One bad situation can harm all the properties.

In addition lower rents will decrease the value of a property, not necessarily its appraised value, because no buyer will desire to pay retail for properties with reduced cash flow.

So now your causing "harm" to the entire state of CA with such added debt load. 

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Check your lease, but in any standard lease, there will be some clause that says they have to abide by laws and/or not bother their neighbors or cause disturbances, etc.This means, you can say they have violated their lease - which then gives you the right to give them a remedy or quit notice.I have to agree with the others - even if they are sweet, and the notice of violations only boil down to the dogs running around and not necessarily doing any kind of harm - they are now your liability.  

Additionally, I am beginning to believe you don't live there to be the "house monitor" as this seems to be going on for a time period. 

If you give contractors a prize for finishing early on time, they will finish then to get the prize, but there is plenty that can be left undone without you knowing that will harm you later.

This slippery slope leads to practices that harm clients, damage reputations, and erode the foundation of trust that’s essential in the real estate investment industry.As brokers and lenders, we should celebrate the success of our clients.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Here is the source for the commission rate, right from the Sitzler NAR lawsuit judgement (bold text added):"In addition to training, Plaintiffs have presented expert testimony showing that Section 2-G-1 had the effect of stabilizing commission rates.