(b) Upon the tenant's vacating of the dwelling unit, the landlord may not retain any part of the security deposit collected under chapter 831 or seek payment from the tenant for any condition, defect or damage that was noted in the preoccupancy walk-through checklist. Such walk-through checklist shall be admissible, subject to the rules of evidence, but shall not be conclusive, as evidence of the condition of the dwelling unit at the beginning of a tenant's occupancy in any administrative or judicial proceeding.