California Code, Family Code - FAM § 9327

If the prospective adoptive parent is a provider of board and care, treatment, habilitation, or other services to persons with developmental disabilities, or is a spouse or employee of a provider, and seeks to adopt an unrelated adult with developmental disabilities, the regional center for the developmentally disabled notified pursuant to Section 9326 shall file a written report with the court regarding the suitability of the proposed adoption in meeting the needs of the proposed adoptee and regarding any known previous adoption by the prospective adoptive parent.