MYTH 1: Domestic violence is rare among custody litigants.

FACT: Studies show that 25-50% of disputed custody cases involve domestic violence.

Published Newsletter Vol. 4, 2006 by ABA Commission On Domestic Violence

10 Custody Myths and How To Counter Them

by American Bar Association Commission On Domestic Violence

Any attorney who represents clients in custody matters will recognize at least some of the following unfounded clichés about domestic violence and custody. Here are some resources that the ABA Commission on Domestic Violence  provides for practitioners to use when representing victims of domestic violence.
http://www.stopfamilyviolence.org/info/custody-abuse/statistics/10-custody-myths-and-how-to-counter-them