Murder For Lease - Wade Dalton and Sam Cates Short Stories, #3

Leasing is a cheap way to get the use of land... Until the checks get too high. Then, murder becomes a negotiating tactic. When farmers get murdered, Wade looks at the money trail. One is the lease of the hunting rights to the farms soon after the murders. When he digs further, he finds another kind of lease: oil rights. There is a connection between the deaths and the families who hold rights to the land.
But can Wade find it?