Before you start the house hunting process, a Mortgage Pre-Approval is an important step you can take to save time and make the search a lot smoother. It determines the home price you can afford under the new stress test, this helps you budget hor your home search. With a pre-approval you will also be able to lock in a mortgage rate for a maximum period of 120 days in case the rates go up during your home search process. - THIS SERVICE IS ABSOLUTELY FREE
It is however important for you to understand that a Pre-Approval does not guarantee a Mortgage Approval. At the Pre-Approval Stage - most of the banks review just the application and dont verify the documents.