Terrance Observation

I have observed visitation with dad in December, January, and February.
The children interact well with their father when he engages. Terrance stands back and watches the children mostly while they play. He engages only when asked and when the children become restless.
The father does well at keeping the children under control when they become restless and start ruff housing.
My worry about returning home to dad is his health. He has serious back issues which limits him mobility. Terrance has asked me once about if the children were returned home to him could they go to their maternal grandmothers because he is extreme pain and is limited in his mobility. Their last visitation was at a park and he stated that he had to sit on the bench
and watch the children play because of his back.
My second worry is dad does not have his own place and lives with multiple family members. I told him to return the children home to that home I would need to do a back ground check on all the family members in the home. I have not received any of their personal identification to do the background checks on the members in the home.
Although dad is not the perpetrator, he has not engaged in any services at this time.