There is no central source for information about residential property for rent in the Dallas area.
The properties you find on the major internet real estate search engines such as Zillow and Trulia use the North Texas Real Estate Information Network, usually called the MLS, as their source. That is much of what is available but many properties are never listed and others are listed on their own web sites. CraigsList is one of the largest rental databases. It is free so some property