Boyce Land Use & Zoning Lawyer, Virginia

Principles of international law so fundamental that no nation may ignore them or attempt to contract out of them through treaties. For example, genocide and participating in a slave trade are thought to be jus cogens.

A request made to a court, asking it to dismiss a lawsuit on the grounds that no legal claim is asserted. For example, you might file a demurrer if your neighbor sued you for parking on the street in front of her house. Your parking habits may annoy your neighbor, but the curb is public property and parking there doesn't cause any harm recognized by the law. After a demurrer is filed, the judge holds a hearing at which both sides can make their arguments about the matter. The judge may dismiss all or part of the lawsuit, or may allow the party who filed the lawsuit to amend its complaint. In some states and in federal court, the term demurrer has been replaced by 'motion to dismiss for failure to state a claim' (called a '12(b)(6) motion' in federal court) or similar term.

In terms of copyright protection, either the person who creates the work, the person or business that pays another to create the work in an employment context or the person or business that commissions the work under a valid work for hire contract. For example, a songwriter may write a song, but if he is employed by a company to do so, the company is the author of that song for copyright purposes.

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 right to use another person's real estate for a specific purpose. The most common type of easement is the right to travel over another person's land, known as a right of way. In addition, property owners commonly grant easements for the placement of utility poles, utility trenches, water lines or sewer lines. The owner of property that is subject to an easement is said to be 'burdened' with the easement, because he or she is not allowed to interfere with its use. For example, if the deed to John's property permits Sue to travel across John's main road to reach her own home, John cannot do anything to block the road. On the other hand, Sue cannot do anything that exceeds the scope of her easement, such as widening the roadway.

A contract giving written permission to use an invention, creative work or trademark. A license provides a way to make money from your invention or creative work without having to manufacture and sell copies yourself. By licensing an invention or work to a company, you get money (often in the form of royalties) in return for allowing the company to use, produce and sell copies of your invention or work in the marketplace.