Nate was looking to purchase his very first home sometime within the next six months. He contacted a realtor who told him to go to a lender to get pre-approved for a mortgage. This is a common practice, but there is a BIG PROBLEM and it is one that could easily cost you lots of money. For Nate, it cost him almost two thousand dollars because he went beyond the 90-days and he was at 719, costing him lots of money. It can easily happen to any homebuyer.