As I have grown, I have learned (continually learning) more on how to structure my finances to ensure for financial stability during the unexpected that often arises while owning property.

Looks like you're in a common position. 

As a result, there is a common theme of real estate vs. 401k that pops up quite often.

But I'm just trying to figure out how different factors play into each other and how to come up with common metrics, and learning what to look for to determine what a "good deal" means to me.

A closing 4 days after end of inspection,  is not common.

This is a common theme....so many cities and permanent residents hate STR. 

I get there are some things like yard maintenance, and I know there are unforeseen expenses that can arise, but is this mostly for putting away $$$ for future expenses?

The common problem here is recent comps in the area.

This is a common beginner mistake. 

Hello,I just closed on a multi family property and the old owners told me they would not supply any appliances.They let the tenants know that the existing oven, refrigerator and washer were able to be used by the tenant, but would not be serviced or replaced.Is this a common practice?