People with mental disabilities, such as an intellectual or developmental disability (I/DD) or mental illness, seeking community-based rental housing experience significant discrimination from landlords and property managers. People with mental illness experienced higher rates of adverse treatment than people with I/DD. Further, during telephone queries about the availability of an advertised unit, people with mental disabilities were more likely to be encouraged to look at a different unit than the one advertised, which could indicate intention to steer people with mental disabilities toward specific buildings or areas within rental complexes. Discrimination was more likely at every stage . . .