Some companies operate under the name 'We Buy Houses' and purchase homes directly from the owners. Their advertisements featuring phrases like 'Sell Your House Fast' or 'We Buy Houses for Cash' can be found on postcards or signs. While most of these businesses are reliable, it's crucial to verify their legitimacy by checking if they have a website (a sign of a reputable company) or if they are registered with the state. Genuine companies should be able to explain their purchase process, offer clear terms, and respect your rights as a seller.