Form library · Ontario Landlord and Tenant Board
Form T4: Tenant Application - Landlord did not Comply with an Agreement to Increase the Rent Above the Guideline
A tenant's application asking the LTB to order the landlord to return all or part of a rent increase above the guideline, because the landlord broke an N10 agreement to do repairs, buy equipment or add a service.
Official source
| Form file | https://tribunalsontario.ca/documents/ltb/Tenant%20Applications%20%26%20Instructions/T4.pdf |
|---|---|
| Version | 2022-04-01 |
| Last checked by Router.law | 2026-10-19 |
Only the person can do
- Complete the payment information yourself. Router.law never handles payment details.
- If you need accommodation under the Ontario Human Rights Code to take part, tick Part 2 of the request form and explain what you need. Router.law leaves this to you.
- Sign the application in Part 3 (page 3) as the applicant or representative.
Fill it with Router.law
REST (API key):
curl -s https://router.law/v1/forms/T4/fill \
-H "Authorization: Bearer $ROUTERLAW_KEY" -H "Content-Type: application/json" \
-d @profile-request.json
MCP (https://router.law/mcp):
fill_form(form_id="T4", profile={...})
The questions to ask and the input schema come from
get_form_spec("T4"). See the developer
docs and MCP setup. Plain text:
/forms/on-ltb-t4.txt.
Router.law spec status: draft.