I can't recommend an arborist for you, but I found another site where they were addressing your exact problem, and suggested spraying the tree with "Florel."
Stop A Tree From Bearing Horrible Smelling Fruit - UBC Botanical Garden Forums
Another option discussed is to use high pressure water to blast the blooms off before they become fruit. The problem with that is that if the pressure is too high, you might also strip the tree of its foliage.
You might also contact U of K's Agriculture/Horticulture school to see if they can recommend someone to you, or if they have other suggestions to try.
Horticulture | Cooperative Extension - Jefferson County