Now, you're not so sure. Baltimore Sun - That adjustable-rate mortgage may have seemed ideal when you got it. Its low "teaser" interest kept the monthly payment affordable. Oh, sure, you knew that someday it would reset - but by that time your house's value would ... The officer's job is to help you process your application for a mortgage. To see if you're suitable a certain mortgage product, they will look into your personal credit account and start the approval process for your transaction.