A tenant can give notice of termination of lease (regardless of the lease end date) within 10 days after receiving a rent increase. (moneysense.ca)
In many cases, the reasonable notice of termination under the common law is often extraordinarily higher than the statutory minimums. (minkenemploymentlawyers.com)
Some will convert to month to month if you don't give notice of termination. (rocketlawyer.com)