The premise, as I understand it, is that everyone and her uncle is claiming that they need their pets as emotional support animals already, so why not make it fair for the folks who haven't figured out that loophole and grant all pets the right to housing in Berkeley.  

I am actually very consistent in suggesting that people not let emotions, chest-thumping, and gamesmanship get in the way of business.  

If you follow the "collateral" theory of lending, as I do, I make it a point to understand the asset, the liquidation value and the barriers and obstacles to collecting and maximizing yield.If you follow the "emotional equity" theory, as my buddy and author Gordon Moss does in his book, 'Performance Anxiety' then you put much faith in the ability to extract cash flow and yield from the borrower's familiar attachment to the home used as security.Yesterday I attended a conference of court-appointed receivers, who are people empowered to do such things as intercede with collecting rents, cash flows and till taps.

It's a designation that is going to give you a leg up on other investors and help guide you towards success.Do a search on "slum lord" here and you'll see lots of posts from other people that have gone through almost the same thing as what you're experiencing.Here's what I would do (depending on how "safe" you feel expressing emotions in your family.  

They're asking for too much and seem emotional invested in the property due to the prior work that was put in.

If you can bring it down to an emotional level that hits their triggers, even better. 

Serve 3-day to Perform or Quit by registered mail which outlines the violations (not the emotion or inconvenience caused to others). 

Some people aren't emotionally attached to the properties and see the real value in the tenants.

Sellers need to remove themselves from the emotions of the home, this goes for investors as well.Before a seller puts thier home on the market, they need to do the research, either themselves or by having a local Realtor in the area do it for them (which will also get you the most accurate data).

Now you have saved yourself time, added a level of professionalism to your business and created some emotional distance between you and your tenants.Last point... while you are automating your rent collection policy, automate your late fee and eviction policy too.