Exclusive Right of Sale Listing
A written agreement between an agent and a property owner stating that the owner will pay a commission to the agent if the property is sold during a specific time period--whether or not the agent is responsible for the sale.

Building Line or Setback
Distances from the ends and/or sides of the lot beyond which construction may not extend. The building line may be established by a filed plat of subdivision, by restrictive covenants in deeds or leases, by building codes, or by zoning ordinances.

Co-operative (Co-op)
An arrangement in which a corporation made up of residents owns a building. The buyer owns a proprietary lease, rather than real property, and a corresponding number of shares in the corporation.