I would consult a lawyer and listen to his advice but where I would try to direct this is the lawyer write letter to HOA that they do not agree with the HOA interpretation that the current CC&R does not allow STRs.  

I used several lease templates that I found as a starting point, then created custom leases for my properties from those, and had my lawyer review them.

Are you dealing with a real estate lawyer?

In addition if you use a title company or lawyer to handle the closing then they are legally required to report the sale to the IRS etc.

Request advice from anyone who is either a lawyer in Ohio or is knowledgeable and experienced with Ohio rental laws.

I have spoken to many lawyers.

*I am not a CPA, tax professional or a lawyer*I cannot give legal advice, so all of my advice is illegal advice.As far as I know, section 469 of the tax code is what allows for the "STR loophole". 

Can anyone make a good suggestion for a lawyer who could help with this?

I have a lawyer reference in NV that will give you a few minutes of time and they specialize in setting up LLCs.

This is why you probably need a lawyer until you get experience with all the details for operating in that state.