Mortgage rates have taken a noticeable dive, quickly approaching their lowest levels in over a month. Driven by a surge in end-of-quarter bond buying and declining oil prices, the average top-tier 30-year fixed rate fell to 6.55%. This unexpected dip offers a prime window of opportunity for first-time buyers looking to boost their purchasing power and current homeowners eyeing a refinance. Because the market moves fast, preparation is key gathering your financial documents and tracking your credit score now can help you successfully lock in a lower rate before the market shifts again.