Whiskey for Breakfast (Addison Holmes Mysteries #3) by Liliana Hart

The Private Investigator's Handbook

Rule #1: Don't break the law

Rule #2: See Rule #1

...And then there's Addison Holmes, who makes up her handbook as she goes along.

Addison is licensed to carry and she means business. The only thing getting in her way is a sexy detective, a neighborhood watch from hell, a dead billionaire, a black market sperm bank, and a long lost heir.

Piece of cake...