A. The owner of the land on which a trespass as described in § 55.1-2835 was committed shall have the right, within 90 days after the discovery of such trespass and the identity of the trespasser, to notify the trespasser and to appoint an experienced timber estimator to determine the amount of damages. For the purposes of determining damages, the value of the timber cut shall be calculated by first determining the value of the timber on the stump. Within 30 days after receiving notice of the alleged trespass and of the appointment of such estimator, the alleged trespasser, if he does not deny the fact of trespass, shall appoint an experienced timber estimator to participate with the one already so appointed in the estimation of damages. If the two estimators cannot agree, they shall select a third person, experienced and disinterested, who shall make a decision that shall be final and conclusive and not subject to appeal. The estimation of damages and the rendition of statement must be effected within 30 days from the receipt of notice of appointment, by the trespasser, of an estimator. If the alleged trespasser fails to appoint an estimator within the prescribed time, or to notify within such time that the allegation of the fact of trespass is disputed, the estimator appointed by the injured party may make an estimate, and collection or recovery may be had accordingly.