No landlord or agent or employee of a landlord shall be liable to a tenant or a tenant's licensee or invitee for death, personal injury, or property damage proximately caused by any defect or disrepair on the premises absent the landlord's:
(1) Agreement supported by consideration or assumption by conduct of a duty to undertake an obligation to maintain or repair the leased premises; and
(2) Failure to perform the agreement or assumed duty in a reasonable manner.