The Location Manager is not usually provided by the studio and is not considered part of the regular above or below the line crew. The film commission of larger, usually urban, states tend to already have a number of locations inspected. They create large databases for easy access when a film is ready to film in a given area. Location Managers are often assigned by the film commission of the area, but if you can you should always try to get your own. This way you can be sure that you have someone who will actually make the best choices for your film. Even if they are a part of the film commission try to work with the same people repeatedly so that you can develop a relationship with them.