Estate planning is important to your heirs. Whether they are family members, friends or charities that are important to you. With proper planning, you can give your heirs the maximum amount they are entitled to and avoid the long delays of probate. The best way to do this is by using a living trust. However, different kinds of trusts exist. You can choose from irrevocable trusts and revocable trusts. There are certain advantages to an irrevocable trust.