Aries,
Leverage doesn’t mean blackmail. I am thinking of a particular case in which one of the gedolim advised an acquaintance of mine to hold off on the get until she allowed him to have visitation with his children.
B”H, several years later, both are remarried with wonderful families, and they are able to be civil to each other when dealing with their children. He even ultimately got an apology from her father for the way he was treated during the whole process.
I really wasn’t trying to “get” you to say anything. 🙂