Or you can do your research here and find education on FSBO and get verification for your individual locale on procedures and costs.  

Wish I could know more about my county's procedure, any types for an investor in Ontario county?

You credit her for interest on the deposit per your state interest amount for the duration of the 10 months she lived there.Check NOLO for your state laws for security deposit procedures and other great info Check BP forms for security deposit statement forms or Ezlandlord on line

However, filing yourself is not recommended because there are very strict rules and procedures in place.

I currently have a tenant in Ohio whose lease term is coming up for renewal. I do not want to renew the lease. What is the proper protocol for informing tenant? Thank you.

My suggestion is to be sure to spend as much time on your policies and procedures for what to do when rent is late as you do about with pre-qualifying a renter. 

Read the lien law so you know the procedures and required timelines.

While this is all great news if  I want to form the LLC, this whole procedure and more research has led to other options.

They are one of the largest RE firms in the city with solid process and procedures with protect both owner and tenant interests.  

If you have you business plan created for your rental properties I would suggest you share that plan with them and also make sure that their policies and procedures match yours.Here is a list of questions I would suggest to Ask Prospective Management Companies, I would also make sure you know what you want the answer to be first.