Harvard Divorce & Family Law Lawyer, Illinois

Secret cooperation between two people in order to fool another. Collusion was often practiced by couples before no-fault divorce in order to make up a grounds for divorce (such as adultery). By fabricating a permitted reason for divorce, colluding couples hoped to trick a judge into granting their freedom from the marriage. But a spouse accused of wrongdoing who later changed his or her mind about the divorce could expose the collusion to prevent the divorce from going through.

Papers filed with a court clerk by the plaintiff to initiate a lawsuit by setting out facts and legal claims (usually called causes of action). In some states and in some types of legal actions, such as divorce, complaints are called petitions and the person filing is called the petitioner. To complete the initial stage of a lawsuit, the plaintiff's complaint must be served on the defendant, who then has the opportunity to respond by filing an answer. In practice, few lawyers prepare complaints from scratch. Instead they use -- and sometimes modify -- pre-drafted complaints widely available in form books.

A term that most often refers to a lawsuit -- for example, 'I filed my small claims case.' 'Case' also refers to a written decision by a judge -- or for an appellate case, a panel of judges. For example, the U.S. Supreme Court's decision legalizing abortion is commonly referred to as the Roe v. Wade case. Finally, the term also describes the evidence a party submits in support of her position -- for example, 'I have made my case' or ''My case-in-chief' has been completed.'

A court procedure that dissolves a marriage and treats it as if it never happened. Annulments are rare since the advent of no-fault divorce but may be obtained in most states for one of the following reasons: misrepresentation, concealment (for example, of an addiction or criminal record), misunderstanding and refusal to consummate the marriage.

Overdue alimony or child support payments. In recent years, state laws have made it difficult to impossible to get rid of arrearages; they can't be discharged in bankruptcy, and courts usually will not retroactively cancel them. A spouse or parent who falls on tough times and is unable to make payments should request a temporary modification of the payments before the arrearages build up.

The payment made to a lawyer for legal services. These fees may take several forms: hourly per job or service -- for example, $350 to draft a will contingency (the lawyer collects a percentage of any money she wins for her client and nothing if there is no recovery), or retainer (usually a down payment as part of an hourly or per job fee agreement). Attorney fees must usually be paid by the client who hires a lawyer, though occasionally a law or contract will require the losing party of a lawsuit to pay the winner's court costs and attorney fees. For example, a contract might contain a provision that says the loser of any lawsuit between the parties to the contract will pay the winner's attorney fees. Many laws designed to protect consumers also provide for attorney fees -- for example, most state laws that require landlords to provide habitable housing also specify that a tenant who sues and wins using that law may collect attorney fees. And in family law cases -- divorce, custody and child support -- judges often have the power to order the more affluent spouse to pay the other spouse's attorney fees, even where there is no clear victor.

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.

(1) A group of separate individuals or companies that come together to undertake an enterprise or transaction that is beyond the means of any one member. For example, a group of local businesses may form a consortium to fund and construct a new office complex. (2) The duties and rights associated with marriage. Consortium includes all the tangible and intangible benefits that one spouse derives from the other, including material support, companionship, affection, guidance and sexual relations. The term may arise in a lawsuit if a spouse brings a claim against a third party for 'loss of consortium' after the other spouse is injured or killed.