Wording for 3rd party Waiver


I want to draw up a seperation agreement that has a 3rd party waiver in it. The Seperation Agreement example on this website seems very good, but doesnt container a 3rd party waiver. How should I word that in the seperation agreement so that it is legally binding.

I have seen this question asked many times but never answered, so if Ms. Fritts could answer, how much would it cost to have you draw up a seperation aggreeemnt for me based on my situation.