Washington Findings and Conclusions on Non-Parent Custody Petition is a document that must be filed in Washington State when a non-parent is seeking to gain legal custody of a child. The document includes the court’s findings concerning the suitability of the non-parent to care for the child, the best interests of the child, and any other relevant factors. The court’s conclusions regarding the non-parent’s petition are also included. The types of Washington Findings and Conclusions on Non-Parent Custody Petition include: 1. Best Interests of the Child Findings 2. Suitability of Non-Parent Findings 3. Best Interests of the Child Conclusions 4. Suitability of Non-Parent Conclusions 5. Final Findings and Conclusions.