Code of Alabama
Article 9 - Procedure for Determining Just Compensation.
Section 18-1A-154 - Separation of Issues of Compensation and Apportionment.

The circuit court or jury shall first determine the total compensation as between the plaintiff and all defendants claiming an interest in the property. The circuit court shall determine the apportionment of the amount awarded in a subsequent proceeding. After the amount of compensation has been determined, the plaintiff may withdraw from further participation in the trial.