All payments by the buyers under bond for deed contracts of property then or thereafter burdened with a mortgage or privilege, shall be made to some bank authorized to do business in this state, which shall have been designated as the escrow agent for all parties interested in the contract. The payments shall be distributed by the escrow agent between the seller and the holder of the mortgage or privilege, in such proportion as the secured obligation shall bear to the purchase price in order to insure the buyer an unencumbered title when all payments have been made as provided in the bond for deed contract.
La. R.S. § 9:2943