I'll admit I'm in the anti-condo investing school.

The city is very anti-STR.

I was asked to be at the meeting to be a witness that no price collusion or any anti trust violations were being committed.   

Shelter - rent control, anti short term rental regulations, nimby, etc., clothing - you’re taking advantage of third world workers paying them market wage instead of Californias soon to be $22/hour.   

Then install a very strong anti-theft door protection (a lot in Amazon). 

For your situation, it does sound more like an issue with the shower faucet, in which case, per code, you will need to change to a balancing, "anti scald" valve.

After reading about a few landlords having screening problems, threats,   and recent anti-landlord gotchas and pitfalls that landlords are experiencing (in various states) when advertising for a tenant, I was wondering.....

To the anti-landlord crowd, every positive will fall on deaf ears.

I am not anti-police.

@John Vail - one area of expenses i am finding out is lawn care - as this is a multi family , I think lawn maintenance might fall on you- so things like mowing, fertilizer, anti weed etc should be accounted for.