There are 2 books in the Vegas Sins Series series. The newest book is Covet which came out in 2018.

1
Vice

Book cover of Vice
Las Vegas has it all—casinos, gambling, money, and women. For a handsome business entrepreneur, it’s paradise. Wearing success like a well-tailored suit, it’s business as usual for Liam Doyle while he runs his multi-million-dollar empire…until a pesky protester catches his attention. Staging a one-woman demonstration, Kate Callender has the potential…
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Alex just acquired Sin City’s hottest casino hotel, and he’s determined to make Vice the ultimate pleasure palace—along with the mind-blowing new club, Covet. But behind the successful entrepreneur façade, Alex struggles with a past that continues to haunt him, day in and day out. After a surprise hookup with…