In March 2021, a woman in the D.C. area put her house on the market and got 88 bids including 76 all-cash offers and 15 from people who hadn't bothered to visit the property in person. The offers just kept coming, she told CNN at the time. I'm thinking, This is just out of control. That frothy, oozing-over-the-top market has been over for a few months now, and new data suggest that we might be entering a...