I am curious to uncover how all the rest of the investors (and agents and brokers) here feel about real estate agents and real estate agent fees in today's digital age where we have so much information that we can dig up on our owns from: county records, mortgage/liens, previous purchase prices, land values, tax histories, rent price history and the advent of online listing services and other sources of real estate wholesale listings and auction agencies online.

I had chance to snag a build-ready remainder of a development, 20 some lot's, at $25k per.

Long term goal is to earn 20k per month in cash flow by age 50 and ideally 10k by age 40. 

I can't imagine 10x being normal no matter the area or building age/type.  

Build ages; you’ll find a lot of early 1900s homes here (Colonials, Duplexes, etc.).

@Jonathan Warner - not to oversimplfy but historical data from your properties can serve as a helpful benchmark, but you’ll want to adjust for property type, age, and expected repairs.  

They measure beds/baths, square feet, construction type and age.

One thing to consider is the age of the property - it is not uncommon to see pre-1920 construction in this area. 

But in general answer to your question (I'm in North Carolina, not South) - I have a provision in my lease that ALL person's age 18 or above (at the time of lease start or renewal) must have an application on file, that includes credit and criminal / background - and I have the right to an updated credit and background report from all adult residents prior to lease renewal.

If they used newer builds as comps, they may have adjusted downward for age even if your house is fully renovated.