Estate debts that are attributable to identifiable property or to the production of its fruits or products are charged to that property and its fruits and products. Also, when the decedent has encumbered property to secure a debt, the debt is presumptively charged to that property and its fruits and products. The presumption may be rebutted, by a preponderance of the evidence that the secured debt is not attributable to the encumbered property.
La. C.C. § 1422