Answer:
Yes,
Step-by-step explanation:
Yes, in this scenario a verbal release would be valid and enforceable. In any scenario where a verbal agreement is made that includes exchanging two things of value automatically becomes valid and enforceable. In this case, Keller Construction is giving up the contract with Sullivan which is valuable to them in exchange for Sullivan's service in finding another suitable candidate that can provide similar value to the company. Therefore making it a proper exchange of value.