I know that's a grind but it's a price I'm willing to pay.

Loud noises and puke are annoying.

As long as landlords refuse to pressure the relatively normal commissioners to behave responsibly they will keep deferring to Eudaly as she is making the most noise and getting the most headlines

How do you handle tenants doing drugsHow do you handle noise complaintsHow do you handle vehicle violationsHow do you keep a tenant long term?

There are either calls complaining of our tenant or our tenant complaining about neighboring tenants too often (mostly late noise but parking, etc.). 

You don't have to be the bad guy giving out late notices, noise complaints, etc..

Howdy @Susan Grinde. 

From there, I went back to the grind and kept bidding on houses and got nothing, again.

One noise complaint from a neighbor and you can lose the income.I feel the same about air bnb, make sure you are ok with the rental by itself as a long term rental, in case any income you get from an adu or air bnb goes away with a city ordinance.Sounds like a marginal deal without, and a nice kicker for upside if you include it.We would probably do the deal if it was currently allowed by the city, especially if it was in a growing area metro area

At this point we've been reduced to just calling police for noise complaints when other tenants let us know but I'm not sure if there is anything else I can do shy of aggressively demanding the other owner get his tenants under control.