Answer: The agreement contains a covenant that runs with the land.
Step-by-step explanation:
The theory under which the new farmer can successfully recover half of the costs for maintenance from the rancher us when the agreement contains a covenant which runs with the land.
In this scenario, it should be noted that the elements for both the benefit to run and the burden to run are present. In such case, the doctrine of detrimental reliance can not be applicable here.