Who must sign a joint control addendum to a home improvement contract?

The correct choice is that the owner, contractor, and joint control officer must all sign a joint control addendum to a home improvement contract. This requirement is in place to ensure that all parties involved in the construction project, particularly in cases where a joint control arrangement is being used, have a clear understanding and agreement on the terms of the project.

The joint control officer serves as an intermediary who oversees the release of funds and the completion of project milestones, promoting accountability. By having the owner, contractor, and joint control officer all sign the addendum, it ensures that everyone has agreed to the stipulations regarding the management and control of the project. This collective agreement helps mitigate disputes and protects the interests of all parties involved in the home improvement contract.

In this scenario, the involvement of all three parties indicates a cohesive commitment to upholding the obligations detailed within the contract, underscoring the importance of transparency and collaboration in construction projects.