If the owner employs a management company, then the management company is required to obtain the business license - not the property owner.according to the tab (Profits Tax) on the same page above, I should NOT file form RD-108 either to pay KCMO city earnings tax, because I am a passive investor, and not actively involved in the management of my property.The problem is that, I did submitted my business license application a few weeks ago (still in the process) before I checked the KCMO web side.

If things get complicated, then yes, employ the HVAC specialist for their expertise.  

Hopefully you don't work for same employer or same department. 

I've recently changed careers (01/2017) and am self employed as a RE Agent so I don't have a steady income to pay it down!

Most common treatment is to treat it like a business =self employment income and then take a huge loss against your ordinary income

Does this mean that that mortgage company would be my employer, or would I still be looking for a job after the process is complete?

In fact, providing substantial services changes STRs from a rental activity to a business and triggers self-employment taxes on the net profit.

Mistakes in a Solo 401k (have to be self employed and no w2 employees other than spouse) can usually be fixed.  

In most cases, the net tax is not significant, and you will still very much reap the benefits of applying leverage such as higher cash-on-cash return.If you are self-employed with some kind of side business, and that business has no employees, you would qualify for a Solo 401k plan.  

Also, what are your employment plans for when you separate?