As for your income, you need to talk to a lender that is licensed in your area.  

Looking forward to being part of this community.Best,Max Are you licensed and insured to manager property or are you talking about managing property for yourself?

I don't know about your state but mine (TN) has a lookup tool that will show you the agent's original license date, the brokerage incorporation date, etc. 

Or does one need a special license / need to open a company?   

I get having a driver's license to verify identity, but recording your head turning like a mug shot is a little much. 

I recieved my real estate license at 19 years old, and you will face difficulty in closing deals due to your age as I did.

@Andreas Mathews admirable, but make sure you do some research so you understand what a PM can make.Starting your own PMC business will require 75-150 doors to make a decent living, depending on gross rents and your fee structre.Working for a SFR PMC as a PM, will require a RE license and you usually get paid a percentage of the gross rents the portfolio of owners/properties you manage generates.

If you have a PM that is stealing from you, they probably have all sorts of ways to prevent you from knowing that.I would be surprised if any licensed property manager is misrepresenting the rental amount on the statement.

Here’s my honest advise; consider studying for and obtaining your real estate sales license, and obtain a part time position with a real estate agency that will provide training, guidance, and oversight.  

Lower Repair CostsHiring licensed contractors for minor fixes can be costly.