Whilst working as a PA for the Mayor, a part-time poet is charged to facilitate an affair between his boss and a much younger woman. The PA and his lover, his boss’ wife, decide to spin the situation to their own advantage.
There are a few things, “own advantage” is vague, need to know the goal. Was the goal existing prior to the opportunity? “The PA and his lover”, the lover wasn’t part of the set up so putting them in the payoff part of the logline is confusing. Leave the lover out as they are not the protagonist or impact on the protagonist. I can see what you are heading towards, but being specific will be your friend.
It’s a little hard to root a devious MC. Is his goal to “to facilitate the Mayor’s affair” or to use Mayor’s affair to his own advantage? What is “their own advantage” and why do we care? In what way would a poet be the type of person who has the longest way to go in this struggle?
My advice would be to tighten it up a little. As Blake Snyder would say, you’re “hiding the ball”, being vague and fearful of showing the big reveal.