Mine is leased and the MOT is saying it will be clawed back unless 3 years of ownership - however a fellow Ontario owner has traded in two leased Tesla's prior to the three year mark and has not had either rebate clawed back.
In my case, I am buying the car out of the lease and selling it back to the dealer. I wonder if that transaction takes away the status of the car being leased, and converts it to a purchased car, even if briefly. In any case, the Lawrence location is about the have a beautiful low-mileage loaded P85D available shortly in A+ condition should that interest a forum member!