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The Kansas statutory code is not that specific. So for many nuances, the Court will fill in the blanks in the decree. If the decree is not specific, then either party can file a Motion for Clarification and ASK the Court on how the Judge believes that the decree should be applied to the unforeseen situation.
Now, I would have to look at the decree's verbiage. I can tell you right now that the Judge will go off the plain meaning of the verbiage, what the Judge thinks was the parties' intention, AND what the Judge believes to be equitable. So if the verbiage applies only to the SALE of the property, then the tenant costs are not included (arguably). If not, that means the decree is ambiguous, and a clarification is needed.
Either of you can file for clarification. Or, you can agree on terms without getting the court involved - perhaps he will want to avoid more litigation and would agree to a split/cost that he could live with to avoid a clarification hearing.
On a related topic, I would not think that the costs of tenancy would be considered an asset. However any income WOULD BE.
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