Hopefully you don't work for same employer or same department. 

If the initial attempt to reason and create rapport with the neighbor through neighborly conversation is unsuccessful, I'd consider sending a certified letter next so that it's on record, start the clock ticking on that if it does end up being an attorney situation, and make friends with the local code enforcement department officers. 

Make sure the bank has a commercial department and develop that relationship.

This sounds like a very unique situation - I would recommend contacting the appropriate department (the assessor?)

You can find that info here: https://www.clevelandohio.gov/city-hall/departments/building... under "Electrical Permit Fee Schedule."

a lot depends on frontage, etc. best advice is to go to the city or zoning department yourself where it all happens.

I've spoken with the local zoning department and confirmed how the vacant land could be subdivided and for what use. 

I'd look for the current status of the property's inspections, such as the fire marshal, the health department, social services, etc. - as well as checking with the local municipality for any building or zoning infractions.

I completed the Department of Defenses Boots to Business course and I am currently enrolled in the Boots to Business Revenue Readiness course to help me learn how to write a business plan.

Call the building department of the town you are in and ask the general question.