We took the salesperson course from ERA in Worcester, took the test and then started shopping for investor friendly brokerages that would i) help us get established as agents and ii) allow us to grow our investment business.  

Justin,Great question and one that you want to answer on the front end and will have as much to do with the "who" you are working with as where you are investing.An established company with longevity should be the type of company that is going to have demand for their service and product into the future.  

Establish your buying criteria (cash on cash, cashflow, cap rate, etc), then find or build a calculator that measures those in a way that works for you. 

I'm 19 years old I don't have any credit established and I have a part time job at a grocery store so you can see I'm not the best candidate.

Do you have a company name established in the USA?

What he has done since acquiring them (all within a month) is re-established a condo board with himself as president and wants to get the association back up and running.

How to establish a LLC?

Then I'd be on the lookout for established wholesalers and investors in your area that pop up from your keywords.4.

Is everyone's life established and predictable? 

The note buyer would then perform his own due diligence to establish his estimate of property value, rental potential, etc ...