Sorry Paula, but that's bad news.
Jim Renacci should absolutely not restrain himself to two terms, not unilaterally. He is a strong and effective conservative voice, and when you restrain yourself artificially like that, you cause all sorts of problems when you enter a legislative body.
First off, the constituents and organizations that support you have to find another person after that time, no matter how good you represent them.
Secondly, in a legislative body, so much is run off of seniority. You will effectively cap your own effectiveness while doing nothing to take down the corruption of the system if you alone commit yourself to two terms while not convincing anyone else to join you.
By all means, term limits are a great idea, but choosing them alone only hobbles yourself. We need to have them applied for everyone in Congress, not just conservatives.