I own three properties in NC (where I live and have a W2 job), which I manage with an NC LLC I just started.

I would strongly urge you not to use a manager.

I am an experienced renovator, having done work and management on all aspects of my own properties from the foundation up for 18 years.Since the State laws are new, I'm excited about the possibilities, and looking to chat with other Owner/Builders about the feasibility and pitfalls.I guess that my biggest open questions are about foundations and waste water management requirements in conjunction with an existing multi family building. 

Initially I managed renting it out but as soon as I used a decent realtor it made it so much quicker and raised the rental amount.

Ideally before you purchase your realtor/lender will provide you with a property management company who is willing to provide resources, leases, and whatever you need to get house hacking.

The easiest route for showing the property and running background checks would be to hire a property manager.

When doing rental comps, I use the MLS, Zillow, Rent.com, Conrex, Evernest, and about ten other property manager websites that are local brokerages and manage over 100 homes.

2 of the other investors are sharing property management responsibilities (and are being payed standard property management fees split between them).

It's much harder than it used to be to get the return which makes it worth the hassle (assuming that you are self-managing).

Olympic sized pool, hot tubs, on-site restaurant, yoga, pilates, gym, steam, sauna, and management company to take care of it all.