My wife and I are in contract for a house that was just appraised by our lender. The report notes that the "estimated remaining economic life" is 25 years. What does this mean, exactly? Does this mean, in the appraiser's opinion, the house will not hold its worth after 25 years? And does this estimate allow for renovations/fixes that might be made in the upcoming years? Any help and clarification would be greatly appreciated. Many thanks!