Resolve occupancy with the borough before committing to space
Montréal's occupancy-permit guidance addresses commercial, industrial, and professional uses, including relevant home-office activity. Follow the procedure for the borough and premises involved. Do not assume an administrative office and a patient-facing clinic have identical requirements.
Prepare a description of what will happen at the address. Include staff, public attendance, professional activity, equipment, and any planned alterations. A landlord's description of suitable office space is not a substitute for the municipal review of your actual use.
Keep the permit question separate from professional authority. Municipal approval does not establish that a doctor can treat Quebec patients, that a charge is permitted, or that the business has met health-information obligations. Track each decision with its own source and responsible adviser.
Make the public address accurate. If it is an administrative location, avoid presenting it as a clinic where patients can arrive for assessment. Check directory listings, appointment reminders, and map links so they do not create a different expectation from the service the team can deliver.