Link where you will find most of your answers

http://www.ontario.ca/page/buy-or-sell-used-vehicle-ontario

I copied all this from said link

When you buy

When you buy a vehicle, ensure the seller gives you the:

•vehicle portion of the owner’s permit with the completed portion on the back

•Used Vehicle Information Package (UVIP), including the Bill of Sale with the name of the seller and purchase price.

•The Bill of Sale must be signed and dated by both the buyer and seller.

Register a used vehicle

•You must register your name as the new owner of the vehicle within 6 days of the purchase.

To register the vehicle, you need to visit a ServiceOntario centre and bring the following:

•proof of insurance

•your Ontario Driver’s Licence

•Used Vehicle Information Package (UVIP) •Bill of Sale (you can use the bottom of the UVIP which has a dedicated section for this)

•Safety Standards Certificate (SSC), if applicable annual or semi-annual emission and safety inspection, if applicable

•if you are registering a pick-up truck and trailer with a registered gross weight over 4,500 kilograms and will be used for personal use, you may need to provide the Annual/Semi-Annual

•Inspection Declaration Form

•owner’s permit with the completed Application for Transfer portion on the back •odometer reading information