Never been to Ohio myself but jet black foxes are genuinely fascinating and not as impossible as people assume. Melanistic foxes do exist - they're a real genetic variant, similar to how you get black squirrels or the black phase of the red fox that was actually quite common in fur trade records from North America centuries ago.
That said, the consistency of sightings in one specific area is what makes it interesting. If multiple people are clocking the same animal repeatedly it suggests a resident individual rather than a one-off wanderer, which raises questions about how it's survived and whether theres a small population.
Would love to hear more details from anyone who's actually seen it. Size compared to a standard fox? Any unusual behaviour? Sometimes what people report as a "black fox" turns out to be something else entirely when you dig into the description, but sometimes it absolutely doesn't. Keep the sightings coming, this thread has legs.