The Legacy by Diane Amos

June 1887. Jeremiah Dalton arrives in Lowdown, Texas, to claim his inheritance and discovers that his father's will has conditions attached. He has six months to learn the ranching business or lose everything -- and he must rely on the help of foreman Abigail Wilcox, the most ornery woman ever to cross his path. And if Jeremiah fails to live up to these terms, half his share of the estate will go to Abigail . . .