More and more single Mom's, in addition to the normal group of drunks, addicts and crazies.

Such rooming houses tend to cater to a population of professionals/labourers who have the commonality of employment.The social rooming house:  These establishments provide a vital role in housing the "down and out", the mentally ill, the addicted and others on the fringes of society.  

I'm also not a fan of L/O's to buy since you have so little control, but you can do sandwich lease options if you thought it made sense.I did one where the owner bought the house for his son and financed it at 5% I/O, that thing cash flowed pretty well, but I stumbled into it and pitched it because the guy was loaded and had bought the house for his son who was a drug addict and trashed the place and he wanted the headache gone more than the money. 

Money saved will support my soon to be addiction and act as my real estate financing for BRRRRs.

Many struggle with addiction and other issues that negatively affect their life. 

You might be able to appeal once or twice, but at some point they have to raise money so that they can continue to feed their addiction to overspending

@Robert C.Drunk and straight up addicted to low interest rates - sure is fun right now!

Accept that your units may attract other smokers and users of other addictive substances.

I'm an addict! 

I've been wanting to renovate my home kitchen and bath since I purchased my coop three years ago, but I acquired two multi-families in the fall and have been addicted to making improvements to command higher rents.