Contracts II
Restatement Second of Contracts § 112
Requirement of Suretyship
A contract is not within the Statute of Frauds as a contract to answer for the duty of another unless the promisee is an obligee of the other's duty, the promisor is a surety for the other, and the promisee knows or has reason to know of the suretyship relation.
Copyright, The American Law Institute