve a new occupant.
  • Unpaid rent or rent arrears that appear after an assignment or sublet.
  • Unauthorized sublet that creates tenancy breaches or habitability concerns.
  • Disputes over tenant screening, references, or return of security deposits.
Keep copies of all lease clauses that mention subletting or assignment.

How Alberta resolves these disputes

Alberta uses the Residential Tenancy Dispute Resolution Service (RTDRS) to hear many tenancy disputes including those about subletting and assignment. The RTDRS accepts applications, offers mediations, and issues binding orders in many cases. You can file an application and find the required forms and instructions on the official RTDRS pages[1]. If a dispute involves complex legal questions or large financial claims, RTDRS or the courts may direct specific next steps.

Respond to any landlord notices promptly to preserve your options for dispute resolution.
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What evidence tenants should collect

  • Signed lease agreements, addenda, and any written permission or refusals from the landlord.
  • Photographs or videos showing unit condition before and after any sublet or assignment.
  • All written communications—texts, emails, letters—about consent, screening, or payments.
  • Receipts, bank records, or proof of rent payments that show who paid and when.
Organized, dated evidence increases clarity and credibility at a hearing.

Practical steps before filing a dispute

Before applying to RTDRS, try to resolve the issue directly: explain the situation in writing, propose reasonable terms for screening a replacement, and ask for written consent or refusal. If you need help finding replacement occupants, you can consider online listing tools such as Edmonton and Calgary rental listings to advertise responsibly while continuing documented communication with your landlord. If informal resolution fails, gather your evidence and prepare to file with RTDRS following the official guidance and forms[3].

Always keep a dated copy of every message you send or receive about the sublet or assignment.

FAQ

Can my landlord refuse a sublet or assignment?
Landlords can include lease clauses requiring consent for sublets or assignments; however, disputes over unreasonable refusal can be brought to RTDRS for review where a neutral decision-maker can consider the facts and lease terms.
Am I still responsible if I assign the lease and the new tenant doesn’t pay?
Unless your landlord agrees in writing to release you, the original tenant can remain legally responsible for rent if the new occupant fails to pay; RTDRS can hear claims to recover unpaid rent or release the original tenant in appropriate circumstances.
How quickly should I act if there’s a dispute?
Act promptly: collect evidence, follow any notice deadlines in your lease or from the landlord, and consider filing with RTDRS soon after attempts to resolve the problem fail to avoid losing remedies.

How-To

  1. Collect relevant documents: lease, messages, receipts, photos.
  2. Communicate with your landlord in writing and try to reach a written agreement.
  3. Review your lease and Alberta’s Residential Tenancies Act to understand obligations and possible remedies.
  4. File an RTDRS application with supporting documents if informal resolution fails.
  5. Prepare for a hearing by organizing evidence and a clear timeline of events.

Key Takeaways

  • Keep written records of all communications about sublets or assignments.
  • Try to resolve matters directly and get any agreement in writing.
  • Use RTDRS as a formal option when disputes cannot be settled informally.

Help and Support / Resources


  1. [1] Residential Tenancy Dispute Resolution Service (RTDRS) - Government of Alberta
  2. [2] Residential Tenancies Act (Alberta) - Queen's Printer
  3. [3] File an RTDRS application - Government of Alberta

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Sarah Mitchell
Sarah Mitchell

Senior Housing Rights Researcher, Tenant Rights Canada

Sarah has spent over a decade researching tenant legislation across Western Canada, with a particular focus on British Columbia and Alberta. She holds a certificate in Housing Policy from Simon Fraser University and has contributed to several housing advocacy organizations.