The issue presented is whether the plaintiff’s failure to furnish the owner an account of the labor or materials supplied “as often as once in thirty days” as required by RSA 447:8 bars his recovery. It appears that no work was done nor materials furnished within the thirty days previous to giving the notice to the owner under RSA 447:5 and 6, nor thereafter. The plaintiff sought only to collect the money due him at the time he gave the notice. RSA 447:6 specifies that upon giving notice as here after the work is done and materials supplied the “lien shall be valid to the extent of the amount then due ... to the contractor.” (Emphasis supplied). The account required by RSA 447:8 would have been an empty formality here because no work had been done nor materials furnished within the thirty days previous to the giving of notice or thereafter. It is too well established to require citation that the law does not require a useless act. No prejudice has resulted from the failure to comply with RSA 447:8 as the parties were given all the information essential to the protection of their rights. In these circumstances, it appears that RSA 447:8 is inapplicable and the plaintiff having complied with all other essential provisions of RSA ch. 447 relative to notice has preserved the lien which his undertaking created and which is valid to the extent of the amount due the defendant at the time of the plaintiff’s notice. Boulia-Gorrell Lumber Co. v. Company, 84 N. H. 174, 176. The order is
Judgment for the plaintiff.
Wheeler, J., took no part in the decision; the others concurred.