Craig Landlord-Tenant Lawyer, Missouri

A meeting of the minds. An agreement is made when two people reach an understanding about a particular issue, including their obligations, duties and rights. While agreement is sometimes used to mean contract -- a legally binding oral or written agreement -- it is actually a broader term, including understandings that might not rise to the level of a legally binding contract.

A person or entity (such as a corporation) that must be included in a lawsuit in order for the court to render a final judgment that will be just to everyone concerned. For example, if a person sues his neighbors to force them to prune a tree that poses a danger to his house, he must name all owners of the neighboring property in the suit.

An unforeseen and uncontrollable event that excuses a party to a contract from performing his or her duties under that contract. For example, a landlord can break a lease if the property she agreed to rent accidentally burns down before the tenants move in.

The causing of harm by disrupting something that belongs to someone else -- for example, interfering with a contractual relationship so that one party fails to deliver goods on time.

The building of a structure entirely or partly on a neighbor's property. Encroachment may occur due to faulty surveying or sheer obstreperousness on the part of the builder. Solutions range from paying the rightful property owner for the use of the property to the court-ordered removal of the structure.

A member of the governing board of a corporation, typically elected at an annual meeting of the shareholders. Directors are responsible for making important business decisions -- especially those that legally bind the corporation -- leaving day-to-day management to officers and employees of the corporation. For example, a decision to borrow money, lease an office or buy real property would normally be authorized by the board of directors. However, in the small business world, where it is common for owners to be directors, officers and employees simultaneously, distinctions dividing the roles and responsibilities of these groups are often blurred.

A form of property owned by a married couple. If a couple moves to a community property state from a non-community property state, property they acquired together in the non-community property state may be considered quasi-community property. Quasi-community property is treated just like community property when one spouse dies or if the couple divorces.

A doctrine that prevents a defendant from re-litigating an issue after it has been lost. For example, if your neighbor sues you for putting up a fence on his land and the court rules that your fence extends beyond your property line, you can't later file your own lawsuit seeking a declaration that the property line is incorrectly drawn.