Legal Question in Family Law in California

Actually, if she takes you back to court, she may be doing you a favor. The reason for this is that you current level of child support will continue until there is an order to modify it. Unfortunately, it is unlikely to be reduced by 1/3 and will be recalculated mainly based on yours and hers current income and percentage of custody. If she doesn't take you to court you should file a Request for Order that your support be reduced pursuant to the terms of the current order.

Your fiancee's income is not a factor the court uses to calculate child support for a child from another relationship.

I agree with the previous answers and write just to clarify. Your contract is essentially worthless. Unless the court can and does legally find that your correct amount of support is 2/3 of what it was, the court must calculate and award the correct amount of support based on the law and you and your ex's current income, taxation, etc. You need to make current income and expense disclosures and then have the Dissomaster calculation done. If you then both accept that number you can file a stipulated order to modify the support and you are done. If you disagree, you go back to court. Until one of you files for a modification, you still owe the full amount, so don't delay. As for your fiancee's income, Ms. Kock is right that it does not count at all. HOWEVER, once you remarry, it does count to the extent it affects your tax situation. It does NOT affect how much income is considered available for support, however, since she cannot be ordered to contribute her income to support your children from a previous relationship.