What to Bring to Divorce Mediation

As a domestic relations mediator, I'm often asked "what should I bring to mediation?"  The short answer is, "whatever documents you think you need related to custody, child support and/or property division."  This is not intended to be flip.  However, you know the facts of your own case better than I do--and the level of accord and amicability between yourself and your spouse or partner.  Specifically, what do you think he or she will need to see to accept your claims about salary, your debt, etc.?