I'll boil it down to this:
Does an "active male JW" who is married "have the right to stand in the way" of an "inactive and divorced mother-in-law"; by not allowing her daughter (his wife), on the grounds of the divorce and bad association, to see her mother? The mother-in-law was seen with a disfellowshipped person and is now divorced from her husband by secular law.
I hope that makes sense