The potential Costa Hawkins repeal coming to the California ballot in November is causing a wave of concern throughout the industry, with many concerned that it will pass and impede investment and development in Los Angeles. The Apartment Association of Greater Los Angeles took a public stand against the measure, which is officially called the Affordable Housing Act, and says that support is from a particular group led by Michael Weinstein, president of the AIDS Foundation, that has been active in fighting for more affordable housing options in Los Angeles.