Ask the students whether the result would be the same if the owner had said, “I will pay you
$1,000 if you will promise me that you will paint my house by October 1,” and the house
In the previous example, change “promise me” to “agree” and “I promise” to “I agree”, and ask the
Then ask your students for the results if the owner says to the house painter, “I will pay you $1,000 if
you will paint my house by October 1,” and
a. the house painter completes the job, but is not paid or is paid only a portion of the $1,000 and
sues the owner.
This is a unilateral contract offered by the owner, which can be accepted only by performance of the
act (painting the house). In (a), the house painter accepted the offer and would prevail in the
The difficult problems for your students are in resolving the following:
The owner says to the house painter, “I will pay you $1,000 to paint my house by October 1.”
The house painter says to the owner, “I agree and promise you excellent work,” but does
not do the job, and the owner sues for damages after paying another painter $1,300 to
The point for students to remember is that an agreement should be clarified in writing if possible so
that both parties know whether it is a unilateral contract offer or a bilateral contract. This
CASE BRIEF: Aon Risk Services, Inc. v. Meadors
267 S.W.3d 603 (Ark. App. 2007)
FACTS: AON Corporation sent out an “Interdependency Memo” to its AON Risk Services and
Combined Insurance Companies subsidiaries. The memo encouraged the brokerage offices to
spread business to AON-affiliated companies, and created a bonus-pool for the revenues
created by the transactions. Meadors, a broker under the AON Corporation, generated a
successful agreement between Combined and Dillard Department Stores.
Meadors did not receive the bonus-pool money generated from the transaction, and
sued for breach of unilateral contract.
ISSUE: Were the terms of the Memo sufficiently definite to constitute an offer?
REASONING: The Memo has definite terms and is an offer because it specified the percentage of premiums
that will go into the bonus-pool and also required that the pool be distributed annually. Due to
the unilateral nature of this contract, Meadors could accept the offer simply by performing the
particular task required.
DISCUSSION POINTS: Have the students discuss the Aon Risk Services, Inc. v. Meadors case where an
insurance agent won his case based on a unilateral contract theory.