A Forestry Commission consisting of three persons appointed by the Mayor for a three-year term shall have authority to hear all disputes involving the enforcement of the provisions of this chapter and to issue recommendations thereon to the City Administrator, who shall then render a decision. The City shall not assess the expense of pruning, trimming or removing a tree to a property owner without first giving at least 10 days’ written notice to the property owner. A property owner shall have until the end of the 10-day period in which to submit a written request for a public hearing before the Forestry Commission on assessment cases, and on all other disputes shall submit the hearing request within 30 days of the date of the action in dispute. The property owner shall be entitled to receive a copy of the recommendation of the Forestry Commission to the City Administrator and a copy of the City Administrator’s subsequent decision.