When a person dies and a formal probate estate must be opened in Florida, the probate court will appoint a person to be in charge of the estate administration. In Florida, this person is known as a "Personal Representative." In other states, it is known as an "Executor" or "Administrator." In Florida, no one is authorized to act as Personal Representative until a probate court issues an Order appointing the Personal Representative. Simply being designated in the Will is not enough--an Order appointing the Personal Representative is required.
Not uncommonly, we have clients come into the office after a loved one has died and ask for some assistance. Their request is often simple...for example: "How do I access Mom's bank account now that she's gone? Her Will says I'm supposed to get it. Can I take the Will to the bank and get it transferred over to my name?" Unfortunately, it's not that simple.
If parents with minor children die, a Guardian will be appointed to raise and care for the children. Parents have the right to designate who will be appointed Guardian--so long as the parents do so before they die. If they do not, then a court will make the decision.