Dirty Ultimatum by Peyton Banks

Some things are too good to be true but are worth fighting for to keep.
Jordan Knight had to fight to gain respect as a policewoman. Nothing ever came easy for a black woman carrying a badge. One precinct scandal and everything she had built came crashing down. A move to a new city allowed her to start over and be closer to her sister. Her career and family were her top priority.
There was no room for love.
She was an expert at bringing down bad guys at work, but she was terrible at choosing men.
Until she met him. He was everything she didn’t know she needed in life. Older, a fierce protector with a dog as a partner, and possessed a particular set of skills that left her addicted.