The number of U.S properties considered “equity rich” has increased by nearly 1.4 million units from a year ago according to the First Quarter 2017 U.S. Home Equity &Underwater Report produced by ATTOM Data Solutions. Now, more than 13.7 million homes, or about a quarter of U.S. residential properties fall into the “equity rich” category, which means the combined loan amount secured by the property is 50 percent or less than its estimated market price.