Dear Creditnet: I'm trying to buy a house this summer and my credit scores are just a bit too low to qualify for the best possible interest rate. My mortgage broker is suggesting we do something called a "rapid rescore" in order to quickly improve my credit before we close, but I don't understand how this works. Can a rapid rescore actually improve my credit scores, and how can I be sure that it will help me get approved for the loan? - Max S. from OR