In Oklahoma, the liability of a lessor who undertakes repair of premises depends on whether the lessor is an active or passive repairer. An active repairer is one who has assumed the responsibility of maintaining the premises, and is liable for any injury or damage resulting from improper repair, while a passive repairer is one who merely inspects the premises and makes general repairs, but does not assume responsibility for the condition of the premises. Active Repairer: An active repairer is liable for any injury or damage resulting from improper repair, negligence in the performance of repair duties, or failure to exercise reasonable care in the performance of repair duties. Active repairers must be aware of and comply with applicable building codes and safety regulations. Passive Repairer: A passive repairer is not liable for any injury or damage resulting from improper repair, negligence in the performance of repair duties, or failure to exercise reasonable care in the performance of repair duties. However, a passive repairer may be liable for any injury or damage resulting from a failure to inspect the premises and make general repairs. Overall, lessors who undertake repair of premises in Oklahoma are liable for any injury or damage resulting from improper repair, negligence in the performance of repair duties, or failure to exercise reasonable care. The liability will depend on whether the lessor is an active or passive repairer.