A PMHNP is the clinical director of an assertive community treatment (ACT) team that has recently hired a certified peer support specialist who has personal lived experience of recovery from schizophrenia. During the first team meeting, a staff psychiatrist expresses concern that the peer specialist should not have access to clinical documentation because she is "a former patient, not a clinician." The peer specialist reports to the PMHNP that she feels marginalized and uncertain about her role boundaries. The PMHNP needs to address team integration while maintaining appropriate role clarity. Which of the following best reflects evidence-based practice for integrating peer support into the treatment team?