@Albert Gallucci as many have pointed out, in the commercial space of 100+ apartment buildings and offices, property classes have some pretty decent industry standards.We started applying these to 1-4 unit properties around 10 years ago, which you can verify on our blogs, because we saw too many newbie investors not properly taking into account things like, neighborhood status, tenant pool, property condition, etc.Unfortunately, there's no industry standard for this, but you can use some basic logic to think your way through your own Classifications.

I feel like this gives me an instant screenshot of every expense for each building so I know Building A paid $1800 for insurance, Building B paid $2100 for insurance and Building C paid $2400 for insurance as opposed to having one account and seeing Insurance was $6300.

The rent from the other units will allow your to purchase a more expensive property than you could on your own, which could help you build the value of your portfolio (and equity) faster. 

This includes structural components of the building.

As important a consideration is how will you reinvest/spend the proceeds from the sale to build wealth.Hope this helps.

Many Texas cities are incentivizing developers to build affordable housing units, but challenges remain around keeping these homes accessible long-term.

Quote from @Kyle Carter: I want to buy an apartment building and rent it out to all section 8 tenants.

You could be overinsured on the building and lose money on not enough Personal property coverage.B. 

You're paying yourself back interest, the principal is out of the market and not going down, AND you're using the funds to build equity in real estate.

What type of properties are you looking to acquire to build your portfolio, SF, 2-4 MF, or 5+ MF?