Ambiguous or undefined. In the State of Alabama, there is no law that specifically enforces surrogacy contracts. There is no law determining whether or not a surrogate may be compensated beyond expenses.
Generally and practically speaking, intended parents are able to enter into contracts for gestational surrogacy. Adoption via court order after birth is generally required, yet there may be exceptions for intended parents who are also the genetic parents. See ALA Code Title 26 - Adoption Law