You can put a provision in your will that you want your sister to have custody of your daughter in the event that you pass away, however, absent your fiance agreeing to give custody to your sister at the time of your death, your fiance, as the natural father, would retain custody of your daughter. Courts presume that the surviving parent is fit and, absent extraordinary circumstances, will ignore any contrary custody designation in a will.
Answered on Oct 25th, 2012 at 10:39 PM