Looking to construct a duplex at a reasonable cost but also quality for long term durability.Thank you!

You can stay very small and have a great quality of life.  

@Rory DarcyRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Also, I wanted to convey that the type of investor I describe should on;y accept a quality tenant well above what’s typically considered acceptable in the industry.  

https://www.biggerpockets.com/forums/12/topics/1122318-quality-turnkey-companies?

Crime and Tenant Quality: With the higher crime rate in 76104, how much impact could this have on tenant retention and turnover?

So an identical neighborhood (income, crime, school quality, etc.) can cost you as much as a $100k less on the South side simply because your neighbors are brown or black as opposed to white.this right here is the gem advice.  

Lots of areas that pencil very well on paper but the quality of renter you will get is going to eat into any profit you may think you are getting.

I suspect most who requested cash for keys had previously received cash for keys.What I do instead is explain:- the housing shortage in my market and that an eviction will forever make it difficult to find a quality rental in this market. - I will ding their credit such that all credit cards and other debt will cost them more.- I will keep their security deposit for funds owed.- I will do my best to garnish future wages until their debt to me is paid in full.This has worked 100% time so far.  

Haha I bet there's been some crazy stuff out there but the one's I'll put up will definitely of better quality and insulated.