Relentless (The Fallon Sisters Trilogy #1)
P.J. O'Dwyer

Rafe Langston came to Maryland looking for land and a fresh start. Or so he says. The sexy cowboy isn’t generous with details, but Bren couldn’t care less—until he buys half her farm at auction and moves into her childhood home. Suddenly, the last man she should befriend becomes her only ally in solving her husband’s murder.
Soon their cozy stakeouts sizzle with unexpected desire neither one can ignore, threatening his mysterious plans and her promise to never fall in love again—especially with a handsome stranger whose secrets could shatter what family she has left.