When Patricia arrived in West Marin from Central America with her toddler son, Osvaldo, she moved into a crowded household already stretched by rent, food and gas. Her mother, Dulce María, was overjoyed to be reunited with her daughter and to help raise her grandson. All three are identified in a new report by pseudonyms. 

The family’s hopes for the boy—that he regain his health after arriving malnourished, learn English, socialize with other children…