Should the quarter of the disputed property be bought at the old appraised value or at the new actual price, taking into consideration the lengthy duration of the case and the negligence of the first lawyer?

If the son gifted the plot to his mother, and then wanted to buy it from her heirs, and the sale took place with mutual consent, then the previously agreed-upon price is to be considered, and the delay in legal registration does not affect it. If the sale did not take place, then it is up to the heirs to agree on the price at the time of signing the contract. However, if he did not gift it to her, then the plot belongs to the son and the mother is merely an agent. The matter is referred to the Sharia court in case of a lack of mutual consent.