Thats probably because most of their cash was spent on cigarettes, delivered pizza, and other fast food cartons I see in their trash bins.Unreal!

The deferred maintenance was significant- 3/4 of the roof needed replaced, the hallways were incredibly dirty, 3 vacant units that needed complete rehab, residents had anything from holes in their ceiling to faucets shut off because they were leaking so badly, landscaping overgrown and/or dead, and the entire building smelled like cigarettes and urine.

The lower tenant caused the fire in that a cigarette was the source of the fire.

So I turn down smokers who don't tell me they smoke (non-smoking house).   

I inherited these tenants' fairly good pay on time both are related i just have a little of a issue with one tenant son he is on the lease he's constantly in and out the building at odd hours of the night also a little bit of a pot smoker I should I speak with the parent about this ?

Only so much someone will pay, you tack on those fees and airbnb or VRBO fees and the markup is starting to look like the markup on cigarettes

This helps you keep an eye on the property when it's vacant as well as ensure if your tenants are following your house rules.We use Minut noise monitors, which can also detect motion, temperature, humidity, and cigarette smoke.If you have central heat and AC, a Nest thermostat can be an option too if you want to set limits on the temperatures since you're paying the utilities. 

I wish I had some before pictures of the inside...it was pretty bad, major smokers

If the applicant reeks of cigarettes, they are not for me. 

We first provide a prospective tenant with a profile that lists our criteria for that property. ie, credit score, minimum income, non-smoker, no cats, dogs with fees/rent, etc.If they self screen themselves beyond that, then they fill out an application which must include a picture of their driver's license.