511. Measure of damages in claim by purchaser or vendor.

The proper measure of damages is the difference between what the property would have been worth1 had it been in the condition in which the valuer represented it2 and its actual value3, which should have been reported to the party who relied on the valuer's report4. This remains the case even where the purchaser, acting reasonably to cut his losses, sells the property for more than he paid before the valuer admits liability or is found liable5. If, despite the negligent valuation, the purchaser paid no more than the property was worth in its actual condition, only nominal damages