There are numerous part time agents in this area doing in excess of $3 million annual volume.I know this comes down to my own goals and risk tolerance, but do any of you have an opinion or advice when deciding who to go with?

My perception of Aurora is not that.

That property has been for sale for a while on numerous sites. 

While they're great and have invited me over numerous times for a beer and BBQ, I don't want to blur the lines of our Tenant/Landlord relationship.

Section 8 Bloghttps://www.biggerpockets.com/blogs/9232/55313-intro-to-section-8---your-perceptions-vs-my-realities

Along the way the GC and subcontracted plumber mentioned numerous times that they found great news or thought of more efficient solutions (i.e. the mainline plumbing under the basement was intact--that they had assumed was all broken and needed replacing).

They could be unsavory for numerous reasons (as an extreme they could be child molesters or drug dealers).  

Section 8 Bloghttps://www.biggerpockets.com/blogs/9232/55313-intro-to-section-8---your-perceptions-vs-my-realities

Yes too numerous to describe in a short reply - plus ethical issues

Then he discovered the judge from Housing court had previously put a demo order on the house due to a past owners negligence and not correcting numerous code violations, also recorded on title.