Lisa Grace - Where  Good  Meets Evil 

Mirabel, a successful entrepreneur who sold her dating service Love Sparks  for millions, can't seem to find romance in her own life. She returns to her hometown of Loves Park, IL for the holiday season even though it's the last place she wants to spend the holidays. 
The irony of Love Sparks and her failure to find romance, coupled with the hometown gossip that all her sisters and cousins are now happily married, makes her the talk of the town. Mirabel is forced to return home for the holidays as her father's hardware store must get an automated restocking system in place before the first of the year to keep his supplier. He stubbornly insists she is the only one who can do it.
Mirabel decides to stop talking to God, since He never answered her plea to find love. God meets Mirabel, and tasks her with the quest to find 12 angels masquerading as humans before Christmas assuring her she will then find "the one" destined for her.
Written in the Hallmark style of holiday romances, 12 Angels by Christmas is sure to become a Christmas Romance classic.