Common Ground - Book #2 in the Common Denominator Series by Richard David Bach

When newly-married young private detective Kayman Karl and husband Raam Commoner agree to sell her P.I. firm to a sleazy competitor, they never expect the deal to open a Pandora’s Box and unleash a lethal storm of murder-for-hire, murder-for-profit, and murder-for-the-fun-of-it.