A partition and exchange agreement is a legal contract between divorcing couples that outlines the terms of their property division and distribution. Pre arranging the terms of property division is typically done with a prenup.It would be more accurate to simply call this value the "total fill"rather than the "percentage fill. In the event spouses do not have a marital property agreement, it is possible to maintain their separate property. Equivalent) assigned to a DoD component IAW the terms of an exchange agreement who perform official duties for the DoD component.