If the two oldest have attained the age of 18 years, they can do whatever they want regardless of what their father may say or tell them. As for any children younger than 18 years, their father would have the absolute right to take them with him and make decisions for them. It may be helpful for your sister to prepare a Designation of Pre-Need Guardian, a Will, and other testamentary documents that provide for what she wishes for her children if they are still minors when she passes, but that is not generally going to be upheld against the wishes of the father. If he is truly unfit, it may be preferable for you to approach him regarding taking the kids and see if he will agree. If not, you may need to get the Dept. of Children and Families involved. Consult with an attorney to discuss the specifics of your situation and your options.
Answered on May 19th, 2017 at 8:42 AM