Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Joan A. Halpern-Duncan, Practice Areas Family Law Attorneys. is located in the city of Altadena, the state of California. Attorney legal address 3345 Rubio Crest DrAltadena, CA, 91001-1527. For more information, please call (626) 791-9140 Your comments* (not for publishing) * — Required information Joan A. Halpern-Duncan ← View details 3345 Rubio Crest DrAltadena, CA, 91001-1527, Altadena, California (626) 791-9140