Like other states, Illinois has a law which determines how a deceased person's property will be divided if the person did not leave a will.
The law also applies if the person did leave a will, but the will does not get admitted to probate or later gets invalidated in a will contest. Finally, the law will apply if a person has a valid will, but the will does not cover all of the person's property.
It is important to remember that the law will not apply to property which by law does not pass through probate. Property held in trust, life insurance proceeds, retirement accounts like 401(k)s, joint bank accounts and jointly held real estate.
...