; (iv) professional development for high-quality prekindergarten program staff regarding migratory children and homelessness among families with young children; and (v) in serving homeless children, collaboration with local educational agency liaisons designated under section 722(g)(1)(J)(ii) of the McKinney-Vento Homeless Assistance Act ( 42 U.S.C. 11432(g)(1)(J)(ii) ), and local homeless service providers. (4) Accessible comprehensive services A description of how the eligible local entity plans to provide accessible comprehensive services, described in section 112(9)(I) , to the children the eligible local entity serves. Such description shall provide information on how the entity will— (A) conduct a data-driven community assessment in coordination with members of the community, including parents and community organizations, or use a recently conducted data-driven assessment, which— (i) may involve an external partner with expertise in conducting such needs analysis, to determine the most appropriate social or other support services to offer through the eligible local entity’s on-site comprehensive services to children who participate in high-quality prekindergarten programs; and (ii) shall consider the resources available at the school, local educational agency, and community levels to address the needs of the community and improve child outcomes