No. The reason requires a considerably lengthier response.
Of the various ways to argue against the possibility of a slave-contract, a powerful approach involves the inalienability of the human will. Free will is a defining aspect of man’s nature. From the instant of awareness, he chooses. Sometimes the available options are limited or utterly unappealing but even the refusal to choose constitutes an act of choice.
The idea of a slave-contract is what Ayn Rand called “the fallacy of the stolen concept” – the act of using a concept (slave-contract) while denying the validity of other concepts upon which it logically depends and from which it attempts to derive meaning. In short, a slave-contract is a self-refuting idea.