There are many reasons why you can not just shop the rate on a mortgage. If you base your mortgage decision only on rate you could get WACC’ed! I borrow this phrase from America’s Most Opinionated Mortgage Broker (Brian Brady). He has a great explanation of this on his blog here.
Everyone needs to know their blended interest rate before they make a mortgage decision. After you read Brian’s analysis and you want to know your WACC give me a call or contact Brian directly!