It's only considered harmful if it's dusted and becomes airborne.

Assigning contracts as a means to broker without a license, bogus inspections, and harm to the public.

Failing that, list them separately on Craigslist  (or the site of your choice) and attract the guys looking for one or two for an office or workplace.

Real Estate lies on value for all parties concerned but value is measured through compensation in this game.Definitely no harm in being your own realtor to gain access to MLS properties but you could still conjure up relationships with realtors where they can get more involved with your project not just as realtors but as project managers or even partners.

Don't harm your future by getting put on a "bad host" list.With that said, after the initial 30 day stay booked through AirBnB, you will have a feel for who the tenant is.

Let me remind everyone that no one gets harmed in this transaction.

We don’t know anyone in the area, but you might want to read our series about “How to Screen a PMC Better than a Tenant”, since selecting the wrong PMC is usually more harmful than selecting a bad tenant: https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processes

That said there's no harm in calling around and trying to find an agent who does specialize in that tactic - just be up front with whoever you speak with about your circumstances and goals.

There are alot of turnkey providers out there, I used Spartan Invest and they've been good to me and other investors I met in my workplace.

There is no harm in asking that bank that did the heloc what they may be able to do for a refi; however, they may not have the best refi loans or even necessarily be able to do your refi.