One cat found dead on the property had suffered from starvation and dehydration, prosecutors said.
“For someone who calls herself an animal rescuer, there’s a fundamental responsibility to protect and care for the animals entrusted to her,” District Attorney Nathan Hochman said in a statement.
Hochman said De Anda allegedly continued taking in animals despite repeated warnings and citations from the county and an inability to properly care for the growing number of animals.
Los Angeles County Animal Care and Control Director Marcia Mayeda said some of the animals could not be saved because of the severity of their illnesses and injuries.
“Our teams have worked tirelessly to stabilize them, provide the medical care they needed, and help them recover,” Mayeda said.