If a duplex has been fallen in distress (its probably beyond livable) you can ssume 30k per side plus whatever the exterior needs.

On the flip side she could probably get a lower monthly fee but they are motivated to find new tenants to make money on leaseups.

For instance, even in hot markets like Fort Worth, Garland and Richardson many investors have had a hard time hitting their #s either because of inexperience or having the wrong partnerships (especially for out-of-state investors). 

You'd find that in a private money loan and there are low interest-rate loans right now, even on the private money side, at least in CA. 

Right now I would like to buy a duplex and live on one side and rent the other side out!

(Side note, only 8 units so the bigger ones won't take us. 

All that said, this is a fairly hot market and a booming economy with plenty of homes in need of rehabs and renters.It's up to you, you could go 25 years with no storm, or get one a week after your first purchase.

If you're not a mortgage professional, you should find one that can help you understand which company does what on that side of the business. 

I am looking for a realtor(s) who know the investing side of the business. 

The fact they are complaining online might be an indication the property manager dealt with them properly so be sure to ask the manager for their side of the story.I hope this basic guide helps.