Seanor Family Law Lawyer, Pennsylvania

A person, usually a relative, who appears in court on behalf of a minor or incompetent plaintiff, but who is not a party to the lawsuit. For example, children are often represented in court by their parents as 'next friends.'

Adulthood in the eyes of the law. After reaching the age of majority, a person is permitted to vote, make a valid will, enter into binding contracts, enlist in the armed forces and purchase alcohol. Also, parents may stop making child support payments when a child reaches the age of majority. In most states the age of majority is 18, but this varies depending on the activity. For example, in some states people are allowed to vote when they reach the age of eighteen, but can't purchase alcohol until they're 21.

A child born to your spouse before your marriage whom you have not legally adopted. If you adopt the child, he or she is legally treated just like a biological offspring. Under the Uniform Probate Code, followed in some states, a stepchild belongs in the same class as a biological child and will inherit property left 'to my children.' In other states, a stepchild is not treated like a biological child unless he or she can prove that the parental relationship was established when he or she was a minor and that adoption would have occurred but for some legal obstacle.

Consensual sexual relations by a married person with someone other than his or her spouse. In many states, adultery is technically a crime, though people are rarely prosecuted for it. In states that have retained fault grounds for divorce, adultery is always sufficient grounds for a divorce. In addition, some states alter the distribution of property between divorcing spouses in cases of adultery, giving less to the 'cheating' spouse.

A divorce obtained in a different state or country from the place where one spouse resides at the time of the divorce. As a general rule, foreign divorces are recognized as valid if the spouse requesting the divorce became a resident of the state or country granting the divorce, and if both parties consented to the jurisdiction of the foreign court. A foreign divorce obtained by one person without the consent of the other is normally not valid, unless the nonconsenting spouse later acts as if the foreign divorce were valid, for example, by remarrying.

The legal union of two people. Once a couple is married, their rights and responsibilities toward one another concerning property and support are defined by the laws of the state in which they live. A marriage can only be terminated by a court granting a divorce or annulment. Compare common law marriage.

A person who completes all the requirements to legally adopt a child who is not his or her biological child. Generally, any single or married adult who is determined to be a 'fit parent' may adopt a child. Some states have special requirements, such as age or residency criteria. An adoptive parent has all the responsibilities of a biological parent.