The Amish matchmakers / Beth Wiseman.

Enhanced descriptions from Syndetics:

This Amish matchmaker is an expert at finding love for others, but will she find it for herself?

Widowed sisters Esther and Lizzie are the town innkeepers--and the town matchmakers. But when a new tenant moves into a guest cottage at their Peony Inn, the sisters are shocked to discover that maybe this time, one of them might finally find a match of her own. Retired dentist Dr. Benjamin Stoltzfus has signed a six-month lease at the cottage--and gentle Esther and spirited Lizzie are in a surprising competition for the kind doctor's affections. Dr. Stoltzfus doesn't appear to be Amish, but his last name and his mysterious background have the sisters guessing--and open to the possibility of finding love again.

Things really heat up when Benjamin's granddaughter, Mindy, comes to visit. Escaping her big-city life in Texas, Mindy has moved to Amish country to be closer to her grandfather and to embrace the simpler life she has longed for. But she's unprepared for what happens when an attractive young Amish man, who spends time at the inn helping out the widows, runs his lawnmower right into her little red sports car. Sure, Gabriel is cute and funny and nice--but can a romance between an Englisch girl and an Amish boy end well?

As Mindy and Gabriel find themselves thrown together time after time, they forge a friendship and start making matchmaking plans of their own. Which sister would be better for Mindy's grandfather--Esther or Lizzie? And as the two young people put their energy into playing Cupid, it looks like love and the life they've both dreamed of might also be finding them.