I based my yield by counting only taxes and insurance expense because those are unavoidable.

Mistakes are unavoidable but I do not want to make them because I am too hasteful.

Also if a brokers license is unavoidable, given that it has a 2 year experience as a licensed realtor requirement, what is the best way to go about doing this without taking on a career as a realtor?

I would prefer not to use OPM on my first deal just for my own comfortability, but I'm thinking that it might be unavoidable given the market I'm in. 

One recurring expense was trash violations, it is practically unavoidable.

I’ve reached out in other forum subject for GC recommendations and I know asking dumb questions to them is unavoidable to certain extent...Can anyone give me an outline or talking points to have while selecting contractors?

I'd rather work with one person instead of multiple, but I realize this may be unavoidable.

There's an unavoidable risk associated with owning anything: cars, boats, bikes, properties and businesses.That's what insurance is for.Also, don't assume hiring a PMC will protect you 100%. 1) You'll only be protected as good as they are2) No matter what any PMC does, there are bound to be lawsuits from tenants & ambulance chasing lawyers trying to "get rich quick".

Is this unavoidable?

In some circumstances, vacancy is unavoidable because time is needed to prepare the unit.