D.P. v. G.J.P. DP D.P. D.P. DP Michael E. Bertin is a partner at the law firm of Obermayer Rebmann Maxwell & Hippel. He is co-author of the book "Pennsylvania Child Custody Law, Practice, and Procedure." Bertin is a fellow of the American Academy of Matrimonial Lawyers, a former chair of the family law section of the Philadelphia Bar Association, the current co-chair of its custody committee, and holds the officer position of first vice chair of the family law section of the Pennsylvania Bar Association. Contact him at 215-665-3280 or [email protected].