If it affects the applicant's actual schedule, presence, or intent, yes — describe it plainly alongside the employment and credential documents. It is not typically core TN evidence, but omitting a material fact can create more difficulty than including it.
Give the reviewer the complete picture
Provide the employment and qualification documents as the core of the file, and add a short, factual note about any active farm, lease, or family business and who manages it. Do not create an elaborate narrative around the property — a clear, honest disclosure is more useful than an extended explanation that raises more questions than it answers.
Organize the TN packet around proof of citizenship, the profession's required credential, and evidence of the arranged professional activity. That employment evidence is an employer letter or contract; it should identify duties, duration, compensation, and the employing entity clearly enough to test the USMCA occupation. Add a concise note about the Ontario operation only when it explains travel, availability, or ongoing responsibilities. The common mistake is allowing farm records to crowd out the documents that prove TN eligibility, or submitting a vague offer that never connects daily tasks to the listed profession. Preserve current licences and evaluations where the profession requires them.
Hypothetical example: A veterinarian from the Strathroy-Caradoc area accepts a defined role with a U.S. animal-health employer while retaining a small sheep lease managed by a cousin. Her file leads with citizenship evidence, veterinary credentials, and a detailed employer letter. A one-page lease explanation identifies the manager and schedule. It does not include unrelated years of farm invoices that obscure the professional engagement being requested.