Because divorce involves legal questions, every divorcing spouse should know and understand his or her legal rights before agreeing to a settlement. One way for a mediating spouse to do this is to work with a consulting lawyer who knows and understands mediation. For more information, see Lawyers and Divorce Mediation.
Doing some independent legal research is another option. It's best to do this as early in the process as possible, then follow up with a legal review before signing the settlement agreement that comes out of the mediation.