An estate agent is a person or business that arranges the selling, renting, or managing of properties and other buildings. An agent that specialises in renting is often called a letting or management agent. Estate agents are mainly engaged in the marketing of property available for sale, and a solicitor or licensed conveyancer is used to prepare the legal documents. In Scotland, however, many solicitors also act as estate agents, a practice that is rare in England and Wales. "Estate agent" remains the current title for the person responsible for the management of one group of privately owned, all or mostly tenanted properties under one ownership. Alternative titles are factor, steward, or bailiff, depending on the era, region, and extent of the property concerned. The term originally referred to a person responsible for managing a landed estate, while those engaged in the buying and selling of homes were "House Agents", and those selling land were "Land Agents". However, in the 20th century, "Estate Agent" started to be used as a generic term. An estate agent is roughly synonymous with the United States term real estate broker. Estate agents need to be familiar with their local area, including factors that could increase or decrease property prices. e.g. if a new road or airport is to be built this can blight houses nearby. Equally, the closing of a quarry or improvement of an area can enhance prices. In advising clients on an asking price, the agent must be aware of recent sale prices (or rental values) for comparable properties. In the United Kingdom, residential estate agents are regulated by the Estate Agents Act 1979 as well as the Consumers, Estate Agents, and Redress Act 2007. In September 2012 CPRs (consumer protection regulation) was introduced which now regulates the residential sales process. For residential property, there are also a few trade associations for estate agents, INEA The Independent Network of Estate Agents and NAEA Propertymark (formerly known as the National Association of Estate Agents).