What is anullability?
Voidability occurs in the situation in which a contract is initially valid and produces legal effects, but due to certain circumstances or irregularities, there is the possibility that one of the parties involved may request its annulment before a court. Meanwhile, the legal act remains valid and produces effects.
In the event that the judge declares it voidable, the legal act will be considered null and void from its origin retroactively, that is, as if it had never existed, which will restore the previous situations of the parties before it was held.
For example, if a sales contract is canceled due to a defect in consent, the parties must return what they received and remain as if they had never contracted.