Madison - Kathi S. Barton

Layla Marks had somehow been saddled with her family's debts. Now that nearly everyone was gone, it was up to her to make things right. Even at a physician's pay, it it wasn't nearly enough to do the things she needed to do, like put markers on their graves. Now, some idiot lawyers were ranting that she had some long-lost family because of some DNA test she didn't even take. Oh, well, it was too late to claim the inheritance now anyway. She'd missed the deadline.
Madison thought Layla Marks was one of the most stubborn women he'd ever met, next to his Mom. Even if she was his mate-he'd buy her a house and let her live in it. He'd stay in his apartment. Stubborn or not, there was no way in hell he'd let her walk away from that much money...