unfair and deceptive practices; reliance on false signature could not be shown where party was unaware of the signature; trial court erred in concluding that claims for unfair and deceptive practices failed where party was sold duplicate warranties; remand required to determine the reasonableness of any reliance on duplicate warranties; trial court did not abuse its discretion in refusing to allow amendment of counterclaim during trial; trial court erred by failing to grant motion for directed verdict on defective workmanship claim because no expert testimony supported claim that workmanship was defective, as required; attorney's fees issue was not preserved for appellate review where no ruling was obtained on the request prior to appeal being noticed; trial court did not abuse its discretion in directing the order of closing arguments, if issue was preserved for appellate review