Many waiting lists have preferences. Applicants who qualify for waiting list preferences will receive assistance before applicants who do not. Applicants who do not qualify for preferences will usually have a longer wait to receive assistance. Examples of preferences that may appear on a waiting list include the elderly, persons with disabilities, and local residents. More information about preferences can be found here. It is important to know that preferences are not requirements. Applicants may still apply, even if they do not qualify for any preferences.
Sometimes, an apartment or entire community may only be available for tenants of a specific demographic, such as elderly or disabled persons.