Slate Run Family Law Lawyer, Pennsylvania

A conflict in personalities that makes married life together impossible. In a number of states, incompatibility is the accepted reason for a no-fault divorce. Compare irreconcilable differences; irremediable breakdown.

A court procedure by which an adult becomes the legal parent of someone who is not his or her biological child. Adoption creates a parent-child relationship recognized for all legal purposes -- including child support obligations, inheritance rights and custody.

A special kind of property ownership that's only for married couples. Both spouses have the right to enjoy the entire property, and when one spouse dies, the surviving spouse gets title to the property (called a right of survivorship). It is similar to joint tenancy, but it is available in only about half the states.

In some states, a type of marriage in which couples can become legally married by living together for a long period of time, representing themselves as a married couple and intending to be married. Contrary to popular belief, the couple must intend to be married and act as though they are for a common law marriage to take effect -- merely living together for a long time won't do it.

The inability of a spouse to engage in sexual intercourse with the other spouse. In some states, physical incapacity is a ground for an annulment or fault divorce, assuming the incapacity was not disclosed to the other spouse before the marriage.

An agreement made by a divorcing couple regarding the division of property, custody and visitation of the children, alimony or child support. The agreement must be put in writing, signed by the parties and accepted by the court. It becomes part of the divorce decree and does away with the necessity of having a trial on the issues covered by the agreement. A divorce agreement may also be called a marital settlement agreement, marital termination agreement or settlement agreement.

One person's approval of another's activities, constituting a defense to a fault divorce. For example, if a wife did not object to her husband's adultery and later tries to use it as grounds for a divorce, he could argue that she had condoned his behavior and could perhaps prevent her from divorcing him on these grounds.

A situation in which the partners in a married couple live apart. Spouses are said to be living apart if they no longer reside in the same dwelling, even though they may continue their relationship. A legal separation results when the parties separate and a court rules on the division of property, such as alimony or child support -- but does not grant a divorce.