You'll get smoked by trying to fight it out with the cash payer crowd.

If they say put up higher railings, additional smoke detectors, etc, complete it promptly and document it.I've been in the landlord business for 20 years, and I've always kept my properties to code and well maintained. 

They don't realize that a lot of what they see is all smoke and mirrors.  

.- Lighting fixtures- Smoke alarms / carbon monoxide detectors- Window and door repairs- Water heater maintenance

My greatest pain point is not that the deals failed, although that certainly adds salt to the wounds, it's the poor communication, false narratives, chasing (almost begging) for updates, lack of full disclosure, the smoke and mirrors, etc.

I have a tenant who is already late on his payments but he was smoking in the property and caused a fire.

Going from a 2-3 unit may also required some additional fire/smoke alarm work.

Many new investors get excited by high cash on cash returns in the midwest and buy rough properties in D areas and they get smoked by property managers, tenants, vacancy, capital expenses, repairs, turnover costs, etc. 

The home was on the market for an extended period of time because the renters smoked in the home so I was able to get it 20k under asking price.

Have cash buy their smokes, lunch, and their music.