For example the HA will inspect the property every year to make sure it is up to standards. 

I am concerned if this strategy works buying properties from Auction sites.

We don't directly manage properties.

Similarly, if you put several Class D tenants in a Class A 4-plex, what do you think will happen to the property?

This is a very popular incentive in the city of columbus where tax abatements can lower taxes by 3k a year. on income of 60k for a traditional triplex that we build that would be lowering operating expenses by 10% if you assume approx 40%. it makes a big difference but I was wondering if anyone has actually seen the benenfits over time from holding these properties or investing in similar areas in urban core adjacent through renovations or new construction. there are benefits to selling them obviously but please comment if this applies to you!! 

My first property is in Warner Robins GA.

what were some things that drew you to these specific properties?

Generally - the depreciation on the structure, mortgage interest, property taxes, repairs & maintenance, insurance, property manager, utilities, vehicle expenses (mileage), professional fees (reports/CPA), home office (office supplies, percentage of utilities, continuing education).

Pensacola is a great market for investing and the number of properties available right now is up so there are actually some on market properties with potential. 

I previously owned rental property but sold them and am now looking to get back into real estate investing.