A business is defined as an organization or enterprising entity engaged in commercial, industrial, or professional activities.

A salesperson working under a broker may engage in such activities.Are there any exceptions to the requirement that a Connecticut property manager have a broker's license?

This is not a business for stupid or knave individuals to engage in.   

He clearly believes in quantity over quality, but his lack of growth as a poster shows he is clearly not being engaged.  

Unfortunately in PA this does not work.If you are buying for cash then this isn't a problem because you can take title directly in the name of the LLC.If you plan to flip properties or engage in other short term strategies you should consider a corporation or a LLC setup to be taxed as a corporation.

Rates won't be dropping any time soon and the engagement requirements are costly - there's no insuring with a roof that is 15 years old and without 5 years of life remaining, any out-of-code electrical and/or plumbing, and foundation or AC issues. 

I also maintain my expense records on apartments.com - overall I liked itI plan to use both zillow (for listing) and apartments.com (for tenant engagement), in future

Many foreign banks doing business in the US for instance are engaged in both consumer and business/corporate banking.

Keep that in mind next time you engage in any interstate transaction. 

Tax planning is a different engagement than tax preparation.