Personally I would find the best-quality three or four unit I could find.  

Ask to see a project that the contractor is currently working on too to see the quality of work they do.

I'm targeting a C+/C neighborhood where I feel there is a need for more quality agents.

I believe that at the level you are in the clear and working with a quality, salaried renter class tenant. 

We're live in our owner occupied 2 unit building, and are realizing the importance of attracting high quality tenants so we can co-exist peacefully and happily at our home. 

I'm looking to purchase a property and want a reasonable price, but quality and trustworthiness is much more important.Thanks in advance for your help.

However, I am currently only interested in local purchases significantly below market price or that have outstanding value adds. 

I look at criminal, credit record, outstanding debt, whether their addresses match, etc.

I only have experience as someone looking for a new build home lately...but Brookfield Residential and Lennar Homes seem to have the best reputation, as far as the quality of their homes goes. 

If they don't place you a quality tenant,  too bad.