Guarded Passion — Bonnie Dee

A struggling single mother.
Rianna Cutter strips to survive. It's the best paying gig for a young woman with little education and puts a roof over her child's head and food on the table. Working toward a better life for her son, she has no time or energy for love.

A tough criminal businessman.
Jonah Wyatt is ready to make a big change, moving away from his successful pot growing business into a legitimate enterprise. He's all business all the time and has no interest in finding love he doubts even exists.

Could love be more unexpected?
Their first interaction has all the romance of a business transaction, but from that rough beginning, Rianna and Jonah tentatively reach out to one another. As their barriers dissolve, the awakening of new love is threatened by family drama.

Third book in a series but can easily be read as a stand alone.