Mischief in Montana by Pamela M. Kelley

Travis Jones has been in love with Isabella Graham for what seems like forever, but he's never done anything about it, especially since his best friend Christian was dating her. But now that Christian is married to someone else, Travis is finally ready to make his move.

But Isabella has no idea how Travis feels. She thinks of him as her bossy friend and an attorney that she does a lot of work with. She would like to date Aidan who just moved back to town after living in NYC for many years as a celebrated artist. Aidan seems somewhat interested but is hard to read, making him that much more of a challenge...and has Travis wondering if he even has a chance. But he isn't going to give up trying.

Add in Missy, a new bubbly blonde realtor that Isabella has to train, and her conniving, fake Southern Belle cousin Bethany, who is newly divorced and has set her eyes on Travis, and Isabella has quite a lot to deal with!