What changes is who is buying. An investor buyer often welcomes an existing tenant and the rent that comes with them, while an owner-occupant buyer typically wants the home vacant, so the tenancy shapes your buyer pool before it shapes anything legal.
You cannot end a lease early solely to make the sale easier. Proper notice periods under the Residential Tenancies Act, 2006 still apply, and a buyer who wants vacant possession has to build that timeline into the offer rather than expect an immediate eviction.
Knowing your buyer pool before you list changes how the sale is marketed. Get your hand-reviewed valuation from Joel Dyck.