The basics still stand the economy is in incredibly low savings, extremely high debt, and the most underlying and impactful signal has fully priced in a drop-- oil.

If the dumpster and parking have been there a long time, could it be something like adverse possession where you retain the right to keep them in place? 

One option is you can use a DSCR loan and pull out 75% of the appraised value, you get to retain the asset and you should be able to cash-flow a couple of hundred bucks a month. 

When looking for a PM, consider these criteria:1) the experience and credentials of the broker who supervises the company as well as the lead property manager2) the services they offer and how they line up with your needs and expectations3) the use of technology to make their job and yours easier 4) if they have a landlord-tenant attorney on retainer to help guide them on legal issues (not to mention the creation of lease agreement, landlord forms and notices, etc.)5) their process and policy for a) listing, b) application, c) tenant selection, d) routine inspections, e) maintenance services, f) property and tenancy update reports to you, g) lease enforcement policy, and f) move-out process.6) property owner reviews (caution: you can't always rely on Google reviews, because they may not reflect actual quality of the company, but still) 7) beneficial programs for both owner and tenant 8) a property management agreement that would indicate they know what they're doing and have the experience to know what matters in a PMA.

Being the warning signal to other investors is admirable, but it is a low paying job.

Lawyer Is going to start you at a $3k retainer fee and charge you $350-$550 an hour to work on this.

 Get a Real Estate attorney and put him or her on retainer. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

I am taking what was once an industrial warehouse and converting into a quadruplex on signal mountain.

Additionally, this option allows you to retain full ownership and control over the property, enabling you to benefit entirely from any appreciation or profit from a future sale.