Riley Thorn and the Dead Guy Next Door by Lucy Score

Psychic Riley Thorn teams up with private investigator
Nick Santiago to solve the murder of her
underwear-dropping neighbor Dickie Frick and expose a
corrupt mayor, all while faking an engagement for the
investigation.

This book’s main concerns are; alcohol (frequent),
erotica, explicit sexual activities/nudity, explicit sexual
dialogue, patently offensive sexual content, pervasively
vulgar content, porn, profanity, prurient behaviors, and
violence.