Varies on the laws of the state you are doing business in, demand, and local zoning laws.1.

Mentoring and Coaching should be a complimentary business not a primary one when they either have failed miserably or never even were an investor. 

@Adam M.Is Kevin a drug dealer or involved in some other type of shady business?

If I sell, I could use the cash from the sale of this home to get my business really going and even buy multiple STR permissable properties.

What you are describing is "buying" rather than "investing".

Maybe someone can help me understand It's called the overhead cost of running a business.

Yup, agents are in the sales business. 

I’ll attach a link to a page that describes this in detail as there’s some things to note. https://www.realtymogul.com/knowledge-center/article/what-is...3) who’s your ideal tenant?

Especially the first one where you don't have enough properties to hire one and you don't want to do it yourself bc you're busy with either your W2 job or your business.2.

For example, I am a little concerned about some aspects of the business cycle recovery and a potential for a double-dip so I lean toward the safest part of capital stack which is debt (or low-debt equity).