A Southern California couple at the center of a child abuse investigation that involves 21 young children, some of whom were birthed by different surrogate mothers, engaged in unethical and illegal ...

Perla said she was told that Silvia Zhang, 38, and Guojun Xuan, 65, of Arcadia, had only one child and were seeking a sibling ...

He represented surrogate mother Mary Beth Whitehead, in the landmark 1987 New Jersey court case known as "Baby M," which ultimately invalidated surrogacy laws in that state.