The practice of operating business anonymously is prevalent in many California industries, proponents of the bill said. In Oakland, after city officials condemned a dilapidated building rented out to low-income immigrant families, the city attorney's office spent more than a year investigating and combing through hundreds of city code enforcement records to find the owners of the building, said Suzie Dershowitz, who worked on the case at the time. The city eventually found and successfully sued the landlords, who owned more than 130 properties in the city through a network of LLCs and corporations. The investigation would have had taken half a day of work if Durazo's bill was law at the time, she added.