My ex snuck a line into the divorce decree that says I can only have visitation in the custodial home (hers). She also will not allow my mother or any of my family to see my son. What can I do?
You have no alternative but to go back to court and get the wording changed. This is the kind of thing a judge will usually have no problem with altering. Unless she has an outstanding reason, visitation in her home is unreasonable.
My ex and I have joint custody. Does he have a right to say where the kids are staying when I go on vacation?
If the children are going with you, no, not unless the parenting plan says he does. If the children [i]aren't>/i> going with you, then yes, he has some say on where the children will reside during that time. This is a generally accepted provision in most joint custody situations.
My spouse is not a legal step-parent (there was no adoption) but he raised the boy he calls his son. He divorced the boy's mother and now she won't let him see the boy. Does he have any rights?
Unfortunately, he has no virtually rights by default. He will need to petition the court vigorously for visitation. He will need to show that he was part of an 'established custodial environment', but it may be a difficult task to convince the court to grant any visitation or parenting time.