One more thing to add to my previous advise. In mediation it can be very hectic, lots of notes, calculations, and back and forth discussions. My mediation was scheduled for 7.5 hours and we were down to the wire when we settled.
Read, read, and read the final documents SLOWLY. Make sure EVERY single thing you've agreed to that has a timeline, that the DAY of the month is specified, and the terms for resolution if he defaults.
I missed a date being listed and instead of payments in the beginning of the month he was able to make it the LAST day of the month. My attorney and I missed that ONE line. Effectively it made me wait 7 weeks for the first payment from the last payment he had made. Now he pays me for EVERYTHING on the LAST possible day he can, and was a huge oversight of my attorney.
Remember if you have kids, the devils in the details. He will insist everything under the sun constitutes coming out of your "child support".
Ask for college support to be reserved. Consider any activities outside of school, band, field trips, sports, or anything that kids may end up doing that costs money to be designated as to whom pays and what percentage. Ask for your child's car insurance, vehicle maintenance, car tabs, repairs and such to be divided between you. Passport costs, ID costs, yearbooks, graduation costs, prom costs. Remember cell phone bills, and driver's education costs for permits and classes. Anything you don't specify will likely become your problem to pay for. Clothing although usually paid from child support can be crippling when you have to change wardrobes for seasons or your child gains or loses weight several times a year.
I asked for life insurance with me as beneficiary to cover the settlement money he owed me. You could ask for a policy with you as beneficiary for any and all child support or college support that would be owed until they turn 18 in the event of his death. This protects your kids.
Make sure you have clearly defined consequences if he fails to follow the agreement. Example: after 30 days of being late you can get a judgement against him. If the consequences are in black and white he will be less likely to default.
[This message edited by Muggle at 7:11 PM, September 9th (Monday)]