My question involves name change laws in the State of: Idaho
My ex wife, divorced in April, took her maiden name back at time of divorce. Now for "tax, schooling, and travel" reasons is asking me to let her change our female childrens(4 and 6) names to maiden-surname. I told her no. She said she doesnt need my consent and can "serve" me. Do I have options or rights to say no. We currently have joint legal and physical custody and I am involved.
Thanks

