Questions:1) Rent controlled unit but not protected tenants, can they use this (which I found on google) against me to find reason to stay as I do not have 'good cause' in their mind?

You have full control of visitors' attention.Work with CraigslistNevertheless, it's possible to work with Craigslist without nerves, but it will demand a certain organization.

Please do yourself a favor and seek help for the demons that control you.

But some states have a 'force majeure' clause (the right of a party to suspend or terminate performance when circumstances, which the parties could not have anticipated and are beyond their control, make performance of the contract impossible or impracticable) in their contracts so look into that, as I'd imagine this would qualify.

Purchasing another rental property for 1.2m+ is not something we are ready to do at this point, one bad rental year and things spiral out of control real quickly. 

Say you have to leave $5-10K in... you now control a cashflowing asset at a fraction of the cost.And you don't have to buy all cash either.  

If their bad credit is due to life events mostly beyond their control, they will sacrifice and find a way to pay the additional money upfront to change their circumstances. 

I use Price Labs so I’m not manually controlling pricing.

For example if you are going to purchased something like (some) pest control companies or an alarm monitoring company where the income is contractual and reoccurring you will generally pay a higher multiple, say 5 times NOI. 

As soon as there’s a computer controlling it, it’s going to be expensive to fix.