Whether you should use a hard money, broker or private money would depend on your goals & priority (speed, communication, pricing, etc) so highly recommend considering a variety of options!

One thing I can tell you for sure: Section 8 renters are more likely to be entitled, difficult, non-communicative, problematic, evicted, trashy, etc.

I did look at some of the material participation criteria and we should easily surpass the requirements since we pretty much spent time improving the home ourselves, managed all guest communication, etc.Thoughts?

No communication again.

And frankly I don’t care why they want to sell in the early stages of communication.  

If you send snail mail, be sure to send certified so you have proof it arrived in human hands.Personally, it's baffling how so many people have poor communication skills when we have so many opportunities to communicate in today's world. 

My Realtor has since voiced that there were bad operations on the team and multiple mishaps with other clients — Realtors putting amendments in front of clients the day of closing and their inability to effectively communicate with clients the amenities of the units.

Once you have gathered a few potential candidates, it's important to ask them about their experience, any specialties they might have, and for references from previous clients.Clear communication about your expectations and the scope of the work is crucial.

A few things important to our team would be a strong screening/application process, tenant and team communication capabilities, and digital key/gate access integration. 

Real Estate is get rich slowly, $150k to invest is an amazing place to be and a great achievement, but it's also not going to produce a life changing amount of cash flow every year.