Can the father loses visitation if the father is intimidating the kids and asking them questions about the mothers personal life?

Q: asking the kids a lot of questions about mother 

A: David’s answer: I would not say that, in itself, would defeat his claim for custody. Moreover, the proof of this would depend on how old the children are & whether they ultimately report that to their lawyer or to the Judge. But if the proof is there, then this would indeed be a factor against the father in his custody case. -- David Bliven, Bronx Child Custody lawyer (www.blivenlaw.net)