I am exploring the state of Colorado for the next 8 days. 

If you think it's expensive to hire a professional, try hiring an amateur.I think you're making a mistake.

We manage properties professionally.

I started trying to invest in 2015, and I currently have three rental properties in BC (an apartment, half duplex, and single-family house), but i'm looking to explore other investment possibilities. 

These are professionals with additional training and a stricter code of ethics.

Elise, I am from NJ and my properties are in PA, my PM has never charged that. 1099-MISC is for sub contractor when you pay them, as a PM you are not paying owners because we own the property, we pay you and if anything we should be sending that to the PM, but you should be professional enough to report your income, that income for you is subject to SE tax which you would have to pay. if you are going to charge your customers to cover that cost on top of your normal rate you charge, you may not get any business.

@Gui Qiu,  You will definitely need an experienced professional to set this up.1) Property owned via foreign Corp : 2) Property owned via foreign Corp via US corp: Both of this will avoid estate and gift tax. 

I have a 20 unit that is professionally managed, and they charge us 5% of the monthly gross, 1/2 months lease up fees and a lease renewal of $100.

I know what real estate is otherwise I wouldn't be on this site, I'm happily with someone and we plan to get married, I just wanted to give a bit of relief in such a professional  environment but I'll think twice next time.

These are professionals with additional training and a stricter code of ethics.