So in telling the homeowner his options, the broker has more than complied with this standard.  

You just proved that potential tenants WON'T find a different place to live if they don't agree with your rules up front, they'll just do what they want until they're caught.People don't tend to start out being intentionally non-complicit, it something that may happen over time and with change.The contention that I am dispelling is that there is no point in having a rule that isn't going to be complied with because if that were true then there would be no point in having rules against late rent.

Keep after it.Make sure you are complying with your states landlord/tenant laws such as providing a document showing disposition of the security deposit (retained for unpaid rent, etc)

Furthermore, the HOA must comply with your request to add a second mailing address because "all mailing-related requests fall under Civil Code section 5260, and the types of notices that may be sent to two address are described in Civil Code section 4040. 

Landlord agrees not to take any legal action as long as the tenant complies with this agreement.

Only standard qualification which the tenant doesn't comply with

And what will you do if they refuse to comply?

While every state & province has their own regulations, you need to comply with the legislation in Ohio.  

Eviction actions are state court proceedings, the state courts will likely comply with local law.

Here is situation:My tenant for over two years parked a trailer in the backyard (other neighbors also complained about this tenant in past for drug use and multiple cars coming in night ) notice was sent for compliance of lease for removing truck in a week , he didn’t comply and I sent him 60 day vacate notice.After that he stopped paying rent , then we serve him 3 day rent pay notice or face eviction and obviously he didn’t paid rent ,I tried cash for keys but he didn’t responded and I found there are few people living in that home who had already eviction done on them so they are pro and they know what they are doing, now case is with eviction(turn over to eviction company in that city).Question:Tenant pays water and electricity , water is under my name I pay for water and he pays me per bill and electricity is  under his name but will get defaulted to me if doesn’t pay it.So my question is what to do in this situation if he is not paying water and electricity.Are there any suggestionsPS :I will update the summarized progress so others can benefited (if any).