White Lies by Jayne Ann Krentz
Book 2 in the Arcane Society series - though this is set in contemporary times while book 1, Second Sight, is set in late Victorian era.

Clare Lancaster is a Level Ten para-sensitive – and a “human lie detector” and a member of the modern day Arcane Society. Over the years she has come to accept that someone with her extraordinary talent is doomed to have relationship issues. Clare has even been rejected as “unmatchable” by the Society’s matchmaking agency, arcanematch.com To her frustration she has ben applying to the Jones & Jones, a pyschic detective agency, and continually turned down for a job. In a way, Clare’s whole life has been a lie. Now, however, she has just met the half sister and family whom she never knew until seven months ago.

Her father summons her from California to play a role in his business empire. Clare rejects the offer. But after meeting Jake Salter, Archer Lancaster’s “financial consultant”, she is convinced that things aren’t what they seem. Salter’s careful conversation seems to walk a delicate line between truth and deception. Something sparks and sizzles between them – something more than the usual electricity between a man and a woman. Jake Salter is also a Level Ten para-sensitive with some dangerous psychic talents of his own. He, too, has been declared “unmatchable” by the Society’s matchmakers.

This one heats up pretty quickly as Clare and Jake are immediately attracted to one another and it doesn't take a rocket scientist to know where that is heading. The storyline flows fast as there is a murder within the first few chapters, Clare discovering the body, and several attempts on both Clare & Jake's life. The story leaves it open ended for continuation of the series. I've read quite a bit of Krentz and under her two of pseudonyms "Amanda Quick" and "Jayne Castle" and really enjoy her paranormal romances the best.