Magic Bites by Ilona Andrews

Book 1 in the Kate Daniels series.
I thought this was urban fantasy novel worked really well. Frequent waves of magic have brought down many skyscrapers in Atlanta, and stalled cars. Sometimes technology still works, so Kate has two kinds of lights in her apartment, and drives two very different old vehicles, and occasionally rides horses. Kate is a mercenary investigator, fast with her sword and both sarcastic and funny, which often provokes a quick challenge. Kate has no family, so when her guardian Greg is killed, she wants revenge. During the investigation, she has access to his office and apartment. She dislikes vampires, thinks crusaders are crazy, and spars with the Beast Lord Curran, who can take human or lion shape. Together, Kate and Curran search for Greg’s killer, and I’m sure they’ll have more adventures together.
Brenda