This seems incredibly steep and not real. EIN numbers are free on irs.gov. Registering your business is just a filing fee with the state($100 in Ohio). The other registrations as you mentioned are low in cost.

You would probably want an attorney to draft formation documents and an operating agreement which can have some serious fees behind it depending on exactly what you want and the complexity, but I wouldn’t think more than $10,000-$15,000 worst case. Most of its just standard language fill in the blank stuff for a reputable business attorney. You could try to do this on the cheap yourself if you are comfortable with that route and it lowers the cost to <$1,000.