The N1 Window for 2027 Opens October 3: Serve-Date Math for the 1.9% Year
Ontario's 2027 rent increase guideline is 1.9% — and the first day a landlord can serve an N1 for a January 1, 2027 increase is October 3, 2026, exactly 90 days out. This is the timing piece: the serve-date math for any 2027 effective date, the 12-month rule check, what the effective date controls (including which year
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