The Pretender Bride (Central City Brides #4)
Cynthia Woolf

Robert Wallace was a skeptic until he watched his friends settle happily with their mail-order brides. When his own seemingly perfect family arrives, he's thrilled. Until he discovers his new bride is surrounded by layer-upon-layer of lies. He's been tricked by a scheming woman before and he won't be taken in by another one, no matter how innocent she seems. No matter how badly he wants her.
Katie is determined to keep her new family together, come hell or high water. And no one is going to get in her way. Not the man from New York who followed her to Colorado. Not her past. And not the stubborn, irresistible Scot who is her husband.