The 31-day threshold is counted in consecutive nights per guest. One guest who books 35 nights in the same cottage falls under residential lease law; two back-to-back guests (15 nights + 20 nights) stay in short-term rental territory.
Short-term covers every platform (Airbnb, Vrbo, Booking, Expedia) and every direct channel. Reserver.ca operates exclusively in short-term rentals across its 84+ managed Quebec cottages.
Don't confuse with "mid-term rental" (a commercial label, not a legal term, used for 1–6 month stays — typically snowbirds and corporate relocations). Legally, any stay of 31 days or more is a residential lease.