Miguel C. Keberlein spent his entire career at LAF, until now.This month, Keberlein was named executive director of the Legal Aid Society of Metropolitan Family Services, which provides legal services to low-income families in areas including domestic violence, elder abuse, housing and consumer issues and human trafficking.He replaces Karina Ayala-Bermejo, who is now president and CEO of the nonprofit Instituto del Progreso Latino.Keberlein said he’s honored to serve in the nation’s second-oldest legal aid …