Secret Santa by Jill Sanders

Kara is eager to show her father that she’s capable of running the family’s ranch in Wyoming. When her dad and stepmother head out on a three-month European tour, she eagerly takes the reins. Her only problem? Her annoying neighbor has decided that he’s more fit for the job.
Nick has lived next to Kara all his life. Having a secret crush on the sexy brunette has taken a toll on his life. When his father falls ill and tells him the family ranch will be sold unless Nick finds a bride before Christmas, he knows just who he’s always wanted. The only problem is persuading Kara that he’s the right man for her.