Are any of their things violating any fire escapes? 

You must register your entity with the State of Ohio or you will be in violation of the law and will end up in The Cleveland housing court and your headache will really start. 6.

Fees and violation fines incurred from tenant responsibilities are a different matter.

And the money could not come from the real estate agent because they would likely be violating the Real Estate Settlement Procedures Act (RESPA). 

But ultimately you can give a tenant notice if there is excessive screaming and yelling that if they are not able to maintain a quite environment you are going to have to ask them to leave due to violating their lease terms (presuming you have something in your lease like that).  

Paint an alluring picture of what the buyers life could look like.Lastly, remember fair housing rules (although a flat fee broker should review and eliminate any violations as part of their quality control process).

Actually sounds kinda like some sort of fair housing violation 😬

Could this be a DIY kind of thing, If so is there any permits or code violations i should be aware of?

if your buddy has a lease that runs through July 2025 and has been paying rent on time with no lease violations, the landlord generally cannot just terminate the lease early without cause.

If you see someone violating the rules, create a post with "@moderators" and we will receive a notification and respond.Again, welcome to BiggerPockets and happy investing!