Episode 130: BIFF for Co-parent Communication: Your Guide To Difficult Co-parent Texts, Emails and Social Media Posts, with author Bill Eddy, Esq. BIFF for Co-parent Communication: Your Guide To Difficult Co-parent Texts, Emails and Social Media Posts, with author Bill Eddy, Esq. Bill Eddy, Esq., LCSW, Mediator, who will demonstrate a more successful way of communicating with a high conflict co-parent.