28 Unit Apartment Under Contract and Need Help!

[Abad Marroquin]

I have a 28 unit apartments under contract in Georgia. The purchase price is $450K

Now I am analyzing this deal. 

I have the rent roll, and I am requesting the operating expenses :

Property Taxes (I already got this from the county)

Insurance (I am getting a quote)

Matanance and repair 

Landscaping

Garbage

Power (If paid by owner)

Water and sewer (If paid by owner)

A copy of all leases of all occupied units

Year the roof was replaced

Year when last update took place 

The age of the AC units

What am I missing?