Dudley Estate Lawyer, Missouri

To deliberately prevent someone from inheriting something. This is usually done by a provision in a will stating that someone who would ordinarily inherit property -- a close family member, for example -- should not receive it. In most states, you cannot completely disinherit your spouse; a surviving spouse has the right to claim a portion (usually one-third to one-half) of the deceased spouse's estate. With a few exceptions, however, you can expressly disinherit children.

An ownership interest in the minerals contained in a particular parcel of land, with or without ownership of the surface of the land. The owner of mineral rights is usually entitled to either take the minerals from the land himself or receive a royalty from the party that actually extracts the minerals.

A trust designed to save on estate tax. The trust principal is preserved for the trust maker's grandchildren, with his or her children receiving only income from the trust. Because the children (the middle generation) never legally own the property, it isn't subject to estate tax at their death. See generation-skipping transfer tax.

A trust that allows couples to reduce or avoid estate taxes. Each spouse puts his or her property in an AB trust. When the first spouse dies, his or her half of the property goes to the beneficiaries named in the trust -- commonly, the grown children of the couple -- with the crucial condition that the surviving spouse has the right to use the property for life and is entitled to any income it generates. The surviving spouse may even be allowed to spend principal in certain circumstances. When the surviving spouse dies, the property passes to the trust beneficiaries. It is not considered part of the second spouse's estate for estate tax purposes. Using this kind of trust keeps the second spouse's taxable estate half the size it would be if the property were left directly to the spouse. This type of trust is also known as a bypass or credit shelter trust.

Irrevocable trusts designed to save on estate tax. There are several kinds; with all of them, you keep income from trust property, or use of that property, for a period of years. When the trust ends, the property goes to the final beneficiaries you've named. These trusts are for people who have enough wealth to feel comfortable giving away a substantial hunk of property. They come in three flavors: Grantor-Retained Annuity Trusts (GRATs), Grantor-Retained Unitrusts (GRUTs) and Grantor-Retained Income Trusts (GRITs).