There are instances where a party can engage in the anticipatory repudiation of their obligations under a contract. In essence, this is basically a party prospectively breaching the contract by repudiating their obligations in the contract.
A prospective breach of contract occurs where there is absolute repudiation by one of the parties prior to the time when his performance is due under the terms of the contract. Such a repudiation may be evidenced by words or voluntary acts but the refusal must be distinct, unequivocal, and absolute. Moreover, repudiation can be shown where one party makes additional demands not included in the initial agreement:
The law is clear that where one party to the contract arbitrarily demands performance not required by the contract and couples this demand with a refusal to further perform unless the demand is met, the party has anticipatorily repudiated the contract, which anticipatory repudiation relieves the non-breaching party of its duty to further perform and creates in it an immediate cause of action for breach of contract.
24 Hr Air Service, Inc. v. Hosanna Community Baptist Church, Inc., 46 Fla. L. Weekly, D1344a (Fla. 3d DCA 2021) (quotations and citations omitted).