I have 3 children, 2 with complex medical issues. I was divorced this year and could no longer care for the 2 children with medical issues, so they are in medical foster care. Our parenting time agreement allowed for the father to 'nest' at my house with the children while they were in my custody, but are no longer here. Is our parenting time agreement null and void because the two children are in medical foster care? Father relocated several months ago and hasn't followed parenting time agreement but now want to enforce that he bring the children to my house for his parenting time. I have said no, but know that we need to renegotiate the agreement as well, but need to know that the old agreement is not enforceable either.