The hearings shall be conducted by the Zoning Hearing Board, or the Zoning Hearing Board may appoint any member or an independent attorney as a Hearing Officer. The decision, or, where no decision is called for, the findings, shall be made by the Zoning Hearing Board; however, the appellant or the applicant, as the case may be, in addition to the Borough, may, prior to the decision of the hearing, waive decision or findings by the Zoning Hearing Board and accept the decision or findings of the Hearing Officer as final.