John Lewis Every Child Deserves a Family Act This bill prohibits discrimination on the basis of sexual orientation, gender identity, marital status, or religion in the provision of child welfare programs and services by entities receiving federal funding. The Department of Health and Human Services (HHS) must provide technical assistance to help states follow this requirement, including (1) guidance for bringing state laws into compliance, (2) developing training to increase cultural competency related to social identity, and (3) training for judges and attorneys involved in child welfare cases, among other supports. Additionally, HHS must establish the National Resource Center on Safety, Well-Being, Placement Stability, and Permanency for LGBTQ Children and Youth Involved with Child Welfare Services to provide training, technical assistance, and guidance to applicable state and local agencies and service providers. Further, the Religious Freedom Restoration Act may not be the basis for challenging the application or enforcement of this bill. The Government Accountability Office must study and report on states' compliance with the requirements of the bill no later than three years after enactment.