(a) The office shall have access to residents and shall, in accordance with commission rules, investigate and resolve complaints made by or on behalf of residents.
(b) The state long-term care ombudsman shall ensure that each ombudsman designated under Section 101A.255 who investigates complaints has received proper training and has been approved by the office as qualified to investigate complaints.
(c) The office shall investigate a grievance made against a representative in accordance with commission rules and inform the person who made the grievance of the outcome of the investigation when the investigation is concluded.
(d) A long-term care facility shall cooperate with an investigation conducted by the state long-term care ombudsman or a representative, including an ombudsman designated under Section 101A.255.