No estate in lands can be created by way of contingent remainder; but every estate created by any will or conveyance, which might have taken effect as a contingent remainder, has the same properties and effect as an executory devise.
Structure Code of Alabama
Chapter 4 - Conveyances and Creation of Estates.
Article 8 - Remainders and Executory Devises.
Section 35-4-210 - Definitions.
Section 35-4-211 - Vested or Contingent Remainders Generally.
Section 35-4-212 - Contingent Remainder in Lands Equivalent to Executory Devise.
Section 35-4-213 - Remainder Limited After Death Without Heirs or Issue.