LegalSpeak: Arizona Law on Best Interests of the Child—§ 25–403
The court shall determine custody, either originally or on petition for modification, in accordance with the best interests of the child. The court shall consider all relevant factors, including:
The wishes of the child’s parent or parents as to custody.
The wishes of the child as to the custodian.
The interaction and interrelationship of the child with the child’s parent or parents, the child’s siblings and any other person who may significantly affect the child’s best interest.
The child’s adjustment to home, school and community.
The mental and physical health of all individuals involved.
Which parent is more likely to allow the child frequent and meaningful continuing contact with the other parent.
Whether one parent, both parents or neither parent has provided primary care of the child.
The nature and extent of coercion or duress used by a parent in obtaining an agreement regarding custody.
Whether a parent has complied with chapter 3, article 5 of this title.
Whether either parent was convicted of an act of false reporting of child abuse or neglect….
In a contested custody case, the court shall make specific findings on the record about all relevant factors and the reasons for which the decision is in the best interests of the child.