Bride Bargain (Prairie Promises #1) by Kelly Eileen Hake

When dropped from the wagon train along the Platte River for not pulling their load, Clara Fields is determined to find a way to provide for her newly-widowed aunt. So she strikes a bargain with an aging storekeeper that in exchange for finding a bride for his son Clara can have his house to run a boardinghouse. But Dr. Saul Reed is not interested in getting tied down to Buttonwood in the middle of nowhere, and he certainly has no plans for marriage. Can he shake his determined matchmaker, or will he strike a new bargain with Clara?

The Prairie Promises Series:
Book 1 - The Bride Bargain
Book 2 - The Bride Backfire
Book 3 - The Bride Blunder