Save your money when ever possible and use the banks to stay safe. 

So I have 30 parking spots and really should have 60 spots to be safe for the type of business that is renting. 

I also see under SVC status (PS, PS, PS) there's three tenants, safe to assume they were served?

If it is the only option, you may be able to find a company that will take on that liability and service the well to ensure it is safe. 

Are there any B and C class safe neighborhoods to recommend?

Happy to share the systems and techniques that work in New Jersey and help map out a plan that can get you on your path way to FI.

I feel stuck in a similar situation, I have $1M in equity in this house that I’m living in and renting the mother in law apt next to it , the problem of course is the 7-8% interest rates , have they not stopped the BRRRR technique in its tracks ?

I rehab for selling and rentals, I think sticking to the same products is always safe.

We have a duplex in the midwest that we have been discussing selling....Background:A few weeks ago tenant A called the police on tenant B due to a major domestic dispute they could overhear, they did not feel safe.  

There's nothing wrong with fixing something that is broken, but you shouldn't be making improvements to things that are clean, safe, and functional and that were fully observed by the tenant during the showing process.