Form library · Ontario Landlord and Tenant Board

Form LTB-COS: Certificate of Service

Records how and when the person served a document in an LTB proceeding (who served it, on whom, and the method).

Official source

Form file	https://tribunalsontario.ca/documents/ltb/Other%20Forms/Certificate%20Of%20Service.pdf
Version	2022-04-01
Last checked by Router.law	2026-10-19

Official source page

Only the person can do

The person who served the document signs the certificate. Router.law does not sign anything.

Fill it with Router.law

REST (API key):

curl -s https://router.law/v1/forms/LTB-COS/fill \
  -H "Authorization: Bearer $ROUTERLAW_KEY" -H "Content-Type: application/json" \
  -d @profile-request.json

MCP (https://router.law/mcp):

fill_form(form_id="LTB-COS", profile={...})

The questions to ask and the input schema come from get_form_spec("LTB-COS"). See the developer docs and MCP setup. Plain text: /forms/on-ltb-ltb-cos.txt.

Router.law spec status: draft.