Two-Edged Vengeance — Todhunter Ballard

Jet Cosgrave comes back to his home after five years brooding over the loss of his father's ranch to his smooth-talking Uncle Lin. He hires a crew tough enough to match Lin's own gang of killers. Not only does Jet have to fight his own uncle, but there are also the Polsens, the hill people who hate Jet almost as much as Lin.
Judy Polsen has loved Jet ever since childhood but Jet's romantic life is complicated by another woman. Alice Austin, the pretty Easterner who came West to marry Jet's uncle, wavers when she finds out what kind of man he is. Her protection of Jet, after he has fled wounded from Lin's gang, doesn't help the engagement any.