A report detailing the condition and estimating the remaining useful life of each element of the project proposed for conversion: roofs, foundations, exterior paint, paved surfaces, mechanical systems, electrical systems, plumbing systems, including sewage systems, swimming pools, sprinkler systems for landscaping, utility delivery systems, central or community heating and air conditioning systems, fire protection systems including automatic sprinkler systems, alarm systems, or standpipe systems, structural elements and the appliances or facilities referred to in PGMC § 23.29.040(g). Such report shall be prepared by an appropriately disinterested licensed contractor or architect or by a registered civil or structural engineer other than the owner. For any element whose useful life is less than five years, a replacement cost estimate shall be provided;