A good book to read for you might be The Millionair Next Door - it is based on a large scale,  decade long study on the behaviours and patters of millionairs - hint: most don't drive new carsMy vote is ditch the truck, buy something cool that someone else already depreciated for you and buy another rental property asap!

Your credit score and your savings are a result of your systems and your behaviours.

@Laura WilliamsCan you anonymously call CPS on him saying you witnessed hard drug use, disturbing behaviour?

If there are other tenants that are affected by your bad tenant's behaviour they will thank you for getting rid of them.

Podio doesn't by default enforce this behaviour, but trust me, there will be significantly reduced value if you build a "Customer Relationship Mamagement" (CRM) app that doesn't center around the Customers or "Contacts" that you are trying to maintain a relationship with.

No one has a crystal ball and a lot depends on people's behaviours.

It's a natural behaviour if you want to win, to achieve.

Likewise If you do not have the management and interpersonal skills to be a effective landlord to deal with toilets, tenants and trash you would need to hire a management company that cuts into your revenues.

Stick to the facts about the behaviour in the office and have a restraining order filed in addition to harassment. 

But that's just a poor choice.The biggest issues landlords have is their own behaviour.