An agent impliedly warrants that he or she has the authority to contract on a principal's behalf and therefore cannot be held liable to the third party.

Impliedly Warrants

Indicates that a warranty is given by implication, rather than expressly stated, based on the circumstances or nature of a transaction.

Authority

The power or right to give orders, make decisions, and enforce obedience.

Liable

Being legally responsible for something, typically referring to the obligation to compensate for loss or damage.