When I create a will in Florida do I have to name all my children if I'm lonely naming one of my children as 100% beneficiary.

It is best to name all of your children, identify them as your children and then include language how you recognize you have other children whom you have not forgotten but have chosen to disinherit for certain reasons and that you are leaving everything to just one child. It is best to have an attorney draft your last will to ensure that everything is done right. All the best.