For simplicity, the parties will be referred to in the capacity in which they appeared in the trial court. The parties to this appeal entered into a contract whereby the a;;ellant was to construct a home for the appellees. Problems developed between the parties which resulted in an action by the plaintiffs-appellees to recover damages frm the defendant-appellant for defective workmanship in the construction and to remove a cloud from their title resulting from a lien filed by the defendant. The defendant filed a counterclaim against the plaintiffs and a cross-claim against Shirley G. Hughes. Shirley Hughes was trustee under a deed of trust executed by the plaintiffs to secure payment of a promissory note in the amount of $80,000, payable to Elizabethton Savings and Loan Association.