Nearly 6% of all mortgages were delinquent nationwide in the fourth quarter and foreclosure starts were at the highest levels ever, according to a report issued this morning by the Mortgage Bankers Association. Getting a refinance mortgage loan is a smart move for any homebuyer. This is especially true if the interest rates are low. In the world of finance, interest rates directly affect the way mortgage rates behave. So if the interest rates are low, then mortgage rates will also be low.