Where an owner has fully divested himself of all interest in immovable property through a sale, and where the purchaser has paid the full purchase price and cleared all encumbrances preventing transfer, with only the formal registration of transfer remaining outstanding, the court will recognize the purchaser's real interest in the property and prevent attachment of that property by creditors of the seller, notwithstanding that legal title remains registered in the seller's name at the Deeds Registry. In such circumstances, the purchaser's proprietary interest in the process of completion takes precedence over a judgment creditor's claim for an unrelated debt, and the court will apply equitable principles rather than adopt a purely technical approach based on registered title.