Fast Pre-Approval Form Why a Pre- Approval form? - 5 Top reasons why having a pre Approval letter is the best preliminary move when looking to buy a Home: Mortgage Lingo 1. To estimate how much money a lender will let you borrow on a home. 2. To know and feel comfortable with what your monthly payment will be! 2. To know which property you should target. 3. To have an edge on other buyers that do not have a pre Approval letter! 4. To have a Real Estate professional that will work with you. 5. Best rates are early in the search. Get the lowest rate! Lock it in, then Search!